v3.22.4
Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2022
Feb. 01, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Securities Act File Number 814-00663    
Entity Registrant Name ARES CAPITAL CORPORATION    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 33-1089684    
Entity Address, Address Line One 245 Park Avenue    
Entity Address, Address Line Two 44th Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10167    
City Area Code 212    
Local Phone Number 750-7300    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Trading Symbol ARCC    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 8,839,437,115
Entity Common Stock, Shares Outstanding   531,369,291  
Documents Incorporated by Reference Portions of the registrant’s Proxy Statement for its 2023 Annual Meeting of Stockholders to be filed not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K are incorporated by reference into Part III of this Form 10-K.    
Entity Central Index Key 0001287750    
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
v3.22.4
Audit Information
 12 Months Ended
Dec. 31, 2022
Audit Information [Abstract]  
Auditor Name KPMG LLP
Auditor Location Los Angeles, California
Auditor Firm ID 185
v3.22.4
CONSOLIDATED BALANCE SHEET - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Investments at fair value    
Fair Value $ 21,779.8 $ 20,009.5
Cash and cash equivalents 303.0 372.0
Restricted cash 34.0 114.0
Interest receivable 176.0 142.0
Receivable for open trades 4.0 80.0
Other assets 81.0 99.0
Operating lease right-of-use asset 20.0 27.0
Total assets 22,398.0 20,843.0
LIABILITIES    
Debt 12,210.0 11,020.0
Base management fees payable 79.0 69.0
Income based fees payable 81.0 67.0
Capital gains incentive fees payable 35.0 161.0
Interest and facility fees payable 105.0 100.0
Payable to participants 34.0 114.0
Payable for open trades 22.0 216.0
Accounts payable and other liabilities 167.0 111.0
Secured borrowings 79.0 74.0
Operating lease liabilities 31.0 43.0
Total liabilities 12,843.0 11,975.0
Commitments and contingencies (Note 7)
STOCKHOLDERS’ EQUITY    
Common stock, par value $0.001 per share, 700 and 600 common shares authorized, respectively; 519 and 468 common shares issued and outstanding, respectively 1.0 0.0
Capital in excess of par value 9,556.0 8,553.0
Accumulated (overdistributed) undistributed earnings (2.0) 315.0
Total stockholders’ equity 9,555.0 8,868.0
Total liabilities and stockholders’ equity $ 22,398.0 $ 20,843.0
NET ASSETS PER SHARE (in dollars per share) $ 18.40 $ 18.96
Non-controlled/non-affiliate    
Investments at fair value    
Fair Value $ 17,296.0 $ 17,056.0
Non-controlled affiliate    
Investments at fair value    
Fair Value 364.4 373.1
Controlled affiliate    
Investments at fair value    
Fair Value $ 4,119.7 $ 2,580.4
v3.22.4
CONSOLIDATED STATEMENT OF OPERATIONS - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
INVESTMENT INCOME:      
PIK interest income $ 138.0 $ 164.0 $ 150.0
Total investment income 2,096.0 1,820.0 1,511.0
EXPENSES:      
Interest and credit facility fees 455.0 372.0 317.0
Base management fees 305.0 253.0 217.0
Income based fees 252.0 225.0 184.0
Capital gains incentive fees (101.0) 161.0 (58.0)
Administrative fees 11.0 15.0 13.0
Other general and administrative 27.0 24.0 25.0
Total expenses 949.0 1,050.0 698.0
NET INVESTMENT INCOME BEFORE INCOME TAXES 1,147.0 770.0 813.0
Income tax expense, including excise tax 55.0 29.0 19.0
NET INVESTMENT INCOME 1,092.0 741.0 794.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:      
Foreign currency and other transactions 57.0 25.0 (18.0)
Net realized gains (losses) 81.0 283.0 (166.0)
Net unrealized losses (gains) on investments, foreign currency and other transactions (12.0) (16.0) 0.0
Net unrealized gains (losses) (525.0) 586.0 (144.0)
Net realized and unrealized gains (losses) on investments, foreign currency and other transactions (444.0) 869.0 (310.0)
Realized loss on extinguishment of debt (48.0) (43.0) 0.0
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS $ 600.0 $ 1,567.0 $ 484.0
NET INCOME PER COMMON SHARE (see Note 10)      
Basic (in usd per share) $ 1.21 $ 3.51 $ 1.14
Diluted (in usd per share) $ 1.19 $ 3.51 $ 1.14
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING (see Note 10)      
Basic (in shares) 498 446 424
Diluted (in shares) 518 446 424
Non-controlled/non-affiliate      
INVESTMENT INCOME:      
Interest income (excluding payment-in-kind (“PIK”) interest income) $ 1,141.0 $ 911.0 $ 844.0
PIK interest income 121.0 133.0 116.0
Capital structuring service fees 133.0 285.0 128.0
Dividend income 194.0 122.0 74.0
Other income 43.0 40.0 50.0
Total investment income 1,632.0 1,491.0 1,212.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:      
Net realized gains (losses): 56.0 129.0 (159.0)
Net unrealized gains (losses): (585.0) 556.0 (284.0)
Non-controlled affiliate      
INVESTMENT INCOME:      
Interest income (excluding payment-in-kind (“PIK”) interest income) 8.0 7.0 9.0
PIK interest income 5.0 4.0 3.0
Capital structuring service fees 0.1 0.3 1.0
Dividend income 2.0 0.0 0.0
Other income 0.3 1.0 0.0
Total investment income 15.0 12.0 13.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:      
Net realized gains (losses): 6.1 67.5 16.0
Net unrealized gains (losses): 71.0 (16.0) (2.0)
Controlled affiliate      
INVESTMENT INCOME:      
Interest income (excluding payment-in-kind (“PIK”) interest income) 183.0 164.0 156.0
PIK interest income 12.0 28.0 31.0
Capital structuring service fees 20.0 21.0 20.0
Dividend income 228.2 100.5 75.0
Other income 6.0 4.0 4.0
Total investment income 449.0 317.0 286.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:      
Net realized gains (losses): (37.5) 61.3 (5.0)
Net unrealized gains (losses): $ 1.0 $ 62.0 $ 142.0
v3.22.4
CONSOLIDATED SCHEDULE OF INVESTMENTS - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Coupon [1]   9.50%
Amortized Cost $ 22,043.0 $ 19,810.0
Fair Value $ 21,779.8 $ 20,009.5
% of Net Assets 227.97% 225.65%
Software & Services    
Amortized Cost $ 4,950.2 $ 4,308.2
Fair Value $ 4,760.6 $ 4,378.1
% of Net Assets 49.83% 49.37%
Health Care Services    
Amortized Cost $ 2,525.9 $ 2,133.9
Fair Value $ 2,341.9 $ 2,157.1
% of Net Assets 24.51% 24.33%
Commercial & Professional Services    
Amortized Cost $ 2,116.4 $ 1,820.0
Fair Value $ 2,077.1 $ 1,833.4
% of Net Assets 21.74% 20.68%
Diversified Financials    
Amortized Cost $ 2,755.3 $ 1,363.8
Fair Value $ 2,890.6 $ 1,505.3
% of Net Assets 30.26% 16.98%
Insurance Services    
Amortized Cost $ 1,152.6 $ 1,144.0
Fair Value $ 1,132.8 $ 1,167.3
% of Net Assets 11.86% 13.16%
Investment Funds and Vehicles    
Amortized Cost $ 1,305.8 $ 1,020.0
Fair Value $ 1,296.8 $ 1,032.4
% of Net Assets 13.57% 11.64%
Consumer Durables & Apparel    
Amortized Cost $ 923.9 $ 918.7
Fair Value $ 814.3 $ 874.4
% of Net Assets 8.52% 9.86%
Capital Goods    
Amortized Cost $ 758.3 $ 945.3
Fair Value $ 783.9 $ 957.0
% of Net Assets 8.21% 10.79%
Automobiles & Components    
Amortized Cost $ 574.8 $ 933.1
Fair Value $ 562.3 $ 910.5
% of Net Assets 5.89% 10.27%
Power Generation    
Amortized Cost $ 942.8 $ 877.8
Fair Value $ 988.3 $ 898.9
% of Net Assets 10.34% 10.14%
Consumer Services    
Amortized Cost $ 859.0 $ 790.4
Fair Value $ 905.9 $ 780.3
% of Net Assets 9.48% 8.80%
Retailing and Distribution    
Amortized Cost $ 340.7 $ 563.1
Fair Value $ 365.5 $ 562.2
% of Net Assets 3.83% 6.34%
Media & Entertainment    
Amortized Cost $ 422.3 $ 434.7
Fair Value $ 452.1 $ 448.2
% of Net Assets 4.73% 5.05%
Food & Beverage    
Amortized Cost $ 420.4 $ 446.6
Fair Value $ 431.7 $ 445.3
% of Net Assets 4.52% 5.02%
Energy    
Amortized Cost $ 380.6 $ 363.4
Fair Value $ 425.3 $ 372.2
% of Net Assets 4.45% 4.20%
Materials    
Amortized Cost $ 287.3 $ 389.2
Fair Value $ 274.2 $ 392.4
% of Net Assets 2.87% 4.43%
Pharmaceuticals, Biotechnology & Life Sciences    
Amortized Cost $ 346.9 $ 394.2
Fair Value $ 367.5 $ 386.8
% of Net Assets 3.85% 4.36%
Food & Staples Retailing    
Amortized Cost $ 320.7 $ 269.4
Fair Value $ 346.5 $ 277.8
% of Net Assets 3.63% 3.13%
Technology Hardware & Equipment    
Amortized Cost $ 224.8 $ 203.9
Fair Value $ 218.2 $ 203.0
% of Net Assets 2.28% 2.29%
Household & Personal Products    
Amortized Cost $ 129.4 $ 137.3
Fair Value $ 97.3 $ 121.9
% of Net Assets 1.02% 1.37%
Transportation    
Amortized Cost $ 89.5 $ 148.3
Fair Value $ 95.4 $ 149.6
% of Net Assets 1.00% 1.69%
Education    
Amortized Cost $ 151.3 $ 158.7
Fair Value $ 94.9 $ 113.0
% of Net Assets 0.99% 1.27%
Telecommunication Services    
Amortized Cost $ 64.1 $ 46.0
Fair Value $ 56.7 $ 42.4
% of Net Assets 0.59% 0.48%
AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC    
Amortized Cost $ 238.5 $ 91.5
Fair Value 230.9 91.5
Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua    
Amortized Cost 9.8 24.8
Fair Value 13.7 28.3
APG Intermediate Holdings Corporation and APG Holdings, LLC    
Amortized Cost 23.1 23.3
Fair Value 21.8 25.0
Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc.    
Amortized Cost 44.4 48.0
Fair Value 41.3 48.0
Apptio, Inc.    
Amortized Cost 17.6 63.9
Fair Value 17.6 63.9
Banyan Software Holdings, LLC and Banyan Software, LP    
Amortized Cost 26.3 19.4
Fair Value 27.6 19.4
Borrower R365 Holdings LLC    
Amortized Cost 17.1  
Fair Value 17.3  
Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc.    
Amortized Cost 124.7 110.9 [2]
Fair Value 107.6 112.0 [2]
Community Brands ParentCo, LLC    
Amortized Cost 15.6  
Fair Value 16.8  
Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P.    
Amortized Cost 120.6 80.6
Fair Value 117.4 81.1
CoreLogic, Inc. and T-VIII Celestial Co-Invest LP    
Amortized Cost 215.4 215.4
Fair Value 178.0 233.6
Cority Software Inc., Cority Software (USA) Inc., and Cority Parent, Inc.    
Amortized Cost 17.3  
Fair Value 17.5  
Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc.    
Amortized Cost 304.8 270.1
Fair Value 268.0 267.7
Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P.    
Amortized Cost 177.6 151.4
Fair Value 158.7 151.5
Denali Holdco LLC and Denali Apexco LP    
Amortized Cost 2.7 39.8
Fair Value 2.6 39.4
Diligent Corporation and Diligent Preferred Issuer, Inc.    
Amortized Cost 53.2 68.1
Fair Value 51.9 69.1
Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc.    
Amortized Cost 67.4 62.0
Fair Value 66.4 62.9
Elemica Parent, Inc. & EZ Elemica Holdings, Inc.    
Amortized Cost 75.7 89.3
Fair Value 74.4 90.2
EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P.    
Amortized Cost 181.1 181.1
Fair Value 187.8 185.9
EpiServer Inc. and Episerver Sweden Holdings AB    
Amortized Cost 6.1 10.7
Fair Value 5.7 10.7
eResearch Technology, Inc. and Astorg VII Co-Invest ERT    
Amortized Cost 51.2 56.1
Fair Value 46.2 58.4
ESHA Research, LLC and RMCF VI CIV XLVIII, L.P.    
Amortized Cost 12.8  
Fair Value 12.7  
ExtraHop Networks, Inc.    
Amortized Cost   17.7
Fair Value   17.4
FM:Systems Group, LLC    
Amortized Cost 0.2 6.1
Fair Value 0.2 6.1
Forescout Technologies, Inc.    
Amortized Cost 36.1  
Fair Value 36.4  
Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC    
Amortized Cost   21.2
Fair Value   29.6
Genesis Acquisition Co. and Genesis Ultimate Holding Co.    
Amortized Cost 63.6 72.6
Fair Value 63.0 71.0
GI Ranger Intermediate LLC    
Amortized Cost 12.4  
Fair Value 12.1  
GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC    
Amortized Cost 101.5  
Fair Value 98.0  
Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP    
Amortized Cost 178.1 206.4
Fair Value 152.9 203.8
IV Rollover Holdings, LLC    
Amortized Cost 2.0 2.1
Fair Value 2.1 2.3
Kaseya Inc. and Knockout Intermediate Holdings I Inc    
Amortized Cost 208.2  
Fair Value 202.0  
Majesco and Magic Topco, L.P.    
Amortized Cost 33.4 45.0
Fair Value 33.9 46.2
Ministry Brands Holdings, LLC and RCP MB Investments B, L.P.    
Amortized Cost 46.1 82.3
Fair Value 43.5 81.6
MMIT Holdings, LLC    
Amortized Cost   32.5
Fair Value   32.2
Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC    
Amortized Cost 29.6  
Fair Value 29.1  
MRI Software LLC    
Amortized Cost 64.5 56.0
Fair Value 62.4 56.0
PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC    
Amortized Cost 177.7 169.4
Fair Value 174.3 170.4
Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC    
Amortized Cost 19.0 35.2
Fair Value 28.3 42.5
ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P.    
Amortized Cost 7.1 5.5
Fair Value 6.9 5.5
Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc.    
Amortized Cost 10.3 7.5
Fair Value 17.3 17.0
Project Essential Bidco, Inc. and Project Essential Super Parent, Inc.    
Amortized Cost 68.1 65.1
Fair Value 64.9 64.3
Project Potter Buyer, LLC and Project Potter Parent, L.P.    
Amortized Cost 77.6 79.0
Fair Value 87.0 79.9
Proofpoint, Inc.    
Amortized Cost 35.3 35.4
Fair Value 35.5 35.6
QF Holdings, Inc.    
Amortized Cost 18.6 23.6
Fair Value 18.6 23.6
Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC    
Amortized Cost 12.0 32.0
Fair Value 14.1 33.0
Regent Education, Inc.    
Amortized Cost 0.0 0.0
Fair Value 0.0 0.0
Revalize, Inc.    
Amortized Cost 0.8  
Fair Value 0.6  
RMS Holdco II, LLC & RMS Group Holdings, Inc.    
Amortized Cost 4.9 28.1
Fair Value 5.8 27.9
Smarsh Inc. and Skywalker TopCo, LLC    
Amortized Cost 18.2  
Fair Value 20.5  
Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp    
Amortized Cost 12.8  
Fair Value 13.0  
Storable, Inc. and EQT IX Co-Investment (E) SCSP    
Amortized Cost 59.3 49.0
Fair Value 58.0 49.6
Sundance Group Holdings, Inc.    
Amortized Cost 20.6 16.0
Fair Value 20.7 16.2
Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C.    
Amortized Cost 41.2  
Fair Value 42.3  
TCP Hawker Intermediate LLC    
Amortized Cost 41.0 45.4
Fair Value 41.0 45.4
The Ultimate Software Group, Inc. and H&F Unite Partners, L.P.    
Amortized Cost   12.6
Fair Value   15.1
TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P.,    
Amortized Cost 336.5  
Fair Value 308.3  
WebPT, Inc.    
Amortized Cost 48.4  
Fair Value 48.4  
BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC    
Amortized Cost 9.9 8.9
Fair Value 9.0 8.8
eCapital Finance Corp.    
Amortized Cost 141.5 61.4
Fair Value 140.0 61.4
EP Wealth Advisors, LLC    
Amortized Cost 6.2 0.7
Fair Value 6.2 0.7
Ivy Hill Asset Management, L.P.    
Amortized Cost 2,047.5 781.0
Fair Value 2,201.1 935.8
LS DE LLC and LM LSQ Investors LLC    
Amortized Cost 43.3 43.3
Fair Value 42.6 43.5
Monica Holdco (US) Inc.    
Amortized Cost 5.0 2.6
Fair Value 4.8 2.6
Priority Holdings, LLC and Priority Technology Holdings, Inc.    
Amortized Cost 73.9 104.2
Fair Value 76.7 107.5
Rialto Management Group, LLC    
Amortized Cost 0.5 17.9
Fair Value 0.5 17.9
The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC    
Amortized Cost 13.8  
Fair Value 11.2  
The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP    
Amortized Cost 39.5 39.6
Fair Value 39.8 39.7
Absolute Dental Group LLC and Absolute Dental Equity, LLC    
Amortized Cost 60.0 58.2
Fair Value 70.2 63.9
ADG, LLC and RC IV GEDC Investor LLC    
Amortized Cost 122.9 110.1
Fair Value 117.4 115.5
AHR Funding Holdings, Inc. And AHR Parent Holdings, L.P.    
Amortized Cost 47.2  
Fair Value 46.1  
AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP    
Amortized Cost 228.6  
Fair Value 208.0  
CCS-CMGC Holdings, Inc.    
Amortized Cost 33.5 33.8
Fair Value 26.2 33.3
Center for Autism and Related Disorders, LLC    
Amortized Cost 19.0  
Fair Value 8.0  
Comprehensive EyeCare Partners, LLC    
Amortized Cost 1.1 3.6
Fair Value 1.0 3.6
Convey Health Solutions, Inc.    
Amortized Cost 2.9  
Fair Value 2.8  
Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC    
Amortized Cost 26.6  
Fair Value 26.7  
CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC    
Amortized Cost 104.7 99.0
Fair Value 111.9 104.9
GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC    
Amortized Cost 129.7 128.0
Fair Value 139.6 146.2
Global Medical Response, Inc. and GMR Buyer Corp.    
Amortized Cost 131.5 96.4
Fair Value 99.8 97.5
HealthEdge Software, Inc.    
Amortized Cost 87.2 79.2
Fair Value 87.2 79.2
Honor Technology, Inc.    
Amortized Cost 2.5 2.5
Fair Value 2.3 2.6
JDC Healthcare Management, LLC    
Amortized Cost 35.1 35.5
Fair Value 24.7 29.6
Lifescan Global Corporation    
Amortized Cost 13.9  
Fair Value 10.5  
Napa Management Services Corporation and ASP NAPA Holdings, LLC    
Amortized Cost 3.0 75.7
Fair Value 4.1 77.3
NMN Holdings III Corp. and NMN Holdings LP    
Amortized Cost 5.3 3.0
Fair Value 4.1 2.8
Olympia Acquisition, Inc. and Olympia TopCo, L.P.    
Amortized Cost 70.7 63.1
Fair Value 44.7 44.1
OMH-HealthEdge Holdings, LLC    
Amortized Cost 41.2 41.5
Fair Value 41.2 41.5
Pathway Vet Alliance LLC and Jedi Group Holdings LLC    
Amortized Cost 82.3 82.3
Fair Value 71.1 84.2
Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP    
Amortized Cost 85.1 97.1
Fair Value 85.3 105.2
RTI Surgical, Inc. and Pioneer Surgical Technology, Inc.    
Amortized Cost 32.3 33.5
Fair Value 32.0 33.5
SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC    
Amortized Cost 15.1 16.3
Fair Value 11.5 10.6
SM Wellness Holdings, Inc. and SM Holdco, Inc.    
Amortized Cost 8.0 8.0
Fair Value 9.4 9.6
SOC Telemed, Inc. and PSC Spark Holdings, LP    
Amortized Cost 89.0  
Fair Value 86.6  
Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc.    
Amortized Cost 252.6 214.1
Fair Value 201.9 214.1
Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC    
Amortized Cost 13.6 15.8
Fair Value 14.1 16.3
U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc.    
Amortized Cost 160.7 160.7
Fair Value 156.0 159.2
VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P.    
Amortized Cost 16.8 13.9
Fair Value 17.7 13.9
WSHP FC Acquisition LLC    
Amortized Cost 87.6 75.5
Fair Value 85.5 75.5
Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC    
Amortized Cost 8.4 8.4
Fair Value 10.7 7.9
Aero Operating LLC    
Amortized Cost 37.3 37.8
Fair Value 36.2 37.8
AI Fire Buyer, Inc. and AI Fire Parent LLC    
Amortized Cost 97.8  
Fair Value 98.8  
Applied Technical Services, LLC    
Amortized Cost 1.7  
Fair Value 1.9  
Argenbright Holdings V, LLC and Amberstone Security Group Limited    
Amortized Cost 26.8  
Fair Value 26.5  
Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP    
Amortized Cost 79.1 81.5
Fair Value 88.6 85.3
DTI Holdco, Inc. and OPE DTI Holdings, Inc.    
Amortized Cost 7.5 12.6
Fair Value 6.3 9.3
Elevation Services Parent Holdings, LLC    
Amortized Cost 20.7  
Fair Value 20.4  
HAI Acquisition Corporation and Aloha Topco, LLC    
Amortized Cost 70.1 62.8
Fair Value 71.5 63.4
HH-Stella, Inc. and Bedrock Parent Holdings, LP    
Amortized Cost 11.1 5.6
Fair Value 10.6 6.0
ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, LLC    
Amortized Cost 13.5  
Fair Value 16.0  
Kellermeyer Bergensons Services, LLC    
Amortized Cost 56.7 81.6
Fair Value 51.2 81.9
KPS Global LLC and Cool Group LLC    
Amortized Cost 17.0 17.1
Fair Value 21.1 16.5
Laboratories Bidco LLC and Laboratories Topco LLC    
Amortized Cost 58.7 61.3
Fair Value 55.9 62.0
LJP Purchaser, Inc. and LJP Topco, LP    
Amortized Cost 13.7  
Fair Value 13.7  
Marmic Purchaser, LLC and Marmic Topco, L.P.    
Amortized Cost 3.2 36.5
Fair Value 3.5 36.8
Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc.    
Amortized Cost 165.7 159.9
Fair Value 168.5 156.9
NAS, LLC and Nationwide Marketing Group, LLC    
Amortized Cost 10.5 9.4
Fair Value 10.5 9.4
Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1    
Amortized Cost 128.8 128.8
Fair Value 128.1 127.6
North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC    
Amortized Cost 23.8 21.0
Fair Value 25.8 21.3
North Haven Stack Buyer, LLC    
Amortized Cost 7.6  
Fair Value 7.5  
Petroleum Service Group LLC    
Amortized Cost 48.6 45.4
Fair Value 48.6 45.4
Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC    
Amortized Cost 72.9 101.7
Fair Value 71.5 100.7
PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC)    
Amortized Cost 26.8 25.1
Fair Value 27.7 25.1
RE Community Holdings GP, LLC and RE Community Holdings, LP    
Amortized Cost 0.0 0.0
Fair Value 0.0 0.0
Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P.    
Amortized Cost 5.4 40.6
Fair Value 5.3 40.1
Rodeo AcquisitionCo LLC    
Amortized Cost 18.2 17.5
Fair Value 17.3 17.2
Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P.    
Amortized Cost 11.9 15.3
Fair Value 15.5 15.3
SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP    
Amortized Cost 23.2 23.6
Fair Value 14.3 21.1
Stealth Holding LLC and UCIT Online Security Inc.    
Amortized Cost 59.0 51.3
Fair Value 57.8 51.3
The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P.    
Amortized Cost 226.5  
Fair Value 226.7  
Visual Edge Technology, Inc.    
Amortized Cost 124.0 122.5
Fair Value 78.1 110.6
VRC Companies, LLC    
Amortized Cost 5.2  
Fair Value 4.7  
XIFIN, Inc. and ACP Charger Co-Invest LLC    
Amortized Cost 40.0 59.4
Fair Value 42.2 61.5
Senior Direct Lending Program, LLC    
Amortized Cost 1,274.1 987.3
Fair Value 1,248.6 987.3
AQ Sunshine, Inc.    
Amortized Cost 25.5 42.4
Fair Value 25.1 42.4
Ardonagh Midco 2 plc and Ardonagh Midco 3 plc    
Amortized Cost 242.8 199.5
Fair Value 239.3 204.1
Foundation Risk Partners, Corp.    
Amortized Cost 152.6  
Fair Value 151.1  
Galway Borrower LLC    
Amortized Cost 34.2 59.1
Fair Value 32.8 58.5
High Street Buyer, Inc. and High Street Holdco LLC    
Amortized Cost 181.5 171.7
Fair Value 177.7 189.0
K2 Insurance Services, LLC and K2 Holdco LP    
Amortized Cost 53.7 52.6
Fair Value 55.2 53.4
People Corporation    
Amortized Cost 67.4 62.3
Fair Value 62.2 62.4
SageSure Holdings, LLC & Insight Catastrophe Group, LLC    
Amortized Cost 35.5  
Fair Value 35.8  
THG Acquisition, LLC    
Amortized Cost 32.0 38.8
Fair Value 31.5 38.8
Ferrellgas, L.P. and Ferrelgas Partners, L.P.    
Amortized Cost 74.4  
Fair Value 74.9  
Heelstone Renewable Energy, LLC    
Amortized Cost 160.2 62.5
Fair Value 209.6 69.4
Opal Fuels LLC and Opal Fuels Inc.    
Amortized Cost 48.1  
Fair Value 50.8  
PosiGen, Inc.    
Amortized Cost 0.0 0.0
Fair Value 0.0 0.0
Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC    
Amortized Cost 148.0 142.6
Fair Value 136.2 142.6
Sunrun Luna Holdco 2021, LLC    
Amortized Cost 40.7  
Fair Value 40.3  
Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC    
Amortized Cost 72.8 69.7
Fair Value 67.6 69.7
American Residential Services L.L.C. and Aragorn Parent Holdings LP    
Amortized Cost 60.5 59.2
Fair Value 63.8 60.1
ATI Restoration, LLC    
Amortized Cost 45.9 43.9
Fair Value 45.9 43.9
Belfor Holdings, Inc.    
Amortized Cost 13.6  
Fair Value 13.5  
Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L.    
Amortized Cost 158.0 155.6
Fair Value 162.6 144.4
CMG HoldCo, LLC and CMG Buyer Holdings, Inc.    
Amortized Cost 28.9  
Fair Value 30.1  
Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC    
Amortized Cost 174.4 174.0
Fair Value 190.4 187.5
KeyStone Sub-debt HoldCo, LLC    
Amortized Cost 69.2 62.0
Fair Value 74.9 63.9
LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC    
Amortized Cost 36.8 9.7
Fair Value 50.1 9.6
OTG Management, LLC    
Amortized Cost 28.4 28.4
Fair Value 13.1 15.8
Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC    
Amortized Cost 11.1  
Fair Value 12.4  
Pyramid Management Advisors, LLC and Pyramid Investors, LLC    
Amortized Cost 27.7 35.2
Fair Value 27.6 31.9
Redwood Services, LLC and Redwood Services Holdco, LLC    
Amortized Cost 21.6 19.2
Fair Value 35.0 25.1
SV-Burton Holdings, LLC & LBC Breeze Holdings LLC    
Amortized Cost 5.6 15.3
Fair Value 6.1 15.2
Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P.    
Amortized Cost 6.0 5.4
Fair Value 6.8 3.6
The Arcticom Group, LLC and AMCP Mechanical Holdings, LP    
Amortized Cost 17.5 54.1
Fair Value 20.2 53.6
YE Brands Holdings, LLC    
Amortized Cost 9.8  
Fair Value 9.8  
Arrowhead Holdco Company and Arrowhead GS Holdings, Inc.    
Amortized Cost 5.2 36.2
Fair Value 6.5 37.5
BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC    
Amortized Cost 3.7  
Fair Value 3.7  
Cadence Aerospace, LLC    
Amortized Cost 80.4 76.3
Fair Value 78.8 74.3
DFS Holding Company, Inc.    
Amortized Cost 175.7 176.7
Fair Value 175.7 167.8
Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP    
Amortized Cost 33.0 35.5
Fair Value 32.2 34.0
EPS NASS Parent, Inc.    
Amortized Cost 1.0 31.4
Fair Value 1.0 31.4
ESCP PPG Holdings, LLC    
Amortized Cost 5.8  
Fair Value 3.1  
Harvey Tool Company, LLC    
Amortized Cost   28.6
Fair Value   28.3
Imaging Business Machines, L.L.C. and Scanner Holdings Corporation    
Amortized Cost 18.1 17.9
Fair Value 47.8 53.0
Kene Acquisition, Inc. and Kene Holdings, L.P.    
Amortized Cost 45.1 45.6
Fair Value 46.8 46.4
MB Aerospace Holdings II Corp.    
Amortized Cost 105.4 103.1
Fair Value 98.1 93.8
NCWS Intermediate, Inc. and NCWS Holdings LP    
Amortized Cost 110.1 201.4
Fair Value 113.8 205.2
Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP.    
Amortized Cost 29.1 59.2
Fair Value 41.8 58.8
Radius Aerospace, Inc. and Radius Aerospace Europe Limited    
Amortized Cost 0.8  
Fair Value 0.8  
Centric Brands LLC and Centric Brands GP LLC    
Amortized Cost 83.2 73.0
Fair Value 78.5 81.1
DRS Holdings III, Inc. and DRS Holdings I, Inc.    
Amortized Cost 62.3 85.0
Fair Value 58.8 87.8
Implus Footcare, LLC    
Amortized Cost 123.1 123.7
Fair Value 110.6 113.9
Johnnie-O Inc. and Johnnie-O Holdings Inc.    
Amortized Cost 23.6  
Fair Value 25.6  
Lew's Intermediate Holdings, LLC    
Amortized Cost   2.8
Fair Value   2.8
Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC    
Amortized Cost 49.8 102.0
Fair Value 49.8 102.0
Reef Lifestyle, LLC    
Amortized Cost 61.4 38.8
Fair Value 59.6 38.8
S Toys Holdings LLC (fka The Step2 Company, LLC)    
Amortized Cost 0.0 0.0
Fair Value 0.0 0.2
Shock Doctor, Inc. and Shock Doctor Holdings, LLC    
Amortized Cost 11.7 31.9
Fair Value 6.0 23.1
SVP-Singer Holdings Inc. and SVP-Singer Holdings LP    
Amortized Cost 69.6  
Fair Value 40.4  
Totes Isotoner Corporation and Totes Ultimate Holdco, Inc.    
Amortized Cost 9.8 9.8
Fair Value 3.7 3.9
Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP    
Amortized Cost 159.2 145.3
Fair Value 157.6 138.9
Automotive Keys Group, LLC and Automotive Keys Investor, LLC    
Amortized Cost 11.5 14.5
Fair Value 10.6 15.1
Continental Acquisition Holdings, Inc.    
Amortized Cost 41.6 69.7
Fair Value 38.2 69.7
Eckler Industries, Inc. and Eckler Purchaser LLC    
Amortized Cost   48.4
Fair Value   23.1
Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC    
Amortized Cost 88.6 82.2
Fair Value 79.6 75.4
Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C.    
Amortized Cost   217.6
Fair Value   217.9
Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP    
Amortized Cost 101.6 112.0
Fair Value 109.7 113.9
McLaren Group Limited    
Amortized Cost 30.8 27.8
Fair Value 29.8 33.6
SK SPV IV, LLC    
Amortized Cost   1.2
Fair Value   0.0
Sun Acquirer Corp. and Sun TopCo, LP    
Amortized Cost 65.3 99.3
Fair Value 64.9 100.1
American Seafoods Group LLC and American Seafoods Partners LLC    
Amortized Cost 7.5 7.5
Fair Value 28.3 19.1
Bragg Live Food Products, LLC and SPC Investment Co., L.P.    
Amortized Cost 40.4 52.6
Fair Value 39.1 47.8
CHG PPC Parent LLC & PPC CHG Blocker LLC    
Amortized Cost 97.6 97.6
Fair Value 92.8 96.7
Florida Food Products, LLC    
Amortized Cost 72.3 76.1
Fair Value 70.9 75.4
GF Parent LLC    
Amortized Cost 3.0  
Fair Value 0.0  
Gotham Greens Holdings, PBC    
Amortized Cost 31.9  
Fair Value 31.6  
KC Culinarte Intermediate, LLC    
Amortized Cost   64.6
Fair Value   59.6
RB Holdings InterCo, LLC    
Amortized Cost 13.3  
Fair Value 12.9  
Teasdale Foods, Inc. and Familia Group Holdings Inc.    
Amortized Cost 75.9 78.3
Fair Value 65.3 73.6
Triton Water Holdings, Inc.    
Amortized Cost 1.1 1.1
Fair Value 1.0 1.1
Watermill Express, LLC and Watermill Express Holdings, LLC    
Amortized Cost 23.6 22.4
Fair Value 23.6 22.1
Abzena Holdings, Inc. and Astro Group Holdings Ltd.    
Amortized Cost 66.7 46.7
Fair Value 66.3 47.0
Alcami Corporation and ACM Holdings I, LLC    
Amortized Cost 29.0 141.2
Fair Value 28.5 116.5
Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc.    
Amortized Cost 105.7 93.0
Fair Value 105.1 92.7
Covaris Intermediate 3, LLC & Covaris Parent, LLC    
Amortized Cost 6.4  
Fair Value 7.1  
NMC Skincare Intermediate Holdings II, LLC    
Amortized Cost 36.7 38.5
Fair Value 35.2 38.1
North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P.    
Amortized Cost 66.5 65.6
Fair Value 89.1 83.5
TerSera Therapeutics LLC    
Amortized Cost 8.8 8.9
Fair Value 8.8 9.0
Verista, Inc.    
Amortized Cost 1.5  
Fair Value 1.9  
Atlas Intermediate III, L.L.C.    
Amortized Cost 0.7 2.3
Fair Value 0.7 2.3
Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc.    
Amortized Cost 16.6 16.8
Fair Value 17.2 17.2
GPM Investments, LLC and ARKO Corp.    
Amortized Cost 21.4 21.4
Fair Value 28.0 20.2
Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC    
Amortized Cost 17.6 68.2
Fair Value 21.6 71.0
McKenzie Creative Brands, LLC    
Amortized Cost 91.9 90.0
Fair Value 91.9 90.0
Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP    
Amortized Cost   175.9
Fair Value   175.1
North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC    
Amortized Cost 30.3 27.3
Fair Value 25.3 26.2
Reddy Ice LLC    
Amortized Cost 66.4 79.2
Fair Value 65.1 79.2
US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P.    
Amortized Cost 27.2 40.9
Fair Value 25.8 40.5
Aventine Intermediate LLC & Aventine Holdings II LLC    
Amortized Cost 48.8 42.2
Fair Value 45.5 41.8
Production Resource Group, L.L.C. and PRG III, LLC    
Amortized Cost 67.9 60.5
Fair Value 97.3 56.3
Professional Fighters League, LLC and PFL MMA, Inc.    
Amortized Cost 18.7  
Fair Value 18.8  
Storm Investment S.a.r.l.    
Amortized Cost 88.0 88.0
Fair Value 86.0 83.8
The Teaching Company Holdings, Inc.    
Amortized Cost 1.1 1.1
Fair Value 2.5 4.1
GNZ Energy Bidco Limited and Galileo Co-investment Trust I    
Amortized Cost 38.8  
Fair Value 39.5  
Murchison Oil and Gas, LLC and Murchison Holdings, LLC    
Amortized Cost 116.5 65.9
Fair Value 121.4 68.4
VPROP Operating, LLC and V SandCo, LLC    
Amortized Cost 75.5 70.4
Fair Value 116.1 77.5
Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P.    
Amortized Cost 61.0 57.8
Fair Value 65.4 57.6
DecoPac, Inc. and KCAKE Holdings Inc.    
Amortized Cost 164.8 160.5
Fair Value 161.5 160.9
FS Squared Holding Corp. and FS Squared, LLC    
Amortized Cost 11.2 11.2
Fair Value 31.3 19.3
SFE Intermediate Holdco LLC    
Amortized Cost 24.9 16.4
Fair Value 24.4 16.4
ZB Holdco LLC & ZB Parent LLC    
Amortized Cost 4.8  
Fair Value 5.6  
ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP    
Amortized Cost 19.7 67.1
Fair Value 19.3 66.6
H-Food Holdings, LLC and Matterhorn Parent, LLC    
Amortized Cost 105.8 153.4
Fair Value 92.7 154.8
Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V.    
Amortized Cost 28.5 51.1
Fair Value 28.4 51.9
Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C.    
Amortized Cost 34.0 29.1
Fair Value 39.0 30.2
Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC    
Amortized Cost 77.1 55.6
Fair Value 69.5 55.9
Precision Concepts International LLC and Precision Concepts Canada Corporation    
Amortized Cost 21.1  
Fair Value 21.1  
Chariot Buyer LLC    
Amortized Cost 137.9 137.1
Fair Value 129.5 135.7
ITI Holdings, Inc.    
Amortized Cost 39.9  
Fair Value 39.5  
Micromeritics Instrument Corp.    
Amortized Cost   32.0
Fair Value   32.0
Wildcat BuyerCo, Inc. and Wildcat Parent, LP    
Amortized Cost 21.0 29.5
Fair Value 24.1 30.5
Commercial Trailer Leasing, Inc.    
Amortized Cost 53.2 112.7
Fair Value 52.8 112.7
Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc.    
Amortized Cost 36.3 35.6
Fair Value 42.6 36.9
Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc.    
Amortized Cost 38.4 36.7
Fair Value 39.2 36.3
National College of Business and Technology Inc. & Leeds IV Advisors, Inc.    
Amortized Cost 103.7  
Fair Value 46.5  
CDI Holdings III Corp. and CDI Holdings I Corp.    
Amortized Cost 9.9 9.9
Fair Value 8.0 9.9
Premier Specialties, Inc. and RMCF V CIV XLIV, L.P.    
Amortized Cost 34.3 32.2
Fair Value 30.6 31.4
Rug Doctor, LLC and RD Holdco Inc.    
Amortized Cost   36.0
Fair Value   21.0
Walnut Parent, Inc.    
Amortized Cost 14.8 34.8
Fair Value 14.3 34.8
Aventiv Technologies, LLC and Securus Technologies Holdings, Inc.    
Amortized Cost 9.0  
Fair Value 7.0  
Emergency Communications Network, LLC    
Amortized Cost 55.1  
Fair Value 49.7  
Cority Software Inc., IQS, Inc. and Cority Parent, Inc.    
Amortized Cost   12.0
Fair Value   12.4
Insightful Science    
Amortized Cost   121.9
Fair Value   121.2
Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands)    
Amortized Cost   211.0
Fair Value   213.4
Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC    
Amortized Cost   18.1
Fair Value   18.4
Bearcat Buyer, Inc. and Bearcat Parent, Inc.    
Amortized Cost   86.4
Fair Value   93.0
MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc.    
Amortized Cost   110.2
Fair Value   110.8
NueHealth Performance, LLC    
Amortized Cost   18.7
Fair Value   18.7
Teligent, Inc    
Amortized Cost   77.0
Fair Value   38.8
Cozzini Bros., Inc. and BH-Sharp Holdings LP    
Amortized Cost   15.4
Fair Value   12.8
IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P.    
Amortized Cost   202.2
Fair Value   221.2
Lakers Buyer, Inc. and Lakers Parent LLC    
Amortized Cost   99.6
Fair Value   101.1
Tyden Group Holding Corp.    
Amortized Cost   2.4
Fair Value   4.3
VLS Recovery Services, LLC    
Amortized Cost   15.3
Fair Value   15.3
Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC)    
Amortized Cost   0.3
Fair Value   0.3
TA/WEG Holdings, LLC    
Amortized Cost 0.4 9.4
Fair Value 0.4 9.4
NSM Insurance Group, LLC    
Amortized Cost   13.3
Fair Value   13.3
RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc.    
Amortized Cost   33.4
Fair Value   33.4
SCM Insurance Services Inc.    
Amortized Cost   81.1
Fair Value   80.4
Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc.    
Amortized Cost   82.2
Fair Value   81.5
Navisun LLC and Navisun Holdings LLC    
Amortized Cost   130.8
Fair Value   143.7
SVP-Singer Holdings Inc. and SVP-Singer Holdings LP    
Amortized Cost   69.8
Fair Value   66.8
Garden Fresh Restaurant Corp. and GFRC Holdings LLC    
Amortized Cost   0.0
Fair Value   0.0
Jim N Nicks Management, LLC    
Amortized Cost   17.5
Fair Value   17.5
Movati Athletic (Group) Inc.    
Amortized Cost   5.4
Fair Value   5.0
MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc.    
Amortized Cost   15.7
Fair Value   15.8
Berner Food & Beverage, LLC    
Amortized Cost 0.5 0.7
Fair Value 0.5 0.7
Gehl Foods, LLC and GF Parent LLC    
Amortized Cost   3.0
Fair Value   0.0
IntraPac International LLC and IntraPac Canada Corporation    
Amortized Cost   31.8
Fair Value   31.8
Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc.    
Amortized Cost   107.8
Fair Value   $ 40.4
Datix Bidco Limited    
Amortized Cost 4.9  
Fair Value 4.9  
Dye & Durham Corporation    
Amortized Cost 47.2  
Fair Value 45.0  
ION Holding Corp.    
Amortized Cost 23.9  
Fair Value 23.7  
Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp    
Amortized Cost 176.5  
Fair Value 172.2  
Pluralsight, Inc. [Member]    
Amortized Cost 106.4  
Fair Value 104.1  
UKG Inc. and H&F Unite Partners, L.P.    
Amortized Cost 23.2  
Fair Value 25.0  
WorkWave Intermediate II, LLC    
Amortized Cost 84.7  
Fair Value 84.7  
ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP    
Amortized Cost 72.7  
Fair Value 71.1  
Hanger, Inc.    
Amortized Cost 164.8  
Fair Value 160.0  
Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P.    
Amortized Cost 449.1  
Fair Value 437.2  
Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc.    
Amortized Cost 16.2  
Fair Value 16.2  
Inszone Mid, LLC and INSZ Holdings, LLC    
Amortized Cost 19.3  
Fair Value 18.8  
CST Holding Company    
Amortized Cost 12.0  
Fair Value 11.6  
Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P.    
Amortized Cost 20.9  
Fair Value 20.6  
Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P.    
Amortized Cost 18.9  
Fair Value 18.5  
Qnnect, LLC and Connector TopCo, LP    
Amortized Cost 20.5  
Fair Value 20.2  
Eagle Football Holdings BidCo Limited    
Amortized Cost 67.2  
Fair Value 64.4  
KNPC HoldCo, LLC    
Amortized Cost 6.9  
Fair Value 6.8  
Continental Cafe, LLC and Infinity Ovation Yacht Charters, LLC    
Amortized Cost 0.8  
Fair Value 0.8  
LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P.    
Amortized Cost 45.4  
Fair Value 44.3  
LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P.    
Amortized Cost 21.8  
Fair Value 21.4  
RD Holdco Inc.    
Amortized Cost 36.0  
Fair Value $ 10.2  
Investment, Identifier [Axis]: 2U, Inc., First lien senior secured loan    
Coupon 10.16% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 14.6 [4],[5],[6] $ 55.0 [2],[7],[8]
Amortized Cost 14.4 [4],[5],[6] 54.1 [2],[7],[8]
Fair Value 14.3 [4],[5],[6] 55.0 [2],[7],[8]
Investment, Identifier [Axis]: ACAS Equity Holdings Corporation    
Fair Value $ 0.4 $ 0.4
Investment, Identifier [Axis]: ACAS Equity Holdings Corporation, Common stock    
Shares 589 589
Amortized Cost $ 0.4 [6] $ 0.4 [8]
Fair Value 0.4 [6] 0.4 [8]
Investment, Identifier [Axis]: ADF Capital, Inc., ADF Restaurant Group, LLC, and ARG Restaurant Holdings, Inc.    
Fair Value 0.0 0.0
Investment, Identifier [Axis]: ADF Capital, Inc., ADF Restaurant Group, LLC, and ARG Restaurant Holdings, Inc., First lien senior secured loan    
Principal 8.3 [5],[9] 111.4 [2],[10]
Amortized Cost 0.0 [5],[9] 0.0 [2],[10]
Fair Value $ 0.0 [5],[9] $ 0.0 [2],[10]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 1    
Coupon 9.19% [3] 7.50% [1]
Coupon, PIK 0.52% [3] 0.50% [1]
Spread 4.75% [3] 4.25% [1]
Principal $ 9.8 [4],[5] $ 9.6 [2],[7]
Amortized Cost 9.8 [4],[5] 9.6 [2],[7]
Fair Value $ 9.3 [4],[5] $ 9.5 [2],[7]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 2    
Coupon 11.25% [3] 5.75% [1]
Coupon, PIK 0.52% [3] 0.50% [1]
Spread 3.75% [3] 4.75% [1]
Principal $ 4.3 [4],[5] $ 2.3 [2],[7]
Amortized Cost 4.3 [4],[5] 2.3 [2],[7]
Fair Value $ 4.1 [4],[5] $ 2.3 [2],[7]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, Membership units    
Shares 3,000,000 3,000,000
Amortized Cost $ 3.0 $ 3.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, Second lien senior secured loan    
Coupon, PIK 7.19% [3] 11.00% [1]
Spread 2.80% [3] 10.00% [1]
Principal $ 130.0 [5] $ 115.3 [2],[7]
Amortized Cost 105.8 [5] 95.2 [2],[7]
Fair Value $ 104.0 [5] $ 103.7 [2],[7]
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Preferred units    
Coupon, PIK [3] 8.00%  
Shares 9,900  
Amortized Cost [5] $ 10.2  
Fair Value [5] $ 10.2  
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Class B common units    
Shares 100,000  
Amortized Cost [5] $ 0.1  
Fair Value [5] $ 0.1  
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Series A preferred shares    
Coupon, PIK [3] 12.75%  
Shares 35,000  
Amortized Cost [5] $ 36.9  
Fair Value [5] $ 35.8  
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., First lien senior secured loan    
Coupon 7.97% [3] 4.50% [1]
Spread 3.75% [3] 4.00% [1]
Principal $ 1.0 [4],[5],[11] $ 0.9 [2],[7],[12]
Amortized Cost 1.0 [4],[5],[11] 0.9 [2],[7],[12]
Fair Value $ 0.9 [4],[5],[11] 0.9 [2],[7],[12]
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Common units    
Shares 46,990  
Amortized Cost [5] $ 4.7  
Fair Value [5] $ 5.7  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured loan    
Coupon [3] 10.22%  
Spread [3] 6.00%  
Principal [4],[5] $ 26.8  
Amortized Cost [4],[5] 26.8  
Fair Value [4],[5] $ 26.8  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured revolving loan    
Coupon [3] 10.61%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.4  
Amortized Cost [4],[5] 0.4  
Fair Value [4],[5] $ 0.4  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan    
Coupon, PIK [3] 15.73%  
Spread [3] 11.00%  
Principal [4],[5] $ 45.6  
Amortized Cost [4],[5] 45.6  
Fair Value [4],[5] $ 45.6  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 2    
Coupon, PIK [3] 15.73%  
Spread [3] 11.00%  
Principal [4],[5] $ 10.3  
Amortized Cost [4],[5] 10.3  
Fair Value [4],[5] $ 10.3  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 3    
Coupon, PIK [3] 15.73%  
Spread [3] 11.00%  
Principal [4],[5] $ 10.0  
Amortized Cost [4],[5] 10.0  
Fair Value [4],[5] 10.0  
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC    
Fair Value $ 21.8 $ 25.0
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC, Class A membership units    
Shares 9,750,000 9,750,000
Amortized Cost $ 9.8 [5] $ 9.8 [2]
Fair Value $ 8.6 [5] $ 11.5 [2]
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC, First lien senior secured loan    
Coupon 10.36% [3] 6.75% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 13.3 [4],[5] $ 13.5 [2],[7]
Amortized Cost 13.3 [4],[5] 13.5 [2],[7]
Fair Value 13.2 [4],[5] $ 13.5 [2],[7]
Investment, Identifier [Axis]: API Commercial Inc., API Military Inc., and API Space Intermediate, Inc., First lien senior secured loan    
Principal [5],[9] 7.3  
Amortized Cost [5],[9] 3.6  
Fair Value [5],[9] $ 3.6  
Investment, Identifier [Axis]: AQ Sage Buyer, LLC, First lien senior secured loan    
Coupon [3] 10.70%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 1.9  
Amortized Cost [4],[5],[6] 1.9  
Fair Value [4],[5],[6] $ 1.8  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 8.6
Amortized Cost [7]   8.6
Fair Value [7]   $ 8.6
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 1    
Coupon [3] 10.42%  
Spread [3] 6.25%  
Principal [4],[5] $ 8.9  
Amortized Cost [4],[5] 8.9  
Fair Value [4],[5] $ 8.8  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 2    
Coupon 10.42% [3] 7.00% [1]
Spread 6.25% [3] 6.00% [1]
Principal $ 8.5 [4],[5] $ 13.3 [2],[7]
Amortized Cost 8.5 [4],[5] 13.3 [2],[7]
Fair Value $ 8.3 [4],[5] $ 13.3 [2],[7]
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 3    
Coupon 10.42% [3] 7.00% [1]
Spread 6.25% [3] 6.00% [1]
Principal $ 5.6 [4],[5] $ 20.2 [2],[7]
Amortized Cost 5.6 [4],[5] 20.2 [2],[7]
Fair Value $ 5.5 [4],[5] $ 20.2 [2],[7]
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 4    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 1.0  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 5    
Coupon [3] 10.42%  
Spread [3] 6.25%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured revolving loan    
Coupon 10.42% [3] 7.00% [1]
Spread 6.25% [3] 6.00% [1]
Principal $ 1.4 [4],[5],[13] $ 0.3 [2],[7],[14]
Amortized Cost 1.4 [4],[5],[13] 0.3 [2],[7],[14]
Fair Value $ 1.4 [4],[5],[13] $ 0.3 [2],[7],[14]
Investment, Identifier [Axis]: ARES 2007-3R, Subordinated notes    
Shares 20.0  
Amortized Cost [6] $ 0.0  
Fair Value [6] $ 0.1  
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP, Class A units    
Shares 195,990  
Amortized Cost [5] $ 19.6  
Fair Value [5] $ 19.2  
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP, First lien senior secured loan    
Coupon [3] 10.38%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, Class A units    
Shares   195,990
Amortized Cost [2]   $ 19.6
Fair Value [2]   $ 19.6
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   6.00%
Principal [2],[7]   $ 46.3
Amortized Cost [2],[7]   46.3
Fair Value [2],[7]   $ 45.8
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured revolving loan    
Coupon [1]   6.75%
Spread [1]   6.00%
Principal [2],[7]   $ 1.2
Amortized Cost [2],[7]   1.2
Fair Value [2],[7]   $ 1.2
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan    
Coupon 9.36% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 33.0 [4],[5] $ 33.3 [7]
Amortized Cost 33.0 [4],[5] 33.3 [7]
Fair Value $ 33.0 [4],[5] $ 33.3 [7]
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan 2    
Coupon [3] 9.65%  
Spread [3] 5.00%  
Principal [4],[5] $ 8.2  
Amortized Cost [4],[5] 8.2  
Fair Value [4],[5] $ 8.2  
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan    
Coupon 11.50% [3] 6.00% [1]
Spread 4.00% [3] 5.00% [1]
Principal $ 4.7 [4],[5],[13] $ 8.1 [2],[7],[14]
Amortized Cost 4.7 [4],[5],[13] 8.1 [2],[7],[14]
Fair Value 4.7 [4],[5],[13] $ 8.1 [2],[7],[14]
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan 2    
Coupon [1]   7.25%
Spread [1]   4.00%
Principal [7]   $ 2.5
Amortized Cost [7]   2.5
Fair Value [7]   2.5
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC    
Fair Value $ 70.2 $ 63.9
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, Class A common units    
Shares 7,617,280 7,617,280
Amortized Cost $ 4.7 [5] $ 4.7 [2]
Fair Value $ 14.9 [5] $ 10.4 [2]
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured loan    
Coupon 13.73% [3] 10.00% [1]
Coupon, PIK 5.41% [3] 5.00% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 52.1 [4],[5] $ 49.5 [2],[7]
Amortized Cost 52.1 [4],[5] 49.5 [2],[7]
Fair Value $ 52.1 [4],[5] $ 49.5 [2],[7]
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan    
Coupon [1]   11.25%
Coupon, PIK [1]   5.00%
Spread [1]   8.00%
Principal [2],[7]   $ 4.0
Amortized Cost [2],[7]   4.0
Fair Value [2],[7]   $ 4.0
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 1    
Coupon [3] 15.50%  
Coupon, PIK [3] 5.00%  
Spread [3] 8.00%  
Principal [4],[5] $ 2.2  
Amortized Cost [4],[5] 2.2  
Fair Value [4],[5] $ 2.2  
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 2    
Coupon [3] 13.77%  
Coupon, PIK [3] 5.00%  
Spread [3] 9.00%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 1.0  
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., A ordinary shares    
Shares 2,476,744  
Amortized Cost [5],[6] $ 5.7  
Fair Value [5],[6] $ 6.5  
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., Class A ordinary shares    
Shares   1,237,500
Amortized Cost [2]   $ 2.5
Fair Value [2]   $ 2.8
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan    
Coupon 14.54% [3] 10.50% [1]
Coupon, PIK [3] 6.97%  
Spread 10.50% [3] 9.50% [1]
Principal $ 61.0 [4],[5],[6] $ 13.7 [2],[7]
Amortized Cost 61.0 [4],[5],[6] 13.7 [2],[7]
Fair Value $ 59.8 [4],[5],[6] $ 13.7 [2],[7]
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan 2    
Coupon [1]   11.50%
Coupon, PIK [1]   5.75%
Spread [1]   10.50%
Principal [2],[7]   $ 30.5
Amortized Cost [2],[7]   30.5
Fair Value [2],[7]   $ 30.5
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC, Class A common units    
Shares 236,358 236,358
Amortized Cost $ 4.3 $ 4.3
Fair Value $ 6.6 $ 4.0
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC, First lien senior secured revolving loan    
Coupon 12.48% [3] 10.00% [1]
Coupon, PIK [3] 0.60%  
Spread 7.75% [3] 9.00% [1]
Principal $ 4.1 [4],[5] $ 4.1 [2],[7]
Amortized Cost 4.1 [4],[5] 4.1 [2],[7]
Fair Value $ 4.1 [4],[5] $ 3.9 [2],[7]
Investment, Identifier [Axis]: Acrisure, LLC and Acrisure Finance, Inc., Senior subordinated loan    
Coupon [3] 700.00%  
Principal [5],[11] $ 0.5  
Amortized Cost [5],[11] 0.5  
Fair Value [5],[11] $ 0.5  
Investment, Identifier [Axis]: Advarra Holdings, Inc., First lien senior secured loan    
Coupon [3] 10.15%  
Spread [3] 5.75%  
Principal [4],[5] $ 4.1  
Amortized Cost [4],[5] 4.1  
Fair Value [4],[5] $ 3.9  
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan    
Coupon 13.24% [3] 8.00% [1]
Spread 9.00% [3] 6.50% [1]
Principal $ 36.2 [4],[5] $ 36.6 [7]
Amortized Cost 36.2 [4],[5] 36.6 [7]
Fair Value $ 35.1 [4],[5] $ 36.6 [7]
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan 2    
Coupon 13.24% [3] 8.00% [1]
Spread 9.00% [3] 6.50% [1]
Principal $ 1.1 [4],[5] $ 1.2 [2],[7]
Amortized Cost 1.1 [4],[5] 1.2 [2],[7]
Fair Value $ 1.1 [4],[5] $ 1.2 [2],[7]
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   5.00%
Principal [7]   $ 64.0
Amortized Cost [7]   64.0
Fair Value [7]   $ 64.0
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 1    
Coupon [3] 10.64%  
Spread [3] 5.75%  
Principal [4],[5] $ 120.6  
Amortized Cost [4],[5] 118.4  
Fair Value [4],[5] $ 115.7  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 2    
Coupon [3] 10.45%  
Spread [3] 5.75%  
Principal [4],[5] $ 63.3  
Amortized Cost [4],[5] 63.3  
Fair Value [4],[5] $ 60.8  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, Senior subordinated loan    
Coupon, PIK 14.70% [3] 12.75% [1]
Spread [3] 10.00%  
Principal $ 56.8 [4],[5] $ 27.5 [2]
Amortized Cost 56.8 [4],[5] 27.5 [2]
Fair Value $ 54.4 [4],[5] $ 27.5 [2]
Investment, Identifier [Axis]: Aimbridge Acquisition Co., Inc., Second lien senior secured loan    
Coupon 11.62% [3] 7.60% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 22.5 [5] $ 22.5 [2]
Amortized Cost 22.3 [5] 22.2 [2]
Fair Value $ 21.8 [5] $ 21.4 [2]
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, Common units    
Shares   3,663,533
Amortized Cost [2]   $ 35.0
Fair Value [2]   $ 19.5
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, First lien senior secured loan    
Coupon 11.42% [3] 4.39% [1]
Spread 7.00% [3] 4.25% [1]
Principal $ 9.5 [5] $ 29.2
Amortized Cost 9.5 [5] 29.1
Fair Value $ 9.0 [5] $ 28.0
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, Second lien senior secured loan    
Coupon [1]   8.14%
Coupon, PIK [3] 8.00%  
Spread [1]   8.00%
Principal $ 19.5 [5] $ 77.5 [2]
Amortized Cost 19.5 [5] 77.1 [2]
Fair Value $ 19.5 [5] $ 69.0 [2]
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured loan    
Coupon 10.42% [3] 6.25% [1]
Spread 6.00% [3] 5.50% [1]
Principal $ 60.6 [4],[5] $ 96.6 [2],[7]
Amortized Cost 60.6 [4],[5] 96.6 [2],[7]
Fair Value $ 58.8 [4],[5] $ 95.6 [2],[7]
Investment, Identifier [Axis]: Alteon Health, LLC. First lien senior secured loan    
Coupon [1]   7.50%
Spread [1]   6.50%
Principal [2],[7]   $ 2.8
Amortized Cost [2],[7]   2.8
Fair Value [2],[7]   $ 2.8
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan    
Coupon [3] 7.14%  
Spread [3] 2.75%  
Principal [4],[5] $ 0.6  
Amortized Cost [4],[5] 0.6  
Fair Value [4],[5] $ 0.6  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan 2    
Coupon [3] 9.25%  
Spread [3] 1.75%  
Principal [5] $ 0.3  
Amortized Cost [5] 0.3  
Fair Value [5] $ 0.3  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, Second lien senior secured loan    
Coupon 13.23% [3] 9.50% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 56.4 [4],[5] $ 56.4 [2],[7]
Amortized Cost 56.4 [4],[5] 56.4 [2],[7]
Fair Value $ 56.4 [4],[5] $ 56.4 [2],[7]
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, Series A preferred units    
Coupon, PIK 10.00% [3] 10.00% [1]
Shares 2,531,500 2,531,500
Amortized Cost $ 3.2 [5] $ 2.8 [2]
Fair Value $ 6.5 [5] $ 3.7 [2]
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Class A units    
Shares 77,922 77,922
Amortized Cost $ 0.1 [5] $ 0.1 [2]
Fair Value $ 0.3 [5] $ 0.2 [2]
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Warrant to purchase Class A units    
Shares   7,422,078
Amortized Cost [2]   $ 7.4
Fair Value [2]   $ 18.9
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Warrant to purchase up to 7,422,078 Class A units    
Shares 7,422,078  
Amortized Cost [5] $ 7.4  
Fair Value [5] $ 28.0  
Investment, Identifier [Axis]: Amryt Pharmaceuticals, Inc., First lien senior secured loan    
Coupon [3] 10.46%  
Spread [3] 6.75%  
Principal [4],[5],[6] $ 12.7  
Amortized Cost [4],[5],[6] 12.7  
Fair Value [4],[5],[6] $ 12.7  
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan    
Coupon 9.58% [3] 4.60% [1]
Spread 5.00% [3] 4.50% [1]
Principal $ 14.6 [5] $ 1.0 [2]
Amortized Cost 13.9 [5] 1.0 [2]
Fair Value $ 14.0 [5] $ 1.0 [2]
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan 2    
Coupon [3] 8.88%  
Spread [3] 4.50%  
Principal [5] $ 2.3  
Amortized Cost [5] 2.3  
Fair Value [5] $ 2.2  
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured loan    
Coupon [3] 10.82%  
Spread [3] 6.50%  
Principal [4],[5] $ 1.8  
Amortized Cost [4],[5] 1.8  
Fair Value [4],[5] $ 1.7  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   6.25%
Principal   $ 4.7
Amortized Cost   4.6
Fair Value   $ 4.7
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 1    
Coupon [3] 7.52%  
Spread [3] 5.50%  
Principal [5] $ 4.4  
Amortized Cost [5] 4.6  
Fair Value [5] $ 4.4  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 2    
Coupon 9.11% [3] 7.00% [1]
Spread 5.25% [3] 6.00% [1]
Principal $ 1.0 [4],[5] $ 16.0 [2],[7]
Amortized Cost 1.0 [4],[5] 16.0 [2],[7]
Fair Value $ 1.0 [4],[5] $ 16.0 [2],[7]
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, Limited partnership units    
Shares 4,400,000 4,400,000
Amortized Cost $ 4.2 [5],[6] $ 4.2 [2],[8]
Fair Value 8.3 [5],[6] 7.6 [2],[8]
Investment, Identifier [Axis]: Apex Clean Energy TopCo, LLC    
Fair Value $ 150.6 $ 79.1
Investment, Identifier [Axis]: Apex Clean Energy TopCo, LLC, Class A common units    
Shares 1,335,610 1,335,610
Amortized Cost $ 98.7 $ 80.5
Fair Value $ 150.6 $ 79.1
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured loan    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.8  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] $ 0.8  
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured revolving loan    
Coupon [3] 12.25%  
Spread [3] 4.75%  
Principal [4] $ 1.1  
Amortized Cost [4] 0.9  
Fair Value [4] $ 1.1  
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc., First lien senior secured loan    
Coupon 11.54% [3] 8.25% [1]
Spread 7.25% [3] 7.25% [1]
Principal $ 5.7 [4],[5] $ 13.4 [2],[7]
Amortized Cost 5.7 [4],[5] 13.4 [2],[7]
Fair Value $ 5.7 [4],[5] $ 13.4 [2],[7]
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc., Series A preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 32,236 32,236
Amortized Cost $ 38.7 [5] $ 34.6 [2]
Fair Value $ 35.6 [5] $ 34.6 [2]
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured loan    
Coupon 9.94% [3] 8.25% [1]
Spread 6.00% [3] 7.25% [1]
Principal $ 15.1 [4],[5] $ 62.2 [7]
Amortized Cost 15.1 [4],[5] 62.2 [7]
Fair Value $ 15.1 [4],[5] $ 62.2 [7]
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured revolving loan    
Coupon 9.93% [3] 8.25% [1]
Spread 6.00% [3] 7.25% [1]
Principal $ 2.5 [4],[5] $ 1.7 [2],[7]
Amortized Cost 2.5 [4],[5] 1.7 [2],[7]
Fair Value $ 2.5 [4],[5] $ 1.7 [2],[7]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan    
Coupon 8.81% [3] 8.21% [1]
Spread 5.75% [3] 7.46% [1]
Principal $ 90.0 [4],[5],[6] $ 69.5 [2],[7],[8]
Amortized Cost 90.0 [4],[5],[6] 64.8 [2],[7],[8]
Fair Value $ 89.1 [4],[5],[6] $ 69.5 [2],[7],[8]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 2    
Coupon 8.19% [3] 7.50% [1]
Spread 6.50% [3] 6.75% [1]
Principal $ 66.8 [4],[5],[6] $ 14.5 [2],[7],[8]
Amortized Cost 64.5 [4],[5],[6] 14.8 [2],[7],[8]
Fair Value $ 66.8 [4],[5],[6] $ 14.5 [2],[7],[8]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 3    
Coupon 8.19% [3] 7.75% [1]
Spread 7.00% [3] 6.75% [1]
Principal $ 75.0 [4],[5],[6] $ 7.5 [2],[7],[8]
Amortized Cost 79.4 [4],[5],[6] 7.5 [2],[7],[8]
Fair Value $ 75.0 [4],[5],[6] $ 7.5 [2],[7],[8]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 4    
Coupon 8.00% [3] 6.75% [1]
Spread 7.00% [3] 6.00% [1]
Principal $ 7.0 [4],[5],[6] $ 111.2 [2],[7],[8]
Amortized Cost 7.5 [4],[5],[6] 111.2 [2],[7],[8]
Fair Value $ 7.0 [4],[5],[6] $ 111.2 [2],[7],[8]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, Senior subordinated loan    
Coupon, PIK 11.50% [3] 11.50% [1]
Principal $ 1.4 [5],[6],[13] $ 1.3 [2],[8],[12]
Amortized Cost 1.4 [5],[6],[13] 1.2 [2],[8],[12]
Fair Value $ 1.4 [5],[6],[13] 1.4 [2],[8],[12]
Investment, Identifier [Axis]: Ares IIIR/IVR CLO Ltd., Subordinated notes    
Principal [8]   20.0
Amortized Cost [8]   0.0
Fair Value [8]   $ 0.0
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan    
Coupon [3] 11.49%  
Spread [3] 7.25%  
Principal [4],[5],[6] $ 20.9  
Amortized Cost [4],[5],[6] 20.9  
Fair Value [4],[5],[6] $ 20.7  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan 2    
Coupon [3] 11.53%  
Spread [3] 7.25%  
Principal [4],[5],[6] $ 5.9  
Amortized Cost [4],[5],[6] 5.9  
Fair Value [4],[5],[6] $ 5.8  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 21.1
Amortized Cost [2],[7]   21.1
Fair Value [2],[7]   $ 20.9
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., Common stock    
Shares 5,054 4,900
Amortized Cost $ 5.1 [5] $ 4.9 [2]
Fair Value $ 6.4 [5] $ 6.7 [2]
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured loan    
Coupon 8.68% [3] 5.25% [1]
Spread 4.50% [3] 4.50% [1]
Principal $ 0.1 [4],[5],[13] $ 27.6 [2],[7]
Amortized Cost 0.1 [4],[5],[13] 27.6 [2],[7]
Fair Value $ 0.1 [4],[5],[13] $ 27.2 [2],[7]
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured revolving loan    
Coupon [1]   5.25%
Spread [1]   4.50%
Principal [2],[7],[14]   $ 3.7
Amortized Cost [2],[7],[14]   3.7
Fair Value [2],[7],[14]   $ 3.6
Investment, Identifier [Axis]: AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP, Class A units    
Shares 10,487,950  
Amortized Cost [5] $ 10.5  
Fair Value [5] $ 9.5  
Investment, Identifier [Axis]: AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP, Series A preferred stock    
Coupon, PIK [3] 10.75%  
Shares 198,504  
Amortized Cost [5] $ 218.1  
Fair Value [5] $ 198.5  
Investment, Identifier [Axis]: AthenaHealth Group Inc., VVC Holding Corp, Virence Intermediate Holding Corp, and Virence Holdings LLC, Class A interests    
Shares (as a percent)   0.39%
Amortized Cost [2]   $ 9.0
Fair Value [2]   $ 49.3
Investment, Identifier [Axis]: Athyrium Buffalo LP, Limited partnership interests    
Shares 7,628,966  
Amortized Cost [5],[6] $ 7.6  
Fair Value [5],[6] $ 7.5  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan    
Coupon 10.48% [3] 6.50% [1]
Spread 5.75% [3] 5.50% [1]
Principal $ 0.1 [4],[5] $ 0.2 [2],[7]
Amortized Cost 0.1 [4],[5] 0.2 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.2 [2],[7]
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 2    
Coupon 10.48% [3] 6.50% [1]
Spread 5.75% [3] 5.50% [1]
Principal $ 0.1 [4],[5] $ 2.1 [2],[7]
Amortized Cost 0.1 [4],[5] 2.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 2.1 [2],[7]
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 3    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 4    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured revolving loan    
Coupon [3] 10.10%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, Class A common units    
Shares 5,208,159 4,113,113
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.6 [2]
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan    
Coupon 10.93% [3] 6.00% [1]
Spread 6.25% [3] 5.00% [1]
Principal $ 5.3 [4],[5] $ 10.0 [2],[7]
Amortized Cost 5.3 [4],[5] 10.0 [2],[7]
Fair Value $ 5.3 [4],[5] $ 10.0 [2],[7]
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan 2    
Coupon [3] 9.73%  
Spread [3] 5.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, Preferred units    
Coupon, PIK 9.00% 9.00% [1]
Shares 5,208,159 4,113,113
Amortized Cost $ 6.1 [5] $ 4.5
Fair Value $ 5.2 [5] $ 4.5
Investment, Identifier [Axis]: Avalara, Inc., First lien senior secured loan    
Coupon [3] 11.83%  
Spread [3] 7.25%  
Principal [4],[5] $ 72.2  
Amortized Cost [4],[5] 72.2  
Fair Value [4],[5] $ 70.4  
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, First lien senior secured loan    
Coupon 10.38% [3] 6.75% [1]
Coupon, PIK [3] 4.12%  
Spread 6.00% [3] 6.00% [1]
Principal $ 9.4 [4],[5] $ 6.6 [2],[7]
Amortized Cost 9.4 [4],[5] 6.6 [2],[7]
Fair Value $ 9.3 [4],[5] $ 6.5 [2],[7]
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, Senior subordinated loan    
Coupon [1]   10.25%
Coupon, PIK [3] 10.25%  
Principal $ 39.4 [5] $ 35.6 [2]
Amortized Cost 39.4 [5] 35.6 [2]
Fair Value $ 36.2 [5] $ 35.3 [2]
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., First lien senior secured loan    
Coupon [3] 9.23%  
Spread [3] 4.50%  
Principal [4],[5],[11] $ 9.1  
Amortized Cost [4],[5],[11] 8.8  
Fair Value [4],[5],[11] $ 6.8  
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., Second lien senior secured loan    
Coupon [3] 12.66%  
Spread [3] 8.25%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Avetta, LLC, First lien senior secured loan    
Coupon 10.16% [3] 7.25% [1]
Spread 5.75% [3] 6.25% [1]
Principal $ 0.2 [4],[5] $ 11.8 [2],[7]
Amortized Cost 0.2 [4],[5] 11.8 [2],[7]
Fair Value $ 0.1 [4],[5] $ 11.8 [2],[7]
Investment, Identifier [Axis]: AxiomSL Group, Inc. and Calypso Group, Inc., First lien senior secured loan    
Coupon 10.13% [3] 7.00% [1]
Spread 5.75% [3] 6.00% [1]
Principal $ 21.2 [4],[5] $ 21.4 [2],[7]
Amortized Cost 20.8 [4],[5] 21.0 [2],[7]
Fair Value $ 21.2 [4],[5] $ 21.2 [2],[7]
Investment, Identifier [Axis]: Axiomatic, LLC, Class A-1 units    
Shares 500,000  
Amortized Cost $ 5.0  
Fair Value $ 5.3  
Investment, Identifier [Axis]: BAART Programs, Inc., MedMark Services, Inc., and Canadian Addiction Treatment Centres LP, First lien senior secured loan    
Coupon [3] 9.73%  
Spread [3] 5.00%  
Principal [4],[5] $ 6.0  
Amortized Cost [4],[5] 6.1  
Fair Value [4],[5] $ 5.9  
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, Common units    
Shares 4,666,301 4,220,159
Amortized Cost $ 4.7 [5] $ 4.2 [2]
Fair Value $ 3.9 [5] $ 4.1 [2]
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, First lien senior secured loan    
Coupon 11.02% [3] 7.00% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 0.2 [4],[5] $ 0.2 [2],[7]
Amortized Cost 0.2 [4],[5] 0.2 [2],[7]
Fair Value $ 0.2 [4],[5] $ 0.2 [2],[7]
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, Senior subordinated loan    
Coupon, PIK 9.30% [3] 9.30% [1]
Principal $ 5.0 [5] $ 4.5 [2]
Amortized Cost 5.0 [5] 4.5 [2]
Fair Value $ 4.9 [5] 4.5 [2]
Investment, Identifier [Axis]: BH-Sharp Holdings LP, Common units    
Shares 2,950,000  
Amortized Cost [5] $ 3.0  
Fair Value [5] $ 2.3  
Investment, Identifier [Axis]: BW Landco LLC    
Fair Value   $ 0.0
Investment, Identifier [Axis]: Badger Sportswear Acquisition, Inc., Second lien senior secured loan    
Coupon 13.57% [3] 10.25% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 56.8 [4],[5] $ 56.8 [2],[7]
Amortized Cost 56.8 [4],[5] 56.8 [2],[7]
Fair Value $ 56.8 [4],[5] $ 56.8 [2],[7]
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Class A preferred units    
Coupon, PIK 8.00% [3] 800.00% [1]
Shares 5,484 5,484
Amortized Cost $ 6.1 [5] $ 5.6 [2]
Fair Value $ 10.5 [5] $ 5.5 [2]
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Second lien senior secured loan    
Coupon 11.73% [3] 7.50% [1]
Spread 7.00% [3] 7.00% [1]
Principal $ 29.5 [4],[5] $ 29.5 [2],[7]
Amortized Cost 29.5 [4],[5] 29.5 [2],[7]
Fair Value $ 29.5 [4],[5] $ 29.4 [2],[7]
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Series A preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 21,921 21,921
Amortized Cost $ 25.4 [5] $ 22.7 [2]
Fair Value $ 25.4 [5] $ 22.7 [2]
Investment, Identifier [Axis]: Bambino Group Holdings, LLC, Class A preferred units    
Shares 1,000,000 1,000,000
Amortized Cost $ 1.0 [5] $ 1.0 [2]
Fair Value $ 0.9 [5] $ 1.1 [2]
Investment, Identifier [Axis]: Bamboo Purchaser, Inc., First lien senior secured loan    
Coupon 10.73% [3] 6.75% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 17.9 [4],[5] $ 39.1 [2],[7]
Amortized Cost 17.9 [4],[5] 39.1 [2],[7]
Fair Value $ 17.4 [4],[5] $ 38.6 [2],[7]
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan    
Coupon [1]   7.75%
Spread [1]   6.75%
Principal [2],[7]   $ 6.7
Amortized Cost [2],[7]   6.7
Fair Value [2],[7]   $ 6.7
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 1    
Coupon [3] 11.23%  
Spread [3] 6.50%  
Principal [4],[5] $ 20.3  
Amortized Cost [4],[5] 20.3  
Fair Value [4],[5] $ 20.3  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 2    
Coupon 11.23% [3] 7.75% [1]
Spread 6.50% [3] 6.75% [1]
Principal $ 1.0 [4],[5] $ 7.7 [2],[7]
Amortized Cost 1.0 [4],[5] 7.7 [2],[7]
Fair Value $ 1.0 [4],[5] $ 7.7 [2],[7]
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 3    
Coupon [1]   8.50%
Spread [1]   7.50%
Principal [2],[7]   $ 5.0
Amortized Cost [2],[7]   5.0
Fair Value [2],[7]   $ 5.0
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured revolving loan    
Coupon [3] 10.88%  
Spread [3] 6.50%  
Principal [4],[5] $ 0.9  
Amortized Cost [4],[5] 0.9  
Fair Value [4],[5] $ 0.9  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, Preferred units    
Shares 120,999  
Amortized Cost [5] $ 4.1  
Fair Value [5] $ 5.4  
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien senior secured loan    
Coupon 9.39% [3] 6.00% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 17.9 [4],[5],[6] $ 14.5 [7],[8]
Amortized Cost 17.9 [4],[5],[6] 14.5 [7],[8]
Fair Value $ 17.7 [4],[5],[6] $ 14.4 [7],[8]
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Class B common units    
Shares   4,211
Amortized Cost [2]   $ 4.2
Fair Value [2]   $ 10.8
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 1    
Coupon [1]   9.25%
Spread [1]   8.25%
Principal [2],[7]   $ 69.5
Amortized Cost [2],[7]   69.5
Fair Value [2],[7]   $ 69.5
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 2    
Coupon [1]   9.25%
Spread [1]   8.25%
Principal [2],[7]   $ 12.7
Amortized Cost [2],[7]   12.7
Fair Value [2],[7]   $ 12.7
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan    
Coupon 7.25% [3] 5.50% [1]
Spread 3.75% [3] 2.25% [1]
Principal $ 11.6 [5],[13] $ 0.0 [2],[14]
Amortized Cost 12.1 [5],[13] 0.0 [2],[14]
Fair Value $ 12.1 [5],[13] $ 0.0 [2],[14]
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan 2    
Coupon [3] 10.25%  
Spread [3] 2.75%  
Principal [5],[13] $ 1.4  
Amortized Cost [5],[13] 1.5  
Fair Value [5],[13] $ 1.4  
Investment, Identifier [Axis]: Benecon Midco II LLC and Locutus Holdco LLC, Common units    
Shares 9,803,682 9,803,682
Amortized Cost $ 10.0 $ 10.0
Fair Value $ 22.1 $ 15.5
Investment, Identifier [Axis]: Benefytt Technologies, Inc., First lien senior secured loan    
Coupon 13.16% [3] 6.75% [1]
Coupon, PIK [3] 9.18%  
Spread 8.75% [3] 6.00% [1]
Principal $ 29.1 [4],[5] $ 23.4 [2],[7]
Amortized Cost 29.1 [4],[5] 23.4 [2],[7]
Fair Value $ 23.9 [4],[5] $ 23.2 [2],[7]
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan    
Coupon 12.00% [3] 8.75% [1]
Spread 4.50% [3] 5.50% [1]
Principal $ 0.4 [4],[5] $ 0.4 [2],[7]
Amortized Cost 0.4 [4],[5] 0.4 [2],[7]
Fair Value $ 0.4 [4],[5] $ 0.4 [2],[7]
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan 2    
Coupon 9.91% [3] 7.50% [1]
Spread 5.50% [3] 6.50% [1]
Principal $ 0.1 [4],[5] $ 0.3 [2],[7]
Amortized Cost 0.1 [4],[5] 0.3 [2],[7]
Fair Value 0.1 [4],[5] $ 0.3 [2],[7]
Investment, Identifier [Axis]: Birch Permian, LLC, Second lien senior secured loan    
Coupon [1]   9.50%
Spread [1]   8.00%
Principal [2],[7]   $ 75.7
Amortized Cost [2],[7]   75.5
Fair Value [2],[7]   75.7
Investment, Identifier [Axis]: Blue Angel Buyer 1, LLC and Blue Angel Holdco, LLC    
Fair Value   0.0
Investment, Identifier [Axis]: Blue Wolf Capital Fund II, L.P.    
Fair Value $ 0.1 $ 0.2
Investment, Identifier [Axis]: Blue Wolf Capital Fund II, L.P., Limited partnership interest    
Shares (as a percent) 8.50% 8.50%
Amortized Cost $ 0.0 [6],[11] $ 0.0 [8],[12]
Fair Value $ 0.1 [6],[11] $ 0.2 [8],[12]
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured loan    
Coupon [3] 10.70%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 1.0  
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured revolving loan    
Coupon [3] 10.72%  
Spread [3] 6.00%  
Principal [4],[5] $ 2.8  
Amortized Cost [4],[5] 2.7  
Fair Value [4],[5] $ 2.7  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan    
Coupon [1]   7.50%
Coupon, PIK [1]   3.00%
Spread [1]   6.50%
Principal [2],[7]   $ 15.5
Amortized Cost [2],[7]   15.2
Fair Value [2],[7]   $ 15.5
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 1    
Coupon [3] 8.23%  
Coupon, PIK [3] 3.00%  
Spread [3] 3.50%  
Principal [4],[5] $ 15.9  
Amortized Cost [4],[5] 15.7  
Fair Value [4],[5] $ 15.9  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 2    
Coupon [3] 8.23%  
Coupon, PIK [3] 3.00%  
Spread [3] 3.50%  
Principal [4],[5] $ 1.4  
Amortized Cost [4],[5] 1.4  
Fair Value [4],[5] $ 1.4  
Investment, Identifier [Axis]: Bottomline Technologies, Inc., First lien senior secured loan    
Coupon [3] 9.82%  
Spread [3] 5.50%  
Principal [4],[5] $ 18.0  
Amortized Cost [4],[5] 18.0  
Fair Value [4],[5] $ 17.6  
Investment, Identifier [Axis]: Bowhunter Holdings, LLC, Common units    
Shares 421 421
Amortized Cost $ 4.2 $ 4.2
Fair Value 0.0 0.0
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P.    
Fair Value $ 39.1 $ 47.8
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., Common units    
Shares 14,850 14,850
Amortized Cost $ 11.5 [5] $ 11.5 [2]
Fair Value $ 10.8 [5] $ 8.8 [2]
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured loan    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [7]   $ 39.4
Amortized Cost [7]   39.4
Fair Value [7]   $ 37.4
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured revolving loan    
Coupon 11.58% [3] 7.25% [1]
Spread 7.00% [3] 6.25% [1]
Principal $ 28.9 [4],[5] $ 1.7 [2],[7]
Amortized Cost 28.9 [4],[5] 1.7 [2],[7]
Fair Value $ 28.3 [4],[5] $ 1.6 [2],[7]
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, First lien senior secured loan    
Coupon [3] 9.67%  
Spread [3] 5.25%  
Principal [4],[5],[11] $ 4.8  
Amortized Cost [4],[5],[11] 4.4  
Fair Value [4],[5],[11] $ 4.3  
Investment, Identifier [Axis]: Businessolver.com, Inc., First lien senior secured loan    
Coupon 9.67% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 14.7 [4],[5] $ 70.2 [2],[7]
Amortized Cost 14.7 [4],[5] 70.2 [2],[7]
Fair Value $ 14.5 [4],[5] $ 69.5 [2],[7]
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured loan    
Coupon 9.91% [3] 5.63% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 33.6 [5],[11] $ 34.0
Amortized Cost 33.5 [5],[11] 33.8
Fair Value 26.2 [5],[11] $ 33.3
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] $ 0.0 [16]
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp., Common stock    
Shares 6,149 6,149
Amortized Cost $ 6.1 [5] $ 6.1 [2]
Fair Value $ 4.4 [5] $ 6.1 [2]
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp., First lien senior secured loan    
Coupon 10.13% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 3.8 [4],[5] $ 3.8 [2],[7]
Amortized Cost 3.8 [4],[5] 3.8 [2],[7]
Fair Value $ 3.6 [4],[5] $ 3.8 [2],[7]
Investment, Identifier [Axis]: CHG PPC Parent LLC & PPC CHG Blocker LLC, Common units    
Shares 59 58.56
Amortized Cost $ 3.0 [5] $ 3.0 [2]
Fair Value $ 2.9 [5] $ 3.0 [2]
Investment, Identifier [Axis]: CHG PPC Parent LLC & PPC CHG Blocker LLC, Second lien senior secured loan    
Coupon 11.13% [3] 7.25% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 94.6 [4],[5] $ 94.6 [2],[7]
Amortized Cost 94.6 [4],[5] 94.6 [2],[7]
Fair Value $ 89.9 [4],[5] $ 93.7 [2],[7]
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., Common stock    
Shares 289  
Amortized Cost [5] $ 2.9  
Fair Value [5] $ 4.6  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan    
Coupon [3] 9.52%  
Spread [3] 5.25%  
Principal [4],[5] $ 21.8  
Amortized Cost [4],[5] 21.8  
Fair Value [4],[5] $ 21.4  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan 2    
Coupon [3] 9.40%  
Spread [3] 5.00%  
Principal [4],[5] $ 3.8  
Amortized Cost [4],[5] 3.8  
Fair Value [4],[5] $ 3.7  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured revolving loan    
Coupon [3] 9.47%  
Spread [3] 5.00%  
Principal $ 0.4  
Amortized Cost 0.4  
Fair Value $ 0.4  
Investment, Identifier [Axis]: CMW Parent LLC (fka Black Arrow, Inc.), Series A units    
Shares 32 32
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: CREST Exeter Street Solar 2004-1, Preferred shares    
Shares 3,500,000 3,500,000
Amortized Cost $ 0.0 [6] $ 0.0 [8]
Fair Value $ 0.0 [6] $ 0.0 [8]
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured loan    
Coupon [3] 10.97%  
Spread [3] 6.75%  
Principal [4],[5] $ 11.8  
Amortized Cost [4],[5] 11.8  
Fair Value [4],[5] $ 11.4  
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured revolving loan    
Coupon [3] 10.97%  
Spread [3] 6.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, Common stock    
Shares 41,443 32,429
Amortized Cost $ 14.5 [5] $ 10.0 [2]
Fair Value $ 22.7 [5] $ 15.9 [2]
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 1    
Coupon 11.13% [3] 6.25% [1]
Spread 6.40% [3] 5.25% [1]
Principal $ 49.5 [4],[5] $ 39.4 [7]
Amortized Cost 49.5 [4],[5] 39.4 [7]
Fair Value $ 49.0 [4],[5] $ 39.4 [7]
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 2    
Coupon 11.13% [3] 6.75% [1]
Spread 6.40% [3] 5.75% [1]
Principal $ 38.9 [4],[5] $ 49.2 [2],[7]
Amortized Cost 38.9 [4],[5] 49.2 [2],[7]
Fair Value $ 38.5 [4],[5] $ 49.2 [2],[7]
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 3    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 1.7  
Amortized Cost [4],[5] 1.7  
Fair Value [4],[5] $ 1.6  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 4    
Coupon [3] 11.13%  
Spread [3] 6.40%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured revolving loan    
Coupon [1]   8.00%
Spread [1]   4.75%
Principal [2],[7],[14]   $ 0.4
Amortized Cost [2],[7],[14]   0.4
Fair Value [2],[7],[14]   $ 0.4
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan    
Coupon [3] 12.92%  
Coupon, PIK [3] 2.00%  
Spread [3] 8.50%  
Principal [4],[5] $ 31.1  
Amortized Cost [4],[5] 31.1  
Fair Value [4],[5] $ 30.5  
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 1    
Coupon [1]   9.50%
Coupon, PIK [1]   5.25%
Spread [1]   8.50%
Principal [7]   $ 31.4
Amortized Cost [7]   31.3
Fair Value [7]   $ 30.5
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 2    
Coupon 12.92% [3] 9.50% [1]
Coupon, PIK 2.00% [3] 5.25% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 11.9 [4],[5] $ 9.8 [2],[7]
Amortized Cost 11.9 [4],[5] 9.8 [2],[7]
Fair Value $ 11.6 [4],[5] $ 9.5 [2],[7]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 3    
Coupon 12.92% [3] 9.50% [1]
Coupon, PIK 2.00% [3] 5.25% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 9.7 [4],[5] $ 12.0 [2],[7]
Amortized Cost 9.7 [4],[5] 12.0 [2],[7]
Fair Value $ 9.5 [4],[5] $ 11.6 [2],[7]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 4    
Coupon [3] 2.00%  
Coupon, PIK 13.23% [3] 5.25% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 7.8 [4],[5] $ 7.9 [2],[7]
Amortized Cost 7.8 [4],[5] 7.9 [2],[7]
Fair Value $ 7.6 [4],[5] $ 7.6 [2],[7]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 5    
Coupon 12.92% [3] 9.50% [1]
Coupon, PIK 2.00% [3] 5.25% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 5.3 [4],[5] $ 4.0 [7]
Amortized Cost 5.2 [4],[5] 3.7 [7]
Fair Value $ 5.2 [4],[5] $ 3.9 [7]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan    
Coupon 12.92% [3] 9.50% [1]
Coupon, PIK 2.00% [3] 5.25% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 13.7 [4],[5],[13] $ 7.9 [2],[7],[14]
Amortized Cost 13.7 [4],[5],[13] 7.9 [2],[7],[14]
Fair Value $ 13.4 [4],[5],[13] $ 7.6 [2],[7],[14]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 2    
Coupon 12.92% [3] 8.75% [1]
Coupon, PIK [3] 2.00%  
Spread 8.50% [3] 5.50% [1]
Principal $ 1.0 [4],[5] $ 3.0 [7]
Amortized Cost 1.0 [4],[5] 3.0 [7]
Fair Value $ 1.0 [4],[5] $ 2.9 [7]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 3    
Coupon [1]   9.50%
Coupon, PIK [1]   5.25%
Spread [1]   8.50%
Principal [2],[7]   $ 0.7
Amortized Cost [2],[7]   0.7
Fair Value [2],[7]   $ 0.7
Investment, Identifier [Axis]: Caerus Midco 3 S.à r.l., First lien senior secured loan    
Coupon [3] 9.83%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 5.4  
Amortized Cost [4],[5],[6] 5.3  
Fair Value [4],[5],[6] $ 5.3  
Investment, Identifier [Axis]: CallMiner, Inc., Warrant to purchase shares of Series 1 preferred stock    
Shares   2,350,636
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: CallMiner, Inc., Warrant to purchase up to 2,350,636 shares of Series 1 preferred stock    
Shares 2,350,636  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Calyx Energy III, LLC, First lien senior secured loan    
Coupon [3] 12.37%  
Spread [3] 8.00%  
Principal [4],[5] $ 57.0  
Amortized Cost [4],[5] 57.0  
Fair Value [4],[5] $ 57.0  
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, Class A units    
Shares 10,581 10,581
Amortized Cost $ 10.6 [5] $ 10.6 [2]
Fair Value $ 20.1 [5] $ 14.4 [2]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured loan    
Coupon 9.13% [3] 5.75% [1]
Spread 4.75% [3] 4.75% [1]
Principal $ 0.2 [4],[5] $ 0.3 [2],[7]
Amortized Cost 0.2 [4],[5] 0.3 [2],[7]
Fair Value 0.2 [4],[5] $ 0.3 [2],[7]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured revolving loan    
Coupon [1]   7.00%
Spread [1]   3.75%
Principal 0.0 [15] $ 2.3 [2],[7],[14]
Amortized Cost 0.0 [15] 2.3 [2],[7],[14]
Fair Value $ 0.0 [15] $ 2.3 [2],[7],[14]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, Second lien senior secured loan    
Coupon 13.13% [3] 9.75% [1]
Spread 8.75% [3] 8.75% [1]
Principal $ 68.3 [4],[5] $ 68.3 [2],[7]
Amortized Cost 68.3 [4],[5] 68.3 [2],[7]
Fair Value $ 68.3 [4],[5] $ 68.3 [2],[7]
Investment, Identifier [Axis]: Captive Resources Midco, LLC, First lien senior secured loan    
Coupon [3] 7.20%  
Spread [3] 2.88%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., First lien senior secured revolving loan    
Coupon 11.00% [3] 6.75% [1]
Spread 3.50% [3] 3.50% [1]
Principal $ 3.4 [4],[5] $ 0.6 [2],[7]
Amortized Cost 3.4 [4],[5] 0.6 [2],[7]
Fair Value $ 3.0 [4],[5] $ 0.6 [2],[7]
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Second lien senior secured loan    
Coupon 12.46% [3] 8.50% [1]
Spread 7.75% [3] 7.75% [1]
Principal $ 64.3 [4],[5] $ 59.9 [2],[7]
Amortized Cost 64.3 [4],[5] 59.9 [2],[7]
Fair Value $ 57.8 [4],[5] $ 59.9 [2],[7]
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A preferred shares    
Coupon, PIK 15.73% [3] 11.21% [1]
Spread 11.00% [3] 11.00% [1]
Shares 24,898 24,898
Amortized Cost $ 32.1 [5] $ 28.3 [2]
Fair Value $ 26.3 [5] $ 28.0 [2]
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A-2 preferred shares    
Coupon, PIK 15.73% [3] 11.25% [1]
Spread 11.00% [3] 11.00% [1]
Shares 8,963 8,963
Amortized Cost $ 11.4 [5] $ 10.0 [2]
Fair Value $ 9.4 [5] $ 10.1 [2]
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A-3 preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 11,952 11,952
Amortized Cost $ 13.5 [5] $ 12.1 [2]
Fair Value 11.1 [5] $ 13.4 [2]
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 1    
Principal [5],[9] 9.5  
Amortized Cost [5],[9] 9.3  
Fair Value [5],[9] 4.0  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 2    
Principal [5],[9] 2.1  
Amortized Cost [5],[9] 2.7  
Fair Value [5],[9] 0.9  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan    
Coupon [1]   5.65%
Spread [1]   5.50%
Principal 6.8 [5],[9] $ 6.8 [2],[14]
Amortized Cost 6.8 [5],[9] 6.8 [2],[14]
Fair Value 2.9 [5],[9] $ 6.2 [2],[14]
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan 2    
Principal [5],[9] 0.6  
Amortized Cost [5],[9] 0.2  
Fair Value [5],[9] $ 0.2  
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured loan    
Coupon 13.30% [3] 10.00% [1]
Coupon, PIK [3] 7.33%  
Spread 9.00% [3] 9.00% [1]
Principal $ 75.4 [4],[5] $ 67.9 [2],[7]
Amortized Cost 75.3 [4],[5] 67.8 [2],[7]
Fair Value $ 70.9 [4],[5] $ 67.3 [2],[7]
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured revolving loan    
Coupon 9.70% [3] 6.50% [1]
Spread 5.75% [3] 5.50% [1]
Principal $ 5.0 [4],[5] $ 2.3 [2],[7]
Amortized Cost 5.0 [4],[5] 2.3 [2],[7]
Fair Value $ 4.7 [4],[5] $ 2.3 [2],[7]
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, Membership interests    
Shares 279,392 279,392
Amortized Cost $ 2.9 [5] $ 2.9 [2]
Fair Value $ 2.9 [5] $ 11.5 [2]
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan    
Coupon 7.38% [3] 5.75% [1]
Spread 3.00% [3] 2.50% [1]
Principal $ 3.5 [5] $ 0.2 [2]
Amortized Cost 3.5 [5] 0.2 [2]
Fair Value $ 3.2 [5] $ 0.2 [2]
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan 2    
Coupon [1]   3.60%
Spread [1]   3.50%
Principal [2]   $ 2.5
Amortized Cost [2]   2.5
Fair Value [2]   $ 2.5
Investment, Identifier [Axis]: Chariot Buyer LLC, Second lien senior secured loan    
Coupon 11.13% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 134.4 [4],[5] $ 134.4 [2],[7]
Amortized Cost 134.4 [4],[5] 134.4 [2],[7]
Fair Value $ 126.3 [4],[5] $ 133.0 [2],[7]
Investment, Identifier [Axis]: Cheyenne Petroleum Company Limited Partnership, CPC 2001 LLC and Mill Shoals LLC, Second lien senior secured loan    
Coupon 13.69% [3] 10.00% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 49.3 [4],[5] $ 63.1 [2],[7]
Amortized Cost 49.3 [4],[5] 63.1 [2],[7]
Fair Value $ 47.8 [4],[5] $ 63.1 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan    
Coupon 15.48% [3] 11.75% [1]
Spread 10.75% [3] 10.75% [1]
Principal $ 68.2 [4],[5] $ 68.2 [2],[7]
Amortized Cost 68.0 [4],[5] 67.4 [2],[7]
Fair Value $ 66.9 [4],[5] $ 61.4 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 2    
Coupon 15.48% [3] 11.75% [1]
Spread 10.75% [3] 10.75% [1]
Principal $ 30.0 [4],[5] $ 15.2 [2],[7]
Amortized Cost 29.7 [4],[5] 15.2 [2],[7]
Fair Value $ 29.4 [4],[5] $ 13.6 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 3    
Coupon [3] 15.48%  
Coupon, PIK [1]   11.75%
Spread 10.75% [3] 10.75% [1]
Principal $ 20.0 [4],[5] $ 15.5 [2],[7]
Amortized Cost 19.7 [4],[5] 15.3 [2],[7]
Fair Value $ 19.6 [4],[5] $ 13.9 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 4    
Coupon 15.48% [3] 11.75% [1]
Spread 10.75% [3] 10.75% [1]
Principal $ 15.5 [4],[5] $ 20.0 [2],[7]
Amortized Cost 15.4 [4],[5] 18.9 [2],[7]
Fair Value $ 15.2 [4],[5] $ 18.0 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 5    
Coupon 15.23% [3] 11.75% [1]
Spread 10.50% [3] 10.75% [1]
Principal $ 12.2 [4],[5] $ 3.0 [2],[7]
Amortized Cost 12.2 [4],[5] 3.0 [2],[7]
Fair Value $ 11.9 [4],[5] $ 2.7 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 6    
Coupon 15.48% [3] 11.75% [1]
Spread 10.75% [3] 10.75% [1]
Principal $ 4.9 [4],[5] $ 4.9 [2],[7]
Amortized Cost 4.9 [4],[5] 4.9 [2],[7]
Fair Value $ 4.8 [4],[5] $ 4.4 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 7    
Coupon [3] 15.48%  
Coupon, PIK [1]   11.75%
Spread 10.75% [3] 10.75% [1]
Principal $ 3.0 [4],[5] $ 30.0 [2],[7]
Amortized Cost 3.0 [4],[5] 28.8 [2],[7]
Fair Value $ 3.0 [4],[5] $ 27.0 [2],[7]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 8    
Coupon [3] 15.48%  
Spread [3] 10.75%  
Principal [4],[5] $ 3.0  
Amortized Cost [4],[5] 3.0  
Fair Value [4],[5] $ 3.0  
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., Warrant    
Shares   718.66
Amortized Cost [2],[8]   $ 2.1
Fair Value [2],[8]   3.4
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., Warrants to purchase units of shares    
Shares 718.66  
Amortized Cost [5],[6] $ 2.1  
Fair Value [5],[6] 8.8  
Investment, Identifier [Axis]: CoLTs 2005-1 Ltd.    
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: CoLTs 2005-1 Ltd., Preferred shares    
Shares 360 360
Amortized Cost $ 0.0 [6] $ 0.0 [8]
Fair Value $ 0.0 [6] 0.0 [8]
Investment, Identifier [Axis]: CoLTs 2005-2 Ltd.    
Fair Value   $ 0.0
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Class A common units    
Shares 30,500 30,500
Amortized Cost $ 0.0 [5] $ 0.0 [2]
Fair Value $ 0.0 [5] $ 2.8 [2]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured loan    
Coupon 9.63% [3] 6.00% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 30.2 [4] $ 29.1 [2],[7]
Amortized Cost 30.2 [4] 29.1 [2],[7]
Fair Value $ 29.0 [4] $ 28.8 [2],[7]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured revolving loan    
Coupon 9.63% [3] 6.00% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 2.5 [4],[5] $ 0.6 [2],[7]
Amortized Cost 2.5 [4],[5] 0.6 [2],[7]
Fair Value $ 2.4 [4],[5] $ 0.6 [2],[7]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Preferred units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 3,020 3,020
Amortized Cost $ 3.3 [5] $ 3.1 [2]
Fair Value $ 4.0 [5] $ 0.3 [2]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Series A preferred shares    
Coupon [1]   10.75%
Coupon, PIK [3] 14.73%  
Spread 10.00% [3] 10.00% [1]
Shares 60,236 60,236
Amortized Cost $ 69.7 [5] $ 60.2 [2],[7]
Fair Value $ 69.7 [5] $ 60.2 [2],[7]
Investment, Identifier [Axis]: Color Intermediate, LLC First lien senior secured loan    
Coupon [3] 10.08%  
Spread [3] 5.50%  
Principal [4],[5] $ 20.3  
Amortized Cost [4],[5] 20.3  
Fair Value [4],[5] $ 19.5  
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., First lien senior secured loan    
Coupon 10.33% [3] 7.25% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 33.3 [4],[5] $ 92.8 [2],[7]
Amortized Cost 33.3 [4],[5] 92.8 [2],[7]
Fair Value $ 33.3 [4],[5] $ 92.8 [2],[7]
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., Second lien senior secured loan    
Coupon 13.00% [3] 13.00% [1]
Principal $ 19.9 [5] $ 19.9 [2]
Amortized Cost 19.9 [5] 19.9 [2]
Fair Value $ 19.5 [5] $ 19.9 [2]
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, Class A units    
Shares 500,000  
Amortized Cost [5] $ 5.0  
Fair Value [5] $ 6.4  
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien senior secured loan    
Coupon [3] 10.17%  
Spread [3] 5.75%  
Principal [4],[5] $ 10.6  
Amortized Cost [4],[5] 10.6  
Fair Value [4],[5] $ 10.4  
Investment, Identifier [Axis]: Compex Legal Services, Inc., First lien senior secured revolving loan    
Coupon [3] 9.51%  
Spread [3] 5.25%  
Principal [4],[5] $ 1.8  
Amortized Cost [4],[5] 1.7  
Fair Value [4],[5] $ 1.8  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan    
Coupon [3] 10.59%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.3  
Amortized Cost [4],[5] 0.3  
Fair Value [4],[5] $ 0.3  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 1    
Coupon [1]   7.00%
Spread [1]   5.75%
Principal [2],[7]   $ 2.6
Amortized Cost [2],[7]   2.6
Fair Value [2],[7]   $ 2.6
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 2    
Coupon [1]   8.00%
Spread [1]   4.75%
Principal [2],[7]   $ 0.1
Amortized Cost [2],[7]   0.1
Fair Value [2],[7]   $ 0.1
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 3    
Coupon [1]   7.00%
Spread [1]   5.75%
Principal [2],[7]   $ 0.6
Amortized Cost [2],[7]   0.6
Fair Value [2],[7]   $ 0.6
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured revolving loan    
Coupon 10.58% [3] 7.00% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.8 [4],[5] $ 0.3 [2],[7]
Amortized Cost 0.8 [4],[5] 0.3 [2],[7]
Fair Value $ 0.7 [4],[5] $ 0.3 [2],[7]
Investment, Identifier [Axis]: Computer Services, Inc., First lien senior secured loan    
Coupon [3] 11.15%  
Spread [3] 6.75%  
Principal [4],[5] $ 34.1  
Amortized Cost [4],[5] 34.1  
Fair Value [4],[5] $ 33.0  
Investment, Identifier [Axis]: Concert Golf Partners Holdco LLC, First lien senior secured revolving loan    
Coupon [1]   5.50%
Spread [1]   4.50%
Principal [2],[7]   $ 0.1
Amortized Cost [2],[7]   0.1
Fair Value [2],[7]   $ 0.1
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., Common units    
Shares   4,799,000
Amortized Cost [2],[8]   $ 4.8
Fair Value [2],[8]   $ 6.0
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   6.25%
Principal [2],[8]   $ 27.8
Amortized Cost [2],[8]   27.7
Fair Value [2],[8]   $ 27.5
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 2    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7],[8]   $ 32.9
Amortized Cost [2],[7],[8]   32.9
Fair Value [2],[7],[8]   $ 32.6
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 3    
Coupon [1]   8.00%
Spread [1]   4.75%
Principal [2],[7],[8]   $ 3.9
Amortized Cost [2],[7],[8]   3.9
Fair Value [2],[7],[8]   $ 3.8
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 4    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7],[8]   $ 11.3
Amortized Cost [2],[7],[8]   11.3
Fair Value [2],[7],[8]   $ 11.2
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., Common units    
Shares 4,799,000  
Amortized Cost [5],[6] $ 4.8  
Fair Value [5],[6] $ 6.5  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 1    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 11.7  
Amortized Cost [4],[5],[6] 11.7  
Fair Value [4],[5],[6] $ 11.4  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 2    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [5],[6] $ 74.8  
Amortized Cost [5],[6] 74.8  
Fair Value [5],[6] $ 72.6  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 3    
Coupon [3] 8.39%  
Spread [3] 6.25%  
Principal [4],[5],[6] $ 26.9  
Amortized Cost [4],[5],[6] 28.3  
Fair Value [4],[5],[6] $ 26.1  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured revolving loan    
Coupon [3] 8.32%  
Spread [3] 6.25%  
Principal [4],[5],[6] $ 0.8  
Amortized Cost [4],[5],[6] 0.8  
Fair Value [4],[5],[6] $ 0.8  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., Series A common units    
Shares 23,340  
Amortized Cost [5],[6] $ 0.2  
Fair Value [5],[6] $ 0.0  
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan    
Coupon 11.48% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 36.2 [4],[5] $ 36.5 [2],[7]
Amortized Cost 36.2 [4],[5] 36.5 [2],[7]
Fair Value $ 33.3 [4],[5] $ 36.5 [2],[7]
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan 2    
Coupon 11.48% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 5.4 [4],[5] $ 33.2 [2],[7]
Amortized Cost 5.4 [4],[5] 33.2 [2],[7]
Fair Value $ 4.9 [4],[5] $ 33.2 [2],[7]
Investment, Identifier [Axis]: Continental Cafe, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan    
Coupon [1]   8.00%
Spread [1]   7.00%
Principal [2],[7]   $ 15.7
Amortized Cost [2],[7]   15.7
Fair Value [2],[7]   $ 15.5
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan    
Coupon [3] 11.38%  
Spread [3] 7.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured revolving loan    
Coupon [3] 13.50%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.7  
Amortized Cost [4],[5] 0.7  
Fair Value [4],[5] $ 0.7  
Investment, Identifier [Axis]: Convera International Holdings Limited and Convera International Financial S.A R.L., First lien senior secured loan    
Coupon [3] 10.33%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 62.8  
Amortized Cost [4],[5],[6] 62.8  
Fair Value [4],[5],[6] $ 62.8  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan    
Coupon [1]   5.50%
Spread [1]   4.75%
Principal [7]   $ 2.7
Amortized Cost [7]   2.7
Fair Value [7]   $ 2.7
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 1    
Coupon [3] 9.48%  
Spread [3] 4.75%  
Principal [4],[5],[6] $ 2.7  
Amortized Cost [4],[5],[6] 2.7  
Fair Value [4],[5],[6] $ 2.6  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 2    
Coupon [3] 9.83%  
Spread [3] 5.25%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 3    
Coupon [3] 9.93%  
Spread [3] 5.25%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP, Limited partnership units    
Shares 59,665,989 59,665,989
Amortized Cost $ 59.7 [5] $ 59.7 [2]
Fair Value $ 48.8 [5] $ 77.9 [2]
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP, Second lien senior secured loan    
Coupon 10.94% [3] 7.00% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 155.7 [4],[5] $ 155.7 [2],[7]
Amortized Cost 155.7 [4],[5] 155.7 [2],[7]
Fair Value $ 129.2 [4],[5] $ 155.7 [2],[7]
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., Common equity    
Shares 190,143  
Amortized Cost [5],[6] $ 0.0  
Fair Value [5],[6] $ 0.0  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan    
Coupon [3] 10.31%  
Spread [3] 6.00%  
Principal [4],[5],[6] $ 6.2  
Amortized Cost [4],[5],[6] 6.2  
Fair Value [4],[5],[6] $ 6.2  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 2    
Coupon [3] 9.06%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 4.4  
Amortized Cost [4],[5],[6] 4.4  
Fair Value [4],[5],[6] $ 4.3  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 3    
Coupon [3] 11.06%  
Spread [3] 7.50%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 4    
Coupon [3] 9.06%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 6.3  
Amortized Cost [4],[5],[6] 6.3  
Fair Value [4],[5],[6] $ 6.2  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., Preferred equity    
Coupon, PIK [3] 9.00%  
Shares 198  
Amortized Cost [5],[6] $ 0.3  
Fair Value [5],[6] $ 0.7  
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., Common equity    
Shares   190,143
Amortized Cost [2],[8]   $ 0.0
Fair Value [2],[8]   $ 0.0
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan    
Coupon [1]   6.00%
Spread [1]   5.00%
Principal [7],[8]   $ 6.3
Amortized Cost [7],[8]   6.3
Fair Value [7],[8]   $ 6.3
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 2    
Coupon [1]   6.00%
Spread [1]   5.00%
Principal [7],[8]   $ 4.4
Amortized Cost [7],[8]   4.4
Fair Value [7],[8]   $ 4.4
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 3    
Coupon [1]   8.00%
Spread [1]   7.00%
Principal [2],[7],[8]   $ 1.1
Amortized Cost [2],[7],[8]   1.1
Fair Value [2],[7],[8]   $ 1.1
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., Preferred equity    
Coupon, PIK [1]   9.00%
Shares   198
Amortized Cost [2],[8]   $ 0.2
Fair Value [2],[8]   $ 0.6
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Class A-1 common stock    
Shares 1,360,100 1,360,100
Amortized Cost $ 13.6 [5] $ 13.6 [2]
Fair Value $ 15.2 [5] $ 13.3 [2]
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., First lien senior secured revolving loan    
Coupon 7.51% [3] 0.00% [1]
Spread [3] 3.25%  
Principal [5],[13] $ 21.9  
Amortized Cost 21.9 [5],[13] $ 0.0 [16]
Fair Value $ 19.7 [5],[13] $ 0.0 [16]
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Second lien senior secured loan    
Coupon 10.88% [3] 7.00% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 137.5 [4],[5] $ 137.5 [7]
Amortized Cost 137.5 [4],[5] 137.5 [7]
Fair Value $ 123.7 [4],[5] $ 135.4 [7]
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Series A preferred shares    
Coupon, PIK 10.50% [3] 10.50% [1]
Shares 116,413 116,413
Amortized Cost $ 131.8 [5] $ 119.0 [2]
Fair Value $ 109.4 [5] $ 119.0 [2]
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, Class A-2 units    
Shares 4,772  
Amortized Cost $ 4.8  
Fair Value $ 5.5  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured loan    
Coupon [3] 9.16%  
Spread [3] 4.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured revolving loan    
Coupon [3] 9.66%  
Spread [3] 5.25%  
Principal [4],[5] $ 1.5  
Amortized Cost [4],[5] 1.5  
Fair Value [4],[5] $ 1.5  
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP, Common units    
Shares   2,950,000
Amortized Cost [2]   $ 3.0
Fair Value [2]   $ 1.4
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP, First lien senior secured loan    
Coupon [1]   8.50%
Coupon, PIK [1]   4.50%
Spread [1]   7.50%
Principal [2],[7]   $ 12.4
Amortized Cost [2],[7]   12.4
Fair Value [2],[7]   $ 11.4
Investment, Identifier [Axis]: CrossCountry Mortgage, LLC, First lien senior secured loan    
Coupon 11.73% [3] 7.50% [1]
Spread 7.00% [3] 7.00% [1]
Principal $ 93.8 [4],[5] $ 93.8 [2],[7]
Amortized Cost 93.8 [4],[5] 93.8 [2],[7]
Fair Value $ 92.8 [4],[5] 92.8 [2],[7]
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, Class A shares    
Shares 176  
Amortized Cost [5] $ 1.8  
Fair Value [5] $ 1.9  
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, Common units    
Shares 28  
Amortized Cost [5] $ 0.3  
Fair Value [5] $ 0.3  
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, First lien senior secured loan    
Coupon [3] 10.11%  
Spread [3] 5.50%  
Principal [4],[5] $ 24.5  
Amortized Cost [4],[5] 24.5  
Fair Value [4],[5] $ 24.5  
Investment, Identifier [Axis]: Crown Health Care Laundry Services, LLC and Crown Laundry Holdings, LLC    
Fair Value   $ 0.0
Investment, Identifier [Axis]: DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A preferred shares    
Coupon, PIK [1]   10.50%
Shares   129,822
Amortized Cost [2]   $ 138.1
Fair Value [2]   $ 138.1
Investment, Identifier [Axis]: DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A units    
Shares   817,194
Amortized Cost [2]   $ 13.3
Fair Value [2]   $ 13.4
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC, First lien senior secured revolving loan    
Coupon 11.62% [3] 8.50% [1]
Spread 7.50% [3] 8.00% [1]
Principal $ 158.6 [4],[5],[6],[17] $ 146.4 [2],[7],[8],[18]
Amortized Cost 172.8 [4],[5],[6],[17] 149.9 [2],[7],[8],[18]
Fair Value $ 158.6 [4],[5],[6],[17] $ 146.4 [2],[7],[8],[18]
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC, First lien senior secured revolving loan, Secured borrowing    
Coupon 11.62% 8.50%
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan    
Coupon 9.44% [3] 8.50% [1]
Coupon, PIK [1]   1.50%
Spread 6.00% [3] 7.50% [1]
Principal $ 164.9 [4] $ 166.7 [7]
Amortized Cost 164.9 [4] 166.7 [7]
Fair Value $ 164.9 [4] $ 158.4 [7]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 2    
Coupon 10.38% [3] 8.50% [1]
Coupon, PIK [1]   1.50%
Spread 6.00% [3] 7.50% [1]
Principal $ 6.5 [4],[5] $ 4.3 [2],[7]
Amortized Cost 6.5 [4],[5] 4.3 [2],[7]
Fair Value $ 6.5 [4],[5] $ 4.1 [2],[7]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 3    
Coupon 10.38% [3] 8.50% [1]
Coupon, PIK [1]   1.50%
Spread 6.00% [3] 7.50% [1]
Principal $ 4.3 [4],[5] $ 5.0 [7]
Amortized Cost 4.3 [4],[5] 5.0 [7]
Fair Value $ 4.3 [4],[5] $ 4.7 [7]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 4    
Coupon [1]   8.50%
Coupon, PIK [1]   1.50%
Spread [1]   7.50%
Principal [7]   $ 0.7
Amortized Cost [7]   0.7
Fair Value [7]   $ 0.6
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., Common stock    
Shares 8,549 8,549
Amortized Cost $ 8.5 [5] $ 8.5 [2]
Fair Value $ 7.2 [5] $ 11.3 [2]
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan    
Coupon 10.47% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 28.0 [4],[5] $ 29.8 [7]
Amortized Cost 28.0 [4],[5] 29.8 [7]
Fair Value $ 26.8 [4],[5] $ 29.8 [7]
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan 2    
Coupon 10.47% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 25.8 [4],[5] $ 46.7 [7]
Amortized Cost 25.8 [4],[5] 46.7 [7]
Fair Value $ 24.8 [4],[5] $ 46.7 [7]
Investment, Identifier [Axis]: DS Admiral Bidco, LLC, First lien senior secured loan    
Coupon 10.16% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 11.9 [2],[7]
Amortized Cost 0.1 [4],[5] 11.6 [2],[7]
Fair Value $ 0.1 [4],[5] $ 11.9 [2],[7]
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., Class A common stock    
Shares 7,500 7,500
Amortized Cost $ 7.5 [5] $ 7.5 [2]
Fair Value $ 6.3 [5] $ 4.2 [2]
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., Class B common stock    
Shares 7,500 7,500
Amortized Cost $ 0.0 [5] $ 0.0 [2]
Fair Value $ 0.0 [5] $ 0.0 [2]
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan    
Coupon [1]   6.75%
Spread [1]   3.50%
Principal [2],[14]   $ 0.3
Amortized Cost [2],[14]   0.3
Fair Value [2],[14]   $ 0.3
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan 2    
Coupon [1]   4.65%
Spread [1]   4.50%
Principal [2],[14]   $ 4.8
Amortized Cost [2],[14]   4.8
Fair Value [2],[14]   $ 4.8
Investment, Identifier [Axis]: Datix Bidco Limited, First lien senior secured loan    
Coupon 8.95% [3] 4.18% [1]
Spread 4.50% [3] 4.00% [1]
Principal $ 4.3 [5],[6] $ 0.1 [2],[8]
Amortized Cost 4.2 [5],[6] 0.0 [2],[8]
Fair Value $ 4.2 [5],[6] $ 0.1 [2],[8]
Investment, Identifier [Axis]: Datix Bidco Limited, Second lien senior secured loan    
Coupon [3] 12.20%  
Spread [3] 7.75%  
Principal [5],[6] $ 0.7  
Amortized Cost [5],[6] 0.7  
Fair Value [5],[6] $ 0.7  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., First lien senior secured loan    
Coupon [3] 8.70%  
Spread [3] 4.00%  
Principal [5] $ 1.0  
Amortized Cost [5] 1.0  
Fair Value [5] $ 0.9  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Second lien senior secured loan    
Coupon [3] 11.70%  
Spread [3] 7.00%  
Principal [5] $ 11.0  
Amortized Cost [5] 10.3  
Fair Value [5] $ 10.7  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A preferred shares    
Coupon, PIK [3] 10.50%  
Shares 129,822  
Amortized Cost [5] $ 153.0  
Fair Value [5] $ 134.6  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A units    
Shares 817,194  
Amortized Cost [5] $ 13.3  
Fair Value [5] $ 12.5  
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., Common stock    
Shares 9,599 9,599
Amortized Cost $ 9.6 [5] $ 9.6 [2]
Fair Value $ 9.4 [5] $ 10.0 [2]
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured loan    
Coupon 10.73% [3] 9.00% [1]
Coupon, PIK 0.27% [3] 2.00% [1]
Spread 6.00% [3] 8.00% [1]
Principal $ 148.6 [4],[5] $ 148.5 [2],[7]
Amortized Cost 148.6 [4],[5] 148.5 [2],[7]
Fair Value $ 145.6 [4],[5] $ 148.5 [2],[7]
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured revolving loan    
Coupon 10.73% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 6.6 [4],[5] $ 2.4 [2],[7]
Amortized Cost 6.6 [4],[5] 2.4 [2],[7]
Fair Value $ 6.5 [4],[5] $ 2.4 [2],[7]
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, Class A units    
Shares 2,549,000  
Amortized Cost [5] $ 2.5  
Fair Value [5] $ 2.4  
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan    
Coupon 10.52% [3] 7.00% [1]
Spread 5.75% [3] 6.00% [1]
Principal $ 0.1 [4],[5] $ 37.3 [2],[7]
Amortized Cost 0.1 [4],[5] 37.3 [2],[7]
Fair Value $ 0.1 [4],[5] $ 36.9 [2],[7]
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan 2    
Coupon [3] 10.52%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Topco LLC, Class A units    
Shares   2,549,000
Amortized Cost [2]   $ 2.5
Fair Value [2]   $ 2.5
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [7]   $ 33.0
Amortized Cost [7]   32.4
Fair Value [7]   $ 33.0
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 1    
Coupon [3] 10.63%  
Spread [3] 6.25%  
Principal [4],[5] $ 35.9  
Amortized Cost [4],[5] 35.4  
Fair Value [4],[5] $ 35.2  
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 2    
Coupon 10.63% [3] 6.75% [1]
Spread 6.25% [3] 5.75% [1]
Principal $ 2.0 [4],[5] $ 8.9 [2],[7]
Amortized Cost 2.0 [4],[5] 8.9 [2],[7]
Fair Value $ 2.0 [4],[5] $ 8.9 [2],[7]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 3    
Coupon 10.13% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 11.4 [2],[7]
Amortized Cost 0.1 [4],[5] 11.3 [2],[7]
Fair Value $ 0.1 [4],[5] $ 11.4 [2],[7]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 4    
Coupon 10.13% [3] 7.25% [1]
Spread 5.75% [3] 6.25% [1]
Principal $ 0.1 [4],[5] $ 2.0 [2],[7]
Amortized Cost 0.1 [4],[5] 2.0 [2],[7]
Fair Value $ 0.1 [4],[5] $ 2.0 [2],[7]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured revolving loan    
Coupon 10.63% [3] 0.00% [1]
Spread [3] 6.25%  
Principal [4],[5],[13] $ 0.7  
Amortized Cost 0.6 [4],[5],[13] $ 0.0 [16]
Fair Value $ 0.7 [4],[5],[13] $ 0.0 [16]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., Preferred stock    
Coupon, PIK 10.50% [3] 10.50% [1]
Shares 13,140 13,140
Amortized Cost $ 15.0 [5] $ 13.5 [2]
Fair Value $ 13.8 [5] 13.8 [2]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., Common units    
Shares 600  
Principal [2]   600.0
Amortized Cost $ 0.6 [5] 0.6 [2]
Fair Value $ 1.2 [5] $ 1.0 [2]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan    
Coupon 10.03% [3] 6.65% [1]
Spread 5.65% [3] 5.65% [1]
Principal $ 15.8 [4],[5] $ 16.0 [7]
Amortized Cost 15.8 [4],[5] 16.0 [7]
Fair Value $ 15.8 [4],[5] $ 16.0 [7]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 2    
Coupon 10.03% [3] 6.65% [1]
Spread 5.65% [3] 5.65% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 3    
Coupon 10.03% [3] 6.65% [1]
Spread 5.65% [3] 5.65% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc., Preferred stock    
Coupon, PIK 13.50% [3] 13.50% [1]
Shares 29.53 29.53
Amortized Cost $ 42.4 [5] $ 37.0 [2]
Fair Value $ 41.6 [5] $ 37.9 [2]
Investment, Identifier [Axis]: Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc., Second lien senior secured loan    
Coupon 12.63% [3] 8.35% [1]
Spread 8.25% [3] 8.25% [1]
Principal $ 25.0 [5] $ 25.0
Amortized Cost 25.0 [5] 25.0
Fair Value $ 24.8 [5] $ 25.0
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured loan    
Coupon 10.69% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 40.0 [4],[5],[6] $ 72.0 [2],[7],[8]
Amortized Cost 42.2 [4],[5],[6] 70.9 [2],[7],[8]
Fair Value $ 40.0 [4],[5],[6] $ 70.9 [2],[7],[8]
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured revolving loan    
Coupon [3] 11.20%  
Spread [3] 4.75%  
Principal [4],[5],[6] $ 5.0  
Amortized Cost [4],[5],[6] 5.0  
Fair Value [4],[5],[6] $ 5.0  
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP, Common units    
Shares 9,773,000 9,773,000
Amortized Cost $ 9.8 $ 9.8
Fair Value $ 9.0 $ 8.6
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP, First lien senior secured loan    
Coupon 11.65% [3] 7.50% [1]
Spread 7.00% [3] 6.50% [1]
Principal $ 23.2 [4],[5] $ 25.7 [7]
Amortized Cost 23.2 [4],[5] 25.7 [7]
Fair Value $ 23.2 [4],[5] $ 25.4 [7]
Investment, Identifier [Axis]: EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P., Partnership units    
Shares 5,034,483 5,034,483
Amortized Cost $ 3.2 [5],[6] $ 3.2 [2],[8]
Fair Value $ 11.7 [5],[6] $ 9.8 [2],[8]
Investment, Identifier [Axis]: EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P., Second lien senior secured loan    
Coupon 11.23% [3] 7.00% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 177.9 [4],[5] $ 177.9 [2],[7]
Amortized Cost 177.9 [4],[5] 177.9 [2],[7]
Fair Value $ 176.1 [4],[5] $ 176.1 [2],[7]
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan    
Coupon [1]   5.50%
Spread [1]   4.50%
Principal [2],[7]   $ 0.2
Amortized Cost [2],[7]   0.2
Fair Value [2],[7]   $ 0.2
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 1    
Coupon [3] 10.01%  
Spread [3] 5.75%  
Principal [4],[5] $ 5.6  
Amortized Cost [4],[5] 5.6  
Fair Value [4],[5] $ 5.6  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 2    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.25% [1]
Principal $ 0.4 [4],[5] $ 0.3 [2],[7]
Amortized Cost 0.4 [4],[5] 0.3 [2],[7]
Fair Value $ 0.4 [4],[5] $ 0.3 [2],[7]
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 3    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 4    
Coupon [3] 10.11%  
Spread [3] 5.38%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured revolving loan    
Coupon [1]   5.50%
Spread [1]   4.50%
Principal [2],[7]   $ 0.2
Amortized Cost [2],[7]   0.2
Fair Value [2],[7]   $ 0.2
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured loan    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.2 [4],[5] $ 30.5 [2],[7]
Amortized Cost 0.2 [4],[5] 30.5 [2],[7]
Fair Value $ 0.2 [4],[5] $ 30.5 [2],[7]
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured revolving loan    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.8 [4],[5],[13] $ 0.9 [2],[7],[14]
Amortized Cost 0.8 [4],[5],[13] 0.9 [2],[7],[14]
Fair Value 0.8 [4],[5],[13] 0.9 [2],[7],[14]
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC    
Fair Value $ 3.1 $ 2.8
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A units    
Shares   3,500,000
Amortized Cost [2]   $ 3.5
Fair Value [2]   2.8
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A-1 units    
Shares 96,897  
Amortized Cost [5] $ 2.3  
Fair Value [5] $ 3.0  
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A-2 units    
Shares 3,500  
Amortized Cost $ 3.5  
Fair Value $ 0.1  
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P., First lien senior secured loan    
Coupon [3] 10.07%  
Spread [3] 6.25%  
Principal [4],[5] $ 6.8  
Amortized Cost [4],[5] 6.8  
Fair Value [4],[5] $ 6.7  
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P., Limited partner interests    
Shares 6,046,628  
Amortized Cost $ 6.0  
Fair Value $ 6.0  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan    
Coupon, PIK [3] 15.00%  
Principal [5],[6] $ 25.5  
Amortized Cost [5],[6] 25.5  
Fair Value [5],[6] $ 23.9  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan 2    
Coupon [3] 12.30%  
Principal [5],[6] $ 41.7  
Amortized Cost [5],[6] 41.7  
Fair Value [5],[6] 40.5  
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC    
Fair Value $ 0.0 $ 23.1
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, Class A common units    
Shares   67,972
Amortized Cost [2]   $ 16.4
Fair Value [2]   0.0
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured loan    
Principal [2],[10]   26.3
Amortized Cost [2],[10]   25.5
Fair Value [2],[10]   18.4
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured revolving loan    
Principal [2],[10]   6.7
Amortized Cost [2],[10]   6.5
Fair Value [2],[10]   $ 4.7
Investment, Identifier [Axis]: Eckler Purchaser LLC, Class A common units    
Shares 67,972  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc, Preferred equity    
Shares 4,599  
Amortized Cost [5] $ 4.6  
Fair Value [5] $ 5.3  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [7]   $ 62.0
Amortized Cost [7]   61.9
Fair Value [7]   $ 61.9
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 1    
Coupon [3] 10.74%  
Spread [3] 6.00%  
Principal [4] $ 50.0  
Amortized Cost [4] 50.0  
Fair Value [4] $ 48.5  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 2    
Coupon 10.68% [3] 6.50% [1]
Spread 6.00% [3] 5.50% [1]
Principal $ 11.3 [4],[5] $ 20.5 [2],[7]
Amortized Cost 11.3 [4],[5] 20.5 [2],[7]
Fair Value $ 11.0 [4],[5] $ 20.5 [2],[7]
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 3    
Coupon [3] 10.68%  
Spread [3] 6.00%  
Principal [4],[5] $ 5.7  
Amortized Cost [4],[5] 5.7  
Fair Value [4],[5] $ 5.6  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured revolving loan    
Coupon 10.51% [3] 6.50% [1]
Spread 6.00% [3] 5.50% [1]
Principal $ 4.1 [4],[5] $ 2.3 [2],[7]
Amortized Cost 4.1 [4],[5] 2.3 [2],[7]
Fair Value $ 4.0 [4],[5] $ 2.3 [2],[7]
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., Preferred equity    
Shares   4,599
Amortized Cost   $ 4.6
Fair Value   5.5
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC    
Amortized Cost   14.2
Fair Value   $ 14.2
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 8.7
Amortized Cost [2],[7]   8.7
Fair Value [2],[7]   $ 8.7
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 1    
Coupon [3] 10.86%  
Spread [3] 6.00%  
Principal [4],[5] $ 10.2  
Amortized Cost [4],[5] 10.2  
Fair Value [4],[5] $ 10.0  
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 2    
Coupon 9.47% [3] 6.50% [1]
Spread 6.00% [3] 5.50% [1]
Principal $ 9.1 [4],[5] $ 0.3 [2],[7]
Amortized Cost 9.1 [4],[5] 0.3 [2],[7]
Fair Value $ 9.0 [4],[5] $ 0.3 [2],[7]
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 3    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 5.2
Amortized Cost [2],[7]   5.2
Fair Value [2],[7]   $ 5.2
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured revolving loan    
Coupon [3] 10.36%  
Spread [3] 6.00%  
Principal [4],[5],[13] $ 1.4  
Amortized Cost [4],[5],[13] 1.4  
Fair Value [4],[5],[13] $ 1.4  
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured loan    
Coupon 11.84% [3] 8.75% [1]
Coupon, PIK 6.02% [3] 5.12% [1]
Spread 7.75% [3] 7.75% [1]
Principal $ 48.4 [4],[5] $ 46.0 [2],[7]
Amortized Cost 48.3 [4],[5] 46.0 [2],[7]
Fair Value $ 43.6 [4],[5] $ 42.4 [2],[7]
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured revolving loan    
Coupon [3] 12.15%  
Coupon, PIK [3] 5.97%  
Spread [3] 7.75%  
Principal [4],[5] $ 6.8  
Amortized Cost [4],[5] 6.8  
Fair Value [4],[5] $ 6.1  
Investment, Identifier [Axis]: Ensemble RCM, LLC, First lien senior secured loan    
Coupon [3] 9.19%  
Spread [3] 5.00%  
Principal [4] $ 2.5  
Amortized Cost [4] 2.5  
Fair Value [4] $ 2.5  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 4.6
Amortized Cost [2],[7]   4.6
Fair Value [2],[7]   $ 4.6
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 1    
Coupon [3] 6.69%  
Spread [3] 5.50%  
Principal [5] $ 5.6  
Amortized Cost [5] 5.9  
Fair Value [5] $ 5.5  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 2    
Coupon 9.98% [3] 5.75% [1]
Spread 5.25% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 6.0 [2]
Amortized Cost 0.1 [4],[5] 6.0 [2]
Fair Value $ 0.1 [4],[5] $ 6.0 [2]
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 3    
Coupon 9.98% [3] 6.50% [1]
Spread 5.25% [3] 5.50% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, Class A units    
Shares 6,447 6,099
Amortized Cost $ 22.9 [5] $ 20.9 [2]
Fair Value $ 42.0 [5] $ 34.4 [2]
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan    
Coupon [3] 9.49%  
Spread [3] 5.75%  
Principal [4],[5] $ 78.1  
Amortized Cost [4],[5] 78.1  
Fair Value [4],[5] $ 76.5  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 1    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 72.7
Amortized Cost [2],[7]   72.7
Fair Value [2],[7]   $ 72.7
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 2    
Coupon 9.49% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 48.2 [4],[5] $ 80.4 [2],[7]
Amortized Cost 48.2 [4],[5] 80.4 [2],[7]
Fair Value $ 47.2 [4],[5] $ 80.4 [2],[7]
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 3    
Coupon [3] 9.71%  
Spread [3] 5.75%  
Principal [4],[5] $ 19.6  
Amortized Cost [4],[5] 19.6  
Fair Value [4],[5] $ 19.2  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 4    
Coupon [3] 14.94%  
Spread [3] 10.19%  
Principal [4],[5] $ 5.6  
Amortized Cost [4],[5] 5.6  
Fair Value [4],[5] 5.5  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value 0.0 [15] 0.0 [16]
Investment, Identifier [Axis]: European Capital UK SME Debt LP    
Fair Value $ 26.5 $ 26.9
Investment, Identifier [Axis]: European Capital UK SME Debt LP, Limited partnership interest    
Shares (as a percent) 45.00% 45.00%
Amortized Cost $ 18.0 [6] $ 18.8 [8],[19]
Fair Value $ 26.5 [6] $ 26.9 [8],[19]
Investment, Identifier [Axis]: Everspin Technologies, Inc., Warrant to purchase shares of common stock    
Shares   18,461
Amortized Cost [2]   $ 0.4
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Everspin Technologies, Inc., Warrant to purchase up to 18,461 shares of common stock    
Shares 18,461  
Amortized Cost $ 0.4  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Evolent Health LLC, First lien senior secured loan    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 7.8  
Amortized Cost [4],[5],[6] 7.8  
Fair Value [4],[5],[6] $ 7.7  
Investment, Identifier [Axis]: Excelligence Holdings Corp., First lien senior secured loan    
Coupon 10.73% [3] 7.00% [1]
Coupon, PIK [1]   4.50%
Spread 6.00% [3] 6.00% [1]
Principal $ 9.2 [4],[5] $ 9.6 [2],[7]
Amortized Cost 9.2 [4],[5] 9.6 [2],[7]
Fair Value $ 9.2 [4],[5] $ 9.3 [2],[7]
Investment, Identifier [Axis]: Explorer Investor, Inc, First lien senior secured loan    
Coupon [3] 10.15%  
Spread [3] 5.75%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 0.9  
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan    
Coupon [1]   8.50%
Spread [1]   7.50%
Principal [2],[7]   $ 16.6
Amortized Cost [2],[7]   16.6
Fair Value [2],[7]   $ 16.4
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan 2    
Coupon [1]   8.50%
Spread [1]   7.50%
Principal [2],[7]   $ 1.1
Amortized Cost [2],[7]   1.1
Fair Value [2],[7]   $ 1.0
Investment, Identifier [Axis]: Extrahop Networks, Inc., First lien senior secured loan    
Coupon [3] 12.23%  
Spread [3] 7.50%  
Principal [4],[5] $ 20.2  
Amortized Cost [4],[5] 20.2  
Fair Value [4],[5] $ 20.2  
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan    
Coupon [1]   7.50%
Spread [1]   6.50%
Principal [2],[7]   $ 3.2
Amortized Cost [2],[7]   3.2
Fair Value [2],[7]   $ 3.2
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 1    
Coupon [3] 9.13%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 2    
Coupon 10.96% [3] 7.50% [1]
Spread 5.75% [3] 6.50% [1]
Principal $ 0.1 [4],[5] $ 1.4 [2],[7]
Amortized Cost 0.1 [4],[5] 1.4 [2],[7]
Fair Value $ 0.1 [4],[5] $ 1.4 [2],[7]
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured revolving loan    
Coupon [1]   7.50%
Spread [1]   6.50%
Principal [2],[7]   $ 1.5
Amortized Cost [2],[7]   1.5
Fair Value [2],[7]   $ 1.5
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, Class A units    
Shares 113,219 113,219
Amortized Cost $ 11.1 [5] $ 11.1 [2]
Fair Value $ 31.2 [5] $ 19.2 [2]
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured loan    
Coupon 9.49% [3] 5.36% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2]
Amortized Cost 0.1 [4],[5] 0.1 [2]
Fair Value 0.1 [4],[5] $ 0.1 [2]
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] $ 0.0 [16]
Investment, Identifier [Axis]: Faraday Buyer, LLC, First lien senior secured loan    
Coupon [3] 11.32%  
Spread [3] 7.00%  
Principal [4],[5] $ 52.2  
Amortized Cost [4],[5] 52.2  
Fair Value [4],[5] $ 50.6  
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Second lien senior secured loan    
Coupon, PIK [1]   14.00%
Principal [2]   $ 80.3
Amortized Cost [2]   79.9
Fair Value [2]   $ 80.3
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Warrant to purchase shares of Class A common stock    
Shares   633,008
Amortized Cost [2]   $ 2.3
Fair Value [2]   $ 1.2
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Warrant to purchase up to 633,008 shares of Class A common stock    
Shares [5] 633,008  
Amortized Cost [5] $ 2.3  
Fair Value [5] $ 0.0  
Investment, Identifier [Axis]: Ferrellgas, L.P. and Ferrellgas Partners L.P., Class B units    
Shares 59,428  
Amortized Cost $ 14.9  
Fair Value $ 14.9  
Investment, Identifier [Axis]: Ferrellgas, L.P. and Ferrellgas Partners L.P., Senior preferred units    
Coupon [3] 896.00%  
Shares 59,422  
Amortized Cost $ 59.5  
Fair Value $ 60.0  
Investment, Identifier [Axis]: Ferrellgas, L.P., Senior preferred units    
Coupon [1]   8.96%
Shares   55,708
Amortized Cost   $ 55.7
Fair Value   $ 55.7
Investment, Identifier [Axis]: First Insight, Inc., Warrant to purchase units of Series C preferred stock    
Shares 122,827 122,827
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan    
Coupon 9.88% [3] 5.50% [1]
Spread 5.50% [3] 4.75% [1]
Principal $ 29.6 [4],[5] $ 30.0 [7]
Amortized Cost 29.6 [4],[5] 30.0 [7]
Fair Value $ 29.6 [4],[5] $ 29.3 [7]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan 2    
Coupon 9.88% [3] 5.50% [1]
Spread 5.50% [3] 4.75% [1]
Principal $ 1.1 [4],[5] $ 1.1 [7]
Amortized Cost 1.1 [4],[5] 1.1 [7]
Fair Value $ 1.1 [4],[5] $ 1.1 [7]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan    
Coupon 9.88% [3] 5.50% [1]
Spread 5.50% [3] 4.75% [1]
Principal $ 6.5 [4],[5],[13] $ 4.9 [2],[7]
Amortized Cost 6.5 [4],[5],[13] 4.9 [2],[7]
Fair Value $ 6.5 [4],[5],[13] $ 4.8 [2],[7]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan 2    
Coupon [3] 11.50%  
Spread [3] 4.50%  
Principal [4],[5],[13] $ 0.5  
Amortized Cost [4],[5],[13] 0.5  
Fair Value [4],[5],[13] $ 0.5  
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., Series A preferred stock    
Shares 1,272 1,272
Amortized Cost $ 0.7 [5] $ 0.7 [2]
Fair Value $ 1.5 [5] $ 1.1 [2]
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan    
Coupon 9.32% [3] 5.75% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 0.4 [4],[5] $ 4.3 [2],[7]
Amortized Cost 0.4 [4],[5] 4.3 [2],[7]
Fair Value $ 0.4 [4],[5] $ 4.3 [2],[7]
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan 2    
Coupon [3] 9.38%  
Spread [3] 5.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Florida Food Products, LLC, Second lien senior secured loan    
Coupon 12.38% [3] 8.75% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 71.8 [4],[5] $ 71.8 [2],[7]
Amortized Cost 71.8 [4],[5] 71.8 [2],[7]
Fair Value $ 70.4 [4],[5] $ 71.1 [2],[7]
Investment, Identifier [Axis]: Flow Control Solutions, Inc., First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [7]   $ 10.8
Amortized Cost [7]   10.8
Fair Value [7]   $ 10.8
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan    
Coupon, PIK [1]   10.50%
Spread [1]   9.50%
Principal [2],[7]   $ 18.7
Amortized Cost [2],[7]   18.4
Fair Value [2],[7]   $ 18.5
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 1    
Coupon [3] 14.23%  
Coupon, PIK [3] 9.50%  
Spread [3] 9.50%  
Principal [4],[5] $ 23.8  
Amortized Cost [4],[5] 23.5  
Fair Value [4],[5] $ 23.8  
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 2    
Coupon, PIK [3] 13.73%  
Spread [3] 9.00%  
Principal [4],[5] $ 12.6  
Amortized Cost [4],[5] 12.6  
Fair Value [4],[5] $ 12.6  
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured loan    
Coupon 10.15% [3] 7.38% [1]
Spread 5.50% [3] 6.38% [1]
Principal $ 12.8 [4],[5] $ 24.9 [7]
Amortized Cost 12.6 [4],[5] 24.4 [7]
Fair Value $ 12.8 [4],[5] $ 24.8 [7]
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan    
Coupon 10.68% [3] 6.50% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 112.6 [4],[5] $ 169.5 [2],[7]
Amortized Cost 112.6 [4],[5] 169.5 [2],[7]
Fair Value $ 111.5 [4],[5] $ 167.7 [2],[7]
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 2    
Coupon [3] 10.68%  
Spread [3] 6.00%  
Principal [4],[5] $ 30.3  
Amortized Cost [4],[5] 30.3  
Fair Value [4],[5] $ 30.0  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 3    
Coupon [3] 10.68%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.1  
Amortized Cost [4],[5] 1.1  
Fair Value [4],[5] $ 1.1  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured revolving loan    
Coupon [3] 10.32%  
Spread [3] 6.00%  
Principal [4] $ 8.6  
Amortized Cost [4] 8.6  
Fair Value [4] $ 8.5  
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, Class A preferred units    
Coupon, PIK [1]   9.00%
Shares   4,574
Amortized Cost   $ 6.2
Fair Value   $ 6.7
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, Class B common units    
Shares   499,050
Amortized Cost   $ 0.0
Fair Value   $ 7.9
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   5.25%
Principal [7]   $ 14.9
Amortized Cost [7]   14.9
Fair Value [7]   $ 14.9
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan 2    
Coupon [1]   6.25%
Spread [1]   5.25%
Principal [2],[7]   $ 0.1
Amortized Cost [2],[7]   0.1
Fair Value [2],[7]   $ 0.1
Investment, Identifier [Axis]: GF Parent LLC, Class A common units    
Shares 60,000  
Amortized Cost $ 0.1  
Fair Value $ 0.0  
Investment, Identifier [Axis]: GF Parent LLC, Class A preferred units    
Shares 2,940  
Amortized Cost $ 2.9  
Fair Value $ 0.0  
Investment, Identifier [Axis]: GF Parent LLC, Class B common units    
Shares 0.26  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC, Class A units    
Shares 14,853,569 14,013,303
Amortized Cost $ 15.7 [5] $ 14.0 [2]
Fair Value $ 27.8 [5] $ 32.2 [2]
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC, Second lien senior secured loan    
Coupon 11.48% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 114.0 [4],[5] $ 114.0 [2],[7]
Amortized Cost 114.0 [4],[5] 114.0 [2],[7]
Fair Value $ 111.8 [4],[5] $ 114.0 [2],[7]
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   6.00%
Principal [2],[7]   $ 35.1
Amortized Cost [2],[7]   35.1
Fair Value [2],[7]   $ 34.8
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 1    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 10.2  
Amortized Cost [4],[5] 10.2  
Fair Value [4],[5] $ 10.0  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 2    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.8  
Amortized Cost [4],[5] 1.8  
Fair Value [4],[5] $ 1.7  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured revolving loan    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.4  
Amortized Cost [4],[5] 0.4  
Fair Value [4],[5] $ 0.4  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I, Common units    
Shares 13,736,365  
Amortized Cost [5],[6] $ 8.3  
Fair Value [5],[6] $ 8.7  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I, First lien senior secured loan    
Coupon [3] 10.65%  
Spread [3] 6.75%  
Principal [4],[5],[6] $ 30.8  
Amortized Cost [4],[5],[6] 30.5  
Fair Value [4],[5],[6] $ 30.8  
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Common stock    
Shares 2,088,478 2,088,478
Amortized Cost $ 19.8 $ 19.8
Fair Value $ 26.1 $ 18.3
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Warrant to purchase common stock    
Shares   1,088,780
Amortized Cost [2]   $ 1.6
Fair Value [2]   $ 1.9
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Warrant to purchase units of common stock    
Shares 1,088,780  
Amortized Cost [5] $ 1.6  
Fair Value [5] $ 1.9  
Investment, Identifier [Axis]: GSV PracticeTek Holdings, LLC, Class A units    
Coupon, PIK [3] 8.00%  
Shares 12,827,482  
Amortized Cost [5] $ 1.1  
Fair Value [5] $ 14.0  
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured loan    
Coupon 9.98% [3] 6.00% [1]
Spread 5.25% [3] 5.25% [1]
Principal $ 34.2 [4],[5] $ 59.1 [2],[7]
Amortized Cost 34.2 [4],[5] 59.1 [2],[7]
Fair Value 32.8 [4],[5] $ 58.5 [2],[7]
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] 0.0 [16]
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured loan    
Principal [2],[10]   21.6
Amortized Cost [2],[10]   0.0
Fair Value [2],[10]   0.0
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured revolving loan    
Principal [2],[10]   7.5
Amortized Cost [2],[10]   0.0
Fair Value [2],[10]   $ 0.0
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class A common units    
Shares   60,000
Amortized Cost [2]   $ 0.1
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class A preferred units    
Shares   2,940
Amortized Cost [2]   $ 2.9
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class B common units    
Shares   0.26
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Class A common stock    
Shares 8.39 8.39
Amortized Cost $ 0.8 [5] $ 0.8 [2]
Fair Value $ 1.4 [5] $ 0.9 [2]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan    
Coupon [1]   5.25%
Spread [1]   4.50%
Principal [2],[7]   $ 9.1
Amortized Cost [2],[7]   9.1
Fair Value [2],[7]   $ 9.0
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 1    
Coupon [3] 7.92%  
Spread [3] 3.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 2    
Coupon 8.42% [3] 4.22% [1]
Spread 4.25% [3] 4.00% [1]
Principal $ 0.1 [5] $ 0.2 [2]
Amortized Cost 0.1 [5] 0.2 [2]
Fair Value $ 0.1 [5] $ 0.2 [2]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured revolving loan    
Coupon 7.92% [3] 4.22% [1]
Spread 3.75% [3] 4.00% [1]
Principal $ 1.5 [5] $ 1.5 [2]
Amortized Cost 1.5 [5] 1.5 [2]
Fair Value $ 1.5 [5] $ 1.5 [2]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan    
Coupon [1]   8.25%
Spread [1]   7.50%
Principal [2],[7]   $ 21.1
Amortized Cost [2],[7]   21.1
Fair Value [2],[7]   $ 20.7
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 1    
Coupon [3] 11.24%  
Spread [3] 7.50%  
Principal [5] $ 32.4  
Amortized Cost [5] 32.4  
Fair Value [5] $ 31.7  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 2    
Coupon 11.24% [3] 7.63% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 21.1 [4],[5] $ 32.4 [2]
Amortized Cost 21.1 [4],[5] 32.4 [2]
Fair Value $ 20.7 [4],[5] $ 31.4 [2]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 3    
Coupon 11.24% [3] 7.70% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 7.5 [5] $ 7.5 [2]
Amortized Cost 7.5 [5] 7.5 [2]
Fair Value $ 7.4 [5] $ 7.3 [2]
Investment, Identifier [Axis]: Genomatica, Inc., Warrant to purchase 322,422 shares of Series D preferred stock    
Shares 322,422  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Genomatica, Inc., Warrant to purchase shares of Series D preferred stock    
Shares   322,422
Amortized Cost   $ 0.0
Fair Value   $ 0.0
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 1    
Coupon [3] 8.63%  
Spread [3] 4.25%  
Principal [4],[5],[11] $ 12.1  
Amortized Cost [4],[5],[11] 11.3  
Fair Value [4],[5],[11] $ 8.5  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 2    
Coupon [3] 8.42%  
Spread [3] 4.25%  
Principal [4],[5],[11] $ 25.7  
Amortized Cost [4],[5],[11] 23.8  
Fair Value [4],[5],[11] $ 17.9  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Second lien senior secured loan    
Coupon 11.10% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 95.4 [4],[5] $ 95.4 [2],[7]
Amortized Cost 95.4 [4],[5] 95.4 [2],[7]
Fair Value $ 71.6 [4],[5] $ 94.5 [2],[7]
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase units of common stock 1    
Shares   115,733
Amortized Cost [2]   $ 0.9
Fair Value [2]   $ 3.0
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase units of common stock 2    
Shares   1,926.57
Amortized Cost [2]   $ 0.1
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase up to 1,926.57 units of common stock    
Shares 1,927  
Amortized Cost [5] $ 0.1  
Fair Value [5] $ 0.0  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase up to 115,733 units of common stock    
Shares 115,733  
Amortized Cost [5] $ 0.9  
Fair Value [5] $ 1.8  
Investment, Identifier [Axis]: Global Music Rights, LLC, First lien senior secured loan    
Coupon 10.23% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 22.3 [2],[7]
Amortized Cost 0.1 [4],[5] 22.3 [2],[7]
Fair Value $ 0.1 [4],[5] $ 22.1 [2],[7]
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, First lien senior secured loan    
Coupon [3] 11.80%  
Spread [3] 7.38%  
Principal [4],[5] $ 17.7  
Amortized Cost [4],[5] 17.7  
Fair Value [4],[5] $ 17.4  
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, Series E-1 preferred stock    
Coupon, PIK [3] 6.00%  
Shares 166,059  
Amortized Cost [5] $ 14.2  
Fair Value [5] $ 14.2  
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, Warrant to purchase up to 43,154 shares of Series E-1 preferred stock    
Shares 43,154  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 1    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 2    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 3    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 4    
Coupon [3] 10.43%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, Preferred units    
Coupon, PIK [3] 14.00%  
Shares 1,828,644  
Amortized Cost $ 57.5  
Fair Value $ 57.5  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, Senior subordinated loan    
Coupon, PIK [3] 10.50%  
Principal [5] $ 43.5  
Amortized Cost [5] 43.5  
Fair Value [5] $ 40.0  
Investment, Identifier [Axis]: Green Street Parent, LLC and Green Street Intermediate Holdings, LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.75%
Principal [2],[7]   $ 23.7
Amortized Cost [2],[7]   23.7
Fair Value [2],[7]   $ 23.7
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, Common units    
Shares 5,827 5,827
Amortized Cost $ 5.8 $ 5.8
Fair Value $ 3.5 $ 6.8
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan    
Coupon 8.07% [3] 6.00% [1]
Spread 3.69% [3] 5.00% [1]
Principal $ 26.4 [5],[11] $ 75.0 [2],[7]
Amortized Cost 23.8 [5],[11] 74.6 [2],[7]
Fair Value $ 23.3 [5],[11] $ 75.0 [2],[7]
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 2    
Coupon [3] 8.38%  
Spread [3] 4.00%  
Principal [5],[11] $ 3.3  
Amortized Cost [5],[11] 3.1  
Fair Value [5],[11] $ 3.0  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 3    
Coupon [3] 9.38%  
Spread [3] 5.00%  
Principal [4],[5],[11] $ 0.1  
Amortized Cost [4],[5],[11] 0.1  
Fair Value [4],[5],[11] $ 0.1  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, Second lien senior secured loan    
Coupon 11.38% [3] 7.10% [1]
Spread 7.00% [3] 7.00% [1]
Principal $ 73.0 [5] $ 73.0 [2]
Amortized Cost 73.0 [5] 73.0 [2]
Fair Value $ 62.8 [5] $ 73.0 [2]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, Class A units    
Shares 16,980 16,980
Amortized Cost $ 1.7 [5] $ 1.7 [2]
Fair Value $ 3.1 [5] $ 2.3 [2]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan    
Coupon 10.42% [3] 6.00% [1]
Spread 6.00% [3] 5.25% [1]
Principal $ 60.5 [4],[5] $ 61.0 [7]
Amortized Cost 60.5 [4],[5] 61.0 [7]
Fair Value $ 60.5 [4],[5] $ 61.0 [7]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 2    
Coupon 11.41% [3] 6.00% [1]
Spread 6.75% [3] 5.25% [1]
Principal $ 7.8 [4],[5] $ 0.1 [2],[7]
Amortized Cost 7.8 [4],[5] 0.1 [2],[7]
Fair Value $ 7.8 [4],[5] 0.1 [2],[7]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 3    
Coupon [3] 10.42%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] 0.1  
Investment, Identifier [Axis]: HCI Equity, LLC    
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: HCI Equity, LLC, Member interest    
Shares (as a percent) 100.00% 100.00%
Amortized Cost $ 0.0 [6],[11] $ 0.0 [8],[12]
Fair Value $ 0.0 [6],[11] $ 0.0 [8],[12]
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, Class A units    
Shares 25,490 25,490
Amortized Cost $ 2.5 [5] $ 2.5 [2]
Fair Value $ 2.2 [5] $ 2.9 [2]
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured loan    
Coupon 10.19% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 5.8 [4],[5] $ 2.6 [2],[7]
Amortized Cost 5.8 [4],[5] 2.6 [2],[7]
Fair Value $ 5.7 [4],[5] $ 2.6 [2],[7]
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured revolving loan    
Coupon 9.94% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 2.8 [4],[5] $ 0.5 [2],[7]
Amortized Cost 2.8 [4],[5] 0.5 [2],[7]
Fair Value $ 2.7 [4],[5] $ 0.5 [2],[7]
Investment, Identifier [Axis]: Halcon Holdings, LLC, First lien senior secured loan    
Coupon 12.20% [3] 7.17% [1]
Spread 7.50% [3] 7.00% [1]
Principal $ 13.4 [5] $ 19.0 [2]
Amortized Cost 13.2 [5] 18.7 [2]
Fair Value 13.4 [5] 18.9 [2]
Investment, Identifier [Axis]: Halex Holdings, Inc.    
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: Halex Holdings, Inc., Common stock    
Shares 51,853 51,853
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 1    
Coupon [3] 10.43%  
Spread [3] 6.25%  
Principal [4],[5] $ 54.2  
Amortized Cost [4],[5] 54.2  
Fair Value [4],[5] $ 53.2  
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 2    
Coupon [3] 13.93%  
Spread [3] 9.75%  
Principal [4],[5] $ 110.6  
Amortized Cost [4],[5] 110.6  
Fair Value [4],[5] $ 106.8  
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured loan    
Coupon 10.64% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 1.1 [4],[5] $ 22.7 [2],[7]
Amortized Cost 1.1 [4],[5] 22.7 [2],[7]
Fair Value $ 1.1 [4],[5] $ 22.5 [2],[7]
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured revolving loan    
Coupon [1]   6.25%
Spread [1]   5.50%
Principal [2],[7],[14]   $ 5.9
Amortized Cost [2],[7],[14]   5.9
Fair Value [2],[7],[14]   $ 5.8
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured loan    
Coupon 11.74% [3] 7.25% [1]
Spread 7.00% [3] 6.25% [1]
Principal $ 87.2 [4],[5] $ 79.2 [2],[7]
Amortized Cost 87.2 [4],[5] 79.2 [2],[7]
Fair Value 87.2 [4],[5] $ 79.2 [2],[7]
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] $ 0.0 [16]
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, First lien senior secured loan    
Coupon 9.88% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 40.9 [2],[7]
Amortized Cost 0.1 [4],[5] 40.9 [2],[7]
Fair Value 0.1 [4],[5] 40.5 [2],[7]
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC    
Fair Value   $ 69.4
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC    
Fair Value $ 209.6  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, Class A1 units    
Shares 76,446,352  
Amortized Cost $ 77.1  
Fair Value $ 124.0  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, Class A2 units    
Shares 4,072,278  
Amortized Cost $ 3.8  
Fair Value $ 6.3  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, First lien senior secured loan    
Coupon [3] 11.00%  
Coupon, PIK [3] 8.54%  
Principal [4],[5] $ 79.3  
Amortized Cost [4],[5] 79.3  
Fair Value [4],[5] $ 79.3  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC, Class A1 units    
Shares   100
Amortized Cost   $ 23.5
Fair Value   $ 30.4
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC, First lien senior secured loan    
Coupon [1]   8.00%
Spread [1]   7.00%
Principal [2],[7]   $ 39.0
Amortized Cost [2],[7]   39.0
Fair Value [2],[7]   $ 39.0
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan    
Coupon 10.73% [3] 6.75% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 22.8 [4],[5] $ 55.0 [2],[7]
Amortized Cost 22.8 [4],[5] 55.0 [2],[7]
Fair Value $ 22.6 [4],[5] $ 54.5 [2],[7]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 2    
Coupon 9.99% [3] 6.75% [1]
Spread 5.75% [3] 6.00% [1]
Principal $ 14.7 [4],[5] $ 10.4 [2],[7]
Amortized Cost 14.7 [4],[5] 10.4 [2],[7]
Fair Value $ 14.4 [4],[5] $ 10.3 [2],[7]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 3    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 12.3  
Amortized Cost [4],[5] 12.3  
Fair Value [4],[5] $ 12.1  
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series A common units    
Coupon, PIK 10.00% [3] 10.00% [1]
Shares 4,649,000 4,649,000
Amortized Cost $ 5.5 [5] $ 5.0 [2]
Fair Value $ 7.1 [5] $ 11.1 [2]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series A preferred units    
Coupon, PIK 10.00% [3] 10.00% [1]
Shares 110,561,971 96,763,329
Amortized Cost $ 125.5 [5] $ 101.1 [2]
Fair Value $ 112.9 [5] $ 101.2 [2]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series C common units    
Coupon, PIK 10.00% [3] 10.00% [1]
Shares 5,666,050 4,979,318
Amortized Cost $ 0.7 [5] $ 0.2 [2]
Fair Value $ 8.6 [5] $ 11.9 [2]
Investment, Identifier [Axis]: HighTower Holding, LLC, Senior subordinated loan    
Coupon [3] 675.00%  
Principal [5],[6] $ 8.1  
Amortized Cost [5],[6] 6.7  
Fair Value [5],[6] $ 6.7  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, Co-invest units    
Shares 59,230 59,230
Amortized Cost $ 5.9 [5] $ 5.9 [2]
Fair Value $ 3.8 [5] $ 3.5 [2]
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured loan    
Coupon [3] 8.88%  
Spread [3] 4.50%  
Principal [4],[5],[11] $ 11.9  
Amortized Cost [4],[5],[11] 11.3  
Fair Value [4],[5],[11] $ 10.9  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured revolving loan    
Coupon 8.13% [3] 3.85% [1]
Spread 3.75% [3] 3.75% [1]
Principal $ 1.0 [5],[13] $ 5.9 [2],[14]
Amortized Cost 1.0 [5],[13] 5.9 [2],[14]
Fair Value $ 0.9 [5],[13] $ 5.8 [2],[14]
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, Second lien senior secured loan    
Coupon 12.72% [3] 8.75% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 70.4 [4],[5] $ 70.4 [2],[7]
Amortized Cost 70.4 [4],[5] 70.4 [2],[7]
Fair Value $ 64.0 [4],[5] $ 66.1 [2],[7]
Investment, Identifier [Axis]: Hometown Food Company, First lien senior secured revolving loan    
Coupon [3] 9.39%  
Spread [3] 5.00%  
Principal [4],[5],[13] $ 0.8  
Amortized Cost [4],[5],[13] 0.8  
Fair Value [4],[5],[13] $ 0.8  
Investment, Identifier [Axis]: Honor Technology, Inc., First lien senior secured loan    
Coupon 14.38% [3] 11.00% [1]
Spread 10.00% [3] 10.00% [1]
Principal $ 2.5 [4],[5] $ 2.5 [2],[7]
Amortized Cost 2.4 [4],[5] 2.4 [2],[7]
Fair Value $ 2.3 [4],[5] $ 2.5 [2],[7]
Investment, Identifier [Axis]: Honor Technology, Inc., Warrant to purchase shares of series D-2 preferred stock    
Shares   133,333
Amortized Cost [2]   $ 0.1
Fair Value [2]   $ 0.1
Investment, Identifier [Axis]: Honor Technology, Inc., Warrant to purchase up to 133,333 units of series D-2 preferred stock    
Shares 133,333  
Amortized Cost [5] $ 0.1  
Fair Value [5] $ 0.0  
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, Common units    
Shares 4,243,657  
Amortized Cost [5] $ 8.8  
Fair Value [5] $ 5.5  
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured loan    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 60.4 [4],[5] $ 105.8 [2],[7]
Amortized Cost 60.4 [4],[5] 105.8 [2],[7]
Fair Value $ 56.1 [4],[5] $ 104.8 [2],[7]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured revolving loan    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 9.4 [4],[5] $ 1.6 [2],[7]
Amortized Cost 9.4 [4],[5] 1.6 [2],[7]
Fair Value $ 8.7 [4],[5] $ 1.4 [2],[7]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, Senior subordinated loan    
Coupon, PIK 10.00% [3] 10.00% [1]
Principal $ 99.5 [5] $ 90.2 [2]
Amortized Cost 99.5 [5] 90.2 [2]
Fair Value $ 82.6 [5] $ 88.8 [2]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP, Company units    
Shares   4,243,657
Amortized Cost [2]   $ 8.8
Fair Value [2]   $ 8.8
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 1    
Coupon [3] 9.65%  
Spread [3] 5.25%  
Principal [4],[5] $ 23.5  
Amortized Cost [4],[5] 23.5  
Fair Value [4],[5] $ 23.3  
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 2    
Coupon [3] 9.71%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.4  
Amortized Cost [4],[5] 0.4  
Fair Value [4],[5] 0.4  
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Class A-1 common units    
Shares   90,500
Amortized Cost [2]   $ 9.1
Fair Value [2]   $ 26.1
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., First lien senior secured loan    
Coupon [1]   4.35%
Spread [1]   4.25%
Principal   $ 42.3
Amortized Cost   41.9
Fair Value   $ 42.3
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Second lien senior secured loan    
Coupon [1]   8.10%
Spread [1]   8.00%
Principal [2]   $ 86.8
Amortized Cost [2]   85.9
Fair Value [2]   $ 86.8
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Series A-1 preferred shares    
Coupon, PIK [1]   11.50%
Spread [1]   10.50%
Shares   46,900
Amortized Cost [2],[7]   $ 65.3
Fair Value [2],[7]   $ 66.0
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P, First lien senior secured revolving loan    
Principal [4],[5] 0.0  
Amortized Cost [4],[5] 0.0  
Fair Value [4],[5] $ 0.0  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P., Class A units    
Shares 10,000  
Amortized Cost [5] $ 10.0  
Fair Value [5] $ 12.5  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P., First lien senior secured loan    
Coupon [3] 10.63%  
Spread [3] 6.25%  
Principal [4],[5] $ 3.5  
Amortized Cost [4],[5] 3.5  
Fair Value [4],[5] $ 3.5  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured loan    
Coupon [3] 10.08%  
Spread [3] 5.50%  
Principal [4],[5] $ 35.0  
Amortized Cost [4],[5] 35.0  
Fair Value [4],[5] $ 34.7  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan    
Coupon [3] 12.00%  
Spread [3] 4.50%  
Principal [4],[5] $ 3.0  
Amortized Cost [4],[5] 3.0  
Fair Value [4],[5] $ 2.9  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 2    
Coupon [3] 9.88%  
Spread [3] 5.50%  
Principal [4] $ 1.1  
Amortized Cost [4] 1.1  
Fair Value [4] $ 1.1  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 3    
Coupon [3] 12.00%  
Spread [3] 4.50%  
Principal [4],[5] $ 0.8  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] $ 0.8  
Investment, Identifier [Axis]: IV Rollover Holdings, LLC, Class B units    
Shares 170,490 170,490
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.1 [2]
Investment, Identifier [Axis]: IV Rollover Holdings, LLC, Class X units    
Shares 5,000,000 5,000,000
Amortized Cost $ 2.0 [5] $ 2.1 [2]
Fair Value 2.1 [5] $ 2.2 [2]
Investment, Identifier [Axis]: IfByPhone Inc., Warrant to purchase shares of Series C preferred stock    
Shares   124,300
Amortized Cost [2]   $ 0.1
Fair Value [2]   0.0
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation    
Fair Value $ 47.8 $ 53.0
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Class A common stock    
Shares 48,082 48,082
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.1 $ 0.2
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Class B common stock    
Shares 431,055 431,055
Amortized Cost $ 0.1 $ 0.1
Fair Value $ 1.3 $ 1.4
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Senior subordinated loan    
Coupon 14.00% [3] 14.00% [1]
Principal $ 16.6 [5] $ 16.6 [2]
Amortized Cost 16.5 [5] 16.6 [2]
Fair Value $ 16.6 [5] $ 16.6 [2]
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Series A preferred stock    
Coupon, PIK [3] 8.00%  
Shares 73,804,135 73,804,135
Amortized Cost $ 1.5 $ 1.2
Fair Value $ 29.8 $ 34.8
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan    
Coupon 13.98% [3] 8.75% [1]
Coupon, PIK [3] 1.50%  
Spread 9.25% [3] 7.75% [1]
Principal $ 102.7 [4],[5] $ 103.3 [2],[7]
Amortized Cost 102.7 [4],[5] 103.3 [2],[7]
Fair Value $ 92.4 [4],[5] $ 95.1 [2],[7]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 2    
Coupon 12.48% [3] 8.75% [1]
Coupon, PIK [3] 0.27%  
Spread 7.75% [3] 7.75% [1]
Principal $ 14.1 [4],[5] $ 14.1 [2],[7]
Amortized Cost 14.1 [4],[5] 14.1 [2],[7]
Fair Value $ 12.6 [4],[5] $ 13.0 [2],[7]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 3    
Coupon 12.48% [3] 8.75% [1]
Coupon, PIK [3] 0.27%  
Spread 7.75% [3] 7.75% [1]
Principal $ 5.0 [4],[5] $ 1.3 [2],[7]
Amortized Cost 5.0 [4],[5] 1.3 [2],[7]
Fair Value $ 4.5 [4],[5] $ 1.2 [2],[7]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 4    
Coupon 13.98% [3] 8.75% [1]
Coupon, PIK [3] 0.30%  
Spread 9.25% [3] 7.75% [1]
Principal $ 1.3 [4],[5] $ 5.0 [2],[7]
Amortized Cost 1.3 [4],[5] 5.0 [2],[7]
Fair Value $ 1.1 [4],[5] $ 4.6 [2],[7]
Investment, Identifier [Axis]: Imprivata, Inc., Second lien senior secured loan    
Coupon [3] 10.57%  
Spread [3] 6.25%  
Principal [4],[5] $ 16.1  
Amortized Cost [4],[5] 15.9  
Fair Value [4],[5] $ 15.1  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P., Class A units    
Shares 9,524,000  
Amortized Cost [5] $ 9.5  
Fair Value [5] $ 9.5  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P., First lien senior secured loan    
Coupon [3] 11.40%  
Spread [3] 6.75%  
Principal [4],[5] $ 11.4  
Amortized Cost [4],[5] 11.4  
Fair Value [4],[5] $ 11.1  
Investment, Identifier [Axis]: Inmar, Inc., Second lien senior secured loan    
Coupon 12.38% [3] 9.00% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 28.3 [4],[5] $ 28.3 [2],[7]
Amortized Cost 28.2 [4],[5] 28.1 [2],[7]
Fair Value $ 26.6 [4],[5] $ 28.3 [2],[7]
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 0.5
Amortized Cost [2],[7]   0.5
Fair Value [2],[7]   $ 0.5
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 2    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 16.2
Amortized Cost [2],[7]   16.2
Fair Value [2],[7]   $ 16.0
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 3    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 7.9
Amortized Cost [2],[7]   7.9
Fair Value [2],[7]   $ 7.9
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 4    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 7.6
Amortized Cost [2],[7]   7.6
Fair Value [2],[7]   $ 7.5
Investment, Identifier [Axis]: Insightful Science, Preferred units    
Coupon, PIK [1]   14.00%
Shares   1,828,645
Amortized Cost   $ 50.5
Fair Value   $ 50.5
Investment, Identifier [Axis]: Insightful Science, Senior subordinated loan    
Coupon, PIK [1]   10.50%
Principal [2]   $ 39.2
Amortized Cost [2]   39.2
Fair Value [2]   $ 38.8
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Common stock    
Shares   4
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Common stock 2    
Shares   16
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., First lien senior secured loan    
Coupon [1]   10.50%
Spread [1]   9.00%
Principal [2],[7]   $ 4.0
Amortized Cost [2],[7]   4.0
Fair Value [2],[7]   $ 4.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Senior preferred series A-1 shares    
Shares   151,056
Amortized Cost [2]   $ 98.2
Fair Value [2]   $ 36.4
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series B preferred stock    
Shares   348,615
Amortized Cost [2]   $ 1.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series B preferred stock 2    
Shares   1,401,385
Amortized Cost [2]   $ 4.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series C preferred stock    
Shares   517,942
Amortized Cost [2]   $ 0.1
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series C preferred stock 2    
Shares   1,994,644
Amortized Cost [2]   $ 0.5
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC, First lien senior secured loan    
Coupon [3] 11.33%  
Spread [3] 7.00%  
Principal [4],[5] $ 17.6  
Amortized Cost [4],[5] 17.6  
Fair Value [4],[5] $ 17.1  
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC, Limited partnership interests    
Shares 246,143  
Amortized Cost $ 1.7  
Fair Value 1.7  
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   5.50%
Principal [7],[8]   $ 14.8
Amortized Cost [7],[8]   14.8
Fair Value [7],[8]   $ 14.8
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan 2    
Coupon [1]   6.25%
Spread [1]   5.50%
Principal [2],[7],[8]   $ 10.8
Amortized Cost [2],[7],[8]   10.8
Fair Value [2],[7],[8]   $ 10.8
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured revolving loan    
Coupon [1]   6.25%
Spread [1]   5.50%
Principal [2],[7],[8]   $ 6.2
Amortized Cost [2],[7],[8]   6.2
Fair Value [2],[7],[8]   6.2
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P.    
Fair Value $ 2,201.1 $ 935.8
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P., Member interest    
Shares (as a percent) 100.00% [6] 100.00%
Amortized Cost $ 1,547.5 [6] $ 765.0 [8]
Fair Value $ 1,701.1 [6] $ 919.8 [8]
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P., Senior subordinated loan    
Coupon 11.01% [3] 7.25% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 500.0 [4],[6] $ 16.0 [7],[8]
Amortized Cost 500.0 [4],[6] 16.0 [7],[8]
Fair Value 500.0 [4],[6] 16.0 [7],[8]
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured loan    
Principal 40.9 [5],[9] 37.2 [2],[10]
Amortized Cost 31.4 [5],[9] 31.7 [2],[10]
Fair Value 22.1 [5],[9] 26.5 [2],[10]
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured revolving loan    
Principal 4.8 [5],[9] 4.4 [2],[10]
Amortized Cost 3.7 [5],[9] 3.8 [2],[10]
Fair Value $ 2.6 [5],[9] $ 3.1 [2],[10]
Investment, Identifier [Axis]: JWC/KI Holdings, LLC, Membership units    
Shares 5,000 5,000
Amortized Cost $ 5.0 [5] $ 5.0 [2]
Fair Value $ 9.0 [5] 7.7 [2]
Investment, Identifier [Axis]: Javlin Three LLC, Javlin Four LLC, and Javlin Five LLC, First lien senior secured loan    
Principal [2],[8],[10]   15.7
Amortized Cost [2],[8],[10]   12.6
Fair Value [2],[8],[10]   $ 0.4
Investment, Identifier [Axis]: Jenny C Acquisition, Inc., Senior subordinated loan    
Coupon, PIK 8.00% [3] 8.00% [1]
Principal $ 1.6 [5] $ 1.4 [2]
Amortized Cost 1.6 [5] 1.4 [2]
Fair Value $ 1.6 [5] $ 1.4 [2]
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   5.25%
Principal [7]   $ 14.7
Amortized Cost [7]   14.7
Fair Value [7]   $ 14.7
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured revolving loan    
Coupon [1]   6.25%
Spread [1]   5.25%
Principal [2],[7]   $ 2.8
Amortized Cost [2],[7]   2.8
Fair Value [2],[7]   2.8
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., First lien senior secured loan    
Coupon [3] 10.65%  
Coupon, PIK [3] 4.50%  
Spread [3] 6.00%  
Principal [4],[5] $ 19.2  
Amortized Cost [4],[5] 18.3  
Fair Value [4],[5] $ 18.8  
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., Series A convertible preferred stock    
Shares 144,211  
Amortized Cost [5] $ 4.3  
Fair Value [5] $ 5.5  
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., Warrant to purchase up to 76,491 shares of common stock    
Shares 76,491  
Amortized Cost [5] $ 1.0  
Fair Value [5] 1.3  
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC)    
Fair Value $ 0.0 0.3
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC), Equity interests    
Amortized Cost [2],[8]   0.0
Fair Value [2],[8]   $ 0.0
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC), First lien senior secured loan    
Coupon [1]   4.13%
Spread [1]   4.00%
Principal [2],[8]   $ 0.3
Amortized Cost [2],[8]   0.3
Fair Value [2],[8]   $ 0.3
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, Common units    
Shares 799,000 799,000
Amortized Cost $ 0.8 [5] $ 0.8 [2]
Fair Value $ 2.3 [5] $ 1.6 [2]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan    
Coupon 9.73% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 50.4 [4],[5] $ 0.6 [2],[7]
Amortized Cost 50.4 [4],[5] 0.6 [2],[7]
Fair Value $ 50.4 [4],[5] $ 0.6 [2],[7]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 2    
Coupon 9.73% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 2.3 [4],[5] $ 51.0 [7]
Amortized Cost 2.3 [4],[5] 51.0 [7]
Fair Value $ 2.3 [4],[5] $ 51.0 [7]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 3    
Coupon 9.54% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 0.2 [4],[5] $ 0.2 [2],[7]
Amortized Cost 0.2 [4],[5] 0.2 [2],[7]
Fair Value $ 0.2 [4],[5] $ 0.2 [2],[7]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: KBHS Acquisition, LLC (d/b/a Alita Care, LLC), First lien senior secured revolving loan    
Coupon [3] 9.72%  
Coupon, PIK [3] 1.00%  
Spread [3] 5.00%  
Principal [4],[5] $ 3.2  
Amortized Cost [4],[5] 3.2  
Fair Value [4],[5] $ 3.1  
Investment, Identifier [Axis]: KBHS Acquisition, LLC, (d/b/a/ Alita Care, LLC) First lien senior secured revolving loan    
Coupon [1]   6.00%
Coupon, PIK [1]   1.00%
Spread [1]   5.00%
Principal [2],[7]   $ 0.8
Amortized Cost [2],[7]   0.8
Fair Value [2],[7]   $ 0.8
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, First lien senior secured loan    
Coupon [1]   4.75%
Spread [1]   3.75%
Principal [7]   $ 29.1
Amortized Cost [7]   28.9
Fair Value [7]   $ 27.6
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, Second lien senior secured loan    
Coupon [1]   8.75%
Spread [1]   7.75%
Principal [2],[7]   $ 35.7
Amortized Cost [2],[7]   35.7
Fair Value [2],[7]   $ 32.0
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan    
Coupon [3] 9.92%  
Spread [3] 5.50%  
Principal [4] $ 5.6  
Amortized Cost [4] 5.6  
Fair Value [4] $ 5.5  
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan 2    
Coupon [3] 11.42%  
Spread [3] 7.00%  
Principal [4],[5] $ 1.3  
Amortized Cost [4],[5] 1.3  
Fair Value [4],[5] $ 1.3  
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, Class A units    
Shares 13,292 13,292
Amortized Cost $ 1.1 $ 1.1
Fair Value $ 5.2 $ 0.9
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan    
Coupon 9.92% [3] 7.00% [1]
Spread 5.50% [3] 6.00% [1]
Principal $ 12.6 [4],[5] $ 12.6 [7]
Amortized Cost 12.6 [4],[5] 12.6 [7]
Fair Value $ 12.6 [4],[5] $ 12.3 [7]
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan 2    
Coupon 9.92% [3] 7.00% [1]
Spread 5.50% [3] 6.00% [1]
Principal $ 3.3 [4],[5] $ 3.4 [7]
Amortized Cost 3.3 [4],[5] 3.4 [7]
Fair Value $ 3.3 [4],[5] $ 3.3 [7]
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc., First lien senior secured loan    
Coupon [3] 10.33%  
Spread [3] 5.75%  
Principal [4],[5] $ 167.0  
Amortized Cost [4],[5] 167.0  
Fair Value [4],[5] $ 162.0  
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc., Preferred stock    
Coupon, PIK [3] 11.75%  
Shares 38,797  
Amortized Cost [5] $ 41.2  
Fair Value [5] $ 40.0  
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan    
Coupon 10.41% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 56.8 [4],[5] $ 60.8 [2],[7]
Amortized Cost 56.6 [4],[5] 60.5 [2],[7]
Fair Value $ 51.1 [4],[5] $ 60.8 [2],[7]
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan 2    
Coupon 10.41% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 21.1 [2],[7]
Amortized Cost 0.1 [4],[5] 21.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 21.1 [2],[7]
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., Class A units    
Shares 4,549,000 4,549,000
Amortized Cost $ 4.5 [5] $ 4.5 [2]
Fair Value $ 7.0 [5] $ 5.3 [2]
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured loan    
Coupon 8.98% [3] 5.25% [1]
Spread 4.25% [3] 4.25% [1]
Principal $ 40.6 [4],[5] $ 41.1 [7]
Amortized Cost 40.6 [4],[5] 41.1 [7]
Fair Value 39.8 [4],[5] $ 41.1 [7]
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] $ 0.0 [16]
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan    
Coupon, PIK 10.00% [3] 10.00% [1]
Principal $ 60.0 [5] $ 54.3 [2]
Amortized Cost 57.6 [5] 51.2 [2]
Fair Value $ 58.8 [5] $ 52.7 [2]
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan 2    
Coupon, PIK 10.00% [3] 10.00% [1]
Principal $ 8.0 [5] $ 7.2 [2]
Amortized Cost 8.0 [5] 7.2 [2]
Fair Value $ 7.8 [5] $ 7.0 [2]
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Warrant to purchase Class C interests    
Shares   24.7581
Amortized Cost [2]   $ 3.6
Fair Value [2]   $ 4.2
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Warrant to purchase up to 24.7581 Class C interests    
Shares 24.7581  
Amortized Cost [5] $ 3.6  
Fair Value [5] $ 8.3  
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P., First lien senior secured loan    
Coupon [3] 10.73%  
Spread 6.50%  
Principal $ 35.7  
Amortized Cost 35.7  
Fair Value $ 34.6  
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P., Limited partnership units    
Shares 9,674,000  
Amortized Cost $ 9.7  
Fair Value $ 9.7  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP, Class A units    
Coupon, PIK [3] 8.00%  
Shares 5,098,000  
Amortized Cost [5] $ 5.2  
Fair Value [5] $ 5.4  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP, First lien senior secured loan    
Coupon [3] 10.44%  
Spread [3] 6.25%  
Principal [4],[5] $ 8.5  
Amortized Cost [4],[5] 8.5  
Fair Value [4],[5] $ 8.3  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Membership units    
Shares 3,275,000 3,275,000
Amortized Cost $ 3.3 [6] $ 3.3 [8]
Fair Value $ 3.0 [6] $ 3.5 [8]
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan    
Coupon [1]   10.50%
Principal [2],[8]   $ 37.0
Amortized Cost [2],[8]   37.0
Fair Value [2],[8]   $ 37.0
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 1    
Coupon [3] 10.50%  
Principal [5],[6] $ 3.0  
Amortized Cost [5],[6] 3.0  
Fair Value [5],[6] $ 3.0  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 2    
Coupon 10.50% [3] 10.50% [1]
Principal $ 37.0 [5],[6] $ 3.0 [2],[8]
Amortized Cost 37.0 [5],[6] 3.0 [2],[8]
Fair Value $ 36.6 [5],[6] $ 3.0 [2],[8]
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan    
Coupon 10.59% [3] 7.00% [1]
Spread 6.38% [3] 6.00% [1]
Principal $ 21.2 [4],[5] $ 6.9 [2],[7]
Amortized Cost 21.2 [4],[5] 6.9 [2],[7]
Fair Value $ 21.6 [4],[5] $ 6.8 [2],[7]
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 2    
Coupon [3] 10.89%  
Spread [3] 6.38%  
Principal [4],[5] $ 6.7  
Amortized Cost [4],[5] 6.7  
Fair Value [4],[5] $ 6.8  
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 3    
Coupon [3] 10.42%  
Spread [3] 6.38%  
Principal [4],[5] $ 6.1  
Amortized Cost [4],[5] 6.1  
Fair Value [4],[5] $ 6.2  
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, Membership interest    
Shares 2,771,000 2,771,000
Amortized Cost $ 2.8 $ 2.8
Fair Value $ 15.5 $ 2.8
Investment, Identifier [Axis]: LTG Acquisition, Inc., Class A membership units    
Shares 5,000 5,000
Amortized Cost $ 5.1 $ 5.1
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, Class A units    
Shares 3,099,335 3,099,335
Amortized Cost $ 4.6 [5] $ 4.6 [2]
Fair Value $ 4.5 [5] $ 4.1 [2]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [7]   $ 21.6
Amortized Cost [7]   21.6
Fair Value [7]   $ 21.6
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 1    
Coupon [3] 9.98%  
Spread [3] 5.75%  
Principal [4],[5] $ 23.6  
Amortized Cost [4],[5] 24.1  
Fair Value [4],[5] $ 22.7  
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 2    
Coupon 8.73% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 16.7 [4] $ 25.5 [7]
Amortized Cost 16.7 [4] 24.3 [7]
Fair Value $ 16.0 [4] $ 25.5 [7]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 3    
Coupon 9.55% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 4.4 [4],[5] $ 0.1 [2],[7]
Amortized Cost 4.4 [4],[5] 0.1 [2],[7]
Fair Value $ 4.2 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 4    
Coupon 8.73% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 10.7 [2],[7]
Amortized Cost 0.1 [4],[5] 10.7 [2],[7]
Fair Value $ 0.1 [4],[5] $ 10.7 [2],[7]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured revolving loan    
Coupon [3] 12.25%  
Spread [3] 4.75%  
Principal [4],[5] $ 8.8  
Amortized Cost [4],[5] 8.8  
Fair Value [4],[5] $ 8.4  
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, Common units    
Shares   46,990
Amortized Cost [2]   $ 4.7
Fair Value [2]   $ 6.2
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured loan    
Coupon, PIK [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 51.2
Amortized Cost [2],[7]   51.2
Fair Value [2],[7]   $ 51.2
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured revolving loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 3.6
Amortized Cost [2],[7]   3.6
Fair Value [2],[7]   $ 3.6
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, Second lien senior secured loan    
Coupon, PIK [1]   11.75%
Spread [1]   10.75%
Principal [2],[7]   $ 40.1
Amortized Cost [2],[7]   40.1
Fair Value [2],[7]   $ 40.1
Investment, Identifier [Axis]: LeanTaas Holdings, Inc., First lien senior secured loan    
Coupon [3] 12.08%  
Spread [3] 7.50%  
Principal [4],[5] $ 31.8  
Amortized Cost [4],[5] 31.8  
Fair Value [4],[5] $ 31.2  
Investment, Identifier [Axis]: Len the Plumber, LLC, LTP Neffsville, LLC, LTP of NJ, LLC, and LTP LSI, LLC, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 9.1
Amortized Cost [2],[7]   9.1
Fair Value [2],[7]   $ 9.0
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured loan    
Coupon [3] 12.54%  
Spread [3] 7.50%  
Principal [4],[5] $ 16.2  
Amortized Cost [4],[5] 16.2  
Fair Value [4],[5] $ 15.8  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured revolving loan    
Coupon [3] 12.54%  
Spread [3] 7.50%  
Principal [4],[5] $ 0.7  
Amortized Cost [4],[5] 0.7  
Fair Value [4],[5] $ 0.7  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., Limited partnership interests    
Shares 1,972,732  
Amortized Cost $ 2.0  
Fair Value $ 2.0  
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured loan    
Coupon 9.40% [3] 5.75% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 1.0 [5] $ 1.0 [2],[7]
Amortized Cost 1.0 [5] 1.0 [2],[7]
Fair Value $ 0.9 [5] $ 1.0 [2],[7]
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured revolving loan    
Coupon [1]   4.14%
Spread [1]   4.00%
Principal [2]   $ 1.8
Amortized Cost [2]   1.8
Fair Value [2]   $ 1.8
Investment, Identifier [Axis]: Lido Advisors, LLC, First lien senior secured revolving loan    
Coupon [3] 9.05%  
Spread [3] 4.50%  
Principal [4] $ 0.4  
Amortized Cost [4] 0.4  
Fair Value [4] $ 0.4  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., Class B common units    
Shares 32,105  
Amortized Cost [5],[6] $ 0.0  
Fair Value [5],[6] $ 0.0  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., First lien senior secured loan    
Coupon [3] 11.15%  
Spread [3] 6.75%  
Principal [4],[5],[6] $ 18.6  
Amortized Cost [4],[5],[6] 18.6  
Fair Value [4],[5],[6] $ 18.2  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., Preferred units    
Coupon, PIK [3] 8.00%  
Shares 3,178  
Amortized Cost [5],[6] $ 3.2  
Fair Value [5],[6] $ 3.2  
Investment, Identifier [Axis]: Lifescan Global Corporation, First lien senior secured loan    
Coupon [3] 9.74%  
Spread [3] 6.00%  
Principal [5] $ 14.3  
Amortized Cost [5] 13.7  
Fair Value [5] $ 10.3  
Investment, Identifier [Axis]: Lifescan Global Corporation, Second lien senior secured loan    
Coupon [3] 13.24%  
Spread [3] 9.50%  
Principal [5] $ 0.2  
Amortized Cost [5] 0.2  
Fair Value [5] $ 0.2  
Investment, Identifier [Axis]: Lower ACS, Inc., First lien senior secured loan    
Coupon [3] 10.13%  
Spread [3] 5.75%  
Principal [4],[5] $ 5.4  
Amortized Cost [4],[5] 5.4  
Fair Value [4],[5] $ 5.4  
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., First lien senior secured loan    
Coupon 8.23% [3] 4.50% [1]
Spread 3.50% [3] 3.50% [1]
Principal $ 14.3 [4],[5] $ 11.7 [2],[7]
Amortized Cost 13.4 [4],[5] 11.0 [2],[7]
Fair Value $ 12.5 [4],[5] $ 10.9 [2],[7]
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan    
Coupon 13.73% [3] 10.00% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 68.4 [4],[5] $ 68.5 [2],[7]
Amortized Cost 68.4 [4],[5] 68.5 [2],[7]
Fair Value $ 63.6 [4],[5] $ 61.6 [2],[7]
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan 2    
Coupon 13.73% [3] 10.00% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 23.6 [4],[5] $ 23.6 [2],[7]
Amortized Cost 23.6 [4],[5] 23.6 [2],[7]
Fair Value $ 22.0 [4],[5] $ 21.3 [2],[7]
Investment, Identifier [Axis]: MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc., Class A units    
Shares   1,438,643
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.6
Investment, Identifier [Axis]: MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc., First lien senior secured loan    
Coupon [1]   8.50%
Spread [1]   7.00%
Principal [7]   $ 110.2
Amortized Cost [7]   110.2
Fair Value [7]   $ 110.2
Investment, Identifier [Axis]: ME Equity LLC, Common stock    
Shares 3,000,000 3,000,000
Amortized Cost $ 3.0 [5] $ 3.0 [2]
Fair Value $ 4.5 [5] $ 3.1 [2]
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [2],[7]   $ 18.2
Amortized Cost [2],[7]   18.2
Fair Value [2],[7]   $ 18.0
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan 2    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [2],[7]   $ 13.7
Amortized Cost [2],[7]   13.7
Fair Value [2],[7]   $ 13.6
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured revolving loan    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [2],[7]   $ 0.6
Amortized Cost [2],[7]   0.6
Fair Value [2],[7]   $ 0.6
Investment, Identifier [Axis]: MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc., First lien senior secured loan    
Coupon, PIK [1]   10.00%
Principal [2]   $ 15.4
Amortized Cost [2]   14.0
Fair Value [2]   $ 13.9
Investment, Identifier [Axis]: MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc., Warrant to purchase shares of common stock    
Shares   3,223,122
Amortized Cost [2]   $ 1.7
Fair Value [2]   $ 1.9
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [7]   $ 51.5
Amortized Cost [7]   51.5
Fair Value [7]   $ 51.5
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 1    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4] $ 47.1  
Amortized Cost [4] 47.1  
Fair Value [4] $ 45.6  
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 2    
Coupon 10.23% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 17.4 [4],[5] $ 4.5 [2],[7]
Amortized Cost 17.4 [4],[5] 4.5 [2],[7]
Fair Value 16.8 [4],[5] $ 4.5 [2],[7]
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan    
Coupon [1]   5.88%
Spread [1]   5.25%
Principal [7]   $ 123.8
Amortized Cost [7]   123.5
Fair Value [7]   $ 123.8
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan 2    
Coupon [1]   5.88%
Spread [1]   5.25%
Principal [2],[7]   $ 19.1
Amortized Cost [2],[7]   19.1
Fair Value [2],[7]   $ 19.1
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., Preferred units    
Coupon [1]   13.75%
Coupon, PIK [1]   9.25%
Shares   59,453
Amortized Cost   $ 75.0
Fair Value   $ 75.0
Investment, Identifier [Axis]: MailSouth, Inc., First lien senior secured loan    
Principal [5],[9] 8.7  
Amortized Cost [5],[9] 5.8  
Fair Value [5],[9] $ 3.9  
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., Class A units    
Coupon, PIK 9.00% [3] 9.00% [1]
Shares 2,539 2,539
Amortized Cost $ 3.1 [5] $ 2.8 [2]
Fair Value $ 3.6 [5] $ 4.0 [2]
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., Class B units    
Shares 570,625 570,625
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., First lien senior secured loan    
Coupon 11.98% [3] 8.25% [1]
Spread 7.25% [3] 7.25% [1]
Principal $ 30.3 [4],[5] $ 42.2 [2],[7]
Amortized Cost 30.3 [4],[5] 42.2 [2],[7]
Fair Value $ 30.3 [4],[5] $ 42.2 [2],[7]
Investment, Identifier [Axis]: Management Consulting & Research LLC, First lien senior secured loan    
Coupon [3] 10.94%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 1.0  
Investment, Identifier [Axis]: Manna Pro Products, LLC, First lien senior secured revolving loan    
Coupon 10.14% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 5.1 [4],[5] $ 1.9 [2],[7]
Amortized Cost 5.1 [4],[5] 1.9 [2],[7]
Fair Value $ 4.7 [4],[5] $ 1.9 [2],[7]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, Class A common units    
Shares 5,578 5,578
Amortized Cost $ 6.1 [5] $ 5.8 [2]
Fair Value $ 10.2 [5] $ 9.3 [2]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan    
Coupon 10.98% [3] 6.25% [1]
Spread 6.25% [3] 5.50% [1]
Principal $ 6.5 [4],[5] $ 18.7 [2],[7]
Amortized Cost 6.5 [4],[5] 18.7 [2],[7]
Fair Value $ 6.5 [4],[5] $ 18.5 [2],[7]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 2    
Coupon 10.91% [3] 6.25% [1]
Spread 6.25% [3] 5.50% [1]
Principal $ 2.6 [4],[5] $ 2.1 [7]
Amortized Cost 2.6 [4],[5] 2.1 [7]
Fair Value $ 2.5 [4],[5] $ 2.1 [7]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 3    
Coupon 10.94% [3] 6.00% [1]
Spread 6.25% [3] 5.25% [1]
Principal $ 2.1 [4],[5] $ 6.6 [7]
Amortized Cost 2.1 [4],[5] 6.6 [7]
Fair Value $ 2.1 [4],[5] $ 6.5 [7]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 4    
Coupon 10.98% [3] 6.25% [1]
Spread 6.25% [3] 5.50% [1]
Principal $ 0.3 [4],[5] $ 35.0 [2],[7]
Amortized Cost 0.3 [4],[5] 35.0 [2],[7]
Fair Value $ 0.3 [4],[5] $ 34.6 [2],[7]
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 34.4
Amortized Cost [2],[7]   34.4
Fair Value [2],[7]   $ 34.4
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 1    
Coupon [3] 10.80%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.7  
Amortized Cost [4],[5] 0.7  
Fair Value [4],[5] $ 0.7  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 2    
Coupon [3] 11.04%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., Limited partnership units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 1,929,237 1,929,237
Amortized Cost $ 2.3 [5] $ 2.1 [2]
Fair Value $ 2.6 [5] $ 2.4 [2]
Investment, Identifier [Axis]: Maverick Acquisition, Inc., First lien senior secured loan    
Coupon 10.98% [3] 7.00% [1]
Spread 6.25% [3] 6.00% [1]
Principal $ 27.6 [4],[5] $ 57.8 [2],[7]
Amortized Cost 27.6 [4],[5] 57.8 [2],[7]
Fair Value $ 25.4 [4],[5] $ 57.3 [2],[7]
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, Class A-1 units    
Shares   24,586
Amortized Cost [2]   $ 24.6
Fair Value [2]   $ 26.8
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, First lien senior secured revolving loan    
Coupon [1]   3.85%
Spread [1]   3.75%
Principal [2],[14]   $ 15.6
Amortized Cost [2],[14]   15.6
Fair Value [2],[14]   $ 15.3
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, Series A preferred stock    
Coupon, PIK [1]   7.00%
Shares   68,601
Amortized Cost [2]   $ 71.8
Fair Value [2]   $ 71.8
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, Class A-1 units    
Shares 24,586  
Amortized Cost [5] $ 24.6  
Fair Value [5] 33.1  
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, First lien senior secured revolving loan    
Principal [15] 0.0  
Amortized Cost [15] 0.0  
Fair Value [15] $ 0.0  
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, Series A preferred stock    
Coupon, PIK [3] 7.00%  
Shares 68,601  
Amortized Cost [5] $ 77.0  
Fair Value [5] $ 76.6  
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan    
Coupon 9.43% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 84.5 [4],[5],[20] $ 84.5 [7],[21]
Amortized Cost 84.5 [4],[5],[20] 84.5 [7],[21]
Fair Value $ 84.5 [4],[5],[20] $ 84.5 [7],[21]
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan 2    
Coupon 10.14% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 5.5 [4],[5] $ 5.5 [7]
Amortized Cost 5.5 [4],[5] 5.5 [7]
Fair Value $ 5.5 [4],[5] $ 5.5 [7]
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan, First Out Tranche    
Coupon 2.00% 2.00%
Principal $ 40.9 $ 46.9
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured revolving loan    
Coupon [3] 10.12%  
Spread [3] 5.75%  
Principal [4],[5] $ 1.9  
Amortized Cost [4],[5] 1.9  
Fair Value [4],[5] $ 1.9  
Investment, Identifier [Axis]: McLaren Group Limited, Senior preference shares    
Coupon, PIK 12.50% [3] 12.50% [1]
Shares 200,000 200,000
Amortized Cost $ 23.7 [5],[6] $ 20.7 [2],[8]
Fair Value $ 26.2 [5],[6] $ 27.1 [2],[8]
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase ordinary shares    
Shares   49,181
Amortized Cost [2],[8]   $ 5.5
Fair Value [2],[8]   $ 5.1
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase ordinary shares 2    
Shares   13,776
Amortized Cost [2],[8]   $ 1.6
Fair Value [2],[8]   $ 1.4
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase up to 13,776 units of ordinary shares    
Shares 13,776  
Amortized Cost [5],[6] $ 1.6  
Fair Value [5],[6] $ 0.8  
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase up to 49,181 units of ordinary shares    
Shares 49,181  
Amortized Cost [5],[6] $ 5.5  
Fair Value [5],[6] 2.8  
Investment, Identifier [Axis]: Medline Borrower, LP, First lien senior secured revolving loan    
Principal [15] 0.0  
Amortized Cost [15] 0.0  
Fair Value [15] $ 0.0  
Investment, Identifier [Axis]: Miami Beckham United LLC, Class A preferred units    
Coupon, PIK 8.50% [3] 8.50% [1]
Shares 85,000 85,000
Amortized Cost $ 94.7 $ 87.1
Fair Value $ 94.7 $ 87.1
Investment, Identifier [Axis]: Micromeritics Instrument Corp., First lien senior secured loan    
Coupon 9.65% [3] 6.00% [1]
Spread 4.50% [3] 5.00% [1]
Principal $ 20.7 [4],[5] $ 32.0 [7]
Amortized Cost 20.7 [4],[5] 32.0 [7]
Fair Value $ 20.7 [4],[5] $ 32.0 [7]
Investment, Identifier [Axis]: Micromeritics Instrument Corp., First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Common stock    
Shares 54,710 54,710
Amortized Cost $ 4.9 [5] $ 4.9 [2]
Fair Value $ 6.6 [5] $ 4.5 [2]
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Second lien senior secured loan    
Coupon [3] 15.58%  
Coupon, PIK 11.00% [3] 10.00% [1]
Spread 11.00% [3] 9.00% [1]
Principal $ 159.3 [4] $ 153.5 [7]
Amortized Cost 159.3 [4] 153.5 [7]
Fair Value $ 159.3 [4] $ 150.4 [7]
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Series A preferred stock    
Shares 1,507 1,507
Amortized Cost $ 1.5 [5] $ 1.5 [2]
Fair Value $ 2.6 [5] $ 2.0 [2]
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 1    
Coupon [3] 10.17%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 102.1  
Amortized Cost [4],[5],[6] 102.1  
Fair Value [4],[5],[6] $ 99.1  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 2    
Coupon [3] 9.18%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 34.8  
Amortized Cost [4],[5],[6] 35.6  
Fair Value [4],[5],[6] $ 33.7  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, Limited partnership interest    
Shares 3,974  
Amortized Cost [5],[6] $ 38.8  
Fair Value [5],[6] $ 39.4  
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured loan    
Coupon 9.88% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 32.5 [4],[5] $ 72.7 [2],[7]
Amortized Cost 32.5 [4],[5] 72.7 [2],[7]
Fair Value $ 30.9 [4],[5] $ 72.0 [2],[7]
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured revolving loan    
Coupon [3] 9.88%  
Spread [3] 5.50%  
Principal [4],[5] $ 4.0  
Amortized Cost [15] 4.0  
Fair Value [15] $ 3.8  
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., Limited partner interests    
Shares 9,574,000 9,574,000
Amortized Cost $ 9.6 [5] $ 9.6 [2]
Fair Value $ 8.8 [5] $ 9.6 [2]
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Class A units    
Shares   500,000
Amortized Cost [2]   $ 5.0
Fair Value [2]   $ 7.2
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan    
Coupon [1]   5.00%
Spread [1]   4.00%
Principal [7]   $ 9.2
Amortized Cost [7]   9.2
Fair Value [7]   $ 9.2
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan 2    
Coupon [1]   5.00%
Spread [1]   4.00%
Principal [7]   $ 4.7
Amortized Cost [7]   4.7
Fair Value [7]   $ 4.7
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured revolving loan    
Coupon [1]   7.25%
Spread [1]   4.00%
Principal [7]   $ 5.0
Amortized Cost [7]   5.0
Fair Value [7]   $ 5.0
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan    
Coupon [1]   10.25%
Spread [1]   9.25%
Principal [7]   $ 106.6
Amortized Cost [7]   106.4
Fair Value [7]   $ 106.6
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 2    
Coupon [1]   10.25%
Spread [1]   9.25%
Principal [2],[7]   $ 13.9
Amortized Cost [2],[7]   13.9
Fair Value [2],[7]   $ 13.9
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 3    
Coupon [1]   10.25%
Spread [1]   9.25%
Principal [2],[7]   $ 17.9
Amortized Cost [2],[7]   17.9
Fair Value [2],[7]   $ 17.9
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 4    
Coupon [1]   9.00%
Spread [1]   8.00%
Principal [2],[7]   $ 48.9
Amortized Cost [2],[7]   48.9
Fair Value [2],[7]   $ 48.9
Investment, Identifier [Axis]: Mitchell International, Inc., Second lien senior secured loan    
Coupon 11.23% [3] 7.00% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 98.1 [4],[5],[11] $ 91.2 [2],[7],[12]
Amortized Cost 96.1 [4],[5],[11] 90.3 [2],[7],[12]
Fair Value $ 81.0 [4],[5],[11] $ 91.6 [2],[7],[12]
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured loan    
Coupon 11.48% [3] 7.25% [1]
Spread 6.75% [3] 6.25% [1]
Principal $ 2.6 [4],[5] $ 2.6 [2],[7]
Amortized Cost 2.6 [4],[5] 2.6 [2],[7]
Fair Value $ 2.5 [4],[5] $ 2.6 [2],[7]
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured revolving loan    
Coupon 10.99% [3] 0.00% [1]
Spread [3] 6.25%  
Principal [4],[5] $ 2.4  
Amortized Cost 2.4 [15] $ 0.0 [16]
Fair Value $ 2.3 [15] $ 0.0 [16]
Investment, Identifier [Axis]: Monolith Brands Group, Inc., Series A-1 preferred stock    
Shares 701,255  
Amortized Cost [5] $ 15.5  
Fair Value [5] $ 15.5  
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP, First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [7]   $ 79.0
Amortized Cost [7]   79.0
Fair Value [7]   $ 78.2
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP, Limited partnership interests    
Shares 21,939,151 96,939,152
Amortized Cost $ 20.8 [4],[5] $ 96.9
Fair Value $ 42.9 [4],[5] $ 96.9
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC, Class A units    
Coupon, PIK [3] 8.00%  
Shares 45,320  
Amortized Cost $ 4.5  
Fair Value $ 4.5  
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC, First lien senior secured loan    
Coupon [3] 10.32%  
Spread [3] 6.00%  
Principal [4],[5] $ 25.1  
Amortized Cost [4],[5] 25.1  
Fair Value [4],[5] $ 24.6  
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan    
Coupon 10.18% [3] 7.45% [1]
Coupon, PIK 0.50% [3] 0.50% [1]
Spread 6.00% [3] 4.20% [1]
Principal $ 4.7 [4],[5],[6] $ 0.2 [2],[7],[8]
Amortized Cost 4.9 [4],[5],[6] 0.2 [2],[7],[8]
Fair Value $ 4.6 [4],[5],[6] $ 0.2 [2],[7],[8]
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 2    
Coupon [1]   7.50%
Coupon, PIK [1]   0.50%
Spread [1]   6.00%
Principal [2],[7],[8]   $ 2.9
Amortized Cost [2],[7],[8]   3.0
Fair Value [2],[7],[8]   $ 2.7
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 3    
Coupon [1]   7.50%
Coupon, PIK [1]   0.50%
Spread [1]   6.00%
Principal [7],[8]   $ 2.3
Amortized Cost [7],[8]   2.2
Fair Value [7],[8]   $ 2.1
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan    
Coupon 13.08% [3] 11.00% [1]
Spread 8.50% [3] 9.00% [1]
Principal $ 75.5 [4],[5] $ 2.7 [2],[7]
Amortized Cost 75.5 [4],[5] 2.7 [2],[7]
Fair Value $ 75.5 [4],[5] $ 2.7 [2],[7]
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan 2    
Coupon [1]   10.00%
Spread [1]   8.00%
Principal [2],[7]   $ 38.3
Amortized Cost [2],[7]   38.3
Fair Value [2],[7]   $ 38.3
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, Preferred units    
Coupon [1]   8.00%
Coupon, PIK [3] 8.00%  
Shares 41,000 21,667
Amortized Cost $ 41.0 $ 24.9
Fair Value $ 45.9 $ 27.4
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan    
Coupon [1]   7.50%
Spread [1]   6.50%
Principal [2],[7]   $ 2.4
Amortized Cost [2],[7]   2.4
Fair Value [2],[7]   $ 2.4
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 1    
Coupon [3] 11.23%  
Spread [3] 6.50%  
Principal [4],[5] $ 6.3  
Amortized Cost [4],[5] 6.3  
Fair Value [4],[5] $ 6.3  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 2    
Coupon 11.23% [3] 7.00% [1]
Spread 6.50% [3] 6.00% [1]
Principal $ 2.3 [4],[5] $ 6.4 [2],[7]
Amortized Cost 2.3 [4],[5] 6.4 [2],[7]
Fair Value $ 2.3 [4],[5] $ 6.4 [2],[7]
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 3    
Coupon [3] 11.23%  
Spread [3] 6.50%  
Principal [4],[5] $ 1.3  
Amortized Cost [4],[5] 1.3  
Fair Value [4],[5] $ 1.3  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured revolving loan    
Coupon 11.23% [3] 8.75% [1]
Spread 6.50% [3] 5.50% [1]
Principal $ 0.6 [4],[5] $ 0.6 [2],[7]
Amortized Cost 0.6 [4],[5] 0.6 [2],[7]
Fair Value $ 0.6 [4],[5] $ 0.6 [2],[7]
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, Class A-2 common units    
Shares 12,296,000 12,296,000
Amortized Cost $ 12.9 [5] $ 12.9 [2]
Fair Value $ 18.5 [5] $ 18.5 [2]
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan    
Coupon 10.38% [3] 6.75% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 97.0 [4],[5] $ 12.1 [2],[7]
Amortized Cost 97.0 [4],[5] 12.1 [2],[7]
Fair Value $ 95.1 [4],[5] $ 12.0 [2],[7]
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan 2    
Coupon 10.38% [3] 6.75% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 0.2 [4],[5] $ 176.4 [2],[7]
Amortized Cost 0.2 [4],[5] 176.4 [2],[7]
Fair Value $ 0.2 [4],[5] 174.7 [2],[7]
Investment, Identifier [Axis]: NECCO Holdings, Inc. and New England Confectionery Company, Inc.    
Fair Value   0.0
Investment, Identifier [Axis]: NECCO Realty Investments LLC    
Fair Value   $ 0.0
Investment, Identifier [Axis]: NM GRC Holdco, LLC, First lien senior secured loan    
Coupon [1]   8.50%
Coupon, PIK [1]   1.50%
Spread [1]   7.50%
Principal [7]   $ 45.4
Amortized Cost [7]   45.2
Fair Value [7]   $ 45.4
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan    
Coupon 9.38% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 32.0 [4],[5] $ 24.2 [7]
Amortized Cost 32.0 [4],[5] 24.2 [7]
Fair Value $ 30.7 [4],[5] $ 23.9 [7]
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan 2    
Coupon 9.38% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 4.7 [4],[5] $ 8.1 [7]
Amortized Cost 4.7 [4],[5] 8.1 [7]
Fair Value $ 4.5 [4],[5] $ 8.1 [7]
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured revolving loan    
Coupon [1]   6.00%
Spread [1]   5.00%
Principal [2],[7]   $ 6.2
Amortized Cost [2],[7]   6.2
Fair Value [2],[7]   $ 6.1
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP, First lien senior secured revolving loan    
Coupon 8.13% [3] 0.00% [1]
Spread [3] 3.75%  
Principal [5],[13] $ 2.3  
Amortized Cost 2.3 [5],[13] $ 0.0 [16]
Fair Value $ 2.1 [5],[13] $ 0.0 [16]
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP, Partnership units    
Shares 30,000 30,000
Amortized Cost $ 3.0 [5] $ 3.0 [2]
Fair Value $ 2.0 [5] $ 2.8 [2]
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured loan    
Coupon [1]   6.00%
Spread [1]   4.75%
Principal [7]   $ 12.8
Amortized Cost [7]   12.8
Fair Value [7]   $ 12.8
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured revolving loan    
Coupon [1]   7.00%
Spread [1]   3.75%
Principal [2],[7],[14]   $ 0.5
Amortized Cost [2],[7],[14]   0.5
Fair Value [2],[7],[14]   $ 0.5
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Class A units    
Shares 25,277 25,277
Amortized Cost $ 2.5 [5] $ 2.5 [2]
Fair Value $ 3.6 [5] $ 4.1 [2]
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Preferred units    
Coupon, PIK 15.00% [3] 15.00% [1]
Shares 1,842 1,842
Amortized Cost $ 0.2 [5] $ 0.1 [2]
Fair Value $ 0.2 [5] $ 0.1 [2]
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Second lien senior secured loan    
Coupon [1]   11.00%
Spread [1]   10.00%
Principal [2],[7]   $ 72.8
Amortized Cost [2],[7]   72.8
Fair Value [2],[7]   $ 72.8
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Senior preferred units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 5,320 5,320
Amortized Cost $ 0.3 [5] $ 0.3 [2]
Fair Value $ 0.3 [5] 0.3 [2]
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Common stock    
Shares 4  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Common stock 2    
Shares 16  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Senior preferred series A-1 shares    
Shares 151,056  
Amortized Cost [5] $ 98.1  
Fair Value [5] $ 46.5  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series B preferred stock    
Shares 348,615  
Amortized Cost $ 1.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series B preferred stock 2    
Shares 757,505  
Amortized Cost $ 4.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series C preferred stock    
Shares 517,942  
Amortized Cost $ 0.1  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series C preferred stock 2    
Shares 1,994,644  
Amortized Cost $ 0.5  
Fair Value $ 0.0  
Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company, First lien senior secured revolving loan    
Coupon [3] 7.12%  
Spread [3] 3.00%  
Principal [5] $ 1.2  
Amortized Cost [5] 1.2  
Fair Value [5] 1.2  
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC    
Fair Value $ 0.0 $ 143.7
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, Class A units    
Shares   550
Amortized Cost   $ 0.0
Fair Value   $ 11.8
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan    
Coupon, PIK [1]   8.00%
Principal [2]   $ 54.4
Amortized Cost [2]   54.4
Fair Value [2]   $ 54.4
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 2    
Coupon, PIK [1]   9.00%
Principal [2]   $ 15.2
Amortized Cost [2]   15.2
Fair Value [2]   $ 15.2
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 3    
Coupon [1]   8.00%
Coupon, PIK [1]   3.00%
Principal [2]   $ 46.5
Amortized Cost [2]   46.5
Fair Value [2]   $ 46.5
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, Series A preferred units    
Coupon, PIK [1]   10.50%
Shares   1,000
Amortized Cost   $ 14.7
Fair Value   $ 15.8
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., Class A preferred units    
Shares 6,762,668  
Amortized Cost [5],[6] $ 6.8  
Fair Value [5],[6] $ 7.5  
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., Class A units    
Shares   6,762,668
Amortized Cost [2],[8]   $ 6.8
Fair Value [2],[8]   $ 7.1
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan    
Coupon 8.66% [3] 5.25% [1]
Spread 4.25% [3] 4.25% [1]
Principal $ 14.9 [4],[5],[6] $ 15.0 [7],[8]
Amortized Cost 14.9 [4],[5],[6] 15.0 [7],[8]
Fair Value $ 14.6 [4],[5],[6] $ 15.0 [7],[8]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 2    
Coupon 6.11% [3] 4.50% [1]
Spread 4.50% [3] 4.50% [1]
Principal $ 4.8 [5],[6] $ 5.2 [2],[8]
Amortized Cost 5.1 [5],[6] 5.1 [2],[8]
Fair Value $ 4.7 [5],[6] $ 5.2 [2],[8]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 3    
Coupon 6.11% [3] 4.50% [1]
Spread 4.50% [3] 4.50% [1]
Principal $ 1.5 [5],[6] $ 24.4 [2],[8]
Amortized Cost 1.6 [5],[6] 24.0 [2],[8]
Fair Value $ 1.5 [5],[6] $ 24.4 [2],[8]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured revolving loan    
Coupon 8.66% [3] 5.25% [1]
Spread 4.25% [3] 4.25% [1]
Principal $ 0.1 [4],[5],[6] $ 0.2 [2],[7],[8]
Amortized Cost 0.1 [4],[5],[6] 0.2 [2],[7],[8]
Fair Value $ 0.1 [4],[5],[6] $ 0.2 [2],[7],[8]
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 1    
Coupon [3] 8.82%  
Spread [3] 5.00%  
Principal [4],[5] $ 99.3  
Amortized Cost [4],[5] 90.4  
Fair Value [4],[5] $ 88.4  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 2    
Coupon [3] 8.57%  
Spread [3] 4.75%  
Principal [4],[5] $ 74.0  
Amortized Cost [4],[5] 68.5  
Fair Value [4],[5] $ 65.9  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 3    
Coupon [3] 6.25%  
Spread [3] 5.00%  
Principal [5] $ 16.2  
Amortized Cost [5] 13.5  
Fair Value [5] $ 14.4  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured notes    
Coupon [3] 929.00%  
Amortized Cost [5],[11] $ 51.4  
Fair Value [5],[11] $ 49.8  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., Limited partnership interest    
Shares 4,040,000  
Amortized Cost [5] $ 4.0  
Fair Value [5] $ 4.0  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., Second lien senior secured loan    
Coupon [3] 13.57%  
Spread [3] 9.75%  
Principal [4],[5] $ 221.3  
Amortized Cost [4],[5] 221.3  
Fair Value [4],[5] $ 214.7  
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1, Limited partner interest    
Shares 9,725,000 9,725,000
Amortized Cost $ 9.7 [5] $ 9.7 [2]
Fair Value $ 10.2 [5] $ 9.7 [2]
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1, Senior subordinated loan    
Coupon 13.26% [3] 9.00% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 119.1 [4],[5] $ 119.1 [2],[7]
Amortized Cost 119.1 [4],[5] 119.1 [2],[7]
Fair Value $ 117.9 [4],[5] $ 117.9 [2],[7]
Investment, Identifier [Axis]: New Era Cap, LLC, First lien senior secured loan    
Coupon [3] 9.94%  
Spread [3] 6.00%  
Principal [4],[5] $ 27.8  
Amortized Cost [4],[5] 27.8  
Fair Value [4],[5] 27.8  
Investment, Identifier [Axis]: Noble Aerospace, LLC, First lien senior secured revolving loan    
Principal [15] 0.0  
Amortized Cost [15] 0.0  
Fair Value [15] $ 0.0  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, Common units    
Shares 884,916 884,916
Amortized Cost $ 0.9 [5] $ 0.9 [2]
Fair Value $ 2.9 [5] $ 1.2 [2]
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 20.1
Amortized Cost [7]   20.1
Fair Value [7]   $ 20.1
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 1    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5] $ 20.0  
Amortized Cost [4],[5] 20.0  
Fair Value [4],[5] $ 20.0  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 2    
Coupon [3] 10.08%  
Spread [3] 5.50%  
Principal [4],[5] $ 2.9  
Amortized Cost [4],[5] 2.9  
Fair Value [4],[5] $ 2.9  
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., Class A preferred units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 13,528 13,528
Amortized Cost $ 16.2 [5] $ 14.9 [2]
Fair Value $ 38.8 [5] $ 32.8 [2]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan    
Coupon 10.18% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 47.5 [4],[5] $ 48.0 [7]
Amortized Cost 47.5 [4],[5] 48.0 [7]
Fair Value $ 47.5 [4],[5] $ 48.0 [7]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 2    
Coupon 10.18% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 2.6 [4],[5] $ 2.6 [7]
Amortized Cost 2.6 [4],[5] 2.6 [7]
Fair Value $ 2.6 [4],[5] $ 2.6 [7]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 3    
Coupon 10.18% [3] 6.50% [1]
Spread 5.50% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 4    
Coupon [3] 10.18%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC, Fairway Lawns, LLC and Command Pest Control, LLC, First lien senior secured loan    
Coupon [3] 11.05%  
Spread [3] 6.50%  
Principal [4],[5] $ 6.4  
Amortized Cost [4],[5] 6.3  
Fair Value [4],[5] $ 6.2  
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC, Class A units    
Shares 50,000 50,000
Amortized Cost $ 5.0 $ 5.0
Fair Value $ 1.8 $ 4.1
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC, First lien senior secured loan    
Coupon 11.19% [3] 7.00% [1]
Spread 6.50% [3] 6.00% [1]
Principal $ 25.3 [4],[5] $ 22.3 [2],[7]
Amortized Cost 25.3 [4],[5] 22.3 [2],[7]
Fair Value $ 23.5 [4],[5] $ 22.1 [2],[7]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured loan    
Coupon 9.90% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 6.9 [4],[5] $ 11.1 [2],[7]
Amortized Cost 6.8 [4],[5] 10.8 [2],[7]
Fair Value $ 6.7 [4],[5] $ 11.0 [2],[7]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured revolving loan    
Coupon [3] 9.92%  
Spread [3] 5.50%  
Principal [4],[5] $ 0.8  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] $ 0.8  
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., Class A preferred units    
Coupon, PIK 10.00% [3] 10.00% [1]
Shares 4,772 4,772
Amortized Cost $ 4.2 [5] $ 5.2 [2]
Fair Value $ 9.2 [5] $ 6.3 [2]
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., Class C units    
Shares 4,772 4,772
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan    
Coupon 11.17% [3] 6.75% [1]
Spread 6.75% [3] 5.75% [1]
Principal $ 23.5 [4],[5] $ 23.9 [7]
Amortized Cost 23.5 [4],[5] 23.9 [7]
Fair Value $ 23.5 [4],[5] $ 23.9 [7]
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan 2    
Coupon [3] 11.17%  
Spread [3] 6.75%  
Principal [4],[5] $ 6.3  
Amortized Cost [4],[5] 6.3  
Fair Value [4],[5] $ 6.3  
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan    
Coupon [1]   8.25%
Spread [1]   7.25%
Principal [7]   $ 12.4
Amortized Cost [7]   12.4
Fair Value [7]   $ 12.4
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan 2    
Coupon [1]   8.25%
Spread [1]   7.25%
Principal [2],[7]   $ 3.0
Amortized Cost [2],[7]   3.0
Fair Value [2],[7]   $ 3.0
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured revolving loan    
Coupon [1]   8.25%
Spread [1]   7.25%
Principal [2],[7]   $ 3.3
Amortized Cost [2],[7]   3.3
Fair Value [2],[7]   $ 3.3
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan    
Coupon 10.02% [3] 6.50% [1]
Spread 5.25% [3] 5.50% [1]
Principal $ 25.9 [4],[5] $ 26.1 [7]
Amortized Cost 25.9 [4],[5] 26.1 [7]
Fair Value $ 25.9 [4],[5] $ 26.1 [7]
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 2    
Coupon 10.02% [3] 6.50% [1]
Spread 5.25% [3] 5.50% [1]
Principal $ 15.2 [4],[5] $ 15.4 [7]
Amortized Cost 15.2 [4],[5] 15.4 [7]
Fair Value $ 15.2 [4],[5] $ 15.4 [7]
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 3    
Coupon [3] 10.02%  
Spread [3] 5.25%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: OTG Management, LLC, Class A preferred units    
Shares 3,000,000 3,000,000
Amortized Cost $ 25.3 [5] $ 25.3
Fair Value $ 13.1 [5] $ 15.8
Investment, Identifier [Axis]: OTG Management, LLC, Common units    
Shares 3,000,000 3,000,000
Amortized Cost $ 3.0 $ 3.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: OTG Management, LLC, Warrant to purchase common units    
Shares (as a percent)   7.73%
Amortized Cost   $ 0.1
Fair Value   $ 0.0
Investment, Identifier [Axis]: OTG Management, LLC, Warrant to purchase up to 7.73% of common units    
Shares (as a percent) 773.00%  
Amortized Cost $ 0.1  
Fair Value $ 0.0  
Investment, Identifier [Axis]: OUTFRONT Media Inc., Series A convertible perpetual preferred stock    
Coupon 700.00% [3] 7.00% [1]
Shares 25,000 25,000
Amortized Cost $ 25.0 [5],[6] $ 25.0 [2],[8]
Fair Value $ 33.6 [5],[6] $ 44.4 [2],[8]
Investment, Identifier [Axis]: Offen, Inc., First lien senior secured loan    
Coupon [3] 8.51%  
Spread [3] 5.00%  
Principal [5] $ 1.4  
Amortized Cost [5] 1.5  
Fair Value [5] 1.4  
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., Class A common units    
Shares   9,549,000
Amortized Cost [2]   $ 9.5
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [7]   $ 42.1
Amortized Cost [7]   42.1
Fair Value [7]   $ 34.5
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan 2    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [7]   $ 0.9
Amortized Cost [7]   0.9
Fair Value [7]   $ 0.8
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [2],[7]   $ 10.1
Amortized Cost [2],[7]   10.1
Fair Value [2],[7]   $ 8.3
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan 2    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [2],[7]   $ 0.2
Amortized Cost [2],[7]   0.2
Fair Value [2],[7]   $ 0.2
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., Preferred units    
Coupon, PIK [1]   15.00%
Shares   417,189
Amortized Cost [2]   $ 0.3
Fair Value [2]   $ 0.3
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P. and Asclepius Hodlings LLC    
Fair Value $ 44.7  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Class A common units    
Shares 9,549,000  
Amortized Cost $ 9.5  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Common units    
Shares 7,584  
Amortized Cost $ 0.0  
Fair Value 0.0  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan    
Principal [4] 50.9  
Amortized Cost [4] 49.3  
Fair Value [4] 38.1  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan 2    
Principal [4],[5] 8.7  
Amortized Cost [4],[5] 8.5  
Fair Value [4],[5] $ 6.6  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Preferred stock    
Shares 7,983  
Amortized Cost $ 3.1  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Preferred units    
Shares 417,189  
Amortized Cost $ 0.3  
Fair Value 0.0  
Investment, Identifier [Axis]: OneDigital Borrower LLC, First lien senior secured revolving loan    
Principal [15] 0.0  
Amortized Cost [15] 0.0  
Fair Value [15] $ 0.0  
Investment, Identifier [Axis]: OneDigital Holdings, Achilles Holdco, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Opal Fuels LLC and Opal Fuels Inc., Class A common stock    
Shares 3,059,533  
Amortized Cost [6],[11] $ 23.3  
Fair Value [6],[11] $ 22.3  
Investment, Identifier [Axis]: Opal Fuels LLC and Opal Fuels Inc., Senior subordinated loan    
Coupon, PIK [3] 8.00%  
Principal [6] $ 28.5  
Amortized Cost [6] 24.8  
Fair Value [6] $ 28.5  
Investment, Identifier [Axis]: Opal Fuels LLC, Senior subordinated loan    
Coupon, PIK [1]   8.00%
Principal   $ 52.7
Amortized Cost   43.8
Fair Value   $ 47.8
Investment, Identifier [Axis]: OpenMarket Inc., First lien senior secured loan    
Coupon 10.98% [3] 7.00% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 51.6 [4],[5],[6] $ 50.7 [2],[7],[8]
Amortized Cost 51.6 [4],[5],[6] 50.7 [2],[7],[8]
Fair Value $ 51.1 [4],[5],[6] $ 50.1 [2],[7],[8]
Investment, Identifier [Axis]: Osmose Utilities Services, Inc. and Pine Intermediate Holding LLC, Second lien senior secured loan    
Coupon 11.13% [3] 7.25% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 55.3 [4],[5] $ 55.3 [2],[7]
Amortized Cost 55.3 [4],[5] 55.3 [2],[7]
Fair Value 51.4 [4],[5] 54.7 [2],[7]
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment II, L.P.    
Fair Value $ 15.5 $ 11.1
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment II, L.P., Limited partnership interest    
Shares (as a percent) 100.00% 100.00%
Amortized Cost $ 7.1 [5],[6] $ 7.0 [2],[8],[19]
Fair Value 15.5 [5],[6] 11.1 [2],[8],[19]
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment, L.P.    
Fair Value $ 0.7 $ 1.3
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment, L.P., Limited partnership interest    
Shares (as a percent) 100.00% 100.00%
Amortized Cost $ 4.3 [6] $ 4.3 [8],[19]
Fair Value $ 0.7 [6] $ 1.3 [8],[19]
Investment, Identifier [Axis]: PDDS Holdco, Inc., First lien senior secured loan    
Coupon [3] 12.30%  
Spread [3] 7.50%  
Principal [4],[5] $ 9.4  
Amortized Cost [4],[5] 9.4  
Fair Value [4],[5] $ 9.2  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Class A units    
Shares 2,062,493 2,062,493
Amortized Cost $ 2.1 [5] $ 2.1 [2]
Fair Value $ 2.7 [5] $ 2.9 [2]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured loan    
Coupon 8.73% [3] 5.50% [1]
Spread 4.50% [3] 4.50% [1]
Principal $ 52.9 [4],[5] $ 53.5 [7]
Amortized Cost 52.9 [4],[5] 53.5 [7]
Fair Value $ 51.9 [4],[5] $ 53.5 [7]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured revolving loan    
Coupon [3] 8.82%  
Spread [3] 4.50%  
Principal [4],[5] $ 6.1  
Amortized Cost [4],[5] 6.1  
Fair Value [4],[5] $ 6.0  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan    
Coupon [1]   9.50%
Spread [1]   8.50%
Principal [2],[7]   $ 7.2
Amortized Cost [2],[7]   7.2
Fair Value [2],[7]   $ 7.2
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 1    
Coupon [3] 13.18%  
Spread [3] 8.50%  
Principal [4],[5] $ 70.1  
Amortized Cost [4],[5] 70.1  
Fair Value [4],[5] $ 68.7  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 2    
Coupon 13.18% [3] 9.50% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 8.7 [4],[5] $ 70.1 [2],[7]
Amortized Cost 8.7 [4],[5] 70.1 [2],[7]
Fair Value $ 8.6 [4],[5] $ 70.1 [2],[7]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 3    
Coupon 13.18% [3] 9.50% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 8.3 [4],[5] $ 8.3 [2],[7]
Amortized Cost 8.3 [4],[5] 8.3 [2],[7]
Fair Value $ 8.1 [4],[5] $ 8.3 [2],[7]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 4    
Coupon 13.18% [3] 9.50% [1]
Spread 8.50% [3] 8.50% [1]
Principal $ 7.2 [4],[5] $ 8.7 [2],[7]
Amortized Cost 7.2 [4],[5] 8.7 [2],[7]
Fair Value $ 7.1 [4],[5] $ 8.7 [2],[7]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Series A preferred stock    
Coupon, PIK 13.25% [3] 13.25% [1]
Shares 13,656 13,656
Amortized Cost $ 22.3 [5] $ 19.5 [2]
Fair Value $ 21.2 [5] $ 19.7 [2]
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), Common unit    
Shares   279,200
Amortized Cost [2]   $ 7.4
Fair Value [2]   $ 7.4
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 14.9
Amortized Cost [2],[7]   14.9
Fair Value [2],[7]   $ 14.9
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured revolving loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 2.8
Amortized Cost [2],[7]   2.8
Fair Value [2],[7]   2.8
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, Common unit    
Shares 279,199  
Amortized Cost [5] $ 7.4  
Fair Value [5] $ 8.3  
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured loan    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 14.9  
Amortized Cost [4],[5] 14.9  
Fair Value [4],[5] $ 14.9  
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured revolving loan    
Coupon [3] 10.73%  
Spread [3] 6.00%  
Principal [4],[5] $ 4.5  
Amortized Cost [4],[5] 4.5  
Fair Value [4],[5] 4.5  
Investment, Identifier [Axis]: PS Operating Company LLC and PS Op Holdings LLC    
Fair Value $ 27.7 $ 25.1
Investment, Identifier [Axis]: Padres L.P., First lien senior secured loan    
Coupon [1]   6.00%
Spread [1]   5.00%
Principal [2],[7]   $ 92.8
Amortized Cost [2],[7]   92.8
Fair Value [2],[7]   92.8
Investment, Identifier [Axis]: Panda Temple Power, LLC and T1 Power Holdings LLC    
Fair Value   $ 0.0
Investment, Identifier [Axis]: Partnership Capital Growth Investors III, L.P., Limited partnership interest    
Shares (as a percent) 2.50% 2.50%
Amortized Cost $ 1.8 [5],[6],[11] $ 1.8 [8],[12]
Fair Value $ 3.9 [5],[6],[11] $ 3.6 [8],[12]
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, Class R common units    
Shares 6,004,768 6,004,768
Amortized Cost $ 6.0 [5] $ 6.0 [2]
Fair Value $ 5.5 [5] $ 7.9 [2]
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, Second lien senior secured loan    
Coupon 12.13% [3] 8.75% [1]
Spread 7.75% [3] 7.75% [1]
Principal $ 76.3 [4],[5] $ 76.3 [2],[7]
Amortized Cost 76.3 [4],[5] 76.3 [2],[7]
Fair Value $ 65.6 [4],[5] $ 76.3 [2],[7]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, First lien senior secured loan    
Coupon 8.87% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 16.0 [4],[5] $ 11.6 [2],[7]
Amortized Cost 15.8 [4],[5] 11.4 [2],[7]
Fair Value $ 15.5 [4],[5] $ 11.5 [2],[7]
Investment, Identifier [Axis]: PayNearMe, Inc., Warrant to purchase shares of Series E preferred stock    
Shares   195,726
Amortized Cost [2]   $ 0.2
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: PayNearMe, Inc., Warrant to purchase up to 195,726 shares of Series E preferred stock    
Shares 195,726  
Amortized Cost $ 0.2  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Paya, Inc and GTCR-Ultra Holdings LLC, Class B units    
Shares 2,878,372 2,878,372
Amortized Cost $ 0.0 [5] $ 0.0 [2]
Fair Value $ 2.6 [5] $ 2.1 [2]
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, Class A units    
Shares 5,000 5,000
Amortized Cost $ 5.0 $ 5.0
Fair Value $ 14.3 $ 12.3
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan    
Coupon [1]   6.25%
Spread [1]   5.25%
Principal [2],[7]   $ 0.2
Amortized Cost [2],[7]   0.2
Fair Value [2],[7]   $ 0.2
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 1    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 13.7  
Amortized Cost [4],[5] 13.7  
Fair Value [4],[5] $ 13.7  
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 2    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 3    
Coupon 9.98% [3] 6.75% [1]
Spread 5.25% [3] 5.75% [1]
Principal $ 0.2 [4],[5] $ 29.9 [2],[7]
Amortized Cost 0.2 [4],[5] 29.9 [2],[7]
Fair Value $ 0.2 [4],[5] $ 29.9 [2],[7]
Investment, Identifier [Axis]: Pelican Products, Inc., Second lien senior secured loan    
Coupon 12.20% [3] 8.25% [1]
Spread 7.75% [3] 7.75% [1]
Principal $ 60.0 [4],[5] $ 60.0 [2],[7]
Amortized Cost 60.0 [4],[5] 60.0 [2],[7]
Fair Value $ 55.8 [4],[5] $ 59.4 [2],[7]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan    
Coupon 10.91% [3] 6.25% [1]
Spread 6.25% [3] 5.50% [1]
Principal $ 40.9 [4],[5],[6] $ 1.4 [2],[7],[8]
Amortized Cost 43.7 [4],[5],[6] 1.3 [2],[7],[8]
Fair Value $ 40.5 [4],[5],[6] $ 1.4 [2],[7],[8]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 2    
Coupon 10.91% [3] 7.25% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 12.8 [4],[5],[6] $ 44.3 [2],[7],[8]
Amortized Cost 14.0 [4],[5],[6] 44.1 [2],[7],[8]
Fair Value $ 12.6 [4],[5],[6] $ 44.3 [2],[7],[8]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 3    
Coupon 10.17% [3] 7.25% [1]
Spread 5.50% [3] 6.25% [1]
Principal $ 8.1 [4],[5],[6] $ 13.8 [7],[8]
Amortized Cost 8.4 [4],[5],[6] 14.1 [7],[8]
Fair Value $ 7.8 [4],[5],[6] $ 13.8 [7],[8]
Investment, Identifier [Axis]: People Corporation, First lien senior secured revolving loan    
Coupon 10.99% [3] 7.25% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 1.3 [4],[5],[6] $ 2.9 [2],[7],[8]
Amortized Cost 1.3 [4],[5],[6] 2.8 [2],[7],[8]
Fair Value $ 1.3 [4],[5],[6] $ 2.9 [2],[7],[8]
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured loan    
Coupon [3] 9.38%  
Spread [3] 5.00%  
Principal [4],[5] $ 5.3  
Amortized Cost [4],[5] 5.1  
Fair Value [4],[5] $ 5.0  
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan    
Coupon 10.42% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 34.5 [4],[5] $ 8.1 [2],[7]
Amortized Cost 34.5 [4],[5] 8.1 [2],[7]
Fair Value $ 34.5 [4],[5] $ 8.1 [2],[7]
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 2    
Coupon 10.72% [3] 1.00% [1]
Spread 6.00% [3] 0.00% [1]
Principal $ 11.6 [4],[5] $ 0.2 [2],[7]
Amortized Cost 11.6 [4],[5] 0.2 [2],[7]
Fair Value $ 11.6 [4],[5] $ 0.2 [2],[7]
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 3    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 34.2
Amortized Cost [7]   34.2
Fair Value [7]   $ 34.2
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 4    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 0.7
Amortized Cost [2],[7]   0.7
Fair Value [2],[7]   $ 0.7
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured revolving loan    
Coupon 9.71% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 2.5 [4],[5],[13] $ 2.2 [2],[7],[14]
Amortized Cost 2.5 [4],[5],[13] 2.2 [2],[7],[14]
Fair Value $ 2.5 [4],[5],[13] $ 2.2 [2],[7],[14]
Investment, Identifier [Axis]: Petrus Buyer, Inc., First lien senior secured loan    
Coupon 10.70%  
Spread 6.50%  
Principal $ 5.1  
Amortized Cost 5.1  
Fair Value $ 4.9  
Investment, Identifier [Axis]: Petvisor Holdings, LLC, First lien senior secured loan    
Coupon [3] 10.21%  
Spread [3] 5.50%  
Principal [4],[5] $ 21.5  
Amortized Cost [4],[5] 21.5  
Fair Value [4],[5] $ 21.5  
Investment, Identifier [Axis]: PhyMED Management LLC, Second lien senior secured loan    
Coupon [1]   15.00%
Coupon, PIK [1]   10.49%
Spread [1]   14.00%
Principal [2],[7]   $ 55.7
Amortized Cost [2],[7]   55.6
Fair Value [2],[7]   $ 52.4
Investment, Identifier [Axis]: Ping Identity Holding Corp., First lien senior secured loan    
Coupon [3] 11.32%  
Spread [3] 7.00%  
Principal [4],[5] $ 11.3  
Amortized Cost [4],[5] 11.3  
Fair Value [4],[5] $ 11.0  
Investment, Identifier [Axis]: Piper Jaffray Merchant Banking Fund I, L.P., Limited partnership interest    
Shares (as a percent) 2.00% 2.00%
Amortized Cost $ 0.1 [6],[11] $ 0.1 [8],[12]
Fair Value $ 0.5 [6],[11] $ 1.0 [8],[12]
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, Co-Invest units    
Shares 5,969 5,969
Amortized Cost $ 0.6 [5] $ 0.6 [2]
Fair Value $ 0.5 [5] $ 0.9 [2]
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, First lien senior secured loan    
Coupon [3] 8.41%  
Spread [3] 4.00%  
Principal [4],[5] $ 22.6  
Amortized Cost [4],[5] 21.5  
Fair Value [4],[5] $ 20.1  
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, Second lien senior secured loan    
Coupon 11.98% [3] 8.00% [1]
Spread 7.25% [3] 7.00% [1]
Principal $ 55.0 [4],[5] $ 55.0 [2],[7]
Amortized Cost 55.0 [4],[5] 55.0 [2],[7]
Fair Value $ 48.9 [4],[5] $ 55.0 [2],[7]
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured loan    
Coupon 11.83% [3] 9.00% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 106.2 [4],[5] $ 117.7 [2],[7]
Amortized Cost 106.2 [4],[5] 117.7 [2],[7]
Fair Value $ 104.0 [4],[5] $ 117.7 [2],[7]
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured revolving loan    
Coupon [3] 12.36%  
Spread [3] 8.00%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Polymer Solutions Group, LLC, First lien senior secured loan    
Coupon [3] 8.92%  
Spread [3] 4.75%  
Principal [4],[5] $ 0.0  
Amortized Cost [4],[5] 0.0  
Fair Value [4],[5] $ 0.0  
Investment, Identifier [Axis]: Poplicus Incorporated, Warrant to purchase shares of Series C preferred stock    
Shares 2,402,991 2,402,991
Amortized Cost [2]   $ 0.1
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Poplicus Incorporated, Warrant to purchase up to 2,402,991 shares of Series C preferred stock    
Amortized Cost $ 0.1  
Fair Value $ 0.0  
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase shares of common stock    
Shares   1,112,022
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase shares of series D-1 preferred stock    
Shares   101,555
Amortized Cost [2]   $ 0.0
Fair Value [2]   0.0
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase up to 1,112,022 shares of common stock    
Shares 1,112,022  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase up to 101,555 shares of series D-1 preferred stock    
Shares 101,555  
Amortized Cost $ 0.0  
Fair Value 0.0  
Investment, Identifier [Axis]: Potomac Intermediate Holdings II LLC    
Fair Value $ 143.2 $ 179.7
Investment, Identifier [Axis]: Potomac Intermediate Holdings II LLC, Series A units    
Shares 226,884,442 220,884,442
Amortized Cost $ 185.7 $ 179.7
Fair Value $ 143.2 $ 179.7
Investment, Identifier [Axis]: PracticeTek Purchaser, LLC and GSV PracticeTek Holdings, LLC, Class A units    
Coupon, PIK [1]   8.00%
Shares   11,804,000
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 8.2
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., Class A units    
Shares 88,420 88,420
Amortized Cost $ 13.4 [5] $ 13.4 [2]
Fair Value $ 26.5 [5] $ 13.4 [2]
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan    
Coupon 10.42% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 11.7 [4],[5],[6] $ 45.8 [2],[7],[8]
Amortized Cost 11.7 [4],[5],[6] 45.8 [2],[7],[8]
Fair Value $ 11.4 [4],[5],[6] $ 45.4 [2],[7],[8]
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan 2    
Coupon [3] 10.42%  
Spread [3] 6.00%  
Principal [4],[5],[6] $ 4.0  
Amortized Cost [4],[5],[6] 4.0  
Fair Value [4],[5],[6] $ 3.9  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan    
Coupon [3] 10.18%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 14.7  
Amortized Cost [4],[5],[6] 14.7  
Fair Value [4],[5],[6] $ 14.7  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 2    
Coupon [3] 10.43%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 3    
Coupon [3] 10.18%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured revolving loan    
Coupon [3] 10.18%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 6.2  
Amortized Cost [4],[5],[6] 6.2  
Fair Value [4],[5],[6] $ 6.2  
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured loan    
Coupon 10.38% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 27.3 [4],[5] $ 27.5 [2],[7]
Amortized Cost 27.3 [4],[5] 27.5 [2],[7]
Fair Value $ 25.6 [4],[5] $ 27.3 [2],[7]
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured revolving loan    
Coupon [3] 10.38%  
Spread [3] 6.00%  
Principal [4],[5] $ 2.3  
Amortized Cost [4],[5] 2.3  
Fair Value [4],[5] $ 2.2  
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., Limited partner interests    
Shares (as a percent) 4.58% 4.58%
Amortized Cost $ 4.7 [5] $ 4.7 [2]
Fair Value $ 2.8 [5] $ 4.1 [2]
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, Class A units    
Shares 9,775 9,775
Amortized Cost $ 9.8 [5] $ 9.8 [2]
Fair Value $ 12.8 [5] $ 17.5 [2]
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured loan    
Coupon 7.92% [3] 3.72% [1]
Spread 3.75% [3] 3.50% [1]
Principal $ 8.6 [4],[5] $ 8.6
Amortized Cost 8.5 [4],[5] 8.6
Fair Value 8.1 [4],[5] $ 8.6
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured revolving loan    
Coupon [1]   3.41%
Spread [1]   3.25%
Principal 0.0 [15] $ 12.0 [2],[14]
Amortized Cost 0.0 [15] 12.0 [2],[14]
Fair Value $ 0.0 [15] $ 12.0 [2],[14]
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, Second lien senior secured loan    
Coupon 11.67% [3] 7.72% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 67.1 [5] $ 67.1 [2]
Amortized Cost 66.8 [5] 66.7 [2]
Fair Value $ 64.4 [5] 67.1 [2]
Investment, Identifier [Axis]: Prime Buyer, L.L.C., First lien senior secured revolving loan    
Coupon [3] 9.88%  
Spread [3] 5.25%  
Principal [4],[5] $ 2.7  
Amortized Cost [4],[5] 2.0  
Fair Value [4],[5] 2.6  
Investment, Identifier [Axis]: Primrose Holding Corporation    
Fair Value $ 0.0 $ 27.0
Investment, Identifier [Axis]: Primrose Holding Corporation, Common stock    
Shares   7,227
Amortized Cost   $ 4.6
Fair Value   $ 27.0
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., First lien senior secured loan    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.7 [4],[5],[6] $ 35.8 [2],[7],[8]
Amortized Cost 0.7 [4],[5],[6] 35.8 [2],[7],[8]
Fair Value $ 0.7 [4],[5],[6] $ 35.8 [2],[7],[8]
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Senior preferred stock    
Coupon [3] 16.73%  
Coupon, PIK 7.00% [3] 13.00% [1]
Spread 12.00% [3] 12.00% [1]
Shares 65,761 65,761
Amortized Cost $ 69.2 [5],[6] $ 64.4 [2],[7],[8]
Fair Value $ 73.2 [5],[6] $ 68.3 [2],[7],[8]
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Warrant to purchase shares of common stock    
Shares   527,226
Amortized Cost [8]   $ 4.0
Fair Value [8]   $ 3.4
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Warrant to purchase up to 527,226 units of common stock    
Shares 527,226  
Amortized Cost [5],[6] $ 4.0  
Fair Value [5],[6] $ 2.8  
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC, Class A units    
Shares 7,900,000 7,900,000
Amortized Cost $ 7.9 [5] $ 7.9 [2]
Fair Value $ 8.4 [5] $ 7.9 [2]
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC, First lien senior secured loan    
Coupon 10.47% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 65.0 [4],[5] $ 93.8 [2],[7]
Amortized Cost 65.0 [4],[5] 93.8 [2],[7]
Fair Value 63.1 [4],[5] 92.8 [2],[7]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC    
Fair Value $ 97.3 $ 56.3
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, Class A units    
Shares 113,617 113,617
Amortized Cost $ 4.9 [5] $ 4.9 [2]
Fair Value $ 34.3 [5] $ 0.6 [2]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan    
Coupon [1]   6.00%
Coupon, PIK [1]   3.10%
Spread [1]   5.00%
Principal [2],[7]   $ 15.0
Amortized Cost [2],[7]   14.9
Fair Value [2],[7]   $ 15.0
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 1    
Coupon [3] 12.85%  
Coupon, PIK [3] 9.85%  
Spread [3] 8.50%  
Principal [4],[5] $ 39.1  
Amortized Cost [4],[5] 39.1  
Fair Value [4],[5] $ 39.1  
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 2    
Coupon [3] 11.85%  
Coupon, PIK 2.59% [3] 9.75% [1]
Spread 7.50% [3] 8.50% [1]
Principal $ 15.4 [4],[5] $ 34.9 [2],[7]
Amortized Cost 15.4 [4],[5] 34.9 [2],[7]
Fair Value $ 15.4 [4],[5] $ 34.9 [2],[7]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 3    
Coupon 11.88% [3] 8.50% [1]
Coupon, PIK 2.57% [3] 2.50% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 7.6 [4],[5] $ 0.8 [2],[7]
Amortized Cost 7.6 [4],[5] 0.8 [2],[7]
Fair Value $ 7.6 [4],[5] $ 0.8 [2],[7]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 4    
Coupon [3] 11.88%  
Coupon, PIK 2.57% [3] 6.00% [1]
Spread 7.50% [3] 5.00% [1]
Principal $ 0.9 [4],[5] $ 5.0 [2],[7]
Amortized Cost 0.9 [4],[5] 5.0 [2],[7]
Fair Value $ 0.9 [4],[5] $ 5.0 [2],[7]
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., First lien senior secured loan    
Coupon, PIK [3] 12.00%  
Principal [5] $ 17.1  
Amortized Cost [5] 16.1  
Fair Value [5] $ 17.1  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Second lien senior secured loan    
Coupon [3] 14.00%  
Principal [5] $ 0.1  
Amortized Cost [5] 0.0  
Fair Value [5] $ 0.1  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Series E preferred stock    
Shares 219,035  
Amortized Cost [5] $ 0.7  
Fair Value [5] $ 0.6  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Warrant to purchase up to 3,280,444 shares of common stock    
Shares 3,223,122  
Amortized Cost [5] $ 1.7  
Fair Value [5] $ 0.8  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Warrant to purchase up to 57,322 shares of common stock    
Shares 57,322  
Amortized Cost [5] $ 0.2  
Fair Value [5] $ 0.2  
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P., First lien senior secured loan    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.25% [1]
Principal $ 5.5 [4],[5] $ 3.9 [2],[7]
Amortized Cost 5.5 [4],[5] 3.9 [2],[7]
Fair Value $ 5.4 [4],[5] $ 3.9 [2],[7]
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P., Limited partnership units    
Shares 1,624,000 1,624,000
Amortized Cost $ 1.6 [5] $ 1.6 [2]
Fair Value $ 1.5 [5] $ 1.6 [2]
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., Class A common stock    
Shares 7,445 7,445
Amortized Cost $ 7.4 [5] $ 7.4 [2]
Fair Value $ 14.4 [5] $ 16.8 [2]
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., Class B common stock    
Shares 1,841,609 1,841,609
Amortized Cost $ 0.1 [5] $ 0.1 [2]
Fair Value $ 0.1 [5] $ 0.2 [2]
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., First lien senior secured loan    
Coupon [3] 8.39%  
Spread [3] 4.00%  
Principal [5],[11] $ 2.8  
Amortized Cost [5],[11] 2.8  
Fair Value [5],[11] $ 2.8  
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc., First lien senior secured loan    
Coupon 9.99% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 36.2 [4],[5] $ 36.6 [2],[7]
Amortized Cost 36.2 [4],[5] 36.6 [2],[7]
Fair Value $ 34.7 [4],[5] $ 35.8 [2],[7]
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc., Preferred shares    
Coupon, PIK 14.23% [3] 10.50% [1]
Spread 9.50% [3] 9.50% [1]
Shares 26,436 26,436
Amortized Cost $ 31.9 [5] $ 28.5 [2],[7]
Fair Value $ 30.2 [5] $ 28.5 [2],[7]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., Class A units    
Coupon, PIK [1]   9.00%
Shares   1,599
Amortized Cost [2]   $ 1.9
Fair Value [2]   $ 1.9
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., Class B units    
Shares 588,636 588,636
Amortized Cost $ 0.0 [5] $ 0.0 [2]
Fair Value $ 9.3 [5] $ 0.8 [2]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan    
Coupon [1]   9.25%
Spread [1]   8.25%
Principal [7]   $ 44.1
Amortized Cost [7]   44.1
Fair Value [7]   $ 44.1
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 1    
Coupon [3] 12.07%  
Spread [3] 7.75%  
Principal [4],[5] $ 43.6  
Amortized Cost [4],[5] 43.6  
Fair Value [4],[5] $ 43.6  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 2    
Coupon 12.07% [3] 9.25% [1]
Spread 7.75% [3] 8.25% [1]
Principal $ 14.3 [4],[5] $ 12.9 [2],[7]
Amortized Cost 14.3 [4],[5] 12.9 [2],[7]
Fair Value $ 14.3 [4],[5] $ 12.9 [2],[7]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 3    
Coupon 12.07% [3] 9.25% [1]
Spread 7.75% [3] 8.25% [1]
Principal $ 12.8 [4],[5] $ 19.4 [2],[7]
Amortized Cost 12.8 [4],[5] 19.4 [2],[7]
Fair Value $ 12.8 [4],[5] $ 19.4 [2],[7]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 4    
Coupon [3] 12.07%  
Spread [3] 7.75%  
Principal [4],[5] $ 4.9  
Amortized Cost [4],[5] 4.9  
Fair Value [4],[5] $ 4.9  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured revolving loan    
Coupon 12.07% [3] 10.50% [1]
Spread 7.75% [3] 7.25% [1]
Principal $ 2.1 [4],[5],[13] $ 0.8 [2],[7],[14]
Amortized Cost 2.0 [4],[5],[13] 0.7 [2],[7],[14]
Fair Value $ 2.1 [4],[5],[13] $ 0.8 [2],[7],[14]
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp. (dba Wellsky), Second lien senior secured loan    
Coupon [1]   7.25%
Spread [1]   6.50%
Principal [2],[7]   $ 193.1
Amortized Cost [2],[7]   193.1
Fair Value [2],[7]   $ 193.1
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., Second lien senior secured loan    
Coupon [3] 10.88%  
Spread [3] 6.50%  
Principal [4],[5] $ 193.1  
Amortized Cost [4],[5] 193.1  
Fair Value [4],[5] $ 181.5  
Investment, Identifier [Axis]: Proofpoint, Inc., First lien senior secured loan    
Coupon 7.98% [3] 3.75% [1]
Spread 3.25% [3] 3.25% [1]
Principal $ 1.0 [4],[5],[11] $ 1.0 [2],[7],[12]
Amortized Cost 0.9 [4],[5],[11] 1.0 [2],[7],[12]
Fair Value $ 0.9 [4],[5],[11] $ 1.0 [2],[7],[12]
Investment, Identifier [Axis]: Proofpoint, Inc., Second lien senior secured loan    
Coupon 10.98% [3] 6.75% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 34.6 [4],[5] $ 34.6 [2],[7]
Amortized Cost 34.4 [4],[5] 34.4 [2],[7]
Fair Value $ 34.6 [4],[5] $ 34.6 [2],[7]
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC, Class A units    
Shares 1,001  
Amortized Cost [5] $ 9.7  
Fair Value [5] $ 11.0  
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC, First lien senior secured loan    
Coupon [3] 10.47%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.4  
Amortized Cost [4],[5] 1.4  
Fair Value [4],[5] $ 1.4  
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan    
Coupon 11.63% [3] 8.00% [1]
Coupon, PIK 1.25% [3] 1.25% [1]
Spread 7.25% [3] 7.00% [1]
Principal $ 16.9 [4],[5] $ 18.2 [7]
Amortized Cost 16.9 [4],[5] 18.2 [7]
Fair Value $ 16.9 [4],[5] $ 16.8 [7]
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan 2    
Coupon 11.63% [3] 8.00% [1]
Coupon, PIK 1.25% [3] 1.25% [1]
Spread 7.25% [3] 7.00% [1]
Principal $ 0.1 [4],[5] $ 6.4 [2],[7]
Amortized Cost 0.1 [4],[5] 6.4 [2],[7]
Fair Value $ 0.1 [4],[5] $ 5.8 [2],[7]
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured revolving loan    
Coupon 11.60% [3] 8.00% [1]
Coupon, PIK 1.25% [3] 1.25% [1]
Spread 7.25% [3] 7.00% [1]
Principal $ 9.7 [4],[5],[13] $ 9.6 [2],[7],[14]
Amortized Cost 9.7 [4],[5],[13] 9.6 [2],[7],[14]
Fair Value $ 9.7 [4],[5],[13] $ 8.8 [2],[7],[14]
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, Preferred membership units    
Shares 996,833 996,833
Amortized Cost $ 1.0 $ 1.0
Fair Value $ 0.9 $ 0.5
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan    
Coupon [1]   7.25%
Spread [1]   6.25%
Principal [2],[7]   $ 8.1
Amortized Cost [2],[7]   8.1
Fair Value [2],[7]   $ 8.1
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 1    
Coupon [3] 11.02%  
Spread [3] 6.25%  
Principal [4],[5] $ 8.1  
Amortized Cost [4],[5] 8.1  
Fair Value [4],[5] $ 8.1  
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 2    
Coupon 10.43% [3] 7.50% [1]
Spread 6.25% [3] 6.50% [1]
Principal $ 6.8 [4],[5] $ 15.5 [2],[7]
Amortized Cost 6.8 [4],[5] 15.5 [2],[7]
Fair Value $ 6.8 [4],[5] $ 15.5 [2],[7]
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 3    
Coupon [3] 10.64%  
Spread [3] 6.25%  
Principal [4],[5] $ 3.7  
Amortized Cost [4],[5] 3.7  
Fair Value [4],[5] $ 3.7  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP, First lien senior secured loan    
Coupon [3] 11.11%  
Spread [3] 7.00%  
Principal [4],[5] $ 10.6  
Amortized Cost [4],[5] 10.6  
Fair Value [4],[5] $ 10.3  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP, Limited partnership interests    
Shares 992,500  
Amortized Cost [5] $ 9.9  
Fair Value [5] $ 9.9  
Investment, Identifier [Axis]: R2 Acquisition Corp., Common stock    
Shares 250,000 250,000
Amortized Cost $ 0.2 [5] $ 0.2 [2]
Fair Value $ 0.1 [5] $ 0.5 [2]
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured loan    
Coupon [3] 9.32%  
Spread [3] 5.00%  
Principal [4],[5] $ 11.5  
Amortized Cost [4],[5] 11.5  
Fair Value [4],[5] $ 11.2  
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured revolving loan    
Coupon [3] 9.28%  
Spread [3] 5.00%  
Principal [4],[5] $ 1.8  
Amortized Cost [4],[5] 1.8  
Fair Value [4],[5] $ 1.7  
Investment, Identifier [Axis]: RC V Tecmo Investor LLC, Common member units    
Shares 9,624,000 9,624,000
Amortized Cost $ 8.3 [5] $ 8.3 [2]
Fair Value 22.9 [5] $ 19.3 [2]
Investment, Identifier [Axis]: RD Holdco Inc.    
Fair Value $ 10.3  
Investment, Identifier [Axis]: RD Holdco Inc., Common stock    
Shares 458,596  
Amortized Cost $ 14.0  
Fair Value 0.0  
Investment, Identifier [Axis]: RD Holdco Inc., Second lien senior secured loan    
Principal 24.2  
Amortized Cost 22.0  
Fair Value $ 10.2  
Investment, Identifier [Axis]: RD Holdco Inc., Warrants to purchase shares of common stock    
Shares 56,372  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: RE Community Holdings GP, LLC and RE Community Holdings, LP, Limited partnership interest    
Shares (as a percent) 2.86% 2.86%
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: RE Community Holdings GP, LLC and RE Community Holdings, LP, Limited partnership interest 2    
Shares (as a percent) 2.49% 2.49%
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: RF HP SCF Investor, LLC, Membership interest    
Shares (as a percent) 10.08% 10.08%
Amortized Cost $ 12.5 [5],[6] $ 12.5 [2],[8]
Fair Value $ 25.9 [5],[6] $ 19.0 [2],[8]
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., Class A common stock    
Shares 464.90  
Amortized Cost [5] $ 4.6  
Fair Value [5] $ 5.5  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan 2    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: RMS Holdco II, LLC & RMS Group Holdings, Inc., Class A common stock    
Shares   464.9
Amortized Cost [2]   $ 4.6
Fair Value [2]   $ 4.6
Investment, Identifier [Axis]: RMS Holdco II, LLC & RMS Group Holdings, Inc., First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.75%
Principal [2],[7]   $ 23.5
Amortized Cost [2],[7]   23.5
Fair Value [2],[7]   $ 23.3
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured loan    
Coupon 9.79% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 32.8 [4],[5] $ 33.1 [7]
Amortized Cost 32.8 [4],[5] 33.1 [7]
Fair Value $ 31.8 [4],[5] $ 33.1 [7]
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured revolving loan    
Coupon [1]   7.75%
Spread [1]   4.50%
Principal [2],[7],[14]   $ 0.3
Amortized Cost [2],[7],[14]   0.3
Fair Value [2],[7],[14]   $ 0.3
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured loan    
Coupon 10.02% [3] 8.25% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 22.5 [4],[5] $ 28.5 [7]
Amortized Cost 22.5 [4],[5] 28.5 [7]
Fair Value $ 22.3 [4],[5] $ 28.5 [7]
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured revolving loan    
Coupon 11.09% [3] 8.25% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 9.8 [4],[5] $ 5.0 [2],[7]
Amortized Cost 9.8 [4],[5] 5.0 [2],[7]
Fair Value $ 9.7 [4],[5] $ 5.0 [2],[7]
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan    
Coupon [3] 8.68%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 0.4  
Amortized Cost [4],[5],[6] 0.4  
Fair Value [4],[5],[6] $ 0.4  
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan 2    
Coupon [3] 10.08%  
Spread [3] 5.75%  
Principal [4],[5],[6] $ 0.4  
Amortized Cost [4],[5],[6] 0.4  
Fair Value [4],[5],[6] $ 0.4  
Investment, Identifier [Axis]: Radwell Parent, LLC, First lien senior secured loan    
Coupon [3] 11.33%  
Spread [3] 6.75%  
Principal [4],[5] $ 19.5  
Amortized Cost [4],[5] 18.9  
Fair Value [4],[5] $ 18.9  
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC, Class A common units    
Shares 2,880,582 2,880,582
Amortized Cost $ 3.5 $ 3.5
Fair Value $ 5.9 $ 4.8
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC, First lien senior secured loan    
Coupon 10.23% [3] 7.00% [1]
Spread 5.50% [3] 6.00% [1]
Principal $ 8.5 [4],[5],[6] $ 28.5 [2],[7],[8]
Amortized Cost 8.5 [4],[5],[6] 28.5 [2],[7],[8]
Fair Value $ 8.2 [4],[5],[6] $ 28.2 [2],[7],[8]
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan    
Coupon 11.48% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 49.7 [4],[5] $ 93.2 [2],[7]
Amortized Cost 49.7 [4],[5] 93.2 [2],[7]
Fair Value $ 49.7 [4],[5] $ 93.2 [2],[7]
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan 2    
Coupon 11.48% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 0.1 [4],[5] $ 8.8 [2],[7]
Amortized Cost 0.1 [4],[5] 8.8 [2],[7]
Fair Value $ 0.1 [4],[5] $ 8.8 [2],[7]
Investment, Identifier [Axis]: RealPage, Inc., Second lien senior secured loan    
Coupon 10.88% [3] 7.25% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 84.1 [4],[5] $ 84.1 [2],[7]
Amortized Cost 83.1 [4],[5] 82.9 [2],[7]
Fair Value $ 82.4 [4],[5] $ 84.1 [2],[7]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan    
Coupon 10.24% [3] 7.50% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 61.3 [4],[5] $ 61.9 [7]
Amortized Cost 61.3 [4],[5] 61.9 [7]
Fair Value $ 60.0 [4],[5] $ 61.9 [7]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 2    
Coupon 10.24% [3] 7.50% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 4.2 [4],[5] $ 4.3 [2],[7]
Amortized Cost 4.2 [4],[5] 4.3 [2],[7]
Fair Value $ 4.2 [4],[5] $ 4.3 [2],[7]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 3    
Coupon 10.24% [3] 7.50% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 0.9 [4],[5] $ 13.0 [2],[7]
Amortized Cost 0.9 [4],[5] 13.0 [2],[7]
Fair Value $ 0.9 [4],[5] $ 13.0 [2],[7]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan    
Coupon 11.17% [3] 8.00% [1]
Spread 6.75% [3] 7.00% [1]
Principal $ 0.8 [4],[5] $ 1.0 [2],[7]
Amortized Cost 0.8 [4],[5] 1.0 [2],[7]
Fair Value $ 0.8 [4],[5] $ 1.0 [2],[7]
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 2    
Coupon 11.17% [3] 8.00% [1]
Spread 6.75% [3] 7.00% [1]
Principal $ 0.1 [4],[5] $ 12.5 [2],[7]
Amortized Cost 0.1 [4],[5] 12.5 [2],[7]
Fair Value $ 0.1 [4],[5] $ 12.5 [2],[7]
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 3    
Coupon [3] 11.17%  
Spread [3] 6.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, Series D units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 19,592,999 5,291,723
Amortized Cost $ 20.5 $ 5.7
Fair Value $ 33.9 $ 11.6
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [7]   $ 25.0
Amortized Cost [7]   25.0
Fair Value [7]   $ 25.0
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 1    
Coupon [3] 12.74%  
Coupon, PIK [3] 2.00%  
Spread [3] 8.00%  
Principal [4],[5] $ 23.7  
Amortized Cost [4],[5] 23.7  
Fair Value [4],[5] $ 22.9  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 2    
Coupon 10.15% [3] 8.50% [1]
Coupon, PIK [3] 2.00%  
Spread 5.75% [3] 7.50% [1]
Principal $ 1.3 [4],[5] $ 1.1 [7]
Amortized Cost 1.3 [4],[5] 1.1 [7]
Fair Value $ 1.3 [4],[5] $ 1.1 [7]
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan    
Coupon [1]   8.50%
Coupon, PIK [1]   2.00%
Spread [1]   7.50%
Principal [2],[7],[14]   $ 12.1
Amortized Cost [2],[7],[14]   12.1
Fair Value [2],[7],[14]   $ 12.1
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 1    
Coupon [3] 14.50%  
Coupon, PIK [3] 2.00%  
Spread [3] 10.00%  
Principal [4],[5],[13] $ 35.5  
Amortized Cost [4],[5],[13] 35.5  
Fair Value [4],[5],[13] $ 34.4  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 2    
Coupon 14.32% [3] 8.50% [1]
Coupon, PIK 4.96% [3] 2.00% [1]
Spread 10.00% [3] 7.50% [1]
Principal $ 1.0 [4],[5] $ 0.6 [2],[7]
Amortized Cost 0.9 [4],[5] 0.6 [2],[7]
Fair Value $ 1.0 [4],[5] $ 0.6 [2],[7]
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase shares of common stock    
Shares   5,393,194
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase shares of common stock 2    
Shares   987
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase up to 5,393,194 shares of common stock    
Shares 5,393,194  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase up to 987 shares of common stock    
Shares 987  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P., First lien senior secured loan    
Coupon 9.38% [3] 6.50% [1]
Spread 5.00% [3] 5.50% [1]
Principal $ 2.7 [4],[5] $ 37.9 [2],[7]
Amortized Cost 2.7 [4],[5] 37.9 [2],[7]
Fair Value $ 2.7 [4],[5] $ 37.5 [2],[7]
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P., Limited partner interests    
Shares (as a percent) 1.13% 1.13%
Amortized Cost $ 2.7 [5] $ 2.7 [2]
Fair Value $ 2.6 [5] $ 2.6 [2]
Investment, Identifier [Axis]: Relativity ODA LLC, First lien senior secured loan    
Coupon, PIK 11.89% [3] 8.50% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 22.5 [4],[5] $ 59.8 [2],[7]
Amortized Cost 22.5 [4],[5] 59.8 [2],[7]
Fair Value $ 22.5 [4],[5] $ 59.8 [2],[7]
Investment, Identifier [Axis]: Repairify, Inc. and Repairify Holdings, LLC, Class A common units    
Shares 163,820 163,820
Amortized Cost $ 4.9 [5] $ 4.9 [2]
Fair Value $ 4.4 [5] $ 4.8 [2]
Investment, Identifier [Axis]: Respicardia, Inc., Warrant to purchase shares of Series C preferred stock    
Shares   99,094
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 1    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.7  
Amortized Cost [4],[5] 0.7  
Fair Value [4],[5] $ 0.6  
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 2    
Coupon [3] 10.46%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.0  
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.75%
Principal [2],[7],[8]   $ 9.5
Amortized Cost [2],[7],[8]   9.5
Fair Value [2],[7],[8]   $ 9.5
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 1    
Coupon [3] 9.88%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 0.3  
Amortized Cost [4],[5],[6] 0.3  
Fair Value [4],[5],[6] $ 0.3  
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 2    
Coupon 9.88% [3] 4.34% [1]
Spread 5.50% [3] 4.25% [1]
Principal $ 0.1 [4],[5],[6] $ 0.7 [8]
Amortized Cost 0.1 [4],[5],[6] 0.7 [8]
Fair Value $ 0.1 [4],[5],[6] $ 0.7 [8]
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 3    
Coupon 9.88% [3] 4.35% [1]
Spread 5.50% [3] 4.25% [1]
Principal $ 0.1 [4],[5],[6] $ 7.7 [2],[8]
Amortized Cost 0.1 [4],[5],[6] 7.7 [2],[8]
Fair Value 0.1 [4],[5],[6] $ 7.7 [2],[8]
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [6],[15] 0.0  
Amortized Cost 0.0 [6],[15] $ 0.0 [8],[16]
Fair Value $ 0.0 [6],[15] $ 0.0 [8],[16]
Investment, Identifier [Axis]: Riser Merger Sub, Inc., First lien senior secured loan    
Coupon [3] 9.33%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.7  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] $ 0.7  
Investment, Identifier [Axis]: Riverview Power LLC, First lien senior secured loan    
Coupon 13.73% [3] 10.00% [1]
Spread 9.00% [3] 9.00% [1]
Principal $ 57.6 [4],[5] $ 54.2 [2],[7]
Amortized Cost 56.7 [4],[5] 53.7 [2],[7]
Fair Value $ 57.6 [4],[5] $ 54.2 [2],[7]
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured loan    
Coupon 10.38% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 16.9 [4],[5] $ 17.1 [2],[7]
Amortized Cost 16.9 [4],[5] 17.1 [2],[7]
Fair Value $ 16.1 [4],[5] $ 16.9 [2],[7]
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured revolving loan    
Coupon 10.38% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 1.3 [4],[5] $ 0.4 [2],[7]
Amortized Cost 1.3 [4],[5] 0.4 [2],[7]
Fair Value 1.2 [4],[5] 0.3 [2],[7]
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc.    
Fair Value   $ 21.0
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Common stock    
Shares   458,596
Amortized Cost   $ 14.0
Fair Value   $ 0.0
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Second lien senior secured loan    
Coupon, PIK [1]   11.25%
Spread [1]   9.75%
Principal [2],[7]   $ 22.0
Amortized Cost [2],[7]   22.0
Fair Value [2],[7]   $ 21.0
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Warrant to purchase shares of common stock    
Shares   56,372
Amortized Cost   $ 0.0
Fair Value   0.0
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC)    
Fair Value $ 0.0 $ 0.2
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Class B common units    
Shares 126,278,000 126,278,000
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.0 $ 0.2
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Common units    
Shares 1,116,879 1,116,879
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Warrant to purchase units    
Shares   3,157,895
Amortized Cost   $ 0.0
Fair Value   $ 0.0
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Warrant to purchase up to 3,157,895 units    
Shares 3,157,895  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: SCI PH Parent, Inc., Series B shares    
Shares 11.4764 11.4764
Amortized Cost $ 1.1 [5] $ 1.1 [2]
Fair Value $ 4.2 [5] $ 1.2 [2]
Investment, Identifier [Axis]: SCIH Salt Holdings Inc., First lien senior secured revolving loan    
Coupon 8.15% [3] 5.00% [1]
Spread 4.00% [3] 4.00% [1]
Principal $ 2.3 [4],[5],[13] $ 2.1 [2],[7],[14]
Amortized Cost 2.2 [4],[5],[13] 2.0 [2],[7],[14]
Fair Value $ 2.2 [4],[5],[13] $ 1.9 [2],[7],[14]
Investment, Identifier [Axis]: SCM Insurance Services Inc., First lien senior secured loan    
Coupon 11.16% [3] 6.00% [1]
Spread 6.25% [3] 5.00% [1]
Principal $ 61.1 [4],[5],[6] $ 20.4 [2],[7],[8]
Amortized Cost 64.2 [4],[5],[6] 20.6 [2],[7],[8]
Fair Value $ 61.1 [4],[5],[6] $ 20.4 [2],[7],[8]
Investment, Identifier [Axis]: SCM Insurance Services Inc., Second lien senior secured loan    
Coupon [1]   10.00%
Spread [1]   9.00%
Principal [2],[7],[8]   $ 60.0
Amortized Cost [2],[7],[8]   60.5
Fair Value [2],[7],[8]   $ 60.0
Investment, Identifier [Axis]: SE1 Generation, LLC, Senior subordinated loan    
Coupon 12.25% [3] 10.25% [1]
Coupon, PIK 5.50% [3] 5.50% [1]
Principal $ 57.5 [5] $ 58.8 [2]
Amortized Cost 57.5 [5] 58.8 [2]
Fair Value $ 57.5 [5] $ 57.0 [2]
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan    
Coupon [1]   5.75%
Spread [1]   4.75%
Principal [7]   $ 10.1
Amortized Cost [7]   10.1
Fair Value [7]   $ 10.1
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 1    
Coupon [3] 9.48%  
Spread [3] 4.75%  
Principal [4],[5] $ 10.0  
Amortized Cost [4],[5] 10.0  
Fair Value [4],[5] $ 9.8  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 2    
Coupon 9.48% [3] 5.75% [1]
Spread 4.75% [3] 4.75% [1]
Principal $ 6.2 [4],[5] $ 6.3 [7]
Amortized Cost 6.2 [4],[5] 6.3 [7]
Fair Value $ 6.1 [4],[5] $ 6.3 [7]
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 3    
Coupon [3] 9.48%  
Spread [3] 4.75%  
Principal [4],[5] $ 0.4  
Amortized Cost [4],[5] 0.4  
Fair Value [4],[5] $ 0.4  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured revolving loan    
Coupon [3] 9.48%  
Spread [3] 4.75%  
Principal [4] $ 8.3  
Amortized Cost [4] 8.3  
Fair Value [4] $ 8.1  
Investment, Identifier [Axis]: SG Acquisition, Inc., First lien senior secured loan    
Coupon 9.17% [3] 5.50% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 33.8 [4],[5] $ 35.6 [7]
Amortized Cost 33.8 [4],[5] 35.6 [7]
Fair Value 33.5 [4],[5] $ 35.6 [7]
Investment, Identifier [Axis]: SHO Holding I Corporation, Second lien senior secured loan    
Coupon, PIK [1]   9.54%
Spread [1]   8.54%
Principal 124.9 [5],[9] $ 116.2 [2],[7]
Amortized Cost 120.4 [5],[9] 115.6 [2],[7]
Fair Value $ 82.4 [5],[9] $ 98.9 [2],[7]
Investment, Identifier [Axis]: SK SPV IV, LLC, Series A common stock    
Shares   12,500
Amortized Cost [2]   $ 0.6
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: SK SPV IV, LLC, Series B common stock    
Shares   12,500
Amortized Cost [2]   $ 0.6
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc., Series A units    
Shares 8,041 8,041
Amortized Cost $ 8.0 [5] $ 8.0 [2]
Fair Value $ 0.1 [5] $ 9.6 [2]
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc., Series B units    
Shares 804,142 804,142
Amortized Cost $ 0.0 [5] $ 0.0 [2]
Fair Value $ 9.3 [5] $ 0.0 [2]
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, Class A-2 units    
Shares 4,812  
Amortized Cost [5] $ 4.9  
Fair Value [5] $ 4.8  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 1    
Coupon, PIK [3] 12.34%  
Spread [3] 7.50%  
Principal [4],[5] $ 61.1  
Amortized Cost [4],[5] 56.7  
Fair Value [4],[5] $ 56.2  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 2    
Coupon [3] 12.19%  
Spread [3] 7.50%  
Principal [4],[5] $ 22.7  
Amortized Cost [4],[5] 22.7  
Fair Value [4],[5] $ 20.9  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, Warrant to purchase up to 6,118 Class A-2 units    
Shares 6,118  
Amortized Cost [5] $ 4.7  
Fair Value [5] $ 4.7  
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, First lien senior secured loan    
Coupon [1]   10.22%
Spread [1]   9.22%
Principal [2],[7]   $ 21.4
Amortized Cost [2],[7]   21.4
Fair Value [2],[7]   $ 19.9
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Limited partnership class A-1 units    
Shares 2,173 2,173
Amortized Cost $ 1.1 [5] $ 1.1 [2]
Fair Value $ 0.0 [5] $ 0.6 [2]
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Limited partnership class A-2 units    
Shares 2,173 2,173
Amortized Cost $ 1.1 [5] $ 1.1 [2]
Fair Value 0.0 [5] $ 0.6 [2]
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Second lien senior secured loan    
Principal [4],[5] 21.0  
Amortized Cost [4],[5] 21.0  
Fair Value [4],[5] $ 14.3  
Investment, Identifier [Axis]: SV-Burton Holdings, LLC & LBC Breeze Holdings LLC, Class A units    
Shares   4,296
Amortized Cost   $ 4.3
Fair Value   $ 4.3
Investment, Identifier [Axis]: SV-Burton Holdings, LLC & LBC Breeze Holdings LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 11.0
Amortized Cost [2],[7]   11.0
Fair Value [2],[7]   $ 10.9
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC, Class A units    
Shares 4,296  
Amortized Cost $ 4.3  
Fair Value $ 4.8  
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC, First lien senior secured loan    
Coupon [3] 9.93%  
Spread [3] 5.50%  
Principal [4],[5] $ 1.3  
Amortized Cost [4],[5] 1.3  
Fair Value [4],[5] $ 1.3  
Investment, Identifier [Axis]: SVP-Singer Holdings Inc. and SVP-Singer Holdings LP, Class A common units    
Shares 6,264,706 6,264,706
Amortized Cost $ 26.1 [5] $ 26.1 [2]
Fair Value $ 4.0 [5] $ 24.5 [2]
Investment, Identifier [Axis]: SVP-Singer Holdings Inc. and SVP-Singer Holdings LP, First lien senior secured loan    
Coupon 11.48% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 44.4 [4],[5] $ 44.9 [2],[7]
Amortized Cost 43.5 [4],[5] 43.7 [2],[7]
Fair Value $ 36.4 [4],[5] $ 42.3 [2],[7]
Investment, Identifier [Axis]: Safe Home Security, Inc., Security Systems Inc., Safe Home Monitoring, Inc., National Protective Services, Inc., Bright Integrations LLC and Medguard Alert, Inc., First lien senior secured loan    
Coupon 11.63% [3] 8.25% [1]
Spread 7.25% [3] 7.25% [1]
Principal $ 47.9 [4],[5] $ 46.2 [2],[7]
Amortized Cost 47.9 [4],[5] 46.2 [2],[7]
Fair Value $ 47.9 [4],[5] $ 46.2 [2],[7]
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan    
Coupon [3] 10.14%  
Spread [3] 5.75%  
Principal [4],[5] $ 5.9  
Amortized Cost [4],[5] 5.9  
Fair Value [4],[5] $ 5.9  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan 2    
Coupon [3] 10.13%  
Coupon, PIK [3] 1.63%  
Spread [3] 5.75%  
Principal [4],[5] $ 14.0  
Amortized Cost [4],[5] 14.0  
Fair Value [4],[5] $ 13.9  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, Series A units    
Shares 732  
Amortized Cost $ 15.6  
Fair Value $ 16.0  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P., Class A units    
Shares   3,841
Amortized Cost [2]   $ 9.5
Fair Value [2]   $ 9.5
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P., First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 5.8
Amortized Cost [2],[7]   5.8
Fair Value [2],[7]   $ 5.8
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., Class A units    
Shares 4,502  
Amortized Cost [5] $ 11.1  
Fair Value [5] $ 14.7  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured loan    
Coupon [3] 10.14%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.6  
Amortized Cost [4],[5] 0.6  
Fair Value [4],[5] $ 0.6  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured revolving loan    
Coupon [3] 10.14%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: SelectQuote, Inc., First lien senior secured loan    
Coupon 12.42% [3] 5.75% [1]
Coupon, PIK [3] 2.00%  
Spread 8.00% [3] 5.00% [1]
Principal $ 22.2 [4],[5] $ 22.6 [2],[7]
Amortized Cost 22.2 [4],[5] 22.6 [2],[7]
Fair Value 19.5 [4],[5] 22.6 [2],[7]
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC    
Fair Value $ 1,248.6 $ 987.3
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Member interest    
Shares (as a percent)   87.50%
Amortized Cost [8]   $ 0.0
Fair Value [8]   $ 0.0
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Membership interest    
Shares (as a percent) 87.50%  
Amortized Cost [6] $ 0.0  
Fair Value [6] $ 0.0  
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Subordinated certificates    
Coupon 12.77% [3] 8.21% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 1,274.1 [6],[15] $ 987.3 [8]
Amortized Cost 1,274.1 [6],[15] 987.3 [8]
Fair Value $ 1,248.6 [6],[15] 987.3 [8]
Investment, Identifier [Axis]: Service Logic Acquisition, Inc. and MSHC, Inc., First lien senior secured loan    
Coupon 9.59%  
Spread 5.50%  
Principal $ 0.1  
Amortized Cost 0.1  
Fair Value $ 0.1  
Investment, Identifier [Axis]: Shermco Intermediate Holdings, Inc., First lien senior secured revolving loan    
Coupon [3] 10.82%  
Spread [3] 6.50%  
Principal [5] $ 2.7  
Amortized Cost [5] 2.6  
Fair Value [5] 2.7  
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC    
Fair Value $ 6.0 $ 23.1
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Class A preferred units    
Shares 50,000 50,000
Amortized Cost $ 5.0 [5] $ 5.0 [2]
Fair Value $ 1.8 [5] $ 0.4 [2]
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Class C preferred units    
Shares 50,000 50,000
Amortized Cost $ 5.0 [5] $ 5.0 [2]
Fair Value $ 1.8 [5] $ 0.4 [2]
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured loan    
Coupon 9.84% [3] 6.00% [1]
Spread 5.00% [3] 5.00% [1]
Principal $ 0.1 [4],[5],[13] $ 19.2 [2],[7]
Amortized Cost 0.1 [4],[5],[13] 19.1 [2],[7]
Fair Value $ 0.1 [4],[5],[13] $ 19.1 [2],[7]
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan    
Coupon [1]   7.25%
Spread [1]   4.00%
Principal [2],[7],[14]   $ 1.1
Amortized Cost [2],[7],[14]   1.1
Fair Value [2],[7],[14]   $ 1.1
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan 2    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7],[14]   $ 0.1
Amortized Cost [2],[7],[14]   0.1
Fair Value [2],[7],[14]   $ 0.1
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Preferred units    
Shares 14,591 14,591
Amortized Cost $ 1.6 [5] $ 1.6 [2]
Fair Value $ 2.3 [5] $ 2.0 [2]
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., Common stock    
Shares   7,598,999
Amortized Cost [2]   $ 7.6
Fair Value [2]   $ 8.9
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 27.0
Amortized Cost [7]   27.0
Fair Value [7]   $ 27.0
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured revolving loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 1.0
Amortized Cost [2],[7]   1.0
Fair Value [2],[7]   1.0
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., Common stock    
Shares 7,599,000  
Amortized Cost [5] $ 7.6  
Fair Value [5] $ 13.9  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan    
Coupon [3] 10.90%  
Spread [3] 6.00%  
Principal [4],[5] $ 26.8  
Amortized Cost [4],[5] 26.8  
Fair Value [4],[5] $ 26.8  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan 2    
Coupon [3] 10.90%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured revolving loan    
Coupon [3] 10.59%  
Spread [3] 6.00%  
Principal [4] $ 1.8  
Amortized Cost [4] 1.8  
Fair Value [4] $ 1.8  
Investment, Identifier [Axis]: SilverBow Resources, Inc., Common stock    
Shares 1,015,215  
Amortized Cost [5],[6],[11] $ 28.8  
Fair Value [5],[6],[11] $ 28.7  
Investment, Identifier [Axis]: Singer Sewing Company, SVP-Singer Holdings, LLC and SVP-Singer Holdings LP    
Fair Value   $ 0.0
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC, Common units    
Shares 684,854 684,854
Amortized Cost $ 4.8 [5] $ 4.8 [2]
Fair Value $ 1.2 [5] $ 0.7 [2]
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC, First lien senior secured loan    
Coupon 9.48% [3] 5.75% [1]
Spread 4.75% [3] 4.75% [1]
Principal $ 10.3 [4],[5] $ 11.5 [7]
Amortized Cost 10.3 [4],[5] 11.5 [7]
Fair Value $ 10.3 [4],[5] $ 9.9 [7]
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC, Common units    
Shares 1,742,623  
Amortized Cost [5] $ 6.3  
Fair Value [5] $ 8.6  
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC, First lien senior secured loan    
Coupon [3] 11.29%  
Spread [3] 6.50%  
Principal [4],[5] $ 11.9  
Amortized Cost [4],[5] 11.9  
Fair Value [4],[5] $ 11.9  
Investment, Identifier [Axis]: Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC, Common units    
Shares   1,432,835
Amortized Cost [2]   $ 4.8
Fair Value [2]   $ 5.1
Investment, Identifier [Axis]: Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC, First lien senior secured loan    
Coupon [1]   9.25%
Spread [1]   8.25%
Principal [2],[7]   $ 13.3
Amortized Cost [2],[7]   13.3
Fair Value [2],[7]   $ 13.3
Investment, Identifier [Axis]: SocialFlow, Inc., Warrant to purchase shares of Series C preferred stock    
Shares 215,331 215,331
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 0.0 [2]
Investment, Identifier [Axis]: Sophia, L.P., Second lien senior secured loan    
Coupon 12.73% [3] 9.00% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 105.9 [4],[5] $ 105.9 [2],[7]
Amortized Cost 105.9 [4],[5] 105.9 [2],[7]
Fair Value $ 103.8 [4],[5] $ 105.9 [2],[7]
Investment, Identifier [Axis]: SoundCloud Limited, Common stock    
Shares 73,422 73,422
Amortized Cost $ 0.4 [5],[6] $ 0.4 [2],[8]
Fair Value $ 0.7 [5],[6] $ 0.7 [2],[8]
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp, First lien senior secured loan    
Coupon [3] 11.18%  
Spread [3] 6.50%  
Principal [4],[5] $ 2.6  
Amortized Cost [4],[5] 2.6  
Fair Value [4],[5] $ 2.5  
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp, Limited partner interests    
Shares 1,010  
Amortized Cost [5] $ 10.2  
Fair Value [5] $ 10.5  
Investment, Identifier [Axis]: Spring Insurance Solutions, LLC, First lien senior secured loan    
Coupon 11.23% [3] 7.50% [1]
Spread 6.50% [3] 6.50% [1]
Principal $ 22.0 [4],[5] $ 19.7 [7]
Amortized Cost 22.0 [4],[5] 19.7 [7]
Fair Value $ 19.6 [4],[5] $ 18.9 [7]
Investment, Identifier [Axis]: Stamps.com Inc., First lien senior secured loan    
Coupon 10.13% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 146.8 [4],[5] $ 197.9 [2],[7]
Amortized Cost 146.8 [4],[5] 197.9 [2],[7]
Fair Value 140.9 [4],[5] 193.9 [2],[7]
Investment, Identifier [Axis]: Startec Equity, LLC    
Fair Value 0.0 0.0
Investment, Identifier [Axis]: Startec Equity, LLC, Member interest    
Amortized Cost 0.0 0.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan    
Coupon 10.54% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 51.3 [4],[5],[6] $ 50.5 [7],[8]
Amortized Cost 51.3 [4],[5],[6] 50.5 [7],[8]
Fair Value $ 50.3 [4],[5],[6] $ 50.5 [7],[8]
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 2    
Coupon 11.08% [3] 9.00% [1]
Spread 6.75% [3] 5.75% [1]
Principal $ 5.2 [4],[5],[6] $ 0.8 [2],[7],[8]
Amortized Cost 5.2 [4],[5],[6] 0.8 [2],[7],[8]
Fair Value $ 5.1 [4],[5],[6] $ 0.8 [2],[7],[8]
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 3    
Coupon [3] 13.75%  
Spread [3] 6.25%  
Principal [4],[5],[6] $ 2.5  
Amortized Cost [4],[5],[6] 2.5  
Fair Value [4],[5],[6] $ 2.4  
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Limited partnership interests    
Shares 614,950 614,950
Amortized Cost $ 6.2 [5],[6] $ 6.2 [2],[8]
Fair Value $ 7.0 [5],[6] $ 6.8 [2],[8]
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan    
Coupon 11.54% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 42.8 [4],[5] $ 42.8 [2],[7]
Amortized Cost 42.8 [4],[5] 42.8 [2],[7]
Fair Value $ 41.1 [4],[5] $ 42.8 [2],[7]
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan 2    
Coupon [3] 11.54%  
Spread [3] 6.75%  
Principal [4],[5] $ 10.3  
Amortized Cost [4],[5] 10.3  
Fair Value [4],[5] $ 9.9  
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class A redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class B redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class C redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class D redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class E redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class F redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class G redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class H redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class I redeemable shares    
Shares 3,297,791 3,297,791
Amortized Cost $ 1.6 [5],[6] $ 1.6 [2],[8]
Fair Value $ 2.2 [5],[6] $ 1.5 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., First lien senior secured loan    
Coupon 375.00% [3] 3.88% [1]
Spread [1]   3.75%
Principal $ 66.0 [5],[6] $ 70.2 [2],[8]
Amortized Cost 73.6 [5],[6] 73.6 [2],[8]
Fair Value $ 66.0 [5],[6] $ 70.3 [2],[8]
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Ordinary shares    
Shares 3,958 3,958
Amortized Cost $ 0.0 [5],[6] $ 0.0 [2],[8]
Fair Value $ 0.2 [5],[6] $ 0.0 [2],[8]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, Class A units    
Shares 79,687 74,896
Amortized Cost $ 8.0 [5] $ 7.5 [2]
Fair Value $ 9.3 [5] $ 9.2 [2]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan    
Coupon 10.13% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 52.0 [4],[5] $ 17.4 [2],[7]
Amortized Cost 52.0 [4],[5] 17.4 [2],[7]
Fair Value $ 50.4 [4],[5] $ 17.2 [2],[7]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan 2    
Coupon 10.13% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 5.3 [4],[5] $ 74.4 [2],[7]
Amortized Cost 5.3 [4],[5] 74.4 [2],[7]
Fair Value 5.2 [4],[5] 73.7 [2],[7]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured revolving loan    
Principal [4],[5],[13] 0.0  
Amortized Cost [4],[5],[13] 0.0  
Fair Value [4],[5],[13] 0.0  
Investment, Identifier [Axis]: Sundance Energy Inc.    
Fair Value $ 0.0 $ 68.6
Investment, Identifier [Axis]: Sundance Energy Inc., Common stock    
Shares   157,970
Amortized Cost [2]   $ 69.8
Fair Value [2]   $ 68.6
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan    
Coupon [1]   7.75%
Spread [1]   6.75%
Principal [2],[7]   $ 15.4
Amortized Cost [2],[7]   15.2
Fair Value [2],[7]   $ 15.3
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 1    
Coupon [3] 10.75%  
Spread [3] 6.25%  
Principal [4],[5] $ 20.1  
Amortized Cost [4],[5] 19.8  
Fair Value [4],[5] $ 19.9  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 2    
Coupon [3] 10.93%  
Spread [3] 6.25%  
Principal [4],[5] $ 0.8  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] 0.8  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured revolving loan    
Coupon [1]   7.75%
Spread [1]   6.75%
Principal [2],[7]   $ 0.9
Amortized Cost [2],[7]   0.8
Fair Value [2],[7]   $ 0.9
Investment, Identifier [Axis]: Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation, Diecast Beacon, First lien senior secured revolving loan    
Coupon [1]   0.00%
Principal [15] 0.0  
Amortized Cost 0.0 [15] $ 0.0 [16]
Fair Value $ 0.0 [15] $ 0.0 [16]
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, First lien senior secured loan    
Coupon 3.61% [3] 3.61% [1]
Principal $ 0.1 [5] $ 0.1 [2]
Amortized Cost 0.1 [5] 0.1 [2]
Fair Value $ 0.1 [5] $ 0.1 [2]
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, Senior subordinated loan    
Coupon 11.16% [3] 8.75% [1]
Coupon, PIK 5.01% [3] 4.00% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 147.9 [4],[5] $ 142.5 [2],[7]
Amortized Cost 147.9 [4],[5] 142.5 [2],[7]
Fair Value $ 136.1 [4],[5] $ 142.5 [2],[7]
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan    
Coupon [3] 7.86%  
Spread [3] 3.50%  
Principal [5],[6] $ 24.4  
Amortized Cost [5],[6] 24.4  
Fair Value [5],[6] $ 24.2  
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan 2    
Coupon [3] 8.95%  
Spread [3] 7.88%  
Principal [5],[6] $ 16.3  
Amortized Cost [5],[6] 16.3  
Fair Value [5],[6] $ 16.1  
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, First lien senior secured loan    
Coupon 3.98% [3] 3.98% [1]
Principal $ 0.3 [5] $ 0.4 [2]
Amortized Cost 0.3 [5] 0.4 [2]
Fair Value $ 0.3 [5] $ 0.4 [2]
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, Senior subordinated loan    
Coupon 10.00% [3] 8.75% [1]
Coupon, PIK 6.00% [3] 2.77% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 72.5 [4],[5] $ 69.3
Amortized Cost 72.5 [4],[5] 69.3
Fair Value $ 67.3 [4],[5] $ 69.3
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured loan    
Coupon [3] 8.69%  
Spread [3] 4.50%  
Principal [4],[5] $ 12.4  
Amortized Cost [4],[5] 12.4  
Fair Value [4],[5] $ 10.5  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured revolving loan    
Coupon [3] 10.25%  
Spread [3] 2.75%  
Principal [5] $ 3.1  
Amortized Cost [5] 3.1  
Fair Value [5] $ 2.6  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Second lien senior secured loan    
Coupon 12.07% [3] 8.63% [1]
Spread 7.88% [3] 7.88% [1]
Principal $ 76.2 [4],[5] $ 69.9 [2],[7]
Amortized Cost 76.2 [4],[5] 69.9 [2],[7]
Fair Value $ 64.8 [4],[5] $ 69.9 [2],[7]
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-1 preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 75,939 75,939
Amortized Cost $ 94.9 [5] $ 85.0 [2]
Fair Value $ 73.1 [5] $ 85.0 [2]
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-2 preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 40,115 40,115
Amortized Cost $ 47.5 [5] $ 42.6 [2]
Fair Value $ 36.6 [5] $ 42.6 [2]
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-3 preferred shares    
Coupon, PIK 11.00% [3] 11.00% [1]
Shares 16,201 16,201
Amortized Cost $ 18.5 [5] $ 16.6 [2]
Fair Value $ 14.3 [5] $ 16.6 [2]
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC, Common units    
Shares 550 550
Amortized Cost $ 0.5 $ 0.5
Fair Value $ 1.0 $ 1.0
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC, First lien senior secured loan    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 13.1 [4],[5] $ 15.3 [7]
Amortized Cost 13.1 [4],[5] 15.3 [7]
Fair Value $ 13.1 [4],[5] $ 15.3 [7]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 0.1
Amortized Cost [2],[7]   0.1
Fair Value [2],[7]   $ 0.1
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 1    
Coupon [3] 9.98%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 2    
Coupon 9.41% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 3    
Coupon 10.75% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 4    
Coupon 10.46% [3] 6.75% [1]
Spread 6.00% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 8.3 [2],[7]
Amortized Cost 0.1 [4],[5] 8.3 [2],[7]
Fair Value $ 0.1 [4],[5] $ 8.3 [2],[7]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured revolving loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7],[14]   $ 0.8
Amortized Cost [2],[7],[14]   0.8
Fair Value [2],[7],[14]   $ 0.8
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [7]   $ 6.6
Amortized Cost [7]   6.6
Fair Value [7]   $ 6.6
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan    
Coupon [3] 9.98%  
Spread [3] 5.25%  
Principal [4],[5] $ 34.4  
Amortized Cost [4],[5] 34.4  
Fair Value [4],[5] $ 34.4  
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 2    
Coupon 9.98% [3] 6.50% [1]
Spread 5.25% [3] 5.50% [1]
Principal $ 6.5 [4],[5] $ 4.0 [2],[7]
Amortized Cost 6.5 [4],[5] 4.0 [2],[7]
Fair Value $ 6.5 [4],[5] $ 4.0 [2],[7]
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 3    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [7]   $ 34.8
Amortized Cost [7]   34.8
Fair Value [7]   $ 34.8
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured revolving loan    
Coupon [3] 9.57%  
Spread [3] 5.25%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan    
Coupon 9.88% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 17.0 $ 0.6 [2],[7]
Amortized Cost 17.0 [15] 0.6 [2],[7]
Fair Value $ 16.7 [15] $ 0.6 [2],[7]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 2    
Coupon 10.13% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 14.9 [4],[5] $ 0.1 [2],[7]
Amortized Cost 14.9 [4],[5] 0.1 [2],[7]
Fair Value $ 14.7 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 3    
Coupon 10.13% [3] 6.50% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 23.2 [2],[7]
Amortized Cost 0.1 [4],[5] 23.2 [2],[7]
Fair Value $ 0.1 [4],[5] $ 23.2 [2],[7]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 4    
Coupon [1]   6.50%
Spread [1]   5.75%
Principal [7]   $ 14.9
Amortized Cost [7]   14.9
Fair Value [7]   $ 14.9
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., Class A-2 units    
Shares 4,849  
Amortized Cost $ 4.8  
Fair Value $ 5.9  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured loan    
Coupon [3] 9.48%  
Spread [3] 5.75%  
Principal [4] $ 35.1  
Amortized Cost [4] 35.1  
Fair Value [4] $ 35.1  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured revolving loan    
Coupon [3] 10.17%  
Spread [3] 5.75%  
Principal [4] $ 1.3  
Amortized Cost [4] 1.3  
Fair Value [4] $ 1.3  
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., Class A units    
Shares 37,020 37,020
Amortized Cost $ 3.8 $ 3.8
Fair Value $ 4.6 $ 2.0
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured loan    
Coupon 8.92% [3] 6.25% [1]
Coupon, PIK 0.50% [3] 0.50% [1]
Spread 4.75% [3] 5.25% [1]
Principal $ 1.4 [4],[5] $ 1.1 [2],[7]
Amortized Cost 1.4 [4],[5] 1.1 [2],[7]
Fair Value $ 1.4 [4],[5] $ 1.1 [2],[7]
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan    
Coupon 9.51% [3] 6.75% [1]
Coupon, PIK 0.50% [3] 0.50% [1]
Spread 4.75% [3] 5.75% [1]
Principal $ 0.4 [4],[5] $ 0.5 [2],[7]
Amortized Cost 0.4 [4],[5] 0.5 [2],[7]
Fair Value $ 0.4 [4],[5] $ 0.5 [2],[7]
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan 2    
Coupon [3] 10.05%  
Coupon, PIK [3] 0.50%  
Spread [3] 5.63%  
Principal [4],[5] $ 0.4  
Amortized Cost [4],[5] 0.4  
Fair Value [4],[5] $ 0.4  
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., First lien senior secured loan    
Coupon 12.29% [3] 8.00% [1]
Coupon, PIK 1.00% [3] 0.40% [1]
Spread 7.25% [3] 7.00% [1]
Principal $ 75.9 [4],[5] $ 78.3 [2],[7]
Amortized Cost 75.9 [4],[5] 78.3 [2],[7]
Fair Value $ 65.3 [4],[5] $ 73.6 [2],[7]
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., Warrant to purchase shares of common stock    
Shares   57,827
Amortized Cost [2]   $ 0.0
Fair Value [2]   0.0
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., Warrant to purchase up to 57,827 shares of common stock    
Shares 57,827  
Amortized Cost $ 0.0  
Fair Value $ 0.0  
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan    
Principal [2],[10]   8.8
Amortized Cost [2],[10]   8.1
Fair Value [2],[10]   8.8
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 2    
Principal [2],[10]   1.4
Amortized Cost [2],[10]   1.3
Fair Value [2],[10]   0.5
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 3    
Principal [2],[10]   77.8
Amortized Cost [2],[10]   67.6
Fair Value [2],[10]   $ 29.5
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 3, Secured borrowing    
Coupon   14.50%
Investment, Identifier [Axis]: Teligent, Inc, Series D preferred stock    
Shares   77,725
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Teligent, Inc, Warrant to purchase shares of common stock    
Shares   490,492
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Teligent, Inc, Warrant to purchase shares of common stock 2    
Shares   122,548
Amortized Cost [2]   $ 0.0
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Tempus Labs, Inc., First lien senior secured loan    
Coupon [3] 10.49%  
Spread [3] 7.00%  
Principal [4],[5] $ 71.4  
Amortized Cost [4],[5] 71.4  
Fair Value [4],[5] $ 69.6  
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan    
Coupon 9.98% [3] 6.60% [1]
Spread 5.60% [3] 5.60% [1]
Principal $ 5.0 [4],[5] $ 5.1 [7]
Amortized Cost 5.0 [4],[5] 5.0 [7]
Fair Value $ 5.0 [4],[5] $ 5.1 [7]
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 2    
Coupon 9.98% [3] 6.60% [1]
Spread 5.60% [3] 5.60% [1]
Principal $ 2.0 [4],[5] $ 2.1 [7]
Amortized Cost 2.0 [4],[5] 2.1 [7]
Fair Value $ 2.0 [4],[5] $ 2.1 [7]
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 3    
Coupon 9.98% [3] 6.60% [1]
Spread 5.60% [3] 5.60% [1]
Principal $ 1.8 [4],[5] $ 1.8 [7]
Amortized Cost 1.8 [4],[5] 1.8 [7]
Fair Value $ 1.8 [4],[5] $ 1.8 [7]
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: The Alaska Club Partners, LLC, Athletic Club Partners LLC and The Alaska Club, Inc., First lien senior secured loan    
Coupon 14.00% [3] 10.25% [1]
Coupon, PIK 2.00% [3] 2.00% [1]
Spread 6.50% [3] 7.00% [1]
Principal $ 12.5 [4],[5] $ 15.5 [2],[7]
Amortized Cost 12.5 [4],[5] 15.5 [2],[7]
Fair Value $ 12.5 [4],[5] $ 14.1 [2],[7]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, Class A units    
Shares 5,667,160 4,897,000
Amortized Cost $ 5.7 $ 4.9
Fair Value $ 8.5 $ 4.9
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan    
Coupon 9.57% [3] 6.75% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 0.2 [4],[5] $ 47.2 [2],[7]
Amortized Cost 0.2 [4],[5] 47.2 [2],[7]
Fair Value $ 0.2 [4],[5] $ 46.7 [2],[7]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan 2    
Coupon [3] 11.08%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan    
Coupon 10.10% [3] 8.25% [1]
Spread 6.00% [3] 5.00% [1]
Principal $ 8.9 [4],[5] $ 2.0 [2],[7]
Amortized Cost 8.9 [4],[5] 2.0 [2],[7]
Fair Value $ 8.8 [4],[5] $ 2.0 [2],[7]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan 2    
Coupon [3] 12.50%  
Spread [3] 5.00%  
Principal [4],[5] $ 2.5  
Amortized Cost [4],[5] 2.5  
Fair Value [4],[5] $ 2.5  
Investment, Identifier [Axis]: The Edelman Financial Center, LLC, Second lien senior secured loan    
Coupon [3] 11.13%  
Spread [3] 6.75%  
Principal [5],[6] $ 13.4  
Amortized Cost [5],[6] 11.8  
Fair Value [5],[6] $ 12.0  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Common units    
Shares 7,199  
Amortized Cost [6] $ 0.0  
Fair Value [6] $ 0.0  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured loan    
Coupon [3] 10.51%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 3.5  
Amortized Cost [4],[5],[6] 3.5  
Fair Value [4],[5],[6] $ 3.4  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured revolving loan    
Coupon [3] 12.00%  
Spread [3] 4.50%  
Principal [4],[5],[6] $ 0.1  
Amortized Cost [4],[5],[6] 0.1  
Fair Value [4],[5],[6] $ 0.1  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Senior subordinated loan    
Coupon, PIK [3] 12.00%  
Principal [5],[6] $ 3.0  
Amortized Cost [5],[6] 3.0  
Fair Value [5],[6] $ 2.9  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Series A preferred units    
Shares 7,199  
Amortized Cost [5],[6] $ 7.2  
Fair Value [5],[6] $ 4.8  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., Class A units    
Shares 10,744  
Amortized Cost [5] $ 11.3  
Fair Value [5] $ 15.7  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured loan    
Coupon [3] 10.43%  
Coupon, PIK [3] 2.75%  
Spread [3] 6.25%  
Principal [4],[5] $ 213.5  
Amortized Cost [4],[5] 213.5  
Fair Value [4],[5] $ 209.3  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured revolving loan    
Coupon [3] 10.07%  
Spread [3] 5.75%  
Principal [4],[5] $ 1.7  
Amortized Cost [4],[5] 1.7  
Fair Value [4],[5] $ 1.7  
Investment, Identifier [Axis]: The Teaching Company Holdings, Inc., Common stock    
Shares 15,393 15,393
Amortized Cost $ 0.0 $ 0.0 [2]
Fair Value $ 0.0 $ 1.2 [2]
Investment, Identifier [Axis]: The Teaching Company Holdings, Inc., Preferred stock    
Shares 10,663 10,663
Amortized Cost $ 1.1 [5] $ 1.1 [2]
Fair Value $ 2.5 [5] $ 2.9 [2]
Investment, Identifier [Axis]: The Ultimate Software Group, Inc. and H&F Unite Partners, L.P., First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [8],[16]   $ 0.0
Fair Value [8],[16]   $ 0.0
Investment, Identifier [Axis]: The Ultimate Software Group, Inc. and H&F Unite Partners, L.P., Limited partnership interests    
Shares   12,583,556
Amortized Cost [2],[8]   $ 12.6
Fair Value [2],[8]   $ 15.1
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class A units    
Coupon, PIK [3] 8.00%  
Shares 1,443 1,443
Amortized Cost $ 1.9 $ 1.6
Fair Value $ 3.1 $ 1.9
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class A units 2    
Shares 245 245
Amortized Cost $ 0.2 $ 0.2
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class B units    
Shares 245,194 2,167,424
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class B units 2    
Shares 2,167,424 245,194
Amortized Cost $ 0.0 $ 0.0
Fair Value $ 0.0 $ 0.0
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, First lien senior secured loan    
Coupon 9.23% [3] 5.75% [1]
Spread 4.50% [3] 4.75% [1]
Principal $ 37.4 [4],[5] $ 37.8 [7]
Amortized Cost 37.4 [4],[5] 37.8 [7]
Fair Value $ 36.7 [4],[5] $ 37.8 [7]
Investment, Identifier [Axis]: Therapy Brands Holdings LLC, Second lien senior secured loan    
Coupon 11.10% [3] 7.50% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 29.1 [4],[5] $ 20.5 [2],[7]
Amortized Cost 28.9 [4],[5] 20.3 [2],[7]
Fair Value $ 27.9 [4],[5] $ 20.5 [2],[7]
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., Second lien senior secured loan    
Coupon 11.98% [3] 8.00% [1]
Spread 7.25% [3] 7.25% [1]
Principal $ 23.0 [4],[5] $ 23.0 [2],[7]
Amortized Cost 23.0 [4],[5] 23.0 [2],[7]
Fair Value $ 22.1 [4],[5] 22.8 [2],[7]
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien secured notes    
Coupon [3] 650.00%  
Principal [5],[11] $ 88.9  
Amortized Cost [5],[11] 86.5  
Fair Value [5],[11] $ 74.9  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien senior secured loan    
Coupon [3] 9.18%  
Spread [3] 4.50%  
Principal [4],[5],[11] $ 10.9  
Amortized Cost [4],[5],[11] 10.4  
Fair Value [4],[5],[11] $ 9.7  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Limited partnership interests    
Shares 12,250,000  
Amortized Cost [5] $ 12.3  
Fair Value [5] $ 10.7  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Second lien senior secured loan    
Coupon [3] 9.00%  
Spread [3] 7.00%  
Principal [4],[5] $ 85.3  
Amortized Cost [4],[5] 83.9  
Fair Value [4],[5] $ 69.9  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Series A preferred stock    
Coupon, PIK [3] 16.59%  
Spread [3] 12.00%  
Shares 141,928  
Amortized Cost [5] $ 143.4  
Fair Value [5] 143.1  
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc.    
Fair Value $ 3.7 $ 3.9
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., Common stock    
Shares 861,000 861,000
Amortized Cost $ 6.0 $ 6.0 [2]
Fair Value $ 0.2 $ 0.4 [2]
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan    
Coupon 10.38% [3] 7.00% [1]
Spread 6.00% [3] 6.00% [1]
Principal $ 2.2 [4],[5] $ 2.2 [2],[7]
Amortized Cost 2.2 [4],[5] 2.2 [2],[7]
Fair Value $ 1.9 [4],[5] $ 1.9 [2],[7]
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan 2    
Coupon 8.38% [3] 5.00% [1]
Spread 4.00% [3] 4.00% [1]
Principal $ 1.6 [4],[5] $ 1.6 [2],[7]
Amortized Cost 1.6 [4],[5] 1.6 [2],[7]
Fair Value $ 1.6 [4],[5] $ 1.6 [2],[7]
Investment, Identifier [Axis]: Touchstone Acquisition, Inc. and Touchstone Holding, L.P., Class A preferred units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 2,149 2,149
Amortized Cost $ 3.0 [5] $ 2.7 [2]
Fair Value $ 2.1 [5] $ 2.8 [2]
Investment, Identifier [Axis]: Trader Corporation and Project Auto Finco Corp.., First lien senior secured loan    
Coupon [3] 11.40%  
Spread [3] 6.75%  
Principal [4],[5],[6] $ 12.2  
Amortized Cost [4],[5],[6] 12.2  
Fair Value [4],[5],[6] $ 11.9  
Investment, Identifier [Axis]: Triton Water Holdings, Inc., First lien senior secured loan    
Coupon 8.23% [3] 4.00% [1]
Spread 3.50% [3] 3.50% [1]
Principal $ 1.0 [4],[5],[11] $ 1.0 [2],[7],[12]
Amortized Cost 1.0 [4],[5],[11] 1.0 [2],[7],[12]
Fair Value $ 0.9 [4],[5],[11] $ 1.0 [2],[7],[12]
Investment, Identifier [Axis]: Triton Water Holdings, Inc., Senior subordinated loan    
Coupon 625.00% [3] 6.25% [1]
Principal $ 0.1 [5],[11] $ 0.1 [2],[12]
Amortized Cost 0.1 [5],[11] 0.1 [2],[12]
Fair Value $ 0.1 [5],[11] $ 0.1 [2],[12]
Investment, Identifier [Axis]: Tyden Group Holding Corp., Common stock    
Shares   5,521,203
Amortized Cost [8]   $ 2.0
Fair Value [8]   $ 3.9
Investment, Identifier [Axis]: Tyden Group Holding Corp., Preferred stock    
Shares   46,276
Amortized Cost [8]   $ 0.4
Fair Value [8]   $ 0.4
Investment, Identifier [Axis]: U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc., Common stock    
Shares 3,671,429 3,671,429
Amortized Cost $ 12.9 [5] $ 12.9 [2]
Fair Value $ 12.7 [5] $ 12.9 [2]
Investment, Identifier [Axis]: U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc., Second lien senior secured loan    
Coupon 11.62% [3] 8.00% [1]
Spread 7.50% [3] 7.50% [1]
Principal $ 147.8 [4],[5] $ 147.8 [2],[7]
Amortized Cost 147.8 [4],[5] 147.8 [2],[7]
Fair Value $ 143.3 [4],[5] $ 146.3 [2],[7]
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P., First lien senior secured revolving loan    
Coupon [3] 8.06%  
Spread [3] 3.75%  
Principal [5],[6],[13] $ 10.6  
Amortized Cost [5],[6],[13] 10.6  
Fair Value [5],[6],[13] $ 10.6  
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P., Limited partnership interests    
Shares [5],[6] 12,583,556  
Amortized Cost [5],[6] $ 12.6  
Fair Value [5],[6] $ 14.4  
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P., First lien senior secured loan    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 26.4 [4],[5] $ 40.1 [2],[7]
Amortized Cost 26.4 [4],[5] 40.1 [2],[7]
Fair Value $ 25.3 [4],[5] $ 39.7 [2],[7]
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P., Limited partner interests    
Shares (as a percent) 0.40% 0.40%
Amortized Cost $ 0.8 [5] $ 0.8 [2]
Fair Value $ 0.5 [5] $ 0.8 [2]
Investment, Identifier [Axis]: United Digestive MSO Parent, LLC, First lien senior secured loan    
Coupon [3] 9.38%  
Spread [3] 5.00%  
Principal [4],[5] $ 1.0  
Amortized Cost [4],[5] 1.0  
Fair Value [4],[5] $ 1.0  
Investment, Identifier [Axis]: VCP-EDC Co-Invest, LLC, Membership units    
Shares 2,970,000 2,970,000
Amortized Cost $ 2.8 $ 2.8
Fair Value $ 4.2 $ 0.4
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 8.8
Amortized Cost [2],[7]   8.8
Fair Value [2],[7]   $ 8.8
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan 2    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7]   $ 5.2
Amortized Cost [2],[7]   5.2
Fair Value [2],[7]   $ 5.2
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured revolving loan    
Coupon [1]   6.50%
Spread [1]   5.50%
Principal [2],[7],[14]   $ 1.3
Amortized Cost [2],[7],[14]   1.3
Fair Value [2],[7],[14]   $ 1.3
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., Class A-2 units    
Shares 7,524 7,524
Amortized Cost $ 7.5 [5] $ 7.5 [2]
Fair Value $ 8.6 [5] $ 7.5 [2]
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan    
Coupon [1]   6.75%
Spread [1]   5.75%
Principal [2],[7]   $ 6.4
Amortized Cost [2],[7]   6.4
Fair Value [2],[7]   6.4
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 1    
Coupon [3] 10.60%  
Spread [3] 6.25%  
Principal [4],[13] $ 6.2  
Amortized Cost [4],[13] 6.2  
Fair Value [4],[13] $ 6.0  
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 2    
Coupon [3] 10.52%  
Spread [3] 6.50%  
Principal [4],[5] $ 3.1  
Amortized Cost [4],[5] 3.1  
Fair Value [4],[5] 3.1  
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC    
Fair Value $ 116.1 $ 77.5
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, Class A units    
Shares 347,900 347,900
Amortized Cost $ 32.8 [5] $ 32.8 [2]
Fair Value $ 73.4 [5] $ 39.9 [2]
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan    
Coupon [3] 13.62%  
Coupon, PIK [1]   11.00%
Spread 9.50% [3] 9.50% [1]
Principal $ 27.3 [4],[5] $ 7.0 [2],[7]
Amortized Cost 27.3 [4],[5] 7.0 [2],[7]
Fair Value $ 27.3 [4],[5] $ 7.0 [2],[7]
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 2    
Coupon [3] 13.62%  
Coupon, PIK [1]   11.00%
Spread 9.50% [3] 9.50% [1]
Principal $ 9.4 [4],[5] $ 5.5 [2],[7]
Amortized Cost 9.4 [4],[5] 5.5 [2],[7]
Fair Value $ 9.4 [4],[5] $ 5.5 [2],[7]
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 3    
Coupon [3] 13.62%  
Coupon, PIK [1]   11.00%
Spread 9.50% [3] 9.50% [1]
Principal $ 6.0 [4],[5] $ 25.1 [2],[7]
Amortized Cost 6.0 [4],[5] 25.1 [2],[7]
Fair Value $ 6.0 [4],[5] $ 25.1 [2],[7]
Investment, Identifier [Axis]: VRC Companies, LLC, First lien senior secured loan    
Coupon [3] 10.97%  
Spread [3] 5.75%  
Principal [4] $ 0.0  
Amortized Cost [4] 0.1  
Fair Value [4] $ 0.0  
Investment, Identifier [Axis]: VRC Companies, LLC, Senior subordinated loan    
Coupon [3] 12.00%  
Coupon, PIK [3] 2.00%  
Principal [5] $ 5.0  
Amortized Cost [5] 5.1  
Fair Value [5] $ 4.7  
Investment, Identifier [Axis]: VSC Investors LLC, Membership interest    
Shares (as a percent) 1.95% 1.95%
Amortized Cost $ 0.0 [5],[6],[11] $ 0.3 [2],[8],[12]
Fair Value $ 0.5 [5],[6],[11] $ 0.6 [2],[8],[12]
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Class A units    
Shares 1,400 1,400
Amortized Cost $ 1.4 [5] $ 1.4 [2]
Fair Value $ 1.0 [5] $ 0.7 [2]
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, First lien senior secured loan    
Coupon [3] 7.88%  
Spread [3] 3.50%  
Principal [4],[5],[11] $ 14.8  
Amortized Cost [4],[5],[11] 14.0  
Fair Value [4],[5],[11] $ 14.2  
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan    
Coupon 12.63% [3] 9.25% [1]
Spread 8.25% [3] 8.25% [1]
Principal $ 122.7 [4],[5] $ 21.1 [2],[7]
Amortized Cost 122.7 [4],[5] 21.1 [2],[7]
Fair Value $ 121.5 [4],[5] $ 20.3 [2],[7]
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan 2    
Coupon 12.63% [3] 9.25% [1]
Spread 8.25% [3] 8.25% [1]
Principal $ 21.1 [4],[5] $ 122.7 [7]
Amortized Cost 21.1 [4],[5] 122.8 [7]
Fair Value $ 20.9 [4],[5] $ 117.9 [7]
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured loan    
Coupon [3] 10.19%  
Spread [3] 6.00%  
Principal [4],[5] $ 0.8  
Amortized Cost [4],[5] 0.8  
Fair Value [4],[5] $ 0.8  
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured revolving loan    
Coupon [3] 10.27%  
Spread [3] 6.00%  
Principal [4],[5] $ 1.1  
Amortized Cost [4],[5] 0.7  
Fair Value [4],[5] $ 1.1  
Investment, Identifier [Axis]: Verscend Holding Corp., First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Vertice Pharma UK Parent Limited, Preferred shares    
Shares 40,662 40,662
Amortized Cost $ 0.0 [6] $ 0.3 [8]
Fair Value $ 0.0 [6] $ 0.0 [8]
Investment, Identifier [Axis]: Viant Medical Holdings, Inc., First lien senior secured loan    
Coupon [3] 8.13%  
Spread [3] 3.75%  
Principal [5],[11] $ 3.2  
Amortized Cost [5],[11] 2.9  
Fair Value [5],[11] $ 2.8  
Investment, Identifier [Axis]: Visual Edge Technology, Inc., First lien senior secured loan    
Coupon 11.74% [3] 9.75% [1]
Coupon, PIK 1.25% [3] 1.25% [1]
Spread 7.00% [3] 8.25% [1]
Principal $ 32.6 [4],[5] $ 32.5 [2],[7]
Amortized Cost 32.6 [4],[5] 32.5 [2],[7]
Fair Value 29.3 [4],[5] $ 30.9 [2],[7]
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Senior subordinated loan    
Coupon, PIK [1]   12.50%
Principal 103.8 [5],[9] $ 88.6 [2]
Amortized Cost 87.5 [5],[9] 86.1 [2]
Fair Value $ 48.8 [5],[9] $ 79.7 [2]
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Warrant to purchase shares of common stock    
Shares   10,358,572
Amortized Cost [2]   $ 3.9
Fair Value [2]   $ 0.0
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Warrant to purchase up to 10,358,572 shares of common stock    
Shares 10,358,572  
Amortized Cost $ 3.9  
Fair Value $ 0.0  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, Common units    
Shares 33,293  
Amortized Cost $ 4.7  
Fair Value $ 4.4  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 1    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 33.1  
Amortized Cost [4],[5] 33.1  
Fair Value [4],[5] $ 32.4  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 2    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 14.5  
Amortized Cost [4],[5] 14.5  
Fair Value [4],[5] $ 14.2  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 3    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 11.3  
Amortized Cost [4],[5] 11.3  
Fair Value [4],[5] $ 11.0  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 4    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 10.7  
Amortized Cost [4],[5] 10.7  
Fair Value [4],[5] $ 10.5  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 5    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 4.5  
Amortized Cost [4],[5] 4.5  
Fair Value [4],[5] $ 4.4  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 6    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 7    
Coupon [3] 10.98%  
Spread [3] 6.25%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured revolving loan    
Coupon [3] 10.32%  
Spread [3] 6.25%  
Principal [4],[5],[13] $ 8.6  
Amortized Cost [4],[5],[13] 8.6  
Fair Value [4],[5],[13] $ 8.4  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 4.9
Amortized Cost [2],[7]   4.9
Fair Value [2],[7]   $ 4.9
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 2    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 33.4
Amortized Cost [7]   33.4
Fair Value [7]   $ 33.4
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 3    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 4.5
Amortized Cost [7]   4.5
Fair Value [7]   $ 4.5
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 4    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 11.4
Amortized Cost [7]   11.4
Fair Value [7]   $ 11.4
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 5    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [7]   $ 10.8
Amortized Cost [7]   10.8
Fair Value [7]   $ 10.8
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 6    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 9.0
Amortized Cost [2],[7]   9.0
Fair Value [2],[7]   $ 9.0
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured revolving loan    
Coupon [1]   7.00%
Spread [1]   6.00%
Principal [2],[7]   $ 1.5
Amortized Cost [2],[7]   1.5
Fair Value [2],[7]   $ 1.5
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan    
Coupon 10.24% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 14.7 [4],[5] $ 14.9 [7]
Amortized Cost 14.7 [4],[5] 14.9 [7]
Fair Value $ 14.2 [4],[5] $ 14.9 [7]
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan 2    
Coupon 10.24% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 0.1 [4],[5] $ 19.9 [2],[7]
Amortized Cost 0.1 [4],[5] 19.9 [2],[7]
Fair Value $ 0.1 [4],[5] $ 19.9 [2],[7]
Investment, Identifier [Axis]: Wand Newco 3, Inc., Second lien senior secured loan    
Coupon 11.63% [3] 7.43% [1]
Spread 7.25% [3] 7.25% [1]
Principal $ 182.6 [5] $ 180.2 [2]
Amortized Cost 180.9 [5] 178.2 [2]
Fair Value $ 178.9 [5] $ 180.2 [2]
Investment, Identifier [Axis]: Wash Encore Holdings, LLC, First lien senior secured loan    
Coupon 9.12% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 98.5 [4],[5] $ 135.6 [2],[7]
Amortized Cost 98.5 [4],[5] 135.6 [2],[7]
Fair Value $ 96.5 [4],[5] $ 134.2 [2],[7]
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, Class A units    
Coupon, PIK 8.00% [3] 8.00% [1]
Shares 282,200 282,200
Amortized Cost $ 3.2 $ 3.0
Fair Value $ 3.2 $ 2.7
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, First lien senior secured loan    
Coupon 10.23% [3] 6.25% [1]
Spread 5.50% [3] 5.25% [1]
Principal $ 20.4 [4],[5] $ 19.4 [7]
Amortized Cost 20.4 [4],[5] 19.4 [7]
Fair Value $ 20.4 [4],[5] $ 19.4 [7]
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, First lien senior secured revolving loan    
Coupon [1]   0.00%
Amortized Cost [16]   $ 0.0
Fair Value [16]   $ 0.0
Investment, Identifier [Axis]: Waverly Advisors, LLC, First lien senior secured loan    
Coupon [3] 10.23%  
Spread [3] 5.50%  
Principal [4],[5],[6] $ 0.6  
Amortized Cost [4],[5],[6] 0.6  
Fair Value [4],[5],[6] $ 0.6  
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured loan    
Coupon 11.48% [3] 7.75% [1]
Spread 6.75% [3] 6.75% [1]
Principal $ 48.1 [4],[5] $ 48.1 [2],[7]
Amortized Cost 48.1 [4],[5] 48.1 [2],[7]
Fair Value $ 48.1 [4],[5] $ 48.1 [2],[7]
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured revolving loan    
Coupon [3] 11.26%  
Spread [3] 6.75%  
Principal [4],[5] $ 0.3  
Amortized Cost [4],[5] 0.3  
Fair Value [4],[5] $ 0.3  
Investment, Identifier [Axis]: Wellness AcquisitionCo, Inc., First lien senior secured loan    
Coupon 9.91% [3] 6.50% [1]
Spread 5.50% [3] 5.50% [1]
Principal $ 0.1 [4],[5] $ 0.1 [2],[7]
Amortized Cost 0.1 [4],[5] 0.1 [2],[7]
Fair Value $ 0.1 [4],[5] $ 0.1 [2],[7]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 18.0 [4],[5] $ 18.2 [7]
Amortized Cost 18.0 [4],[5] 18.2 [7]
Fair Value $ 17.8 [4],[5] $ 18.2 [7]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 2    
Coupon 10.48% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.2 [4],[5] $ 9.5 [2],[7]
Amortized Cost 0.2 [4],[5] 9.5 [2],[7]
Fair Value $ 0.2 [4],[5] $ 9.5 [2],[7]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 3    
Coupon [3] 10.48%  
Spread [3] 5.75%  
Principal [4],[5] $ 0.2  
Amortized Cost [4],[5] 0.2  
Fair Value [4],[5] $ 0.2  
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured revolving loan    
Coupon [3] 10.09%  
Spread [3] 5.75%  
Principal [4],[5],[13] $ 0.8  
Amortized Cost [4],[5],[13] 0.8  
Fair Value [4],[5],[13] $ 0.8  
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, Limited partnership interests    
Shares 17,655 17,655
Amortized Cost $ 1.8 [5] $ 1.8 [2]
Fair Value $ 5.1 [5] $ 2.8 [2]
Investment, Identifier [Axis]: Winebow Holdings, Inc. and The Vintner Group, Inc., First lien senior secured loan    
Coupon 10.63% [3] 7.25% [1]
Spread 6.25% [3] 6.25% [1]
Principal $ 28.0 [4],[5] $ 28.3 [7]
Amortized Cost 28.0 [4],[5] 28.3 [7]
Fair Value $ 27.5 [4],[5] $ 28.3 [7]
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan    
Coupon, PIK [1]   8.00%
Spread [1]   7.25%
Principal [2],[7]   $ 61.6
Amortized Cost [2],[7]   61.6
Fair Value [2],[7]   $ 61.6
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 1    
Coupon, PIK [3] 11.93%  
Spread [3] 7.25%  
Principal [4],[5] $ 67.4  
Amortized Cost [4],[5] 67.4  
Fair Value [4],[5] $ 67.4  
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 2    
Coupon [3] 11.44%  
Spread [3] 7.25%  
Principal [4],[5] $ 17.3  
Amortized Cost [4],[5] 17.3  
Fair Value [4],[5] $ 17.3  
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, Class A units    
Shares 180,000 180,000
Amortized Cost $ 1.8 [5] $ 1.8 [2]
Fair Value $ 4.2 [5] $ 4.2 [2]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, Class B units    
Shares 46,363 46,363.16
Amortized Cost $ 0.9 [5] $ 0.9 [2]
Fair Value $ 1.1 [5] $ 1.1 [2]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan    
Coupon 10.13% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 37.0 [4] $ 16.3 [2],[7]
Amortized Cost 37.0 [4] 16.3 [2],[7]
Fair Value $ 36.6 [4] $ 16.1 [2],[7]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan 2    
Coupon 10.13% [3] 6.75% [1]
Spread 5.75% [3] 5.75% [1]
Principal $ 0.1 [4],[5] $ 39.3 [2],[7]
Amortized Cost 0.1 [4],[5] 39.3 [2],[7]
Fair Value $ 0.1 [4],[5] $ 39.0 [2],[7]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured revolving loan    
Coupon 12.25% [3] 6.75% [1]
Spread 4.75% [3] 5.75% [1]
Principal $ 0.2 [4] $ 1.1 [2],[7]
Amortized Cost 0.2 [4] 1.1 [2],[7]
Fair Value $ 0.2 [4] $ 1.1 [2],[7]
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan    
Coupon 9.93% [3] 6.25% [1]
Spread 5.25% [3] 5.50% [1]
Principal $ 8.2 [4],[5] $ 8.0 [2],[7]
Amortized Cost 8.2 [4],[5] 8.0 [2],[7]
Fair Value $ 8.2 [4],[5] $ 7.9 [2],[7]
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan 2    
Coupon [3] 9.68%  
Spread [3] 5.00%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] $ 0.1  
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured revolving loan    
Coupon [3] 9.47%  
Spread [3] 5.00%  
Principal [4],[5] $ 1.5  
Amortized Cost [4],[5] 1.5  
Fair Value [4],[5] $ 1.5  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured loan    
Coupon [3] 9.48%  
Spread [3] 4.75%  
Principal [4],[5] $ 0.1  
Amortized Cost [4],[5] 0.1  
Fair Value [4],[5] 0.1  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured revolving loan    
Principal [15] 0.0  
Amortized Cost [15] 0.0  
Fair Value [15] $ 0.0  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, Series A units    
Shares 4,699  
Amortized Cost $ 4.7  
Fair Value $ 5.5  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, Class A common units    
Shares 269,100  
Amortized Cost [5] $ 2.7  
Fair Value [5] $ 2.7  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, First lien senior secured loan    
Coupon [3] 11.04%  
Spread [3] 6.50%  
Principal [4],[5] $ 42.4  
Amortized Cost [4],[5] 42.4  
Fair Value [4],[5] $ 41.6  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, Series A preferred stock    
Coupon, PIK [3] 12.50%  
Shares 27,226  
Amortized Cost [5] $ 27.6  
Fair Value [5] $ 26.8  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan    
Coupon [1]   9.00%
Spread [1]   7.50%
Principal [2],[7]   $ 56.0
Amortized Cost [2],[7]   56.0
Fair Value [2],[7]   $ 56.0
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 1    
Coupon [3] 11.97%  
Spread [3] 7.75%  
Principal [4],[5] $ 55.8  
Amortized Cost [4],[5] 55.8  
Fair Value [4],[5] $ 55.2  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 2    
Coupon 11.97% [3] 9.00% [1]
Spread 7.75% [3] 7.50% [1]
Principal $ 56.0 [4],[5] $ 5.4 [2],[7]
Amortized Cost 56.0 [4],[5] 5.4 [2],[7]
Fair Value $ 55.4 [4],[5] $ 5.4 [2],[7]
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 3    
Coupon [3] 11.97%  
Spread [3] 7.75%  
Principal [4],[5] $ 24.3  
Amortized Cost [4],[5] 24.3  
Fair Value [4],[5] $ 24.1  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 4    
Coupon [3] 11.97%  
Spread [3] 7.75%  
Principal [4],[5] $ 5.4  
Amortized Cost [4],[5] 5.4  
Fair Value [4],[5] $ 5.3  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Limited partnership interest    
Shares 3,988,000 3,988,000
Amortized Cost $ 4.5 [5],[6] $ 4.5 [2],[8]
Fair Value $ 3.7 [5],[6] $ 5.4 [2],[8]
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan    
Coupon [1]   8.50%
Spread [1]   8.00%
Principal [7]   $ 22.5
Amortized Cost [7]   22.0
Fair Value [7]   $ 22.4
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 1    
Coupon [3] 12.07%  
Spread [3] 8.00%  
Principal [4],[5] $ 30.6  
Amortized Cost [4],[5] 29.8  
Fair Value [4],[5] $ 27.2  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 2    
Coupon 12.38% [3] 8.50% [1]
Spread 8.00% [3] 8.00% [1]
Principal $ 17.2 [4],[5] $ 30.6 [2],[7]
Amortized Cost 16.9 [4],[5] 29.6 [2],[7]
Fair Value $ 15.3 [4],[5] $ 30.6 [2],[7]
[1] Investments without an interest rate are non-income producing.
[2] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[3] Investments without an interest rate are non-income producing.
[4] Loan includes interest rate floor feature.
[5] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[6] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 25% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2022.
[7] Loan includes interest rate floor feature.
[8] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 16% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2021.
[9] Loan was on non-accrual status as of December 31, 2022.
[10] Loan was on non-accrual status as of December 31, 2021.
[11] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[12] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[13] As of December 31, 2022, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[14] As of December 31, 2021, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[15] As of December 31, 2022, no amounts were funded by the Company under this first lien senior secured revolving loan; however, there were letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[16] As of December 31, 2021, no amounts were funded by the Company under this first lien senior secured revolving loan; however, there were letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[17] The Company sold a participating interest of approximately $79.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $79.0 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2022, the interest rate in effect for the secured borrowing was 11.62%.
[18] The Company sold a participating interest of approximately $75.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $73.2 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2021, the interest rate in effect for the secured borrowing was 8.50%.
[19] As of December 31, 2021, the Company was party to subscription agreements to fund equity investments in private equity investment partnerships as follows:
(in millions)
Company		Total private equity commitmentsLess: funded private equity commitmentsTotal unfunded private equity commitmentsLess: private equity commitments substantially at the discretion of the CompanyTotal net adjusted unfunded private equity commitments
PCG-Ares Sidecar Investment, L.P. and PCG-Ares Sidecar Investment II, L.P.$50.0 $(12.5)$37.5 $(37.5)$— 
European Capital UK SME Debt LP60.9 (55.1)5.8 (5.8)— 
$110.9 $(67.6)$43.3 $(43.3)$— 
[20] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $40.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
[21] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $46.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
v3.22.4
CONSOLIDATED SCHEDULE OF INVESTMENTS - (Parenthetical)
€ in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
Rate
Dec. 31, 2021
USD ($)
Rate
Dec. 31, 2020
USD ($)
Dec. 31, 2022
CAD ($)
Rate
Dec. 31, 2022
EUR (€)
Rate
Dec. 31, 2022
GBP (£)
Rate
Dec. 31, 2022
NZD ($)
Rate
Dec. 31, 2021
CAD ($)
Rate
Dec. 31, 2021
EUR (€)
Rate
Dec. 31, 2021
GBP (£)
Rate
Derivative Instruments Table [Abstract]                    
Derivative Asset, Counterparty Name [Extensible Enumeration] Royal Bank of Canada [Member] Truist Financial Corporation [Member]   Royal Bank of Canada [Member] Royal Bank of Canada [Member] Royal Bank of Canada [Member] Royal Bank of Canada [Member] Truist Financial Corporation [Member] Truist Financial Corporation [Member] Truist Financial Corporation [Member]
Derivatives $ (21.0) $ (12.0)                
Schedule of Investments [Line Items]                    
% of Net Assets 227.97% 225.65%   227.97% 227.97% 227.97% 227.97% 225.65% 225.65% 225.65%
% of Total Assets 97.00% 96.00%   97.00% 97.00% 97.00% 97.00% 96.00% 96.00% 96.00%
Coupon | Rate [1]   9.50%           9.50% 9.50% 9.50%
Net unrealized gain (loss) for federal tax purposes $ (200.0) $ 100.0                
Tax cost basis 22,000.0 19,900.0                
Aggregate gross unrealized loss for federal tax purposes 1,200.0 700.0                
Aggregate gross unrealized gain for federal tax purposes 1,000.0 800.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 21,779.8 20,009.5                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total unfunded commitments 57.0 20.0                
Revolving and delayed draw loan commitments                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2,915.8 2,732.5                
Less: funded commitments (526.2) (352.3)                
Total unfunded commitments 2,389.6 2,380.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions (13.0) (3.9)                
Total net adjusted unfunded revolving and delayed draw commitments 2,376.6 2,376.3                
Revolving and delayed draw loan commitments | Previously Reported                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total unfunded commitments   2,381.0                
Total net adjusted unfunded revolving and delayed draw commitments   2,377.0                
Private equity commitments                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 119.8 110.9                
Less: funded commitments (69.2) (67.6)                
Total unfunded commitments 50.6 43.3                
Less: commitments substantially at discretion of the Company 50.6 43.3                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Senior Direct Lending Program                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4,958.0 4,127.0                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Less: funded commitments (5,127.0) (4,168.0)                
Total unfunded commitments 294.0 262.0                
Ares Capital Corporation | Senior Direct Lending Program                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Less: funded commitments (1,274.0) (987.0)                
Total unfunded commitments 68.0 62.0                
Ares Capital Corporation | Senior Direct Lending Program | Unfunded commitments                    
Schedule of Investments [Line Items]                    
Other commitment   62.0                
Subordinated certificates of the SDLP                    
Investments Activity And Fair Value Table [Abstract]                    
Interest income 146.0 138.0 $ 127.0              
Capital structuring service fees 22.0 22.0 23.0              
Fair Value $ 1,249.0 $ 987.0                
Subordinated certificates of the SDLP | Ares Capital Corporation                    
Schedule of Investments [Line Items]                    
Ownership percentage of outstanding SDLP Certificates 87.50% 87.50%   87.50% 87.50% 87.50% 87.50% 87.50% 87.50% 87.50%
Subordinated certificates of the SDLP | Ares Capital Corporation | Minimum                    
Schedule of Investments [Line Items]                    
Ownership percentage of outstanding SDLP Certificates 25.00% 25.00%   25.00% 25.00% 25.00% 25.00% 25.00% 25.00% 25.00%
Non-qualifying assets | Investments, at fair value, and other non-qualifying assets | Customer Concentration Risk                    
Schedule of Investments [Line Items]                    
% of Total Assets, non-qualifying assets 25.00% 16.00%                
Non-controlled affiliate                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) $ 29.5 $ 97.5                
Redemptions (cost) 52.4 64.5                
Sales (cost) 33.3 14.2                
Interest income 12.5 10.3                
Capital structuring service fees 0.1 0.3 1.0              
Dividend income 2.0 0.0 0.0              
Other income 0.3 1.0 0.0              
Net realized gains (losses): 6.1 67.5 16.0              
Net unrealized gains (losses): 71.0 (16.0) (2.0)              
Fair Value 364.4 373.1                
Non-controlled affiliate | Previously Reported                    
Investments Activity And Fair Value Table [Abstract]                    
Dividend income   0.6                
Net unrealized gains (losses):   (15.2)                
Controlled affiliate                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 1,994.8 757.1                
Redemptions (cost) 513.1 781.7                
Sales (cost) 0.0 57.9                
Interest income 194.5 192.1                
Capital structuring service fees 20.0 21.0 20.0              
Dividend income 228.2 100.5 75.0              
Other income 6.0 4.0 4.0              
Net realized gains (losses): (37.5) 61.3 (5.0)              
Net unrealized gains (losses): 1.0 62.0 $ 142.0              
Fair Value $ 4,119.7 2,580.4                
Controlled affiliate | Previously Reported                    
Investments Activity And Fair Value Table [Abstract]                    
Capital structuring service fees   22.9                
Other income   5.1                
Net unrealized gains (losses):   $ 61.4                
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Royal Bank of Canada, Company Settlement Date January 18, 2023                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 178.0                  
Derivative Asset, Notional Amount       $ 242            
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ (1.0)                  
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Royal Bank of Canada, Company Settlement Date January 27, 2023, Contract One                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 195.0                  
Derivative Asset, Notional Amount       $ 264            
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ (1.0)                  
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Royal Bank of Canada, Company Settlement Date January 27, 2023, Contract Two                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 12.0                  
Derivative Asset, Notional Amount       $ 17            
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ 0.0                  
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Truist Financial Corporation, Company Settlement Date January 19, 2022                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration]   Foreign currency forward contract           Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract
Derivative Liability, Notional Amount   $ 163.0                
Derivative Asset, Notional Amount               $ 209    
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset   $ (2.0)                
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Truist Financial Corporation, Company Settlement Date January 28, 2022, Contract One                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration]   Foreign currency forward contract           Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract
Derivative Liability, Notional Amount   $ 240.0                
Derivative Asset, Notional Amount               $ 309    
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset   $ (5.0)                
Open Forward Foreign Currency Contract, Identifier [Axis]: CAD, Truist Financial Corporation, Company Settlement Date January 28, 2022, Contract Two                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration]   Foreign currency forward contract           Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract
Derivative Liability, Notional Amount   $ 1.0                
Derivative Asset, Notional Amount               $ 2    
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset   $ 0.0                
Open Forward Foreign Currency Contract, Identifier [Axis]: EUR, Royal Bank of Canada, Company Settlement Date January 27, 2023                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 159.0                  
Derivative Asset, Notional Amount | €         € 158          
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ (10.0)                  
Open Forward Foreign Currency Contract, Identifier [Axis]: EURO, Truist Financial Corporation, Company Settlement Date January 28, 2022, Contract One                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration]   Foreign currency forward contract           Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract
Derivative Liability, Notional Amount   $ 172.0                
Derivative Asset, Notional Amount | €                 € 153  
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset   $ (2.0)                
Open Forward Foreign Currency Contract, Identifier [Axis]: GBP, Royal Bank of Canada, Company Settlement Date January 27, 2023                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 145.0                  
Derivative Asset, Notional Amount | £           £ 125        
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ (6.0)                  
Open Forward Foreign Currency Contract, Identifier [Axis]: GBP, Truist Financial Corporation, Company Settlement Date January 28, 2022, Contract Two                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration]   Foreign currency forward contract           Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract
Derivative Liability, Notional Amount   $ 126.0                
Derivative Asset, Notional Amount | £                   £ 95
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset   $ (3.0)                
Open Forward Foreign Currency Contract, Identifier [Axis]: NZD, Royal Bank of Canada, Company Settlement Date January 27, 2023                    
Derivative Instruments Table [Abstract]                    
Derivative Asset, Type [Extensible Enumeration] Foreign currency forward contract     Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract Foreign currency forward contract      
Derivative Liability, Notional Amount $ 34.0                  
Derivative Asset, Notional Amount             $ 59      
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset $ (3.0)                  
Investment, Identifier [Axis]: 2U, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.16% [2] 6.50% [1]   10.16% [2] 10.16% [2] 10.16% [2] 10.16% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 14.6 [3],[4],[5] $ 55.0 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 14.3 [3],[4],[5] 55.0 [6],[7],[8]                
Investment, Identifier [Axis]: A.U.L. Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   1.2                
Less: funded commitments   0.0                
Total unfunded commitments   1.2                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   1.2                
Investment, Identifier [Axis]: ACAS Equity Holdings Corporation                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.0 0.4                
Fair Value 0.4 0.4                
Investment, Identifier [Axis]: ACAS Equity Holdings Corporation, Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.4 [5] 0.4 [8]                
Investment, Identifier [Axis]: ADF Capital, Inc., ADF Restaurant Group, LLC, and ARG Restaurant Holdings, Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 58.4                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 (57.2)                
Net unrealized gains (losses): 0.0 58.4                
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: ADF Capital, Inc., ADF Restaurant Group, LLC, and ARG Restaurant Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 8.3 [4],[9] 111.4 [7],[10]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [4],[9] 0.0 [7],[10]                
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.1 13.7                
Less: funded commitments (14.1) (11.9)                
Total unfunded commitments 0.0 1.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 1.8                
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 1                    
Schedule of Investments [Line Items]                    
Coupon 9.19% [2] 7.50% [1]   9.19% [2] 9.19% [2] 9.19% [2] 9.19% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 9.8 [3],[4] $ 9.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.3 [3],[4] $ 9.5 [6],[7]                
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon 11.25% [2] 5.75% [1]   11.25% [2] 11.25% [2] 11.25% [2] 11.25% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 4.3 [3],[4] $ 2.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.1 [3],[4] 2.3 [6],[7]                
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, Membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0 [7]                
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 130.0 [4] 115.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 104.0 [4] 103.7 [6],[7]                
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 10.2                  
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.1                  
Investment, Identifier [Axis]: AHR Funding Holdings, Inc. and AHR Parent Holdings, LP, Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 35.8                  
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   0.1                
Less: funded commitments   0.0                
Total unfunded commitments   0.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 0.1                
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.97% [2] 4.50% [1]   7.97% [2] 7.97% [2] 7.97% [2] 7.97% [2] 4.50% [1] 4.50% [1] 4.50% [1]
Total first lien senior secured loans $ 1.0 [3],[4],[11] $ 0.9 [6],[7],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.9 [3],[4],[11] 0.9 [6],[7],[12]                
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 28.9                  
Less: funded commitments (0.4)                  
Total unfunded commitments 28.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 28.5                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 5.7                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.22%     10.22% 10.22% 10.22% 10.22%      
Total first lien senior secured loans [3],[4] $ 26.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 26.8                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.61%     10.61% 10.61% 10.61% 10.61%      
Total first lien senior secured loans [3],[4] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.4                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 45.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 45.6                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 10.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 10.3                  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 10.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 10.0                  
Investment, Identifier [Axis]: AIM Acquisition, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 1.8                  
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.1 0.1                
Sales (cost) 0.0 0.0                
Interest income 1.0 1.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (3.0) (1.1)                
Fair Value 21.8 25.0                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.1 0.1                
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC, Class A membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.6 [4] $ 11.5 [7]                
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.36% [2] 6.75% [1]   10.36% [2] 10.36% [2] 10.36% [2] 10.36% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 13.3 [3],[4] $ 13.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 13.2 [3],[4] 13.5 [6],[7]                
Investment, Identifier [Axis]: API Commercial Inc., API Military Inc., and API Space Intermediate, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[9] 7.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[9] 3.6                  
Investment, Identifier [Axis]: AQ Sage Buyer, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 6.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 6.4                  
Investment, Identifier [Axis]: AQ Sage Buyer, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.70%     10.70% 10.70% 10.70% 10.70%      
Total first lien senior secured loans [3],[4],[5] $ 1.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 1.8                  
Investment, Identifier [Axis]: AQ Sunshine, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.4 1.8                
Less: funded commitments (1.4) (0.3)                
Total unfunded commitments 11.0 1.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 11.0 $ 1.5                
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 8.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 8.6                
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.42%     10.42% 10.42% 10.42% 10.42%      
Total first lien senior secured loans [3],[4] $ 8.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 8.8                  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 7.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 8.5 [3],[4] $ 13.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.3 [3],[4] $ 13.3 [6],[7]                
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 7.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 5.6 [3],[4] $ 20.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.5 [3],[4] $ 20.2 [6],[7]                
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.0                  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 5                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.42%     10.42% 10.42% 10.42% 10.42%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 7.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 1.4 [3],[4],[13] $ 0.3 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.4 [3],[4],[13] 0.3 [6],[7],[14]                
Investment, Identifier [Axis]: ARES 2007-3R, Subordinated notes                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [5] 0.1                  
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.2 6.2                
Less: funded commitments 0.0 (1.2)                
Total unfunded commitments 6.2 5.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 6.2 5.0                
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 19.2                  
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.38%     10.38% 10.38% 10.38% 10.38%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 19.6                
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 46.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 45.8                
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 1.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   1.2                
Investment, Identifier [Axis]: ATI Restoration, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 83.7 12.5                
Less: funded commitments (5.8) (11.4)                
Total unfunded commitments 77.9 1.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 77.9 $ 1.1                
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.36% [2] 6.00% [1]   9.36% [2] 9.36% [2] 9.36% [2] 9.36% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 33.0 [3],[4] $ 33.3 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 33.0 [3],[4] $ 33.3 [6]                
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.65%     9.65% 9.65% 9.65% 9.65%      
Total first lien senior secured loans [3],[4] $ 8.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 8.2                  
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.50% [2] 6.00% [1]   11.50% [2] 11.50% [2] 11.50% [2] 11.50% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 4.7 [3],[4],[13] $ 8.1 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.7 [3],[4],[13] $ 8.1 [6],[7],[14]                
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6]   $ 2.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   2.5                
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 2.0 50.5                
Redemptions (cost) 3.0 26.4                
Sales (cost) 0.0 0.0                
Interest income 6.0 4.1                
Capital structuring service fees 0.0 1.6                
Dividend income 0.0 0.0                
Other income 0.0 0.1                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 4.6 5.0                
Fair Value 70.2 63.9                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.1 7.0                
Less: funded commitments (3.2) (4.0)                
Total unfunded commitments 3.9 3.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.9 3.0                
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.9 [4] $ 10.4 [7]                
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 13.73% [2] 10.00% [1]   13.73% [2] 13.73% [2] 13.73% [2] 13.73% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 52.1 [3],[4] $ 49.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 52.1 [3],[4] $ 49.5 [6],[7]                
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   11.25%           11.25% 11.25% 11.25%
Total first lien senior secured loans [6],[7]   $ 4.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   4.0                
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 15.50%     15.50% 15.50% 15.50% 15.50%      
Total first lien senior secured loans [3],[4] $ 2.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 2.2                  
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon [2] 13.77%     13.77% 13.77% 13.77% 13.77%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.0                  
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 13.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 13.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.1 13.7                
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., A ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 6.5                  
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., Class A ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 2.8                
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 14.54% [2] 10.50% [1]   14.54% [2] 14.54% [2] 14.54% [2] 14.54% [2] 10.50% [1] 10.50% [1] 10.50% [1]
Total first lien senior secured loans $ 61.0 [3],[4],[5] $ 13.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 59.8 [3],[4],[5] $ 13.7 [6],[7]                
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   11.50%           11.50% 11.50% 11.50%
Total first lien senior secured loans [6],[7]   $ 30.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   30.5                
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.1 4.1                
Less: funded commitments (4.1) (4.1)                
Total unfunded commitments 0.0 0.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.6 $ 4.0                
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon 12.48% [2] 10.00% [1]   12.48% [2] 12.48% [2] 12.48% [2] 12.48% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 4.1 [3],[4] $ 4.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.1 [3],[4] $ 3.9 [6],[7]                
Investment, Identifier [Axis]: Acrisure, LLC and Acrisure Finance, Inc., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 700.00%     700.00% 700.00% 700.00% 700.00%      
Total first lien senior secured loans [4],[11] $ 0.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] 0.5                  
Investment, Identifier [Axis]: Advarra Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.4                  
Investment, Identifier [Axis]: Advarra Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.15%     10.15% 10.15% 10.15% 10.15%      
Total first lien senior secured loans [3],[4] $ 4.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 3.9                  
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.24% [2] 8.00% [1]   13.24% [2] 13.24% [2] 13.24% [2] 13.24% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 36.2 [3],[4] $ 36.6 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 35.1 [3],[4] $ 36.6 [6]                
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.24% [2] 8.00% [1]   13.24% [2] 13.24% [2] 13.24% [2] 13.24% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 1.1 [3],[4] $ 1.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.1 [3],[4] 1.2 [6],[7]                
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 45.6 9.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 45.6 9.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 45.6 $ 9.0                
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6]   $ 64.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   64.0                
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.64%     10.64% 10.64% 10.64% 10.64%      
Total first lien senior secured loans [3],[4] $ 120.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 115.7                  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.45%     10.45% 10.45% 10.45% 10.45%      
Total first lien senior secured loans [3],[4] $ 63.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 60.8                  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 56.8 [3],[4] 27.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 54.4 [3],[4] $ 27.5 [7]                
Investment, Identifier [Axis]: Aimbridge Acquisition Co., Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.62% [2] 7.60% [1]   11.62% [2] 11.62% [2] 11.62% [2] 11.62% [2] 7.60% [1] 7.60% [1] 7.60% [1]
Total first lien senior secured loans $ 22.5 [4] $ 22.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 21.8 [4] 21.4 [7]                
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   29.0                
Less: funded commitments   0.0                
Total unfunded commitments   29.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   29.0                
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 19.5                
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.42% [2] 4.39% [1]   11.42% [2] 11.42% [2] 11.42% [2] 11.42% [2] 4.39% [1] 4.39% [1] 4.39% [1]
Total first lien senior secured loans $ 9.5 [4] $ 29.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.0 [4] $ 28.0                
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.14%           8.14% 8.14% 8.14%
Total first lien senior secured loans 19.5 [4] $ 77.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 19.5 [4] 69.0 [7]                
Investment, Identifier [Axis]: Alcami Corporation and ACM Note Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 6.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 6.6                  
Investment, Identifier [Axis]: Alera Group, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   1.0                
Less: funded commitments   0.0                
Total unfunded commitments   1.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 1.0                
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 6.25% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 60.6 [3],[4] $ 96.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 58.8 [3],[4] $ 95.6 [6],[7]                
Investment, Identifier [Axis]: Alteon Health, LLC. First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7]   $ 2.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   2.8                
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.5 4.5                
Less: funded commitments (0.9) 0.0                
Total unfunded commitments 3.6 4.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.6 $ 4.5                
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.14%     7.14% 7.14% 7.14% 7.14%      
Total first lien senior secured loans [3],[4] $ 0.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.6                  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.25%     9.25% 9.25% 9.25% 9.25%      
Total first lien senior secured loans [4] $ 0.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 0.3                  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.23% [2] 9.50% [1]   13.23% [2] 13.23% [2] 13.23% [2] 13.23% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 56.4 [3],[4] $ 56.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 56.4 [3],[4] 56.4 [6],[7]                
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, Series A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 6.5 [4] 3.7 [7]                
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.3 [4] 0.2 [7]                
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Warrant to purchase Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 18.9                
Investment, Identifier [Axis]: American Seafoods Group LLC and American Seafoods Partners LLC, Warrant to purchase up to 7,422,078 Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 28.0                  
Investment, Identifier [Axis]: Amryt Pharmaceuticals, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.46%     10.46% 10.46% 10.46% 10.46%      
Total first lien senior secured loans [3],[4],[5] $ 12.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 12.7                  
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.58% [2] 4.60% [1]   9.58% [2] 9.58% [2] 9.58% [2] 9.58% [2] 4.60% [1] 4.60% [1] 4.60% [1]
Total first lien senior secured loans $ 14.6 [4] $ 1.0 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.0 [4] 1.0 [7]                
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.88%     8.88% 8.88% 8.88% 8.88%      
Total first lien senior secured loans [4] $ 2.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 2.2                  
Investment, Identifier [Axis]: Anaplan, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.4                  
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.82%     10.82% 10.82% 10.82% 10.82%      
Total first lien senior secured loans [3],[4] $ 1.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.7                  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.4 4.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.4 4.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.4 $ 4.3                
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans   $ 4.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 4.7                
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.52%     7.52% 7.52% 7.52% 7.52%      
Total first lien senior secured loans [4] $ 4.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 4.4                  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.11% [2] 7.00% [1]   9.11% [2] 9.11% [2] 9.11% [2] 9.11% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 1.0 [3],[4] $ 16.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.0 [3],[4] 16.0 [6],[7]                
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, Limited partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 8.3 [4],[5] 7.6 [7],[8]                
Investment, Identifier [Axis]: Apex Clean Energy TopCo, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 18.1 80.5                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 53.4 (1.4)                
Fair Value 150.6 79.1                
Investment, Identifier [Axis]: Apex Clean Energy TopCo, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 150.6 79.1                
Investment, Identifier [Axis]: Applied Technical Services, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.8                  
Less: funded commitments (1.1)                  
Total unfunded commitments 2.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.7                  
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.8                  
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.25%     12.25% 12.25% 12.25% 12.25%      
Total first lien senior secured loans [3] $ 1.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 1.1                  
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.1 $ 0.1                
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.54% [2] 8.25% [1]   11.54% [2] 11.54% [2] 11.54% [2] 11.54% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 5.7 [3],[4] $ 13.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.7 [3],[4] 13.4 [6],[7]                
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 35.6 [4] 34.6 [7]                
Investment, Identifier [Axis]: Apptio, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.2 4.2                
Less: funded commitments (2.5) (1.7)                
Total unfunded commitments 1.7 2.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.7 $ 2.5                
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.94% [2] 8.25% [1]   9.94% [2] 9.94% [2] 9.94% [2] 9.94% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 15.1 [3],[4] $ 62.2 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.1 [3],[4] $ 62.2 [6]                
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.93% [2] 8.25% [1]   9.93% [2] 9.93% [2] 9.93% [2] 9.93% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 2.5 [3],[4] $ 1.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.5 [3],[4] $ 1.7 [6],[7]                
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.81% [2] 8.21% [1]   8.81% [2] 8.81% [2] 8.81% [2] 8.81% [2] 8.21% [1] 8.21% [1] 8.21% [1]
Total first lien senior secured loans $ 90.0 [3],[4],[5] $ 69.5 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 89.1 [3],[4],[5] $ 69.5 [6],[7],[8]                
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.19% [2] 7.50% [1]   8.19% [2] 8.19% [2] 8.19% [2] 8.19% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 66.8 [3],[4],[5] $ 14.5 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 66.8 [3],[4],[5] $ 14.5 [6],[7],[8]                
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.19% [2] 7.75% [1]   8.19% [2] 8.19% [2] 8.19% [2] 8.19% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 75.0 [3],[4],[5] $ 7.5 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 75.0 [3],[4],[5] $ 7.5 [6],[7],[8]                
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.00% [2] 6.75% [1]   8.00% [2] 8.00% [2] 8.00% [2] 8.00% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 7.0 [3],[4],[5] $ 111.2 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 7.0 [3],[4],[5] 111.2 [6],[7],[8]                
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 1.4 [4],[5],[13] 1.3 [7],[8],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.4 [4],[5],[13] 1.4 [7],[8],[12]                
Investment, Identifier [Axis]: Ares IIIR/IVR CLO Ltd., Subordinated notes                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [8]   20.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8]   0.0                
Investment, Identifier [Axis]: Argenbright Holdings V, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   1.3                
Less: funded commitments   0.0                
Total unfunded commitments   1.3                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 1.3                
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.5                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.5                  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.49%     11.49% 11.49% 11.49% 11.49%      
Total first lien senior secured loans [3],[4],[5] $ 20.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 20.7                  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.53%     11.53% 11.53% 11.53% 11.53%      
Total first lien senior secured loans [3],[4],[5] $ 5.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 5.8                  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 21.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   20.9                
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   20.0                
Less: funded commitments   (5.0)                
Total unfunded commitments   15.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   15.0                
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.4 [4] $ 6.7 [7]                
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.68% [2] 5.25% [1]   8.68% [2] 8.68% [2] 8.68% [2] 8.68% [2] 5.25% [1] 5.25% [1] 5.25% [1]
Total first lien senior secured loans $ 0.1 [3],[4],[13] $ 27.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4],[13] $ 27.2 [6],[7]                
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.25%           5.25% 5.25% 5.25%
Total first lien senior secured loans [6],[7],[14]   $ 3.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   3.6                
Investment, Identifier [Axis]: AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 9.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 9.0                  
Investment, Identifier [Axis]: AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 9.5                  
Investment, Identifier [Axis]: AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 198.5                  
Investment, Identifier [Axis]: AthenaHealth Group Inc., VVC Holding Corp, Virence Intermediate Holding Corp, and Virence Holdings LLC, Class A interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   49.3                
Investment, Identifier [Axis]: Athenahealth, Inc., VVC Holding Corp., Virence Intermediate Holding Corp., and Virence Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   33.1                
Less: funded commitments   0.0                
Total unfunded commitments   33.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   33.1                
Investment, Identifier [Axis]: Athyrium Buffalo LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.5                  
Less: funded commitments (7.6)                  
Total unfunded commitments 7.9                  
Less: commitments substantially at discretion of the Company 7.9                  
Total net adjusted unfunded revolving and delayed draw commitments 0.0                  
Investment, Identifier [Axis]: Athyrium Buffalo LP, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 7.5                  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.8 0.4                
Less: funded commitments (0.2) 0.0                
Total unfunded commitments 0.6 0.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.6 $ 0.4                
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.50% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 0.2 [6],[7]                
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.50% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 2.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] 2.1 [6],[7]                
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.10%     10.10% 10.10% 10.10% 10.10%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.2                  
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 $ 0.6 [7]                
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.93% [2] 6.00% [1]   10.93% [2] 10.93% [2] 10.93% [2] 10.93% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 5.3 [3],[4] $ 10.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.3 [3],[4] 10.0 [6],[7]                
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.73%     9.73% 9.73% 9.73% 9.73%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.2 [4] $ 4.5                
Investment, Identifier [Axis]: Avalara, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.7                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.7                  
Investment, Identifier [Axis]: Avalara, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.83%     11.83% 11.83% 11.83% 11.83%      
Total first lien senior secured loans [3],[4] $ 72.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 70.4                  
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2                  
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 10.38% [2] 6.75% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 9.4 [3],[4] $ 6.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.3 [3],[4] $ 6.5 [6],[7]                
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.25%           10.25% 10.25% 10.25%
Total first lien senior secured loans 39.4 [4] $ 35.6 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 36.2 [4] 35.3 [7]                
Investment, Identifier [Axis]: Aventine Intermediate LLC and Aventine Holdings II LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   2.6                
Less: funded commitments   0.0                
Total unfunded commitments   2.6                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   2.6                
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.23%     9.23% 9.23% 9.23% 9.23%      
Total first lien senior secured loans [3],[4],[11] $ 9.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 6.8                  
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.66%     12.66% 12.66% 12.66% 12.66%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.2                  
Investment, Identifier [Axis]: Avetta, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.2 4.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.2 4.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.2 $ 4.2                
Investment, Identifier [Axis]: Avetta, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.16% [2] 7.25% [1]   10.16% [2] 10.16% [2] 10.16% [2] 10.16% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 11.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 11.8 [6],[7]                
Investment, Identifier [Axis]: AxiomSL Group, Inc. and Calypso Group, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.9 3.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.9 3.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.9 $ 3.9                
Investment, Identifier [Axis]: AxiomSL Group, Inc. and Calypso Group, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 7.00% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 21.2 [3],[4] $ 21.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 21.2 [3],[4] 21.2 [6],[7]                
Investment, Identifier [Axis]: Axiomatic, LLC, Class A-1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.3                  
Investment, Identifier [Axis]: BAART Programs, Inc., MedMark Services, Inc., and Canadian Addiction Treatment Centres LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.0                  
Investment, Identifier [Axis]: BAART Programs, Inc., MedMark Services, Inc., and Canadian Addiction Treatment Centres LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.73%     9.73% 9.73% 9.73% 9.73%      
Total first lien senior secured loans [3],[4] $ 6.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 5.9                  
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.9 [4] $ 4.1 [7]                
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.02% [2] 7.00% [1]   11.02% [2] 11.02% [2] 11.02% [2] 11.02% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 0.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3],[4] 0.2 [6],[7]                
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 5.0 [4] 4.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.9 [4] 4.5 [7]                
Investment, Identifier [Axis]: BH-Sharp Holdings LP, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 2.3                  
Investment, Identifier [Axis]: BW Landco LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   0.0                
Sales (cost)   20.9                
Interest income   0.0                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   20.8                
Net unrealized gains (losses):   (16.0)                
Fair Value   $ 0.0                
Investment, Identifier [Axis]: Badger Sportswear Acquisition, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.57% [2] 10.25% [1]   13.57% [2] 13.57% [2] 13.57% [2] 13.57% [2] 10.25% [1] 10.25% [1] 10.25% [1]
Total first lien senior secured loans $ 56.8 [3],[4] $ 56.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 56.8 [3],[4] 56.8 [6],[7]                
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 10.5 [4] $ 5.5 [7]                
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.73% [2] 7.50% [1]   11.73% [2] 11.73% [2] 11.73% [2] 11.73% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 29.5 [3],[4] $ 29.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 29.5 [3],[4] 29.4 [6],[7]                
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 25.4 [4] 22.7 [7]                
Investment, Identifier [Axis]: Bambino Group Holdings, LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.9 [4] 1.1 [7]                
Investment, Identifier [Axis]: Bamboo Purchaser, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   4.1                
Less: funded commitments   0.0                
Total unfunded commitments   4.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 4.1                
Investment, Identifier [Axis]: Bamboo Purchaser, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.73% [2] 6.75% [1]   10.73% [2] 10.73% [2] 10.73% [2] 10.73% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 17.9 [3],[4] $ 39.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 17.4 [3],[4] 38.6 [6],[7]                
Investment, Identifier [Axis]: Banyan Software Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   33.8                
Less: funded commitments   0.0                
Total unfunded commitments   33.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 33.8                
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.0                  
Less: funded commitments (0.9)                  
Total unfunded commitments 7.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 7.1                  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.75%           7.75% 7.75% 7.75%
Total first lien senior secured loans [6],[7]   $ 6.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 6.7                
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.23%     11.23% 11.23% 11.23% 11.23%      
Total first lien senior secured loans [3],[4] $ 20.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 20.3                  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 7.75% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 1.0 [3],[4] $ 7.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.0 [3],[4] $ 7.7 [6],[7]                
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 5.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   5.0                
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.88%     10.88% 10.88% 10.88% 10.88%      
Total first lien senior secured loans [3],[4] $ 0.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.9                  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 5.4                  
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.5 9.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 5.5 9.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 5.5 $ 9.0                
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.39% [2] 6.00% [1]   9.39% [2] 9.39% [2] 9.39% [2] 9.39% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 17.9 [3],[4],[5] $ 14.5 [6],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 17.7 [3],[4],[5] 14.4 [6],[8]                
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   32.8                
Less: funded commitments   0.0                
Total unfunded commitments   32.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   32.8                
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 10.8                
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.25%           9.25% 9.25% 9.25%
Total first lien senior secured loans [6],[7]   $ 69.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 69.5                
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.25%           9.25% 9.25% 9.25%
Total first lien senior secured loans [6],[7]   $ 12.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   12.7                
Investment, Identifier [Axis]: Belfor Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 25.0 25.0                
Less: funded commitments (17.0) (4.0)                
Total unfunded commitments 8.0 21.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 8.0 $ 21.0                
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.25% [2] 5.50% [1]   7.25% [2] 7.25% [2] 7.25% [2] 7.25% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 11.6 [4],[13] $ 0.0 [7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.1 [4],[13] 0.0 [7],[14]                
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.25%     10.25% 10.25% 10.25% 10.25%      
Total first lien senior secured loans [4],[13] $ 1.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[13] 1.4                  
Investment, Identifier [Axis]: Benecon Midco II LLC and Locutus Holdco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.5 4.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.5 4.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 4.5 4.5                
Investment, Identifier [Axis]: Benecon Midco II LLC and Locutus Holdco LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.1 15.5                
Investment, Identifier [Axis]: Benefytt Technologies, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.9 5.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.9 5.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.9 $ 5.9                
Investment, Identifier [Axis]: Benefytt Technologies, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 13.16% [2] 6.75% [1]   13.16% [2] 13.16% [2] 13.16% [2] 13.16% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 29.1 [3],[4] $ 23.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 23.9 [3],[4] 23.2 [6],[7]                
Investment, Identifier [Axis]: Berner Food & Beverage, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.7 1.7                
Less: funded commitments (0.5) (0.7)                
Total unfunded commitments 1.2 1.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.2 $ 1.0                
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.00% [2] 8.75% [1]   12.00% [2] 12.00% [2] 12.00% [2] 12.00% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 0.4 [3],[4] $ 0.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.4 [3],[4] $ 0.4 [6],[7]                
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.91% [2] 7.50% [1]   9.91% [2] 9.91% [2] 9.91% [2] 9.91% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] $ 0.3 [6],[7]                
Investment, Identifier [Axis]: Birch Permian, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.50%           9.50% 9.50% 9.50%
Total first lien senior secured loans [6],[7]   $ 75.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   75.7                
Investment, Identifier [Axis]: Blue Angel Buyer 1, LLC and Blue Angel Holdco, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   0.0                
Sales (cost)   9.7                
Interest income   0.0                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   46.3                
Net unrealized gains (losses):   (18.4)                
Fair Value   0.0                
Investment, Identifier [Axis]: Blue Wolf Capital Fund II, L.P.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.5                
Net unrealized gains (losses): (0.2) 0.0                
Fair Value 0.1 0.2                
Investment, Identifier [Axis]: Blue Wolf Capital Fund II, L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [5],[11] 0.2 [8],[12]                
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.0                  
Less: funded commitments (2.8)                  
Total unfunded commitments 0.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2                  
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.70%     10.70% 10.70% 10.70% 10.70%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.0                  
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.72%     10.72% 10.72% 10.72% 10.72%      
Total first lien senior secured loans [3],[4] $ 2.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 2.7                  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.9 1.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.9 1.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.9 $ 1.5                
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7]   $ 15.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   15.5                
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 8.23%     8.23% 8.23% 8.23% 8.23%      
Total first lien senior secured loans [3],[4] $ 15.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 15.9                  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon [2] 8.23%     8.23% 8.23% 8.23% 8.23%      
Total first lien senior secured loans [3],[4] $ 1.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.4                  
Investment, Identifier [Axis]: Bottomline Technologies, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.3                  
Investment, Identifier [Axis]: Bottomline Technologies, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.82%     9.82% 9.82% 9.82% 9.82%      
Total first lien senior secured loans [3],[4] $ 18.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 17.6                  
Investment, Identifier [Axis]: Bowhunter Holdings, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 3.3 4.6                
Redemptions (cost) 5.7 7.8                
Sales (cost) 9.8 0.0                
Interest income 3.4 3.1                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.2                
Other income 0.2 0.1                
Net realized gains (losses): (0.2) 0.0                
Net unrealized gains (losses): 3.5 (4.4)                
Fair Value 39.1 47.8                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.4 4.4                
Less: funded commitments 0.0 (1.7)                
Total unfunded commitments 4.4 2.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 4.4 2.7                
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 10.8 [4] $ 8.8 [7]                
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6]   $ 39.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 37.4                
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.58% [2] 7.25% [1]   11.58% [2] 11.58% [2] 11.58% [2] 11.58% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 28.9 [3],[4] $ 1.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 28.3 [3],[4] 1.6 [6],[7]                
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.67%     9.67% 9.67% 9.67% 9.67%      
Total first lien senior secured loans [3],[4],[11] $ 4.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] 4.3                  
Investment, Identifier [Axis]: Businessolver.com, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.6 18.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.6 18.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.6 $ 18.9                
Investment, Identifier [Axis]: Businessolver.com, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.67% [2] 6.50% [1]   9.67% [2] 9.67% [2] 9.67% [2] 9.67% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 14.7 [3],[4] $ 70.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 14.5 [3],[4] 69.5 [6],[7]                
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.0 12.0                
Less: funded commitments (3.7) (3.0)                
Total unfunded commitments 8.3 9.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 8.3 $ 9.0                
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.91% [2] 5.63% [1]   9.91% [2] 9.91% [2] 9.91% [2] 9.91% [2] 5.63% [1] 5.63% [1] 5.63% [1]
Total first lien senior secured loans $ 33.6 [4],[11] $ 34.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.2 [4],[11] $ 33.3                
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.9 0.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.9 0.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.9 0.9                
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.4 [4] $ 6.1 [7]                
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.75% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 3.8 [3],[4] $ 3.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.6 [3],[4] 3.8 [6],[7]                
Investment, Identifier [Axis]: CHG PPC Parent LLC & PPC CHG Blocker LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.9 [4] $ 3.0 [7]                
Investment, Identifier [Axis]: CHG PPC Parent LLC & PPC CHG Blocker LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.13% [2] 7.25% [1]   11.13% [2] 11.13% [2] 11.13% [2] 11.13% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 94.6 [3],[4] $ 94.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 89.9 [3],[4] 93.7 [6],[7]                
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.2                  
Less: funded commitments (0.4)                  
Total unfunded commitments 9.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 9.8                  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 4.6                  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.52%     9.52% 9.52% 9.52% 9.52%      
Total first lien senior secured loans [3],[4] $ 21.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 21.4                  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.40%     9.40% 9.40% 9.40% 9.40%      
Total first lien senior secured loans [3],[4] $ 3.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 3.7                  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.47%     9.47% 9.47% 9.47% 9.47%      
Total first lien senior secured loans $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.4                  
Investment, Identifier [Axis]: CMW Parent LLC (fka Black Arrow, Inc.), Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0 [7]                
Investment, Identifier [Axis]: CREST Exeter Street Solar 2004-1, Preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [5] 0.0 [8]                
Investment, Identifier [Axis]: CST Buyer Company (d/b/a Intoxalock)                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.1                
Less: funded commitments   0.0                
Total unfunded commitments   6.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   6.1                
Investment, Identifier [Axis]: CST Holding Company                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.9                  
Less: funded commitments (0.2)                  
Total unfunded commitments 1.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.7                  
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.97%     10.97% 10.97% 10.97% 10.97%      
Total first lien senior secured loans [3],[4] $ 11.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 11.4                  
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.97%     10.97% 10.97% 10.97% 10.97%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.2                  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 25.8 19.7                
Less: funded commitments 0.0 (0.4)                
Total unfunded commitments 25.8 19.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 25.8 19.3                
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 22.7 [4] $ 15.9 [7]                
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.13% [2] 6.25% [1]   11.13% [2] 11.13% [2] 11.13% [2] 11.13% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 49.5 [3],[4] $ 39.4 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 49.0 [3],[4] $ 39.4 [6]                
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.13% [2] 6.75% [1]   11.13% [2] 11.13% [2] 11.13% [2] 11.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 38.9 [3],[4] $ 49.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 38.5 [3],[4] $ 49.2 [6],[7]                
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 1.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.6                  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.13%     11.13% 11.13% 11.13% 11.13%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7],[14]   $ 0.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   0.4                
Investment, Identifier [Axis]: Cadence Aerospace, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.3 15.1                
Less: funded commitments (14.8) (11.7)                
Total unfunded commitments 0.5 3.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.5 $ 3.4                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 12.92%     12.92% 12.92% 12.92% 12.92%      
Total first lien senior secured loans [3],[4] $ 31.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 30.5                  
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.50%           9.50% 9.50% 9.50%
Total first lien senior secured loans [6]   $ 31.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 30.5                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon 12.92% [2] 9.50% [1]   12.92% [2] 12.92% [2] 12.92% [2] 12.92% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 11.9 [3],[4] $ 9.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.6 [3],[4] $ 9.5 [6],[7]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon 12.92% [2] 9.50% [1]   12.92% [2] 12.92% [2] 12.92% [2] 12.92% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 9.7 [3],[4] $ 12.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.5 [3],[4] 11.6 [6],[7]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon [2] 2.00%     2.00% 2.00% 2.00% 2.00%      
Total first lien senior secured loans $ 7.8 [3],[4] 7.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.6 [3],[4] $ 7.6 [6],[7]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 5                    
Schedule of Investments [Line Items]                    
Coupon 12.92% [2] 9.50% [1]   12.92% [2] 12.92% [2] 12.92% [2] 12.92% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 5.3 [3],[4] $ 4.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.2 [3],[4] $ 3.9 [6]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon 12.92% [2] 9.50% [1]   12.92% [2] 12.92% [2] 12.92% [2] 12.92% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 13.7 [3],[4],[13] $ 7.9 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 13.4 [3],[4],[13] $ 7.6 [6],[7],[14]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon 12.92% [2] 8.75% [1]   12.92% [2] 12.92% [2] 12.92% [2] 12.92% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 1.0 [3],[4] $ 3.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.0 [3],[4] $ 2.9 [6]                
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.50%           9.50% 9.50% 9.50%
Total first lien senior secured loans [6],[7]   $ 0.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.7                
Investment, Identifier [Axis]: Caerus Midco 3 S.à r.l.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 4.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.1                  
Investment, Identifier [Axis]: Caerus Midco 3 S.à r.l., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.83%     9.83% 9.83% 9.83% 9.83%      
Total first lien senior secured loans [3],[4],[5] $ 5.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 5.3                  
Investment, Identifier [Axis]: CallMiner, Inc., Warrant to purchase shares of Series 1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: CallMiner, Inc., Warrant to purchase up to 2,350,636 shares of Series 1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0                  
Investment, Identifier [Axis]: Calyx Energy III, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.37%     12.37% 12.37% 12.37% 12.37%      
Total first lien senior secured loans [3],[4] $ 57.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 57.0                  
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.3 27.3                
Less: funded commitments (8.8) (11.2)                
Total unfunded commitments 6.5 16.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 6.5 16.1                
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 20.1 [4] $ 14.4 [7]                
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.13% [2] 5.75% [1]   9.13% [2] 9.13% [2] 9.13% [2] 9.13% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 0.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3],[4] $ 0.3 [6],[7]                
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans 0.0 [15] $ 2.3 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [15] $ 2.3 [6],[7],[14]                
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.13% [2] 9.75% [1]   13.13% [2] 13.13% [2] 13.13% [2] 13.13% [2] 9.75% [1] 9.75% [1] 9.75% [1]
Total first lien senior secured loans $ 68.3 [3],[4] $ 68.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 68.3 [3],[4] 68.3 [6],[7]                
Investment, Identifier [Axis]: Captive Resources Midco, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.2                  
Investment, Identifier [Axis]: Captive Resources Midco, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.20%     7.20% 7.20% 7.20% 7.20%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.0 5.0                
Less: funded commitments (3.4) (0.6)                
Total unfunded commitments 1.6 4.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.6 $ 4.4                
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.00% [2] 6.75% [1]   11.00% [2] 11.00% [2] 11.00% [2] 11.00% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 3.4 [3],[4] $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.0 [3],[4] $ 0.6 [6],[7]                
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.46% [2] 8.50% [1]   12.46% [2] 12.46% [2] 12.46% [2] 12.46% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 64.3 [3],[4] $ 59.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 57.8 [3],[4] 59.9 [6],[7]                
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.3 [4] 28.0 [7]                
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A-2 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.4 [4] 10.1 [7]                
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Series A-3 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 11.1 [4] 13.4 [7]                
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 20.4 8.5                
Less: funded commitments (9.0) (8.3)                
Total unfunded commitments 11.4 0.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions (11.4) 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 $ 0.2                
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[9] 9.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[9] 4.0                  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[9] 2.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[9] 0.9                  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.65%           5.65% 5.65% 5.65%
Total first lien senior secured loans 6.8 [4],[9] $ 6.8 [7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.9 [4],[9] 6.2 [7],[14]                
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[9] 0.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[9] 0.2                  
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.6 7.9                
Less: funded commitments (5.0) (2.3)                
Total unfunded commitments 3.6 5.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.6 $ 5.6                
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 13.30% [2] 10.00% [1]   13.30% [2] 13.30% [2] 13.30% [2] 13.30% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 75.4 [3],[4] $ 67.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 70.9 [3],[4] $ 67.3 [6],[7]                
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.70% [2] 6.50% [1]   9.70% [2] 9.70% [2] 9.70% [2] 9.70% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 5.0 [3],[4] $ 2.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.7 [3],[4] 2.3 [6],[7]                
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, Membership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.9 [4] 11.5 [7]                
Investment, Identifier [Axis]: Chariot Buyer LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.3 12.3                
Less: funded commitments (3.5) (2.8)                
Total unfunded commitments 8.8 9.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 8.8 $ 9.5                
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.38% [2] 5.75% [1]   7.38% [2] 7.38% [2] 7.38% [2] 7.38% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 3.5 [4] $ 0.2 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.2 [4] $ 0.2 [7]                
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   3.60%           3.60% 3.60% 3.60%
Total first lien senior secured loans [7]   $ 2.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 2.5                
Investment, Identifier [Axis]: Chariot Buyer LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.13% [2] 7.50% [1]   11.13% [2] 11.13% [2] 11.13% [2] 11.13% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 134.4 [3],[4] $ 134.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 126.3 [3],[4] $ 133.0 [6],[7]                
Investment, Identifier [Axis]: Cheyenne Petroleum Company Limited Partnership, CPC 2001 LLC and Mill Shoals LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.5                  
Less: funded commitments 0.0                  
Total unfunded commitments 9.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 9.5                  
Investment, Identifier [Axis]: Cheyenne Petroleum Company Limited Partnership, CPC 2001 LLC and Mill Shoals LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.69% [2] 10.00% [1]   13.69% [2] 13.69% [2] 13.69% [2] 13.69% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 49.3 [3],[4] $ 63.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 47.8 [3],[4] $ 63.1 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 15.48% [2] 11.75% [1]   15.48% [2] 15.48% [2] 15.48% [2] 15.48% [2] 11.75% [1] 11.75% [1] 11.75% [1]
Total first lien senior secured loans $ 68.2 [3],[4] $ 68.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 66.9 [3],[4] $ 61.4 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 15.48% [2] 11.75% [1]   15.48% [2] 15.48% [2] 15.48% [2] 15.48% [2] 11.75% [1] 11.75% [1] 11.75% [1]
Total first lien senior secured loans $ 30.0 [3],[4] $ 15.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 29.4 [3],[4] 13.6 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 15.48%     15.48% 15.48% 15.48% 15.48%      
Total first lien senior secured loans $ 20.0 [3],[4] 15.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 19.6 [3],[4] $ 13.9 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 15.48% [2] 11.75% [1]   15.48% [2] 15.48% [2] 15.48% [2] 15.48% [2] 11.75% [1] 11.75% [1] 11.75% [1]
Total first lien senior secured loans $ 15.5 [3],[4] $ 20.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.2 [3],[4] $ 18.0 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 5                    
Schedule of Investments [Line Items]                    
Coupon | Rate 15.23% [2] 11.75% [1]   15.23% [2] 15.23% [2] 15.23% [2] 15.23% [2] 11.75% [1] 11.75% [1] 11.75% [1]
Total first lien senior secured loans $ 12.2 [3],[4] $ 3.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.9 [3],[4] $ 2.7 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 6                    
Schedule of Investments [Line Items]                    
Coupon | Rate 15.48% [2] 11.75% [1]   15.48% [2] 15.48% [2] 15.48% [2] 15.48% [2] 11.75% [1] 11.75% [1] 11.75% [1]
Total first lien senior secured loans $ 4.9 [3],[4] $ 4.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.8 [3],[4] 4.4 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 7                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 15.48%     15.48% 15.48% 15.48% 15.48%      
Total first lien senior secured loans $ 3.0 [3],[4] 30.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.0 [3],[4] 27.0 [6],[7]                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 8                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 15.48%     15.48% 15.48% 15.48% 15.48%      
Total first lien senior secured loans [3],[4] $ 3.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 3.0                  
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., Warrant                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   3.4                
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., Warrants to purchase units of shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 8.8                  
Investment, Identifier [Axis]: CoLTs 2005-1 Ltd.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.0 0.0                
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: CoLTs 2005-1 Ltd., Preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [5] 0.0 [8]                
Investment, Identifier [Axis]: CoLTs 2005-2 Ltd.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   0.0                
Sales (cost)   0.0                
Interest income   0.0                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   0.2                
Net unrealized gains (losses):   0.0                
Fair Value   0.0                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.8                  
Less: funded commitments (2.5)                  
Total unfunded commitments 5.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 5.3                  
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   23.7                
Less: funded commitments   (0.6)                
Total unfunded commitments   23.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   23.1                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [4] $ 2.8 [7]                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.63% [2] 6.00% [1]   9.63% [2] 9.63% [2] 9.63% [2] 9.63% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 30.2 [3] $ 29.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 29.0 [3] $ 28.8 [6],[7]                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.63% [2] 6.00% [1]   9.63% [2] 9.63% [2] 9.63% [2] 9.63% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 2.5 [3],[4] $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.4 [3],[4] 0.6 [6],[7]                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.0 [4] $ 0.3 [7]                
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., Series A preferred shares                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.75%           10.75% 10.75% 10.75%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 69.7 [4] $ 60.2 [6],[7]                
Investment, Identifier [Axis]: Color Intermediate, LLC First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.08%     10.08% 10.08% 10.08% 10.08%      
Total first lien senior secured loans [3],[4] $ 20.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 19.5                  
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.6 3.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.6 3.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.6 $ 3.3                
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.33% [2] 7.25% [1]   10.33% [2] 10.33% [2] 10.33% [2] 10.33% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 33.3 [3],[4] $ 92.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 33.3 [3],[4] $ 92.8 [6],[7]                
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.00% [2] 13.00% [1]   13.00% [2] 13.00% [2] 13.00% [2] 13.00% [2] 13.00% [1] 13.00% [1] 13.00% [1]
Total first lien senior secured loans $ 19.9 [4] $ 19.9 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 19.5 [4] 19.9 [7]                
Investment, Identifier [Axis]: Community Brands ParentCo, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 7.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 7.2                  
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 6.4                  
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.17%     10.17% 10.17% 10.17% 10.17%      
Total first lien senior secured loans [3],[4] $ 10.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 10.4                  
Investment, Identifier [Axis]: Compex Legal Services, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.6                  
Less: funded commitments (1.8)                  
Total unfunded commitments 1.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.8                  
Investment, Identifier [Axis]: Compex Legal Services, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.51%     9.51% 9.51% 9.51% 9.51%      
Total first lien senior secured loans [3],[4] $ 1.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.8                  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.9 1.9                
Less: funded commitments (0.8) (0.3)                
Total unfunded commitments 1.1 1.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.1 $ 1.6                
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.59%     10.59% 10.59% 10.59% 10.59%      
Total first lien senior secured loans [3],[4] $ 0.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.3                  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 2.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 2.6                
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7]   $ 0.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.1                
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 0.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.6                
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.58% [2] 7.00% [1]   10.58% [2] 10.58% [2] 10.58% [2] 10.58% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 0.8 [3],[4] $ 0.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.7 [3],[4] 0.3 [6],[7]                
Investment, Identifier [Axis]: Computer Services, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.15%     11.15% 11.15% 11.15% 11.15%      
Total first lien senior secured loans [3],[4] $ 34.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 33.0                  
Investment, Identifier [Axis]: Concert Golf Partners Holdco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.1 0.6                
Less: funded commitments 0.0 (0.1)                
Total unfunded commitments 3.1 0.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.1 $ 0.5                
Investment, Identifier [Axis]: Concert Golf Partners Holdco LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.50%           5.50% 5.50% 5.50%
Total first lien senior secured loans [6],[7]   $ 0.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.1                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   20.0                
Less: funded commitments   0.0                
Total unfunded commitments   20.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   20.0                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 6.0                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [7],[8]   $ 27.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 27.5                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7],[8]   $ 32.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 32.6                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7],[8]   $ 3.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 3.8                
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7],[8]   $ 11.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 11.2                
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.2                  
Less: funded commitments (0.8)                  
Total unfunded commitments 13.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 13.4                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 6.5                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4],[5] $ 11.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 11.4                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [4],[5] $ 74.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 72.6                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.39%     8.39% 8.39% 8.39% 8.39%      
Total first lien senior secured loans [3],[4],[5] $ 26.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 26.1                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.32%     8.32% 8.32% 8.32% 8.32%      
Total first lien senior secured loans [3],[4],[5] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 0.8                  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., Series A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 0.0                  
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.75% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 36.2 [3],[4] $ 36.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 33.3 [3],[4] $ 36.5 [6],[7]                
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.75% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 5.4 [3],[4] $ 33.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.9 [3],[4] $ 33.2 [6],[7]                
Investment, Identifier [Axis]: Continental Cafe, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7]   $ 15.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   15.5                
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.0 8.0                
Less: funded commitments (0.7) 0.0                
Total unfunded commitments 7.3 8.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 7.3 $ 8.0                
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.38%     11.38% 11.38% 11.38% 11.38%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.50%     13.50% 13.50% 13.50% 13.50%      
Total first lien senior secured loans [3],[4] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.7                  
Investment, Identifier [Axis]: Convera International Holdings Limited and Convera International Financial S.A R.L.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.3                  
Investment, Identifier [Axis]: Convera International Holdings Limited and Convera International Financial S.A R.L., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.33%     10.33% 10.33% 10.33% 10.33%      
Total first lien senior secured loans [3],[4],[5] $ 62.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 62.8                  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.50%           5.50% 5.50% 5.50%
Total first lien senior secured loans [6]   $ 2.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   2.7                
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3],[4],[5] $ 2.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 2.6                  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.83%     9.83% 9.83% 9.83% 9.83%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.1                  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.93%     9.93% 9.93% 9.93% 9.93%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 0.1                  
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 38.9 38.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 38.9 38.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 38.9 38.9                
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP, Limited partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 48.8 [4] $ 77.9 [7]                
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.94% [2] 7.00% [1]   10.94% [2] 10.94% [2] 10.94% [2] 10.94% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 155.7 [3],[4] $ 155.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 129.2 [3],[4] 155.7 [6],[7]                
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., Common equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 0.0                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.31%     10.31% 10.31% 10.31% 10.31%      
Total first lien senior secured loans [3],[4],[5] $ 6.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 6.2                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.06%     9.06% 9.06% 9.06% 9.06%      
Total first lien senior secured loans [3],[4],[5] $ 4.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 4.3                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.06%     11.06% 11.06% 11.06% 11.06%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.1                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.06%     9.06% 9.06% 9.06% 9.06%      
Total first lien senior secured loans [3],[4],[5] $ 6.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 6.2                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., Preferred equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 0.7                  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc., and Cority Parent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 0.1                  
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   0.1                
Less: funded commitments   0.0                
Total unfunded commitments   0.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   0.1                
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., Common equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 0.0                
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[8]   $ 6.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[8]   $ 6.3                
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[8]   $ 4.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[8]   $ 4.4                
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7],[8]   $ 1.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   1.1                
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., Preferred equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   0.6                
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 38.7 38.7                
Less: funded commitments (22.7) (0.1)                
Total unfunded commitments 16.0 38.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 16.0 38.6                
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Class A-1 common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.2 [4] $ 13.3 [7]                
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.51% [2] 0.00% [1]   7.51% [2] 7.51% [2] 7.51% [2] 7.51% [2] 0.00% [1] 0.00% [1] 0.00% [1]
Total first lien senior secured loans [4],[13] $ 21.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 19.7 [4],[13] $ 0.0 [16]                
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.88% [2] 7.00% [1]   10.88% [2] 10.88% [2] 10.88% [2] 10.88% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 137.5 [3],[4] $ 137.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 123.7 [3],[4] 135.4 [6]                
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 109.4 [4] 119.0 [7]                
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 22.2                  
Less: funded commitments (1.5)                  
Total unfunded commitments 20.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 20.7                  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.5                  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.16%     9.16% 9.16% 9.16% 9.16%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.66%     9.66% 9.66% 9.66% 9.66%      
Total first lien senior secured loans [3],[4] $ 1.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.5                  
Investment, Identifier [Axis]: Coyote Buyer, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 5.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 5.8                  
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   15.0                
Less: funded commitments   0.0                
Total unfunded commitments   15.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   15.0                
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 1.4                
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 12.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   11.4                
Investment, Identifier [Axis]: CrossCountry Mortgage, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 56.3 56.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 56.3 56.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 56.3 $ 56.3                
Investment, Identifier [Axis]: CrossCountry Mortgage, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.73% [2] 7.50% [1]   11.73% [2] 11.73% [2] 11.73% [2] 11.73% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 93.8 [3],[4] $ 93.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 92.8 [3],[4] 92.8 [6],[7]                
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 3.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 3.2                  
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, Class A shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.9                  
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 0.3                  
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.11%     10.11% 10.11% 10.11% 10.11%      
Total first lien senior secured loans [3],[4] $ 24.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 24.5                  
Investment, Identifier [Axis]: Crown Health Care Laundry Services, LLC and Crown Laundry Holdings, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   27.2                
Sales (cost)   4.5                
Interest income   (0.5)                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.9                
Net realized gains (losses):   10.7                
Net unrealized gains (losses):   (8.0)                
Fair Value   0.0                
Investment, Identifier [Axis]: DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   138.1                
Investment, Identifier [Axis]: DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   13.4                
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 96.7 103.5                
Less: funded commitments (79.3) (73.2)                
Total unfunded commitments 17.4 30.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 17.4 $ 30.3                
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.62% [2] 8.50% [1]   11.62% [2] 11.62% [2] 11.62% [2] 11.62% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 158.6 [3],[4],[5],[17] $ 146.4 [6],[7],[8],[18]                
Participating interest sold 79.0 75.0                
Secured borrowings 79.0 73.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 158.6 [3],[4],[5],[17] $ 146.4 [6],[7],[8],[18]                
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC, First lien senior secured revolving loan, Secured borrowing                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.62% 8.50%   11.62% 11.62% 11.62% 11.62% 8.50% 8.50% 8.50%
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 9.44% [2] 8.50% [1]   9.44% [2] 9.44% [2] 9.44% [2] 9.44% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 164.9 [3] $ 166.7 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 164.9 [3] $ 158.4 [6]                
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon 10.38% [2] 8.50% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 6.5 [3],[4] $ 4.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.5 [3],[4] $ 4.1 [6],[7]                
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon 10.38% [2] 8.50% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 4.3 [3],[4] $ 5.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.3 [3],[4] $ 4.7 [6]                
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 0.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   0.6                
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.8 10.8                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 10.8 10.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 10.8 10.8                
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.2 [4] $ 11.3 [7]                
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.47% [2] 6.75% [1]   10.47% [2] 10.47% [2] 10.47% [2] 10.47% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 28.0 [3],[4] $ 29.8 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 26.8 [3],[4] $ 29.8 [6]                
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.47% [2] 6.75% [1]   10.47% [2] 10.47% [2] 10.47% [2] 10.47% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 25.8 [3],[4] $ 46.7 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 24.8 [3],[4] 46.7 [6]                
Investment, Identifier [Axis]: DS Admiral Bidco, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.1 $ 0.1                
Investment, Identifier [Axis]: DS Admiral Bidco, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.16% [2] 6.75% [1]   10.16% [2] 10.16% [2] 10.16% [2] 10.16% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 11.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 11.9 [6],[7]                
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.6                
Less: funded commitments   (5.2)                
Total unfunded commitments   1.4                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   1.4                
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 6.3 [4] 4.2 [7]                
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., Class B common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [4] $ 0.0 [7]                
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [7],[14]   $ 0.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[14]   $ 0.3                
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   4.65%           4.65% 4.65% 4.65%
Total first lien senior secured loans [7],[14]   $ 4.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[14]   $ 4.8                
Investment, Identifier [Axis]: Datix Bidco Limited, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.95% [2] 4.18% [1]   8.95% [2] 8.95% [2] 8.95% [2] 8.95% [2] 4.18% [1] 4.18% [1] 4.18% [1]
Total first lien senior secured loans $ 4.3 [4],[5] $ 0.1 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.2 [4],[5] 0.1 [7],[8]                
Investment, Identifier [Axis]: Datix Bidco Limited, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.20%     12.20% 12.20% 12.20% 12.20%      
Total first lien senior secured loans [4],[5] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 0.7                  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.70%     8.70% 8.70% 8.70% 8.70%      
Total first lien senior secured loans [4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 0.9                  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.70%     11.70% 11.70% 11.70% 11.70%      
Total first lien senior secured loans [4] $ 11.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 10.7                  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 134.6                  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 12.5                  
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 16.5 16.5                
Less: funded commitments (6.6) (2.4)                
Total unfunded commitments 9.9 14.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 9.9 14.1                
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.4 [4] $ 10.0 [7]                
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 10.73% [2] 9.00% [1]   10.73% [2] 10.73% [2] 10.73% [2] 10.73% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 148.6 [3],[4] $ 148.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 145.6 [3],[4] $ 148.5 [6],[7]                
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.73% [2] 7.00% [1]   10.73% [2] 10.73% [2] 10.73% [2] 10.73% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 6.6 [3],[4] $ 2.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 6.5 [3],[4] $ 2.4 [6],[7]                
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 11.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 11.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 11.4                  
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 2.4                  
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.52% [2] 7.00% [1]   10.52% [2] 10.52% [2] 10.52% [2] 10.52% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 37.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] 36.9 [6],[7]                
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.52%     10.52% 10.52% 10.52% 10.52%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Topco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   5.4                
Less: funded commitments   0.0                
Total unfunded commitments   5.4                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   5.4                
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Topco LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   2.5                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.2 9.7                
Less: funded commitments (0.7) 0.0                
Total unfunded commitments 1.5 9.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.5 $ 9.7                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6]   $ 33.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 33.0                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.63%     10.63% 10.63% 10.63% 10.63%      
Total first lien senior secured loans [3],[4] $ 35.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 35.2                  
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.63% [2] 6.75% [1]   10.63% [2] 10.63% [2] 10.63% [2] 10.63% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 2.0 [3],[4] $ 8.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.0 [3],[4] $ 8.9 [6],[7]                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.75% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 11.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 11.4 [6],[7]                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 7.25% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 2.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 2.0 [6],[7]                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.63% [2] 0.00% [1]   10.63% [2] 10.63% [2] 10.63% [2] 10.63% [2] 0.00% [1] 0.00% [1] 0.00% [1]
Total first lien senior secured loans [3],[4],[13] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.7 [3],[4],[13] $ 0.0 [16]                
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 13.8 [4] 13.8 [7]                
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3 2.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.3 2.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 2.3 2.3                
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., Common units                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   600.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.2 [4] $ 1.0 [7]                
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.03% [2] 6.65% [1]   10.03% [2] 10.03% [2] 10.03% [2] 10.03% [2] 6.65% [1] 6.65% [1] 6.65% [1]
Total first lien senior secured loans $ 15.8 [3],[4] $ 16.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.8 [3],[4] $ 16.0 [6]                
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.03% [2] 6.65% [1]   10.03% [2] 10.03% [2] 10.03% [2] 10.03% [2] 6.65% [1] 6.65% [1] 6.65% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.03% [2] 6.65% [1]   10.03% [2] 10.03% [2] 10.03% [2] 10.03% [2] 6.65% [1] 6.65% [1] 6.65% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 0.1 [6],[7]                
Investment, Identifier [Axis]: Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc., Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 41.6 [4] $ 37.9 [7]                
Investment, Identifier [Axis]: Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.63% [2] 8.35% [1]   12.63% [2] 12.63% [2] 12.63% [2] 12.63% [2] 8.35% [1] 8.35% [1] 8.35% [1]
Total first lien senior secured loans $ 25.0 [4] $ 25.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 24.8 [4] 25.0                
Investment, Identifier [Axis]: Dye & Durham Corporation                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 18.2 19.5                
Less: funded commitments (5.0) 0.0                
Total unfunded commitments 13.2 19.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 13.2 $ 19.5                
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.69% [2] 6.50% [1]   10.69% [2] 10.69% [2] 10.69% [2] 10.69% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 40.0 [3],[4],[5] $ 72.0 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 40.0 [3],[4],[5] 70.9 [6],[7],[8]                
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.20%     11.20% 11.20% 11.20% 11.20%      
Total first lien senior secured loans [3],[4],[5] $ 5.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 5.0                  
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.1 7.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 7.1 7.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 7.1 7.1                
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.0 $ 8.6                
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.65% [2] 7.50% [1]   11.65% [2] 11.65% [2] 11.65% [2] 11.65% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 23.2 [3],[4] $ 25.7 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 23.2 [3],[4] 25.4 [6]                
Investment, Identifier [Axis]: EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P., Partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.7 [4],[5] $ 9.8 [7],[8]                
Investment, Identifier [Axis]: EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 7.00% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 177.9 [3],[4] $ 177.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 176.1 [3],[4] 176.1 [6],[7]                
Investment, Identifier [Axis]: EP Wealth Advisors, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.1 2.8                
Less: funded commitments 0.0 (0.2)                
Total unfunded commitments 14.1 2.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 14.1 $ 2.6                
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.50%           5.50% 5.50% 5.50%
Total first lien senior secured loans [6],[7]   $ 0.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.2                
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.01%     10.01% 10.01% 10.01% 10.01%      
Total first lien senior secured loans [3],[4] $ 5.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 5.6                  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 0.4 [3],[4] $ 0.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.4 [3],[4] $ 0.3 [6],[7]                
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.11%     10.11% 10.11% 10.11% 10.11%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.50%           5.50% 5.50% 5.50%
Total first lien senior secured loans [6],[7]   $ 0.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.2                
Investment, Identifier [Axis]: EPS NASS Parent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.5 6.6                
Less: funded commitments (0.8) (0.9)                
Total unfunded commitments 0.7 5.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.7 $ 5.7                
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 30.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.2 [3],[4] $ 30.5 [6],[7]                
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.8 [3],[4],[13] $ 0.9 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.8 [3],[4],[13] 0.9 [6],[7],[14]                
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 2.3 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (1.9) (0.3)                
Fair Value 3.1 2.8                
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   2.8                
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A-1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 3.0                  
Investment, Identifier [Axis]: ESCP PPG Holdings, LLC, Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1                  
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.1                  
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.07%     10.07% 10.07% 10.07% 10.07%      
Total first lien senior secured loans [3],[4] $ 6.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 6.7                  
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P., Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 6.0                  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[5] 25.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 23.9                  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.30%     12.30% 12.30% 12.30% 12.30%      
Total first lien senior secured loans [4],[5] $ 41.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 40.5                  
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 8.8 3.5                
Redemptions (cost) 57.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 2.5                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): (57.0) 0.0                
Net unrealized gains (losses): 25.1 (8.1)                
Fair Value 0.0 23.1                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.9                
Less: funded commitments   (6.7)                
Total unfunded commitments   0.2                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   (0.2)                
Total net adjusted unfunded revolving and delayed draw commitments   0.0                
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   26.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   18.4                
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   6.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   4.7                
Investment, Identifier [Axis]: Eckler Purchaser LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc, Preferred equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 5.3                  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.1 4.1                
Less: funded commitments (4.1) (2.3)                
Total unfunded commitments 0.0 1.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 1.8                
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 62.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 61.9                
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.74%     10.74% 10.74% 10.74% 10.74%      
Total first lien senior secured loans [3] $ 50.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 48.5                  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.68% [2] 6.50% [1]   10.68% [2] 10.68% [2] 10.68% [2] 10.68% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 11.3 [3],[4] $ 20.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.0 [3],[4] $ 20.5 [6],[7]                
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.68%     10.68% 10.68% 10.68% 10.68%      
Total first lien senior secured loans [3],[4] $ 5.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 5.6                  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.51% [2] 6.50% [1]   10.51% [2] 10.51% [2] 10.51% [2] 10.51% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 4.1 [3],[4] $ 2.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.0 [3],[4] 2.3 [6],[7]                
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., Preferred equity                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   5.5                
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 14.2                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 17.1                  
Less: funded commitments (1.5)                  
Total unfunded commitments 15.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 15.6                  
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 8.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 8.7                
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.86%     10.86% 10.86% 10.86% 10.86%      
Total first lien senior secured loans [3],[4] $ 10.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 10.0                  
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.47% [2] 6.50% [1]   9.47% [2] 9.47% [2] 9.47% [2] 9.47% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 9.1 [3],[4] $ 0.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.0 [3],[4] $ 0.3 [6],[7]                
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 5.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   5.2                
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.36%     10.36% 10.36% 10.36% 10.36%      
Total first lien senior secured loans [3],[4],[13] $ 1.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] 1.4                  
Investment, Identifier [Axis]: Emergency Communications Network, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.8 6.5                
Less: funded commitments (6.8) 0.0                
Total unfunded commitments 0.0 6.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 6.5                
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 11.84% [2] 8.75% [1]   11.84% [2] 11.84% [2] 11.84% [2] 11.84% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 48.4 [3],[4] $ 46.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 43.6 [3],[4] 42.4 [6],[7]                
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 12.15%     12.15% 12.15% 12.15% 12.15%      
Total first lien senior secured loans [3],[4] $ 6.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 6.1                  
Investment, Identifier [Axis]: Ensemble RCM, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.19%     9.19% 9.19% 9.19% 9.19%      
Total first lien senior secured loans [3] $ 2.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 2.5                  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.5 14.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 14.5 14.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 14.5 $ 14.5                
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 4.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 4.6                
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 6.69%     6.69% 6.69% 6.69% 6.69%      
Total first lien senior secured loans [4] $ 5.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 5.5                  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 5.75% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 6.0 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 6.0 [7]                
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.50% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 0.1 [6],[7]                
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 28.0 53.3                
Less: funded commitments (6.2) (1.0)                
Total unfunded commitments 21.8 52.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 21.8 52.3                
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 42.0 [4] $ 34.4 [7]                
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.49%     9.49% 9.49% 9.49% 9.49%      
Total first lien senior secured loans [3],[4] $ 78.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 76.5                  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 72.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 72.7                
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.49% [2] 6.75% [1]   9.49% [2] 9.49% [2] 9.49% [2] 9.49% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 48.2 [3],[4] $ 80.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 47.2 [3],[4] $ 80.4 [6],[7]                
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.71%     9.71% 9.71% 9.71% 9.71%      
Total first lien senior secured loans [3],[4] $ 19.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 19.2                  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 14.94%     14.94% 14.94% 14.94% 14.94%      
Total first lien senior secured loans [3],[4] $ 5.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 5.5                  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: European Capital UK SME Debt LP                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.8 7.7                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 2.0 0.4                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.4 4.9                
Fair Value 26.5 26.9                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 54.3 60.9                
Less: funded commitments (49.1) (55.1)                
Total unfunded commitments 5.2 5.8                
Less: commitments substantially at discretion of the Company 5.2 5.8                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Investment, Identifier [Axis]: European Capital UK SME Debt LP, Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.5 [5] 26.9 [8],[19]                
Investment, Identifier [Axis]: Everspin Technologies, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 0.0                
Investment, Identifier [Axis]: Everspin Technologies, Inc., Warrant to purchase up to 18,461 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0                  
Investment, Identifier [Axis]: Evolent Health LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4],[5] $ 7.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 7.7                  
Investment, Identifier [Axis]: Excelligence Holdings Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.73% [2] 7.00% [1]   10.73% [2] 10.73% [2] 10.73% [2] 10.73% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 9.2 [3],[4] $ 9.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.2 [3],[4] $ 9.3 [6],[7]                
Investment, Identifier [Axis]: Explorer Investor, Inc                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2                  
Investment, Identifier [Axis]: Explorer Investor, Inc, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.15%     10.15% 10.15% 10.15% 10.15%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.9                  
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 16.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 16.4                
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 1.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   1.0                
Investment, Identifier [Axis]: Extrahop Networks, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.9 8.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 5.9 8.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 5.9 8.5                
Investment, Identifier [Axis]: Extrahop Networks, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.23%     12.23% 12.23% 12.23% 12.23%      
Total first lien senior secured loans [3],[4] $ 20.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 20.2                  
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.5 0.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.5 0.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.5 0.5                
Investment, Identifier [Axis]: FM:Systems Group, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.5 1.5                
Less: funded commitments 0.0 (1.5)                
Total unfunded commitments 1.5 0.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.5 $ 0.0                
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7]   $ 3.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 3.2                
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.13%     9.13% 9.13% 9.13% 9.13%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.96% [2] 7.50% [1]   10.96% [2] 10.96% [2] 10.96% [2] 10.96% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 1.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] $ 1.4 [6],[7]                
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7]   $ 1.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   1.5                
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.6 9.6                
Less: funded commitments (0.5) (0.5)                
Total unfunded commitments 9.1 9.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 9.1 9.1                
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 31.2 [4] $ 19.2 [7]                
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.49% [2] 5.36% [1]   9.49% [2] 9.49% [2] 9.49% [2] 9.49% [2] 5.36% [1] 5.36% [1] 5.36% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] $ 0.1 [7]                
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: Faraday Buyer, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.7                  
Less: funded commitments 0.0                  
Total unfunded commitments 4.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.7                  
Investment, Identifier [Axis]: Faraday Buyer, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.32%     11.32% 11.32% 11.32% 11.32%      
Total first lien senior secured loans [3],[4] $ 52.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 50.6                  
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   80.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   80.3                
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Warrant to purchase shares of Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 1.2                
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Warrant to purchase up to 633,008 shares of Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.0                  
Investment, Identifier [Axis]: Ferrellgas, L.P. and Ferrellgas Partners L.P., Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.9                  
Investment, Identifier [Axis]: Ferrellgas, L.P. and Ferrellgas Partners L.P., Senior preferred units                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 896.00%     896.00% 896.00% 896.00% 896.00%      
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 60.0                  
Investment, Identifier [Axis]: Ferrellgas, L.P., Senior preferred units                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.96%           8.96% 8.96% 8.96%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 55.7                
Investment, Identifier [Axis]: First Insight, Inc., Warrant to purchase units of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0 [7]                
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.5 10.0                
Less: funded commitments (7.1) (4.9)                
Total unfunded commitments 7.4 5.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 7.4 $ 5.1                
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 5.50% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 29.6 [3],[4] $ 30.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 29.6 [3],[4] $ 29.3 [6]                
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 5.50% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 1.1 [3],[4] $ 1.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.1 [3],[4] $ 1.1 [6]                
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 5.50% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 6.5 [3],[4],[13] $ 4.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.5 [3],[4],[13] 4.8 [6],[7]                
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.50%     11.50% 11.50% 11.50% 11.50%      
Total first lien senior secured loans [3],[4],[13] $ 0.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] 0.5                  
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.5 [4] $ 1.1 [7]                
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.32% [2] 5.75% [1]   9.32% [2] 9.32% [2] 9.32% [2] 9.32% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 0.4 [3],[4] $ 4.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.4 [3],[4] $ 4.3 [6],[7]                
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.38%     9.38% 9.38% 9.38% 9.38%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Florida Food Products, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.38% [2] 8.75% [1]   12.38% [2] 12.38% [2] 12.38% [2] 12.38% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 71.8 [3],[4] $ 71.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 70.4 [3],[4] 71.1 [6],[7]                
Investment, Identifier [Axis]: Flow Control Solutions, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.0                
Less: funded commitments   0.0                
Total unfunded commitments   6.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 6.0                
Investment, Identifier [Axis]: Flow Control Solutions, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 10.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   10.8                
Investment, Identifier [Axis]: Forescout Technologies, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.2 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 14.2 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 14.2 0.1                
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [6],[7]   18.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 18.5                
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 14.23%     14.23% 14.23% 14.23% 14.23%      
Total first lien senior secured loans [3],[4] $ 23.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 23.8                  
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 12.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 12.6                  
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.15% [2] 7.38% [1]   10.15% [2] 10.15% [2] 10.15% [2] 10.15% [2] 7.38% [1] 7.38% [1] 7.38% [1]
Total first lien senior secured loans $ 12.8 [3],[4] $ 24.9 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 12.8 [3],[4] 24.8 [6]                
Investment, Identifier [Axis]: Foundation Risk Partners, Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 40.5 38.1                
Less: funded commitments (8.6) 0.0                
Total unfunded commitments 31.9 38.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 31.9 $ 38.1                
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.68% [2] 6.50% [1]   10.68% [2] 10.68% [2] 10.68% [2] 10.68% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 112.6 [3],[4] $ 169.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 111.5 [3],[4] 167.7 [6],[7]                
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.68%     10.68% 10.68% 10.68% 10.68%      
Total first lien senior secured loans [3],[4] $ 30.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 30.0                  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.68%     10.68% 10.68% 10.68% 10.68%      
Total first lien senior secured loans [3],[4] $ 1.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.1                  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.32%     10.32% 10.32% 10.32% 10.32%      
Total first lien senior secured loans [3] $ 8.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 8.5                  
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   6.7                
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 7.9                
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6]   $ 14.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 14.9                
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7]   $ 0.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.1                
Investment, Identifier [Axis]: GF Parent LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: GF Parent LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: GF Parent LLC, Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 47.5 47.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 47.5 47.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 47.5 47.5                
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 27.8 [4] $ 32.2 [7]                
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.50% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 114.0 [3],[4] $ 114.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 111.8 [3],[4] 114.0 [6],[7]                
Investment, Identifier [Axis]: GI Ranger Intermediate LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.2 9.0                
Less: funded commitments (0.4) 0.0                
Total unfunded commitments 8.8 9.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 8.8 $ 9.0                
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 35.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   34.8                
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 10.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 10.0                  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 1.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.7                  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.4                  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 3.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 3.1                  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 8.7                  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.65%     10.65% 10.65% 10.65% 10.65%      
Total first lien senior secured loans [3],[4],[5] $ 30.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 30.8                  
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.1 18.3                
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Warrant to purchase common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   1.9                
Investment, Identifier [Axis]: GPM Investments, LLC and ARKO Corp., Warrant to purchase units of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.9                  
Investment, Identifier [Axis]: GSV PracticeTek Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 14.0                  
Investment, Identifier [Axis]: Galway Borrower LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.8 23.3                
Less: funded commitments (0.4) (0.4)                
Total unfunded commitments 9.4 22.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 9.4 $ 22.9                
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.00% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 34.2 [3],[4] $ 59.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 32.8 [3],[4] $ 58.5 [6],[7]                
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   7.5                
Less: funded commitments   (7.5)                
Total unfunded commitments   0.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   0.0                
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   21.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   0.0                
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   7.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   0.0                
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Gehl Foods, LLC and GF Parent LLC, Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.5 1.5                
Less: funded commitments (1.5) (1.5)                
Total unfunded commitments 0.0 0.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.4 [4] $ 0.9 [7]                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.25%           5.25% 5.25% 5.25%
Total first lien senior secured loans [6],[7]   $ 9.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 9.0                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.92%     7.92% 7.92% 7.92% 7.92%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.42% [2] 4.22% [1]   8.42% [2] 8.42% [2] 8.42% [2] 8.42% [2] 4.22% [1] 4.22% [1] 4.22% [1]
Total first lien senior secured loans $ 0.1 [4] $ 0.2 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [4] $ 0.2 [7]                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.92% [2] 4.22% [1]   7.92% [2] 7.92% [2] 7.92% [2] 7.92% [2] 4.22% [1] 4.22% [1] 4.22% [1]
Total first lien senior secured loans $ 1.5 [4] $ 1.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.5 [4] $ 1.5 [7]                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.25%           8.25% 8.25% 8.25%
Total first lien senior secured loans [6],[7]   $ 21.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 20.7                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.24%     11.24% 11.24% 11.24% 11.24%      
Total first lien senior secured loans [4] $ 32.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 31.7                  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.24% [2] 7.63% [1]   11.24% [2] 11.24% [2] 11.24% [2] 11.24% [2] 7.63% [1] 7.63% [1] 7.63% [1]
Total first lien senior secured loans $ 21.1 [3],[4] $ 32.4 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 20.7 [3],[4] $ 31.4 [7]                
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.24% [2] 7.70% [1]   11.24% [2] 11.24% [2] 11.24% [2] 11.24% [2] 7.70% [1] 7.70% [1] 7.70% [1]
Total first lien senior secured loans $ 7.5 [4] $ 7.5 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 7.4 [4] 7.3 [7]                
Investment, Identifier [Axis]: Genomatica, Inc., Warrant to purchase 322,422 shares of Series D preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0                  
Investment, Identifier [Axis]: Genomatica, Inc., Warrant to purchase shares of Series D preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 0.0                
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.63%     8.63% 8.63% 8.63% 8.63%      
Total first lien senior secured loans [3],[4],[11] $ 12.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 8.5                  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.42%     8.42% 8.42% 8.42% 8.42%      
Total first lien senior secured loans [3],[4],[11] $ 25.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 17.9                  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.10% [2] 7.50% [1]   11.10% [2] 11.10% [2] 11.10% [2] 11.10% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 95.4 [3],[4] $ 95.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 71.6 [3],[4] 94.5 [6],[7]                
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase units of common stock 1                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   3.0                
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase units of common stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase up to 1,926.57 units of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.0                  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Warrant to purchase up to 115,733 units of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.8                  
Investment, Identifier [Axis]: Global Music Rights, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.3 4.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.3 4.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.3 $ 4.3                
Investment, Identifier [Axis]: Global Music Rights, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.50% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 22.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 22.1 [6],[7]                
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 33.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 33.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 33.8                  
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.80%     11.80% 11.80% 11.80% 11.80%      
Total first lien senior secured loans [3],[4] $ 17.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 17.4                  
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, Series E-1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 14.2                  
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, Warrant to purchase up to 43,154 shares of Series E-1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.0 5.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 5.0 5.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 5.0 5.0                
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.43%     10.43% 10.43% 10.43% 10.43%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 57.5                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4] 43.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 40.0                  
Investment, Identifier [Axis]: Green Street Parent, LLC and Green Street Intermediate Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   0.3                
Less: funded commitments   0.0                
Total unfunded commitments   0.3                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 0.3                
Investment, Identifier [Axis]: Green Street Parent, LLC and Green Street Intermediate Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 23.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   23.7                
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.5 $ 6.8                
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.07% [2] 6.00% [1]   8.07% [2] 8.07% [2] 8.07% [2] 8.07% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 26.4 [4],[11] $ 75.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 23.3 [4],[11] $ 75.0 [6],[7]                
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.38%     8.38% 8.38% 8.38% 8.38%      
Total first lien senior secured loans [4],[11] $ 3.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] $ 3.0                  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.38%     9.38% 9.38% 9.38% 9.38%      
Total first lien senior secured loans [3],[4],[11] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 0.1                  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.38% [2] 7.10% [1]   11.38% [2] 11.38% [2] 11.38% [2] 11.38% [2] 7.10% [1] 7.10% [1] 7.10% [1]
Total first lien senior secured loans $ 73.0 [4] $ 73.0 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 62.8 [4] 73.0 [7]                
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 19.0 19.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 19.0 19.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 19.0 19.0                
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.1 [4] $ 2.3 [7]                
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 6.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 60.5 [3],[4] $ 61.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 60.5 [3],[4] $ 61.0 [6]                
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.41% [2] 6.00% [1]   11.41% [2] 11.41% [2] 11.41% [2] 11.41% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 7.8 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.8 [3],[4] 0.1 [6],[7]                
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.42%     10.42% 10.42% 10.42% 10.42%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: HCI Equity, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.0 (0.1)                
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: HCI Equity, LLC, Member interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [5],[11] 0.0 [8],[12]                
Investment, Identifier [Axis]: HGC Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.5                  
Less: funded commitments 0.0                  
Total unfunded commitments 7.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 7.5                  
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.8 18.1                
Less: funded commitments (2.8) (0.5)                
Total unfunded commitments 12.0 17.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 12.0 17.6                
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.2 [4] $ 2.9 [7]                
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.19% [2] 6.50% [1]   10.19% [2] 10.19% [2] 10.19% [2] 10.19% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 5.8 [3],[4] $ 2.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.7 [3],[4] $ 2.6 [6],[7]                
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.94% [2] 6.50% [1]   9.94% [2] 9.94% [2] 9.94% [2] 9.94% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 2.8 [3],[4] $ 0.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.7 [3],[4] 0.5 [6],[7]                
Investment, Identifier [Axis]: Halcon Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.8                
Less: funded commitments   0.0                
Total unfunded commitments   6.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 6.8                
Investment, Identifier [Axis]: Halcon Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.20% [2] 7.17% [1]   12.20% [2] 12.20% [2] 12.20% [2] 12.20% [2] 7.17% [1] 7.17% [1] 7.17% [1]
Total first lien senior secured loans $ 13.4 [4] $ 19.0 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 13.4 [4] 18.9 [7]                
Investment, Identifier [Axis]: Halex Holdings, Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.0 0.0                
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: Halex Holdings, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 0.0                
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.43%     10.43% 10.43% 10.43% 10.43%      
Total first lien senior secured loans [3],[4] $ 54.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 53.2                  
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.93%     13.93% 13.93% 13.93% 13.93%      
Total first lien senior secured loans [3],[4] $ 110.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 106.8                  
Investment, Identifier [Axis]: Harvey Tool Company, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 28.5 29.5                
Less: funded commitments 0.0 (5.9)                
Total unfunded commitments 28.5 23.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 28.5 $ 23.6                
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.64% [2] 6.25% [1]   10.64% [2] 10.64% [2] 10.64% [2] 10.64% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 1.1 [3],[4] $ 22.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.1 [3],[4] $ 22.5 [6],[7]                
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7],[14]   $ 5.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   5.8                
Investment, Identifier [Axis]: HealthEdge Software, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 36.2 42.3                
Less: funded commitments (0.3) (0.3)                
Total unfunded commitments 35.9 42.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 35.9 $ 42.0                
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.74% [2] 7.25% [1]   11.74% [2] 11.74% [2] 11.74% [2] 11.74% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 87.2 [3],[4] $ 79.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 87.2 [3],[4] $ 79.2 [6],[7]                
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.0 4.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.0 4.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.0 $ 4.0                
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 6.50% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 40.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 40.5 [6],[7]                
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   41.7                
Redemptions (cost)   8.5                
Sales (cost)   0.0                
Interest income   1.5                
Capital structuring service fees   0.7                
Dividend income   0.4                
Other income   0.0                
Net realized gains (losses):   0.2                
Net unrealized gains (losses):   9.3                
Fair Value   69.4                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   51.0                
Less: funded commitments   0.0                
Total unfunded commitments   51.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   51.0                
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 95.4                  
Redemptions (cost) 0.0                  
Sales (cost) 0.0                  
Interest income 7.1                  
Capital structuring service fees 1.9                  
Dividend income 0.0                  
Other income 0.0                  
Net realized gains (losses): 0.0                  
Net unrealized gains (losses): 42.6                  
Fair Value 209.6                  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, Class A1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 124.0                  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, Class A2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.3                  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 11.00%     11.00% 11.00% 11.00% 11.00%      
Total first lien senior secured loans [3],[4] $ 79.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 79.3                  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC, Class A1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 30.4                
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [6],[7]   $ 39.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   39.0                
Investment, Identifier [Axis]: Help/Systems Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.5 7.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 7.5 7.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 7.5 7.5                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 25.5 8.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 25.5 8.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 25.5 $ 8.0                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.73% [2] 6.75% [1]   10.73% [2] 10.73% [2] 10.73% [2] 10.73% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 22.8 [3],[4] $ 55.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 22.6 [3],[4] $ 54.5 [6],[7]                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.99% [2] 6.75% [1]   9.99% [2] 9.99% [2] 9.99% [2] 9.99% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 14.7 [3],[4] $ 10.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.4 [3],[4] 10.3 [6],[7]                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 12.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 12.1                  
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 7.1 [4] 11.1 [7]                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 112.9 [4] 101.2 [7]                
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, Series C common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.6 [4] 11.9 [7]                
Investment, Identifier [Axis]: HighTower Holding, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 675.00%     675.00% 675.00% 675.00% 675.00%      
Total first lien senior secured loans [4],[5] $ 8.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 6.7                  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.5 9.5                
Less: funded commitments (1.1) (5.9)                
Total unfunded commitments 8.4 3.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.4 3.6                
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, Co-invest units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.8 [4] $ 3.5 [7]                
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.88%     8.88% 8.88% 8.88% 8.88%      
Total first lien senior secured loans [3],[4],[11] $ 11.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 10.9                  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.13% [2] 3.85% [1]   8.13% [2] 8.13% [2] 8.13% [2] 8.13% [2] 3.85% [1] 3.85% [1] 3.85% [1]
Total first lien senior secured loans $ 1.0 [4],[13] $ 5.9 [7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.9 [4],[13] $ 5.8 [7],[14]                
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.72% [2] 8.75% [1]   12.72% [2] 12.72% [2] 12.72% [2] 12.72% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 70.4 [3],[4] $ 70.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 64.0 [3],[4] 66.1 [6],[7]                
Investment, Identifier [Axis]: Hometown Food Company                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.9 3.9                
Less: funded commitments (0.8) 0.0                
Total unfunded commitments 3.1 3.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.1 $ 3.9                
Investment, Identifier [Axis]: Hometown Food Company, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.39%     9.39% 9.39% 9.39% 9.39%      
Total first lien senior secured loans [3],[4],[13] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] $ 0.8                  
Investment, Identifier [Axis]: Honor Technology, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 14.38% [2] 11.00% [1]   14.38% [2] 14.38% [2] 14.38% [2] 14.38% [2] 11.00% [1] 11.00% [1] 11.00% [1]
Total first lien senior secured loans $ 2.5 [3],[4] $ 2.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.3 [3],[4] 2.5 [6],[7]                
Investment, Identifier [Axis]: Honor Technology, Inc., Warrant to purchase shares of series D-2 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.1                
Investment, Identifier [Axis]: Honor Technology, Inc., Warrant to purchase up to 133,333 units of series D-2 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.0                  
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 22.6 22.6                
Less: funded commitments (9.4) (1.6)                
Total unfunded commitments 13.2 21.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 13.2 $ 21.0                
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 5.5                  
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 60.4 [3],[4] $ 105.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 56.1 [3],[4] $ 104.8 [6],[7]                
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 9.4 [3],[4] $ 1.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 8.7 [3],[4] 1.4 [6],[7]                
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 99.5 [4] 90.2 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 82.6 [4] 88.8 [7]                
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP, Company units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   8.8                
Investment, Identifier [Axis]: IQN Holding Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 6.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 6.8                  
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.65%     9.65% 9.65% 9.65% 9.65%      
Total first lien senior secured loans [3],[4] $ 23.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 23.3                  
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.71%     9.71% 9.71% 9.71% 9.71%      
Total first lien senior secured loans [3],[4] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.4                  
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Class A-1 common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 26.1                
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   4.35%           4.35% 4.35% 4.35%
Total first lien senior secured loans   $ 42.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 42.3                
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.10%           8.10% 8.10% 8.10%
Total first lien senior secured loans [7]   $ 86.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   86.8                
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Series A-1 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   66.0                
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.0                  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 12.5                  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.63%     10.63% 10.63% 10.63% 10.63%      
Total first lien senior secured loans [3],[4] $ 3.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 3.5                  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.8                  
Less: funded commitments (0.2)                  
Total unfunded commitments 9.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 9.6                  
Investment, Identifier [Axis]: ITI Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.7                  
Less: funded commitments (2.0)                  
Total unfunded commitments 3.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 3.7                  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.08%     10.08% 10.08% 10.08% 10.08%      
Total first lien senior secured loans [3],[4] $ 35.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 34.7                  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.00%     12.00% 12.00% 12.00% 12.00%      
Total first lien senior secured loans [3],[4] $ 3.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 2.9                  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.88%     9.88% 9.88% 9.88% 9.88%      
Total first lien senior secured loans [3] $ 1.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 1.1                  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.00%     12.00% 12.00% 12.00% 12.00%      
Total first lien senior secured loans [3],[4] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.8                  
Investment, Identifier [Axis]: IV Rollover Holdings, LLC, Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.1 [7]                
Investment, Identifier [Axis]: IV Rollover Holdings, LLC, Class X units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.1 [4] 2.2 [7]                
Investment, Identifier [Axis]: IfByPhone Inc., Warrant to purchase shares of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 3.9 0.0                
Sales (cost) 0.0 0.0                
Interest income 2.4 2.4                
Capital structuring service fees 0.7 0.0                
Dividend income 23.1 0.0                
Other income 0.5 0.6                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (5.4) 8.4                
Fair Value 47.8 53.0                
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 0.2                
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Class B common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.3 $ 1.4                
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 14.00% [2] 14.00% [1]   14.00% [2] 14.00% [2] 14.00% [2] 14.00% [2] 14.00% [1] 14.00% [1] 14.00% [1]
Total first lien senior secured loans $ 16.6 [4] $ 16.6 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 16.6 [4] 16.6 [7]                
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 29.8 $ 34.8                
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 13.98% [2] 8.75% [1]   13.98% [2] 13.98% [2] 13.98% [2] 13.98% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 102.7 [3],[4] $ 103.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 92.4 [3],[4] $ 95.1 [6],[7]                
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon 12.48% [2] 8.75% [1]   12.48% [2] 12.48% [2] 12.48% [2] 12.48% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 14.1 [3],[4] $ 14.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.6 [3],[4] $ 13.0 [6],[7]                
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon 12.48% [2] 8.75% [1]   12.48% [2] 12.48% [2] 12.48% [2] 12.48% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 5.0 [3],[4] $ 1.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.5 [3],[4] $ 1.2 [6],[7]                
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon 13.98% [2] 8.75% [1]   13.98% [2] 13.98% [2] 13.98% [2] 13.98% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 1.3 [3],[4] $ 5.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.1 [3],[4] $ 4.6 [6],[7]                
Investment, Identifier [Axis]: Imprivata, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.57%     10.57% 10.57% 10.57% 10.57%      
Total first lien senior secured loans [3],[4] $ 16.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 15.1                  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 13.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 13.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 13.0                  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 9.5                  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.40%     11.40% 11.40% 11.40% 11.40%      
Total first lien senior secured loans [3],[4] $ 11.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 11.1                  
Investment, Identifier [Axis]: Inmar, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.38% [2] 9.00% [1]   12.38% [2] 12.38% [2] 12.38% [2] 12.38% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 28.3 [3],[4] $ 28.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.6 [3],[4] $ 28.3 [6],[7]                
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 0.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.5                
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 16.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 16.0                
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 7.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 7.9                
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 7.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   7.5                
Investment, Identifier [Axis]: Insightful Science, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   50.5                
Investment, Identifier [Axis]: Insightful Science, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   39.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   38.8                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Common stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 0.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.50%           10.50% 10.50% 10.50%
Total first lien senior secured loans [6],[7]   $ 4.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   4.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Senior preferred series A-1 shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   36.4                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series B preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series B preferred stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., Series C preferred stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 17.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 17.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 17.2                  
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.33%     11.33% 11.33% 11.33% 11.33%      
Total first lien senior secured loans [3],[4] $ 17.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 17.1                  
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.7                  
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   19.2                
Less: funded commitments   (6.2)                
Total unfunded commitments   13.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 13.0                
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[8]   $ 14.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[8]   $ 14.8                
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7],[8]   $ 10.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 10.8                
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7],[8]   $ 6.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   6.2                
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 1,544.2 347.5                
Redemptions (cost) 277.6 70.5                
Sales (cost) 0.0 37.0                
Interest income 22.5 2.9                
Capital structuring service fees 0.0 0.0                
Dividend income 205.0 93.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (1.0) 67.3                
Fair Value 2,201.1 935.8                
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P., Member interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1,701.1 [5] $ 919.8 [8]                
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.01% [2] 7.25% [1]   11.01% [2] 11.01% [2] 11.01% [2] 11.01% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 500.0 [3],[5] $ 16.0 [6],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 500.0 [3],[5] 16.0 [6],[8]                
Investment, Identifier [Axis]: JDC Healthcare Management, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.8 4.4                
Less: funded commitments (4.8) (4.4)                
Total unfunded commitments 0.0 0.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 40.9 [4],[9] 37.2 [7],[10]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.1 [4],[9] 26.5 [7],[10]                
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 4.8 [4],[9] 4.4 [7],[10]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.6 [4],[9] 3.1 [7],[10]                
Investment, Identifier [Axis]: JWC/KI Holdings, LLC, Membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.0 [4] 7.7 [7]                
Investment, Identifier [Axis]: Javlin Three LLC, Javlin Four LLC, and Javlin Five LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[8],[10]   15.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8],[10]   0.4                
Investment, Identifier [Axis]: Jenny C Acquisition, Inc., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 1.6 [4] 1.4 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.6 [4] 1.4 [7]                
Investment, Identifier [Axis]: Jim N Nicks Management, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   4.8                
Less: funded commitments   (2.8)                
Total unfunded commitments   2.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 2.0                
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6]   $ 14.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 14.7                
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7]   $ 2.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   2.8                
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 10.65%     10.65% 10.65% 10.65% 10.65%      
Total first lien senior secured loans [3],[4] $ 19.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 18.8                  
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., Series A convertible preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 5.5                  
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., Warrant to purchase up to 76,491 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.3                  
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC)                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.3 0.3                
Sales (cost) 0.0 0.0                
Interest income 0.1 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.5 0.0                
Net unrealized gains (losses): 0.1 0.0                
Fair Value 0.0 0.3                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   1.4                
Less: funded commitments   0.0                
Total unfunded commitments   1.4                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   1.4                
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC), Equity interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 0.0                
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC), First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   4.13%           4.13% 4.13% 4.13%
Total first lien senior secured loans [7],[8]   $ 0.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   0.3                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.1 10.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 9.1 10.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 9.1 10.9                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.3 [4] $ 1.6 [7]                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.73% [2] 6.00% [1]   9.73% [2] 9.73% [2] 9.73% [2] 9.73% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 50.4 [3],[4] $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 50.4 [3],[4] $ 0.6 [6],[7]                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.73% [2] 6.00% [1]   9.73% [2] 9.73% [2] 9.73% [2] 9.73% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 2.3 [3],[4] $ 51.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.3 [3],[4] $ 51.0 [6]                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.54% [2] 6.00% [1]   9.54% [2] 9.54% [2] 9.54% [2] 9.54% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 0.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3],[4] $ 0.2 [6],[7]                
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: KBHS Acquisition, LLC (d/b/a Alita Care, LLC)                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.0 5.0                
Less: funded commitments (3.2) (0.8)                
Total unfunded commitments 1.8 4.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.8 $ 4.2                
Investment, Identifier [Axis]: KBHS Acquisition, LLC (d/b/a Alita Care, LLC), First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 9.72%     9.72% 9.72% 9.72% 9.72%      
Total first lien senior secured loans [3],[4] $ 3.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 3.1                  
Investment, Identifier [Axis]: KBHS Acquisition, LLC, (d/b/a/ Alita Care, LLC) First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[7]   $ 0.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.8                
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   4.75%           4.75% 4.75% 4.75%
Total first lien senior secured loans [6]   $ 29.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 27.6                
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.75%           8.75% 8.75% 8.75%
Total first lien senior secured loans [6],[7]   $ 35.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   32.0                
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.92%     9.92% 9.92% 9.92% 9.92%      
Total first lien senior secured loans [3] $ 5.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 5.5                  
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.42%     11.42% 11.42% 11.42% 11.42%      
Total first lien senior secured loans [3],[4] $ 1.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.3                  
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.2 $ 0.9                
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.92% [2] 7.00% [1]   9.92% [2] 9.92% [2] 9.92% [2] 9.92% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 12.6 [3],[4] $ 12.6 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.6 [3],[4] $ 12.3 [6]                
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.92% [2] 7.00% [1]   9.92% [2] 9.92% [2] 9.92% [2] 9.92% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 3.3 [3],[4] $ 3.4 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.3 [3],[4] 3.3 [6]                
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 31.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 31.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 31.2                  
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.33%     10.33% 10.33% 10.33% 10.33%      
Total first lien senior secured loans [3],[4] $ 167.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 162.0                  
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc., Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 40.0                  
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   23.0                
Less: funded commitments   0.0                
Total unfunded commitments   23.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 23.0                
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.41% [2] 6.75% [1]   10.41% [2] 10.41% [2] 10.41% [2] 10.41% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 56.8 [3],[4] $ 60.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 51.1 [3],[4] $ 60.8 [6],[7]                
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.41% [2] 6.75% [1]   10.41% [2] 10.41% [2] 10.41% [2] 10.41% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 21.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 21.1 [6],[7]                
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.9 8.9                
Less: funded commitments (0.2) (0.2)                
Total unfunded commitments 8.7 8.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.7 8.7                
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.0 [4] $ 5.3 [7]                
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.98% [2] 5.25% [1]   8.98% [2] 8.98% [2] 8.98% [2] 8.98% [2] 5.25% [1] 5.25% [1] 5.25% [1]
Total first lien senior secured loans $ 40.6 [3],[4] $ 41.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 39.8 [3],[4] $ 41.1 [6]                
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 60.0 [4] 54.3 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 58.8 [4] 52.7 [7]                
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 8.0 [4] 7.2 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 7.8 [4] 7.0 [7]                
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Warrant to purchase Class C interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   4.2                
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Warrant to purchase up to 24.7581 Class C interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 8.3                  
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 10.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 10.1                  
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans $ 35.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 34.6                  
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P., Limited partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.7                  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 4.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 4.4                  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 5.4                  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.44%     10.44% 10.44% 10.44% 10.44%      
Total first lien senior secured loans [3],[4] $ 8.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 8.3                  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.0 [5] $ 3.5 [8]                
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.50%           10.50% 10.50% 10.50%
Total first lien senior secured loans [7],[8]   $ 37.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 37.0                
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.50%     10.50% 10.50% 10.50% 10.50%      
Total first lien senior secured loans [4],[5] $ 3.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 3.0                  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.50% [2] 10.50% [1]   10.50% [2] 10.50% [2] 10.50% [2] 10.50% [2] 10.50% [1] 10.50% [1] 10.50% [1]
Total first lien senior secured loans $ 37.0 [4],[5] $ 3.0 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 36.6 [4],[5] 3.0 [7],[8]                
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.9 16.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.9 16.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.9 $ 16.2                
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.59% [2] 7.00% [1]   10.59% [2] 10.59% [2] 10.59% [2] 10.59% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 21.2 [3],[4] $ 6.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 21.6 [3],[4] 6.8 [6],[7]                
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.89%     10.89% 10.89% 10.89% 10.89%      
Total first lien senior secured loans [3],[4] $ 6.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 6.8                  
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.42%     10.42% 10.42% 10.42% 10.42%      
Total first lien senior secured loans [3],[4] $ 6.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 6.2                  
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, Membership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 15.5 2.8                
Investment, Identifier [Axis]: LTG Acquisition, Inc., Class A membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 41.3 44.6                
Less: funded commitments (8.8) 0.0                
Total unfunded commitments 32.5 44.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 32.5 44.6                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.5 [4] $ 4.1 [7]                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6]   $ 21.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 21.6                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.98%     9.98% 9.98% 9.98% 9.98%      
Total first lien senior secured loans [3],[4] $ 23.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 22.7                  
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.73% [2] 6.75% [1]   8.73% [2] 8.73% [2] 8.73% [2] 8.73% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 16.7 [3] $ 25.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 16.0 [3] $ 25.5 [6]                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.55% [2] 6.75% [1]   9.55% [2] 9.55% [2] 9.55% [2] 9.55% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 4.4 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.2 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.73% [2] 6.75% [1]   8.73% [2] 8.73% [2] 8.73% [2] 8.73% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 10.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] 10.7 [6],[7]                
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.25%     12.25% 12.25% 12.25% 12.25%      
Total first lien senior secured loans [3],[4] $ 8.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 8.4                  
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   11.1                
Less: funded commitments   (3.6)                
Total unfunded commitments   7.5                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   7.5                
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   6.2                
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [6],[7]   51.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 51.2                
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 3.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   3.6                
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [6],[7]   40.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   40.1                
Investment, Identifier [Axis]: Largest Portfolio Company Investment | Senior Direct Lending Program                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 377.0 $ 342.0                
Investment, Identifier [Axis]: LeanTaaS Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 54.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 54.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 54.0                  
Investment, Identifier [Axis]: LeanTaas Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.08%     12.08% 12.08% 12.08% 12.08%      
Total first lien senior secured loans [3],[4] $ 31.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 31.2                  
Investment, Identifier [Axis]: Len the Plumber, LLC, LTP Neffsville, LLC, LTP of NJ, LLC, and LTP LSI, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 9.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   9.0                
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.5                  
Less: funded commitments (0.7)                  
Total unfunded commitments 4.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.8                  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.54%     12.54% 12.54% 12.54% 12.54%      
Total first lien senior secured loans [3],[4] $ 16.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 15.8                  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.54%     12.54% 12.54% 12.54% 12.54%      
Total first lien senior secured loans [3],[4] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.7                  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.0                  
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3 2.3                
Less: funded commitments 0.0 (1.8)                
Total unfunded commitments 2.3 0.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.3 $ 0.5                
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.40% [2] 5.75% [1]   9.40% [2] 9.40% [2] 9.40% [2] 9.40% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 1.0 [4] $ 1.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.9 [4] $ 1.0 [6],[7]                
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   4.14%           4.14% 4.14% 4.14%
Total first lien senior secured loans [7]   $ 1.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   1.8                
Investment, Identifier [Axis]: Lido Advisors, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.8 0.8                
Less: funded commitments (0.4) 0.0                
Total unfunded commitments 0.4 0.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.4 $ 0.8                
Investment, Identifier [Axis]: Lido Advisors, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.05%     9.05% 9.05% 9.05% 9.05%      
Total first lien senior secured loans [3] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 0.4                  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 0.0                  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.15%     11.15% 11.15% 11.15% 11.15%      
Total first lien senior secured loans [3],[4],[5] $ 18.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 18.2                  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 3.2                  
Investment, Identifier [Axis]: Lifescan Global Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.74%     9.74% 9.74% 9.74% 9.74%      
Total first lien senior secured loans [4] $ 14.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 10.3                  
Investment, Identifier [Axis]: Lifescan Global Corporation, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.24%     13.24% 13.24% 13.24% 13.24%      
Total first lien senior secured loans [4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.2                  
Investment, Identifier [Axis]: Lower ACS, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 25.9                  
Less: funded commitments 0.0                  
Total unfunded commitments 25.9                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 25.9                  
Investment, Identifier [Axis]: Lower ACS, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.13%     10.13% 10.13% 10.13% 10.13%      
Total first lien senior secured loans [3],[4] $ 5.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 5.4                  
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.23% [2] 4.50% [1]   8.23% [2] 8.23% [2] 8.23% [2] 8.23% [2] 4.50% [1] 4.50% [1] 4.50% [1]
Total first lien senior secured loans $ 14.3 [3],[4] $ 11.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.5 [3],[4] $ 10.9 [6],[7]                
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.73% [2] 10.00% [1]   13.73% [2] 13.73% [2] 13.73% [2] 13.73% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 68.4 [3],[4] $ 68.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 63.6 [3],[4] $ 61.6 [6],[7]                
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.73% [2] 10.00% [1]   13.73% [2] 13.73% [2] 13.73% [2] 13.73% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 23.6 [3],[4] $ 23.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.0 [3],[4] 21.3 [6],[7]                
Investment, Identifier [Axis]: MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 0.6                
Investment, Identifier [Axis]: MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 110.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   110.2                
Investment, Identifier [Axis]: ME Equity LLC, Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.5 [4] 3.1 [7]                
Investment, Identifier [Axis]: MMIT Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   4.6                
Less: funded commitments   (0.6)                
Total unfunded commitments   4.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 4.0                
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7]   $ 18.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 18.0                
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7]   $ 13.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 13.6                
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7]   $ 0.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.6                
Investment, Identifier [Axis]: MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   15.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   13.9                
Investment, Identifier [Axis]: MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   1.9                
Investment, Identifier [Axis]: MRI Software LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.6 10.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 10.6 10.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 10.6 $ 10.2                
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 51.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 51.5                
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3] $ 47.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 45.6                  
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.50% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 17.4 [3],[4] $ 4.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 16.8 [3],[4] $ 4.5 [6],[7]                
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.88%           5.88% 5.88% 5.88%
Total first lien senior secured loans [6]   $ 123.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 123.8                
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.88%           5.88% 5.88% 5.88%
Total first lien senior secured loans [6],[7]   $ 19.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 19.1                
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., Preferred units                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   13.75%           13.75% 13.75% 13.75%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 75.0                
Investment, Identifier [Axis]: MailSouth, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[9] 8.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[9] 3.9                  
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.0 2.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.0 2.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 2.0 2.0                
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.6 [4] 4.0 [7]                
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 $ 0.0 [7]                
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.98% [2] 8.25% [1]   11.98% [2] 11.98% [2] 11.98% [2] 11.98% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 30.3 [3],[4] $ 42.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 30.3 [3],[4] 42.2 [6],[7]                
Investment, Identifier [Axis]: Management Consulting & Research LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 4.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.0                  
Investment, Identifier [Axis]: Management Consulting & Research LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.94%     10.94% 10.94% 10.94% 10.94%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.0                  
Investment, Identifier [Axis]: Manna Pro Products, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.0 7.0                
Less: funded commitments (5.1) (1.9)                
Total unfunded commitments 1.9 5.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.9 $ 5.1                
Investment, Identifier [Axis]: Manna Pro Products, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.14% [2] 7.00% [1]   10.14% [2] 10.14% [2] 10.14% [2] 10.14% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 5.1 [3],[4] $ 1.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.7 [3],[4] 1.9 [6],[7]                
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 10.2 [4] $ 9.3 [7]                
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.98% [2] 6.25% [1]   10.98% [2] 10.98% [2] 10.98% [2] 10.98% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 6.5 [3],[4] $ 18.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.5 [3],[4] $ 18.5 [6],[7]                
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.91% [2] 6.25% [1]   10.91% [2] 10.91% [2] 10.91% [2] 10.91% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 2.6 [3],[4] $ 2.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.5 [3],[4] $ 2.1 [6]                
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.94% [2] 6.00% [1]   10.94% [2] 10.94% [2] 10.94% [2] 10.94% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 2.1 [3],[4] $ 6.6 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.1 [3],[4] $ 6.5 [6]                
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.98% [2] 6.25% [1]   10.98% [2] 10.98% [2] 10.98% [2] 10.98% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 0.3 [3],[4] $ 35.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.3 [3],[4] $ 34.6 [6],[7]                
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.9                  
Less: funded commitments 0.0                  
Total unfunded commitments 6.9                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 6.9                  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 34.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   34.4                
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.80%     10.80% 10.80% 10.80% 10.80%      
Total first lien senior secured loans [3],[4] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.7                  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.04%     11.04% 11.04% 11.04% 11.04%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.2                  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., Limited partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.6 [4] 2.4 [7]                
Investment, Identifier [Axis]: Maverick Acquisition, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   17.2                
Less: funded commitments   0.0                
Total unfunded commitments   17.2                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 17.2                
Investment, Identifier [Axis]: Maverick Acquisition, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.98% [2] 7.00% [1]   10.98% [2] 10.98% [2] 10.98% [2] 10.98% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 27.6 [3],[4] $ 57.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 25.4 [3],[4] 57.3 [6],[7]                
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, Class A-1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 26.8                
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   3.85%           3.85% 3.85% 3.85%
Total first lien senior secured loans [7],[14]   $ 15.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[14]   15.3                
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   71.8                
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 32.9 32.9                
Less: funded commitments (7.3) (23.4)                
Total unfunded commitments 25.6 9.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 25.6 9.5                
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, Class A-1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 33.1                  
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 0.0                  
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 76.6                  
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.5 4.5                
Less: funded commitments (1.9) 0.0                
Total unfunded commitments 2.6 4.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.6 $ 4.5                
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.43% [2] 6.75% [1]   9.43% [2] 9.43% [2] 9.43% [2] 9.43% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 84.5 [3],[4],[20] $ 84.5 [6],[21]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 84.5 [3],[4],[20] $ 84.5 [6],[21]                
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.14% [2] 6.75% [1]   10.14% [2] 10.14% [2] 10.14% [2] 10.14% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 5.5 [3],[4] $ 5.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.5 [3],[4] $ 5.5 [6]                
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan, First Out Tranche                    
Schedule of Investments [Line Items]                    
Coupon 2.00% 2.00%   2.00% 2.00% 2.00% 2.00% 2.00% 2.00% 2.00%
Total first lien senior secured loans $ 40.9 $ 46.9                
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.12%     10.12% 10.12% 10.12% 10.12%      
Total first lien senior secured loans [3],[4] $ 1.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.9                  
Investment, Identifier [Axis]: McLaren Group Limited, Senior preference shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 26.2 [4],[5] 27.1 [7],[8]                
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   5.1                
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase ordinary shares 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   1.4                
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase up to 13,776 units of ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 0.8                  
Investment, Identifier [Axis]: McLaren Group Limited, Warrant to purchase up to 49,181 units of ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 2.8                  
Investment, Identifier [Axis]: Medline Borrower, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.9 6.9                
Less: funded commitments (0.2) 0.0                
Total unfunded commitments 6.7 6.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 6.7 6.9                
Investment, Identifier [Axis]: Medline Borrower, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 0.0                  
Investment, Identifier [Axis]: Miami Beckham United LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 94.7 87.1                
Investment, Identifier [Axis]: Micromeritics Instrument Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.1 4.1                
Less: funded commitments 0.0 (0.1)                
Total unfunded commitments 4.1 4.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.1 $ 4.0                
Investment, Identifier [Axis]: Micromeritics Instrument Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.65% [2] 6.00% [1]   9.65% [2] 9.65% [2] 9.65% [2] 9.65% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 20.7 [3],[4] $ 32.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 20.7 [3],[4] $ 32.0 [6]                
Investment, Identifier [Axis]: Micromeritics Instrument Corp., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.6 [4] 4.5 [7]                
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 15.58%     15.58% 15.58% 15.58% 15.58%      
Total first lien senior secured loans $ 159.3 [3] 153.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 159.3 [3] 150.4 [6]                
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.6 [4] 2.0 [7]                
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co- Invest SCSp                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 15.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 15.1                  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.17%     10.17% 10.17% 10.17% 10.17%      
Total first lien senior secured loans [3],[4],[5] $ 102.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 99.1                  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.18%     9.18% 9.18% 9.18% 9.18%      
Total first lien senior secured loans [3],[4],[5] $ 34.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 33.7                  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 39.4                  
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 31.3 31.3                
Less: funded commitments (4.0) 0.0                
Total unfunded commitments 27.3 31.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 27.3 $ 31.3                
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 6.25% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 32.5 [3],[4] $ 72.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 30.9 [3],[4] 72.0 [6],[7]                
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.88%     9.88% 9.88% 9.88% 9.88%      
Total first lien senior secured loans [3],[4] $ 4.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 3.8                  
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.8 [4] 9.6 [7]                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands)                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   10.9                
Less: funded commitments   (5.0)                
Total unfunded commitments   5.9                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   5.9                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 7.2                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.00%           5.00% 5.00% 5.00%
Total first lien senior secured loans [6]   $ 9.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 9.2                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.00%           5.00% 5.00% 5.00%
Total first lien senior secured loans [6]   $ 4.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 4.7                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6]   $ 5.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 5.0                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.25%           10.25% 10.25% 10.25%
Total first lien senior secured loans [6]   $ 106.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 106.6                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.25%           10.25% 10.25% 10.25%
Total first lien senior secured loans [6],[7]   $ 13.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 13.9                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.25%           10.25% 10.25% 10.25%
Total first lien senior secured loans [6],[7]   $ 17.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 17.9                
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.00%           9.00% 9.00% 9.00%
Total first lien senior secured loans [6],[7]   $ 48.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 48.9                
Investment, Identifier [Axis]: Mitchell International, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 7.00% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 98.1 [3],[4],[11] $ 91.2 [6],[7],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 81.0 [3],[4],[11] 91.6 [6],[7],[12]                
Investment, Identifier [Axis]: Monica Holdco (US) Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.6 3.6                
Less: funded commitments (2.4) 0.0                
Total unfunded commitments 1.2 3.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.2 $ 3.6                
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.25% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 2.6 [3],[4] $ 2.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.5 [3],[4] $ 2.6 [6],[7]                
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.99% [2] 0.00% [1]   10.99% [2] 10.99% [2] 10.99% [2] 10.99% [2] 0.00% [1] 0.00% [1] 0.00% [1]
Total first lien senior secured loans [3],[4] $ 2.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.3 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: Monolith Brands Group, Inc., Series A-1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 15.5                  
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   15.2                
Less: funded commitments   0.0                
Total unfunded commitments   15.2                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 15.2                
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6]   $ 79.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   78.2                
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 42.9 [3],[4] $ 96.9                
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 19.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 19.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 19.0                  
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.5                  
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.32%     10.32% 10.32% 10.32% 10.32%      
Total first lien senior secured loans [3],[4] $ 25.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 24.6                  
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 10.18% [2] 7.45% [1]   10.18% [2] 10.18% [2] 10.18% [2] 10.18% [2] 7.45% [1] 7.45% [1] 7.45% [1]
Total first lien senior secured loans $ 4.7 [3],[4],[5] $ 0.2 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.6 [3],[4],[5] $ 0.2 [6],[7],[8]                
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7],[8]   $ 2.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 2.7                
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[8]   $ 2.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[8]   $ 2.1                
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 27.5                  
Less: funded commitments 0.0                  
Total unfunded commitments 27.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 27.5                  
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.08% [2] 11.00% [1]   13.08% [2] 13.08% [2] 13.08% [2] 13.08% [2] 11.00% [1] 11.00% [1] 11.00% [1]
Total first lien senior secured loans $ 75.5 [3],[4] $ 2.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 75.5 [3],[4] $ 2.7 [6],[7]                
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.00%           10.00% 10.00% 10.00%
Total first lien senior secured loans [6],[7]   $ 38.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 38.3                
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, Preferred units                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 45.9 $ 27.4                
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.0 3.0                
Less: funded commitments (0.6) (0.6)                
Total unfunded commitments 2.4 2.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.4 $ 2.4                
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.50%           7.50% 7.50% 7.50%
Total first lien senior secured loans [6],[7]   $ 2.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 2.4                
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.23%     11.23% 11.23% 11.23% 11.23%      
Total first lien senior secured loans [3],[4] $ 6.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 6.3                  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 7.00% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 2.3 [3],[4] $ 6.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.3 [3],[4] $ 6.4 [6],[7]                
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.23%     11.23% 11.23% 11.23% 11.23%      
Total first lien senior secured loans [3],[4] $ 1.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 1.3                  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 8.75% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 0.6 [3],[4] $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.6 [3],[4] 0.6 [6],[7]                
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 28.1 28.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 28.1 28.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 28.1 28.3                
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, Class A-2 common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 18.5 [4] $ 18.5 [7]                
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 6.75% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 97.0 [3],[4] $ 12.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 95.1 [3],[4] $ 12.0 [6],[7]                
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 6.75% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 176.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3],[4] 174.7 [6],[7]                
Investment, Identifier [Axis]: NECCO Holdings, Inc. and New England Confectionery Company, Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   1.9                
Redemptions (cost)   14.5                
Sales (cost)   0.0                
Interest income   0.0                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   (12.4)                
Net unrealized gains (losses):   8.0                
Fair Value   0.0                
Investment, Identifier [Axis]: NECCO Realty Investments LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   0.0                
Sales (cost)   0.0                
Interest income   0.0                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   0.0                
Net unrealized gains (losses):   0.0                
Fair Value   $ 0.0                
Investment, Identifier [Axis]: NM GRC Holdco, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 45.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   45.4                
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.7 9.1                
Less: funded commitments 0.0 (6.2)                
Total unfunded commitments 12.7 2.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 12.7 $ 2.9                
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.38% [2] 6.00% [1]   9.38% [2] 9.38% [2] 9.38% [2] 9.38% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 32.0 [3],[4] $ 24.2 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 30.7 [3],[4] $ 23.9 [6]                
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.38% [2] 6.00% [1]   9.38% [2] 9.38% [2] 9.38% [2] 9.38% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 4.7 [3],[4] $ 8.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.5 [3],[4] $ 8.1 [6]                
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[7]   $ 6.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   6.1                
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.5 12.5                
Less: funded commitments (3.1) (1.1)                
Total unfunded commitments 9.4 11.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 9.4 $ 11.4                
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.13% [2] 0.00% [1]   8.13% [2] 8.13% [2] 8.13% [2] 8.13% [2] 0.00% [1] 0.00% [1] 0.00% [1]
Total first lien senior secured loans [4],[13] $ 2.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.1 [4],[13] $ 0.0 [16]                
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP, Partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.0 [4] 2.8 [7]                
Investment, Identifier [Axis]: NSM Insurance Group, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.0                
Less: funded commitments   (0.7)                
Total unfunded commitments   5.3                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 5.3                
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6]   $ 12.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 12.8                
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7],[14]   $ 0.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   0.5                
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.6 [4] 4.1 [7]                
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [4] $ 0.1 [7]                
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   11.00%           11.00% 11.00% 11.00%
Total first lien senior secured loans [6],[7]   $ 72.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   72.8                
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Senior preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.3 [4] 0.3 [7]                
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Common stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Senior preferred series A-1 shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 46.5                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series B preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series B preferred stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National College of Business and Technology Inc. & Leeds IV Advisors, Inc., Series C preferred stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.0 9.0                
Less: funded commitments (1.2) 0.0                
Total unfunded commitments 7.8 9.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 7.8 9.0                
Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.12%     7.12% 7.12% 7.12% 7.12%      
Total first lien senior secured loans [4] $ 1.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.2                  
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 6.6                
Redemptions (cost) 131.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.4 8.9                
Capital structuring service fees 0.0 0.1                
Dividend income 0.1 0.4                
Other income 0.0 0.1                
Net realized gains (losses): 19.0 0.0                
Net unrealized gains (losses): (9.4) 12.6                
Fair Value 0.0 143.7                
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   11.8                
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   54.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   54.4                
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7]   15.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 15.2                
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.00%           8.00% 8.00% 8.00%
Total first lien senior secured loans [7]   $ 46.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   46.5                
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, Series A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   15.8                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.6 0.6                
Less: funded commitments (0.1) (0.2)                
Total unfunded commitments 0.5 0.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.5 0.4                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 7.5                  
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   $ 7.1                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.66% [2] 5.25% [1]   8.66% [2] 8.66% [2] 8.66% [2] 8.66% [2] 5.25% [1] 5.25% [1] 5.25% [1]
Total first lien senior secured loans $ 14.9 [3],[4],[5] $ 15.0 [6],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.6 [3],[4],[5] $ 15.0 [6],[8]                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 6.11% [2] 4.50% [1]   6.11% [2] 6.11% [2] 6.11% [2] 6.11% [2] 4.50% [1] 4.50% [1] 4.50% [1]
Total first lien senior secured loans $ 4.8 [4],[5] $ 5.2 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.7 [4],[5] $ 5.2 [7],[8]                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 6.11% [2] 4.50% [1]   6.11% [2] 6.11% [2] 6.11% [2] 6.11% [2] 4.50% [1] 4.50% [1] 4.50% [1]
Total first lien senior secured loans $ 1.5 [4],[5] $ 24.4 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.5 [4],[5] $ 24.4 [7],[8]                
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.66% [2] 5.25% [1]   8.66% [2] 8.66% [2] 8.66% [2] 8.66% [2] 5.25% [1] 5.25% [1] 5.25% [1]
Total first lien senior secured loans $ 0.1 [3],[4],[5] $ 0.2 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4],[5] 0.2 [6],[7],[8]                
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 12.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 12.6                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.82%     8.82% 8.82% 8.82% 8.82%      
Total first lien senior secured loans [3],[4] $ 99.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 88.4                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.57%     8.57% 8.57% 8.57% 8.57%      
Total first lien senior secured loans [3],[4] $ 74.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 65.9                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 6.25%     6.25% 6.25% 6.25% 6.25%      
Total first lien senior secured loans [4] $ 16.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 14.4                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured notes                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 929.00%     929.00% 929.00% 929.00% 929.00%      
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] $ 49.8                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 4.0                  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.57%     13.57% 13.57% 13.57% 13.57%      
Total first lien senior secured loans [3],[4] $ 221.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 214.7                  
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 119.1 119.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 119.1 119.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 119.1 119.1                
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1, Limited partner interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 10.2 [4] $ 9.7 [7]                
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.26% [2] 9.00% [1]   13.26% [2] 13.26% [2] 13.26% [2] 13.26% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 119.1 [3],[4] $ 119.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 117.9 [3],[4] 117.9 [6],[7]                
Investment, Identifier [Axis]: New Era Cap, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.94%     9.94% 9.94% 9.94% 9.94%      
Total first lien senior secured loans [3],[4] $ 27.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 27.8                  
Investment, Identifier [Axis]: Noble Aerospace, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.6                  
Less: funded commitments (2.2)                  
Total unfunded commitments 3.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 3.4                  
Investment, Identifier [Axis]: Noble Aerospace, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 0.0                  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.1 23.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 8.1 23.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.1 23.9                
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.9 [4] $ 1.2 [7]                
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 20.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   20.1                
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4] $ 20.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 20.0                  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.08%     10.08% 10.08% 10.08% 10.08%      
Total first lien senior secured loans [3],[4] $ 2.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 2.9                  
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.0                
Less: funded commitments   0.0                
Total unfunded commitments   6.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   6.0                
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 38.8 [4] $ 32.8 [7]                
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.18% [2] 6.50% [1]   10.18% [2] 10.18% [2] 10.18% [2] 10.18% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 47.5 [3],[4] $ 48.0 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 47.5 [3],[4] $ 48.0 [6]                
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.18% [2] 6.50% [1]   10.18% [2] 10.18% [2] 10.18% [2] 10.18% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 2.6 [3],[4] $ 2.6 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.6 [3],[4] $ 2.6 [6]                
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.18% [2] 6.50% [1]   10.18% [2] 10.18% [2] 10.18% [2] 10.18% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] 0.1 [6],[7]                
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.18%     10.18% 10.18% 10.18% 10.18%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC, Fairway Lawns, LLC and Command Pest Control, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 22.5                  
Less: funded commitments 0.0                  
Total unfunded commitments 22.5                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 22.5                  
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC, Fairway Lawns, LLC and Command Pest Control, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.05%     11.05% 11.05% 11.05% 11.05%      
Total first lien senior secured loans [3],[4] $ 6.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 6.2                  
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.5 6.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.5 6.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.5 6.7                
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.8 $ 4.1                
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.19% [2] 7.00% [1]   11.19% [2] 11.19% [2] 11.19% [2] 11.19% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 25.3 [3],[4] $ 22.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 23.5 [3],[4] 22.1 [6],[7]                
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.1 10.0                
Less: funded commitments (0.8) 0.0                
Total unfunded commitments 4.3 10.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.3 $ 10.0                
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.90% [2] 6.50% [1]   9.90% [2] 9.90% [2] 9.90% [2] 9.90% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 6.9 [3],[4] $ 11.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.7 [3],[4] 11.0 [6],[7]                
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.92%     9.92% 9.92% 9.92% 9.92%      
Total first lien senior secured loans [3],[4] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.8                  
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.2 [4] 6.3 [7]                
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., Class C units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 $ 0.0 [7]                
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.17% [2] 6.75% [1]   11.17% [2] 11.17% [2] 11.17% [2] 11.17% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 23.5 [3],[4] $ 23.9 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 23.5 [3],[4] 23.9 [6]                
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.17%     11.17% 11.17% 11.17% 11.17%      
Total first lien senior secured loans [3],[4] $ 6.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 6.3                  
Investment, Identifier [Axis]: NueHealth Performance, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   6.2                
Less: funded commitments   (3.3)                
Total unfunded commitments   2.9                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 2.9                
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.25%           8.25% 8.25% 8.25%
Total first lien senior secured loans [6]   $ 12.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 12.4                
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.25%           8.25% 8.25% 8.25%
Total first lien senior secured loans [6],[7]   $ 3.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 3.0                
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.25%           8.25% 8.25% 8.25%
Total first lien senior secured loans [6],[7]   $ 3.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 3.3                
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.02% [2] 6.50% [1]   10.02% [2] 10.02% [2] 10.02% [2] 10.02% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 25.9 [3],[4] $ 26.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 25.9 [3],[4] $ 26.1 [6]                
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.02% [2] 6.50% [1]   10.02% [2] 10.02% [2] 10.02% [2] 10.02% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 15.2 [3],[4] $ 15.4 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.2 [3],[4] 15.4 [6]                
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.02%     10.02% 10.02% 10.02% 10.02%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: OTG Management, LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 13.1 [4] 15.8                
Investment, Identifier [Axis]: OTG Management, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: OTG Management, LLC, Warrant to purchase common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 0.0                
Investment, Identifier [Axis]: OTG Management, LLC, Warrant to purchase up to 7.73% of common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0                  
Investment, Identifier [Axis]: OUTFRONT Media Inc., Series A convertible perpetual preferred stock                    
Schedule of Investments [Line Items]                    
Coupon | Rate 700.00% [2] 7.00% [1]   700.00% [2] 700.00% [2] 700.00% [2] 700.00% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 33.6 [4],[5] $ 44.4 [7],[8]                
Investment, Identifier [Axis]: Offen, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 5.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 5.6                  
Investment, Identifier [Axis]: Offen, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.51%     8.51% 8.51% 8.51% 8.51%      
Total first lien senior secured loans [4] $ 1.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 1.4                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   11.0                
Less: funded commitments   (10.3)                
Total unfunded commitments   0.7                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   0.7                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 0.0                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 42.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 34.5                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 0.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 0.8                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 10.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 8.3                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7]   $ 0.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.2                
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.3                
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P. and Asclepius Hodlings LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 8.3                  
Redemptions (cost) 0.0                  
Sales (cost) 0.0                  
Interest income 3.2                  
Capital structuring service fees 0.3                  
Dividend income 0.0                  
Other income 0.0                  
Net realized gains (losses): 0.0                  
Net unrealized gains (losses): (11.7)                  
Fair Value 44.7                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions (1.6)                  
Total net adjusted unfunded revolving and delayed draw commitments 0.0                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3] 50.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 38.1                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 8.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 6.6                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: OneDigital Borrower LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.5 7.5                
Less: funded commitments (0.4) 0.0                
Total unfunded commitments 7.1 7.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 7.1 $ 7.5                
Investment, Identifier [Axis]: OneDigital Borrower LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 0.0                  
Investment, Identifier [Axis]: OneDigital Holdings, Achilles Holdco, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Opal Fuels LLC and Opal Fuels Inc., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [5],[11] 22.3                  
Investment, Identifier [Axis]: Opal Fuels LLC and Opal Fuels Inc., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [5] 28.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [5] $ 28.5                  
Investment, Identifier [Axis]: Opal Fuels LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans   52.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 47.8                
Investment, Identifier [Axis]: OpenMarket Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.98% [2] 7.00% [1]   10.98% [2] 10.98% [2] 10.98% [2] 10.98% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 51.6 [3],[4],[5] $ 50.7 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 51.1 [3],[4],[5] $ 50.1 [6],[7],[8]                
Investment, Identifier [Axis]: Osmose Utilities Services, Inc. and Pine Intermediate Holding LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.13% [2] 7.25% [1]   11.13% [2] 11.13% [2] 11.13% [2] 11.13% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 55.3 [3],[4] $ 55.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 51.4 [3],[4] 54.7 [6],[7]                
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment II, L.P.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.1 0.1                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 4.2 0.8                
Fair Value 15.5 11.1                
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment II, L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 15.5 [4],[5] 11.1 [7],[8],[19]                
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment, L.P.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.6                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (0.6) 1.5                
Fair Value 0.7 1.3                
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment, L.P. and PCG-Ares Sidecar Investment II, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 50.0 50.0                
Less: funded commitments (12.5) (12.5)                
Total unfunded commitments 37.5 37.5                
Less: commitments substantially at discretion of the Company 37.5 37.5                
Total net adjusted unfunded revolving and delayed draw commitments 0.0 0.0                
Investment, Identifier [Axis]: PCG-Ares Sidecar Investment, L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.7 [5] 1.3 [8],[19]                
Investment, Identifier [Axis]: PDDS HoldCo, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.1                  
Investment, Identifier [Axis]: PDDS Holdco, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.30%     12.30% 12.30% 12.30% 12.30%      
Total first lien senior secured loans [3],[4] $ 9.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 9.2                  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.6 7.6                
Less: funded commitments (6.1) 0.0                
Total unfunded commitments 1.5 7.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 1.5 7.6                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.7 [4] $ 2.9 [7]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.73% [2] 5.50% [1]   8.73% [2] 8.73% [2] 8.73% [2] 8.73% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 52.9 [3],[4] $ 53.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 51.9 [3],[4] $ 53.5 [6]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.82%     8.82% 8.82% 8.82% 8.82%      
Total first lien senior secured loans [3],[4] $ 6.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 6.0                  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.50%           9.50% 9.50% 9.50%
Total first lien senior secured loans [6],[7]   $ 7.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 7.2                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.18%     13.18% 13.18% 13.18% 13.18%      
Total first lien senior secured loans [3],[4] $ 70.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 68.7                  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.18% [2] 9.50% [1]   13.18% [2] 13.18% [2] 13.18% [2] 13.18% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 8.7 [3],[4] $ 70.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.6 [3],[4] $ 70.1 [6],[7]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.18% [2] 9.50% [1]   13.18% [2] 13.18% [2] 13.18% [2] 13.18% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 8.3 [3],[4] $ 8.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.1 [3],[4] $ 8.3 [6],[7]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.18% [2] 9.50% [1]   13.18% [2] 13.18% [2] 13.18% [2] 13.18% [2] 9.50% [1] 9.50% [1] 9.50% [1]
Total first lien senior secured loans $ 7.2 [3],[4] $ 8.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 7.1 [3],[4] 8.7 [6],[7]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 21.2 [4] 19.7 [7]                
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), Common unit                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 7.4                
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 14.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 14.9                
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 2.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   2.8                
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, Common unit                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 8.3                  
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 14.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 14.9                  
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.73%     10.73% 10.73% 10.73% 10.73%      
Total first lien senior secured loans [3],[4] $ 4.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 4.5                  
Investment, Identifier [Axis]: PS Operating Company LLC and PS Op Holdings LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 6.3 3.9                
Redemptions (cost) 4.6 1.2                
Sales (cost) 0.0 0.0                
Interest income 1.5 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 1.0 0.0                
Fair Value 27.7 25.1                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.9 5.9                
Less: funded commitments (4.5) (2.8)                
Total unfunded commitments 1.4 3.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 1.4 3.1                
Investment, Identifier [Axis]: Padres L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   64.2                
Less: funded commitments   0.0                
Total unfunded commitments   64.2                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 64.2                
Investment, Identifier [Axis]: Padres L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[7]   $ 92.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   92.8                
Investment, Identifier [Axis]: Panda Temple Power, LLC and T1 Power Holdings LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   19.6                
Sales (cost)   0.0                
Interest income   0.2                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   9.8                
Net unrealized gains (losses):   0.9                
Fair Value   0.0                
Investment, Identifier [Axis]: Partnership Capital Growth Investors III, L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.9 [4],[5],[11] 3.6 [8],[12]                
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.9 1.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 1.9 1.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 1.9 1.9                
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, Class R common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.5 [4] $ 7.9 [7]                
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.13% [2] 8.75% [1]   12.13% [2] 12.13% [2] 12.13% [2] 12.13% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 76.3 [3],[4] $ 76.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 65.6 [3],[4] 76.3 [6],[7]                
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.2 6.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.2 6.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.2 $ 6.7                
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.87% [2] 6.25% [1]   8.87% [2] 8.87% [2] 8.87% [2] 8.87% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 16.0 [3],[4] $ 11.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 15.5 [3],[4] 11.5 [6],[7]                
Investment, Identifier [Axis]: PayNearMe, Inc., Warrant to purchase shares of Series E preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: PayNearMe, Inc., Warrant to purchase up to 195,726 shares of Series E preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Paya, Inc and GTCR-Ultra Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.5 4.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.5 4.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 4.5 4.5                
Investment, Identifier [Axis]: Paya, Inc and GTCR-Ultra Holdings LLC, Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.6 [4] 2.1 [7]                
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 20.6 45.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 20.6 45.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 20.6 45.9                
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.3 $ 12.3                
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.25%           6.25% 6.25% 6.25%
Total first lien senior secured loans [6],[7]   $ 0.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.2                
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 13.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 13.7                  
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.75% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 29.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3],[4] 29.9 [6],[7]                
Investment, Identifier [Axis]: Pelican Products, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3 2.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.3 2.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.3 $ 2.3                
Investment, Identifier [Axis]: Pelican Products, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.20% [2] 8.25% [1]   12.20% [2] 12.20% [2] 12.20% [2] 12.20% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 60.0 [3],[4] $ 60.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 55.8 [3],[4] 59.4 [6],[7]                
Investment, Identifier [Axis]: People Corporation                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 20.6 29.4                
Less: funded commitments (1.3) (2.9)                
Total unfunded commitments 19.3 26.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 19.3 $ 26.5                
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.91% [2] 6.25% [1]   10.91% [2] 10.91% [2] 10.91% [2] 10.91% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 40.9 [3],[4],[5] $ 1.4 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 40.5 [3],[4],[5] $ 1.4 [6],[7],[8]                
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.91% [2] 7.25% [1]   10.91% [2] 10.91% [2] 10.91% [2] 10.91% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 12.8 [3],[4],[5] $ 44.3 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.6 [3],[4],[5] $ 44.3 [6],[7],[8]                
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.17% [2] 7.25% [1]   10.17% [2] 10.17% [2] 10.17% [2] 10.17% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 8.1 [3],[4],[5] $ 13.8 [6],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.8 [3],[4],[5] $ 13.8 [6],[8]                
Investment, Identifier [Axis]: People Corporation, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.99% [2] 7.25% [1]   10.99% [2] 10.99% [2] 10.99% [2] 10.99% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 1.3 [3],[4],[5] $ 2.9 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.3 [3],[4],[5] 2.9 [6],[7],[8]                
Investment, Identifier [Axis]: Perforce Software, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.5 0.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.5 0.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.5 0.5                
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.38%     9.38% 9.38% 9.38% 9.38%      
Total first lien senior secured loans [3],[4] $ 5.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 5.0                  
Investment, Identifier [Axis]: Petroleum Service Group LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 17.5 16.9                
Less: funded commitments (4.4) (3.8)                
Total unfunded commitments 13.1 13.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 13.1 $ 13.1                
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 7.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 34.5 [3],[4] $ 8.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 34.5 [3],[4] $ 8.1 [6],[7]                
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.72% [2] 1.00% [1]   10.72% [2] 10.72% [2] 10.72% [2] 10.72% [2] 1.00% [1] 1.00% [1] 1.00% [1]
Total first lien senior secured loans $ 11.6 [3],[4] $ 0.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.6 [3],[4] $ 0.2 [6],[7]                
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 34.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 34.2                
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 0.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.7                
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.71% [2] 7.00% [1]   9.71% [2] 9.71% [2] 9.71% [2] 9.71% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 2.5 [3],[4],[13] $ 2.2 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.5 [3],[4],[13] $ 2.2 [6],[7],[14]                
Investment, Identifier [Axis]: Petrus Buyer, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.7                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.7                  
Investment, Identifier [Axis]: Petrus Buyer, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.70%     10.70% 10.70% 10.70% 10.70%      
Total first lien senior secured loans $ 5.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.9                  
Investment, Identifier [Axis]: Petvisor Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 37.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 37.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 37.6                  
Investment, Identifier [Axis]: Petvisor Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.21%     10.21% 10.21% 10.21% 10.21%      
Total first lien senior secured loans [3],[4] $ 21.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 21.5                  
Investment, Identifier [Axis]: PhyMED Management LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   15.00%           15.00% 15.00% 15.00%
Total first lien senior secured loans [6],[7]   $ 55.7                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   52.4                
Investment, Identifier [Axis]: Ping Identity Holding Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2                  
Investment, Identifier [Axis]: Ping Identity Holding Corp., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.32%     11.32% 11.32% 11.32% 11.32%      
Total first lien senior secured loans [3],[4] $ 11.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 11.0                  
Investment, Identifier [Axis]: Piper Jaffray Merchant Banking Fund I, L.P., Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.5 [5],[11] 1.0 [8],[12]                
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, Co-Invest units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.5 [4] $ 0.9 [7]                
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.41%     8.41% 8.41% 8.41% 8.41%      
Total first lien senior secured loans [3],[4] $ 22.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 20.1                  
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.98% [2] 8.00% [1]   11.98% [2] 11.98% [2] 11.98% [2] 11.98% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 55.0 [3],[4] $ 55.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 48.9 [3],[4] 55.0 [6],[7]                
Investment, Identifier [Axis]: Pluralsight, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.3 0.3                
Less: funded commitments (0.2) 0.0                
Total unfunded commitments 0.1 0.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.1 $ 0.3                
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.83% [2] 9.00% [1]   11.83% [2] 11.83% [2] 11.83% [2] 11.83% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 106.2 [3],[4] $ 117.7 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 104.0 [3],[4] 117.7 [6],[7]                
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.36%     12.36% 12.36% 12.36% 12.36%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Polymer Solutions Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.92%     8.92% 8.92% 8.92% 8.92%      
Total first lien senior secured loans [3],[4] $ 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.0                  
Investment, Identifier [Axis]: Poplicus Incorporated, Warrant to purchase shares of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Poplicus Incorporated, Warrant to purchase up to 2,402,991 shares of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase shares of series D-1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase up to 1,112,022 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: PosiGen, Inc., Warrant to purchase up to 101,555 shares of series D-1 preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Potomac Intermediate Holdings II LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 6.0 68.4                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (42.4) 0.0                
Fair Value 143.2 179.7                
Investment, Identifier [Axis]: Potomac Intermediate Holdings II LLC, Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 143.2 179.7                
Investment, Identifier [Axis]: PracticeTek Purchaser, LLC and GSV PracticeTek Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   8.2                
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   15.5                
Less: funded commitments   0.0                
Total unfunded commitments   15.5                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   15.5                
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 26.5 [4] $ 13.4 [7]                
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.42% [2] 7.00% [1]   10.42% [2] 10.42% [2] 10.42% [2] 10.42% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 11.7 [3],[4],[5] $ 45.8 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 11.4 [3],[4],[5] 45.4 [6],[7],[8]                
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.42%     10.42% 10.42% 10.42% 10.42%      
Total first lien senior secured loans [3],[4],[5] $ 4.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 3.9                  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 19.2                  
Less: funded commitments (6.2)                  
Total unfunded commitments 13.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 13.0                  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.18%     10.18% 10.18% 10.18% 10.18%      
Total first lien senior secured loans [3],[4],[5] $ 14.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 14.7                  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.43%     10.43% 10.43% 10.43% 10.43%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.1                  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.18%     10.18% 10.18% 10.18% 10.18%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.1                  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.18%     10.18% 10.18% 10.18% 10.18%      
Total first lien senior secured loans [3],[4],[5] $ 6.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 6.2                  
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 11.0 11.0                
Less: funded commitments (2.3) 0.0                
Total unfunded commitments 8.7 11.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 8.7 $ 11.0                
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 6.75% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 27.3 [3],[4] $ 27.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 25.6 [3],[4] 27.3 [6],[7]                
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.38%     10.38% 10.38% 10.38% 10.38%      
Total first lien senior secured loans [3],[4] $ 2.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 2.2                  
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.8 [4] 4.1 [7]                
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 36.0 36.0                
Less: funded commitments (0.6) (12.6)                
Total unfunded commitments 35.4 23.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 35.4 23.4                
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.8 [4] $ 17.5 [7]                
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.92% [2] 3.72% [1]   7.92% [2] 7.92% [2] 7.92% [2] 7.92% [2] 3.72% [1] 3.72% [1] 3.72% [1]
Total first lien senior secured loans $ 8.6 [3],[4] $ 8.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 8.1 [3],[4] $ 8.6                
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   3.41%           3.41% 3.41% 3.41%
Total first lien senior secured loans 0.0 [15] $ 12.0 [7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [15] $ 12.0 [7],[14]                
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.67% [2] 7.72% [1]   11.67% [2] 11.67% [2] 11.67% [2] 11.67% [2] 7.72% [1] 7.72% [1] 7.72% [1]
Total first lien senior secured loans $ 67.1 [4] $ 67.1 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 64.4 [4] 67.1 [7]                
Investment, Identifier [Axis]: Prime Buyer, L.L.C.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.9                  
Less: funded commitments (2.7)                  
Total unfunded commitments 13.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 13.2                  
Investment, Identifier [Axis]: Prime Buyer, L.L.C., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.88%     9.88% 9.88% 9.88% 9.88%      
Total first lien senior secured loans [3],[4] $ 2.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 2.6                  
Investment, Identifier [Axis]: Primrose Holding Corporation                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 4.6 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 28.9 0.0                
Net unrealized gains (losses): (22.4) 12.9                
Fair Value $ 0.0 27.0                
Investment, Identifier [Axis]: Primrose Holding Corporation, Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 27.0                
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.7 [3],[4],[5] $ 35.8 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.7 [3],[4],[5] 35.8 [6],[7],[8]                
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Senior preferred stock                    
Schedule of Investments [Line Items]                    
Coupon [2] 16.73%     16.73% 16.73% 16.73% 16.73%      
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 73.2 [4],[5] 68.3 [6],[7],[8]                
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8]   3.4                
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., Warrant to purchase up to 527,226 units of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 2.8                  
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.3 29.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.3 29.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.3 29.7                
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.4 [4] $ 7.9 [7]                
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.47% [2] 6.25% [1]   10.47% [2] 10.47% [2] 10.47% [2] 10.47% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 65.0 [3],[4] $ 93.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 63.1 [3],[4] 92.8 [6],[7]                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 2.5 11.5                
Redemptions (cost) 0.3 0.1                
Sales (cost) 0.0 0.0                
Interest income 7.0 4.8                
Capital structuring service fees 0.1 0.3                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.1                
Net unrealized gains (losses): 33.6 (4.3)                
Fair Value 97.3 56.3                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   2.5                
Less: funded commitments   0.0                
Total unfunded commitments   2.5                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   2.5                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 34.3 [4] $ 0.6 [7]                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.00%           6.00% 6.00% 6.00%
Total first lien senior secured loans [6],[7]   $ 15.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   15.0                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 12.85%     12.85% 12.85% 12.85% 12.85%      
Total first lien senior secured loans [3],[4] $ 39.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 39.1                  
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon [2] 11.85%     11.85% 11.85% 11.85% 11.85%      
Total first lien senior secured loans $ 15.4 [3],[4] 34.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 15.4 [3],[4] $ 34.9 [6],[7]                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon 11.88% [2] 8.50% [1]   11.88% [2] 11.88% [2] 11.88% [2] 11.88% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 7.6 [3],[4] $ 0.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.6 [3],[4] 0.8 [6],[7]                
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon [2] 11.88%     11.88% 11.88% 11.88% 11.88%      
Total first lien senior secured loans $ 0.9 [3],[4] 5.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.9 [3],[4] 5.0 [6],[7]                
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 0.1                  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4] 17.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 17.1                  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 14.00%     14.00% 14.00% 14.00% 14.00%      
Total first lien senior secured loans [4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.1                  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Series E preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.6                  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Warrant to purchase up to 3,280,444 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.8                  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Warrant to purchase up to 57,322 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 0.2                  
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 13.3 15.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 13.3 15.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 13.3 $ 15.0                
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 5.5 [3],[4] $ 3.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.4 [3],[4] 3.9 [6],[7]                
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P., Limited partnership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.5 [4] 1.6 [7]                
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 14.4 [4] 16.8 [7]                
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., Class B common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [4] 0.2 [7]                
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.39%     8.39% 8.39% 8.39% 8.39%      
Total first lien senior secured loans [4],[11] $ 2.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] 2.8                  
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.1 1.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 1.1 1.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.1 $ 1.1                
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.99% [2] 6.75% [1]   9.99% [2] 9.99% [2] 9.99% [2] 9.99% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 36.2 [3],[4] $ 36.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 34.7 [3],[4] 35.8 [6],[7]                
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc., Preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 30.2 [4] 28.5 [6],[7]                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.5 43.8                
Less: funded commitments (2.1) (0.9)                
Total unfunded commitments 3.4 42.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.4 42.9                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   1.9                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.3 [4] $ 0.8 [7]                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.25%           9.25% 9.25% 9.25%
Total first lien senior secured loans [6]   $ 44.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 44.1                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.07%     12.07% 12.07% 12.07% 12.07%      
Total first lien senior secured loans [3],[4] $ 43.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 43.6                  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.07% [2] 9.25% [1]   12.07% [2] 12.07% [2] 12.07% [2] 12.07% [2] 9.25% [1] 9.25% [1] 9.25% [1]
Total first lien senior secured loans $ 14.3 [3],[4] $ 12.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.3 [3],[4] $ 12.9 [6],[7]                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.07% [2] 9.25% [1]   12.07% [2] 12.07% [2] 12.07% [2] 12.07% [2] 9.25% [1] 9.25% [1] 9.25% [1]
Total first lien senior secured loans $ 12.8 [3],[4] $ 19.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.8 [3],[4] $ 19.4 [6],[7]                
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.07%     12.07% 12.07% 12.07% 12.07%      
Total first lien senior secured loans [3],[4] $ 4.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 4.9                  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.07% [2] 10.50% [1]   12.07% [2] 12.07% [2] 12.07% [2] 12.07% [2] 10.50% [1] 10.50% [1] 10.50% [1]
Total first lien senior secured loans $ 2.1 [3],[4],[13] $ 0.8 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.1 [3],[4],[13] $ 0.8 [6],[7],[14]                
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp. (dba Wellsky), Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7]   $ 193.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   193.1                
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.88%     10.88% 10.88% 10.88% 10.88%      
Total first lien senior secured loans [3],[4] $ 193.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 181.5                  
Investment, Identifier [Axis]: Proofpoint, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.1 3.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.1 3.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.1 $ 3.1                
Investment, Identifier [Axis]: Proofpoint, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 7.98% [2] 3.75% [1]   7.98% [2] 7.98% [2] 7.98% [2] 7.98% [2] 3.75% [1] 3.75% [1] 3.75% [1]
Total first lien senior secured loans $ 1.0 [3],[4],[11] $ 1.0 [6],[7],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.9 [3],[4],[11] $ 1.0 [6],[7],[12]                
Investment, Identifier [Axis]: Proofpoint, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.98% [2] 6.75% [1]   10.98% [2] 10.98% [2] 10.98% [2] 10.98% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 34.6 [3],[4] $ 34.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 34.6 [3],[4] 34.6 [6],[7]                
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 3.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 3.6                  
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 11.0                  
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.47%     10.47% 10.47% 10.47% 10.47%      
Total first lien senior secured loans [3],[4] $ 1.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.4                  
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.8 9.7                
Less: funded commitments (9.8) (9.7)                
Total unfunded commitments 0.0 0.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 0.0                
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 11.63% [2] 8.00% [1]   11.63% [2] 11.63% [2] 11.63% [2] 11.63% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 16.9 [3],[4] $ 18.2 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 16.9 [3],[4] $ 16.8 [6]                
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon 11.63% [2] 8.00% [1]   11.63% [2] 11.63% [2] 11.63% [2] 11.63% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 6.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 5.8 [6],[7]                
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon 11.60% [2] 8.00% [1]   11.60% [2] 11.60% [2] 11.60% [2] 11.60% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 9.7 [3],[4],[13] $ 9.6 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.7 [3],[4],[13] 8.8 [6],[7],[14]                
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, Preferred membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.9 0.5                
Investment, Identifier [Axis]: QF Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.3 6.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.3 6.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.3 $ 6.0                
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7]   $ 8.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 8.1                
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.02%     11.02% 11.02% 11.02% 11.02%      
Total first lien senior secured loans [3],[4] $ 8.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 8.1                  
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.43% [2] 7.50% [1]   10.43% [2] 10.43% [2] 10.43% [2] 10.43% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 6.8 [3],[4] $ 15.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.8 [3],[4] 15.5 [6],[7]                
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.64%     10.64% 10.64% 10.64% 10.64%      
Total first lien senior secured loans [3],[4] $ 3.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 3.7                  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.8                  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.11%     11.11% 11.11% 11.11% 11.11%      
Total first lien senior secured loans [3],[4] $ 10.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 10.3                  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 9.9                  
Investment, Identifier [Axis]: R2 Acquisition Corp., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [4] 0.5 [7]                
Investment, Identifier [Axis]: RB Holdings InterCo, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.6                  
Less: funded commitments (1.8)                  
Total unfunded commitments 3.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 3.8                  
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.32%     9.32% 9.32% 9.32% 9.32%      
Total first lien senior secured loans [3],[4] $ 11.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 11.2                  
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.28%     9.28% 9.28% 9.28% 9.28%      
Total first lien senior secured loans [3],[4] $ 1.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.7                  
Investment, Identifier [Axis]: RC V Tecmo Investor LLC, Common member units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.9 [4] 19.3 [7]                
Investment, Identifier [Axis]: RD Holdco Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0                  
Redemptions (cost) 0.1                  
Sales (cost) 0.0                  
Interest income 0.0                  
Capital structuring service fees 0.0                  
Dividend income 0.0                  
Other income 0.0                  
Net realized gains (losses): 0.0                  
Net unrealized gains (losses): (10.6)                  
Fair Value 10.3                  
Investment, Identifier [Axis]: RD Holdco Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: RD Holdco Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 24.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 10.2                  
Investment, Identifier [Axis]: RD Holdco Inc., Warrants to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: RE Community Holdings GP, LLC and RE Community Holdings, LP, Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0 [7]                
Investment, Identifier [Axis]: RE Community Holdings GP, LLC and RE Community Holdings, LP, Limited partnership interest 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0 [7]                
Investment, Identifier [Axis]: RF HP SCF Investor, LLC, Membership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 25.9 [4],[5] 19.0 [7],[8]                
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.9                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.9                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 2.9                  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 5.5                  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: RMS HoldCo II, LLC and RMS Group Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   2.9                
Less: funded commitments   0.0                
Total unfunded commitments   2.9                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   2.9                
Investment, Identifier [Axis]: RMS Holdco II, LLC & RMS Group Holdings, Inc., Class A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 4.6                
Investment, Identifier [Axis]: RMS Holdco II, LLC & RMS Group Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 23.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   23.3                
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.6 0.6                
Less: funded commitments 0.0 (0.3)                
Total unfunded commitments 0.6 0.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.6 $ 0.3                
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.79% [2] 6.25% [1]   9.79% [2] 9.79% [2] 9.79% [2] 9.79% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 32.8 [3],[4] $ 33.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 31.8 [3],[4] $ 33.1 [6]                
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.75%           7.75% 7.75% 7.75%
Total first lien senior secured loans [6],[7],[14]   $ 0.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   0.3                
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.9 15.9                
Less: funded commitments (9.8) (5.0)                
Total unfunded commitments 6.1 10.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 6.1 $ 10.9                
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.02% [2] 8.25% [1]   10.02% [2] 10.02% [2] 10.02% [2] 10.02% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 22.5 [3],[4] $ 28.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 22.3 [3],[4] $ 28.5 [6]                
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.09% [2] 8.25% [1]   11.09% [2] 11.09% [2] 11.09% [2] 11.09% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 9.8 [3],[4] $ 5.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.7 [3],[4] 5.0 [6],[7]                
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.8 2.9                
Less: funded commitments (0.7) 0.0                
Total unfunded commitments 2.1 2.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.1 2.9                
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.68%     8.68% 8.68% 8.68% 8.68%      
Total first lien senior secured loans [3],[4],[5] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.4                  
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.08%     10.08% 10.08% 10.08% 10.08%      
Total first lien senior secured loans [3],[4],[5] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 0.4                  
Investment, Identifier [Axis]: Radwell Parent, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 4.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.4                  
Investment, Identifier [Axis]: Radwell Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.33%     11.33% 11.33% 11.33% 11.33%      
Total first lien senior secured loans [3],[4] $ 19.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 18.9                  
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.4 4.4                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.4 4.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 4.4 4.4                
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.9 $ 4.8                
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 7.00% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 8.5 [3],[4],[5] $ 28.5 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.2 [3],[4],[5] $ 28.2 [6],[7],[8]                
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.75% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 49.7 [3],[4] $ 93.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 49.7 [3],[4] $ 93.2 [6],[7]                
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.75% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 8.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 8.8 [6],[7]                
Investment, Identifier [Axis]: RealPage, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.88% [2] 7.25% [1]   10.88% [2] 10.88% [2] 10.88% [2] 10.88% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 84.1 [3],[4] $ 84.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 82.4 [3],[4] 84.1 [6],[7]                
Investment, Identifier [Axis]: Reddy Ice LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.2 0.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.2 0.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2 $ 0.3                
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.24% [2] 7.50% [1]   10.24% [2] 10.24% [2] 10.24% [2] 10.24% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 61.3 [3],[4] $ 61.9 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 60.0 [3],[4] $ 61.9 [6]                
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.24% [2] 7.50% [1]   10.24% [2] 10.24% [2] 10.24% [2] 10.24% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 4.2 [3],[4] $ 4.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.2 [3],[4] $ 4.3 [6],[7]                
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.24% [2] 7.50% [1]   10.24% [2] 10.24% [2] 10.24% [2] 10.24% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 0.9 [3],[4] $ 13.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.9 [3],[4] $ 13.0 [6],[7]                
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.5 4.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.5 4.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.5 $ 4.7                
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.17% [2] 8.00% [1]   11.17% [2] 11.17% [2] 11.17% [2] 11.17% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 0.8 [3],[4] $ 1.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.8 [3],[4] $ 1.0 [6],[7]                
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.17% [2] 8.00% [1]   11.17% [2] 11.17% [2] 11.17% [2] 11.17% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 12.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] 12.5 [6],[7]                
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.17%     11.17% 11.17% 11.17% 11.17%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.2                  
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, Series D units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 33.9 11.6                
Investment, Identifier [Axis]: Reef Lifestyle, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 37.7 32.8                
Less: funded commitments (37.7) (13.2)                
Total unfunded commitments 0.0 19.6                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 19.6                
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 25.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 25.0                
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 12.74%     12.74% 12.74% 12.74% 12.74%      
Total first lien senior secured loans [3],[4] $ 23.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 22.9                  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon 10.15% [2] 8.50% [1]   10.15% [2] 10.15% [2] 10.15% [2] 10.15% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 1.3 [3],[4] $ 1.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.3 [3],[4] $ 1.1 [6]                
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6],[7],[14]   $ 12.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   $ 12.1                
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 1                    
Schedule of Investments [Line Items]                    
Coupon [2] 14.50%     14.50% 14.50% 14.50% 14.50%      
Total first lien senior secured loans [3],[4],[13] $ 35.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] $ 34.4                  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon 14.32% [2] 8.50% [1]   14.32% [2] 14.32% [2] 14.32% [2] 14.32% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 1.0 [3],[4] $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.0 [3],[4] 0.6 [6],[7]                
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase shares of common stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase up to 5,393,194 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Regent Education, Inc., Warrant to purchase up to 987 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 28.0 28.0                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 28.0 28.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 28.0 $ 28.0                
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.38% [2] 6.50% [1]   9.38% [2] 9.38% [2] 9.38% [2] 9.38% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 2.7 [3],[4] $ 37.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.7 [3],[4] 37.5 [6],[7]                
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P., Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.6 [4] 2.6 [7]                
Investment, Identifier [Axis]: Relativity ODA LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.8 3.8                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.8 3.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.8 3.8                
Investment, Identifier [Axis]: Relativity ODA LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 22.5 [3],[4] 59.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.5 [3],[4] 59.8 [6],[7]                
Investment, Identifier [Axis]: Repairify, Inc. and Repairify Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.3 7.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 7.3 7.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 7.3 7.3                
Investment, Identifier [Axis]: Repairify, Inc. and Repairify Holdings, LLC, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.4 [4] 4.8 [7]                
Investment, Identifier [Axis]: Respicardia, Inc., Warrant to purchase shares of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Revalize, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.9                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.9                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.9                  
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.6                  
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.46%     10.46% 10.46% 10.46% 10.46%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.0                  
Investment, Identifier [Axis]: Rialto Management Group, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.3 1.3                
Less: funded commitments (0.2) (0.2)                
Total unfunded commitments 1.1 1.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.1 $ 1.1                
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7],[8]   $ 9.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 9.5                
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.88%     9.88% 9.88% 9.88% 9.88%      
Total first lien senior secured loans [3],[4],[5] $ 0.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 0.3                  
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 4.34% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 4.34% [1] 4.34% [1] 4.34% [1]
Total first lien senior secured loans $ 0.1 [3],[4],[5] $ 0.7 [8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4],[5] $ 0.7 [8]                
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 4.35% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 4.35% [1] 4.35% [1] 4.35% [1]
Total first lien senior secured loans $ 0.1 [3],[4],[5] $ 7.7 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4],[5] $ 7.7 [7],[8]                
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [5],[15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [5],[15] $ 0.0 [8],[16]                
Investment, Identifier [Axis]: Riser Merger Sub, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 2.8                  
Investment, Identifier [Axis]: Riser Merger Sub, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.33%     9.33% 9.33% 9.33% 9.33%      
Total first lien senior secured loans [3],[4] $ 0.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.7                  
Investment, Identifier [Axis]: Riverview Power LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.9                  
Less: funded commitments 0.0                  
Total unfunded commitments 8.9                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 8.9                  
Investment, Identifier [Axis]: Riverview Power LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 13.73% [2] 10.00% [1]   13.73% [2] 13.73% [2] 13.73% [2] 13.73% [2] 10.00% [1] 10.00% [1] 10.00% [1]
Total first lien senior secured loans $ 57.6 [3],[4] $ 54.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 57.6 [3],[4] 54.2 [6],[7]                
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.2 6.2                
Less: funded commitments (1.3) (0.4)                
Total unfunded commitments 4.9 5.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.9 $ 5.8                
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 7.00% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 16.9 [3],[4] $ 17.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 16.1 [3],[4] $ 16.9 [6],[7]                
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 7.00% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 1.3 [3],[4] $ 0.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.2 [3],[4] 0.3 [6],[7]                
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   0.0                
Sales (cost)   0.0                
Interest income   2.4                
Capital structuring service fees   0.0                
Dividend income   0.0                
Other income   0.0                
Net realized gains (losses):   0.0                
Net unrealized gains (losses):   (1.1)                
Fair Value   21.0                
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   0.0                
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [6],[7]   22.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   21.0                
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   0.0                
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC)                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (0.1) (0.3)                
Fair Value 0.0 0.2                
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Class B common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.2                
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Warrant to purchase units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   0.0                
Investment, Identifier [Axis]: S Toys Holdings LLC (fka The Step2 Company, LLC), Warrant to purchase up to 3,157,895 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: SCI PH Parent, Inc., Series B shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.2 [4] 1.2 [7]                
Investment, Identifier [Axis]: SCIH Salt Holdings Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.5 7.5                
Less: funded commitments (2.6) (6.2)                
Total unfunded commitments 4.9 1.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.9 $ 1.3                
Investment, Identifier [Axis]: SCIH Salt Holdings Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.15% [2] 5.00% [1]   8.15% [2] 8.15% [2] 8.15% [2] 8.15% [2] 5.00% [1] 5.00% [1] 5.00% [1]
Total first lien senior secured loans $ 2.3 [3],[4],[13] $ 2.1 [6],[7],[14]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [3],[4],[13] 1.9 [6],[7],[14]                
Investment, Identifier [Axis]: SCM Insurance Services Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.0 4.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.0 4.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 4.0 $ 4.3                
Investment, Identifier [Axis]: SCM Insurance Services Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.16% [2] 6.00% [1]   11.16% [2] 11.16% [2] 11.16% [2] 11.16% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 61.1 [3],[4],[5] $ 20.4 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 61.1 [3],[4],[5] $ 20.4 [6],[7],[8]                
Investment, Identifier [Axis]: SCM Insurance Services Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.00%           10.00% 10.00% 10.00%
Total first lien senior secured loans [6],[7],[8]   $ 60.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[8]   $ 60.0                
Investment, Identifier [Axis]: SE1 Generation, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon 12.25% [2] 10.25% [1]   12.25% [2] 12.25% [2] 12.25% [2] 12.25% [2] 10.25% [1] 10.25% [1] 10.25% [1]
Total first lien senior secured loans $ 57.5 [4] $ 58.8 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 57.5 [4] 57.0 [7]                
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 15.2 10.2                
Less: funded commitments (8.3) 0.0                
Total unfunded commitments 6.9 10.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 6.9 $ 10.2                
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   5.75%           5.75% 5.75% 5.75%
Total first lien senior secured loans [6]   $ 10.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 10.1                
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3],[4] $ 10.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 9.8                  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.48% [2] 5.75% [1]   9.48% [2] 9.48% [2] 9.48% [2] 9.48% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 6.2 [3],[4] $ 6.3 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.1 [3],[4] $ 6.3 [6]                
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3],[4] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.4                  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3] $ 8.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 8.1                  
Investment, Identifier [Axis]: SG Acquisition, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.17% [2] 5.50% [1]   9.17% [2] 9.17% [2] 9.17% [2] 9.17% [2] 5.50% [1] 5.50% [1] 5.50% [1]
Total first lien senior secured loans $ 33.8 [3],[4] $ 35.6 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 33.5 [3],[4] 35.6 [6]                
Investment, Identifier [Axis]: SHO Holding I Corporation, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 124.9 [4],[9] 116.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 82.4 [4],[9] 98.9 [6],[7]                
Investment, Identifier [Axis]: SK SPV IV, LLC, Series A common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: SK SPV IV, LLC, Series B common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   3.8                
Less: funded commitments   0.0                
Total unfunded commitments   3.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   3.8                
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 3.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 3.8                  
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc., Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [4] 9.6 [7]                
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. and SM Holdco, Inc., Series B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 9.3 [4] $ 0.0 [7]                
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 4.8                  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 61.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 56.2                  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.19%     12.19% 12.19% 12.19% 12.19%      
Total first lien senior secured loans [3],[4] $ 22.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 20.9                  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, Warrant to purchase up to 6,118 Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 4.7                  
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   10.22%           10.22% 10.22% 10.22%
Total first lien senior secured loans [6],[7]   $ 21.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   19.9                
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Limited partnership class A-1 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [4] 0.6 [7]                
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Limited partnership class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 [4] 0.6 [7]                
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 21.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 14.3                  
Investment, Identifier [Axis]: SV-Burton Holdings, LLC & LBC Breeze Holdings LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value   $ 4.3                
Investment, Identifier [Axis]: SV-Burton Holdings, LLC & LBC Breeze Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 11.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   10.9                
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.3 7.3                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.3 7.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.3 7.3                
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.8                  
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.93%     9.93% 9.93% 9.93% 9.93%      
Total first lien senior secured loans [3],[4] $ 1.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.3                  
Investment, Identifier [Axis]: SVP-Singer Holdings Inc. and SVP-Singer Holdings LP, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.0 [4] $ 24.5 [7]                
Investment, Identifier [Axis]: SVP-Singer Holdings Inc. and SVP-Singer Holdings LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.50% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 44.4 [3],[4] $ 44.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 36.4 [3],[4] 42.3 [6],[7]                
Investment, Identifier [Axis]: Safe Home Security, Inc., Security Systems Inc., Safe Home Monitoring, Inc., National Protective Services, Inc., Bright Integrations LLC and Medguard Alert, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   8.5                
Less: funded commitments   0.0                
Total unfunded commitments   8.5                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 8.5                
Investment, Identifier [Axis]: Safe Home Security, Inc., Security Systems Inc., Safe Home Monitoring, Inc., National Protective Services, Inc., Bright Integrations LLC and Medguard Alert, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.63% [2] 8.25% [1]   11.63% [2] 11.63% [2] 11.63% [2] 11.63% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 47.9 [3],[4] $ 46.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 47.9 [3],[4] 46.2 [6],[7]                
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.5                  
Less: funded commitments (5.9)                  
Total unfunded commitments 4.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 4.6                  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.14%     10.14% 10.14% 10.14% 10.14%      
Total first lien senior secured loans [3],[4] $ 5.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 5.9                  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon [2] 10.13%     10.13% 10.13% 10.13% 10.13%      
Total first lien senior secured loans [3],[4] $ 14.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 13.9                  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 16.0                  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 9.5                
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 5.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   5.8                
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.6                  
Less: funded commitments (0.2)                  
Total unfunded commitments 4.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 4.4                  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 14.7                  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.14%     10.14% 10.14% 10.14% 10.14%      
Total first lien senior secured loans [3],[4] $ 0.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.6                  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.14%     10.14% 10.14% 10.14% 10.14%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services, LLC and Landscape Parallel Partners, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   5.1                
Less: funded commitments   0.0                
Total unfunded commitments   5.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 5.1                
Investment, Identifier [Axis]: SelectQuote, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 12.42% [2] 5.75% [1]   12.42% [2] 12.42% [2] 12.42% [2] 12.42% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 22.2 [3],[4] $ 22.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 19.5 [3],[4] 22.6 [6],[7]                
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 317.8 232.2                
Redemptions (cost) 31.1 367.7                
Sales (cost) 0.0 0.0                
Interest income 146.3 138.0                
Capital structuring service fees 16.9 18.6                
Dividend income 0.0 0.0                
Other income 5.5 3.8                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (25.3) 0.0                
Fair Value 1,248.6 987.3                
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Member interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8]   $ 0.0                
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Membership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [5] $ 0.0                  
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Subordinated certificates                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.77% [2] 8.21% [1]   12.77% [2] 12.77% [2] 12.77% [2] 12.77% [2] 8.21% [1] 8.21% [1] 8.21% [1]
Total first lien senior secured loans $ 1,274.1 [5],[15] $ 987.3 [8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1,248.6 [5],[15] 987.3 [8]                
Investment, Identifier [Axis]: Service Logic Acquisition, Inc. and MSHC, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.59%     9.59% 9.59% 9.59% 9.59%      
Total first lien senior secured loans $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1                  
Investment, Identifier [Axis]: Shermco Intermediate Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.0                  
Less: funded commitments (2.7)                  
Total unfunded commitments 1.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.3                  
Investment, Identifier [Axis]: Shermco Intermediate Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.82%     10.82% 10.82% 10.82% 10.82%      
Total first lien senior secured loans [4] $ 2.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 2.7                  
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 3.2 0.8                
Redemptions (cost) 4.5 1.4                
Sales (cost) 18.9 0.0                
Interest income 0.8 1.4                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.1 0.0                
Net realized gains (losses): 0.0 0.1                
Net unrealized gains (losses): 3.0 4.3                
Fair Value 6.0 23.1                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.5 2.5                
Less: funded commitments 0.0 (1.2)                
Total unfunded commitments 2.5 1.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 2.5 1.3                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.8 [4] 0.4 [7]                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Class C preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.8 [4] $ 0.4 [7]                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.84% [2] 6.00% [1]   9.84% [2] 9.84% [2] 9.84% [2] 9.84% [2] 6.00% [1] 6.00% [1] 6.00% [1]
Total first lien senior secured loans $ 0.1 [3],[4],[13] $ 19.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4],[13] $ 19.1 [6],[7]                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.25%           7.25% 7.25% 7.25%
Total first lien senior secured loans [6],[7],[14]   $ 1.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   $ 1.1                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7],[14]   $ 0.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   0.1                
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, Preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.3 [4] 2.0 [7]                
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 8.9                
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 27.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 27.0                
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 1.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   1.0                
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.0 5.0                
Less: funded commitments (1.8) (1.0)                
Total unfunded commitments 3.2 4.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 3.2 4.0                
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 13.9                  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.90%     10.90% 10.90% 10.90% 10.90%      
Total first lien senior secured loans [3],[4] $ 26.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 26.8                  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.90%     10.90% 10.90% 10.90% 10.90%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.59%     10.59% 10.59% 10.59% 10.59%      
Total first lien senior secured loans [3] $ 1.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 1.8                  
Investment, Identifier [Axis]: SilverBow Resources, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5],[11] 28.7                  
Investment, Identifier [Axis]: Singer Sewing Company, SVP-Singer Holdings, LLC and SVP-Singer Holdings LP                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost)   0.0                
Redemptions (cost)   234.2                
Sales (cost)   0.0                
Interest income   25.4                
Capital structuring service fees   1.9                
Dividend income   6.7                
Other income   0.5                
Net realized gains (losses):   109.7                
Net unrealized gains (losses):   (87.8)                
Fair Value   0.0                
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.1 7.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 7.1 7.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 7.1 7.1                
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.2 [4] $ 0.7 [7]                
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.48% [2] 5.75% [1]   9.48% [2] 9.48% [2] 9.48% [2] 9.48% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 10.3 [3],[4] $ 11.5 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 10.3 [3],[4] 9.9 [6]                
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 2.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 2.0                  
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 8.6                  
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.29%     11.29% 11.29% 11.29% 11.29%      
Total first lien senior secured loans [3],[4] $ 11.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 11.9                  
Investment, Identifier [Axis]: Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 5.1                
Investment, Identifier [Axis]: Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.25%           9.25% 9.25% 9.25%
Total first lien senior secured loans [6],[7]   $ 13.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   13.3                
Investment, Identifier [Axis]: SocialFlow, Inc., Warrant to purchase shares of Series C preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 $ 0.0 [7]                
Investment, Identifier [Axis]: Sophia, L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.73% [2] 9.00% [1]   12.73% [2] 12.73% [2] 12.73% [2] 12.73% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 105.9 [3],[4] $ 105.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 103.8 [3],[4] 105.9 [6],[7]                
Investment, Identifier [Axis]: SoundCloud Limited, Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.7 [4],[5] 0.7 [7],[8]                
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.7                  
Less: funded commitments 0.0                  
Total unfunded commitments 1.7                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 1.7                  
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.18%     11.18% 11.18% 11.18% 11.18%      
Total first lien senior secured loans [3],[4] $ 2.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 2.5                  
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp, Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 10.5                  
Investment, Identifier [Axis]: Spring Insurance Solutions, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   5.6                
Less: funded commitments   0.0                
Total unfunded commitments   5.6                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 5.6                
Investment, Identifier [Axis]: Spring Insurance Solutions, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.23% [2] 7.50% [1]   11.23% [2] 11.23% [2] 11.23% [2] 11.23% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 22.0 [3],[4] $ 19.7 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 19.6 [3],[4] $ 18.9 [6]                
Investment, Identifier [Axis]: Stamps.com Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.50% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 146.8 [3],[4] $ 197.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 140.9 [3],[4] 193.9 [6],[7]                
Investment, Identifier [Axis]: Star US Bidco LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.5 8.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 8.5 8.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.5 8.5                
Investment, Identifier [Axis]: Startec Equity, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 0.0 0.0                
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: Startec Equity, LLC, Member interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 0.0                
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   2.9                
Less: funded commitments   0.0                
Total unfunded commitments   2.9                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 2.9                
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.54% [2] 7.75% [1]   10.54% [2] 10.54% [2] 10.54% [2] 10.54% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 51.3 [3],[4],[5] $ 50.5 [6],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 50.3 [3],[4],[5] $ 50.5 [6],[8]                
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.08% [2] 9.00% [1]   11.08% [2] 11.08% [2] 11.08% [2] 11.08% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 5.2 [3],[4],[5] $ 0.8 [6],[7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.1 [3],[4],[5] 0.8 [6],[7],[8]                
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.75%     13.75% 13.75% 13.75% 13.75%      
Total first lien senior secured loans [3],[4],[5] $ 2.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 2.4                  
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 7.0 [4],[5] $ 6.8 [7],[8]                
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.54% [2] 7.50% [1]   11.54% [2] 11.54% [2] 11.54% [2] 11.54% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 42.8 [3],[4] $ 42.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 41.1 [3],[4] 42.8 [6],[7]                
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.54%     11.54% 11.54% 11.54% 11.54%      
Total first lien senior secured loans [3],[4] $ 10.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 9.9                  
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class A redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class B redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class C redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class D redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class E redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class F redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class G redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class H redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.2 [4],[5] 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Class I redeemable shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.2 [4],[5] $ 1.5 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 375.00% [2] 3.88% [1]   375.00% [2] 375.00% [2] 375.00% [2] 375.00% [2] 3.88% [1] 3.88% [1] 3.88% [1]
Total first lien senior secured loans $ 66.0 [4],[5] $ 70.2 [7],[8]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 66.0 [4],[5] 70.3 [7],[8]                
Investment, Identifier [Axis]: Storm Investment S.a.r.l., Ordinary shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [4],[5] 0.0 [7],[8]                
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 21.6 26.8                
Less: funded commitments (0.4) 0.0                
Total unfunded commitments 21.2 26.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 21.2 26.8                
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.3 [4] $ 9.2 [7]                
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.50% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 52.0 [3],[4] $ 17.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 50.4 [3],[4] $ 17.2 [6],[7]                
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.50% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 5.3 [3],[4] $ 74.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.2 [3],[4] 73.7 [6],[7]                
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4],[13] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] 0.0                  
Investment, Identifier [Axis]: Sundance Energy Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 41.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.0 0.0                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): (22.6) 0.0                
Net unrealized gains (losses): 1.2 (1.1)                
Fair Value 0.0 68.6                
Investment, Identifier [Axis]: Sundance Energy Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   68.6                
Investment, Identifier [Axis]: Sundance Group Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.0 7.6                
Less: funded commitments 0.0 (0.9)                
Total unfunded commitments 3.0 6.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.0 $ 6.7                
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.75%           7.75% 7.75% 7.75%
Total first lien senior secured loans [6],[7]   $ 15.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 15.3                
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.75%     10.75% 10.75% 10.75% 10.75%      
Total first lien senior secured loans [3],[4] $ 20.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 19.9                  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.93%     10.93% 10.93% 10.93% 10.93%      
Total first lien senior secured loans [3],[4] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.8                  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.75%           7.75% 7.75% 7.75%
Total first lien senior secured loans [6],[7]   $ 0.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   0.9                
Investment, Identifier [Axis]: Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation, Diecast Beacon                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.0 7.5                
Less: funded commitments (0.6) (0.6)                
Total unfunded commitments 5.4 6.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 5.4 $ 6.9                
Investment, Identifier [Axis]: Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation, Diecast Beacon, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [15] $ 0.0 [16]                
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 3.61% [2] 3.61% [1]   3.61% [2] 3.61% [2] 3.61% [2] 3.61% [2] 3.61% [1] 3.61% [1] 3.61% [1]
Total first lien senior secured loans $ 0.1 [4] $ 0.1 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [4] $ 0.1 [7]                
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon 11.16% [2] 8.75% [1]   11.16% [2] 11.16% [2] 11.16% [2] 11.16% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 147.9 [3],[4] $ 142.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 136.1 [3],[4] $ 142.5 [6],[7]                
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 75.0                  
Less: funded commitments (40.7)                  
Total unfunded commitments 34.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 34.3                  
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.86%     7.86% 7.86% 7.86% 7.86%      
Total first lien senior secured loans [4],[5] $ 24.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 24.2                  
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.95%     8.95% 8.95% 8.95% 8.95%      
Total first lien senior secured loans [4],[5] $ 16.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] $ 16.1                  
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 3.98% [2] 3.98% [1]   3.98% [2] 3.98% [2] 3.98% [2] 3.98% [2] 3.98% [1] 3.98% [1] 3.98% [1]
Total first lien senior secured loans $ 0.3 [4] $ 0.4 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.3 [4] $ 0.4 [7]                
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon 10.00% [2] 8.75% [1]   10.00% [2] 10.00% [2] 10.00% [2] 10.00% [2] 8.75% [1] 8.75% [1] 8.75% [1]
Total first lien senior secured loans $ 72.5 [3],[4] $ 69.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 67.3 [3],[4] 69.3                
Investment, Identifier [Axis]: Sunshine Sub, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   5.8                
Less: funded commitments   0.0                
Total unfunded commitments   5.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   5.8                
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.0 7.0                
Less: funded commitments (3.1) 0.0                
Total unfunded commitments 3.9 7.0                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.9 $ 7.0                
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.69%     8.69% 8.69% 8.69% 8.69%      
Total first lien senior secured loans [3],[4] $ 12.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 10.5                  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.25%     10.25% 10.25% 10.25% 10.25%      
Total first lien senior secured loans [4] $ 3.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 2.6                  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.07% [2] 8.63% [1]   12.07% [2] 12.07% [2] 12.07% [2] 12.07% [2] 8.63% [1] 8.63% [1] 8.63% [1]
Total first lien senior secured loans $ 76.2 [3],[4] $ 69.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 64.8 [3],[4] 69.9 [6],[7]                
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-1 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 73.1 [4] 85.0 [7]                
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-2 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 36.6 [4] 42.6 [7]                
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Series C-3 preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 14.3 [4] 16.6 [7]                
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.2 4.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 4.2 4.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 4.2 4.2                
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.0 $ 1.0                
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 13.1 [3],[4] $ 15.3 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 13.1 [3],[4] 15.3 [6]                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.0 9.3                
Less: funded commitments 0.0 (0.8)                
Total unfunded commitments 2.0 8.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 2.0 $ 8.5                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 0.1                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 0.1                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.98%     9.98% 9.98% 9.98% 9.98%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.41% [2] 6.75% [1]   9.41% [2] 9.41% [2] 9.41% [2] 9.41% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.75% [2] 6.75% [1]   10.75% [2] 10.75% [2] 10.75% [2] 10.75% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.46% [2] 6.75% [1]   10.46% [2] 10.46% [2] 10.46% [2] 10.46% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 8.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] $ 8.3 [6],[7]                
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7],[14]   $ 0.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   0.8                
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.3 5.3                
Less: funded commitments (0.1) 0.0                
Total unfunded commitments 0.2 5.3                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2 $ 5.3                
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 6.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 6.6                
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.98%     9.98% 9.98% 9.98% 9.98%      
Total first lien senior secured loans [3],[4] $ 34.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 34.4                  
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.50% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 6.5 [3],[4] $ 4.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 6.5 [3],[4] $ 4.0 [6],[7]                
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 34.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   34.8                
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.57%     9.57% 9.57% 9.57% 9.57%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: THG Acquisition, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 18.2 34.8                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 18.2 34.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 18.2 $ 34.8                
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.88% [2] 6.25% [1]   9.88% [2] 9.88% [2] 9.88% [2] 9.88% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 17.0 $ 0.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 16.7 [15] $ 0.6 [6],[7]                
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.75% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 14.9 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.7 [3],[4] $ 0.1 [6],[7]                
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.50% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 23.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] $ 23.2 [6],[7]                
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6]   $ 14.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 14.9                
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 7.5                  
Less: funded commitments (1.3)                  
Total unfunded commitments 6.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 6.2                  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.9                  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3] $ 35.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 35.1                  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.17%     10.17% 10.17% 10.17% 10.17%      
Total first lien senior secured loans [3] $ 1.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] 1.3                  
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.7 1.9                
Less: funded commitments (0.8) (0.5)                
Total unfunded commitments 0.9 1.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 (0.3)                
Total net adjusted unfunded revolving and delayed draw commitments 0.9 1.1                
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.6 $ 2.0                
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 8.92% [2] 6.25% [1]   8.92% [2] 8.92% [2] 8.92% [2] 8.92% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 1.4 [3],[4] $ 1.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.4 [3],[4] $ 1.1 [6],[7]                
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon 9.51% [2] 6.75% [1]   9.51% [2] 9.51% [2] 9.51% [2] 9.51% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.4 [3],[4] $ 0.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.4 [3],[4] $ 0.5 [6],[7]                
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon [2] 10.05%     10.05% 10.05% 10.05% 10.05%      
Total first lien senior secured loans [3],[4] $ 0.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.4                  
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 12.29% [2] 8.00% [1]   12.29% [2] 12.29% [2] 12.29% [2] 12.29% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 75.9 [3],[4] $ 78.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 65.3 [3],[4] 73.6 [6],[7]                
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., Warrant to purchase up to 57,827 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0                  
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   8.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   8.8                
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   1.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   0.5                
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [7],[10]   77.8                
Participating interest sold   0.6                
Secured borrowings   0.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[10]   $ 29.5                
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 3, Secured borrowing                    
Schedule of Investments [Line Items]                    
Coupon | Rate   14.50%           14.50% 14.50% 14.50%
Investment, Identifier [Axis]: Teligent, Inc, Series D preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   $ 0.0                
Investment, Identifier [Axis]: Teligent, Inc, Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Teligent, Inc, Warrant to purchase shares of common stock 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Teligent, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   3.4                
Less: funded commitments   0.0                
Total unfunded commitments   3.4                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   (3.4)                
Total net adjusted unfunded revolving and delayed draw commitments   0.0                
Investment, Identifier [Axis]: Tempus Labs, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.49%     10.49% 10.49% 10.49% 10.49%      
Total first lien senior secured loans [3],[4] $ 71.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 69.6                  
Investment, Identifier [Axis]: TerSera Therapeutics LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.1 $ 0.1                
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.60% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.60% [1] 6.60% [1] 6.60% [1]
Total first lien senior secured loans $ 5.0 [3],[4] $ 5.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.0 [3],[4] $ 5.1 [6]                
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.60% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.60% [1] 6.60% [1] 6.60% [1]
Total first lien senior secured loans $ 2.0 [3],[4] $ 2.1 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 2.0 [3],[4] $ 2.1 [6]                
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.98% [2] 6.60% [1]   9.98% [2] 9.98% [2] 9.98% [2] 9.98% [2] 6.60% [1] 6.60% [1] 6.60% [1]
Total first lien senior secured loans $ 1.8 [3],[4] $ 1.8 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.8 [3],[4] $ 1.8 [6]                
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: The Alaska Club Partners, LLC, Athletic Club Partners LLC and The Alaska Club, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.1 1.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 1.1 1.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 1.1 $ 1.1                
Investment, Identifier [Axis]: The Alaska Club Partners, LLC, Athletic Club Partners LLC and The Alaska Club, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 14.00% [2] 10.25% [1]   14.00% [2] 14.00% [2] 14.00% [2] 14.00% [2] 10.25% [1] 10.25% [1] 10.25% [1]
Total first lien senior secured loans $ 12.5 [3],[4] $ 15.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 12.5 [3],[4] 14.1 [6],[7]                
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 12.6 29.5                
Less: funded commitments (11.5) (2.0)                
Total unfunded commitments 1.1 27.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 1.1 27.5                
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.5 $ 4.9                
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.57% [2] 6.75% [1]   9.57% [2] 9.57% [2] 9.57% [2] 9.57% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 47.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.2 [3],[4] $ 46.7 [6],[7]                
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.08%     11.08% 11.08% 11.08% 11.08%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.10% [2] 8.25% [1]   10.10% [2] 10.10% [2] 10.10% [2] 10.10% [2] 8.25% [1] 8.25% [1] 8.25% [1]
Total first lien senior secured loans $ 8.9 [3],[4] $ 2.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.8 [3],[4] 2.0 [6],[7]                
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.50%     12.50% 12.50% 12.50% 12.50%      
Total first lien senior secured loans [3],[4] $ 2.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 2.5                  
Investment, Identifier [Axis]: The Edelman Financial Center, LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.13%     11.13% 11.13% 11.13% 11.13%      
Total first lien senior secured loans [4],[5] $ 13.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 12.0                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 1.7                  
Less: funded commitments (0.1)                  
Total unfunded commitments 1.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 1.6                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [5] $ 0.0                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.51%     10.51% 10.51% 10.51% 10.51%      
Total first lien senior secured loans [3],[4],[5] $ 3.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 3.4                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.00%     12.00% 12.00% 12.00% 12.00%      
Total first lien senior secured loans [3],[4],[5] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 0.1                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [4],[5] 3.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 2.9                  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Series A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 4.8                  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 14.4                  
Less: funded commitments (1.8)                  
Total unfunded commitments 12.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 12.6                  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 15.7                  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 10.43%     10.43% 10.43% 10.43% 10.43%      
Total first lien senior secured loans [3],[4] $ 213.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 209.3                  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.07%     10.07% 10.07% 10.07% 10.07%      
Total first lien senior secured loans [3],[4] $ 1.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.7                  
Investment, Identifier [Axis]: The Teaching Company Holdings, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 1.2 [7]                
Investment, Identifier [Axis]: The Teaching Company Holdings, Inc., Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.5 [4] 2.9 [7]                
Investment, Identifier [Axis]: The Ultimate Software Group, Inc. and H&F Unite Partners, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   10.0                
Less: funded commitments   (0.1)                
Total unfunded commitments   9.9                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 9.9                
Investment, Identifier [Axis]: The Ultimate Software Group, Inc. and H&F Unite Partners, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8],[16]   $ 0.0                
Investment, Identifier [Axis]: The Ultimate Software Group, Inc. and H&F Unite Partners, L.P., Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7],[8]   15.1                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 6.9 6.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 6.9 6.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 6.9 6.9                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 3.1 1.9                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class A units 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0 0.0                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, Class B units 2                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 $ 0.0                
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.23% [2] 5.75% [1]   9.23% [2] 9.23% [2] 9.23% [2] 9.23% [2] 5.75% [1] 5.75% [1] 5.75% [1]
Total first lien senior secured loans $ 37.4 [3],[4] $ 37.8 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 36.7 [3],[4] 37.8 [6]                
Investment, Identifier [Axis]: Therapy Brands Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   8.6                
Less: funded commitments   0.0                
Total unfunded commitments   8.6                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 8.6                
Investment, Identifier [Axis]: Therapy Brands Holdings LLC, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.10% [2] 7.50% [1]   11.10% [2] 11.10% [2] 11.10% [2] 11.10% [2] 7.50% [1] 7.50% [1] 7.50% [1]
Total first lien senior secured loans $ 29.1 [3],[4] $ 20.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 27.9 [3],[4] 20.5 [6],[7]                
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 11.7 11.7                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 11.7 11.7                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 11.7 $ 11.7                
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.98% [2] 8.00% [1]   11.98% [2] 11.98% [2] 11.98% [2] 11.98% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 23.0 [3],[4] $ 23.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 22.1 [3],[4] 22.8 [6],[7]                
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 19.0                  
Less: funded commitments 0.0                  
Total unfunded commitments 19.0                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 19.0                  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien secured notes                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 650.00%     650.00% 650.00% 650.00% 650.00%      
Total first lien senior secured loans [4],[11] $ 88.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] $ 74.9                  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.18%     9.18% 9.18% 9.18% 9.18%      
Total first lien senior secured loans [3],[4],[11] $ 10.9                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] 9.7                  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 10.7                  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.00%     9.00% 9.00% 9.00% 9.00%      
Total first lien senior secured loans [3],[4] $ 85.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 69.9                  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 143.1                  
Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments | Senior Direct Lending Program                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 1,631.0 1,540.0                
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc.                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 0.0 0.0                
Redemptions (cost) 0.0 0.0                
Sales (cost) 0.0 0.0                
Interest income 0.3 0.3                
Capital structuring service fees 0.0 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): (0.2) (1.5)                
Fair Value 3.7 3.9                
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.2 $ 0.4 [7]                
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.38% [2] 7.00% [1]   10.38% [2] 10.38% [2] 10.38% [2] 10.38% [2] 7.00% [1] 7.00% [1] 7.00% [1]
Total first lien senior secured loans $ 2.2 [3],[4] $ 2.2 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.9 [3],[4] $ 1.9 [6],[7]                
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.38% [2] 5.00% [1]   8.38% [2] 8.38% [2] 8.38% [2] 8.38% [2] 5.00% [1] 5.00% [1] 5.00% [1]
Total first lien senior secured loans $ 1.6 [3],[4] $ 1.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 1.6 [3],[4] 1.6 [6],[7]                
Investment, Identifier [Axis]: Touchstone Acquisition, Inc. and Touchstone Holding, L.P., Class A preferred units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 2.1 [4] $ 2.8 [7]                
Investment, Identifier [Axis]: Trader Corporation and Project Auto Finco Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.6                  
Less: funded commitments 0.0                  
Total unfunded commitments 3.6                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 3.6                  
Investment, Identifier [Axis]: Trader Corporation and Project Auto Finco Corp.., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.40%     11.40% 11.40% 11.40% 11.40%      
Total first lien senior secured loans [3],[4],[5] $ 12.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] $ 11.9                  
Investment, Identifier [Axis]: Triton Water Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 8.23% [2] 4.00% [1]   8.23% [2] 8.23% [2] 8.23% [2] 8.23% [2] 4.00% [1] 4.00% [1] 4.00% [1]
Total first lien senior secured loans $ 1.0 [3],[4],[11] $ 1.0 [6],[7],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.9 [3],[4],[11] $ 1.0 [6],[7],[12]                
Investment, Identifier [Axis]: Triton Water Holdings, Inc., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 625.00% [2] 6.25% [1]   625.00% [2] 625.00% [2] 625.00% [2] 625.00% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 0.1 [4],[11] $ 0.1 [7],[12]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [4],[11] 0.1 [7],[12]                
Investment, Identifier [Axis]: Two Six Labs, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 10.3                  
Less: funded commitments 0.0                  
Total unfunded commitments 10.3                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 10.3                  
Investment, Identifier [Axis]: Tyden Group Holding Corp., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8]   3.9                
Investment, Identifier [Axis]: Tyden Group Holding Corp., Preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [8]   0.4                
Investment, Identifier [Axis]: U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc., Common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 12.7 [4] $ 12.9 [7]                
Investment, Identifier [Axis]: U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.62% [2] 8.00% [1]   11.62% [2] 11.62% [2] 11.62% [2] 11.62% [2] 8.00% [1] 8.00% [1] 8.00% [1]
Total first lien senior secured loans $ 147.8 [3],[4] $ 147.8 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 143.3 [3],[4] 146.3 [6],[7]                
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 25.0                  
Less: funded commitments (10.8)                  
Total unfunded commitments 14.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 14.2                  
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.06%     8.06% 8.06% 8.06% 8.06%      
Total first lien senior secured loans [4],[5],[13] $ 10.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5],[13] 10.6                  
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P., Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[5] 14.4                  
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 9.9 9.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 9.9 9.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 9.9 $ 9.9                
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 26.4 [3],[4] $ 40.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 25.3 [3],[4] 39.7 [6],[7]                
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P., Limited partner interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.5 [4] 0.8 [7]                
Investment, Identifier [Axis]: United Digestive MSO Parent, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 18.4 8.4                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 18.4 8.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 18.4 8.4                
Investment, Identifier [Axis]: United Digestive MSO Parent, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.38%     9.38% 9.38% 9.38% 9.38%      
Total first lien senior secured loans [3],[4] $ 1.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.0                  
Investment, Identifier [Axis]: VCP-EDC Co-Invest, LLC, Membership units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.2 0.4                
Investment, Identifier [Axis]: VLS Recovery Services, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   23.8                
Less: funded commitments   (1.5)                
Total unfunded commitments   22.3                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 22.3                
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 8.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 8.8                
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7]   $ 5.2                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 5.2                
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.50%           6.50% 6.50% 6.50%
Total first lien senior secured loans [6],[7],[14]   $ 1.3                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7],[14]   1.3                
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.7 6.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 8.7 6.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.7 6.2                
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., Class A-2 units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.6 [4] $ 7.5 [7]                
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   6.75%           6.75% 6.75% 6.75%
Total first lien senior secured loans [6],[7]   $ 6.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   6.4                
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.60%     10.60% 10.60% 10.60% 10.60%      
Total first lien senior secured loans [3],[13] $ 6.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[13] $ 6.0                  
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.52%     10.52% 10.52% 10.52% 10.52%      
Total first lien senior secured loans [3],[4] $ 3.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 3.1                  
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC                    
Investments Activity And Fair Value Table [Abstract]                    
Purchases (cost) 6.0 0.9                
Redemptions (cost) 4.5 0.0                
Sales (cost) 0.0 0.0                
Interest income 5.0 4.0                
Capital structuring service fees 0.2 0.0                
Dividend income 0.0 0.0                
Other income 0.0 0.0                
Net realized gains (losses): 0.0 0.0                
Net unrealized gains (losses): 33.5 5.4                
Fair Value 116.1 77.5                
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   7.1                
Less: funded commitments   0.0                
Total unfunded commitments   7.1                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   7.1                
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 73.4 [4] 39.9 [7]                
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.62%     13.62% 13.62% 13.62% 13.62%      
Total first lien senior secured loans $ 27.3 [3],[4] 7.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 27.3 [3],[4] 7.0 [6],[7]                
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.62%     13.62% 13.62% 13.62% 13.62%      
Total first lien senior secured loans $ 9.4 [3],[4] 5.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 9.4 [3],[4] 5.5 [6],[7]                
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 13.62%     13.62% 13.62% 13.62% 13.62%      
Total first lien senior secured loans $ 6.0 [3],[4] 25.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 6.0 [3],[4] 25.1 [6],[7]                
Investment, Identifier [Axis]: VRC Companies, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.4                  
Less: funded commitments 0.0                  
Total unfunded commitments 5.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 5.4                  
Investment, Identifier [Axis]: VRC Companies, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.97%     10.97% 10.97% 10.97% 10.97%      
Total first lien senior secured loans [3] $ 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3] $ 0.0                  
Investment, Identifier [Axis]: VRC Companies, LLC, Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon [2] 12.00%     12.00% 12.00% 12.00% 12.00%      
Total first lien senior secured loans [4] $ 5.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] 4.7                  
Investment, Identifier [Axis]: VS Buyer, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.1 8.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 8.1 8.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.1 8.1                
Investment, Identifier [Axis]: VSC Investors LLC, Membership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.5 [4],[5],[11] 0.6 [7],[8],[12]                
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.0 [4] $ 0.7 [7]                
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 7.88%     7.88% 7.88% 7.88% 7.88%      
Total first lien senior secured loans [3],[4],[11] $ 14.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[11] $ 14.2                  
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.63% [2] 9.25% [1]   12.63% [2] 12.63% [2] 12.63% [2] 12.63% [2] 9.25% [1] 9.25% [1] 9.25% [1]
Total first lien senior secured loans $ 122.7 [3],[4] $ 21.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 121.5 [3],[4] $ 20.3 [6],[7]                
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.63% [2] 9.25% [1]   12.63% [2] 12.63% [2] 12.63% [2] 12.63% [2] 9.25% [1] 9.25% [1] 9.25% [1]
Total first lien senior secured loans $ 21.1 [3],[4] $ 122.7 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 20.9 [3],[4] 117.9 [6]                
Investment, Identifier [Axis]: Verista, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.2                  
Less: funded commitments (1.1)                  
Total unfunded commitments 7.1                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 7.1                  
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.19%     10.19% 10.19% 10.19% 10.19%      
Total first lien senior secured loans [3],[4] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.8                  
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.27%     10.27% 10.27% 10.27% 10.27%      
Total first lien senior secured loans [3],[4] $ 1.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.1                  
Investment, Identifier [Axis]: Verscend Holding Corp.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 22.5 22.5                
Less: funded commitments 0.0 (0.1)                
Total unfunded commitments 22.5 22.4                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 22.5 $ 22.4                
Investment, Identifier [Axis]: Verscend Holding Corp., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Vertice Pharma UK Parent Limited, Preferred shares                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.0 [5] $ 0.0 [8]                
Investment, Identifier [Axis]: Viant Medical Holdings, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 8.13%     8.13% 8.13% 8.13% 8.13%      
Total first lien senior secured loans [4],[11] $ 3.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4],[11] $ 2.8                  
Investment, Identifier [Axis]: Visual Edge Technology, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon 11.74% [2] 9.75% [1]   11.74% [2] 11.74% [2] 11.74% [2] 11.74% [2] 9.75% [1] 9.75% [1] 9.75% [1]
Total first lien senior secured loans $ 32.6 [3],[4] $ 32.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 29.3 [3],[4] 30.9 [6],[7]                
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans 103.8 [4],[9] 88.6 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 48.8 [4],[9] 79.7 [7]                
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Warrant to purchase shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [7]   0.0                
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Warrant to purchase up to 10,358,572 shares of common stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.0                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   10.3                
Less: funded commitments   (1.5)                
Total unfunded commitments   8.8                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   $ 8.8                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 35.4                  
Less: funded commitments (9.6)                  
Total unfunded commitments 25.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 25.8                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, Common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 4.4                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 33.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 32.4                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 14.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 14.2                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 11.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 11.0                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 10.7                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 10.5                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 5                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 4.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 4.4                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 6                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 7                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.98%     10.98% 10.98% 10.98% 10.98%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.32%     10.32% 10.32% 10.32% 10.32%      
Total first lien senior secured loans [3],[4],[13] $ 8.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] $ 8.4                  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 4.9                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 4.9                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 33.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 33.4                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 4.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 4.5                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 11.4                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 11.4                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 5                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6]   $ 10.8                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 10.8                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 6                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 9.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 9.0                
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   7.00%           7.00% 7.00% 7.00%
Total first lien senior secured loans [6],[7]   $ 1.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 1.5                
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.24% [2] 6.50% [1]   10.24% [2] 10.24% [2] 10.24% [2] 10.24% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 14.7 [3],[4] $ 14.9 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 14.2 [3],[4] $ 14.9 [6]                
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.24% [2] 6.50% [1]   10.24% [2] 10.24% [2] 10.24% [2] 10.24% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 19.9 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 19.9 [6],[7]                
Investment, Identifier [Axis]: Wand Newco 3, Inc., Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.63% [2] 7.43% [1]   11.63% [2] 11.63% [2] 11.63% [2] 11.63% [2] 7.43% [1] 7.43% [1] 7.43% [1]
Total first lien senior secured loans $ 182.6 [4] $ 180.2 [7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 178.9 [4] $ 180.2 [7]                
Investment, Identifier [Axis]: Wash Encore Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.12% [2] 6.75% [1]   9.12% [2] 9.12% [2] 9.12% [2] 9.12% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 98.5 [3],[4] $ 135.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 96.5 [3],[4] 134.2 [6],[7]                
Investment, Identifier [Axis]: Watchfire Enterprises, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments   2.0                
Less: funded commitments   0.0                
Total unfunded commitments   2.0                
Less: commitments substantially at discretion of the Company   0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions   0.0                
Total net adjusted unfunded revolving and delayed draw commitments   2.0                
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.7 1.9                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.7 1.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 0.7 1.9                
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.2 $ 2.7                
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.23% [2] 6.25% [1]   10.23% [2] 10.23% [2] 10.23% [2] 10.23% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 20.4 [3],[4] $ 19.4 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 20.4 [3],[4] $ 19.4 [6]                
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   0.00%           0.00% 0.00% 0.00%
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [16]   $ 0.0                
Investment, Identifier [Axis]: Waverly Advisors, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.2                  
Less: funded commitments 0.0                  
Total unfunded commitments 0.2                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 0.2                  
Investment, Identifier [Axis]: Waverly Advisors, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.23%     10.23% 10.23% 10.23% 10.23%      
Total first lien senior secured loans [3],[4],[5] $ 0.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[5] 0.6                  
Investment, Identifier [Axis]: WebPT, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.9 0.1                
Less: funded commitments (0.3) 0.0                
Total unfunded commitments 0.6 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.6 $ 0.1                
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.48% [2] 7.75% [1]   11.48% [2] 11.48% [2] 11.48% [2] 11.48% [2] 7.75% [1] 7.75% [1] 7.75% [1]
Total first lien senior secured loans $ 48.1 [3],[4] $ 48.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 48.1 [3],[4] 48.1 [6],[7]                
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.26%     11.26% 11.26% 11.26% 11.26%      
Total first lien senior secured loans [3],[4] $ 0.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.3                  
Investment, Identifier [Axis]: Wellness AcquisitionCo, Inc.                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 3.9 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 3.9 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.9 $ 0.1                
Investment, Identifier [Axis]: Wellness AcquisitionCo, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.91% [2] 6.50% [1]   9.91% [2] 9.91% [2] 9.91% [2] 9.91% [2] 6.50% [1] 6.50% [1] 6.50% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 0.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.1 [3],[4] 0.1 [6],[7]                
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 4.1 9.9                
Less: funded commitments (1.0) 0.0                
Total unfunded commitments 3.1 9.9                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 3.1 $ 9.9                
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 18.0 [3],[4] $ 18.2 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 17.8 [3],[4] $ 18.2 [6]                
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.48% [2] 6.75% [1]   10.48% [2] 10.48% [2] 10.48% [2] 10.48% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3],[4] $ 9.5 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.2 [3],[4] 9.5 [6],[7]                
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.48%     10.48% 10.48% 10.48% 10.48%      
Total first lien senior secured loans [3],[4] $ 0.2                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.2                  
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 10.09%     10.09% 10.09% 10.09% 10.09%      
Total first lien senior secured loans [3],[4],[13] $ 0.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4],[13] 0.8                  
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, Limited partnership interests                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 5.1 [4] $ 2.8 [7]                
Investment, Identifier [Axis]: Winebow Holdings, Inc. and The Vintner Group, Inc., First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.63% [2] 7.25% [1]   10.63% [2] 10.63% [2] 10.63% [2] 10.63% [2] 7.25% [1] 7.25% [1] 7.25% [1]
Total first lien senior secured loans $ 28.0 [3],[4] $ 28.3 [6]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 27.5 [3],[4] 28.3 [6]                
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 5.2 5.2                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 5.2 5.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 5.2 5.2                
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [6],[7]   61.6                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   61.6                
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [3],[4] 67.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 67.4                  
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.44%     11.44% 11.44% 11.44% 11.44%      
Total first lien senior secured loans [3],[4] $ 17.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 17.3                  
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 8.9 8.9                
Less: funded commitments (0.2) (1.1)                
Total unfunded commitments 8.7 7.8                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 8.7 7.8                
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, Class A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 4.2 [4] 4.2 [7]                
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, Class B units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 1.1 [4] $ 1.1 [7]                
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.75% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 37.0 [3] $ 16.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 36.6 [3] $ 16.1 [6],[7]                
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 10.13% [2] 6.75% [1]   10.13% [2] 10.13% [2] 10.13% [2] 10.13% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.1 [3],[4] $ 39.3 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 0.1 [3],[4] $ 39.0 [6],[7]                
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.25% [2] 6.75% [1]   12.25% [2] 12.25% [2] 12.25% [2] 12.25% [2] 6.75% [1] 6.75% [1] 6.75% [1]
Total first lien senior secured loans $ 0.2 [3] $ 1.1 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 0.2 [3] 1.1 [6],[7]                
Investment, Identifier [Axis]: YE Brands Holdings, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.2 1.2                
Less: funded commitments (1.5) 0.0                
Total unfunded commitments 0.7 1.2                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.7 $ 1.2                
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate 9.93% [2] 6.25% [1]   9.93% [2] 9.93% [2] 9.93% [2] 9.93% [2] 6.25% [1] 6.25% [1] 6.25% [1]
Total first lien senior secured loans $ 8.2 [3],[4] $ 8.0 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 8.2 [3],[4] $ 7.9 [6],[7]                
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.68%     9.68% 9.68% 9.68% 9.68%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 0.1                  
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.47%     9.47% 9.47% 9.47% 9.47%      
Total first lien senior secured loans [3],[4] $ 1.5                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 1.5                  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 21.5                  
Less: funded commitments (0.1)                  
Total unfunded commitments 21.4                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments $ 21.4                  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 9.48%     9.48% 9.48% 9.48% 9.48%      
Total first lien senior secured loans [3],[4] $ 0.1                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 0.1                  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured revolving loan                    
Schedule of Investments [Line Items]                    
Total first lien senior secured loans [15] 0.0                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [15] 0.0                  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, Series A units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 5.5                  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 16.8                  
Less: funded commitments 0.0                  
Total unfunded commitments 16.8                  
Less: commitments substantially at discretion of the Company 0.0                  
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0                  
Total net adjusted unfunded revolving and delayed draw commitments 16.8                  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, Class A common units                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 2.7                  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, First lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.04%     11.04% 11.04% 11.04% 11.04%      
Total first lien senior secured loans [3],[4] $ 42.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 41.6                  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, Series A preferred stock                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [4] $ 26.8                  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   9.00%           9.00% 9.00% 9.00%
Total first lien senior secured loans [6],[7]   $ 56.0                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6],[7]   $ 56.0                
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.97%     11.97% 11.97% 11.97% 11.97%      
Total first lien senior secured loans [3],[4] $ 55.8                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 55.2                  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 11.97% [2] 9.00% [1]   11.97% [2] 11.97% [2] 11.97% [2] 11.97% [2] 9.00% [1] 9.00% [1] 9.00% [1]
Total first lien senior secured loans $ 56.0 [3],[4] $ 5.4 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 55.4 [3],[4] 5.4 [6],[7]                
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 3                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.97%     11.97% 11.97% 11.97% 11.97%      
Total first lien senior secured loans [3],[4] $ 24.3                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 24.1                  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 4                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 11.97%     11.97% 11.97% 11.97% 11.97%      
Total first lien senior secured loans [3],[4] $ 5.4                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] 5.3                  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 2.5 2.5                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 2.5 2.5                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments 2.5 2.5                
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Limited partnership interest                    
Investments Activity And Fair Value Table [Abstract]                    
Fair Value $ 3.7 [4],[5] $ 5.4 [7],[8]                
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan                    
Schedule of Investments [Line Items]                    
Coupon | Rate [1]   8.50%           8.50% 8.50% 8.50%
Total first lien senior secured loans [6]   $ 22.5                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [6]   $ 22.4                
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 1                    
Schedule of Investments [Line Items]                    
Coupon | Rate [2] 12.07%     12.07% 12.07% 12.07% 12.07%      
Total first lien senior secured loans [3],[4] $ 30.6                  
Investments Activity And Fair Value Table [Abstract]                    
Fair Value [3],[4] $ 27.2                  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 2                    
Schedule of Investments [Line Items]                    
Coupon | Rate 12.38% [2] 8.50% [1]   12.38% [2] 12.38% [2] 12.38% [2] 12.38% [2] 8.50% [1] 8.50% [1] 8.50% [1]
Total first lien senior secured loans $ 17.2 [3],[4] $ 30.6 [6],[7]                
Investments Activity And Fair Value Table [Abstract]                    
Fair Value 15.3 [3],[4] 30.6 [6],[7]                
Investment, Identifier [Axis]: n2y Holding, LLC                    
Financial Support for Nonconsolidated Legal Entity [Abstract]                    
Total commitments 0.1 0.1                
Less: funded commitments 0.0 0.0                
Total unfunded commitments 0.1 0.1                
Less: commitments substantially at discretion of the Company 0.0 0.0                
Less: unavailable commitments due to borrowing base or other covenant restrictions 0.0 0.0                
Total net adjusted unfunded revolving and delayed draw commitments $ 0.1 $ 0.1                
[1] Investments without an interest rate are non-income producing.
[2] Investments without an interest rate are non-income producing.
[3] Loan includes interest rate floor feature.
[4] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[5] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 25% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2022.
[6] Loan includes interest rate floor feature.
[7] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[8] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 16% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2021.
[9] Loan was on non-accrual status as of December 31, 2022.
[10] Loan was on non-accrual status as of December 31, 2021.
[11] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[12] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[13] As of December 31, 2022, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[14] As of December 31, 2021, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[15] As of December 31, 2022, no amounts were funded by the Company under this first lien senior secured revolving loan; however, there were letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[16] As of December 31, 2021, no amounts were funded by the Company under this first lien senior secured revolving loan; however, there were letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[17] The Company sold a participating interest of approximately $79.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $79.0 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2022, the interest rate in effect for the secured borrowing was 11.62%.
[18] The Company sold a participating interest of approximately $75.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $73.2 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2021, the interest rate in effect for the secured borrowing was 8.50%.
[19] As of December 31, 2021, the Company was party to subscription agreements to fund equity investments in private equity investment partnerships as follows:
(in millions)
Company		Total private equity commitmentsLess: funded private equity commitmentsTotal unfunded private equity commitmentsLess: private equity commitments substantially at the discretion of the CompanyTotal net adjusted unfunded private equity commitments
PCG-Ares Sidecar Investment, L.P. and PCG-Ares Sidecar Investment II, L.P.$50.0 $(12.5)$37.5 $(37.5)$— 
European Capital UK SME Debt LP60.9 (55.1)5.8 (5.8)— 
$110.9 $(67.6)$43.3 $(43.3)$— 
[20] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $40.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
[21] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $46.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
v3.22.4
CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY - USD ($)
$ in Millions
Total
Cumulative Effect, Period of Adoption, Adjustment
Common Stock
Capital in Excess of Par Value
Capital in Excess of Par Value
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Undistributed (Overdistributed) Earnings
Accumulated Undistributed (Overdistributed) Earnings
Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2019     431,000,000        
Beginning balance at Dec. 31, 2019 $ 7,467   $ 0 $ 7,760   $ (293)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of common stock, net of offering and underwriting costs 4     4      
Repurchases of common stock (in shares)     (8,000,000)        
Repurchases of common stock $ (100)     (100)      
Shares issued in connection with dividend reinvestment plan (in shares) 0            
Net investment income $ 794         794  
Net realized losses on investments, foreign currency and other transactions (166)         (166)  
Net unrealized losses on investments, foreign currency and other transactions (144)         (144)  
Dividends declared and payable (679)         (679)  
Tax reclassification of stockholders’ equity in accordance with GAAP 0     (8)   8  
Ending balance (in shares) at Dec. 31, 2020     423,000,000        
Ending balance at Dec. 31, 2020 7,176   $ 0 7,656   (480)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuances of common stock (net of offering and underwriting costs) (in shares)     42,000,000        
Issuance of common stock, net of offering and underwriting costs $ 819     819      
Shares issued in connection with dividend reinvestment plan (in shares) 1,900,000   3,000,000        
Shares issued in connection with dividend reinvestment plan $ 38     38      
Net investment income 741         741  
Net realized losses on investments, foreign currency and other transactions 240         240  
Net unrealized losses on investments, foreign currency and other transactions 586         586  
Dividends declared and payable (732)         (732)  
Tax reclassification of stockholders’ equity in accordance with GAAP 0     40   (40)  
Ending balance (in shares) at Dec. 31, 2021     468,000,000        
Ending balance at Dec. 31, 2021 8,868 $ (2) $ 0 8,553 $ (4) 315 $ 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuances of common stock (net of offering and underwriting costs) (in shares)     50,000,000        
Issuance of common stock, net of offering and underwriting costs $ 1,001     1,000      
Shares issued in connection with dividend reinvestment plan (in shares) 1,500,000   1,000,000        
Shares issued in connection with dividend reinvestment plan $ 29     29      
Net investment income 1,092         1,092  
Net realized losses on investments, foreign currency and other transactions 33         33  
Net unrealized losses on investments, foreign currency and other transactions (525)         (525)  
Dividends declared and payable (941)         (941)  
Tax reclassification of stockholders’ equity in accordance with GAAP 0     (22)   22  
Ending balance (in shares) at Dec. 31, 2022     519,000,000        
Ending balance at Dec. 31, 2022 $ 9,555   $ 1 $ 9,556   $ (2)  
v3.22.4
CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
OPERATING ACTIVITIES:      
Net increase in stockholders’ equity resulting from operations $ 600 $ 1,567 $ 484
Adjustments to reconcile net increase in stockholders’ equity resulting from operations:      
Net realized (gains) losses on investments, foreign currency and other transactions (81) (283) 166
Net unrealized losses (gains) on investments, foreign currency and other transactions 525 (586) 144
Realized loss on extinguishment of debt 48 43 0
Net accretion of discount on investments (13) (16) (8)
PIK interest (138) (164) (150)
Collections of PIK interest 30 104 55
PIK dividends (175) (91) (67)
Collections of PIK dividends 71 122 1
Amortization of debt issuance costs 30 29 23
Net amortization of discount (premium) on notes payable (4) 2 8
Proceeds from sales and repayments of investments and other transactions 7,747 10,250 5,468
Purchases of investments (9,852) (13,644) (6,759)
Changes in operating assets and liabilities:      
Interest receivable (34) (24) 12
Receivable from participants 0 38 (38)
Other assets 58 10 (21)
Operating lease right-of-use asset 7 12 56
Base management fees payable 10 13 1
Income based fees payable 14 (72) 92
Capital gains incentive fees payable (126) 161 (58)
Interest and facility fees payable 5 17 29
Payable to participants (80) 42 63
Accounts payable and other liabilities 11 27 (20)
Operating lease liabilities (12) (16) (61)
Net cash used in operating activities (1,359) (2,459) (580)
FINANCING ACTIVITIES:      
Borrowings on debt 7,950 19,336 8,256
Repayments and repurchases of debt (6,818) (16,829) (6,737)
Debt issuance costs (16) (64) (37)
Net proceeds from issuance of common stock 1,001 819 4
Dividends paid (912) (694) (679)
Repurchases of common stock 0 0 (100)
Secured borrowings, net 5 51 23
Net cash provided by financing activities 1,210 2,619 730
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH (149) 160 150
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD 486 326 176
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD 337 486 326
Supplemental Information:      
Interest paid during the period 402 310 243
Taxes, including excise tax, paid during the period 39 26 16
Dividends declared and payable during the period $ 941 $ 732 $ 679
v3.22.4
CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Amortized cost of investments $ 22,043.0 $ 19,810.0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 700 600
Common stock, shares issued (in shares) 519 468
Common stock, shares outstanding (in shares) 519 468
v3.22.4
CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY (Parenthetical) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]      
Cash dividends declared (in usd per share) $ 1.87 $ 1.62 $ 1.60
Accounting Standards Update [Extensible Enumeration]   Accounting Standards Update 2020-06  
v3.22.4
ORGANIZATION
 12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
ORGANIZATION
1. ORGANIZATION

Ares Capital Corporation (the “Company”) is a specialty finance company that is a closed-end, non-diversified management investment company incorporated in Maryland. The Company has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “Investment Company Act”). The Company has elected to be treated as a regulated investment company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Code”), and operates in a manner so as to qualify for the tax treatment applicable to RICs.
 
The Company’s investment objective is to generate both current income and capital appreciation through debt and equity investments. The Company invests primarily in first lien senior secured loans (including “unitranche” loans, which are loans that combine both senior and subordinated debt, generally in a first lien position) and second lien senior secured loans. In addition to senior secured loans, the Company also invests in subordinated loans (sometimes referred to as mezzanine debt), which in some cases includes an equity component, and preferred equity. To a lesser extent, the Company also makes common equity investments.
 
The Company is externally managed by Ares Capital Management LLC (“Ares Capital Management” or the Company’s “investment adviser”), a subsidiary of Ares Management Corporation (“Ares Management”), a publicly traded, leading global alternative investment manager, pursuant to an investment advisory and management agreement. Ares Operations LLC (“Ares Operations” or the Company’s “administrator”), a subsidiary of Ares Management, provides certain administrative and other services necessary for the Company to operate.
v3.22.4
SIGNIFICANT ACCOUNTING POLICIES
 12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
SIGNIFICANT ACCOUNTING POLICIES
2. SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation
 
The accompanying consolidated financial statements have been prepared on the accrual basis of accounting in conformity with U.S. generally accepted accounting principles (“GAAP”), and include the accounts of the Company and its consolidated subsidiaries. The Company is an investment company following accounting and reporting guidance in Accounting Standards Codification (“ASC”) 946, Financial Services-Investment Companies. The consolidated financial statements reflect all adjustments and reclassifications that, in the opinion of management, are necessary for the fair presentation of the results of operations and financial condition as of and for the periods presented. All significant intercompany balances and transactions have been eliminated.
 
Cash, Cash Equivalents and Restricted Cash
 
Cash and cash equivalents include funds from time to time deposited with financial institutions and short-term, liquid investments in a money market account. Cash and cash equivalents are carried at cost which approximates fair value. As of December 31, 2022 and 2021, there was $12 and $62, respectively, of cash denominated in foreign currencies included within “cash and cash equivalents” or “restricted cash” in the accompanying consolidated balance sheet.

Restricted cash primarily relates to cash received by the Company on behalf of participating lenders as a result of the Company’s role as administrative agent for certain loans. The cash received is generally distributed to participating lenders shortly after the receipt of such cash.

The following table provides a reconciliation of cash, cash equivalents and restricted cash in the consolidated balance sheet to the total amount shown at the end of the applicable period in the consolidated statement of cash flows:
 As of December 31,
 20222021
Cash and cash equivalents$303 $372 
Restricted cash34 114 
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows$337 $486 
 
Concentration of Credit Risk
 
The Company places its cash and cash equivalents with financial institutions and, at times, cash held in money market accounts may exceed the Federal Deposit Insurance Corporation insured limit.
 
Investments
 
Investment transactions are recorded on the trade date. Realized gains or losses are measured by the difference between the net proceeds from the repayment or sale and the amortized cost basis of the investment using the specific identification method without regard to unrealized gains or losses previously recognized, and include investments charged off during the period, net of recoveries. Unrealized gains or losses primarily reflect the change in investment values, including the reversal of previously recorded unrealized gains or losses when gains or losses are realized.

Effective October 1, 2022, pursuant to Rule 2a-5 under the 1940 Act, the Company’s board of directors selected the Company’s investment adviser as the Company’s valuation designee to perform the fair value determinations for investments held by the Company without readily available market quotations.
 
Investments for which market quotations are readily available are typically valued at such market quotations. In order to validate market quotations, the Company looks at a number of factors to determine if the quotations are representative of fair value, including the source and nature of the quotations. Debt and equity securities that are not publicly traded or whose market prices are not readily available (i.e., substantially all of the Company’s investments) are valued at fair value as determined in good faith by the Company’s investment adviser, as the valuation designee, subject to the oversight of its board of directors, based on, among other things, the input of the Company’s independent third-party valuation firms that have been engaged to support the valuation of such portfolio investments at least once during a trailing 12-month period (with certain de minimis exceptions) and under a valuation policy and a consistently applied valuation process. The valuation process is conducted at the end of each fiscal quarter by the Company’s investment adviser, and a portion of the Company’s investment portfolio at fair value is subject to review by an independent third-party valuation firm each quarter. In addition, the Company’s independent registered public accounting firm obtains an understanding of, and performs select procedures relating to, the Company’s valuation process within the context of performing the integrated audit.
 
As part of the valuation process, the Company’s investment adviser may take into account the following types of factors, if relevant, in determining the fair value of the Company’s investments: the enterprise value of a portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to any similar publicly traded securities, changes in the interest rate environment and the credit markets, which may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent sale occurs, the Company’s investment adviser considers the pricing indicated by the external event to corroborate the valuation.
 
Because there is not a readily available market value for most of the investments in its portfolio, substantially all of the Company’s portfolio investments are valued at fair value as determined in good faith by its investment adviser, as the valuation designee, as described herein. Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period. Additionally, the fair value of the Company’s investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that the Company may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly traded securities. If the Company was required to liquidate a portfolio investment in a forced or liquidation sale, the Company could realize significantly less than the value at which the Company has recorded it.
 
In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the unrealized gains or losses reflected in the valuations currently assigned.

The Company’s investment adviser, as the valuation designee, subject to the oversight of its board of directors undertakes a multi-step valuation process each quarter, as described below:

•The Company’s quarterly valuation process begins with a preliminary valuation being prepared by the investment professionals responsible for the portfolio investment in conjunction with the Company’s portfolio management and valuation team.

•Preliminary valuations are reviewed and discussed by the valuation committee of the Company’s investment adviser.

•The valuation committee of the Company’s investment adviser determines the fair value of each investment in the Company’s portfolio without a readily available market quotation in good faith based on, among other things, the input of the independent third-party valuation firms, where applicable.
 
See Note 8 for more information on the Company’s valuation process.

Interest Income Recognition
 
Interest income is recorded on an accrual basis and includes the accretion of discounts, amortization of premiums and payment-in-kind (“PIK”) interest. Discounts from and premiums to par value on investments purchased are accreted/amortized into interest income over the life of the respective security using the effective yield method. To the extent loans contain PIK provisions, PIK interest, computed at the contractual rate specified in each applicable agreement, is accrued and recorded as interest income and added to the principal balance of the loan. PIK interest income added to the principal balance is generally collected upon repayment of the outstanding principal. To maintain the Company’s status as a RIC, this non-cash source of income must be paid out to stockholders in the form of dividends for the year the income was earned, even though the Company has not yet collected the cash. The amortized cost of investments represents the original cost adjusted for any accretion of discounts, amortization of premiums and PIK interest.

Loans are generally placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected in full. Accrued and unpaid interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon the Company’s judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest are paid or there is no longer any reasonable doubt that such principal or interest will be collected in full and, in the Company’s judgment, are likely to remain current. The Company may make exceptions to this policy if the loan has sufficient collateral value (i.e., typically measured as enterprise value of the portfolio company) or is in the process of collection.

Dividend Income Recognition 

Dividend income on preferred equity is recorded on an accrual basis to the extent that such amounts are payable by the portfolio company and are expected to be collected. Dividend income on common equity is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies. To the extent a preferred equity contains PIK provisions, PIK dividends, computed at the contractual rate specified in each applicable agreement, are accrued and recorded as dividend income and added to the principal balance of the preferred equity. PIK dividends added to the principal balance are generally collected upon redemption of the equity.
 
Capital Structuring Service Fees and Other Income
 
In pursuit of the Company’s investment objective, the Company’s investment adviser seeks to provide assistance to its portfolio companies and in return the Company may receive fees for capital structuring services. These fees are fixed based on contractual terms, are generally only available to the Company as a result of the Company’s underlying investments, are normally paid at the closing of the investments, are generally non-recurring and non-refundable and are recognized as revenue when earned upon closing of the investment. The services that the Company’s investment adviser provides vary by investment, but generally include reviewing existing credit facilities, arranging bank financing, arranging equity financing, structuring financing from multiple lenders, structuring financing from multiple equity investors, restructuring existing loans, raising equity
and debt capital, and providing general financial advice, which concludes upon closing of the investment. Any services of the above nature subsequent to the closing would generally generate a separate fee payable to the Company. In certain instances where the Company is invited to participate as a co-lender in a transaction and does not provide significant services in connection with the investment, a portion of loan fees paid to the Company in such situations will be deferred and amortized over the contractual life of the loan.

Other income includes amendment fees that are fixed based on contractual terms and are generally non-recurring and
non-refundable and are recognized as revenue when earned upon closing of the related transaction. Other income also includes fees for management and consulting services, agency services, loan guarantees, commitments, and other services rendered by the Company to portfolio companies. Such fees are fixed based on contractual terms and are recognized as income as services are rendered.
 
Foreign Currency Translation
 
The Company’s books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:
 
(1)Fair value of investment securities, other assets and liabilities—at the exchange rates prevailing at the end of the period.

(2)Purchases and sales of investment securities, income and expenses—at the exchange rates prevailing on the respective dates of such transactions, income or expenses.
 
Results of operations based on changes in foreign exchange rates are separately disclosed in the statement of operations, if any. Foreign security and currency translations may involve certain considerations and risks not typically associated with investing in U.S. companies and U.S. government securities. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices more volatile than those of comparable U.S. companies or U.S. government securities. 

Derivative Instruments
 
The Company does not utilize hedge accounting and as such values its derivatives at fair value with the unrealized gains or losses recorded in “net unrealized gains (losses) from foreign currency and other transactions” in the Company’s consolidated statement of operations.
 
Equity Offering Expenses
 
The Company’s offering costs are charged against the proceeds from equity offerings when proceeds are received.
 
Debt Issuance Costs
 
Debt issuance costs are amortized over the life of the related debt instrument using the straight line method or the effective yield method, depending on the type of debt instrument.

Secured Borrowings

The Company follows the guidance in ASC Topic 860, Transfers and Servicing, when accounting for participations and other partial loan sales. Certain loan sales do not qualify for sale accounting under ASC Topic 860 because these sales do not meet the definition of a “participating interest,” as defined in the guidance, in order for sale treatment to be allowed. Participations or other partial loan sales which do not meet the definition of a participating interest or which are not eligible for sale accounting remain as an investment on the consolidated balance sheet as required under GAAP and the proceeds are recorded as a secured borrowing. Secured borrowings are carried at fair value.
 
 Leases

The Company is obligated under a number of operating leases pursuant to which it is leasing office facilities from third parties with remaining terms ranging from approximately one to four years. Such operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities in the accompanying consolidated balance sheets. The Company does not have any finance leases.

The ROU asset represents the Company’s right to use an underlying asset for the lease term and the operating lease liability represents the Company’s obligation to make lease payments arising from such lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the remaining lease term. The Company’s leases do not provide an implicit discount rate, and as such the Company uses its weighted average borrowing rate based on the information available at the commencement date in determining the present value of the remaining lease payments. Lease expense is recognized on a straight-line basis over the remaining lease term. The Company has elected as a practical expedient to treat non-lease components as part of the lease as these components are not significant when compared to the lease component.

Income Taxes
 
The Company has elected to be treated as a RIC under the Code and operates in a manner so as to qualify for the tax treatment applicable to RICs. To qualify as a RIC, the Company must, among other requirements, meet certain source-of- income and asset diversification requirements and timely distribute to its stockholders at least 90% of its investment company taxable income, as defined by the Code, for each year. The Company has made and intends to continue to make the requisite distributions to its stockholders, which will generally relieve the Company from U.S. federal corporate-level income taxes.
 
Depending on the level of taxable income earned in a tax year, the Company may choose to carry forward taxable income in excess of current year dividend distributions from such current year taxable income into the next tax year and pay a 4% excise tax on such income, as required. To the extent that the Company determines that its estimated current year taxable income will be in excess of estimated dividend distributions for the current year from such income, the Company accrues excise tax, if any, on estimated excess taxable income as such taxable income is earned.
 
The Company may hold certain portfolio company investments through consolidated taxable subsidiaries. Such subsidiaries may be subject to U.S. federal and state corporate-level income taxes. These consolidated subsidiaries recognize deferred tax assets and liabilities for the estimated future tax effects attributable to temporary differences between the tax basis of certain assets and liabilities and the reported amounts included in the accompanying consolidated balance sheet using the applicable statutory tax rates in effect for the year in which any such temporary differences are expected to reverse.    
 
Dividends to Common Stockholders
 
Dividends and distributions to common stockholders are recorded on the ex-dividend date. The amount to be paid out as a dividend is determined by the Company’s board of directors each quarter and is generally based upon the earnings estimated by management and considers the level of undistributed taxable income carried forward from the prior year for distribution in the current year. Net realized capital gains, if any, are generally distributed, although the Company may decide to retain such capital gains for investment.
 
The Company has adopted a dividend reinvestment plan that provides for reinvestment of any distributions the Company declares in cash on behalf of its stockholders, unless a stockholder elects to receive cash. As a result, if the Company’s board of directors authorizes, and the Company declares, a cash dividend, then the Company’s stockholders who have not “opted out” of the Company’s dividend reinvestment plan will have their cash dividends automatically reinvested in additional shares of the Company’s common stock, rather than receiving the cash dividend. The Company may use newly issued shares to implement the dividend reinvestment plan or, if the Company is otherwise permitted under applicable law to purchase such shares, the Company may purchase shares in the open market in connection with the Company’s obligations under the dividend reinvestment plan.
 
Use of Estimates in the Preparation of Financial Statements
 
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of actual and contingent assets and liabilities at the date of the financial statements and the reported amounts of income or loss and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates include the valuation of investments.
Recent Accounting Pronouncements

The Company considers the applicability and impact of all accounting standard updates (“ASU”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not listed below were assessed and either determined to be not applicable or expected to have minimal impact on its consolidated financial statements.

In August 2020, the FASB issued ASU No. 2020-06, “Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” which simplifies the accounting for convertible instruments by removing the separation models for (1) convertible debt with a cash conversion feature and (2) convertible instruments with a beneficial conversion feature. As a result, after adoption, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost. Additionally, ASU 2020-06 requires the application of the if-converted method to calculate the impact of convertible instruments on diluted earnings per share. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and can be adopted on either a fully retrospective or modified retrospective basis. The Company adopted ASU 2020-06 on January 1, 2022, electing the modified retrospective transition method that allows for a cumulative-effect adjustment in the period of adoption. As a result of adopting the guidance, the Company is no longer separating the convertible instruments into debt and equity components, and is instead accounting for convertible instruments as entirely debt.

The impact of the Company’s adoption under the modified retrospective basis required a cumulative effect adjustment to opening net assets for the remaining unamortized discount on the $403 in aggregate principal amount of unsecured convertible notes outstanding as of March 31, 2022, and a requirement for the Company to calculate diluted earnings per share using the if-converted method which assumes full share settlement for the aggregate value of the $403 in aggregate principal amount of unsecured convertible notes. The Company’s adoption of this guidance did not have a material impact on the Company’s financial position, results of operations or cash flows. See Notes 5 and 10 for additional information on the effects of the adoption of ASU 2020-06.

In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848),” which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform. In January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848), which expanded the scope of Topic 848 to include derivative instruments impacted by discounting transition. ASU 2020-04 and ASU 2021-01 are effective for all entities through December 31, 2022. The expedients and exceptions provided by the amendments do not apply to contract modifications and hedging relationships entered into or evaluated after December 31, 2022, except for hedging transactions as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which deferred the sunset day of this guidance to December 31, 2024. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.
v3.22.4
AGREEMENTS
 12 Months Ended
Dec. 31, 2022
Investment Company [Abstract]  
AGREEMENTS
3. AGREEMENTS

Investment Advisory and Management Agreement
 
The Company is party to an investment advisory and management agreement (the “investment advisory and management agreement”) with Ares Capital Management. Subject to the overall supervision of the Company’s board of directors, Ares Capital Management provides investment advisory and management services to the Company. For providing these services, Ares Capital Management receives fees from the Company consisting of a base management fee, a fee based on the Company’s net investment income (“income based fee”) and a fee based on the Company’s net capital gains (“capital gains incentive fee”). The investment advisory and management agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party.
 
Effective June 21, 2019, in connection with the Company’s board of directors’ approval of the modification of the asset coverage requirement applicable to senior securities from 200% to 150%, the investment advisory and management agreement was amended to reduce the Company’s annual base management fee rate from 1.5% to 1.0% on all assets financed using leverage over 1.0x debt to equity. For all assets financed using leverage up to 1.0x debt to equity, the annual base management fee rate remains at 1.5%. The base management fee is based on the average value of the Company’s total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) at the end of the two most recently
completed calendar quarters and is calculated by applying the applicable fee rate. The base management fee is payable quarterly in arrears. See Note 5 for additional information.
 
The income based fee is calculated and payable quarterly in arrears based on the Company’s pre-incentive fee net investment income, as defined in the investment advisory and management agreement, for the quarter. Pre-incentive fee net investment income means interest income, dividend income and any other income (including any other fees such as commitment, origination, structuring, diligence and consulting fees or other fees that the Company receives from portfolio companies but excluding fees for providing managerial assistance) accrued during the calendar quarter, minus operating expenses for the quarter (including the base management fee, any expenses payable under the administration agreement, and any interest expense and dividends paid on any outstanding preferred stock, but excluding the income based fee and capital gains incentive fee accrued under GAAP). Pre-incentive fee net investment income includes, in the case of investments with a deferred income feature such as market discount, debt instruments with PIK interest, preferred stock with PIK dividends and zero coupon securities, accrued income that the Company has not yet received in cash. The Company’s investment adviser is not under any obligation to reimburse the Company for any part of the income based fees it received that was based on accrued income that the Company never actually received.
 
Pre-incentive fee net investment income does not include any realized capital gains, realized capital losses, unrealized capital appreciation, unrealized capital depreciation or income tax expense related to realized gains and losses. Because of the structure of the income based fee, it is possible that the Company may pay such fees in a quarter where the Company incurs a loss. For example, if the Company earns pre-incentive fee net investment income in excess of the hurdle rate (as defined below) for a quarter, the Company will pay the applicable income based fee even if the Company has incurred a loss in that quarter due to realized and/or unrealized capital losses.
 
Pre-incentive fee net investment income, expressed as a rate of return on the value of the Company’s net assets (defined as total assets less indebtedness and before taking into account any income based fees and capital gains incentive fees payable during the period) at the end of the immediately preceding calendar quarter, is compared to a fixed “hurdle rate” of 1.75% per quarter. If market credit spreads rise, the Company may be able to invest its funds in debt instruments that provide for a higher return, which may increase the Company’s pre-incentive fee net investment income and make it easier for the Company’s investment adviser to surpass the fixed hurdle rate and receive an income based fee based on such net investment income. To the extent the Company has retained pre-incentive fee net investment income that has been used to calculate the income based fee, it is also included in the amount of the Company’s total assets (other than cash and cash equivalents but including assets purchased with borrowed funds) used to calculate the base management fee.

The Company pays its investment adviser an income based fee with respect to the Company’s pre-incentive fee net investment income in each calendar quarter as follows:
 
•No income based fee in any calendar quarter in which the Company’s pre-incentive fee net investment income does not exceed the hurdle rate;

•100% of the Company’s pre-incentive fee net investment income with respect to that portion of such pre-incentive fee net investment income, if any, that exceeds the hurdle rate but is less than 2.1875% in any calendar quarter. The Company refers to this portion of its pre-incentive fee net investment income (which exceeds the hurdle rate but is less than 2.1875%) as the “catch-up” provision. The “catch-up” is meant to provide the Company’s investment adviser with 20% of the pre-incentive fee net investment income as if a hurdle rate did not apply if this net investment income exceeded 2.1875% in any calendar quarter; and

•20% of the amount of the Company’s pre-incentive fee net investment income, if any, that exceeds 2.1875% in any calendar quarter.
 
These calculations are adjusted for any share issuances or repurchases during the quarter.

The capital gains incentive fee is determined and payable in arrears as of the end of each calendar year (or, upon termination of the investment advisory and management agreement, as of the termination date) and is calculated at the end of each applicable year by subtracting (a) the sum of the Company’s cumulative aggregate realized capital losses and aggregate unrealized capital depreciation from (b) the Company’s cumulative aggregate realized capital gains, in each case calculated from October 8, 2004 (the date the Company completed its initial public offering). Realized capital gains and losses include gains and losses on investments and foreign currencies, gains and losses on extinguishment of debt and from other assets, as well as any income tax and other expenses related to cumulative aggregate realized gains and losses. If such amount is positive at the end of such year, then the capital gains incentive fee for such year is equal to 20% of such amount, less the aggregate
amount of capital gains incentive fees paid in all prior years. If such amount is negative, then there is no capital gains incentive fee for such year.
 
The cumulative aggregate realized capital gains are calculated as the sum of the differences, if positive, between (a) the net sales price of each investment in the Company’s portfolio when sold and (b) the accreted or amortized cost basis of such investment.
 
The cumulative aggregate realized capital losses are calculated as the sum of the amounts by which (a) the net sales price of each investment in the Company’s portfolio when sold is less than (b) the accreted or amortized cost basis of such investment.
 
The aggregate unrealized capital depreciation is calculated as the sum of the differences, if negative, between (a) the valuation of each investment in the Company’s portfolio as of the applicable capital gains incentive fee calculation date and (b) the accreted or amortized cost basis of such investment.
 
Notwithstanding the foregoing, if the Company is required by GAAP to record an investment at its fair value as of the time of acquisition instead of at the actual amount paid for such investment by the Company (including, for example, as a result of the application of the asset acquisition method of accounting), then solely for the purposes of calculating the capital gains incentive fee, the “accreted or amortized cost basis” of an investment shall be an amount (the “Contractual Cost Basis”) equal to (1) (x) the actual amount paid by the Company for such investment plus (y) any amounts recorded in the Company’s financial statements as required by GAAP that are attributable to the accretion of such investment plus (z) any other adjustments made to the cost basis included in the Company’s financial statements, including PIK interest or additional amounts funded (net of repayments) minus (2) any amounts recorded in the Company’s financial statements as required by GAAP that are attributable to the amortization of such investment, whether such calculated Contractual Cost Basis is higher or lower than the fair value of such investment (as determined in accordance with GAAP) at the time of acquisition.
  
The base management fees, income based fees and capital gains incentive fees for the years ended December 31, 2022, 2021 and 2020 were as follows:

For the Years Ended December 31,
202220212020
Base management fees$305 $253 $217 
Income based fees$252 $225 $184 
Capital gains incentive fees(1)$(101)$161 $(58)
________________________________________

(1)Calculated in accordance with GAAP as discussed below.

There was no capital gains incentive fee payable to the Company’s investment adviser as calculated under the investment advisory and management agreement for the years ended December 31, 2022 and 2020. The capital gains incentive fee payable to the Company’s investment adviser as calculated under the investment advisory and management agreement for the year ended December 31, 2021 was $26. In addition, in accordance with GAAP, the Company had cumulatively accrued a capital gains incentive fee of $35 as of December 31, 2022. GAAP requires that the capital gains incentive fee accrual consider the cumulative aggregate unrealized capital appreciation in the calculation, as a capital gains incentive fee would be payable if such unrealized capital appreciation were realized, even though such unrealized capital appreciation is not permitted to be considered in calculating the fee actually payable under the investment advisory and management agreement. This GAAP accrual is calculated using the aggregate cumulative realized capital gains and losses and aggregate cumulative unrealized capital depreciation included in the calculation of the capital gains incentive fee plus the aggregate cumulative unrealized capital appreciation, net of any expense associated with cumulative unrealized capital depreciation or appreciation. If such amount is positive at the end of a period, then GAAP requires the Company to record a capital gains incentive fee equal to 20% of such cumulative amount, less the aggregate amount of actual capital gains incentive fees paid or capital gains incentive fees accrued under GAAP in all prior periods. As of December 31, 2022, the Company has paid capital gains incentive fees since inception totaling $133. The resulting accrual for any capital gains incentive fee under GAAP in a given period may result in an additional expense if such cumulative amount is greater than in the prior period or a reversal of previously recorded expense if such cumulative amount is less than in the prior period. If such cumulative amount is negative, then there is no accrual. There can be no assurance that such unrealized capital appreciation will be realized in the future.
Cash payment of any income based fees and capital gains incentive fees otherwise earned by the Company’s investment adviser is deferred if during the most recent four full calendar quarter period ending on or prior to the date such payment is to be made the sum of (a) the aggregate distributions to the Company’s stockholders and (b) the change in net assets (defined as total assets less indebtedness and before taking into account any income based fees and capital gains incentive fees payable during the period) is less than 7.0% of the Company’s net assets (defined as total assets less indebtedness) at the beginning of such period. These calculations will be adjusted for any share issuances or repurchases. Any income based fees and capital gains incentive fees deferred for payment are carried over for payment in subsequent calculation periods to the extent such fees are payable under the terms of the investment advisory and management agreement. Pursuant to the terms under the investment advisory and management agreement, as of December 31, 2022, payment of $81 of the income based fees earned by the Company’s investment adviser during the year ended December 31, 2022 has been deferred.
 
The services of all investment professionals and staff of the Company’s investment adviser, when and to the extent engaged in providing investment advisory and management services to the Company, and routine overhead expenses of such personnel allocable to such services, are provided and paid for by the Company’s investment adviser. Under the investment
advisory and management agreement, the Company bears all other costs and expenses of its operations and transactions, including, but not limited to, those relating to: organization; calculation of the Company’s net asset value (including, but not limited to, the cost and expenses of any independent third-party valuation firm); expenses incurred by the Company’s investment adviser payable to third parties, including agents, consultants or other advisers, in monitoring the Company’s financial and legal affairs and in monitoring the Company’s investments (including the cost of consultants hired to develop information technology systems designed to monitor the Company’s investments) and performing due diligence on the Company’s prospective portfolio companies; interest payable on indebtedness, if any, incurred to finance the Company’s investments (including payments to third party vendors for financial information services); offerings of the Company’s common stock and other securities; investment advisory and management fees; administration fees; fees payable to third parties, including agents, consultants or other advisers, relating to, or associated with, evaluating and making investments in portfolio companies, regardless of whether such transactions are ultimately consummated; transfer agent and custodial fees; registration fees; listing fees; taxes; independent directors’ fees and expenses; costs of preparing and filing reports or other documents with the SEC; the costs of any reports, proxy statements or other notices to stockholders, including printing costs; to the extent the Company is covered by any joint insurance policies, the Company’s allocable portion of the insurance premiums for such policies; direct costs and expenses of administration, including auditor and legal costs; and all other expenses incurred by the Company or its administrator in connection with administering the Company’s business as described in more detail under “Administration Agreement” below.

Administration Agreement
 
The Company is party to an administration agreement, referred to herein as the “administration agreement”, with its administrator, Ares Operations. Pursuant to the administration agreement, Ares Operations furnishes the Company with office equipment and clerical, bookkeeping and record keeping services at the Company’s office facilities. Under the administration agreement, Ares Operations also performs, or oversees the performance of, the Company’s required administrative services, which include, among other things, providing assistance in accounting, legal, compliance, operations, technology and investor relations, being responsible for the financial records that the Company is required to maintain and preparing reports to its stockholders and reports filed with the SEC. In addition, Ares Operations assists the Company in determining and publishing its net asset value, assists the Company in providing managerial assistance to its portfolio companies, oversees the preparation and filing of the Company’s tax returns and the printing and dissemination of reports to its stockholders, and generally oversees the payment of its expenses and the performance of administrative and professional services rendered to the Company by others. Payments under the administration agreement are equal to an amount based upon its allocable portion of Ares Operations’ overhead and other expenses (including travel expenses) incurred by Ares Operations in performing its obligations under the administration agreement, including the Company’s allocable portion of the compensation, rent and other expenses of certain of its officers (including the Company’s chief compliance officer, chief financial officer, chief accounting officer, general counsel, secretary, treasurer and assistant treasurer) and their respective staffs. The administration agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party.
 
For the years ended December 31, 2022, 2021 and 2020, the Company incurred $11, $15 and $13, respectively, in administrative fees. As of December 31, 2022 and 2021, $2 and $4, respectively, in administrative fees were unpaid and included in “accounts payable and other liabilities” in the accompanying consolidated balance sheet.
v3.22.4
INVESTMENTS
 12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
INVESTMENTS
4. INVESTMENTS

As of December 31, 2022 and 2021, investments consisted of the following:

 As of December 31,
 20222021
Amortized Cost(1)Fair ValueAmortized Cost(1)Fair Value
First lien senior secured loans(2)$9,684 $9,373 $9,583 $9,459 
Second lien senior secured loans4,218 3,934 4,614 4,524 
Subordinated certificates of the SDLP(3)1,274 1,249 987 987 
Senior subordinated loans1,163 1,079 896 890 
Preferred equity2,095 2,027 1,547 1,561 
Ivy Hill Asset Management, L.P.(4)2,048 2,201 781 936 
Other equity1,561 1,917 1,402 1,652 
Total$22,043 $21,780 $19,810 $20,009 
________________________________________

(1)The amortized cost represents the original cost adjusted for any accretion of discounts, amortization of premiums and PIK interest or dividends.
    
(2)First lien senior secured loans include certain loans that the Company classifies as “unitranche” loans. The total amortized cost and fair value of the loans that the Company classified as “unitranche” loans were $4,983 and $4,841 respectively, as of December 31, 2022, and $5,210 and $5,163, respectively, as of December 31, 2021.

(3)The proceeds from these certificates were applied to co-investments with Varagon and its clients to fund first lien senior secured loans to 22 and 19 different borrowers as of December 31, 2022 and 2021, respectively.

(4)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.
  
The Company uses Global Industry Classification Standards for classifying the industry groupings of its portfolio companies. The industrial and geographic compositions of the Company’s portfolio at fair value as of December 31, 2022 and 2021 were as follows:
 As of December 31,
20222021
Industry
Software & Services21.9 %21.9 %
Diversified Financials(1)13.3 7.5 
Health Care Services10.8 10.8 
Commercial & Professional Services9.5 9.2 
Investment Funds and Vehicles(2)6.0 5.2 
Insurance Services5.2 5.8 
Power Generation4.5 4.5 
Consumer Services4.2 3.9 
Consumer Durables & Apparel3.7 4.4 
Capital Goods3.6 4.8 
Automobiles & Components2.6 4.6 
Media & Entertainment2.1 2.2 
Food & Beverage2.0 2.2 
Energy2.0 1.9 
Pharmaceuticals, Biotechnology & Life Sciences1.7 1.9 
Other6.9 9.2 
Total100.0 %100.0 %
________________________________________

(1)Includes the Company’s investment in IHAM.

(2)Includes the Company’s investment in the SDLP, which had made first lien senior secured loans to 22 and 19 different borrowers as of December 31, 2022 and 2021, respectively. The portfolio companies in the SDLP are in industries similar to the companies in the Company’s portfolio.

 As of December 31,
20222021
Geographic Region
West(1)24.5 %26.6 %
Midwest23.9 27.9 
Southeast17.1 17.2 
Mid-Atlantic14.9 14.5 
Northeast(2)14.0 9.4 
International5.6 4.4 
Total100.0 %100.0 %
________________________________________

(1)Includes the Company’s investment in the SDLP, which represented 5.7% and 4.9% of the total investment portfolio at fair value as of December 31, 2022 and 2021, respectively.

(2)Includes the Company’s investment in IHAM, which represented 10.1% and 4.7% of the total investment portfolio at fair value as of December 31, 2022 and 2021, respectively.
As of December 31, 2022 and 2021, loans on non-accrual status represented 1.7% of the total investments at amortized cost (or 1.1% at fair value) and 0.8% at amortized cost (or 0.5% at fair value), respectively.

Senior Direct Lending Program

The Company has established a joint venture with Varagon to make certain first lien senior secured loans, including certain stretch senior and unitranche loans, primarily to U.S. middle-market companies. Varagon was formed in 2013 as a lending platform by American International Group, Inc. and other partners. The joint venture is called the SDLP. In July 2016, the Company and Varagon and its clients completed the initial funding of the SDLP. The SDLP may generally commit and hold individual loans of up to $450. The Company and other accounts managed by the Company’s investment adviser and its affiliates may directly co-invest with the SDLP to accommodate larger transactions. The SDLP is capitalized as transactions are completed and all portfolio decisions and generally all other decisions in respect of the SDLP must be approved by an investment committee of the SDLP consisting of representatives of the Company and Varagon (with approval from a representative of each required).

The Company provides capital to the SDLP in the form of subordinated certificates (the “SDLP Certificates”), and Varagon and its clients provide capital to the SDLP in the form of senior notes, intermediate funding notes and SDLP Certificates. As of December 31, 2022 and 2021, the Company and a client of Varagon owned 87.5% and 12.5%, respectively, of the outstanding SDLP Certificates.

As of December 31, 2022 and 2021, the Company and Varagon and its clients had agreed to make capital available to the SDLP of $6,150 and $6,150, respectively, in the aggregate, of which $1,444 and $1,444, respectively, is to be made available from the Company. The Company will continue to provide capital to the SDLP in the form of SDLP Certificates, and Varagon and its clients will provide capital to the SDLP in the form of senior notes, intermediate funding notes and SDLP Certificates. This capital will only be committed to the SDLP upon approval of transactions by the investment committee of the SDLP as discussed above. Below is a summary of the funded capital and unfunded capital commitments of the SDLP.

 As of December 31,
20222021
Total capital funded to the SDLP(1)$5,127 $4,168 
Total capital funded to the SDLP by the Company(1)$1,274 $987 
Total unfunded capital commitments to the SDLP(2)$294 $262 
Total unfunded capital commitments to the SDLP by the Company(2)$68 $62 
___________________________________________________________________________
(1)At principal amount.

(2)These commitments to fund delayed draw loans have been approved by the investment committee of the SDLP and will be funded if and when conditions to funding such delayed draw loans are met.

The SDLP Certificates pay a coupon equal to LIBOR plus 8.0% and also entitle the holders thereof to receive a portion of the excess cash flow from the loan portfolio, after expenses, which may result in a return to the holders of the SDLP Certificates that is greater than the stated coupon. The SDLP Certificates are junior in right of payment to the senior notes and intermediate funding notes.

The amortized cost and fair value of the SDLP Certificates held by the Company were $1,274 and $1,249, respectively, as of December 31, 2022 and $987 and $987, respectively, as of December 31, 2021. The Company’s yield on its investment in the SDLP Certificates at amortized cost and fair value was 13.5% and 13.8%, respectively, as of December 31, 2022, and 13.5% and 13.5%, respectively, as of December 31, 2021. The interest income from the Company’s investment in the SDLP Certificates and capital structuring service and other fees earned for the years ended December 31, 2022, 2021 and 2020 were as follows:

For the Years Ended December 31,
202220212020
Interest income
$146 $138 $127 
Capital structuring service and other fees
$22 $22 $23 
As of December 31, 2022 and 2021, the SDLP’s portfolio was comprised entirely of first lien senior secured loans to U.S. middle-market companies and were in industries similar to the companies in the Company’s portfolio. As of December 31, 2022, one of the loans was on non-accrual status. As of December 31, 2021, none of the loans were on non-accrual status. Below is a summary of the SDLP’s portfolio.
As of December 31,
20222021
Total first lien senior secured loans(1)(2)$5,174 $4,194 
Largest loan to a single borrower(1)$377 $342 
Total of five largest loans to borrowers(1)$1,631 $1,540 
Number of borrowers in the SDLP22 19 
Commitments to fund delayed draw loans(3)$294 $262 
___________________________________________________________________________

(1)At principal amount.

(2)First lien senior secured loans include certain loans that the SDLP classifies as “unitranche” loans. As of December 31, 2022 and 2021, the total principal amount of loans in the SDLP portfolio that the SDLP classified as “unitranche” loans was $4,108 and $2,908, respectively.

(3)As discussed above, these commitments have been approved by the investment committee of the SDLP.

Pursuant to Rule 4-08(g) of Regulation S-X, selected financial information of the SDLP, in conformity with GAAP, as of December 31, 2022 and 2021 and for the years ended December 31, 2022, 2021 and 2020 are presented below:

As of December 31,
20222021
Selected Balance Sheet Information:
Investments at fair value (amortized cost of $5,166 and $4,193, respectively)
$4,958 $4,127 
Other assets150 84 
Total assets$5,108 $4,211 
Senior notes$3,538 $2,939 
Intermediate funding notes132 101 
Other liabilities110 51 
Total liabilities3,780 3,091 
Subordinated certificates and members’ capital1,328 1,120 
Total liabilities and members’ capital$5,108 $4,211 

For the Years Ended December 31,
202220212020
Selected Statement of Operations Information:
Total investment income$365 $282 $302 
Interest expense155 91 113 
Other expenses20 18 16 
Total expenses175 109 129 
Net investment income190 173 173 
Net realized and unrealized gains (losses) on investments(147)70 (64)
Net increase in members’ capital resulting from operations$43 $243 $109 
Ivy Hill Asset Management, L.P.

Ivy Hill Asset Management, L.P. (“IHAM”), a wholly owned portfolio company of the Company, is an asset management services company and an SEC-registered investment adviser. As of December 31, 2022, IHAM had assets under management of approximately $13.1 billion. As of December 31, 2022, IHAM managed 21 vehicles and served as the sub-manager/sub-servicer for one other vehicle (these vehicles managed or sub-managed/sub-serviced by IHAM are referred to as the “IHAM Vehicles”). IHAM earns fee income from managing the IHAM Vehicles and has also invested in certain of these vehicles as part of its business strategy. The amortized cost of IHAM’s total investments as of December 31, 2022 and 2021 was $2,370 and $966, respectively. For the years ended December 31, 2022, 2021 and 2020, IHAM had management and incentive fee income of $48, $31 and $28, respectively, and other investment-related income of $189, $91 and $75, respectively.

 The amortized cost and fair value of the Company’s investment in IHAM as of December 31, 2022 and 2021 were as follows:

As of December 31,
20222021
Amortized CostFair ValueAmortized CostFair Value
Subordinated debt
$500 $500 $16 $16 
Equity investment
1,548 1,701 765920 
Total Company’s investment in IHAM$2,048 $2,201 $781 $936 


The interest income and dividend income that the Company earned from IHAM for the years ended December 31, 2022, 2021 and 2020 were as follows:

For the Years Ended December 31,
202220212020
Interest income
$23 $3 $6 
Dividend income
$205 $93 $74 

From time to time, IHAM or certain IHAM Vehicles may purchase investments from, or sell investments to, the Company. For any such sales or purchases by the IHAM Vehicles to or from the Company, the IHAM Vehicle must obtain approval from third parties unaffiliated with the Company or IHAM, as applicable. During the year ended December 31, 2022, 2021 and 2020, IHAM or certain of the IHAM Vehicles purchased $3,358, $2,407 and $940, respectively, of loans from the Company. For the years ended December 31, 2022, 2021 and 2020, the Company recognized $20, $7 and $21, respectively, of net realized losses from these sales. During the year ended December 31, 2022, the Company purchased $27 of investments from certain IHAM Vehicles.

IHAM is party to an administration agreement, referred to herein as the “IHAM administration agreement,” with Ares Operations. Pursuant to the IHAM administration agreement, Ares Operations provides IHAM with, among other things, office facilities, equipment, clerical, bookkeeping and record keeping services, services relating to the marketing and sale of interests in vehicles managed by IHAM, services of, and oversight of, custodians, depositories, accountants, attorneys, underwriters and such other persons in any other capacity deemed to be necessary. Under the IHAM administration agreement, IHAM reimburses Ares Operations for all of the actual costs associated with such services, including Ares Operations’ allocable portion of the compensation, rent and other expenses of its officers, employees and respective staff in performing its obligations under the IHAM administration agreement.

Selected Financial Information

Pursuant to Rule 4-08(g) of Regulation S-X, selected financial information of IHAM, in conformity with GAAP, as of December 31, 2022 and 2021 and for the years ended December 31, 2022, 2021 and 2020 are presented below.

In conformity with GAAP, IHAM is required to consolidate entities in which IHAM has a direct or indirect controlling financial interest based on either a variable interest model or voting interest model, which include certain of the IHAM Vehicles (the “Consolidated IHAM Vehicles”). As such, for GAAP purposes only, IHAM consolidates (a) entities in which it holds a
majority voting interest or has majority ownership and control over the operational, financial and investing decisions of that entity and (b) entities that it concludes are variable interest entities in which IHAM has more than insignificant economic interest and power to direct the activities that most significantly impact the entities, and for which IHAM is deemed to be the primary beneficiary.

When IHAM consolidates an IHAM Vehicle for GAAP purposes only, IHAM reflects the assets, liabilities, revenues and expenses of the Consolidated IHAM Vehicles on a gross basis, including the economic interests held by third-party investors in the Consolidated IHAM Vehicles as debt obligations, subordinated notes or non-controlling interests, in the consolidated IHAM financials below. All of the revenues earned by IHAM as the investment manager of the IHAM Consolidated Vehicles are eliminated in GAAP consolidation. However, because the eliminated amounts are earned from and funded by third-party investors, the GAAP consolidation of an IHAM Vehicle does not impact the net income or loss attributable to IHAM. As a result, the Company believes an assessment of IHAM's business and the impact to the Company’s investment in IHAM is best viewed on a stand-alone basis as reflected in the first column in the tables below.

As of December 31, 2022
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Balance Sheet Information:
Assets
Investments at fair value(2)$2,340 $8,973 $(2,315)$8,998 
Cash and cash equivalents5 499 — 504 
Other assets55 94 (51)98 
Total assets$2,400 $9,566 $(2,366)$9,600 
Liabilities
Debt$308 $6,968 $— $7,276 
Subordinated note from ARCC500 — — 500 
Subordinated notes(3)— 1,374 (1,093)281 
Other liabilities17 129 (15)131 
Total liabilities825 8,471 (1,108)8,188 
Equity
Contributed capital1,547 — — 1,547 
Accumulated earnings61 — — 61 
Net unrealized losses on investments and foreign currency transactions(33)— — (33)
Non-controlling interests in Consolidated IHAM Vehicles(4)
— 1,095 (1,258)(163)
Total equity1,575 1,095 (1,258)1,412 
Total liabilities and equity$2,400 $9,566 $(2,366)$9,600 
As of December 31, 2021
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Balance Sheet Information:
Assets
Investments at fair value(2)$966 $5,510 $(927)$5,549 
Cash and cash equivalents8 416 — 424 
Other assets12 79 (8)83 
Total assets$986 $6,005 $(935)$6,056 
Liabilities
Debt$125 $4,656 $— $4,781 
Subordinated note from ARCC16 — — 16 
Subordinated notes(3)— 983 (700)283 
Other liabilities2 98 (9)91 
Total liabilities143 5,737 (709)5,171 
Equity
Contributed capital765 — — 765 
Accumulated earnings78 — — 78 
Net unrealized gains on investments and foreign currency transactions— — — — 
Non-controlling interests in Consolidated IHAM Vehicles(4)
— 268(226)42 
Total equity843 268 (226)885 
Total liabilities and equity$986 $6,005 $(935)$6,056 
________________________________________

(1)Consolidated for GAAP purposes only.

(2)The determination of such fair value is determined in accordance with IHAM’s valuation procedures (separate and apart from the Company’s valuation process described elsewhere herein). The amortized cost of IHAM’s total investments as of December 31, 2022 and 2021 was $2,370 and $966, respectively. The amortized cost of the total investments of IHAM on a consolidated basis as of December 31, 2022 and 2021 was $9,306 and $5,588, respectively.

(3)Subordinated notes generally represent the most junior capital in certain of the Consolidated IHAM Vehicles and effectively represent equity in such vehicles.

(4)Non-controlling interests in Consolidated IHAM Vehicles includes net unrealized depreciation in the Consolidated IHAM Vehicles of $309 and $30 as of December 31, 2022 and 2021, respectively.
For the Year Ended December 31, 2022
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$188 $594 $(185)$597 
Management fees and other income49 7 (46)10 
Total revenues237 601 (231)607 
Expenses
Interest expense35 261 — 296 
Distributions to subordinated notes— 130 (95)35 
Management fees and other expenses14 56 (46)24 
Total expenses49 447 (141)355 
Net operating income188 154 (90)252 
Net realized losses on investments and other transactions— (12)— (12)
Net unrealized losses on investments and other transactions(33)(279)31 (281)
Total net realized and unrealized losses on investments and other transactions(33)(291)31 (293)
Net income (loss)155 (137)(59)(41)
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles— (137)(59)(196)
Net income attributable to Ivy Hill Asset Management, L.P.$155 $— $— $155 

For the Year Ended December 31, 2021
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$97 $285 $(93)$289 
Management fees and other income31 7 (27)11 
Total revenues128 292 (120)300 
Expenses
Interest expense5 99 — 104 
Distributions to subordinated notes— 135 (101)34 
Management fees and other expenses12 38 (27)23 
Total expenses17 272 (128)161 
Net operating income111 20 8 139 
Net realized gains (losses) on investments and other transactions(6)80 (28)46 
Net unrealized gains on investments and other transactions18 91 (15)94 
Total net realized and unrealized gains on investments and other transactions12 171 (43)140 
Net income123 191 (35)279 
Less: Net income attributable to non-controlling interests in Consolidated IHAM Vehicles— 191 (35)156 
Net income attributable to Ivy Hill Asset Management, L.P. $123 $— $— $123 
For the Year Ended December 31, 2020
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$79 $288 $(78)$289 
Management fees and other income28 7 (26)9 
Total revenues107 295 (104)298 
Expenses
Interest expense8 119 — 127 
Distributions to subordinated notes— 113 (79)34 
Management fees and other expenses12 33 (26)19 
Total expenses20 265 (105)180 
Net operating income87 30 1 118 
Net realized gains (losses) on investments and other transactions(4)50 — 46 
Net unrealized losses on investments and other transactions(7)(26)6 (27)
Total net realized and unrealized gains (losses) on investments and other transactions(11)24 6 19 
Net income 76 54 7 137 
Less: Net income attributable to non-controlling interests in Consolidated Funds— 54 7 61 
Net income attributable to Ivy Hill Asset Management, L.P.$76 $— $— $76 
________________________________________

(1)Consolidated for GAAP purposes only.
v3.22.4
DEBT
 12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
DEBT
5. DEBT

In accordance with the Investment Company Act, the Company is allowed to borrow amounts such that its asset coverage, calculated pursuant to the Investment Company Act, is at least 150% after such borrowing. The Company’s asset coverage requirement applicable to senior securities was reduced from 200% to 150% effective June 21, 2019. As of December 31, 2022, the aggregate principal amount outstanding of the senior securities issued by the Company was $12,245 and the Company’s asset coverage was 177%.
The Company’s outstanding debt as of December 31, 2022 and 2021 was as follows:

 As of December 31, 
 2022 2021 
Total Aggregate Principal Amount Committed/ Outstanding (1)Principal Amount OutstandingCarrying ValueTotal Aggregate Principal Amount Committed/ Outstanding (1)Principal Amount OutstandingCarrying Value
Revolving Credit Facility$4,843 (2)$2,246 $2,246 $4,232 (2)$1,507 $1,507 
Revolving Funding Facility1,775 800 800 1,525 762 762 
SMBC Funding Facility800 (3)451 451 800 (3)401 401 
BNP Funding Facility300 245 245 300 — — 
2022 Convertible Notes— — — 388 388 388 (4)
2024 Convertible Notes403 403 399 (4)403 403 395 (4)
2023 Notes750 750 750 (5)750 750 748 (5)
2024 Notes900 900 898 (6)900 900 897 (6)
March 2025 Notes600 600 597 (7)600 600 596 (7)
July 2025 Notes1,250 1,250 1,258 (8)1,250 1,250 1,260 (8)
January 2026 Notes1,150 1,150 1,144 (9)1,150 1,150 1,143 (9)
July 2026 Notes1,000 1,000 991 (10)1,000 1,000 988 (10)
2027 Notes500 500 494 (11)— — — 
2028 Notes1,250 1,250 1,247 (12)1,250 1,250 1,246 (12)
2031 Notes700 700 690 (13)700 700 689 (13)
Total$16,221 $12,245 $12,210 $15,248 $11,061 $11,020 

________________________________________

(1)Represents the total aggregate amount committed or outstanding, as applicable, under such instrument. Borrowings under the committed Revolving Credit Facility, Revolving Funding Facility, SMBC Funding Facility and BNP Funding Facility (each as defined below) are subject to borrowing base and other restrictions.

(2)Provides for a feature that allows the Company, under certain circumstances, to increase the size of the Revolving Credit Facility (as defined below) to a maximum of $7,265.

(3)Provides for a feature that allows ACJB (as defined below), under certain circumstances, to increase the size of the SMBC Funding Facility (as defined below) to a maximum of $1,000.

(4)Represents the aggregate principal amount outstanding of the 2024 Convertible Notes (as defined below). As of December 31, 2022, the total unamortized debt issuance costs and the unamortized discount for the 2024 Convertible Notes (as defined below) was $4. As of December 31, 2021, the total unamortized debt issuance costs and the unamortized discount for the 2022 Convertible Notes and the 2024 Convertible Notes (each as defined below) were $0 and $8, respectively. In February 2022, the Company repaid in full the 2022 Convertible Notes upon their maturity.

(5)Represents the aggregate principal amount outstanding of the 2023 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the 2023 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $0 and $2, respectively.

(6)Represents the aggregate principal amount outstanding of the 2024 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2024 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unamortized discount was $2 and $3, respectively.

(7)Represents the aggregate principal amount outstanding of the March 2025 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the March 2025 Notes. As of
December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $3 and $4, respectively.

(8)Represents the aggregate principal amount outstanding of the July 2025 Notes (as defined below), less unamortized debt issuance costs and the net unaccreted premium recorded upon the issuance of the July 2025 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unaccreted premium was $8 and $10, respectively.

(9)Represents the aggregate principal amount outstanding of the January 2026 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the January 2026 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $6 and $7, respectively.

(10)Represents the aggregate principal amount outstanding of the July 2026 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the July 2026 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $9 and $12, respectively.

(11)Represents the aggregate principal amount outstanding of the 2027 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2027 Notes. As of December 31, 2022, the total unamortized debt issuance costs and the net unamortized discount was $6.

(12)Represents the aggregate principal amount outstanding of the 2028 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2028 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unamortized discount was $3 and $4, respectively.

(13)Represents the aggregate principal amount outstanding of the 2031 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the 2031 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $10 and $11, respectively.

 The weighted average stated interest rate and weighted average maturity, both on aggregate principal amount outstanding, of all the Company’s outstanding debt as of December 31, 2022 were 4.2% and 3.6 years, respectively, and as of December 31, 2021 were 3.1% and 4.2 years, respectively.
 
Revolving Credit Facility
 
The Company is party to a senior secured revolving credit facility (as amended and restated, the “Revolving Credit Facility”), that allows the Company to borrow up to $4,843 at any one time outstanding. The Revolving Credit Facility consists of a $1,087 term loan tranche and a $3,756 revolving tranche. For $1,009 of the term loan tranche, the stated maturity date is March 31, 2027. For $28 of the term loan tranche, the stated maturity date is March 31, 2026. For the remaining $50 of the term loan tranche, the stated maturity date is March 30, 2025. For $3,499 of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2026 and March 31, 2027, respectively. For $107 of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2025 and March 31, 2026, respectively. For the remaining $150 of the revolving tranche, the end of the revolving period and the stated maturity date are March 30, 2024 and March 30, 2025, respectively. The Revolving Credit Facility also provides for a feature that allows the Company, under certain circumstances, to increase the overall size of the Revolving Credit Facility to a maximum of $7,265. The Revolving Credit Facility generally requires payments of interest at the end of each Secured Overnight Financing Rate (“SOFR”) interest period, but no less frequently than quarterly, on SOFR based loans, and monthly payments of interest on other loans. Subsequent to the end of the respective revolving periods and prior to the respective stated maturity dates, the Company is required to repay the relevant outstanding principal amounts under both the term loan tranche and revolving tranche on a monthly basis in an amount equal to 1/12th of the outstanding principal amount at the end of the respective revolving periods.

Under the Revolving Credit Facility, the Company is required to comply with various covenants, reporting requirements and other customary requirements for similar revolving credit facilities, including, without limitation, covenants related to: (a) limitations on the incurrence of additional indebtedness and liens, (b) limitations on certain investments, (c) limitations on certain restricted payments, (d) maintaining a certain minimum stockholders’ equity, (e) maintaining a ratio of total assets (less total liabilities not representing indebtedness) to total indebtedness of the Company and its consolidated subsidiaries (subject to certain exceptions) of not less than 1.5:1.0, (f) limitations on pledging certain unencumbered assets, and
(g) limitations on the creation or existence of agreements that prohibit liens on certain properties of the Company and certain of its subsidiaries. These covenants are subject to important limitations and exceptions that are described in the documents governing the Revolving Credit Facility. Amounts available to borrow under the Revolving Credit Facility (and the incurrence of certain other permitted debt) are also subject to compliance with a borrowing base that applies different advance rates to different types of assets (based on their value as determined pursuant to the Revolving Credit Facility) that are pledged as collateral. As of December 31, 2022, the Company was in compliance in all material respects with the terms of the Revolving Credit Facility.
 
As of December 31, 2022 and 2021, there was $2,246 and $1,507 outstanding, respectively, under the Revolving Credit Facility. The Revolving Credit Facility also provides for a sub-limit for the issuance of letters of credit for up to an aggregate amount of $250 with the ability to increase by an incremental $50 on an uncommitted basis. As of December 31, 2022 and 2021, the Company had $86 and $68, respectively, in letters of credit issued through the Revolving Credit Facility. The amount available for borrowing under the Revolving Credit Facility is reduced by any letters of credit issued. As of December 31, 2022, there was $2,511 available for borrowing (net of letters of credit issued) under the Revolving Credit Facility, subject to borrowing base restrictions.
 
Since March 31, 2022, the interest rate charged on the Revolving Credit Facility is based on SOFR plus a credit spread adjustment of 0.10% (or an alternate rate of interest for certain loans, commitments and/or other extensions of credit denominated in Sterling, Canadian Dollars, Euros and certain other foreign currencies plus a spread adjustment, if applicable) and an applicable spread of either 1.75% or 1.875% or an “alternate base rate” (as defined in the agreements governing the Revolving Credit Facility) plus an applicable spread of 0.75% or 0.875%, in each case, determined monthly based on the total amount of the borrowing base relative to the sum of (i) the greater of (a) the aggregate amount of revolving exposure and term loans outstanding under the Revolving Credit Facility and (b) 85% of the total commitments of the Revolving Credit Facility (or, if higher, the total revolving exposure) plus (ii) other debt, if any, secured by the same collateral as the Revolving Credit Facility. The Revolving Credit Facility allows for borrowings to be made using one, three or six month SOFR. Prior to March 31, 2022, the interest rate charged on the Revolving Credit Facility was based on LIBOR (or an alternate rate of interest for certain loans, commitments and/or other extensions of credit denominated in Sterling, Canadian Dollars, Euros and certain other foreign currencies) plus an applicable spread of either 1.75% or 1.875% or an “alternate base rate” (as defined in the agreements governing the Revolving Credit Facility) plus an applicable spread of 0.75% or 0.875%, in each case, determined monthly based on the total amount of the borrowing base relative to the sum of (i) the greater of (a) the aggregate amount of revolving exposure and term loans outstanding under the Revolving Credit Facility and (b) 85% of the total commitments of the Revolving Credit Facility (or, if higher, the total revolving exposure) plus (ii) other debt, if any, secured by the same collateral as the Revolving Credit Facility. As of December 31, 2022, the one, three and six month SOFR was 4.36%, 4.59% and 4.78%, respectively. As of December 31, 2022, the applicable spread in effect was 1.75%. In addition to the stated interest expense on the Revolving Credit Facility, the Company is required to pay a commitment fee of 0.375% per annum on any unused portion of the Revolving Credit Facility. The Company is also required to pay a letter of credit fee of either 2.00% or 2.125% per annum on letters of credit issued, determined monthly based on the total amount of the borrowing base relative to the total commitments of the Revolving Credit Facility and other debt, if any, secured by the same collateral as the Revolving Credit Facility.

In December 2017, in connection with $395 of the term loan tranche of the Revolving Credit Facility, the Company entered into a three-year interest rate swap agreement to mitigate its exposure to adverse fluctuations in interest rates for a total notional amount of $395, which matured on January 4, 2021.

The Revolving Credit Facility is secured by certain assets in the Company’s portfolio and excludes investments held by Ares Capital CP under the Revolving Funding Facility, those held by ACJB under the SMBC Funding Facility and those held by AFB under the BNP Funding Facility, each as described below, and certain other investments.

For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the Revolving Credit Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$71 $21 $43 
Credit facility fees10 17 7 
Amortization of debt issuance costs8 7 7 
Total interest and credit facility fees expense$89 $45 $57 
Cash paid for interest expense$62 $20 $41 
Average stated interest rate4.11 %2.14 %2.58 %
Average outstanding balance$1,701 $1,014 $1,576 
 
Revolving Funding Facility
 
The Company and the Company’s consolidated subsidiary, Ares Capital CP Funding LLC (“Ares Capital CP”), are party to a revolving funding facility (as amended, the “Revolving Funding Facility”), that allows Ares Capital CP to borrow up to $1,775 at any one time outstanding. The Revolving Funding Facility is secured by all of the assets held by, and the membership interest in, Ares Capital CP. The end of the reinvestment period and the stated maturity date for the Revolving Funding Facility are December 29, 2024 and December 29, 2026, respectively.
 
Amounts available to borrow under the Revolving Funding Facility are subject to a borrowing base that applies different advance rates to different types of assets held by Ares Capital CP. Ares Capital CP is also subject to limitations with respect to the loans securing the Revolving Funding Facility, including restrictions on sector concentrations, loan size, payment frequency and status, collateral interests and loans with fixed rates, as well as restrictions on portfolio company leverage, all of which may also affect the borrowing base and therefore amounts available to borrow. The Company and Ares Capital CP are also required to comply with various covenants, reporting requirements and other customary requirements for similar facilities. These covenants are subject to important limitations and exceptions that are described in the agreements governing the Revolving Funding Facility. As of December 31, 2022, the Company and Ares Capital CP were in compliance in all material respects with the terms of the Revolving Funding Facility.
 
As of December 31, 2022 and 2021, there was $800 and $762 outstanding, respectively, under the Revolving Funding Facility. Since June 30, 2022, the interest rate charged on the Revolving Funding Facility is based on SOFR plus a credit spread adjustment of 0.10% or a “base rate” (as defined in the agreements governing the Revolving Funding Facility) plus an applicable spread of 1.90% per annum. From December 29, 2021 to June 29, 2022, the interest rate charged on the Revolving Funding Facility is based on one month LIBOR plus 1.90% per annum or a “base rate” (as defined in the agreements governing the Revolving Funding Facility) plus 1.00% per annum. Prior to December 29, 2021, the interest rate charged on the Revolving Funding Facility was based on one month LIBOR plus 2.00% per annum or a “base rate” plus 1.00% per annum. Since December 29, 2021, Ares Capital CP is also required to pay a commitment fee of between 0.50% and 1.25% per annum depending on the size of the unused portion of the Revolving Funding Facility. Prior to and including December 29, 2021, Ares Capital CP was required to pay a commitment fee of between 0.50% and 1.50% per annum depending on the size of the unused portion of the Revolving Funding Facility.
  
For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the Revolving Funding Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$31 $15 $20 
Credit facility fees5 6 5 
Amortization of debt issuance costs3 4 4 
Total interest and credit facility fees expense$39 $25 $29 
Cash paid for interest expense$29 $17 $19 
Average stated interest rate3.81 %2.33 %2.54 %
Average outstanding balance$820 $643 $761 
SMBC Funding Facility
 
The Company and the Company’s consolidated subsidiary, Ares Capital JB Funding LLC (“ACJB”), are party to a revolving funding facility (as amended, the “SMBC Funding Facility”), with ACJB, as the borrower, and Sumitomo Mitsui Banking Corporation, as the administrative agent and collateral agent, that allows ACJB to borrow up to $800 at any one time outstanding. The SMBC Funding Facility also provides for a feature that allows ACJB, subject to receiving certain consents, to increase the overall size of the SMBC Funding Facility to $1,000. The SMBC Funding Facility is secured by all of the assets held by ACJB. The end of the reinvestment period and the stated maturity date for the SMBC Funding Facility are May 28, 2024 and May 28, 2026, respectively. The reinvestment period and the stated maturity date are both subject to two one-year extensions by mutual agreement.
 
Amounts available to borrow under the SMBC Funding Facility are subject to a borrowing base that applies an advance rate to assets held by ACJB. ACJB is also subject to limitations with respect to the loans securing the SMBC Funding Facility, including restrictions on sector concentrations, loan size, payment frequency and status, collateral interests and loans with fixed rates, as well as restrictions on portfolio company leverage, all of which may also affect the borrowing base and therefore amounts available to borrow. The Company and ACJB are also required to comply with various covenants, reporting requirements and other customary requirements for similar facilities. These covenants are subject to important limitations and exceptions that are described in the documents governing the SMBC Funding Facility. As of December 31, 2022, the Company and ACJB were in compliance in all material respects with the terms of the SMBC Funding Facility.
 
As of December 31, 2022 and 2021, there was $451 and $401 outstanding, respectively, under the SMBC Funding Facility. The interest rate charged on the SMBC Funding Facility is based on an applicable spread of either 1.75% or 2.00% over one month LIBOR or 0.75% or 1.00% over a “base rate” (as defined in the agreements governing the SMBC Funding Facility), in each case, determined monthly based on the amount of the average borrowings outstanding under the SMBC Funding Facility. As of December 31, 2022, the applicable spread in effect was 1.75%. ACJB is required to pay a commitment fee of between 0.50% and 1.00% per annum depending on the size of the unused portion of the SMBC Funding Facility.
 
For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the SMBC Funding Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$15 $4 $10 
Credit facility fees2 6 1 
Amortization of debt issuance costs2 3 3 
Total interest and credit facility fees expense$19 $13 $14 
Cash paid for interest expense$14 $4 $10 
Average stated interest rate3.58 %2.05 %2.36 %
Average outstanding balance$414 $191 $390 
    
BNP Funding Facility
 
The Company and the Company’s consolidated subsidiary, ARCC FB Funding LLC (“AFB”), are party to a revolving funding facility (as amended, the “BNP Funding Facility”) with AFB, as the borrower, and BNP Paribas, as the administrative agent and lender, that allows AFB to borrow up to $300 at any one time outstanding. The BNP Funding Facility is secured by all of the assets held by AFB. The end of the reinvestment period and the stated maturity date for the BNP Funding Facility are June 11, 2023 and June 11, 2025, respectively. The reinvestment period and the stated maturity date are both subject to a one-year extension by mutual agreement. See Note 15 for a subsequent event relating to the BNP Funding Facility.
 
Amounts available to borrow under the BNP Funding Facility are subject to a borrowing base that applies an advance rate to assets held by AFB. AFB is also subject to limitations with respect to the loans securing the BNP Funding Facility, including restrictions on sector concentrations, loan size, payment frequency and status, collateral interests and loans with fixed rates, as well as restrictions on portfolio company leverage, all of which may also affect the borrowing base and therefore amounts available to borrow. The Company and AFB are also required to comply with various covenants, reporting requirements and other customary requirements for similar facilities. These covenants are subject to important limitations and
exceptions that are described in the documents governing the BNP Funding Facility. As of December 31, 2022, the Company and AFB were in compliance in all material respects with the terms of the BNP Funding Facility.
 
As of December 31, 2022, there was $245 outstanding under the BNP Funding Facility. As of December 31, 2021, there were no amounts outstanding under the BNP Funding Facility. Since June 29, 2021, the interest rate charged on the BNP Funding Facility is based on three month LIBOR, or a “base rate” (as defined in the agreements governing the BNP Funding Facility) plus a margin of (i) 1.80% during the reinvestment period and (ii) 2.30% following the reinvestment period. Prior to June 29, 2021, the interest rate charged on the BNP Funding Facility was based on three month LIBOR (subject to a floor of 0.45%), or a “base rate” (as defined in the agreements governing the BNP Funding Facility) plus a margin that generally ranged between 2.65% and 3.15% (depending on the types of assets such advances relate to), with a weighted average margin floor for all classes of advances of (i) 2.75% during the reinvestment period and (ii) 3.25% following the reinvestment period. As of December 31, 2022, the applicable spread in effect was 1.80%. AFB is required to pay a commitment fee of between 0.00% and 1.25% per annum depending on the size of the unused portion of the BNP Funding Facility.

For the years ended December 31, 2022 and 2021, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the BNP Funding Facility were as follows:

For the Years Ended December 31,
 20222021
Stated interest expense$5 $1 
Credit facility fees1 4 
Amortization of debt issuance costs1 1 
Total interest and credit facility fees expense$7 $6 
Cash paid for interest expense$3 $1 
Average stated interest rate4.71 %3.46 %
Average outstanding balance$110 $15 

Convertible Unsecured Notes
 
The Company has issued $403 in aggregate principal amount of unsecured convertible notes that mature on March 1, 2024 (the “2024 Convertible Notes”) unless previously converted or repurchased in accordance with its terms. The Company does not have the right to redeem the 2024 Convertible Notes prior to maturity. The 2024 Convertible Notes bear interest at a rate of 4.625% per annum, payable semi-annually.
 
In certain circumstances, assuming the conversion date below has not already passed, the 2024 Convertible Notes will be convertible into cash, shares of the Company’s common stock or a combination of cash and shares of its common stock, at the Company’s election, at the conversion rate (listed below as of December 31, 2022) subject to customary anti-dilution adjustments and the requirements of the indenture (the “2024 Convertible Notes Indenture”). Prior to the close of business on the business day immediately preceding the conversion date (listed below), holders may convert their 2024 Convertible Notes only under certain circumstances set forth in the 2024 Convertible Notes Indenture. On or after the conversion date until the close of business on the second scheduled trading day immediately preceding the maturity date for the 2024 Convertible Notes, holders may convert their 2024 Convertible Notes at any time. In addition, if the Company engages in certain corporate events as described in the 2024 Convertible Notes Indenture, holders of the 2024 Convertible Notes may require the Company to repurchase for cash all or part of the 2024 Convertible Notes at a repurchase price equal to 100% of the principal amount of the 2024 Convertible Notes to be repurchased, plus accrued and unpaid interest through, but excluding, the required repurchase date.
 
Certain key terms related to the convertible features for the 2024 Convertible Notes as of December 31, 2022 are listed below.
2024 Convertible Notes
Conversion premium15.0 %
Closing stock price at issuance$17.29 
Closing stock price dateMarch 5, 2019
Conversion price (1)$19.68 
Conversion rate (shares per one thousand dollar principal amount)(1)50.8028 
Conversion dateDecember 1, 2023
________________________________________

(1)Represents conversion price and conversion rate, as applicable, as of December 31, 2022, taking into account any applicable de minimis adjustments that will be made on the conversion date.
 
As of December 31, 2022, the principal amount of the 2024 Convertible Notes exceeded the value of the underlying shares multiplied by the per share closing price of the Company’s common stock.
 
The 2024 Convertible Notes Indenture contains certain covenants, including covenants requiring the Company to comply with Section 18(a)(1)(A) as modified by Section 61(a) of the Investment Company Act, or any successor provisions, and to provide financial information to the holders of the 2024 Convertible Notes under certain circumstances. These covenants are subject to important limitations and exceptions that are described in the 2024 Convertible Notes Indenture. As of December 31, 2022, the Company was in compliance in all material respects with the terms of the 2024 Convertible Notes Indenture.
 
The 2024 Convertible Notes as well as any other convertible notes outstanding during the periods presented (collectively referred to as the “Convertible Unsecured Notes”) are accounted for in accordance with ASC 470-20, Debt. Upon conversion of the 2024 Convertible Notes, the Company intends to pay the outstanding principal amount in cash and to the extent that the conversion value exceeds the principal amount, the Company has the option to pay in cash or shares of the Company’s common stock (or a combination of cash and shares) in respect of the excess amount, subject to the requirements of the 2024 Convertible Notes Indenture. The Company has determined that the embedded conversion options in the 2024 Convertible Notes are not required to be separately accounted for as a derivative under GAAP. In accounting for the Convertible Unsecured Notes, the Company estimated at the time of issuance separate debt and equity components for the Convertible Unsecured Notes. An original issue discount equal to the equity components of the Convertible Unsecured Notes was recorded in “capital in excess of par value” in the accompanying consolidated balance sheet. Additionally, the issuance costs associated with the Convertible Unsecured Notes were allocated to the debt and equity components in proportion to the allocation of the proceeds and accounted for as debt issuance costs and equity issuance costs, respectively. As a result of adopting ASU 2020-06 on January 1, 2022, the Company is no longer separating the 2024 Convertible Notes into debt and equity components, and is instead accounting for the 2024 Convertible Notes entirely as debt.
 
In connection with the issuance of the 2024 Convertible Notes, the Company incurred debt issuance costs of $4. The 2024 Convertible Notes were issued at a discount. The Company records interest expense comprised of both stated interest expense as well as accretion of any original issue discount or debt issuance costs.

As of December 31, 2022, the components of the carrying value of the 2024 Convertible Notes, the stated interest rate and the effective interest rate were as follows:
2024 Convertible Notes
Principal amount of debt$403 
Original issue discount, net of accretion(1)
Debt issuance costs, net of amortization(3)
Carrying value of debt$399 
Stated interest rate4.625 %
Effective interest rate(1)5.10 %
________________________________________
(1)The effective interest rate of the 2024 Convertible Notes is equal to the stated interest rate plus the accretion of original issue discount and amortization of debt issuance costs.

In February 2022, the Company repaid in full the $388 in aggregate principal amount of unsecured convertible notes (the “2022 Convertible Notes”) upon their maturity, resulting in a realized loss on the extinguishment of debt of $48. The 2022 Convertible Notes bore interest at a rate of 4.60% per year, payable semi-annually.

For the years ended December 31, 2022, 2021 and 2020, the components of interest expense and cash paid for interest expense for the 2024 Convertible Notes, as well as any other convertible notes outstanding during the periods presented were as follows.
 For the Years Ended December 31,
 202220212020
Stated interest expense$20 $33 $33 
Amortization of debt issuance costs1 3 3 
Accretion of original issue discount2 6 5 
Total interest expense$23 $42 $41 
Cash paid for interest expense$26 $34 $33 

Unsecured Notes
 
The Company has issued certain unsecured notes (each issuance of which is referred to herein using the “defined term” set forth under the “Unsecured Notes” column of the table below and collectively referred to as the “Unsecured Notes”), that pay interest semi-annually and all principal amounts are due upon maturity. Each of the Unsecured Notes may be redeemed in whole or in part at any time at the Company’s option at a redemption price equal to par plus a “make whole” premium, if applicable, as determined pursuant to the indentures governing each of the Unsecured Notes, plus any accrued and unpaid interest. Certain key terms related to the features for the Unsecured Notes as of December 31, 2022 are listed below.


Unsecured Notes		Aggregate Principal Amount IssuedInterest RateOriginal Issuance DateMaturity Date
2023 Notes$750 3.500%August 10, 2017February 10, 2023
2024 Notes$900 4.200%June 10, 2019June 10, 2024
March 2025 Notes$600 4.250%January 11, 2018March 1, 2025
July 2025 Notes$1,250 3.250%January 15, 2020July 15, 2025
January 2026 Notes$1,150 3.875%July 15, 2020January 15, 2026
July 2026 Notes$1,000 2.150%January 13, 2021July 15, 2026
2027 Notes $500 2.875%January 13, 2022June 15, 2027
2028 Notes$1,250 2.875%June 10, 2021June 15, 2028
2031 Notes$700 3.200%November 4, 2021November 15, 2031

For the years ended December 31, 2022, 2021 and 2020, the components of interest expense and cash paid for interest expense for the Unsecured Notes, as well as any other unsecured notes outstanding during the periods presented are listed below.
 For the Years Ended December 31,
 202220212020
Stated interest expense$269 $234 $168 
Amortization of debt issuance costs15 11 6 
Net (amortization) accretion of original issue premium/discount(6)(4)1 
Accretion of purchase discount— — 1 
Total interest expense$278 $241 $176 
Cash paid for interest expense$268 $234 $140 
 
The Unsecured Notes contain certain covenants, including covenants requiring the Company to comply with Section 18(a)(1)(A) as modified by Section 61(a) of the Investment Company Act, or any successor provisions, and to provide
financial information to the holders of such notes under certain circumstances. These covenants are subject to important limitations and exceptions set forth in the indentures governing such notes. As of December 31, 2022, the Company was in compliance in all material respects with the terms of the respective indentures governing each of the Unsecured Notes.
 
The 2024 Convertible Notes and the Unsecured Notes are the Company’s senior unsecured obligations and rank senior in right of payment to any future indebtedness that is expressly subordinated in right of payment to the 2024 Convertible Notes and the Unsecured Notes; equal in right of payment to the Company’s existing and future unsecured indebtedness that is not expressly subordinated; effectively junior in right of payment to any of its secured indebtedness (including existing unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness; and structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company’s subsidiaries, financing vehicles or similar facilities.
v3.22.4
DERIVATIVE INSTRUMENTS
 12 Months Ended
Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
DERIVATIVE INSTRUMENTS
6. DERIVATIVE INSTRUMENTS

The Company enters into forward currency contracts from time to time to help mitigate the impact that an adverse change in foreign exchange rates would have on the value of the Company’s investments denominated in foreign currencies. As of December 31, 2022 and 2021, the counterparty to these forward currency contracts was Royal Bank of Canada and Truist Financial Corporation, respectively.

In December 2017, in connection with $395 of the term loan tranche of the Revolving Credit Facility, the Company entered into a three-year interest rate swap agreement to mitigate its exposure to adverse fluctuations in interest rates for a total notional amount of $395, which matured on January 4, 2021. Under the interest rate swap agreement, the Company paid a fixed interest rate of 2.06% and received a floating rate based on the prevailing one-month LIBOR plus a spread of 1.75%.

Certain information related to the Company’s derivative instruments as of December 31, 2022 and 2021 is presented below.
    
 As of December 31, 2022
Derivative InstrumentNotional
Amount		Maturity DateGross Amount of Recognized AssetsGross Amount of Recognized LiabilitiesBalance Sheet
Location of Net Amounts
 Foreign currency forward contract CAD264 1/27/2023$195 $(196) Accounts payable and other liabilities
 Foreign currency forward contract CAD242 1/18/2023178 (179) Accounts payable and other liabilities
 Foreign currency forward contract €158 1/27/2023159 (169) Accounts payable and other liabilities
 Foreign currency forward contract £125 1/27/2023145 (151) Accounts payable and other liabilities
 Foreign currency forward contract NZD59 1/27/202334 (37) Accounts payable and other liabilities
 Foreign currency forward contract  CAD 17 1/27/202312 (12)Accounts payable and other liabilities
Total$723 $(744)
 As of December 31, 2021
Derivative InstrumentNotional
Amount		Maturity DateGross Amount of Recognized AssetsGross Amount of Recognized LiabilitiesBalance Sheet
Location of Net Amounts
Foreign currency forward contractCAD309 1/28/2022$240 $(245)Accounts payable and other liabilities
Foreign currency forward contractCAD209 1/19/2022163 (165)Accounts payable and other liabilities
Foreign currency forward contract€153 1/28/2022172 (174)Accounts payable and other liabilities
Foreign currency forward contract£95 1/28/2022126 (129)Accounts payable and other liabilities
Foreign currency forward contractCAD2 1/28/20221 (1)Accounts payable and other liabilities
Total$702 $(714)

Net realized gains (losses) on derivative instruments recognized by the Company for the years ended December 31, 2022, 2021 and 2020 is in the following location in the consolidated statements of operations:

For the Years Ended December 31,
Derivative InstrumentStatement Location202220212020
Interest rate swapNet realized gains (losses) from foreign currency and other transactions$— $— $(6)
Foreign currency forward contractNet realized gains (losses) from foreign currency and other transactions62 13 (9)
Total$62 $13 $(15)

Net unrealized gains (losses) on derivative instruments recognized by the Company for the years ended December 31, 2022, 2021 and 2020 is in the following location in the consolidated statements of operations:

For the Years Ended December 31,
Derivative InstrumentStatement Location202220212020
Interest rate swapNet unrealized gains (losses) from foreign currency and other transactions$— $— $1 
Foreign currency forward contractNet unrealized gains (losses) from foreign currency and other transactions(9)(14)(1)
Total$(9)$(14)$— 
v3.22.4
COMMITMENTS AND CONTINGENCIES
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS AND CONTINGENCIES
7. COMMITMENTS AND CONTINGENCIES

Investment Commitments

The Company has various commitments to fund investments in its portfolio as described below. As of December 31, 2022 and 2021, the Company had the following commitments to fund various revolving and delayed draw senior secured and subordinated loans, including commitments to fund which are at (or substantially at) the Company’s discretion:
 As of December 31,
 20222021
Total revolving and delayed draw loan commitments $2,916 $2,733 
Less: funded commitments(526)(352)
Total unfunded commitments2,390 2,381 
Less: commitments substantially at discretion of the Company— — 
Less: unavailable commitments due to borrowing base or other covenant restrictions(13)(4)
Total net adjusted unfunded revolving and delayed draw loan commitments$2,377 $2,377 
    
Included within the total revolving and delayed draw loan commitments as of December 31, 2022 and 2021 were delayed draw loan commitments totaling $1,229 and $1,273, respectively. The Company’s commitment to fund delayed draw loans is triggered upon the satisfaction of certain pre-negotiated terms and conditions. Generally, the most significant and uncertain term requires the borrower to satisfy a specific use of proceeds covenant. The use of proceeds covenant typically requires the borrower to use the additional loans for the specific purpose of a permitted acquisition or permitted investment, for example. In addition to the use of proceeds covenant, the borrower is generally required to satisfy additional negotiated covenants (including specified leverage levels).

Also included within the total revolving loan commitments as of December 31, 2022 were commitments to issue up to $366 in letters of credit through a financial intermediary on behalf of certain portfolio companies. As of December 31, 2022, the Company had $46 in letters of credit issued and outstanding under these commitments on behalf of the portfolio companies. For all these letters of credit issued and outstanding, the Company would be required to make payments to third parties if the portfolio companies were to default on their related payment obligations. All of the $46 in letters of credit are due to expire in 2023.
 
The Company also has commitments to co-invest in the SDLP for the Company’s portion of the SDLP’s commitments to fund delayed draw loans to certain portfolio companies of the SDLP. See Note 4 for more information.
 
As of December 31, 2022 and 2021, the Company was party to subscription agreements to fund equity investments in private equity investment partnerships as follows:
 As of December 31,
 20222021
Total private equity commitments$120 $111 
Less: funded private equity commitments(69)(68)
Total unfunded private equity commitments51 43 
Less: private equity commitments substantially at discretion of the Company(51)(43)
Total net adjusted unfunded private equity commitments$— $— 
 
In the ordinary course of business, the Company may sell certain of its investments to third party purchasers. In particular, in connection with the sale of certain controlled portfolio company equity investments (as well as certain other sales) the Company has, and may continue to do so in the future, agreed to indemnify such purchasers for future liabilities arising from the investments and the related sale transaction. Such indemnification provisions have given rise to liabilities in the past and may do so in the future.

In addition, in the ordinary course of business, the Company may guarantee certain obligations in connection with its portfolio companies (in particular, certain controlled portfolio companies). Under these guarantee arrangements, payments may be required to be made to third parties if such guarantees are called upon or if the portfolio companies were to default on their related obligations, as applicable.

Lease Commitments

The Company is obligated under a number of operating leases pursuant to which it is leasing office facilities from third parties with remaining terms ranging from approximately one to four years. For certain of its operating leases, the Company had previously entered into subleases. The components of operating lease expense for the years ended December 31, 2022, 2021 and 2020 were as follows:
For the Years Ended December 31,
202220212020
Operating lease costs$9 $10 $17 
Less: sublease income(9)(9)(16)
Total operating lease costs (1)$— $1 $1 

________________________________________

(1)Total operating lease costs are incurred from office leases assumed as part of the Company’s acquisition of American Capital, Ltd.
Supplemental cash flow information related to operating leases for the years ended December 31, 2022 and 2021 were as follows:
For the Years Ended December 31,
20222021
Cash paid for amounts included in the measurement of operating lease liabilities$16 $16 
Operating ROU assets obtained in exchange for operating lease liabilities$9 $11 

Supplemental balance sheet information as of December 31, 2022 and 2021 related to operating leases were as follows:
As of December 31,
20222021
Operating lease ROU assets$20 $27 
Operating lease liabilities$31 $43 
Weighted average remaining lease term3.1 years3.7 years
Weighted average discount rate4.2 %3.1%
 
The following table shows future minimum lease payments under the Company’s operating leases and a reconciliation to the operating lease liability as of December 31, 2022:

Amount
2023$16 
20246 
20256 
20266 
  Total lease payments34 
Less imputed interest(3)
  Total operating lease liabilities$31 

The following table shows future expected rental payments to be received under the Company’s subleases where the Company is the sublessor as of December 31, 2022:

Amount
2023$9 
20244 
20254 
20264 
Total$21 
COMMITMENTS AND CONTINGENCIES
7. COMMITMENTS AND CONTINGENCIES

Investment Commitments

The Company has various commitments to fund investments in its portfolio as described below. As of December 31, 2022 and 2021, the Company had the following commitments to fund various revolving and delayed draw senior secured and subordinated loans, including commitments to fund which are at (or substantially at) the Company’s discretion:
 As of December 31,
 20222021
Total revolving and delayed draw loan commitments $2,916 $2,733 
Less: funded commitments(526)(352)
Total unfunded commitments2,390 2,381 
Less: commitments substantially at discretion of the Company— — 
Less: unavailable commitments due to borrowing base or other covenant restrictions(13)(4)
Total net adjusted unfunded revolving and delayed draw loan commitments$2,377 $2,377 
    
Included within the total revolving and delayed draw loan commitments as of December 31, 2022 and 2021 were delayed draw loan commitments totaling $1,229 and $1,273, respectively. The Company’s commitment to fund delayed draw loans is triggered upon the satisfaction of certain pre-negotiated terms and conditions. Generally, the most significant and uncertain term requires the borrower to satisfy a specific use of proceeds covenant. The use of proceeds covenant typically requires the borrower to use the additional loans for the specific purpose of a permitted acquisition or permitted investment, for example. In addition to the use of proceeds covenant, the borrower is generally required to satisfy additional negotiated covenants (including specified leverage levels).

Also included within the total revolving loan commitments as of December 31, 2022 were commitments to issue up to $366 in letters of credit through a financial intermediary on behalf of certain portfolio companies. As of December 31, 2022, the Company had $46 in letters of credit issued and outstanding under these commitments on behalf of the portfolio companies. For all these letters of credit issued and outstanding, the Company would be required to make payments to third parties if the portfolio companies were to default on their related payment obligations. All of the $46 in letters of credit are due to expire in 2023.
 
The Company also has commitments to co-invest in the SDLP for the Company’s portion of the SDLP’s commitments to fund delayed draw loans to certain portfolio companies of the SDLP. See Note 4 for more information.
 
As of December 31, 2022 and 2021, the Company was party to subscription agreements to fund equity investments in private equity investment partnerships as follows:
 As of December 31,
 20222021
Total private equity commitments$120 $111 
Less: funded private equity commitments(69)(68)
Total unfunded private equity commitments51 43 
Less: private equity commitments substantially at discretion of the Company(51)(43)
Total net adjusted unfunded private equity commitments$— $— 
 
In the ordinary course of business, the Company may sell certain of its investments to third party purchasers. In particular, in connection with the sale of certain controlled portfolio company equity investments (as well as certain other sales) the Company has, and may continue to do so in the future, agreed to indemnify such purchasers for future liabilities arising from the investments and the related sale transaction. Such indemnification provisions have given rise to liabilities in the past and may do so in the future.

In addition, in the ordinary course of business, the Company may guarantee certain obligations in connection with its portfolio companies (in particular, certain controlled portfolio companies). Under these guarantee arrangements, payments may be required to be made to third parties if such guarantees are called upon or if the portfolio companies were to default on their related obligations, as applicable.

Lease Commitments

The Company is obligated under a number of operating leases pursuant to which it is leasing office facilities from third parties with remaining terms ranging from approximately one to four years. For certain of its operating leases, the Company had previously entered into subleases. The components of operating lease expense for the years ended December 31, 2022, 2021 and 2020 were as follows:
For the Years Ended December 31,
202220212020
Operating lease costs$9 $10 $17 
Less: sublease income(9)(9)(16)
Total operating lease costs (1)$— $1 $1 

________________________________________

(1)Total operating lease costs are incurred from office leases assumed as part of the Company’s acquisition of American Capital, Ltd.
Supplemental cash flow information related to operating leases for the years ended December 31, 2022 and 2021 were as follows:
For the Years Ended December 31,
20222021
Cash paid for amounts included in the measurement of operating lease liabilities$16 $16 
Operating ROU assets obtained in exchange for operating lease liabilities$9 $11 

Supplemental balance sheet information as of December 31, 2022 and 2021 related to operating leases were as follows:
As of December 31,
20222021
Operating lease ROU assets$20 $27 
Operating lease liabilities$31 $43 
Weighted average remaining lease term3.1 years3.7 years
Weighted average discount rate4.2 %3.1%
 
The following table shows future minimum lease payments under the Company’s operating leases and a reconciliation to the operating lease liability as of December 31, 2022:

Amount
2023$16 
20246 
20256 
20266 
  Total lease payments34 
Less imputed interest(3)
  Total operating lease liabilities$31 

The following table shows future expected rental payments to be received under the Company’s subleases where the Company is the sublessor as of December 31, 2022:

Amount
2023$9 
20244 
20254 
20264 
Total$21 
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS
 12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
FAIR VALUE OF FINANCIAL INSTRUMENTS
8. FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company follows ASC 825-10, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASC 825-10”), which provides companies the option to report selected financial assets and liabilities at fair value. ASC 825-10 also establishes presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement attributes for similar types of assets and liabilities and to more easily understand the effect of the company’s choice to use fair value on its earnings. ASC 825-10 also requires entities to display the fair value of the selected assets and liabilities on the face of the balance sheet. The Company has not elected the ASC 825-10 option to report selected financial assets and liabilities at fair value. With the exception of the line items entitled “other assets” and “debt,” which are reported at amortized cost, the carrying value of all other assets and liabilities approximate fair value.
 
The Company also follows ASC 820-10, Fair Value Measurements and Disclosures (“ASC 820-10”), which expands the application of fair value accounting. ASC 820-10 defines fair value, establishes a framework for measuring fair value in
accordance with GAAP and expands disclosure of fair value measurements. ASC 820-10 determines fair value to be the price that would be received for an investment in a current sale, which assumes an orderly transaction between market participants on the measurement date. ASC 820-10 requires the Company to assume that the portfolio investment is sold in its principal market to market participants or, in the absence of a principal market, the most advantageous market, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal or most advantageous market that are independent, knowledgeable, and willing and able to transact. In accordance with ASC 820-10, the Company has considered its principal market as the market in which the Company exits its portfolio investments with the greatest volume and level of activity. ASC 820-10 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. In accordance with ASC 820-10, these inputs are summarized in the three broad levels listed below:

•Level 1—Valuations based on quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.

•Level 2—Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.

•Level 3—Valuations based on inputs that are unobservable and significant to the overall fair value measurement.
 
In addition to using the above inputs in investment valuations, the Company continues to employ the net asset valuation policy approved by the Company’s board of directors that is consistent with ASC 820-10 (see Note 2 for more information). Consistent with the Company’s valuation policy, the Company’s investment adviser evaluates the source of inputs, including any markets in which the Company’s investments are trading (or any markets in which securities with similar attributes are trading), in determining fair value. The Company’s valuation policy considers the fact that because there is not a readily available market value for most of the investments in the Company’s portfolio, the fair value of the investments must typically be determined using unobservable inputs.
 
    The Company’s portfolio investments (other than as described below in the following paragraph) are typically valued using two different valuation techniques. The first valuation technique is an analysis of the enterprise value (“EV”) of the portfolio company. Enterprise value means the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time. The primary method for determining EV uses a multiple analysis whereby appropriate multiples are applied to the portfolio company’s EBITDA (generally defined as net income before net interest expense, income tax expense, depreciation and amortization). EBITDA multiples are typically determined based upon review of market comparable transactions and publicly traded comparable companies, if any. The Company’s investment adviser also may employ other valuation multiples to determine EV, such as revenues or, in the case of certain portfolio companies in the power generation industry, kilowatt capacity. The second method for determining EV uses a discounted cash flow analysis whereby future expected cash flows of the portfolio company are discounted to determine a present value using estimated discount rates (typically a weighted average cost of capital based on costs of debt and equity consistent with current market conditions). The EV analysis is performed to determine the value of equity investments, the value of debt investments in portfolio companies where the Company has control or could gain control through an option or warrant security, and to determine if there is credit impairment for debt investments. If debt investments are credit impaired, an EV analysis may be used to value such debt investments; however, in addition to the methods outlined above, other methods such as a liquidation or wind-down analysis may be utilized to estimate enterprise value. The second valuation technique is a yield analysis, which is typically performed for non-credit impaired debt investments in portfolio companies where the Company does not own a controlling equity position. To determine fair value using a yield analysis, a current price is imputed for the investment based upon an assessment of the expected market yield for a similarly structured investment with a similar level of risk. In the yield analysis, the investment adviser considers the current contractual interest rate, the maturity and other terms of the investment relative to risk of the company and the specific investment. A key determinant of risk, among other things, is the leverage through the investment relative to the enterprise value of the portfolio company. As debt investments held by the Company are substantially illiquid with no active transaction market, the Company’s investment adviser depends on primary market data, including newly funded transactions, as well as secondary market data with respect to high yield debt instruments and syndicated loans, as inputs in determining the appropriate market yield, as applicable.
 
For other portfolio investments such as investments in the SDLP Certificates and IHAM, discounted cash flow analysis is the primary technique utilized to determine fair value. Expected future cash flows associated with the investment are discounted to determine a present value using a discount rate that reflects estimated market return requirements.
 
The following tables summarize the significant unobservable inputs the Company used to value the majority of its investments categorized within Level 3 as of December 31, 2022 and 2021. The tables are not intended to be all-inclusive, but instead capture the significant unobservable inputs relevant to the Company’s determination of fair values.

 As of December 31, 2022 
Unobservable Input
Asset CategoryFair ValuePrimary Valuation TechniquesInputEstimated Range
Weighted Average(1)
First lien senior secured loans$9,165 Yield analysisMarket yield
7.6% - 26.1%
12.3%
Second lien senior secured loans3,841 Yield analysisMarket yield
11.0% - 32.4%
14.9%
Subordinated certificates of the SDLP1,249 Discounted cash flow analysisDiscount rate
12.4% - 14.8%
13.5%
Senior subordinated loans1,021 Yield analysisMarket yield
8.0% - 16.3%
12.9%
Preferred equity2,023 EV market multiple analysisEBITDA multiple
2.6x - 40.6x
15.7x
Ivy Hill Asset Management, L.P.(2)2,201 Discounted cash flow analysisDiscount rate
12.9% - 25.7%
14.2%
Other equity1,861 EV market multiple analysisEBITDA multiple
2.1x - 52.1x
15.6x
Total investments$21,361 
________________________________________

(1)Unobservable inputs were weighted by the relative fair value of the investments.

(2)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.

 As of December 31, 2021 
Unobservable Input
Asset CategoryFair ValuePrimary Valuation TechniquesInputEstimated Range
Weighted Average(1)
First lien senior secured loans$9,456 Yield analysisMarket yield
2.0% - 16.5%
7.6%
Second lien senior secured loans4,432 Yield analysisMarket yield
6.8% - 22.9%
9.5%
Subordinated certificates of the SDLP987 Discounted cash flow analysisDiscount rate
8.8% - 9.7%
9.3%
Senior subordinated loans889 Yield analysisMarket yield
7.1% - 27.8%
11.5%
Preferred equity1,561 EV market multiple analysisEBITDA multiple
3.2x - 64.4x
16.5x
Ivy Hill Asset Management, L.P.(2)936 Discounted cash flow analysisDiscount rate
9.9% - 27.9%
16.3%
Other equity1,647 EV market multiple analysisEBITDA multiple
4.9x - 32.1x
14.9x
Total investments$19,908 
________________________________________

(1)Unobservable inputs were weighted by the relative fair value of the investments.

(2)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.

Changes in market yields, discount rates or EBITDA multiples, each in isolation, may change the fair value of certain of the Company’s investments. Generally, an increase in market yields or discount rates or decrease in EBITDA multiples may result in a decrease in the fair value of certain of the Company’s investments.
 
Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period. Additionally, the fair value of the Company’s investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that the Company may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly traded securities. If the
Company was required to liquidate a portfolio investment in a forced or liquidation sale, it could realize significantly less than the value at which the Company has recorded it.

In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the unrealized gains or losses reflected in the valuations currently assigned.
 
The following table presents fair value measurements of cash and cash equivalents, restricted cash, investments, derivatives and unfunded revolving and delayed draw loan commitments as of December 31, 2022:

 Fair Value Measurements Using
TotalLevel 1Level 2Level 3
Cash and cash equivalents$303 $303 $— $— 
Restricted cash$34 $34 $— $— 
Investments not measured at net asset value$21,775 $54 $360 $21,361 
Investments measured at net asset value(1)5 
 Total investments$21,780 
Derivatives$(21)$— $(21)$— 
Unfunded revolving and delayed draw loan commitments(2)$(57)$— $— $(57)
________________________________________

(1)Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet.

(2)The fair value of unfunded revolving and delayed draw loan commitments is included in “accounts payable and other liabilities” in the accompanying consolidated balance sheet.

The following table presents fair value measurements of cash and cash equivalents, restricted cash, investments, derivatives and unfunded revolving and delayed draw loan commitments as of December 31, 2021:

 Fair Value Measurements Using
TotalLevel 1Level 2Level 3
Cash and cash equivalents$372 $372 $— $— 
Restricted cash$114 $114 $— $— 
Investments not measured at net asset value$20,004 $— $96 $19,908 
Investments measured at net asset value (1)5 
  Total investments$20,009 
Derivatives$(12)$— $(12)$— 
Unfunded revolving and delayed draw loan commitments(2)$(20)$— $— $(20)
________________________________________

(1)Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet.

(2)The fair value of unfunded revolving and delayed draw loan commitments is included in “accounts payable and other liabilities” in the accompanying consolidated balance sheet.

The following table presents changes in investments that use Level 3 inputs as of and for the year ended December 31, 2022:
 As of and For the Year Ended December 31, 2022
Balance as of December 31, 2021$19,908 
Net realized gains24 
Net unrealized losses(461)
Purchases9,341 
Sales(4,685)
Repayments(3,009)
PIK interest and dividends312 
Net accretion of discount on securities12 
Net transfers in and/or out of Level 3(81)
Balance as of December 31, 2022$21,361 

Investments were transferred into and out of Level 3 during the year ended December 31, 2022. Transfers into and out of Level 3 were generally as a result of changes in the observability of significant inputs or available market data for certain portfolio companies.

As of December 31, 2022, the net unrealized depreciation on the investments that use Level 3 inputs was $216.

For the year ended December 31, 2022, the total amount of gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to the Company’s Level 3 assets still held as of December 31, 2022, and reported within the net unrealized gains (losses) on investments, foreign currency and other transactions in the Company’s consolidated statement of operations was $(471).
The following table presents changes in investments that use Level 3 inputs as of and for the year ended December 31, 2021:
As of and For the Year Ended December 31, 2021
Balance as of December 31, 2020$15,506 
Net realized gains258 
Net unrealized gains597 
Purchases13,704 
Sales(5,573)
Repayments(4,894)
PIK interest and dividends250 
Net accretion of discount on securities16 
Net transfers in and/or out of Level 344 
Balance as of December 31, 2021$19,908 

Investments were transferred into and out of Level 3 during the year ended December 31, 2021. Transfers into and out of Level 3 were generally as a result of changes in the observability of significant inputs or available market data for certain portfolio companies.

As of December 31, 2021, the net unrealized appreciation on the investments that use Level 3 inputs was $165.

For the year ended December 31, 2021, the total amount of gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to the Company’s Level 3 assets still held as of December 31, 2021, and reported within the net unrealized gains (losses) on investments, foreign currency and other transactions in the Company’s consolidated statement of operations was $649.
The following are the carrying and fair values of the Company’s debt obligations as of December 31, 2022 and 2021. Fair value is estimated by discounting remaining payments using applicable current market rates, which take into account changes in the Company’s marketplace credit ratings, or market quotes, if available.

 As of December 31,
 20222021
Carrying value(1)Fair value(4)Carrying value(1)Fair value(4)
Revolving Credit Facility$2,246 $2,246 $1,507 $1,507 
Revolving Funding Facility800 800 762 762 
SMBC Funding Facility451 451 401 401 
BNP Funding Facility245 245 — — 
2022 Convertible Notes (principal amount outstanding of $0 and $388, respectively)
— — 388 (2)433 
2024 Convertible Notes (principal amount outstanding of $403)
399 (2)428 395 (2)457 
2023 Notes (principal amount outstanding of $750)
750 (2)749 748 (2)768 
2024 Notes (principal amount outstanding of $900)
898 (2)873 897 (2)952 
March 2025 Notes (principal amount outstanding of $600)
597 (2)570 596 (2)637 
July 2025 Notes (principal amount outstanding of $1,250)
1,258 (2)1,157 1,260 (2)1,297 
January 2026 Notes (principal amount outstanding of $1,150)
1,144 (2)1,059 1,143 (2)1,213 
July 2026 Notes (principal amount outstanding of $1,000)
991 (2)850 988 (2)989 
2027 Notes (principal amount outstanding of $500 and $0, respectively)
494 (2)427 — (2)— 
2028 Notes (principal amount outstanding of $1,250)
1,247 (2)1,007 1,246 (2)1,248 
2031 Notes (principal amount outstanding of $700)
690 (2)516 689 (2)687 
Total$12,210 (3)$11,378 $11,020 (3)$11,351 
________________________________________

(1)The Revolving Credit Facility, the Revolving Funding Facility, the SMBC Funding Facility and the BNP Funding Facility carrying values are the same as the principal amounts outstanding.

(2)Represents the aggregate principal amount outstanding, less unamortized debt issuance costs and the net unaccreted/amortized discount or premium recorded upon issuance.

(3)Total principal amount of debt outstanding totaled $12,245 and $11,061 as of December 31, 2022 and 2021, respectively.

(4)The fair value of these debt obligations would be categorized as Level 2 under ASC 820-10.
v3.22.4
STOCKHOLDERS’ EQUITY
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
STOCKHOLDERS’ EQUITY
9. STOCKHOLDERS’ EQUITY

The Company may from time to time issue and sell shares of its common stock through public or “at the market” offerings. In connection with the issuance of its common stock, the Company issued and sold the following shares of common stock during the year ended December 31, 2022:


Issuances of Common Stock		Number of Shares IssuedGross ProceedsUnderwriting Fees/Offering ExpensesNet ProceedsAverage Offering Price Per Share(1)
Public offerings29.6$613.5 $29.2 $584.3 $19.74 (2)
“At the market” offerings20.6421.8 4.8 417.0 $20.52 
Total50.2$1,035.3 $34.0 $1,001.3 
________________________________________

(1)    Represents the gross offering price per share before deducting underwriting discounts and commissions and offering expenses.

(2)    11.2, 9.2 and 9.2 of the shares were sold to the underwriters for a price of $21.06 per share, $19.00 per share and $18.87 per share, respectively, which the underwriters were then permitted to sell at variable prices to the public. See Note 15 for a subsequent event relating to the Company’s public equity offerings.

“At the Market” Offerings

The Company is party to equity distribution agreements with several banks (the “Equity Distribution Agreements”). The Equity Distribution Agreements provide that the Company may from time to time issue and sell, by means of “at the market” offerings, up to $500 shares of its common stock. Subject to the terms and conditions of the Equity Distribution Agreements, sales of common stock, if any, may be made in transactions that are deemed to be “at the market” offerings as defined in Rule 415(a)(4) under the Securities Act of 1933, as amended. Under the Equity Distribution Agreements, common stock with an aggregate offering amount of $394 remained available for issuance as of December 31, 2022.

See Note 12 for information regarding shares of common stock issued or purchased in accordance with the Company’s dividend reinvestment plan.

Stock Repurchase Program

The Company is authorized under its stock repurchase program to purchase up to $500 in the aggregate of its outstanding common stock in the open market at certain thresholds below its net asset value per share, in accordance with the guidelines specified in Rule 10b-18 under the Securities Exchange Act of 1934, as amended. The timing, manner, price and amount of any share repurchases will be determined by the Company, in its sole discretion, based upon an evaluation of economic and market conditions, stock price, applicable legal and regulatory requirements and other factors. The stock repurchase program does not require the Company to repurchase any specific number of shares of common stock or any shares of common stock at all. Consequently, the Company cannot assure stockholders that any specific number of shares of common stock, if any, will be repurchased under the stock repurchase program. As of December 31, 2022, the expiration date of the stock repurchase program is February 15, 2023. The program may be suspended, extended, modified or discontinued at any time. As of December 31, 2022, there was $500 available for repurchases under the stock repurchase program.
During the years ended December 31, 2022 and 2021, the Company did not repurchase any shares of the Company’s common stock under the stock repurchase program.
v3.22.4
EARNINGS PER SHARE
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
10. EARNINGS PER SHARE

The following information sets forth the computations of basic and diluted net increase in stockholders’ equity resulting from operations per share for the years ended December 31, 2022, 2021 and 2020:

 For the Years Ended December 31,
 202220212020
Net increase in stockholders’ equity resulting from operations—basic$600 $1,567 $484 
Adjustment for interest expense on 2024 Convertible Notes(1)17 — — 
Net increase in stockholders’ equity resulting from operations—diluted$617 $1,567 $484 
Weighted average shares of common stock outstanding—basic498 446 424 
Assumed conversion of 2024 Convertible Notes20 — — 
Weighted average shares of common stock outstanding—diluted518 446 424 
Net increase in stockholders’ equity resulting from operations per share—basic$1.21 $3.51 $1.14 
Net increase in stockholders’ equity resulting from operations per share—diluted$1.19 $3.51 $1.14 
________________________________________

(1)    Includes the impact of income based fees.

Subsequent to the adoption of ASU 2020-06 on January 1, 2022, for the purpose of calculating diluted net increase in stockholders’ equity resulting from operations per share for the year ended December 31, 2022, the Company utilized the if-converted method which assumes full share settlement for the aggregate value of the 2024 Convertible Notes. Under the allowed modified retrospective method, diluted net increase in stockholders’ equity resulting from operations per share for prior periods were not restated to reflect the impact of ASU 2020-06. Prior to the adoption of ASU 2020-06, for the purpose of calculating diluted net increase in stockholders’ equity resulting from operations per share, the average closing price of the Company’s common stock for the year ended December 31, 2021 was more than the conversion price for the 2022 Convertible Notes outstanding as of December 31, 2021. For the year ended December 31, 2021, the average closing price of the Company’s common stock was less than the conversion price for the 2024 Convertible Notes outstanding as of December 31, 2021. For the year ended December 31, 2020, the average closing price of the Company’s common stock was less than the conversion price for all of the Convertible Unsecured Notes outstanding as of December 31, 2020. Therefore, the underlying shares for the intrinsic value of the embedded options in the Convertible Unsecured Notes outstanding during the year ended December 31, 2021 and 2020 had no impact on the computation of diluted net increase in stockholders’ equity resulting from operations per share.
v3.22.4
INCOME AND EXCISE TAXES
 12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
INCOME AND EXCISE TAXES
11. INCOME AND EXCISE TAXES

For U.S. federal income tax purposes, amounts distributed to the Company’s stockholders as dividends are reported as ordinary income, capital gains, or a combination thereof. Dividends paid per common share for the years ended December 31, 2022, 2021 and 2020 were taxable as follows (unaudited):

 For the Years Ended December 31,
 202220212020
Ordinary income(1)$1.80 $1.62 $1.60 
Capital gains0.07 — — 
Total(2)$1.87 $1.62 $1.60 
_______________________________________________________________________________

(1)For the years ended December 31, 2022, 2021 and 2020, ordinary income included dividend income of approximately $0.0582, $0.0461 and $0.0157 per share, respectively, that qualified to be taxed at the maximum capital gains rate and, in the case of certain eligible corporate shareholders, dividends that were eligible for the dividends received deduction.
(2)For the years ended December 31, 2022, 2021 and 2020, the percentage of total dividends paid that constituted interest-related dividends were 76.6%, 84.6% and 88.4%, respectively.

The following reconciles net increase in stockholders’ equity resulting from operations to taxable income for the years ended December 31, 2022, 2021 and 2020:

 For the Years Ended December 31,
 202220212020
 (Estimated)(1)
Net increase in stockholders’ equity resulting from operations$600 $1,567 $484 
Adjustments:
Net unrealized losses (gains) on investments, foreign currency and other transactions525 (586)144 
Income not currently taxable(2)(232)(223)(147)
Income for tax but not book90 162 133 
Expenses not currently deductible56 165 19 
Expenses for tax but not book— — (59)
Realized gain/loss differences(3)(101)(199)149 
Taxable income$938 $886 $723 
_______________________________________________________________________________

(1)The calculation of estimated 2022 U.S. federal taxable income is based on certain estimated amounts, including information received from third parties and, as a result, actual 2022 U.S. federal taxable income will not be finally determined until the Company’s 2022 U.S. federal tax return is filed in 2023 (and, therefore, such estimate is subject to change).

(2)Includes a reduction for dividend income from preferred equity that is not taxable until collected totaling $175, $91 and $67, respectively, net of dividend income collected of $71, $122 and $1, respectively, for the years ended December 31, 2022, 2021 and 2020, respectively.

(3)Certain realized gain/loss differences are the result of the realization of certain tax only capital losses on the investments and liabilities acquired in the acquisition of Allied Capital Corporation in April 2010 (the “Allied Acquisition”). Because the Allied Acquisition was a “tax-free” reorganization under the Code, realized losses for tax purposes can differ from GAAP. Note that unlike the Allied Acquisition, the American Capital Acquisition was treated as a taxable purchase of the American Capital assets for purposes of the Company’s taxable income calculations; therefore, realized gains or losses for tax purposes are generally consistent with realized gains or losses under GAAP.

Taxable income generally differs from net increase in stockholders’ equity resulting from operations for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses, and generally excludes net unrealized gains or losses, as unrealized gains or losses are generally not included in taxable income until they are realized. In addition, on April 1, 2010, the Company acquired Allied Capital in a “tax-free” merger under the Code, which has caused certain merger-related items to vary in their deductibility for GAAP and tax purposes.

Capital losses in excess of capital gains earned in a tax year may generally be carried forward and used to offset capital gains, subject to certain limitations. As of December 31, 2022, the Company estimates that it will have a capital loss carryforward of approximately $92 available for use in later tax years. While the Company’s ability to utilize losses in the future depends on a variety of factors that cannot be known in advance, approximately $92 of the capital loss carryforwards will be subject to limitations under Section 382 of the Code. The unused balance will be carried forward and utilized as gains are realized, subject to such limitations.

For the year ended December 31, 2022, the Company estimated U.S. federal taxable income exceeded its distributions made from such taxable income during the year; consequently, the Company has elected to carry forward the excess for distribution to shareholders in 2023. The amount carried forward to 2023 is estimated to be approximately $675, substantially all of which is expected to be ordinary income, although these amounts will not be finalized until the 2022 tax returns are filed in 2023. For the years ended December 31, 2021 and 2020, the Company had taxable income in excess of the distributions made from such taxable income during the year, and therefore, the Company elected to carry forward the excess for distribution
to shareholders in 2022 and 2021, respectively. The amounts carried forward to 2022 and 2021 were $679 and $471, respectively. To the extent that the Company determines that its estimated current year annual taxable income will exceed its estimated current year dividends from such taxable income, the Company accrues excise tax on estimated excess taxable income. For the years ended December 31, 2022, 2021 and 2020, a net expense of $30, $24 and $17, respectively, was recorded for U.S. federal excise tax. The net expense for the years ended December 31, 2021 and 2020 each included a reduction in expense related to an expected refund request arising from the overpayment of the prior year’s excise tax of $1and $1, respectively.

As of December 31, 2022, the estimated cost basis of investments for U.S. federal tax purposes was $22 billion resulting in estimated gross unrealized gains and losses of $1.0 billion and $(1.2) billion, respectively. As of December 31, 2021, the estimated cost basis of investments for U.S. federal tax purposes was $19.9 billion resulting in estimated gross unrealized gains and losses of $0.8 billion and $0.7 billion, respectively. As of December 31, 2022, the cost of investments for U.S. federal tax purposes was less than the amortized cost of investments for book purposes of $22.0 billion. As of December 31, 2021, the cost of investments for U.S federal tax purposes was greater than the amortized book cost of $19.8 billion primarily as a result of tax versus book basis differences in connection with the Allied Acquisition. The Allied Acquisition qualified as a “tax-free” reorganization under the Code, which resulted in the assets acquired by the Company retaining Allied Capital’s tax cost basis at the merger date.

The Company may adjust the classification of stockholders’ equity as a result of permanent book-to-tax differences, which may include merger-related items, differences in the book and tax basis of certain assets and liabilities, and nondeductible federal taxes (including excise taxes), among other items. These adjustments are reclassifications among the individual components of stockholders’ equity and have no effect on total stockholders’ equity. For the year ended December 31, 2022, the Company decreased capital in excess of par value by $22 and increased accumulated undistributed/(overdistributed) earnings by $22 in the consolidated statement of stockholders’ equity. After adjusting for these reclassifications, the capital in excess of par value, accumulated undistributed net investment income, accumulated net realized losses and accumulated net unrealized gains were $9,556, $519, $(146) and $(375), respectively. The adjustments made for the year ended December 31, 2022 are based on certain estimated amounts and assumptions and, as a result, such adjustments are subject to change until the Company’s 2022 U.S. federal tax return is filed in 2023. For the year ended December 31, 2021, the Company increased capital in excess of par value by $40 and decreased accumulated undistributed/(overdistributed) earnings by $40 in the consolidated statement of stockholders’ equity. After adjusting for these reclassifications, the capital in excess of par value, accumulated undistributed net investment income, accumulated net realized losses and accumulated net unrealized gains were $8,553, $253, $(88) and $150, respectively.

Certain of the Company’s consolidated subsidiaries are subject to U.S. federal and state income taxes. For the years ended December 31, 2022, 2021 and 2020, the Company recorded a net tax expense of approximately $25, $6 and $2, respectively, for these subsidiaries.
v3.22.4
DIVIDENDS AND DISTRIBUTIONS
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
DIVIDENDS AND DISTRIBUTIONS
12. DIVIDENDS AND DISTRIBUTIONS

The following table summarizes the Company’s dividends declared and payable during the years ended December 31, 2022, 2021 and 2020:

Date declaredRecord datePayment datePer share
amount		Total amount
October 25, 2022December 15, 2022December 29, 2022$0.48 $249 
February 9, 2022December 15, 2022December 29, 20220.03 (1)15 
July 26, 2022September 15, 2022September 30, 20220.43 219 
February 9, 2022September 15, 2022September 30, 20220.03 (1)15 
April 26, 2022June 15, 2022June 30, 20220.42 208 
February 9, 2022June 15, 2022June 30, 20220.03 (1)15 
February 9, 2022March 15, 2022March 31, 20220.42 205 
February 9, 2022March 15, 2022March 31, 20220.03 (1)15 
Total dividends declared and payable for the year ended December 31, 2022
$1.87 $941 
October 26, 2021December 15, 2021December 30, 2021$0.41 $191 
July 28, 2021September 15, 2021September 30, 20210.41 189 
April 28, 2021June 15, 2021June 30, 20210.40 177 
February 10, 2021March 15, 2021March 31, 20210.40 175 
Total dividends declared and payable for the year ended December 31, 2021
$1.62 $732 
October 27, 2020December 15, 2020December 30, 2020$0.40 $169 
August 4, 2020September 15, 2020September 30, 20200.40 169 
May 5, 2020June 15, 2020June 30, 20200.40 169 
February 12, 2020March 16, 2020March 31, 20200.40 172 
Total dividends declared and payable for the year ended December 31, 2020$1.60 $679 
___________________________________________________________________________
(1)Represents an additional dividend.

The Company has a dividend reinvestment plan, whereby the Company may buy shares of its common stock in the open market or issue new shares in order to satisfy dividend reinvestment requests. When the Company issues new shares in connection with the dividend reinvestment plan, the issue price is equal to the closing price of its common stock on the dividend payment date. Dividend reinvestment plan activity for the years ended December 31, 2022, 2021 and 2020, was as follows:

For the Years Ended December 31,
202220212020
Shares issued1.5 1.9 — 
Average issue price per share$19.58 $19.86 $— 
Shares purchased by plan agent to satisfy dividends declared and payable during the period for stockholders 1.6 (1)— 2.6 (2)
Average purchase price per share$17.85 $— $13.76 
___________________________________________________________________________

(1)Shares were purchased in July 2022 and October 2022.

(2)Shares were purchased in April 2020, July 2020, October 2020 and January 2021.
v3.22.4
RELATED PARTY TRANSACTIONS
 12 Months Ended
Dec. 31, 2022
Related Party Transactions [Abstract]  
RELATED PARTY TRANSACTIONS
13. RELATED PARTY TRANSACTIONS

In accordance with the investment advisory and management agreement, the Company bears all costs and expenses of the operation of the Company and reimburses its investment adviser or its affiliates for certain of such costs and expenses paid for by the investment adviser or its affiliates on behalf of the Company. For the years ended December 31, 2022, 2021 and 2020, the Company’s investment adviser or its affiliates incurred and the Company reimbursed such expenses totaling $5, $5 and $7, respectively.

The Company is party to office leases pursuant to which it is leasing office facilities from third parties. For certain of these office leases, the Company had previously entered into separate subleases with Ares Management LLC, the sole member of Ares Capital Management, whereby Ares Management LLC subleased the full amount of certain of the Company’s office leases. During the year ended December 31, 2020, the Company assigned to Ares Management LLC all of its rights, title and
interest in the offices it subleased to Ares Management LLC and Ares Management LLC assumed all of the Company’s obligations.

The Company has also entered into agreements with Ares Management LLC and IHAM, pursuant to which Ares Management LLC and IHAM are entitled to use the Company’s proprietary portfolio management software. For the years ended December 31, 2022, 2021 and 2020, amounts payable to the Company under these agreements totaled $0, $0 and $0, respectively.

In November 2022, the Company completed a public underwritten equity offering. In connection with this offering, Ares Capital Management LLC paid the underwriters approximately $2, or $0.24 per share. This payment is not subject to reimbursement by the Company. See Note 9 for additional information on the Company’s public offering during the year ended December 31, 2022.

See Notes 3 and 4 for descriptions of other related party transactions.
v3.22.4
FINANCIAL HIGHLIGHTS
 12 Months Ended
Dec. 31, 2022
Investment Company [Abstract]  
FINANCIAL HIGHLIGHTS
14. FINANCIAL HIGHLIGHTS

The following is a schedule of financial highlights as of and for the years ended December 31, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 and 2013:

 As of and For the Years Ended December 31,
Per Share Data:20222021202020192018
Net asset value, beginning of period(1)$18.96 $16.97 $17.32 $17.12 $16.65 
Issuances of common stock0.10 0.11 — 0.02 — 
Repurchases of common stock— — 0.11 — — 
Net investment income for period(2)2.19 1.66 1.87 1.90 1.63 
Net realized and unrealized gains (losses) for period(2)(0.98)1.84 (0.73)(0.04)0.38 
Net increase in stockholders’ equity1.31 3.61 1.25 1.88 2.01 
Total distributions to stockholders(3)(1.87)(1.62)(1.60)(1.68)(1.54)
Net asset value at end of period(1)$18.40 $18.96 $16.97 $17.32 $17.12 
Per share market value at end of period$18.47 $21.19 $16.89 $18.65 $15.58 
Total return based on market value(4)(3.83)%36.18 %(0.86)%30.49 %8.91 %
Total return based on net asset value(5)7.13 %21.97 %5.20 %12.14 %12.10 %
Shares outstanding at end of period519 468 423 431 426 
Ratio/Supplemental Data: 
Net assets at end of period$9,555 $8,868 $7,176 $7,467 $7,300 
Ratio of operating expenses to average net assets(6)(7)10.19 %13.05 %10.27 %9.92 %8.63 %
Ratio of net investment income to average net assets(6)(8)11.73 %9.19 %11.39 %11.01 %9.60 %
Portfolio turnover rate(6)37 %60 %40 %38 %54 %
 As of and For the Years Ended December 31,
Per Share Data:20172016201520142013
Net asset value, beginning of period(1)$16.45 $16.46 $16.82 $16.46 $16.04 
Issuances of common stock(0.01)— 0.01 — 0.16 
Repurchases of common stock— — (0.01)— — 
Deemed contribution from Ares Capital Management0.13 — — — — 
Issuances of convertible notes0.04 — — — — 
Net investment income for period(2)1.20 1.57 1.62 1.43 1.61 
Net realized and unrealized gains (losses) for period(2)0.36 (0.06)(0.41)0.50 0.22 
Net increase in stockholders’ equity1.72 1.51 1.21 1.93 1.99 
Total distributions to stockholders(3)(1.52)(1.52)(1.57)(1.57)(1.57)
Net asset value at end of period(1)$16.65 $16.45 $16.46 $16.82 $16.46 
Per share market value at end of period$15.72 $16.49 $14.25 $15.61 $17.77 
Total return based on market value(4)4.55 %26.39 %1.35 %(3.32)%10.51 %
Total return based on net asset value(5)10.53 %9.15 %7.16 %11.79 %11.41 %
Shares outstanding at end of period426 314 314 314 298 
Ratio/Supplemental Data: 
Net assets at end of period$7,098 $5,165 $5,173 $5,284 $4,904 
Ratio of operating expenses to average net assets(6)(7)9.45 %9.59 %9.51 %10.46 %10.03 %
Ratio of net investment income to average net assets(6)(8)7.65 %9.58 %9.75 %8.71 %9.86 %
Portfolio turnover rate(6)51 %39 %42 %39 %27 %
_____________________________________________________________________

(1)The net assets used equals the total stockholders’ equity on the consolidated balance sheet.
(2)Weighted average basic per share data.

(3)Includes additional dividend of (a) $0.12 per share for the year ended December 31, 2022, (b) $0.08 per share for the year ended December 31, 2019, (c) $0.05 per share for the year ended December 31, 2015, (d) $0.05 per
share for the year ended December 31, 2014 and (e) $0.05 per share for the year ended December 31, 2013.

(4)For the year ended December 31, 2022, the total return based on market value equaled the decrease of the ending market value at December 31, 2022 of $18.47 per share from the ending market value at December 31, 2021 of $21.19 per share plus the declared and payable dividends of $1.87 per share for the year ended December 31, 2022, divided by the market value at December 31, 2021. For the year ended December 31, 2021, the total return based on market value equaled the increase of the ending market value at December 31, 2021 of $21.19 per share from the ending market value at December 31, 2020 of $16.89 per share plus the declared and payable dividends of $1.62 per share for the year ended December 31, 2021, divided by the market value at December 31, 2020. For the year ended December 31, 2020, the total return based on market value equaled the decrease of the ending market value at December 31, 2020 of $16.89 per share from the ending market value at December 31, 2019 of $18.65 per share plus the declared and payable dividends of $1.60 per share for the year ended December 31, 2020, divided by the market value at December 31, 2019. For the year ended December 31, 2019, the total return based on market value equaled the increase of the ending market value at December 31, 2019 of $18.65 per share from the ending market value at December 31, 2018 of $15.58 per share plus the declared and payable dividends of $1.68 per share for the year ended December 31, 2019, divided by the market value at December 31, 2018. For the year ended December 31, 2018, the total return based on market value equaled the decrease of the ending market value at December 31, 2018 of $15.58 per share from the ending market value at December 31, 2017 of $15.72 per share plus the declared and payable dividends of $1.54 per share for the year ended December 31, 2018, divided by the market value at December 31, 2017. For the year ended December 31, 2017, the total return based on market value equaled the decrease of the ending market value at December 31, 2017 of $15.72 per share from the ending market value at December 31, 2016 of $16.49 per share plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2017, divided by the market value at December 31, 2016. For the year ended December 31, 2016, the total return based on market value equaled the increase of the ending market value at December 31, 2016 of $16.49 per share from the ending market value at December 31, 2015 of $14.25 per share plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2016, divided by the market value at December 31, 2015. For the year ended December 31, 2015, the total return based on market value equaled the decrease of the ending market value at December 31, 2015 of $14.25 per share from the ending market value at December 31, 2014 of $15.61 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2015, divided by the market value at December 31, 2014. For the year ended December 31, 2014, the total return based on market value equaled the decrease of the ending market value at December 31, 2014 of $15.61 per share from the ending market value at December 31, 2013 of $17.77 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2014, divided by the market value at December 31, 2013. For the year ended December 31, 2013, the total return based on market value equaled the increase of the ending market value at December 31, 2013 of $17.77 per share from the ending market value at December 31, 2012 of $17.50 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2013, divided by the market value at December 31, 2012. The Company’s performance changes over time and currently may be different than that shown. Past performance is no guarantee of future results.

(5)For the year ended December 31, 2022, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.87 per share for the year ended December 31, 2022, divided by the beginning net asset value for the period. For the year ended December 31, 2021, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.62 per share for the year ended December 31, 2021, divided by the beginning net asset value for the period. For the year ended December 31, 2020, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of$1.60 per share for the year ended December 31, 2020, divided by the beginning net asset value for the period. For the year ended December 31, 2019, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.68 per share for the year ended December 31, 2019, divided by the beginning net asset value for the period. For the year ended December 31, 2018, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.54 per share for the year ended December 31, 2018, divided by the beginning net asset value for the period. For the year ended December 31, 2017, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2017, divided by the beginning net asset value for the period. These calculations are adjusted for shares issued in connection with the dividend reinvestment plan, the issuance of common
stock in connection with any equity offerings and the equity components of any convertible notes issued during the period. For the year ended December 31, 2016, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2016, divided by the beginning net asset value for the period. For the year ended December 31, 2015, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2015, divided by the beginning net asset value for the period. For the year ended December 31, 2014, the total return based on net asset value equaled the change in net asset
value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2014, divided by the beginning net asset value for the period. For the year ended December 31, 2013, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2013, divided by the beginning net asset value for the period. The Company’s performance changes over time and currently may be different than that shown. Past performance is no guarantee of future results.

(6)The ratios reflect an annualized amount.

(7)For the years ended December 31, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 and 2013 the ratio of operating expenses to average net assets consisted of the following:
 For the Years Ended December 31,
20222021202020192018
Base management fees3.27 %3.14 %3.10 %2.78 %2.49 %
Income based fees and capital gains incentive fees, net of the fee waiver1.61 %4.80 %1.80 %2.23 %2.24 %
Income based fees and capital gains incentive fees excluding the fee waiver1.61 %4.80 %1.80 %2.64 %2.79 %
Cost of borrowing4.89 %4.61 %4.54 %3.94 %3.33 %
Other operating expenses0.42 %0.50 %0.83 %0.97 %0.57 %
 For the Years Ended December 31,
20172016201520142013
Base management fees2.57 %2.64 %2.55 %2.51 %2.40 %
Income based fees and capital gains incentive fees, net of the fee waiver2.18 %2.29 %2.31 %2.90 %2.80 %
Income based fees and capital gains incentive fees excluding the fee waiver2.32 %2.29 %2.31 %2.90 %2.80 %
Cost of borrowing3.37 %3.58 %4.32 %4.24 %3.94 %
Other operating expenses1.33 %1.08 %0.33 %0.81 %0.89 %

(8)The ratio of net investment income to average net assets excludes income taxes related to realized gains and losses.
v3.22.4
SUBSEQUENT EVENTS
 12 Months Ended
Dec. 31, 2022
Subsequent Events [Abstract]  
SUBSEQUENT EVENTS
15. SUBSEQUENT EVENTS

The Company’s management has evaluated subsequent events through the date of issuance of the consolidated financial statements included herein. There have been no subsequent events that occurred during such period that would require disclosure in this Form 10-K or would be required to be recognized in the consolidated financial statements as of and for the year ended December 31, 2022, except as discussed below.
In January 2023, the Company and AFB, a wholly owned subsidiary of Ares Capital, entered into an agreement to amend the BNP Funding Facility. The amendment, among other things, (a) increased the commitments under the facility from $300 to $500 and (b) adjusted the interest rate charged on the BNP Funding Facility from an applicable LIBOR (subject to a floor of 0.00%) or a “base rate” plus a margin of (i) 1.80% during the reinvestment period and (ii) 2.30% following the reinvestment period to an applicable SOFR (subject to a floor of 0.00%) plus a credit spread adjustment of 0.10% or a “base rate” plus a margin of (i) 2.30% during the reinvestment period and (ii) 2.80% following the reinvestment period.

In January 2023, the Company completed a public equity offering pursuant to which it sold approximately 12.1 shares of common stock at a price of $18.53 per share to the participating underwriters, with net proceeds totaling approximately $223.4, after giving effect to underwriting fees and estimated offering expenses.

In February 2023, the Company’s board of directors authorized an amendment to the Company’s existing stock repurchase program to extend the expiration date of the program from February 15, 2023 to February 15, 2024. Under the program, the Company may repurchase up to $500 in the aggregate of its outstanding common stock in the open market at a price per share that meets certain thresholds below its net asset value per share, in accordance with the guidelines specified in Rule 10b-18 of the Exchange Act. The timing, manner, price and amount of any share repurchases will be determined by the Company, in its discretion, based upon the evaluation of economic and market conditions, stock price, applicable legal and regulatory requirements and other factors.
v3.22.4
N-2 - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cover [Abstract]                                    
Entity Central Index Key                 0001287750                  
Amendment Flag                 false                  
Securities Act File Number                 814-00663                  
Document Type                 10-K                  
Entity Registrant Name                 ARES CAPITAL CORPORATION                  
Entity Address, Address Line One                 245 Park Avenue                  
Entity Address, Address Line Two                 44th Floor                  
Entity Address, City or Town                 New York                  
Entity Address, State or Province                 NY                  
Entity Address, Postal Zip Code                 10167                  
City Area Code                 212                  
Local Phone Number                 750-7300                  
Entity Well-known Seasoned Issuer                 Yes                  
Entity Emerging Growth Company                 false                  
Fee Table [Abstract]                                    
Shareholder Transaction Expenses [Table Text Block]                
Stockholder transaction expenses (as a percentage of offering price):
Sales load
— (1)
Offering expenses
— (2)
Dividend reinvestment plan expenses
Up to $15
Transaction Fee
(3)
Total stockholder transaction expenses paid
— (4)
Annual expenses (as a percentage of consolidated net assets attributable to common
stock)(5):
Base management fees
3.36 %(6)
Income based fees and capital gains incentive fees
1.65 %(7)
Interest payments on borrowed funds
4.99 %(8)
Other expenses
1.03 %(9)
Acquired fund fees and expenses
1.74 %(10)
Total annual expenses
12.77 %(11)
_______________________________________________________________________________

(1)If shares of our common stock are sold to or through underwriters, the applicable prospectus or prospectus supplement will disclose the applicable sales load (underwriting discount or commission). Purchases of shares of our common stock on the secondary market are not subject to sales charges but may be subject to brokerage commissions or other charges. The table does not include any sales load that stockholders may have paid in connection with their purchase of shares of our common stock.

(2)The applicable prospectus or prospectus supplement will disclose the estimated amount of offering expenses, the offering price and the offering expenses borne by us as a percentage of the offering price.

(3)The expenses of the dividend reinvestment plan are included in “Other expenses.” The plan administrator’s fees under the plan are paid by us. If a participant elects by notice to the plan administrator in advance of termination to have the plan administrator sell part or all of the shares held by the plan administrator in the participant’s account and remit the proceeds to the participant, the plan administrator is authorized to deduct a transaction fee of up to $15 plus a $0.12 per share fee from the proceeds. See “Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities—Issuer Purchases of Equity Securities—Dividend Reinvestment Plan” for more information.

(4)The applicable prospectus or prospectus supplement will disclose the offering price and the total stockholder transaction expenses as a percentage of the offering price.

(5)The "consolidated net assets attributable to common stock" used to calculate the percentages in this table is our average net assets of $9.1 billion for the year ended December 31, 2022.

(6)Our base management fee is calculated at an annual rate of 1.5% based on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) at the end of the two most recently completed calendar quarters; provided, however, the base management fee is calculated at an annual rate of 1.0% on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) that exceeds the product of (A) 200% and (B) our net asset value at the end of the most recently completed calendar quarter. The 3.36% reflected on the table is higher than 1.5% because it is calculated on our average net assets (rather than our average total assets) for the year ended December 31, 2022. See “Business—Investment Advisory and Management Agreement.”

(7)This item represents our investment adviser’s income based fees and capital gains incentive fees based on actual income based fees for the year ended December 31, 2022, and adding the capital gains incentive fee expense accrued
in accordance with GAAP for the year ended December 31, 2022, even though there was no capital gains incentive fee actually payable under the investment advisory and management agreement as of December 31, 2022.

GAAP requires that the capital gains incentive fee accrual consider the cumulative aggregate unrealized capital appreciation in the calculation, as a capital gains incentive fee would be payable if such unrealized capital appreciation were realized, even though such unrealized capital appreciation is not permitted to be considered in calculating the fee actually payable under the Investment Company Act or the investment advisory and management agreement. This GAAP accrual is calculated using the aggregate cumulative realized capital gains and losses and aggregate cumulative unrealized capital depreciation included in the calculation of the capital gains incentive fee actually payable under the investment advisory and management agreement plus the aggregate cumulative unrealized capital appreciation. If such amount is positive at the end of a period, then GAAP requires us to record a capital gains incentive fee equal to 20% of such cumulative amount, less the aggregate amount of actual capital gains incentive fees paid or capital gains incentive fees accrued under GAAP in all prior periods. The resulting accrual for any capital gains incentive fee under GAAP in a given period may result in an additional expense if such cumulative amount is greater than in the prior period or a reversal of previously recorded expense if such cumulative amount is less than in the prior period. If such cumulative amount is negative, then there is no accrual. There can be no assurance that such unrealized capital appreciation will be realized in the future or that the amount accrued for will ultimately be paid.

For purposes of this table, we have assumed that these fees will be payable (in the case of the capital gains incentive fee) and that they will remain constant, although they are based on our performance and will not be paid unless we achieve certain goals. We expect to invest or otherwise utilize all of the net proceeds from securities registered under our registration statement pursuant to a particular prospectus supplement within three months of the date of the offering pursuant to such prospectus supplement and may have capital gains and interest income that could result in the payment of these fees to our investment adviser in the first year after completion of such offerings. Since our IPO through December 31, 2022, the average quarterly fees accrued related to income based fees and capital gains incentive fees (including capital gains incentive fees accrued under GAAP even though they may not be payable) have been approximately 0.65% of our weighted average net assets for such period (2.58% on an annualized basis). For more detailed information about income based fees and capital gains incentive fees previously incurred by us, please see Note 3 to our consolidated financial statements for the year ended December 31, 2022.

Income based fees are payable quarterly in arrears in an amount equal to 20% of our pre‑incentive fee net investment income (including interest that is accrued but not yet received in cash), subject to a 1.75% quarterly (7.0% annualized) hurdle rate and a “catch‑up” provision measured as of the end of each calendar quarter. Under this provision, in any calendar quarter, our investment adviser receives no income based fees until our net investment income equals the hurdle rate of 1.75% but then receives, as a “catch‑up,” 100% of our pre‑incentive fee net investment income with respect to that portion of such pre‑incentive fee net investment income, if any, that exceeds the hurdle rate but is less than 2.1875%. The effect of this provision is that, if pre‑incentive fee net investment income exceeds 2.1875% in any calendar quarter, our investment adviser will receive 20% of our pre‑incentive fee net investment income as if a hurdle rate did not apply.

Capital gains incentive fees are payable annually in arrears in an amount equal to 20% of our realized capital gains on a cumulative basis from inception through the end of the year, if any, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of capital gains incentive fees paid in all prior years.
    
We will defer cash payment of any income based fees and capital gains incentive fees otherwise earned by our investment adviser if, during the most recent four full calendar quarter period ending on or prior to the date such payment is to be made, the sum of (a) our aggregate distributions to our stockholders and (b) our change in net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period) is less than 7.0% of our net assets (defined as total assets less indebtedness) at the beginning of such period. Any deferred income based fees and capital gains incentive fees are carried over for payment in subsequent calculation periods to the extent such payment is payable under the investment advisory and management agreement.

These calculations will be adjusted for any share issuances or repurchases.
See “Business—Investment Advisory and Management Agreement.”

(8)“Interest payments on borrowed funds” represents our interest expenses estimated based on our actual interest and credit facility expenses incurred for the year ended December 31, 2022. During the year ended December 31, 2022, our average outstanding borrowings were approximately $11.5 billion and cash paid for interest expense was $402
million. We had outstanding borrowings of approximately $12.2 billion (with a carrying value of approximately $12.2 billion) as of December 31, 2022. This item is based on the assumption that our borrowings and interest costs after an offering will remain similar to those prior to such offering. The amount of leverage that we may employ at any particular time will depend on, among other things, our investment adviser’s and our board of directors’ assessment of market and other factors at the time of any proposed borrowing. See “Risk Factors—Risks Relating to Our Business—We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.” We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources.”

(9)Includes our overhead expenses, including payments under our administration agreement based on our allocable portion of overhead and other expenses incurred by Ares Operations in performing its obligations under the administration agreement, and income taxes. Such expenses are estimated based on actual “Other expenses” for the year ended December 31, 2022. The holders of shares of our common stock (and not the holders of our debt securities or preferred stock, if any) indirectly bear the cost associated with our annual expenses. See “Business—Administration Agreement.”

(10)Our stockholders indirectly bear the expenses of underlying funds or other investment vehicles that would be investment companies under section 3(a) of the Investment Company Act but for the exceptions to that definition provided for in sections 3(c)(1) and 3(c)(7) of the Investment Company Act (“Acquired Funds”) in which we invest. This amount is estimated based on the estimated annual fees and operating expenses of Acquired Funds in which the Company is invested as of December 31, 2022. Certain of these Acquired Funds are subject to management fees, which generally range from 1% to 2.5% of total net assets, or incentive fees, which generally range between 15% and 25% of net profits. When applicable, fees and operating expenses estimates are based on historic fees and operating expenses for the Acquired Funds. For those Acquired Funds with little or no operating history, fees and operating expenses are estimates based on expected fees and operating expenses stated in the Acquired Funds’ offering memorandum, private placement memorandum or other similar communication without giving effect to any performance. Future fees and operating expenses for these Acquired Funds may be substantially higher or lower because certain fees and operating expenses are based on the performance of the Acquired Funds, which may fluctuate over time. Also included with the amount is an estimate of the annual fees and operating expenses of the SDLP. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Portfolio and Investment Activity—Senior Direct Lending Program” and Note 4 to our consolidated financial statements for the year ended December 31, 2022 for more information on the SDLP. The annual fees and operating expenses of the SDLP were estimated based on the funded portfolio of the SDLP as of December 31, 2022 and include interest payments on the senior notes and intermediate funding notes provided by Varagon and its clients, which represent 88% of such expenses.

(11)Total annual expenses as a percentage of consolidated net assets attributable to common stock are higher than the total annual expenses percentage would be for a company that is not leveraged. We borrow money to leverage and increase our total assets. The SEC requires that the “Total annual expenses” percentage be calculated as a percentage of net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period), rather than the total assets, including assets that have been funded with borrowed monies.
                  
Sales Load [Percent]                 0.00%                  
Other Transaction Expenses [Abstract]                                    
Other Transaction Expense 1 [Percent]                 0.00%                  
Annual Expenses [Table Text Block]                
Stockholder transaction expenses (as a percentage of offering price):
Sales load
— (1)
Offering expenses
— (2)
Dividend reinvestment plan expenses
Up to $15
Transaction Fee
(3)
Total stockholder transaction expenses paid
— (4)
Annual expenses (as a percentage of consolidated net assets attributable to common
stock)(5):
Base management fees
3.36 %(6)
Income based fees and capital gains incentive fees
1.65 %(7)
Interest payments on borrowed funds
4.99 %(8)
Other expenses
1.03 %(9)
Acquired fund fees and expenses
1.74 %(10)
Total annual expenses
12.77 %(11)
_______________________________________________________________________________

(1)If shares of our common stock are sold to or through underwriters, the applicable prospectus or prospectus supplement will disclose the applicable sales load (underwriting discount or commission). Purchases of shares of our common stock on the secondary market are not subject to sales charges but may be subject to brokerage commissions or other charges. The table does not include any sales load that stockholders may have paid in connection with their purchase of shares of our common stock.

(2)The applicable prospectus or prospectus supplement will disclose the estimated amount of offering expenses, the offering price and the offering expenses borne by us as a percentage of the offering price.

(3)The expenses of the dividend reinvestment plan are included in “Other expenses.” The plan administrator’s fees under the plan are paid by us. If a participant elects by notice to the plan administrator in advance of termination to have the plan administrator sell part or all of the shares held by the plan administrator in the participant’s account and remit the proceeds to the participant, the plan administrator is authorized to deduct a transaction fee of up to $15 plus a $0.12 per share fee from the proceeds. See “Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities—Issuer Purchases of Equity Securities—Dividend Reinvestment Plan” for more information.

(4)The applicable prospectus or prospectus supplement will disclose the offering price and the total stockholder transaction expenses as a percentage of the offering price.

(5)The "consolidated net assets attributable to common stock" used to calculate the percentages in this table is our average net assets of $9.1 billion for the year ended December 31, 2022.

(6)Our base management fee is calculated at an annual rate of 1.5% based on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) at the end of the two most recently completed calendar quarters; provided, however, the base management fee is calculated at an annual rate of 1.0% on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) that exceeds the product of (A) 200% and (B) our net asset value at the end of the most recently completed calendar quarter. The 3.36% reflected on the table is higher than 1.5% because it is calculated on our average net assets (rather than our average total assets) for the year ended December 31, 2022. See “Business—Investment Advisory and Management Agreement.”

(7)This item represents our investment adviser’s income based fees and capital gains incentive fees based on actual income based fees for the year ended December 31, 2022, and adding the capital gains incentive fee expense accrued
in accordance with GAAP for the year ended December 31, 2022, even though there was no capital gains incentive fee actually payable under the investment advisory and management agreement as of December 31, 2022.

GAAP requires that the capital gains incentive fee accrual consider the cumulative aggregate unrealized capital appreciation in the calculation, as a capital gains incentive fee would be payable if such unrealized capital appreciation were realized, even though such unrealized capital appreciation is not permitted to be considered in calculating the fee actually payable under the Investment Company Act or the investment advisory and management agreement. This GAAP accrual is calculated using the aggregate cumulative realized capital gains and losses and aggregate cumulative unrealized capital depreciation included in the calculation of the capital gains incentive fee actually payable under the investment advisory and management agreement plus the aggregate cumulative unrealized capital appreciation. If such amount is positive at the end of a period, then GAAP requires us to record a capital gains incentive fee equal to 20% of such cumulative amount, less the aggregate amount of actual capital gains incentive fees paid or capital gains incentive fees accrued under GAAP in all prior periods. The resulting accrual for any capital gains incentive fee under GAAP in a given period may result in an additional expense if such cumulative amount is greater than in the prior period or a reversal of previously recorded expense if such cumulative amount is less than in the prior period. If such cumulative amount is negative, then there is no accrual. There can be no assurance that such unrealized capital appreciation will be realized in the future or that the amount accrued for will ultimately be paid.

For purposes of this table, we have assumed that these fees will be payable (in the case of the capital gains incentive fee) and that they will remain constant, although they are based on our performance and will not be paid unless we achieve certain goals. We expect to invest or otherwise utilize all of the net proceeds from securities registered under our registration statement pursuant to a particular prospectus supplement within three months of the date of the offering pursuant to such prospectus supplement and may have capital gains and interest income that could result in the payment of these fees to our investment adviser in the first year after completion of such offerings. Since our IPO through December 31, 2022, the average quarterly fees accrued related to income based fees and capital gains incentive fees (including capital gains incentive fees accrued under GAAP even though they may not be payable) have been approximately 0.65% of our weighted average net assets for such period (2.58% on an annualized basis). For more detailed information about income based fees and capital gains incentive fees previously incurred by us, please see Note 3 to our consolidated financial statements for the year ended December 31, 2022.

Income based fees are payable quarterly in arrears in an amount equal to 20% of our pre‑incentive fee net investment income (including interest that is accrued but not yet received in cash), subject to a 1.75% quarterly (7.0% annualized) hurdle rate and a “catch‑up” provision measured as of the end of each calendar quarter. Under this provision, in any calendar quarter, our investment adviser receives no income based fees until our net investment income equals the hurdle rate of 1.75% but then receives, as a “catch‑up,” 100% of our pre‑incentive fee net investment income with respect to that portion of such pre‑incentive fee net investment income, if any, that exceeds the hurdle rate but is less than 2.1875%. The effect of this provision is that, if pre‑incentive fee net investment income exceeds 2.1875% in any calendar quarter, our investment adviser will receive 20% of our pre‑incentive fee net investment income as if a hurdle rate did not apply.

Capital gains incentive fees are payable annually in arrears in an amount equal to 20% of our realized capital gains on a cumulative basis from inception through the end of the year, if any, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of capital gains incentive fees paid in all prior years.
    
We will defer cash payment of any income based fees and capital gains incentive fees otherwise earned by our investment adviser if, during the most recent four full calendar quarter period ending on or prior to the date such payment is to be made, the sum of (a) our aggregate distributions to our stockholders and (b) our change in net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period) is less than 7.0% of our net assets (defined as total assets less indebtedness) at the beginning of such period. Any deferred income based fees and capital gains incentive fees are carried over for payment in subsequent calculation periods to the extent such payment is payable under the investment advisory and management agreement.

These calculations will be adjusted for any share issuances or repurchases.
See “Business—Investment Advisory and Management Agreement.”

(8)“Interest payments on borrowed funds” represents our interest expenses estimated based on our actual interest and credit facility expenses incurred for the year ended December 31, 2022. During the year ended December 31, 2022, our average outstanding borrowings were approximately $11.5 billion and cash paid for interest expense was $402
million. We had outstanding borrowings of approximately $12.2 billion (with a carrying value of approximately $12.2 billion) as of December 31, 2022. This item is based on the assumption that our borrowings and interest costs after an offering will remain similar to those prior to such offering. The amount of leverage that we may employ at any particular time will depend on, among other things, our investment adviser’s and our board of directors’ assessment of market and other factors at the time of any proposed borrowing. See “Risk Factors—Risks Relating to Our Business—We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.” We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources.”

(9)Includes our overhead expenses, including payments under our administration agreement based on our allocable portion of overhead and other expenses incurred by Ares Operations in performing its obligations under the administration agreement, and income taxes. Such expenses are estimated based on actual “Other expenses” for the year ended December 31, 2022. The holders of shares of our common stock (and not the holders of our debt securities or preferred stock, if any) indirectly bear the cost associated with our annual expenses. See “Business—Administration Agreement.”

(10)Our stockholders indirectly bear the expenses of underlying funds or other investment vehicles that would be investment companies under section 3(a) of the Investment Company Act but for the exceptions to that definition provided for in sections 3(c)(1) and 3(c)(7) of the Investment Company Act (“Acquired Funds”) in which we invest. This amount is estimated based on the estimated annual fees and operating expenses of Acquired Funds in which the Company is invested as of December 31, 2022. Certain of these Acquired Funds are subject to management fees, which generally range from 1% to 2.5% of total net assets, or incentive fees, which generally range between 15% and 25% of net profits. When applicable, fees and operating expenses estimates are based on historic fees and operating expenses for the Acquired Funds. For those Acquired Funds with little or no operating history, fees and operating expenses are estimates based on expected fees and operating expenses stated in the Acquired Funds’ offering memorandum, private placement memorandum or other similar communication without giving effect to any performance. Future fees and operating expenses for these Acquired Funds may be substantially higher or lower because certain fees and operating expenses are based on the performance of the Acquired Funds, which may fluctuate over time. Also included with the amount is an estimate of the annual fees and operating expenses of the SDLP. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Portfolio and Investment Activity—Senior Direct Lending Program” and Note 4 to our consolidated financial statements for the year ended December 31, 2022 for more information on the SDLP. The annual fees and operating expenses of the SDLP were estimated based on the funded portfolio of the SDLP as of December 31, 2022 and include interest payments on the senior notes and intermediate funding notes provided by Varagon and its clients, which represent 88% of such expenses.

(11)Total annual expenses as a percentage of consolidated net assets attributable to common stock are higher than the total annual expenses percentage would be for a company that is not leveraged. We borrow money to leverage and increase our total assets. The SEC requires that the “Total annual expenses” percentage be calculated as a percentage of net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period), rather than the total assets, including assets that have been funded with borrowed monies.
                  
Management Fees [Percent]                 3.36%                  
Interest Expenses on Borrowings [Percent]                 4.99%                  
Incentive Fees [Percent]                 1.65%                  
Acquired Fund Fees and Expenses [Percent]                 1.74%                  
Other Annual Expenses [Abstract]                                    
Other Annual Expenses [Percent]                 1.03%                  
Total Annual Expenses [Percent]                 12.77%                  
Expense Example [Table Text Block]                 The following example demonstrates the projected dollar amount of total cumulative expenses over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed that we would have no additional leverage, that none of our assets are cash or cash equivalents and that our annual operating expenses would remain at the levels set forth in the table above. Income based fees and the capital gains incentive fees under the investment advisory and management agreement, which, assuming a 5% annual return, would either not be payable or have an insignificant impact on the expense amounts shown below, are not included in the example, except as specifically set forth below. Transaction expenses are not included in the following example.
1 year
3 years
5 years
10 years
You would pay the following expenses on a $1,000 common stock investment, assuming a 5% annual return (none of which is subject to the capital gains incentive fee)(1)
$(164)$(359)$(530)$(870)
You would pay the following expenses on a $1,000 common stock investment, assuming a 5% annual return resulting entirely from net realized capital gains (all of which is subject to the capital gains incentive fee)(2)
$(174)$(384)$(567)$(925)
_______________________________________________________________________________

(1)Assumes that we will not realize any capital gains computed net of all realized capital losses and unrealized capital depreciation.
(2)Assumes no unrealized capital depreciation and a 5% annual return resulting entirely from net realized capital gains and not otherwise deferrable under the terms of the investment advisory and management agreement and therefore subject to the capital gains incentive fee.
                  
Expense Example, Year 01                 $ (164)                  
Expense Example, Years 1 to 3                 (359)                  
Expense Example, Years 1 to 5                 (530)                  
Expense Example, Years 1 to 10                 $ (870)                  
Purpose of Fee Table , Note [Text Block]                 The following table is intended to assist you in understanding the costs and expenses that an investor in our common stock will bear, directly or indirectly, based on the assumptions set forth below. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this Form 10-K contains a reference to our fees or expenses, we will pay such fees and expenses out of our net assets and, consequently, stockholders will indirectly bear such fees or expenses as investors in us.                  
Other Transaction Fees, Note [Text Block]                 The expenses of the dividend reinvestment plan are included in “Other expenses.” The plan administrator’s fees under the plan are paid by us. If a participant elects by notice to the plan administrator in advance of termination to have the plan administrator sell part or all of the shares held by the plan administrator in the participant’s account and remit the proceeds to the participant, the plan administrator is authorized to deduct a transaction fee of up to $15 plus a $0.12 per share fee from the proceeds. See “Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities—Issuer Purchases of Equity Securities—Dividend Reinvestment Plan” for more information.                  
Other Expenses, Note [Text Block]                 Includes our overhead expenses, including payments under our administration agreement based on our allocable portion of overhead and other expenses incurred by Ares Operations in performing its obligations under the administration agreement, and income taxes. Such expenses are estimated based on actual “Other expenses” for the year ended December 31, 2022. The holders of shares of our common stock (and not the holders of our debt securities or preferred stock, if any) indirectly bear the cost associated with our annual expenses. See “Business—Administration Agreement.”                  
Management Fee not based on Net Assets, Note [Text Block]                 Our base management fee is calculated at an annual rate of 1.5% based on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) at the end of the two most recently completed calendar quarters; provided, however, the base management fee is calculated at an annual rate of 1.0% on the average value of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) that exceeds the product of (A) 200% and (B) our net asset value at the end of the most recently completed calendar quarter. The 3.36% reflected on the table is higher than 1.5% because it is calculated on our average net assets (rather than our average total assets) for the year ended December 31, 2022. See “Business—Investment Advisory and Management Agreement.”                  
Acquired Fund Fees Estimated, Note [Text Block]                 Our stockholders indirectly bear the expenses of underlying funds or other investment vehicles that would be investment companies under section 3(a) of the Investment Company Act but for the exceptions to that definition provided for in sections 3(c)(1) and 3(c)(7) of the Investment Company Act (“Acquired Funds”) in which we invest. This amount is estimated based on the estimated annual fees and operating expenses of Acquired Funds in which the Company is invested as of December 31, 2022. Certain of these Acquired Funds are subject to management fees, which generally range from 1% to 2.5% of total net assets, or incentive fees, which generally range between 15% and 25% of net profits. When applicable, fees and operating expenses estimates are based on historic fees and operating expenses for the Acquired Funds. For those Acquired Funds with little or no operating history, fees and operating expenses are estimates based on expected fees and operating expenses stated in the Acquired Funds’ offering memorandum, private placement memorandum or other similar communication without giving effect to any performance. Future fees and operating expenses for these Acquired Funds may be substantially higher or lower because certain fees and operating expenses are based on the performance of the Acquired Funds, which may fluctuate over time. Also included with the amount is an estimate of the annual fees and operating expenses of the SDLP. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Portfolio and Investment Activity—Senior Direct Lending Program” and Note 4 to our consolidated financial statements for the year ended December 31, 2022 for more information on the SDLP. The annual fees and operating expenses of the SDLP were estimated based on the funded portfolio of the SDLP as of December 31, 2022 and include interest payments on the senior notes and intermediate funding notes provided by Varagon and its clients, which represent 88% of such expenses.                  
Financial Highlights [Abstract]                                    
Senior Securities [Table Text Block]                
Information about our senior securities (including preferred stock, debt securities and other indebtedness) is shown in the following tables as of the end of the last ten fiscal years. The report of our independent registered public accounting firm, KPMG LLP, on the senior securities table as of December 31, 2022, is attached as an exhibit to this annual report on Form 10-K. The “-” indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.

Class and Year		Total Amount Outstanding Exclusive of Treasury Securities(1)Asset Coverage Per Unit(2)Involuntary Liquidating Preference Per Unit(3)Average Market Value Per Unit(4)
 Revolving Credit Facility
 Fiscal 2022$2,246 $1,772 $— N/A
 Fiscal 20211,507 1,792 — N/A
 Fiscal 20201,180 1,824 — N/A
 Fiscal 20192,250 2,042 —  N/A
 Fiscal 20181,064 2,362 —  N/A
 Fiscal 2017395 2,415 —  N/A
 Fiscal 2016571 2,296 —  N/A
 Fiscal 2015515 2,213 —  N/A
 Fiscal 2014170 2,292 —  N/A
 Fiscal 2013— — —  N/A
 Revolving Funding Facility
 Fiscal 2022$800 $1,772 $— N/A
 Fiscal 2021762 1,792 — N/A
 Fiscal 20201,027 1,824 — N/A
 Fiscal 2019638 2,042 —  N/A
 Fiscal 2018520 2,362 —  N/A
 Fiscal 2017600 2,415 —  N/A
 Fiscal 2016155 2,296 —  N/A
 Fiscal 2015250 2,213 —  N/A
 Fiscal 2014324 2,292 —  N/A
 Fiscal 2013185 2,547 —  N/A
 SMBC Funding Facility
 Fiscal 2022$451 $1,772 $— N/A
 Fiscal 2021401 1,792 — N/A
 Fiscal 2020453 1,824 — N/A
 Fiscal 2019301 2,042 —  N/A
 Fiscal 2018245 2,362 —  N/A
 Fiscal 201760 2,415 —  N/A
 Fiscal 2016105 2,296 —  N/A
 Fiscal 2015110 2,213 —  N/A
 Fiscal 201462 2,292 —  N/A
 Fiscal 2013— — —  N/A
 BNP Funding Facility
 Fiscal 2022$245 $1,772 $— N/A
 Fiscal 2021— 1,792 — N/A
 Fiscal 2020150 1,824 — N/A
 SBA Debentures
 Fiscal 2017$— $— $—  N/A

Class and Year		Total Amount Outstanding Exclusive of Treasury Securities(1)Asset Coverage Per Unit(2)Involuntary Liquidating Preference Per Unit(3)Average Market Value Per Unit(4)
 Fiscal 201625 2,296 —  N/A
 Fiscal 201522 2,213 —  N/A
 February 2016 Convertible Notes
 Fiscal 2015$575 $2,213 $—  N/A
 Fiscal 2014575 2,292 —  N/A
 Fiscal 2013575 2,547 —  N/A
 June 2016 Convertible Notes
 Fiscal 2015$230 $2,213 $—  N/A
 Fiscal 2014230 2,292 —  N/A
 Fiscal 2013230 2,547 —  N/A
 2017 Convertible Notes
 Fiscal 2016$163 $2,296 $—  N/A
 Fiscal 2015163 2,213 —  N/A
 Fiscal 2014163 2,292 —  N/A
 Fiscal 2013163 2,547 —  N/A
 2018 Convertible Notes
 Fiscal 2017$270 $2,415 $—  N/A
 Fiscal 2016270 2,296 —  N/A
 Fiscal 2015270 2,213 —  N/A
 Fiscal 2014270 2,292 —  N/A
 Fiscal 2013270 2,547 —  N/A
 2019 Convertible Notes
 Fiscal 2018$300 $2,362 $—  N/A
 Fiscal 2017300 2,415 —  N/A
 Fiscal 2016300 2,296 — N/A
 Fiscal 2015300 2,213 — N/A
 Fiscal 2014300 2,292 — N/A
 Fiscal 2013300 2,547 — N/A
 2022 Convertible Notes
 Fiscal 2021$388 $1,792 $— N/A
 Fiscal 2020 388 1,824 — N/A
 Fiscal 2019388 2,042 —  N/A
 Fiscal 2018388 2,362 —  N/A
 Fiscal 2017388 2,415 — N/A
 2024 Convertible Notes
 Fiscal 2022$403 $1,772 $— N/A
 Fiscal 2021403 1,792 — N/A
 Fiscal 2020403 1,824 — N/A
 Fiscal 2019403 2,042 —  N/A
 2018 Notes
 Fiscal 2017$750 $2,415 $— N/A
 Fiscal 2016750 2,296 — N/A
 Fiscal 2015750 2,213 — N/A
 Fiscal 2014750 2,292 — N/A
 Fiscal 2013600 2,547 — N/A

Class and Year		Total Amount Outstanding Exclusive of Treasury Securities(1)Asset Coverage Per Unit(2)Involuntary Liquidating Preference Per Unit(3)Average Market Value Per Unit(4)
 2020 Notes
 Fiscal 2018$600 $2,362 $—  N/A
 Fiscal 2017600 2,415 — N/A
 Fiscal 2016600 2,296 — N/A
 Fiscal 2015600 2,213 — N/A
 Fiscal 2014400 2,292 — N/A
2022 Notes
 Fiscal 2020$600 $1,824 $— N/A
 Fiscal 2019600 2,042 —  N/A
 Fiscal 2018600 2,362 —  N/A
 Fiscal 2017600 2,415 — N/A
 Fiscal 2016600 2,296 — N/A
 February 2022 Notes
 Fiscal 2014$144 $2,292 $— $1,024 
 Fiscal 2013144 2,547 — 1,043 
 October 2022 Notes
 Fiscal 2016$183 $2,296 $— $1,017 
 Fiscal 2015183 2,213 — 1,011 
 Fiscal 2014183 2,292 — 1,013 
 Fiscal 2013183 2,547 — 993 
 2040 Notes
 Fiscal 2014$200 $2,292 $— $1,040 
 Fiscal 2013200 2,547 — 1,038 
 2023 Notes
 Fiscal 2022$750 $1,772 $— N/A
 Fiscal 2021750 1,792 — N/A
 Fiscal 2020750 1,824 — N/A
 Fiscal 2019750 2,042 —  N/A
 Fiscal 2018750 2,362 —  N/A
 Fiscal 2017750 2,415 — N/A
 2024 Notes
 Fiscal 2022$900 $1,772 $— N/A
 Fiscal 2021900 1,792 — N/A
 Fiscal 2020900 1,824 — N/A
 Fiscal 2019900 2,042 —  N/A
 March 2025 Notes
 Fiscal 2022$600 $1,772 $— N/A
 Fiscal 2021600 1,792 — N/A
 Fiscal 2020600 1,824 — N/A
 Fiscal 2019600 2,042 —  N/A
 Fiscal 2018600 2,362 —  N/A
 July 2025 Notes
 Fiscal 2022$1,250 $1,772 $— N/A
 Fiscal 20211,250 1,792 — N/A
 Fiscal 2020750 1,824 — N/A

Class and Year		Total Amount Outstanding Exclusive of Treasury Securities(1)Asset Coverage Per Unit(2)Involuntary Liquidating Preference Per Unit(3)Average Market Value Per Unit(4)
January 2026 Notes
 Fiscal 2022$1,150 $1,772 $— N/A
 Fiscal 20211,150 1,792 — N/A
 Fiscal 20201,150 1,824 — N/A
July 2026 Notes
 Fiscal 2022$1,000 $1,772 $— N/A
 Fiscal 20211,000 1,792 — N/A
2027 Notes
Fiscal 2022$500 $1,772 $— N/A
2028 Notes
 Fiscal 2022$1,250 $1,772 $— N/A
 Fiscal 20211,250 1,792 — N/A
2031 Notes
 Fiscal 2022$700 $1,772 $— N/A
 Fiscal 2021700 1,792 — N/A
 2047 Notes
 Fiscal 2020$230 $1,824 $— $1,013 
 Fiscal 2019230 2,042 — 1,033 
 Fiscal 2018230 2,362 — 1,013 
 Fiscal 2017230 2,415 — 1,021 
 Fiscal 2016230 2,296 — 1,015 
 Fiscal 2015230 2,213 — 1,011 
 Fiscal 2014230 2,292 — 985 
 Fiscal 2013230 2,547 — 972 
_______________________________________________________________________________

(1)Total amount of each class of senior securities outstanding at principal value at the end of the period presented.

(2)The asset coverage ratio for a class of senior securities representing indebtedness is calculated as our consolidated total assets, less all liabilities and indebtedness not represented by senior securities, divided by total senior securities representing indebtedness. This asset coverage ratio is multiplied by $1,000 to determine the “Asset Coverage Per Unit” (including for the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, which were issued in $25 increments). In June 2016, we received exemptive relief from the SEC allowing us to modify the asset coverage requirements to exclude debentures issued by Ares Venture Finance, L.P. and guaranteed by the Small Business Administration (the “SBA”), subject to the issuance of a capital commitment by the SBA and other customary procedures (the “SBA Debentures”), from this calculation. As such, the asset coverage ratio beginning with Fiscal 2016 excludes the SBA Debentures. Certain prior year amounts have been reclassified to conform to the 2016 and 2017 presentation. In particular, unamortized debt issuance costs were previously included in other assets and were reclassified to long‑term debt as a result of the adoption of Accounting Standards Update 2015‑03, Interest-Imputation of Interest (Topic 835): Simplifying the Presentation of Debt Issuance Costs during the first quarter of 2016.

(3)The amount to which such class of senior security would be entitled upon our involuntary liquidation in preference to any security junior to it.

(4)Not applicable, except for with respect to the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, as other senior securities are not registered for public trading on a stock exchange. The average market value per unit for each of the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes is
based on the average daily prices of such notes and is expressed per $1,000 of indebtedness (including for the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, which were issued in $25 increments). 		                 
Senior Securities Averaging Method, Note [Text Block]                 The average market value per unit for each of the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes is based on the average daily prices of such notes and is expressed per $1,000 of indebtedness (including for the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, which were issued in $25 increments).                  
Senior Securities Headings, Note [Text Block]                 Total amount of each class of senior securities outstanding at principal value at the end of the period presented.The asset coverage ratio for a class of senior securities representing indebtedness is calculated as our consolidated total assets, less all liabilities and indebtedness not represented by senior securities, divided by total senior securities representing indebtedness. This asset coverage ratio is multiplied by $1,000 to determine the “Asset Coverage Per Unit” (including for the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, which were issued in $25 increments). In June 2016, we received exemptive relief from the SEC allowing us to modify the asset coverage requirements to exclude debentures issued by Ares Venture Finance, L.P. and guaranteed by the Small Business Administration (the “SBA”), subject to the issuance of a capital commitment by the SBA and other customary procedures (the “SBA Debentures”), from this calculation. As such, the asset coverage ratio beginning with Fiscal 2016 excludes the SBA Debentures. Certain prior year amounts have been reclassified to conform to the 2016 and 2017 presentation. In particular, unamortized debt issuance costs were previously included in other assets and were reclassified to long‑term debt as a result of the adoption of Accounting Standards Update 2015‑03, Interest-Imputation of Interest (Topic 835): Simplifying the Presentation of Debt Issuance Costs during the first quarter of 2016.The amount to which such class of senior security would be entitled upon our involuntary liquidation in preference to any security junior to it.Not applicable, except for with respect to the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, as other senior securities are not registered for public trading on a stock exchange. The average market value per unit for each of the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes is based on the average daily prices of such notes and is expressed per $1,000 of indebtedness (including for the February 2022 Notes, the October 2022 Notes, the 2040 Notes and the 2047 Notes, which were issued in $25 increments).                  
General Description of Registrant [Abstract]                                    
Investment Objectives and Practices [Text Block]                
Our investment objective is to generate both current income and capital appreciation through debt and equity investments. We invest primarily in U.S. middle-market companies, where we believe the supply of primary capital is limited and the investment opportunities are most attractive. However, we may from time to time invest in larger or smaller companies. We generally use the term “middle-market” to refer to companies with annual EBITDA between $10 million and $250 million. As used herein, EBITDA represents net income before net interest expense, income tax expense, depreciation and amortization.

We invest primarily in first lien senior secured loans (including “unitranche” loans, which are loans that combine both senior and subordinated debt, generally in a first lien position), and second lien senior secured loans. In addition to senior secured loans, we also invest in subordinated debt (sometimes referred to as mezzanine debt), which in some cases includes an equity component, and preferred equity. First and second lien senior secured loans generally are senior debt instruments that rank ahead of subordinated debt of a given portfolio company. Subordinated debt and preferred equity are subordinated to senior loans and are generally unsecured. Our investments in corporate borrowers generally range between $30 million and $500 million each. However, the investment sizes may be more or less than these ranges and may vary based on, among other things, our capital availability, the composition of our portfolio and general micro- and macro-economic factors.

To a lesser extent, we also make common equity investments, which have generally been non-control equity investments of less than $20 million (usually in conjunction with a concurrent debt investment). However, we may increase the size or change the nature of these investments.

The proportion of these types of investments will change over time given our views on, among other things, the economic and credit environment in which we are operating. In pursuit of our investment objective we generally seek to self-originate investments and lead the investment process.

The instruments in which we invest typically are not rated by any rating agency, but we believe that if such instruments were rated, they would be below investment grade (rated lower than “Baa3” by Moody’s Investors Service, lower than “BBB-” by Fitch Ratings or lower than “BBB-” by Standard & Poor’s Ratings Services), which, under the guidelines established by these entities, is an indication of having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. Bonds that are rated below investment grade are sometimes referred to as “high yield bonds” or “junk bonds.” We may invest without limit in debt or other securities of any rating, as well as debt or other securities that have not been rated by any nationally recognized statistical rating organization.

We believe that our investment adviser, Ares Capital Management, is able to leverage the current investment platform, resources and existing relationships of Ares Management with financial sponsors, financial institutions, hedge funds and other investment firms to provide us with attractive investment opportunities. For purposes of this document, we refer to Ares Management and its affiliated companies (other than portfolio companies of its affiliated funds) as “Ares.” In addition to deal flow, the Ares investment platform assists our investment adviser in analyzing, structuring and monitoring investments. Ares has been in existence for over 25 years and its partners have an average of approximately 25 years of experience in leveraged
finance, private equity, distressed debt, commercial real estate finance, investment banking and capital markets. We have access to Ares’ investment professionals and administrative professionals, who provide assistance in accounting, finance, legal, compliance, operations, information technology and investor relations. As of December 31, 2022, Ares had over 900 investment professionals and over 1,650 administrative professionals.

While our primary focus is to generate current income and capital appreciation through investments in first and second lien senior secured loans and subordinated debt and, to a lesser extent, equity securities of eligible portfolio companies, we also may invest up to 30% of our portfolio in non‑qualifying assets, as permitted by the Investment Company Act. Specifically, as part of this 30% basket, we may invest in entities that are not considered “eligible portfolio companies” (as defined in the Investment Company Act), including companies located outside of the United States, entities that are operating pursuant to certain exceptions under the Investment Company Act, and publicly traded entities whose public equity market capitalization exceeds the levels provided for under the Investment Company Act.
                  
Risk Factors [Table Text Block]                 Risk Factors
RISK FACTORS

You should carefully consider the risk factors described below, together with all of the other information included in this Annual Report, including our consolidated financial statements and the related notes thereto, before you decide whether to make an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results. If any of the following events occur, our business, financial condition and results of operations could be materially adversely affected. In such case, the net asset value of our common stock and the trading price, if any, of our securities could decline, and you may lose all or part of your investment.

RISK FACTOR SUMMARY

The following is a summary of the principal risks that you should carefully consider before investing in our securities.

•The capital markets may experience periods of disruption and instability, including supply chain disruption and inflation. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.

•Global economic, political and market conditions, including uncertainty about the financial stability of the United States, could have a significant adverse effect on our business, financial condition and results of operations.

•A failure on our part to maintain our status as a BDC may significantly reduce our operating flexibility and a failure to maintain our status as a RIC may subject us to additional corporate-level income taxes and reduce earnings available from which to pay dividends.

•We are dependent upon certain key personnel of Ares for our future success and upon their access to other Ares investment professionals.

•We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.

•We operate in a highly competitive market for investment opportunities.

•There are significant potential conflicts of interest that could impact our investment returns.

•We are exposed to risks associated with changes in interest rates, including the transition away from LIBOR and the adoption of alternative reference rates.

•Most of our portfolio investments are not publicly traded and, as a result, the fair value of these investments may not be readily determinable. Additionally, to the extent that we need liquidity and need to sell assets, the lack of liquidity in our investments may adversely affect our business.

•Our financial condition and results of operations could be negatively affected if a significant investment fails to perform as expected.

•Declines in market prices and liquidity in the corporate debt markets can result in significant net unrealized depreciation of our portfolio, which in turn would reduce our net asset value.

•Economic recessions or downturns could impair our portfolio companies and harm our operating results.

•Our investments, which are primarily in middle-market companies, may be risky and we could lose all or part of our investment.

•Our portfolio companies may be highly leveraged.

•Our shares of common stock may trade at a price above or below net asset value. If our common stock trades at a discount to net asset value, our ability to raise capital may be limited.
•Our ability to grow depends on our ability to raise capital.

•Our asset coverage requirement is 150%, which may increase the risk of investing with us.

•Cybersecurity risks and cyber incidents may adversely affect our business or the business of our portfolio companies by causing a disruption to our operations or the operations of our portfolio companies, a compromise or corruption of our confidential information or the confidential information of our portfolio companies and/or damage to our business relationships or the business relationships of our portfolio companies, all of which could negatively impact the business, financial condition and operating results of us or our portfolio companies.

RISKS RELATING TO OUR BUSINESS

The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.

From time to time, capital markets may experience periods of disruption and instability, including during portions of the past three fiscal years. In addition, between 2008 and 2009, the global capital markets were unstable as evidenced by periodic disruptions in liquidity in the debt capital markets, significant write-offs in the financial services sector, the re-pricing of credit risk in the broadly syndicated credit market and the failure of major financial institutions. Despite actions of the U.S. federal government and foreign governments, these events contributed to worsening general economic conditions that materially and adversely impacted the broader financial and credit markets and reduced the availability of debt and equity capital for the market as a whole and financial services firms in particular. There can be no assurance these market conditions will not continue or worsen in the future, including as a result of inflation and rising interest rates, the war in Ukraine and Russia, and health epidemics and pandemics, as discussed below.

Equity capital may be difficult to raise during such periods of adverse or volatile market conditions because, subject to some limited exceptions, as a BDC, we are generally not able to issue additional shares of our common stock at a price less than net asset value without first obtaining approval for such issuance from our stockholders and our independent directors. We generally seek approval from our stockholders so that we have the flexibility to issue up to 25% of our then outstanding shares of our common stock at a price below net asset value. Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023.

Volatility and dislocation in the capital markets can also create a challenging environment in which to raise or access debt capital. The reappearance of market conditions similar to those experienced during portions of the past three fiscal years and from 2008 through 2009 for any substantial length of time could make it difficult to extend the maturity of or refinance our existing indebtedness or obtain new indebtedness with similar terms and any failure to do so could have a material adverse effect on our business. The debt capital that will be available to us in the future, if at all, may be at a higher cost, including as a result of the current rising interest rate environment, and on less favorable terms and conditions than what we have historically experienced. If we are unable to raise or refinance debt, then our equity investors may not benefit from the potential for increased returns on equity resulting from leverage and we may be limited in our ability to make new commitments or to fund existing commitments to our portfolio companies.

Significant disruption or volatility in the capital markets may also have a negative effect on the valuations of our investments. While most of our investments are not publicly traded, applicable accounting standards require us to assume as part of our valuation process that our investments are sold in a principal market to market participants (even if we plan on holding an investment through its maturity). Significant disruption or volatility in the capital markets may also affect the pace of our investment activity and the potential for liquidity events involving our investments. Thus, the illiquidity of our investments may make it difficult for us to sell such investments to access capital if required, and as a result, we could realize significantly less than the value at which we have recorded our investments if we were required to sell them for liquidity purposes. An inability to raise or access capital could have a material adverse effect on our business, financial condition or results of operations.

We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.

General interest rate fluctuations may have a negative impact on our investments and our investment returns and, accordingly, may have a material adverse effect on our investment objective and our net investment income.
In an effort to combat inflation, the U.S. Federal Reserve has increased the federal funds rate in 2022 and is widely expected to further increase the federal funds rate in 2023. Because we borrow money and may issue debt securities or preferred stock to make investments, our net investment income is dependent upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. In this period of rising interest rates, our interest income will increase as the majority of our portfolio bears interest at variable rates while our cost of funds will also increase, to a lesser extent, given the majority of our indebtedness bears interest at fixed rates, with the net impact being an increase to our net investment income, see “Item 7A. Qualitative and Quantitative Disclosures About Market Risk.” Conversely, if interest rates decrease, we may earn less interest income from investments and our cost of funds will also decrease, to a lesser extent, resulting in lower net investment income. From time to time, we may also enter into certain hedging transactions to mitigate our exposure to changes in interest rates. In the past, we have entered into certain hedging transactions, such as interest rate swap agreements, to mitigate our exposure to adverse fluctuations in interest rates, and we may do so again in the future. However, we cannot assure you that such transactions will be successful in mitigating our exposure to interest rate risk. There can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income.

Our portfolio primarily consists of floating rate investments as opposed to fixed rate investments. Market prices tend to fluctuate more for fixed-rate securities that have longer maturities. Although we have no policy governing the maturities of our investments, under current market conditions we expect that we will invest in a portfolio of debt generally having maturities of up to 10 years. Market prices for debt that pays a fixed rate of return tend to decline as interest rates rise. This means that we are subject to greater risk (other things being equal) than a fund invested solely in shorter-term, fixed-rate securities. Market prices for floating rate investments may also fluctuate in rising rate environments with prices tending to decline when credit spreads widen. A decline in the prices of the debt we own could adversely affect our net assets resulting from operations and the market price of our common stock.

Rising interest rates may also increase the cost of debt for our underlying portfolio companies, which could adversely impact their financial performance and ability to meet ongoing obligations to us. Also, an increase in interest rates available to investors could make an investment in our common stock less attractive if we are not able to pay dividends at a level that provides a similar return, which could reduce the value of our common stock.

Inflation has adversely affected and may continue to adversely affect the business, results of operations and financial condition of our portfolio companies.

Certain of our portfolio companies are in industries that have been impacted by inflation. Recent inflationary pressures have increased the costs of labor, energy and raw materials and have adversely affected consumer spending, economic growth and our portfolio companies’ operations. If such portfolio companies are unable to pass any increases in their costs of operations along to their customers, it could adversely affect their operating results and impact their ability to pay interest and principal on our loans, particularly if interest rates rise in response to inflation. In addition, any projected future decreases in our portfolio companies’ operating results due to inflation could adversely impact the fair value of those investments. Any decreases in the fair value of our investments could result in future realized or unrealized losses and therefore reduce our net assets resulting from operations. Additionally, the Federal Reserve has raised, and has indicated its intent to continue raising, certain benchmark interest rates in an effort to combat inflation. See “—We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.”

The war in Ukraine and Russia may continue to have a material adverse impact on us and our portfolio companies.

On February 24, 2022, the President of Russia, Vladimir Putin, announced a military invasion of Ukraine. In response, countries worldwide, including the United States, have imposed sanctions against Russia on certain businesses and individuals, including, but not limited to, those in the banking, import and export sectors. This invasion has led, is currently leading, and for an unknown period of time will continue to lead to disruptions in local, regional, national, and global markets and economies affected thereby. These disruptions caused by the invasion have included, and may continue to include, political, social, and economic disruptions and uncertainties and material increases in certain commodity prices that may affect our business operations or the business operations of our portfolio companies.

A failure on our part to maintain our status as a BDC may significantly reduce our operating flexibility.

If we fail to maintain our status as a BDC, we might be regulated as a closed-end investment company that is required to register under the Investment Company Act, which would subject us to additional regulatory restrictions and significantly
decrease our operating flexibility. In addition, any such failure could cause an event of default under our outstanding indebtedness, which could have a material adverse effect on our business, financial condition or results of operations.

We are dependent upon certain key personnel of Ares for our future success and upon their access to other Ares investment professionals.

We depend on the diligence, skill, judgment, network of business contacts and personal reputations of certain key personnel of the Ares Credit Group and our future success depends on their continued service. We also depend, to a significant extent, on access to the investment professionals of other groups within Ares, the information and deal flow generated by Ares’ investment professionals in the course of their investment and portfolio management activities, as well as the support of senior business operations professionals of Ares.

The departure or misconduct of any of these individuals, or of a significant number of the investment professionals or partners of Ares, could have a material adverse effect on our business, financial condition or results of operations. In addition, we cannot assure you that Ares Capital Management will remain our investment adviser or that we will continue to have access to Ares’ investment professionals or its information and deal flow. Further, there can be no assurance that Ares Capital will replicate its own or Ares’ historical success, and we caution you that our investment returns could be substantially lower than the returns achieved by other Ares-managed funds.

Our financial condition and results of operations depend on our ability to manage future growth effectively.

Our ability to achieve our investment objective depends on our ability to acquire suitable investments and monitor and administer those investments, which depends, in turn, on our investment adviser’s ability to identify, invest in and monitor companies that meet our investment criteria.

Accomplishing this result on a cost-effective basis is largely a function of the structuring of our investment process and the ability of our investment adviser to provide competent, attentive and efficient services to us. Our executive officers and the members of our investment adviser’s investment committee have substantial responsibilities in connection with their roles at Ares and with the other Ares funds, including Ares Strategic Income Fund (“ASIF”), a non-traded BDC managed by our investment adviser, as well as responsibilities under the investment advisory and management agreement. They may also be called upon to provide significant managerial assistance to certain of our portfolio companies. These demands on their time, which will increase as the number of investments grow, may distract them or slow the rate of investment. In order for us to grow, Ares will need to hire, train, supervise, manage and retain new employees. However, we cannot assure you that Ares will be able to do so effectively. Any failure to manage our future growth effectively could have a material adverse effect on our business, financial condition and results of operations.

Our ability to grow depends on our ability to raise capital.

We will need to periodically access the capital markets to raise cash to fund new investments in excess of our repayments, and we may also need to access the capital markets to refinance existing debt obligations to the extent such maturing obligations are not repaid with availability under our revolving credit facilities or cash flows from operations. We have elected to be treated as a RIC and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. Among other things, in order to maintain our RIC status, we must distribute to our stockholders on a timely basis generally an amount equal to at least 90% of our investment company taxable income, and, as a result, such distributions will not be available to fund investment originations or repay maturing debt. We must continue to borrow from financial institutions and issue additional securities to fund our growth. Unfavorable economic or capital market conditions may increase our funding costs, limit our access to the capital markets or could result in a decision by lenders not to extend credit to us. An inability to successfully access the capital markets may limit our ability to refinance our existing debt obligations as they come due and/or to fully execute our business strategy and could limit our ability to grow or cause us to have to shrink the size of our business, which could decrease our earnings, if any. See “—The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.”

In addition, we are currently allowed to borrow amounts or issue debt securities or preferred stock, which we refer to collectively as “senior securities,” such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% immediately after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). Such requirement, in certain circumstances, may restrict our ability to borrow or issue debt securities or preferred stock. The amount of leverage that we employ will depend on our investment adviser’s and our board of directors’ assessments of market and other factors at the time of any proposed borrowing or issuance of senior securities. We cannot assure you that we will be able to maintain or increase
the amount available to us under our current Facilities (as defined below), obtain other lines of credit or issue senior securities at all or on terms acceptable to us.
Regulations governing our operation as a BDC affect our ability to, and the way in which we, raise additional capital.

We may issue senior securities or borrow money from banks or other financial institutions, up to the maximum amount permitted by the Investment Company Act. As a BDC, we are currently permitted to incur indebtedness or issue senior securities only in amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after each such incurrence or issuance (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). If the value of our assets declines, we may be unable to satisfy this test, which may prohibit us from paying dividends and could prevent us from maintaining our status as a RIC or may prohibit us from repurchasing shares of our common stock. In addition, our inability to satisfy this test could cause an event of default under our existing indebtedness. If we cannot satisfy this test, we may be required to sell a portion of our investments at a time when such sales may be disadvantageous and, depending on the nature of our leverage, repay a portion of our indebtedness. Accordingly, any failure to satisfy this test could have a material adverse effect on our business, financial condition or results of operations. As of December 31, 2022, our asset coverage calculated in accordance with the Investment Company Act was 177%. Also, to generate cash for funding new investments, we may in the future seek to issue additional debt or to securitize certain of our loans. The Investment Company Act may impose restrictions on the structure of any such securitization.

We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, or warrants, options or rights to acquire our common stock, at a price below the current net asset value per share of our common stock if our board of directors determines that such sale is in our best interests and the best interests of our stockholders, and our stockholders approve such sale. Any such sale would be dilutive to the net asset value per share of our common stock. In any such case, the price at which our securities are to be issued and sold may not be less than a price that, in the determination of our board of directors, closely approximates the market value of such securities (less any commission or discount). If our common stock trades at a discount to net asset value, this restriction could adversely affect our ability to raise capital.

Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023.
We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.

Borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in our securities. We currently borrow under the Facilities and have issued or assumed other senior securities, and in the future may borrow from, or issue additional senior securities to, banks, insurance companies, funds, institutional investors and other lenders and investors. Lenders and holders of such senior securities have fixed dollar claims on our consolidated assets that are superior to the claims of our common stockholders or any preferred stockholders. If the value of our consolidated assets increases, then leveraging would cause the net asset value per share of our common stock to increase more sharply than it would have had we not incurred leverage.

Conversely, if the value of our consolidated assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not incurred leverage. Similarly, any increase in our consolidated income in excess of consolidated interest payable on the borrowed funds would cause our net income to increase more than it would had we not incurred leverage, while any decrease in our consolidated income would cause net income to decline more sharply than it would have had we not incurred leverage. Such a decline could negatively affect our ability to make common stock dividend payments. There can be no assurance that a leveraging strategy will be successful.

As of December 31, 2022, we had approximately $3.7 billion of outstanding borrowings under the Facilities, approximately $403 million aggregate principal amount of unsecured convertible notes that mature on March 1, 2024 (the “2024 Convertible Notes”) and approximately $8.1 billion in aggregate principal amount outstanding of senior unsecured notes comprised of $750 million in aggregate principal amount of senior unsecured notes that mature on February 10, 2023 and bear interest at a rate of 3.500% (the “2023 Notes”), $900 million in aggregate principal amount of senior unsecured notes that mature on June 10, 2024 and bear interest at a rate of 4.200% (the “2024 Notes”), $600 million in aggregate principal amount of senior unsecured notes that mature on March 1, 2025 and bear interest at a rate of 4.250% (the “March 2025 Notes”), $1,250 million in aggregate principal amount of senior unsecured notes that mature on July 15, 2025 and bear interest at a rate of
3.250% (the “July 2025 Notes”), $1,150 million in aggregate principal amount of senior unsecured notes that mature on January 15, 2026 and bear interest at a rate of 3.875% (the “January 2026 Notes”), $1,000 million in aggregate principal amount of senior unsecured notes that mature on July 15, 2026 and bear interest at a rate of 2.150% (the “July 2026 Notes”), $500 million in aggregate principal amount of senior unsecured notes that mature on June 15, 2027 and bear interest at a rate of 2.875% (the “2027 Notes”), $1,250 million in aggregate principal amount of senior unsecured notes that mature on June 15, 2028 and bear interest at a rate of 2.875% (the “2028 Notes”) and $700 million in aggregate principal amount of senior unsecured notes that mature on November 15, 2031 and bear interest at a rate of 3.200% (the “2031 Notes” and together with the 2023 Notes, the 2024 Notes, the March 2025 Notes, the July 2025 Notes, the January 2026 Notes, the July 2026 Notes, the 2027 Notes, the 2028 Notes, the “Unsecured Notes”). In order for us to cover our annual interest payments on our outstanding indebtedness at December 31, 2022, we must achieve annual returns on our December 31, 2022 total assets of at least 2.3%. The weighted average stated interest rate charged on our principal amount of outstanding indebtedness as of December 31, 2022 was 4.2%. We intend to continue borrowing under the Facilities in the future and we may increase the size of the Facilities or issue additional debt securities or other evidences of indebtedness (although there can be no assurance that we will be successful in doing so). For more information on our indebtedness, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources.” Our ability to service our debt depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures. The amount of leverage that we employ at any particular time will depend on our investment adviser’s and our board of directors’ assessments of market and other factors at the time of any proposed borrowing. We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us).

The Facilities, the 2024 Convertible Notes and the Unsecured Notes impose financial and operating covenants that restrict our business activities, including limitations that could hinder our ability to finance additional loans and investments or to make the distributions required to maintain our status as a RIC. A failure to renew the Facilities or to add new or replacement debt facilities or to issue additional debt securities or other evidences of indebtedness could have a material adverse effect on our business, financial condition and results of operations.

The following table illustrates the effect on return to a holder of our common stock of the leverage created by our use of borrowing at the weighted average stated interest rate of 4.2% as of December 31, 2022, together with (a) our total value of net assets as of December 31, 2022; (b) approximately $12.2 billion in aggregate principal amount of indebtedness outstanding as of December 31, 2022 and (c) hypothetical annual returns on our portfolio of minus 15% to plus 15%.

Assumed Return on Portfolio (Net of Expenses)(1)-15.00 %-10.00 %-5.00 %— %5.00 %10.00 %15.00 %
Corresponding Return to Common Stockholders(2)-40.51 %-28.79 %-17.07 %-5.35 %6.37 %18.10 %29.82 %
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(1)The assumed portfolio return is required by SEC regulations and is not a prediction of, and does not represent, our projected or actual performance. Actual returns may be greater or less than those appearing in the table. Pursuant to SEC regulations, this table is calculated as of December 31, 2022. As a result, it has not been updated to take into account any changes in assets or leverage since December 31, 2022.

(2)In order to compute the “Corresponding Return to Common Stockholders,” the “Assumed Return on Portfolio” is multiplied by the total value of our assets at December 31, 2022 to obtain an assumed return to us. From this amount, the interest expense (calculated by multiplying the weighted average stated interest rate of 4.2% by the approximately $12.2 billion of principal debt outstanding) is subtracted to determine the return available to stockholders. The return available to stockholders is then divided by the total value of our net assets as of December 31, 2022 to determine the “Corresponding Return to Common Stockholders.”

In addition to regulatory requirements that restrict our ability to raise capital, the Facilities, the 2024 Convertible Notes and the Unsecured Notes contain various covenants that, if not complied with, could accelerate repayment under the Facilities, the 2024 Convertible Notes and the Unsecured Notes, thereby materially and adversely affecting our liquidity, financial condition and results of operations.
The agreements governing the Facilities, the 2024 Convertible Notes and the Unsecured Notes require us to comply with certain financial and operational covenants. These covenants may include, among other things:
•restrictions on the level of indebtedness that we are permitted to incur in relation to the value of our assets;

•restrictions on our ability to incur liens; and

•maintenance of a minimum level of stockholders’ equity.

As of the date of this Annual Report, we are in compliance in all material respects with the covenants of the Facilities, the 2024 Convertible Notes and the Unsecured Notes. However, our continued compliance with these covenants depends on many factors, some of which are beyond our control. For example, depending on the condition of the public debt and equity markets and pricing levels, unrealized depreciation in our portfolio may increase in the future. Any such increase could result in our inability to comply with our obligation to restrict the level of indebtedness that we are able to incur in relation to the value of our assets or to maintain a minimum level of stockholders’ equity.

Accordingly, although we believe we will continue to be in compliance, there are no assurances that we will continue to comply with the covenants in the Facilities, the 2024 Convertible Notes and the Unsecured Notes. Failure to comply with these covenants could result in a default under the Facilities, the 2024 Convertible Notes or the Unsecured Notes, that, if we were unable to obtain a waiver from the lenders or holders of such indebtedness, as applicable, such lenders or holders could accelerate repayment under such indebtedness and thereby have a material adverse impact on our business, financial condition and results of operations.

We operate in a highly competitive market for investment opportunities.

A number of entities compete with us to make the types of investments that we make in middle-market companies. We compete with other BDCs, public and private funds, commercial and investment banks, commercial financing companies, insurance companies, hedge funds, and, to the extent they provide an alternative form of financing, private equity funds. Some of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. Some competitors may have a lower cost of funds and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than we do. Furthermore, many of our competitors are not subject to the regulatory restrictions that the Investment Company Act imposes on us as a BDC and that the Code imposes on us as a RIC. In addition, new competitors frequently enter the financing markets in which we operate. We cannot assure you that the competitive pressures we face will not have a material adverse effect on our business, financial condition and results of operations. Also, as a result of this competition, we may not be able to pursue attractive investment opportunities from time to time.

We do not seek to compete primarily based on the interest rates we offer and we believe that some of our competitors may make loans with interest rates that are comparable to or lower than the rates we offer. Rather, we compete with our competitors based on our existing investment platform, seasoned investment professionals, experience and focus on middle-market companies, disciplined investment philosophy, extensive industry focus and flexible transaction structuring. For a more detailed discussion of these competitive advantages, see “Business—Competitive Advantages.”

We may lose investment opportunities if we do not match our competitors’ pricing, terms and structure. The loss of such investment opportunities may limit our ability to grow or cause us to have to shrink the size of our portfolio, which could decrease our earnings. If we match our competitors’ pricing, terms and structure, we may experience decreased net interest income and increased risk of credit loss. As a result of operating in such a competitive environment, we may make investments that are on less favorable terms than what we may have originally anticipated, which may impact our return on these investments.

There are significant potential conflicts of interest that could impact our investment returns.

Conflicts may arise in allocating and structuring investments, time, services, expenses or resources among the investment activities of Ares funds (including ASIF), Ares, other Ares-affiliated entities and the employees of Ares. Certain of our executive officers and directors, and members of the investment committee of our investment adviser, serve or may serve as officers, directors or principals of other entities and affiliates of our investment adviser and investment funds managed by our investment adviser or its affiliates, including ASIF. These officers and directors will devote such portion of their time to our affairs as is required for the performance of their duties, but they are not required to devote all of their time to us. Accordingly, they may have obligations to investors in those entities, the fulfillment of which might not be in our or our stockholders’ best interests or may require them to devote time to services for other entities, which could interfere with the time available to provide services to us. Members of our investment adviser’s investment committee may have significant responsibilities for
other Ares funds, including ASIF. Similarly, although the professional staff of our investment adviser will devote as much time to the management of us as appropriate to enable our investment adviser to perform its duties in accordance with the investment advisory and management agreement, the investment professionals of our investment adviser may have conflicts in allocating their time and services among us, on the one hand, and investment vehicles managed by our investment adviser or one or more of its affiliates, on the other hand. These activities could be viewed as creating a conflict of interest insofar as the time and effort of the professional staff of our investment adviser and its officers and employees will not be devoted exclusively to our business but will instead be allocated between our business and the management of these other investment vehicles.

In addition, certain Ares funds may have investment objectives that compete or overlap with, and may from time to time invest in asset classes similar to those targeted by, Ares Capital. Consequently, we, on the one hand, and these other entities, on the other hand, may from time to time pursue the same or similar capital and investment opportunities. Ares and our investment adviser endeavor to allocate investment opportunities in a fair and equitable manner, and in any event consistent with any fiduciary duties owed to Ares Capital. Nevertheless, it is possible that we may not be given the opportunity to participate in certain investments made by investment funds managed by investment managers affiliated with Ares (including our investment adviser). In addition, there may be conflicts in the allocation of investments among us and the funds managed by investment managers affiliated with Ares (including our investment adviser) or one or more of our controlled affiliates or among the funds they manage, including investments made pursuant to the Co-Investment Exemptive Order. Further, such other Ares-managed funds may hold positions in portfolio companies in which Ares Capital has also invested. Such investments may raise potential conflicts of interest between Ares Capital and such other Ares-managed funds, particularly if Ares Capital and such other Ares-managed funds invest in different classes or types of securities or investments of the same underlying portfolio company. In that regard, actions may be taken by such other Ares-managed funds that are adverse to Ares Capital’s interests, including, but not limited to, during a restructuring, bankruptcy or other insolvency proceeding or similar matter occurring at the underlying portfolio company.

We have from time to time sold assets to IHAM and certain of the IHAM Vehicles and, as part of our investment strategy, we may offer to sell additional assets to vehicles managed by one or more of our affiliates (including IHAM) or we may purchase assets from vehicles managed by one or more of our affiliates (including IHAM). In addition, vehicles managed by one or more of our affiliates (including IHAM) may offer assets to or may purchase assets from one another. While assets may be sold or purchased at prices that are consistent with those that could be obtained from third parties in the marketplace, and although these types of transactions generally require approval of one or more independent parties, there may be an inherent conflict of interest in such transactions between us and funds managed by one of our affiliates (including our investment adviser).

We pay a base management fee, an income based fee and a capital gains incentive fee to our investment adviser, and reimburse our investment adviser for certain expenses it incurs. Ares, from time to time, incurs fees, costs, and expenses on behalf of more than one fund. To the extent such fees, costs, and expenses are incurred for the account or benefit of more than one fund, each such fund will typically bear an allocable portion of any such fees, costs, and expenses in proportion to the size of its investment in the activity or entity to which such expense relates (subject to the terms of each fund’s governing documents) or in such other manner as Ares considers fair and equitable under the circumstances such as the relative fund size or capital available to be invested by such funds. Where a fund’s governing documents do not permit the payment of a particular expense, Ares will generally pay such fund’s allocable portion of such expense. In addition, investors in our common stock will invest on a gross basis and receive distributions on a net basis after expenses, resulting in, among other things, a lower rate of return than one might achieve if distributions were made on a gross basis.

Our investment adviser’s base management fee is based on a percentage of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) and, consequently, our investment adviser may have conflicts of interest in connection with decisions that could affect our total assets, such as decisions as to whether to incur indebtedness or to make future investments. We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). Accordingly, our investment adviser may have conflicts of interest in connection with decisions to use increased leverage permitted under our asset coverage requirement applicable to senior securities, as the incurrence of such additional indebtedness would result in an increase in the base management fees payable to our investment adviser and may also result in an increase in the income based fees and capital gains incentive fees payable to our investment adviser.

The income based fees payable by us to our investment adviser that relate to our pre-incentive fee net investment income is computed and paid on income that may include interest that is accrued but not yet received in cash. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in
the calculation of such fee will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of the income based fees it received that were based on accrued interest that we never actually receive.

Our investment advisory and management agreement renews for successive annual periods if approved by our board of directors or by the affirmative vote of the holders of a majority of our outstanding voting securities, including, in either case, approval by a majority of our directors who are not “interested persons” of us as defined in Section 2(a)(19) of the Investment Company Act. However, both we and our investment adviser have the right to terminate the agreement without penalty upon 60 days’ written notice to the other party. Moreover, conflicts of interest may arise if our investment adviser seeks to change the terms of our investment advisory and management agreement, including, for example, the terms for compensation to our investment adviser. While any material change to the investment advisory and management agreement must be submitted to stockholders for approval under the Investment Company Act, we may from time to time decide it is appropriate to seek stockholder approval to change the terms of the agreement.

We are party to an administration agreement with our administrator, Ares Operations, a subsidiary of Ares Management, pursuant to which our administrator furnishes us with administrative services and we pay our administrator at cost our allocable portion of overhead and other expenses (including travel expenses) incurred by our administrator in performing its obligations under our administration agreement, including our allocable portion of the compensation, rent, and other expenses of certain of our officers (including our chief compliance officer, chief financial officer, chief accounting officer, general counsel, secretary, treasurer and assistant treasurer) and their respective staffs, but not investment professionals.

Our portfolio company, IHAM, is party to an administration agreement, referred to herein as the “IHAM administration agreement,” with Ares Operations. Pursuant to the IHAM administration agreement, our administrator provides IHAM with administrative services and IHAM reimburses our administrator for all of the actual costs associated with such services, including its allocable portion of our administrator’s overhead and the cost of our administrator’s officers and respective staff in performing its obligations under the IHAM administration agreement. Prior to entering into the IHAM administration agreement, IHAM was party to a services agreement with our investment adviser, pursuant to which our investment adviser provided similar services.

As a result of the arrangements described above, there may be times when the management team of Ares Management (including those members of management focused primarily on managing Ares Capital) has interests that differ from those of our stockholders, giving rise to a conflict. Additionally, the members of management focused on managing us will also manage other Ares funds, including ASIF, and, consequently, will need to devote significant attention and time to managing other Ares funds, in addition to us.

Our stockholders may have conflicting investment, tax and other objectives with respect to their investments in us. The conflicting interests of individual stockholders may relate to or arise from, among other things, the nature of our investments, the structure or the acquisition of our investments, and the timing of dispositions of our investments. As a consequence, conflicts of interest may arise in connection with decisions made by our investment adviser, including with respect to the nature or structuring of our investments, that may be more beneficial for one stockholder than for another stockholder, especially with respect to stockholders’ individual tax situations. In selecting and structuring investments appropriate for us, our investment adviser will consider the investment and tax objectives of the Company and our stockholders, as a whole, not the investment, tax or other objectives of any stockholder individually.

We may be subject to additional corporate-level income taxes if we fail to maintain our status as a RIC.

We have elected to be treated as a RIC under the Code and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. As a RIC, we generally will not pay U.S. federal corporate-level income taxes on our income and net capital gains that we distribute to our stockholders as dividends on a timely basis. We will be subject to U.S. federal corporate-level income tax on any undistributed income and/or gains. To maintain our status as a RIC, we must meet certain source of income, asset diversification and annual distribution requirements. We may also be subject to certain U.S. federal excise taxes, as well as state, local and foreign taxes.

To maintain our RIC status, we must timely distribute an amount equal to at least 90% of our investment company taxable income (as defined by the Code, which generally includes net ordinary income and net short term capital gains) to our stockholders (the “Annual Distribution Requirement”). We have the ability to pay a large portion of our dividends in shares of our stock, and as long as a portion of such dividend is paid in cash and other requirements are met, such stock dividends will be taxable as a dividend for U.S. federal income tax purposes. This may result in our U.S. stockholders having to pay tax on such dividends, even if no cash is received, and may result in our non-U.S. stockholders being subject to withholding tax in respect of amounts distributed in our stock. Because we use debt financing, we are subject to certain asset coverage ratio requirements
under the Investment Company Act and financial covenants under our indebtedness that could, under certain circumstances, restrict us from making distributions necessary to qualify as a RIC. If we are unable to obtain cash from other sources, we may fail to maintain our status as a RIC and, thus, may be subject to corporate-level income tax on all of our income and/or gains.

To maintain our status as a RIC, in addition to the Annual Distribution Requirement, we must also meet certain annual source of income requirements at the end of each taxable year and asset diversification requirements at the end of each calendar quarter. Failure to meet these requirements may result in our having to (a) dispose of certain investments quickly or (b) raise additional capital to prevent the loss of RIC status. Because most of our investments are in private companies and are generally illiquid, any such dispositions may be at disadvantageous prices and may result in losses. Also, the rules applicable to our qualification as a RIC are complex with many areas of uncertainty. Accordingly, no assurance can be given that we have qualified or will continue to qualify as a RIC. If we fail to maintain our status as a RIC for any reason and become subject to regular “C” corporation income tax, the resulting corporate-level income taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions. Such a failure would have a material adverse effect on us and on any investment in us. Certain provisions of the Code provide some relief from RIC disqualification due to failures of the source of income and asset diversification requirements, although there may be additional taxes due in such cases. We cannot assure you that we would qualify for any such relief should we fail the source of income or asset diversification requirements.

We may have difficulty paying our required distributions under applicable tax rules if we recognize income before or without receiving cash representing such income.

For U.S. federal income tax purposes, we may be required to include in income certain amounts that we have not yet received in cash, such as original issue discount, which may arise, for example, if we receive warrants in connection with the making of a loan, or PIK interest representing contractual interest added to the loan principal balance and due at the end of the loan term. Such original issue discount or PIK interest is included in income before we receive any corresponding cash payments. We also may be required to include in income certain other amounts that we will not receive in cash, including, for example, amounts attributable to hedging and foreign currency transactions.

Since, in certain cases, we may recognize income before or without receiving cash in respect of such income, we may have difficulty meeting the U.S. federal income tax requirement to distribute generally an amount equal to at least 90% of our investment company taxable income to maintain our status as a RIC. Accordingly, we may have to sell some of our investments at times we would not consider advantageous, raise additional debt or equity capital or reduce new investment originations to meet these distribution requirements. If we are not able to obtain cash from other sources, we may fail to qualify as a RIC and thus be subject to additional corporate-level income taxes. Such a failure could have a material adverse effect on us and on any investment in us.

Most of our portfolio investments are not publicly traded and, as a result, the fair value of these investments may not be readily determinable.

A large percentage of our portfolio investments are not publicly traded. The fair value of investments that are not publicly traded may not be readily determinable. We value these investments quarterly at fair value as determined in good faith by our investment adviser, as the valuation designee, subject to the oversight of our board of directors, based on, among other things, the input of independent third-party valuation firms that have been engaged to support the valuation of such portfolio investments at least once during a trailing 12-month period (with certain de minimis exceptions). The valuation process is conducted at the end of each fiscal quarter by our investment adviser, and a portion of our investment portfolio at fair value is subject to review by an independent third-party valuation firm each quarter. However, we may use these independent valuation firms to review the value of our investments more frequently, including in connection with the occurrence of significant events or changes in value affecting a particular investment. In addition, our independent registered public accounting firm obtains an understanding of, and performs select procedures relating to, our valuation process within the context of performing our integrated audit.

The types of factors that may be considered in valuing our investments include the enterprise value of the portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flows, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to similar publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we consider the pricing indicated by the external event to corroborate our valuation. Because
such valuations, and particularly valuations of private investments and private companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these investments existed and may differ materially from the values that we may ultimately realize. Our net asset value per share could be adversely affected if our determinations regarding the fair value of these investments are higher than the values that we realize upon disposition of such investments.

The lack of liquidity in our investments may adversely affect our business.

As we generally make investments in private companies, substantially all of these investments are subject to legal and other restrictions on resale or are otherwise less liquid than publicly traded securities. The illiquidity of our investments may make it difficult for us to sell such investments if the need arises. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we could realize significantly less than the value at which we have recorded our investments or could be unable to dispose of our investments in a timely manner. In addition, we may face other restrictions on our ability to liquidate an investment in a portfolio company to the extent that we or an affiliated manager of Ares has material non-public information regarding such portfolio company.

Our financial condition and results of operations could be negatively affected if a significant investment fails to perform as expected.

Our investment portfolio includes investments that may be significant individually or in the aggregate. If a significant investment in one or more companies fails to perform as expected, such a failure could have a material adverse effect on our business, financial condition and operating results, and the magnitude of such effect could be more significant than if we had further diversified our portfolio.

Our investment portfolio includes our investment in IHAM, a wholly owned portfolio company, which as of December 31, 2022, represented 10.1% of our total portfolio at fair value. In addition, for the year ended December 31, 2022, approximately 10.9% of our total investment income was earned from our investment in IHAM. For more information, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Portfolio and Investment Activity—Ivy Hill Asset Management, L.P.” and Note 4 to our consolidated financial statements for the year ended December 31, 2022.

We are subject to risks related to corporate social responsibility.
 
Our business (including that of our portfolio companies) faces increasing public scrutiny related to ESG activities, which are increasingly considered to contribute to reducing a company’s operational risk, market risk and reputational risk, which may in turn impact the long-term sustainability of a company’s performance. A variety of organizations measure the performance of companies on ESG topics, and the results of these assessments are widely publicized. In addition, investment in funds that specialize in companies that perform well in such assessments are increasingly popular, and major institutional investors have publicly emphasized the importance of such ESG measures to their investment decisions.

We risk damage to our brand and reputation if we fail to act responsibly in a number of areas, including, but not limited to diversity, equity and inclusion, human rights, climate change and environmental stewardship, corporate governance and considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the value of our brand, our relationship with existing and future portfolio companies, the cost of our operations and relationships with investors, all of which could adversely affect our business and results of operations.

However, regional and investor specific sentiment may differ in what constitutes a material positive or negative ESG corporate practice. There is no guarantee that Ares’ corporate social responsibility practices will uniformly fit every investor’s definition of best practices for all environmental, social and governance considerations across geographies and investor types.

Additionally, new regulatory initiatives related to ESG that are applicable to us and our portfolio companies could adversely affect our business. For example, in May 2018, the European Commission adopted an “action plan on financing sustainable growth.” The action plan is, among other things, designed to define and reorient investment toward sustainability. The action plan contemplates: establishing EU labels for green financial products; increasing disclosure requirements in the financial services sector around ESG and strengthening the transparency of companies on their ESG policies and introducing a ‘green supporting factor’ in the EU prudential rules for banks and insurance companies to incorporate climate risks into banks’ and insurance companies’ risk management policies. There is a risk that a significant reorientation in the market following the implementation of these and further measures could be adverse to our portfolio companies if they are perceived to be less valuable as a consequence of, e.g., their carbon footprint or “greenwashing” (i.e., the holding out of a product as having green
or sustainable characteristics where this is not, in fact, the case). We and our portfolio companies are subject to the risk that similar measures might be introduced in other jurisdictions in the future.

There is also a growing regulatory interest across jurisdictions in improving transparency regarding the definition, measurement and disclosure of ESG factors in order to allow investors to validate and better understand sustainability claims. In addition, in 2021 the SEC established an enforcement task force to look into ESG practices and disclosures by public companies and investment managers and has started to bring enforcement actions based on ESG disclosures not matching actual investment processes.

In addition, the SEC has announced that it is working on proposals for mandatory disclosure of certain ESG-related matters, including with respect to corporate and fund carbon emissions, board diversity and human capital management. At this time, there is uncertainty regarding the scope of such proposals or when they would become effective (if at all). Compliance with any new laws or regulations increases our regulatory burden and could make compliance more difficult and expensive, affect the manner in which we or our portfolio companies conduct our businesses and adversely affect our profitability.

We and our investment adviser could be the target of litigation or regulatory investigations.

We as well as our investment adviser and its affiliates participate in a highly regulated industry and are each subject to regulatory examinations in the ordinary course of business. There can be no assurance that we and our investment adviser and/or any of its affiliates will avoid regulatory investigation and possible enforcement actions stemming therefrom. Our investment adviser is a registered investment adviser and, as such, is subject to the provisions of the Advisers Act. We and our investment adviser are each, from time to time, subject to formal and informal examinations, investigations, inquiries, audits and reviews from numerous regulatory authorities both in response to issues and questions raised in such examinations or investigations and in connection with the changing priorities of the applicable regulatory authorities across the market in general.

Our investment adviser, its affiliates and/or any of their respective principals and employees could also be named as defendants in, or otherwise become involved in, litigation. Litigation and regulatory actions can be time-consuming and expensive and can lead to unexpected losses, which expenses and losses are often subject to indemnification by us. Legal proceedings could continue without resolution for long periods of time and their outcomes, which could materially and adversely affect the value of us or the ability of our investment adviser to manage us, are often impossible to anticipate. our investment adviser would likely be required to expend significant resources responding to any litigation or regulatory action related to it, and these actions could be a distraction to the activities of our investment adviser.

Our investment activities are subject to the normal risks of becoming involved in litigation by third parties. This risk would be somewhat greater if we were to exercise control or significant influence over a portfolio company’s direction. The expense of defending against claims by third parties and paying any amounts pursuant to settlements or judgments would, absent willful misfeasance, bad faith, gross negligence, or reckless disregard of the duties involved by our investment adviser, our administrator, or any of our officers, be borne by us and would reduce our net assets. Our investment adviser and others are indemnified by us in connection with such litigation, subject to certain conditions.

Changes in laws or regulations governing our operations or the operations of our portfolio companies, changes in the interpretation thereof or enacted laws or regulations could require changes to certain business practices of us or our portfolio companies, negatively impact the operations, cash flows or financial condition of us or our portfolio companies, impose additional costs on us or our portfolio companies or otherwise adversely affect our business or the business of our portfolio companies.

We and our portfolio companies are subject to regulation by laws and regulations at the local, state, federal and, in some cases, foreign levels. These laws and regulations, as well as their interpretation, may be changed from time to time, and new laws and regulations may be enacted. Accordingly, any change in these laws or regulations, changes in their interpretation, or enacted laws or regulations could require changes to certain business practices of us or our portfolio companies, negatively impact the operations, cash flows or financial condition of us or our portfolio companies, impose additional costs on us or our portfolio companies or otherwise adversely affect our business or the business of our portfolio companies.

Additionally, legislative or other actions relating to taxes could have a negative effect on us. The rules dealing with U.S. federal income taxation are constantly under review by legislators and by the Internal Revenue Service (“IRS”) and the U.S. Treasury Department. Previously, the Tax Cuts and Jobs Act of 2017 significantly changed U.S. tax law and tax rates. We cannot predict how future tax proposals and changes in the Tax Cuts and Jobs Act, or regulations or other guidance issued under it, might affect us, our business, our stockholders, or our portfolio companies in the long-term. New legislation and any
U.S. Treasury regulations, administrative interpretations or court decisions interpreting such legislation could significantly and negatively affect our ability to qualify for tax treatment as a RIC or the U.S. federal income tax consequences to us and our stockholders of such qualification, or could have other adverse consequences. Stockholders are urged to consult with their tax advisor regarding tax legislative, regulatory, or administrative developments and proposals and their potential effect on an investment in our securities.

The discontinuation of LIBOR may adversely affect the value of the LIBOR‑indexed, floating‑rate debt securities in our portfolio or the cost of our borrowings.

National and international regulators and law enforcement agencies have conducted investigations into a number of rates or indices that are deemed to be “reference rates.” Actions by such regulators and law enforcement agencies may result in changes to the manner in which certain reference rates are determined, their discontinuance, or the establishment of alternative reference rates. In particular, on July 27, 2017, the Chief Executive of the U.K. Financial Conduct Authority (the “FCA”), which regulates LIBOR, announced that the FCA will no longer persuade or compel banks to submit rates for the calculation of LIBOR after 2021. As of the date of this Annual Report, USD LIBOR is available in five settings (overnight, one-month, three-month, six-month and 12-month). The ICE Benchmark Administration (“IBA”) has stated that it will cease to publish all remaining USD LIBOR settings immediately following their publication on June 30, 2023, absent subsequent action by the relevant authorities. As of January 1, 2022, all non-USD LIBOR reference rates in all settings ceased to be published. There can be no assurance that non USD synthetic LIBOR or USD LIBOR will remain available in the future.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee (the “ARRC”), a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate (“SOFR”) as its preferred alternative rate for LIBOR. On December 6, 2021, the ARRC released a statement selecting and recommending forms of SOFR, along with associated spread adjustments and conforming changes, to replace references to 1-week and 2-month USD LIBOR. We expect that a substantial portion of our future floating rate investments will be linked to SOFR. At this time, it is not possible to predict the effect of the transition to SOFR. Although there have been an increasing number of issuances utilizing SOFR or the Sterling Over Night Index Average (“SONIA”) (the GBP-LIBOR nominated replacement alternative reference rate that is based on transactions), it is unknown whether SOFR or any other alternative reference rates will attain market acceptance as replacements for LIBOR.

Given the inherent differences between LIBOR and SOFR, or any other alternative reference rates that may be established, the transition from LIBOR may disrupt the overall financial markets and adversely affect the market for LIBOR‑based securities, including our portfolio of LIBOR‑indexed, floating‑rate debt securities, or the cost of our borrowings. In addition, changes or reforms to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on the market for LIBOR‑based securities, including the value and/or transferability of the LIBOR‑indexed, floating‑rate debt securities in our portfolio, or the cost of our borrowings. Additionally, if as currently expected LIBOR ceases to exist, we may need to renegotiate the credit agreements extending beyond June 30, 2023, with our credit facility lenders and our portfolio companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with SOFR or other alternative reference rates, which could require us to incur significant time and expense and may subject us to disputes or litigation over the appropriateness or comparability to the relevant replacement reference index. The transition from LIBOR to SOFR or other alternative reference rates may also introduce operational risks in our accounting, financial reporting, loan servicing, liability management and other aspects of our business. We are in the process of transitioning our investments and our borrowings from LIBOR to SOFR and we do not expect that the transition will have a material impact on our business, financial condition or results of operations.

Our investment adviser’s liability is limited under the investment advisory and management agreement, and we are required to indemnify our investment adviser against certain liabilities, which may lead our investment adviser to act in a riskier manner on our behalf than it would when acting for its own account.

Our investment adviser has not assumed any responsibility to us other than to render the services described in the investment advisory and management agreement, and it will not be responsible for any action of our board of directors in declining to follow our investment adviser’s advice or recommendations. Pursuant to the investment advisory and management agreement, our investment adviser and its members and their respective officers, managers, partners, agents, employees, controlling persons and members and any other persons affiliated with it will not be liable to us for their acts under the investment advisory and management agreement, absent willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties. We have agreed to indemnify, defend and protect our investment adviser and its members and their respective officers, managers, partners, agents, employees, controlling persons and members and any other persons or entities affiliated with it with respect to all damages, liabilities, costs and expenses arising out of or otherwise based upon the
performance of any of our investment adviser’s duties or obligations under the investment advisory and management agreement or otherwise as an investment adviser for us, and not arising out of willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties under the investment advisory and management agreement. These protections may lead our investment adviser to act in a riskier manner when acting on our behalf than it would when acting for its own account. See “Risk Factors—Risks Relating to Our Investments—Our investment adviser's fee structure may induce it to make certain investments on our behalf, including speculative investments.”

We may be obligated to pay our investment adviser certain fees even if we incur a loss.

Our investment adviser is entitled to income based fees for each fiscal quarter in an amount equal to a percentage of the excess of our pre-incentive fee net investment income for that quarter (before deducting any income based fee and capital gains incentive fees and certain other items) above a threshold return for that quarter. Our pre-incentive fee net investment income for income based fee purposes excludes realized and unrealized capital losses or depreciation and income taxes related to realized gains that we may incur in the fiscal quarter, even if such capital losses or depreciation and income taxes related to realized gains result in a net loss on our statement of operations for that quarter. Thus, we may be required to pay our investment adviser income based fees for a fiscal quarter even if there is a decline in the value of our portfolio or the net asset value of our common stock or we incur a net loss for that quarter.

Under the investment advisory and management agreement, we will defer cash payment of any income based fee and the capital gains incentive fee otherwise earned by our investment adviser if, during the most recent four full calendar quarter periods ending on or prior to the date such payment is to be made, the sum of (a) our aggregate distributions to our stockholders and (b) our change in net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period) is less than 7.0% of our net assets (defined as total assets less indebtedness) at the beginning of such period. These calculations will be adjusted for any share issuances or repurchases. Any such deferred fees will be carried over for payment in subsequent calculation periods to the extent such payment can then be made under the investment advisory and management agreement.

If a portfolio company defaults on a loan that is structured to provide interest, it is possible that accrued and unpaid interest previously used in the calculation of income based fees will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of income based fees it received that was based on accrued income that we never receive.

RISKS RELATING TO OUR INVESTMENTS

Declines in market prices and liquidity in the corporate debt markets can result in significant net unrealized depreciation of our portfolio, which in turn would reduce our net asset value.

As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at fair value as determined in good faith by our investment adviser, as the valuation designee, subject to the oversight of our board of directors. Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of our investments may differ significantly from the values that would have been used had a readily available market value existed for such investments, and the differences could be material. We may take into account the following types of factors, if relevant, in determining the fair value of our investments: the enterprise value of a portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to similar publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we use the pricing indicated by the external event to corroborate our valuation. While most of our investments are not publicly traded, applicable accounting standards require us to assume as part of our valuation process that our investments are sold in a principal market to market participants (even if we plan on holding an investment through its maturity). As a result, volatility in the capital markets can also adversely affect our investment valuations. Decreases in the market values or fair values of our investments are recorded as unrealized depreciation. The effect of all of these factors on our portfolio can reduce our net asset value (and, as a result our asset coverage calculation) by increasing net unrealized depreciation in our portfolio. Depending on market conditions, we could incur substantial realized and/or unrealized losses, which could have a material adverse effect on our business, financial condition or results of operations.
Economic recessions or downturns could impair our portfolio companies and harm our operating results.

The current macroeconomic environment is characterized by record-high inflation, supply chain challenges, labor shortages, high interest rates, foreign currency exchange volatility, volatility in global capital markets and growing recession risk. The risks associated with our and our portfolio companies’ businesses are more severe during periods of economic slowdown or recession.

Many of our portfolio companies may be susceptible to economic downturns or recessions and may be unable to repay our loans during these periods. Therefore, during these periods our non-performing assets may increase and the value of our portfolio may decrease if we are required to write down the values of our investments. Adverse economic conditions may also decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing investments and harm our operating results. We experienced to some extent such effects as a result of the economic downturn that occurred throughout portions of the past three fiscal years and from 2008 through 2009 and may experience such effects again in any future downturn or recession.

A portfolio company’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to defaults and, potentially, acceleration of the time when the loans are due and foreclosure on its assets representing collateral for its obligations, which could trigger cross defaults under other agreements and jeopardize our portfolio company’s ability to meet its obligations under the debt investments that we hold and the value of any equity securities we own. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting portfolio company.

Investments in privately held middle-market companies involve significant risks.

We primarily invest in privately held U.S. middle-market companies. Investments in privately held middle-market companies involve a number of significant risks, including the following:

•these companies may have limited financial resources and may be unable to meet their obligations, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing our investment;

•they typically have shorter operating histories, narrower product lines and smaller market shares than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns;

•they typically depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation or termination of one or more of these persons could have a material adverse effect on such portfolio company and, in turn, on us;

•there is generally little public information about these companies. These companies and their financial information are generally not subject to the Exchange Act (as defined below) and other regulations that govern public companies, and we may be unable to uncover all material information about these companies, which may prevent us from making a fully informed investment decision and cause us to lose money on our investments;

•they generally have less predictable operating results and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position;

•we, our executive officers, directors and our investment adviser may, in the ordinary course of business, be named as defendants in litigation arising from our investments in our portfolio companies and may, as a result, incur significant costs and expenses in connection with such litigation;

•changes in laws and regulations (including the tax laws), as well as their interpretations, may adversely affect their business, financial structure or prospects; and

•they may have difficulty accessing the capital markets to meet future capital needs.
Our debt investments may be risky and we could lose all or part of our investment.

The debt that we invest in is typically not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than “Baa3” by Moody’s Investors Service, lower than “BBB-” by Fitch Ratings or lower than “BBB-” by Standard & Poor’s Ratings Services), which under the guidelines established by these entities is an indication of having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. Bonds that are rated below investment grade are sometimes referred to as “high yield bonds” or “junk bonds.” Therefore, our investments may result in an above average amount of risk and volatility or loss of principal. While the debt we invest in is often secured, such security does not guarantee that we will receive principal and interest payments according to the terms of the loan, or that the value of any collateral will be sufficient to allow us to recover all or a portion of the outstanding amount of the loan should we be forced to enforce our remedies.

Some of the loans in which we may invest may be “covenant-lite” loans, which means the loans contain fewer covenants than other loans (in some cases, none) and may not include terms which allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. An investment by us in a covenant-lite loan may potentially hinder the ability to reprice credit risk associated with the issuer and reduce the ability to restructure a problematic loan and mitigate potential loss. We may also experience delays in enforcing our rights under covenant-lite loans. As a result of these risks, our exposure to losses may be increased, which could result in an adverse impact on our net income and net asset value.

We also may invest in assets other than first and second lien and subordinated debt investments, including high-yield securities, U.S. government securities, credit derivatives and other structured securities and certain direct equity investments. These investments entail additional risks that could adversely affect our investment returns.

Investments in equity securities, many of which are illiquid with no readily available market, involve a substantial degree of risk.

We may purchase common and other equity securities. Although common stock has historically generated higher average total returns than fixed income securities over the long-term, common stock also has experienced significantly more volatility in those returns. The equity securities we acquire may fail to appreciate and may decline in value or become worthless and our ability to recover our investment will depend on the underlying portfolio company’s success. Investments in equity securities involve a number of significant risks, including:

•any equity investment we make in a portfolio company could be subject to further dilution as a result of the issuance of additional equity interests and to serious risks as a junior security that will be subordinate to all indebtedness (including trade creditors) or senior securities in the event that the issuer is unable to meet its obligations or becomes subject to a bankruptcy process;

•to the extent that the portfolio company requires additional capital and is unable to obtain it, we may not recover our investment; and

•in some cases, equity securities in which we invest will not pay current dividends, and our ability to realize a return on our investment, as well as to recover our investment, will be dependent on the success of the portfolio company. Even if the portfolio company is successful, our ability to realize the value of our investment may be dependent on the occurrence of a liquidity event, such as a public offering or the sale of the portfolio company. It is likely to take a significant amount of time before a liquidity event occurs or we can otherwise sell our investment. In addition, the equity securities we receive or invest in may be subject to restrictions on resale during periods in which it could be advantageous to sell them.

There are special risks associated with investing in preferred securities, including:

•preferred securities may include provisions that permit the issuer, at its discretion, to defer distributions for a stated period without any adverse consequences to the issuer. If we own a preferred security that is deferring its distributions, we may be required to report income for tax purposes before we receive such distributions;

•preferred securities are subordinated to debt in terms of priority to income and liquidation payments, and therefore will be subject to greater credit risk than debt;
•preferred securities may be substantially less liquid than many other securities, such as common stock or U.S. government securities; and

•generally, preferred security holders have no voting rights with respect to the issuing company, subject to limited exceptions.

Additionally, when we invest in first lien senior secured loans (including “unitranche” loans, which are loans that combine both senior and subordinated debt, generally in a first lien position), second lien senior secured loans or subordinated debt, we may acquire warrants or other equity securities as well. Our goal is ultimately to dispose of such equity interests and realize gains upon our disposition of such interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience.

We may invest, to the extent permitted by law, in the equity securities of investment funds that are operating pursuant to certain exceptions to the Investment Company Act and in advisers to similar investment funds and, to the extent we so invest, will bear our ratable share of any such company’s expenses, including management and performance fees. We will also remain obligated to pay the base management fee, income based fee and capital gains incentive fee to our investment adviser with respect to the assets invested in the securities and instruments of such companies. With respect to each of these investments, each of our common stockholders will bear his or her share of the base management fee, income based fee and capital gains incentive fee due to our investment adviser as well as indirectly bearing the management and performance fees and other expenses of any such investment funds or advisers.

There may be circumstances in which our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

If one of our portfolio companies were to go bankrupt, even though we may have structured our interest as senior debt, depending on the facts and circumstances, a bankruptcy court might recharacterize our debt holding as an equity investment and subordinate all or a portion of our claim to that of other creditors. In addition, lenders can be subject to lender liability claims for actions taken by them where they become too involved in the borrower’s business or exercise control over the borrower. For example, we could become subject to a lender’s liability claim, if, among other things, we actually render significant managerial assistance.

Our portfolio companies may incur debt or issue equity securities that rank equally with, or senior to, our investments in such companies.

Our portfolio companies may have, or may be permitted to incur, other debt, or issue other equity securities, that rank equally with, or senior to, our investments. By their terms, such instruments may provide that the holders are entitled to receive payment of dividends, interest or principal on or before the dates on which we are entitled to receive payments in respect of our investments. These debt instruments would usually prohibit the portfolio companies from paying interest on or repaying our investments in the event and during the continuance of a default under such debt. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of securities ranking senior to our investment in that portfolio company typically are entitled to receive payment in full before we receive any distribution in respect of our investment. After repaying such holders, the portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of securities ranking equally with our investments, we would have to share on an equal basis any distributions with other security holders in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

The rights we may have with respect to the collateral securing any junior priority loans we make to our portfolio companies may also be limited pursuant to the terms of one or more intercreditor agreements (including agreements governing “first out” and “last out” structures) that we enter into with the holders of senior debt. Under such an intercreditor agreement, at any time that senior obligations are outstanding, we may forfeit certain rights with respect to the collateral to the holders of the senior obligations. These rights may include the right to commence enforcement proceedings against the collateral, the right to control the conduct of such enforcement proceedings, the right to approve amendments to collateral documents, the right to release liens on the collateral and the right to waive past defaults under collateral documents. We may not have the ability to control or direct such actions, even if as a result our rights as junior lenders are adversely affected.

When we are a debt or minority equity investor in a portfolio company, we are often not in a position to exert influence on the entity, and other equity holders and management of the company may make decisions that could decrease the value of our investment in such portfolio company.
When we make debt or minority equity investments, we are subject to the risk that a portfolio company may make business decisions with which we disagree and the other equity holders and management of such company may take risks or otherwise act in ways that do not serve our interests. As a result, a portfolio company may make decisions that could decrease the value of our investment.

Our portfolio companies may be highly leveraged.

Some of our portfolio companies may be highly leveraged, which may have adverse consequences to these companies and to us as an investor. These companies may be subject to restrictive financial and operating covenants and the leverage may impair these companies’ ability to finance their future operations and capital needs. As a result, these companies’ flexibility to respond to changing business and economic conditions and to take advantage of business opportunities may be limited. Further, a leveraged company’s income and net assets will tend to increase or decrease at a greater rate than if borrowed money were not used.

Our investment adviser’s fee structure may induce it to make certain investments on our behalf, including speculative investments.

The fees payable by us to our investment adviser may create an incentive for our investment adviser to make investments on our behalf that are risky or more speculative than would be the case in the absence of such compensation arrangement. The way in which income based fees payable to our investment adviser are determined, which are calculated as a percentage of the return on invested capital, may encourage our investment adviser to use leverage to increase the return on our investments. Under certain circumstances, the use of leverage may increase the likelihood of default, which would disfavor the holders of our common stock and the holders of securities convertible into our common stock. In addition, our investment adviser will receive the capital gains incentive fee based, in part, upon net capital gains realized on our investments. Unlike income based fees, there is no hurdle rate applicable to the capital gains incentive fee. As a result, our investment adviser may have a tendency to invest more in investments that are likely to result in capital gains as compared to income producing securities. Such a practice could result in our investing in more speculative securities than would otherwise be the case, which could result in higher investment losses, particularly during economic downturns.

The income based fees are computed and paid on income that has been accrued but not yet received in cash, including as a result of investments with a deferred interest feature such as debt instruments with PIK interest, preferred stock with PIK dividends and zero coupon securities. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in the calculation of the income based fee will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of the fees it received that were based on such accrued interest that we never actually received.

Because of the structure of the income based fees, it is possible that we may have to pay income based fees in a quarter during which we incur a loss. For example, if we receive pre-incentive fee net investment income in excess of the hurdle rate for a quarter, we will pay the applicable income based fees even if we have incurred a loss in that quarter due to realized and/or unrealized capital losses. In addition, if market interest rates rise, our investment adviser may be able to invest our funds in debt instruments that provide for a higher return, which would increase our pre-incentive fee net investment income and make it easier for our investment adviser to surpass the fixed hurdle rate and receive income based fees.

Our investments in foreign companies or investments denominated in foreign currencies may involve significant risks in addition to the risks inherent in U.S. and U.S. denominated investments.

Our investment strategy contemplates potential investments in foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes (potentially at confiscatory levels), less liquid markets, less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

Although we expect most of our investments will be U.S. dollar denominated, our investments that are denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital
appreciation and political developments. We may employ hedging techniques to minimize these risks, but we cannot assure you that such strategies will be effective or without risk to us.

Certain of our portfolio companies’ businesses could be adversely affected by the effects of health pandemics or epidemics, including the ongoing COVID-19 pandemic, which has had, and may continue to have, a negative impact on our and our portfolio companies’ businesses and operations.

Certain of our portfolio companies’ businesses could be adversely affected by the effects of health pandemics or epidemics, including the ongoing COVID-19 global pandemic, the evolution of which continues to be uncertain. Recurring COVID-19 outbreaks around the world have heightened concerns relating to new and potentially more dangerous virus variants, which, if transmitted around the globe could lead to the re-introduction of restrictions that were in place in 2020, 2021, and to a lesser extent in 2022, or even the adoption of other more strict measures to combat outbreaks. Another severe outbreak of COVID-19 or another pandemic can disrupt our and our portfolio companies’ businesses and materially and adversely impact our and/or their financial results.

The COVID-19 pandemic contributed to certain conditions associated with the current macroeconomic environment and caused significant disruptions and instabilities in the global and U.S. financial markets or deteriorations in credit and financing conditions. A resurgence of COVID-19 or another pandemic with effects similar to those of COVID-19 may adversely affect our and our portfolio companies’ liquidity positions.

We may expose ourselves to risks if we engage in hedging transactions.

We have and may in the future enter into hedging transactions, which may expose us to risks associated with such transactions. We may utilize instruments such as forward contracts, currency options and interest rate swaps, caps, collars and floors to seek to hedge against fluctuations in the relative values of our portfolio positions from changes in currency exchange rates and market interest rates. Use of these hedging instruments may include counter-party credit risk.

Hedging against a decline in the values of our portfolio positions does not eliminate the possibility of fluctuations in the values of such positions or prevent losses if the values of such positions decline. However, such hedging can establish other positions designed to gain from those same developments, thereby offsetting the decline in the value of such portfolio positions. Such hedging transactions may also limit the opportunity for gain if the values of the underlying portfolio positions should increase. Moreover, it may not be possible to hedge against an exchange rate or interest rate fluctuation that is so generally anticipated that we are not able to enter into a hedging transaction at an acceptable price.

The success of our hedging transactions will depend on our ability to correctly predict movements in currencies and interest rates. Therefore, while we may enter into such transactions to seek to reduce currency exchange rate and interest rate risks, unanticipated changes in currency exchange rates or interest rates may result in poorer overall investment performance than if we had not engaged in any such hedging transactions. In addition, the degree of correlation between price movements of the instruments used in a hedging strategy and price movements in the portfolio positions being hedged may vary. Moreover, for a variety of reasons, we may not seek to (or be able to) establish a perfect correlation between such hedging instruments and the portfolio holdings being hedged. Any such imperfect correlation may prevent us from achieving the intended hedge and expose us to risk of loss. In addition, it may not be possible to hedge fully or perfectly against currency fluctuations affecting the value of securities denominated in non-U.S. currencies because the value of those securities is likely to fluctuate as a result of factors not related to currency fluctuations. See also “Risk Factors—Risks Relating to Our Business—We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.”

In August 2022, Rule 18f-4 under the Investment Company Act, regarding the ability of a BDC (or a registered investment company) to use derivatives and other transactions that create future payment or delivery obligations (except reverse repurchase agreements and similar financing transactions), became effective. Under the new rule, BDCs that make significant use of derivatives are required to operate subject to a value-at-risk leverage limit, adopt a derivatives risk management program and appoint a derivatives risk manager, and comply with various testing and board reporting requirements. These new requirements apply unless the BDC qualifies as a “limited derivatives user,” as defined under the adopted rules. Under the new rule, a BDC may enter into an unfunded commitment agreement that is not a derivatives transaction, such as an agreement to provide financing to a portfolio company, if the BDC has, among other things, a reasonable belief, at the time it enters into such an agreement, that it will have sufficient cash and cash equivalents to meet its obligations with respect to all of its unfunded commitment agreements, in each case as it becomes due. We currently operate as a “limited derivatives user” which may limit our ability to use derivatives and/or enter into certain other financial contracts.
RISKS RELATING TO OUR COMMON STOCK AND PUBLICLY TRADED NOTES
Our shares of common stock have traded at a discount from net asset value and may do so again, which could limit our ability to raise additional equity capital.

Shares of closed‑end investment companies frequently trade at a market price that is less than the net asset value that is attributable to those shares. This characteristic of closed‑end investment companies is separate and distinct from the risk that our net asset value per share may decline. It is not possible to accurately predict whether any shares of our common stock will trade at, above, or below net asset value. In the recent past (including during portions of 2022 and much of 2020), the stocks of BDCs as an industry, including at times shares of our common stock, have traded below net asset value and during much of 2009 traded at near historic lows as a result of concerns over liquidity, leverage restrictions and distribution requirements. See “Risk Factors—Risks Relating to Our Business—The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.” When our common stock is trading below its net asset value per share, we will generally not be able to issue additional shares of our common stock at its market price without first obtaining approval for such issuance from our stockholders and our independent directors. Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we currently are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023.

There is a risk that investors in our common stock may not receive dividends or that our dividends may not grow over time and that investors in our debt securities may not receive all of the interest income to which they are entitled.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to make a specified level of cash distributions or year-to-year increases in cash distributions. If we declare a dividend and if more stockholders opt to receive cash distributions rather than participate in our dividend reinvestment plan, we may be forced to sell some of our investments in order to make cash dividend payments.

In addition, due to the asset coverage test applicable to us as a BDC, we may be limited in our ability to make distributions. Certain of the Facilities may also limit our ability to declare dividends if we default under certain provisions. Further, if we invest a greater amount of assets in non-income producing securities, it could reduce the amount available for distribution and may also inhibit our ability to make required interest payments to holders of our debt, which may cause a default under the terms of our debt agreements. Such a default could materially increase our cost of raising capital, as well as cause us to incur penalties under the terms of our debt agreements.

Provisions of the Maryland General Corporation Law and of our charter and bylaws could deter takeover attempts and have an adverse effect on the price of our common stock.

The Maryland General Corporation Law (the “MGCL”), our charter and our bylaws contain provisions that may discourage, delay or make more difficult a change in control of Ares Capital or the removal of our directors. We are subject to the Maryland Business Combination Act (the “Business Combination Act”), subject to any applicable requirements of the Investment Company Act. Our board of directors has adopted a resolution exempting from the Business Combination Act any business combination between us and any other person, subject to prior approval of such business combination by our board, including approval by a majority of our disinterested directors. If the resolution exempting business combinations is repealed or our board or disinterested directors do not approve a business combination, the Business Combination Act may discourage third parties from trying to acquire control of us and may increase the difficulty of consummating such an offer. Our bylaws exempt from the Maryland Control Share Acquisition Act (the “Control Share Acquisition Act”) acquisitions of our stock by any person. If we amend our bylaws to repeal the exemption from the Control Share Acquisition Act, subject to any applicable requirements of the Investment Company Act, the Control Share Acquisition Act also may make it more difficult for a third party to obtain control of us and may increase the difficulty of consummating such an offer.

We have also adopted measures that may make it difficult for a third party to obtain control of us, including provisions of our charter classifying our board of directors into three classes serving staggered three-year terms, and provisions of our charter authorizing our board of directors to classify or reclassify shares of our stock into one or more classes or series, to cause the issuance of additional shares of our stock, and to amend our charter from time to time, without stockholder approval, to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that we have authority to issue. These provisions, as well as other provisions of our charter and bylaws, may discourage, delay, defer, make more difficult or prevent a transaction or a change in control that might otherwise be in stockholders’ best interest.
Our bylaws designate the Circuit Court for Baltimore City, Maryland as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or other employees.
 
Our bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Circuit Court for Baltimore City, Maryland, or, if that Court does not have jurisdiction, the U.S. District Court for the District of Maryland, Baltimore Division, will be the sole and exclusive forum for: (i) any derivative action or proceeding brought on our behalf, (ii) any Internal Corporate Claim, as such term is defined in Section 1-101(p) of the MGCL, including, without limitation, (a) any action asserting a claim of breach of any duty owed by any of our directors or officers or other employees to us or to our stockholders or (b) any action asserting a claim against us or any of our directors or officers or other employees arising pursuant to any provision of the MGCL or our charter or bylaws or (iii) any action asserting a claim against us or any of our directors or officers or other employees that is governed by the internal affairs doctrine. Any person or entity purchasing or otherwise acquiring or holding any interest in our shares shall be deemed to have notice of and to have consented and waived any objection to this exclusive forum provision of our bylaws, as the same may be amended from time to time. Our board of directors, without stockholder approval, adopted this exclusive forum provision so that we can respond to such litigation more efficiently, reduce the costs associated with our responses to such litigation, particularly litigation that might otherwise be brought in multiple forums, and make it less likely that plaintiffs’ attorneys will be able to employ such litigation to coerce us into otherwise unjustified settlements. However, this exclusive forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that such stockholder believes is favorable for disputes with us or our directors, officers or other employees, if any, and may discourage lawsuits against us and our directors, officers or other employees, if any. We believe the risk of a court declining to enforce this exclusive forum provision is remote, as the General Assembly of Maryland has specifically amended the MGCL to authorize the adoption of such provision. However, if a court were to find such provision inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings notwithstanding that the MGCL expressly provides that the charter or bylaws of a Maryland corporation may require that any Internal Corporate Claim be brought only in courts sitting in one or more specified jurisdictions, we may incur additional costs that we do not currently anticipate associated with resolving such matters in other jurisdictions, which could adversely affect our business, financial condition and results of operations.

Investing in our common stock may involve an above average degree of risk.

The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and volatility or loss of principal. Our investments in portfolio companies may be highly speculative and aggressive and, therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

The market price of our common stock may fluctuate significantly.

The capital and credit markets have experienced periods of extreme volatility and disruption over the past several years (including throughout much of the past three fiscal years). The market price and liquidity of the market for shares of our common stock may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

•significant volatility in the market price and trading volume of securities of publicly traded RICs, BDCs or other companies in our sector, which are not necessarily related to the operating performance of these companies;

•price and volume fluctuations in the overall stock market from time to time;

•the inclusion or exclusion of our common stock from certain indices;

•changes in law, regulatory policies or tax guidelines, or interpretations thereof, particularly with respect to RICs or BDCs;

•loss of our RIC status;

•our ability to manage our capital resources effectively;

•changes in our earnings or variations in our operating results;

•changes in the value of our portfolio of investments;
•any shortfall in investment income or net investment income or any increase in losses from levels expected by investors or securities analysts;

•departure of Ares’ key personnel;

•short-selling pressure with respect to shares of our common stock or BDCs generally;

•future sales of our securities convertible into or exchangeable or exercisable for our common stock or the conversion of such securities, including the 2024 Convertible Notes;

•uncertainty surrounding the strength of the U.S. economy;

•uncertainty between the U.S. and other countries with respect to trade policies, treaties, and tariffs; and

•general economic trends and other external factors.

In the past, following periods of volatility in the market price of a company’s securities, securities class action litigation has often been brought against that company. If our stock price fluctuates significantly, we may be the target of securities litigation in the future. Securities litigation could result in substantial costs and divert management’s attention and resources from our business.

We may in the future determine to issue preferred stock, which could adversely affect the market value of our common stock.

The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the market price for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other payments to our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the Investment Company Act, preferred stock constitutes a “senior security” for purposes of the asset coverage test.

The net asset value per share of our common stock may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock.
At a special meeting of stockholders held on August 4, 2022, subject to certain determinations required to be made by our board of directors, our stockholders approved our ability to sell or otherwise issue shares of our common stock, in an amount not exceeding 25% of our then outstanding common stock, at a price below the then current net asset value per share during a period that began on August 4, 2022 and expires on August 4, 2023.
In addition, at our 2009 annual stockholders meeting, our stockholders approved a proposal authorizing us to sell or otherwise issue warrants or securities to subscribe for or convertible into shares of our common stock subject to certain limitations (including, without limitation, that the number of shares issuable does not exceed 25% of our then outstanding common stock and that the exercise or conversion price thereof is not, at the date of issuance, less than the greater of the market value per share and the net asset value per share of our common stock). The authorization granted to sell or issue warrants or securities to subscribe for or convertible into shares of our common stock has no expiration.
Any decision to sell shares of our common stock below its then current net asset value per share or securities to subscribe for or convertible into shares of our common stock would be subject to the determination by our board of directors that such issuance is in our and our stockholders’ best interests.
If we were to sell shares of our common stock below its then current net asset value per share, such sales would result in an immediate dilution to the net asset value per share of our common stock. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in the stockholders’ interest in our earnings and assets and their voting interest in us than the increase in our assets resulting
from such issuance. Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted.
In addition, if we issue warrants or securities to subscribe for or convertible into shares of our common stock, subject to certain limitations, the exercise or conversion price per share could be less than net asset value per share at the time of exercise or conversion (including through the operation of anti‑dilution protections). Because we would incur expenses in connection with any issuance of such securities, such issuance could result in a dilution of the net asset value per share at the time of exercise or conversion. This dilution would include reduction in net asset value per share as a result of the proportionately greater decrease in the stockholders’ interest in our earnings and assets and their voting interest than the increase in our assets resulting from such issuance.
Further, if our current stockholders do not purchase any shares to maintain their percentage interest when we issue new shares, regardless of whether such offering is above or below the then current net asset value per share, their voting power will be diluted.
Our stockholders will experience dilution in their ownership percentage if they opt out of our dividend reinvestment plan.

All dividends declared in cash payable to stockholders that are participants in our dividend reinvestment plan are automatically reinvested in shares of our common stock. As a result, our stockholders that opt out of our dividend reinvestment plan will experience dilution in their ownership percentage of our common stock over time.

Our stockholders may experience dilution upon the conversion of the 2024 Convertible Notes.
As of December 31, 2022, the 2024 Convertible Notes are convertible into shares of our common stock beginning on December 1, 2023 or, under certain circumstances, earlier. As of December 31, 2022, the conversion price of the 2024 Convertible Notes was effectively $19.68 per share, in each case taking into account certain de minimis adjustments that will be made on the conversion date and subject to further adjustment in certain circumstances. If we elect to deliver shares of common stock upon a conversion at the time our tangible book value per share exceeds the conversion price in effect at such time, our stockholders may incur dilution. In addition, our stockholders will experience dilution in their ownership percentage of common stock upon our issuance of common stock in connection with the conversion of the 2024 Convertible Notes and any dividends paid on our common stock will also be paid on shares issued in connection with such conversion after such issuance.
Our stockholders may receive shares of our common stock as dividends, which could result in adverse cash flow consequences to them.

In order to satisfy the Annual Distribution Requirement applicable to RICs, we have the ability to declare a large portion of a dividend in shares of our common stock instead of in cash. As long as a portion of such dividend is paid in cash (which portion could be as low as 20%) and certain requirements are met, the entire distribution would be treated as a dividend for U.S. federal income tax purposes. As a result, a stockholder would be taxed on 100% of the fair market value of the shares received as part of the dividend on the date a stockholder received it in the same manner as a cash dividend, even though most of the dividend was paid in shares of our common stock.

Sales of substantial amounts of our common stock in the public market may have an adverse effect on the market price of our common stock.

Sales of substantial amounts of our common stock, or the availability of such common stock for sale (including as a result of the conversion of our 2024 Convertible Notes into common stock), could adversely affect the prevailing market prices for our common stock. If this occurs and continues, it could impair our ability to raise additional capital through the sale of securities should we desire to do so.

The trading market or market value of our publicly issued debt securities may fluctuate.

Our publicly issued debt securities may or may not have an established trading market. We cannot assure holders of our debt securities that a trading market for our publicly issued debt securities will ever develop or be maintained if developed. In addition to our creditworthiness, many factors may materially adversely affect the trading market for, and market value of, our publicly issued debt securities. These factors include, but are not limited to, the following:

•the time remaining to the maturity of these debt securities;
•the outstanding principal amount of debt securities with terms identical to these debt securities;

•the ratings assigned by national statistical ratings agencies;

•the general economic environment;

•the supply of such debt securities trading in the secondary market, if any;

•the redemption or repayment features, if any, of these debt securities;

•the level, direction and volatility of market interest rates generally; and

•market rates of interest higher or lower than rates borne by the debt securities.

Holders of our debt securities should also be aware that there may be a limited number of buyers if and when they decide to sell their debt securities. This too may materially adversely affect the market value of the debt securities or the trading market for the debt securities.

Terms relating to redemption may materially adversely affect our noteholders’ return on any debt securities that we may issue.

If our noteholders’ debt securities are redeemable at our option, we may choose to redeem their debt securities at times when prevailing interest rates are lower than the interest rate paid on their debt securities. In addition, if our noteholders’ debt securities are subject to mandatory redemption, we may be required to redeem their debt securities also at times when prevailing interest rates are lower than the interest rate paid on their debt securities. In this circumstance, our noteholders may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as their debt securities being redeemed.

Our credit ratings may not reflect all risks of an investment in our debt securities.

Our credit ratings are an assessment by third parties of our ability to pay our obligations. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of our debt securities. Our credit ratings, however, may not reflect the potential impact of risks related to market conditions generally or other factors discussed above on the market value of or trading market for the publicly issued debt securities.

GENERAL RISK FACTORS

Global economic, political and market conditions, including uncertainty about the financial stability of the United States, could have a significant adverse effect on our business, financial condition and results of operations.

Downgrades by rating agencies to the U.S. government’s credit rating or concerns about its credit and deficit levels in general could cause interest rates and borrowing costs to rise, which may negatively impact both the perception of credit risk associated with our debt portfolio and our ability to access the debt markets on favorable terms. In addition, a decreased U.S. government credit rating could create broader financial turmoil and uncertainty, which may weigh heavily on our financial performance and the value of our common stock. U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns or a recession in the United States.

Deterioration in the economic conditions in the Eurozone and other regions or countries globally and the resulting instability in global financial markets may pose a risk to our business. Financial markets have been affected at times by a number of global macroeconomic events, including the following: large sovereign debts and fiscal deficits of several countries in Europe and in emerging markets jurisdictions, levels of non‑performing loans on the balance sheets of European banks, the effect of the United Kingdom (the “U.K.”) leaving the European Union (the “EU”), instability in the Chinese capital markets and the COVID-19 pandemic. Global market and economic disruptions have affected, and may in the future affect, the U.S. capital markets, which could adversely affect our business, financial condition or results of operations. We cannot assure you that market disruptions in Europe and other regions or countries, including the increased cost of funding for certain governments and financial institutions, will not impact the global economy, and we cannot assure you that assistance packages will be available, or if available, be sufficient to stabilize countries and markets in Europe or elsewhere affected by a financial crisis. To the extent uncertainty regarding any economic recovery in Europe or elsewhere negatively impacts consumer
confidence and consumer credit factors, our business, financial condition and results of operations could be significantly and adversely affected. Moreover, there is a risk of both sector-specific and broad-based corrections and/or downturns in the equity and credit markets. Any of the foregoing could have a significant impact on the markets in which we operate and could have a material adverse impact on our business prospects and financial condition.

Various social and political circumstances in the U.S. and around the world (including wars and other forms of conflict, terrorist acts, security operations and catastrophic events such as fires, floods, earthquakes, tornadoes, hurricanes and global health epidemics or outbreaks of infectious diseases), may also contribute to increased market volatility and economic uncertainties or deterioration in the U.S. and worldwide. Such events, including rising trade tensions between the United States and China, other uncertainties regarding actual and potential shifts in U.S. and foreign, trade, economic and other policies with other countries, the war in Ukraine and Russia, and health epidemics and pandemics, could adversely affect our business, financial condition or results of operations. These market and economic disruptions could negatively impact the operating results of our portfolio companies.

We may experience fluctuations in our quarterly results.

We could experience fluctuations in our quarterly operating results due to a number of factors, including the interest rates payable on the debt investments we make, the default rates on such investments, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.

We are dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect our liquidity, financial condition or results of operations.

Our business is dependent on our and third parties’ communications and information systems. Further, in the ordinary course of our business we or our investment adviser may engage certain third party service providers to provide us with services necessary for our business. Any failure or interruption of those systems or services, including as a result of the termination or suspension of an agreement with any third-party service providers, could cause delays or other problems in our business activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

•sudden electrical or telecommunications outages;

•natural disasters such as earthquakes, tornadoes and hurricanes;

•disease pandemics;

•events arising from local or larger scale political or social matters, including terrorist acts; and

•cyber-attacks.

These events, in turn, could have a material adverse effect on our business, financial condition and operating results and negatively affect the market price of our common stock and our ability to pay dividends to our stockholders.

Cybersecurity risks and cyber incidents may adversely affect our business or the business of our portfolio companies by causing a disruption to our operations or the operations of our portfolio companies, a compromise or corruption of our confidential information or the confidential information of our portfolio companies and/or damage to our business relationships or the business relationships of our portfolio companies, all of which could negatively impact the business, financial condition and operating results of us or our portfolio companies.

A cyber incident is considered to be any adverse event that threatens the confidentiality, integrity or availability of the information resources of us or our portfolio companies. The efficient operation of our business is dependent on computer hardware and software systems, as well as data processing systems and the secure processing, storage and transmission of information, all of which are potentially vulnerable to security breaches and cyber incidents or other data security breaches.
These incidents may be an intentional attack or an unintentional event and could involve gaining unauthorized access to our information systems or those of our portfolio companies for purposes of misappropriating assets, stealing confidential information, corrupting data or causing operational disruption. The risk of a security breach or disruption, particularly through cyber-attacks or cyber intrusions, including by computer hackers, nation-state affiliated actors, and cyber terrorists, has generally increased as the number, intensity and sophistication of attempted attacks and intrusions from around the world have increased. We and our investment adviser’s employees have been and expect to continue to be the target of fraudulent calls, emails and other forms of potentially malicious or otherwise negatively impacting activities and attempts to gain unauthorized access to confidential, personal or other sensitive information. The result of these incidents may include disrupted operations, misstated or unreliable financial data, liability for stolen assets or information, fines or penalties, investigations, increased cybersecurity protection and insurance costs, litigation, and damage to business relationships and reputations causing our business and results of operations to suffer.

The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. As our and our portfolio companies’ reliance on technology has increased, so have the risks posed to our information systems, both internal and those provided by Ares Management and third-party service providers, and the information systems of our portfolio companies. Ares Management has implemented processes, procedures and internal controls to help mitigate cybersecurity risks and cyber intrusions, but these measures, as well as our increased awareness of the nature and extent of a risk of a cyber incident, do not guarantee that a cyber incident will not occur and/or that our financial results, operations or confidential information will not be negatively impacted by such an incident. Even the most well-protected information, networks, systems and facilities remain potentially vulnerable because the techniques used in such attempted security breaches evolve and generally are not recognized until launched against a target, and in some cases are designed not to be detected and, in fact, may not be detected. Accordingly, we and our service providers may be unable to anticipate these techniques or to implement adequate security barriers or other preventative measures, and thus it is impossible for us and our service providers to entirely mitigate this risk. Cybersecurity risks require continuous and increasing attention and other resources from us to, among other actions, identify and quantify these risks, upgrade and expand our technologies, systems and processes to adequately address such risks. Such attention diverts time and other resources from other activities and there is no assurance that our efforts will be effective.

In addition, cybersecurity has become a top priority for global lawmakers and regulators, and some jurisdictions have proposed or enacted laws requiring companies to notify regulators and individuals of data security breaches involving certain types of personal data. In particular, state and federal laws and regulations related to cybersecurity compliance continue to evolve and change, which may require substantial investments in new technology, software and personnel, which could affect our profitability. These changes may also result in enhanced and unforeseen consequences for cyber-related breaches and incidents, which may further adversely affect our profitability. If we fail to comply with the relevant and increasing complex laws and regulations, we could suffer financial losses, a disruption of our business, liability to investors, regulatory intervention or reputational damage.

Ineffective internal controls could impact our business and operating results.

Our internal control over financial reporting may not prevent or detect misstatements because of its inherent limitations, including the possibility of human error, the circumvention or overriding of controls, or fraud. Even effective internal controls can provide only reasonable assurance with respect to the preparation and fair presentation of financial statements. If we fail to maintain the adequacy of our internal controls, including any failure to implement required new or improved controls, or if we experience difficulties in their implementation, our business and operating results could be harmed and we could fail to meet our financial reporting obligations.
                  
Effects of Leverage [Table Text Block]                
Assumed Return on Portfolio (Net of Expenses)(1)-15.00 %-10.00 %-5.00 %— %5.00 %10.00 %15.00 %
Corresponding Return to Common Stockholders(2)-40.51 %-28.79 %-17.07 %-5.35 %6.37 %18.10 %29.82 %
_______________________________________________________________________________

(1)The assumed portfolio return is required by SEC regulations and is not a prediction of, and does not represent, our projected or actual performance. Actual returns may be greater or less than those appearing in the table. Pursuant to SEC regulations, this table is calculated as of December 31, 2022. As a result, it has not been updated to take into account any changes in assets or leverage since December 31, 2022.

(2)In order to compute the “Corresponding Return to Common Stockholders,” the “Assumed Return on Portfolio” is multiplied by the total value of our assets at December 31, 2022 to obtain an assumed return to us. From this amount, the interest expense (calculated by multiplying the weighted average stated interest rate of 4.2% by the approximately $12.2 billion of principal debt outstanding) is subtracted to determine the return available to stockholders. The return available to stockholders is then divided by the total value of our net assets as of December 31, 2022 to determine the “Corresponding Return to Common Stockholders.”
                  
Return at Minus Ten [Percent]                 (28.79%)                  
Return at Minus Five [Percent]                 (17.07%)                  
Return at Zero [Percent]                 (5.35%)                  
Return at Plus Five [Percent]                 6.37%                  
Return at Plus Ten [Percent]                 18.10%                  
Effects of Leverage, Purpose [Text Block]                 The following table illustrates the effect on return to a holder of our common stock of the leverage created by our use of borrowing at the weighted average stated interest rate of 4.2% as of December 31, 2022, together with (a) our total value of net assets as of December 31, 2022; (b) approximately $12.2 billion in aggregate principal amount of indebtedness outstanding as of December 31, 2022 and (c) hypothetical annual returns on our portfolio of minus 15% to plus 15%.                  
Share Price [Table Text Block]                
PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

Our common stock is traded on The NASDAQ Global Select Market under the symbol “ARCC.” Our common stock has historically traded at prices both above and below our net asset value per share. It is not possible to predict whether our common stock will trade at, above or below net asset value. See “Risk Factors—Risks Relating to Our Common Stock and Publicly Traded Notes—Our shares of common stock have traded at a discount from net asset value and may do so again, which could limit our ability to raise additional equity capital.”
The following table sets forth, for each fiscal quarter for the fiscal years ended December 31, 2022 and 2021, the net asset value per share of our common stock, the range of high and low closing sales prices of our common stock, the closing sales price as a premium (discount) to net asset value and the dividends or distributions declared by us.

Net
Asset
Price Range
High
Sales Price
Premium
(Discount)
to Net Asset
Low
Sales Price
Premium
(Discount)
to Net Asset
Cash
Dividend
Per
Value(1)
High
Low
Value(2)
Value(2)
Share(3)
Year ended December 31, 2021
First Quarter
$17.45 $19.23 $16.51 10.20 %(5.39)%$0.40 
Second Quarter
$18.16 $19.97 $18.29 9.97 %0.72 %$0.40 
Third Quarter
$18.52 $20.43 $19.52 10.31 %5.40 %$0.41 
Fourth Quarter
$18.96 $21.70 $19.66 14.45 %3.69 %$0.41 
Year ended December 31, 2022
First Quarter
$19.03 $22.58 $19.70 18.65 %3.52 %$0.54 (4)
Second Quarter
$18.81 $22.44 $17.12 19.30 %(8.98)%$0.42 
Third Quarter
$18.56 $20.70 $16.84 11.53 %(9.27)%$0.43 
Fourth Quarter
$18.40 $19.76 $17.30 7.39 %(5.98)%$0.48 

_______________________________________________________________________________

(1)Net asset value per share is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on the date of the high and low closing sales prices. The net asset values shown are based on outstanding shares at the end of the relevant quarter.

(2)Calculated as the respective high or low closing sales price less net asset value, divided by net asset value (in each case, as of the applicable quarter).

(3)Represents the dividend or distribution declared in the relevant quarter.
(4)Consists of a quarterly dividend of $0.42 per share and additional quarterly dividends totaling $0.12 per share, all of which were declared in the first quarter of 2022 and paid on March 31, 2022, June 30, 2022, September 30, 2022 and December 29, 2022.
                  
Lowest Price or Bid $ 17.30 $ 16.84 $ 17.12 $ 19.70 $ 19.66 $ 19.52 $ 18.29 $ 16.51                    
Highest Price or Bid $ 19.76 $ 20.70 $ 22.44 $ 22.58 $ 21.70 $ 20.43 $ 19.97 $ 19.23                    
Highest Price or Bid, Premium (Discount) to NAV [Percent] 7.39% 11.53% 19.30% 18.65% 14.45% 10.31% 9.97% 10.20%                    
Lowest Price or Bid, Premium (Discount) to NAV [Percent] (5.98%) (9.27%) (8.98%) 3.52% 3.69% 5.40% 0.72% (5.39%)                    
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt [Table Text Block]                
Our debt obligations consisted of the following as of December 31, 2022 and 2021:
 As of December 31, 
 20222021 
(in millions)Total
Aggregate
Principal
Amount
Available/
Outstanding(1)		 Principal Amount OutstandingCarrying
Value		 Total
Aggregate
Principal
Amount
Available/
Outstanding(1)		 Principal Amount OutstandingCarrying
Value		 
Revolving Credit Facility$4,843 (2)$2,246 $2,246 $4,232 (2)$1,507 $1,507 
Revolving Funding Facility1,775 800 800 1,525 762 762 
SMBC Funding Facility800 (3)451 451 800 (3)401 401 
BNP Funding Facility300 245 245 300 — — 
2022 Convertible Notes— — — 388 388 388 (4)
2024 Convertible Notes403 403 399 (4)403 403 395 (4)
2023 Notes750 750 750 (4)750 750 748 (4)
2024 Notes900 900 898 (4)900 900 897 (4)
March 2025 Notes600 600 597 (4)600 600 596 (4)
July 2025 Notes1,250 1,250 1,258 (4)1,250 1,250 1,260 (4)
January 2026 Notes1,150 1,150 1,144 (4)1,150 1,150 1,143 (4)
July 2026 Notes1,000 1,000 991 (4)1,000 1,000 988 (4)
2027 Notes500 500 494 (4)— — — 
2028 Notes1,250 1,250 1,247 (4)1,250 1,250 1,246 (4)
2031 Notes700 700 690 (4)700 700 689 (4)
Total$16,221 $12,245 $12,210 $15,248 $11,061 $11,020 
________________________________________

(1)Represents the total aggregate amount committed or outstanding, as applicable, under such instrument. Borrowings under the committed Revolving Credit Facility, Revolving Funding Facility, SMBC Funding Facility and BNP Funding Facility (each as defined below) are subject to borrowing base and other restrictions.

(2)Provides for a feature that allows us, under certain circumstances, to increase the size of the Revolving Credit Facility (as defined below) to a maximum of $7.3 billion.

(3)Provides for a feature that allows ACJB (as defined below), under certain circumstances, to increase the size of the SMBC Funding Facility (as defined below) to a maximum of $1.0 billion.

(4)Represents the aggregate principal amount outstanding, less unamortized debt issuance costs and the net unaccreted/amortized discount or premium recorded upon issuance. In February 2022, we repaid in full the 2022 Convertible Notes (defined below) upon their maturity.

 The weighted average stated interest rate and weighted average maturity, both on aggregate principal amount outstanding, of all our debt outstanding as of December 31, 2022 were 4.2% and 3.6 years, respectively, and as of December 31, 2021 were 3.1% and 4.2 years, respectively.
 
The ratio of total principal amount of debt outstanding to stockholders’ equity as of December 31, 2022 was 1.29:1.00 compared to 1.26:1.00 as of December 31, 2021.
 
Revolving Credit Facility
 
We are party to a senior secured revolving credit facility (as amended and restated, the “Revolving Credit Facility”), that allows us to borrow up to $4.8 billion at any one time outstanding. The Revolving Credit Facility consists of a $1.1 billion term loan tranche and a $3.7 billion revolving tranche. For $1.0 billion of the term loan tranche, the stated maturity date is March 31, 2027. For $28 million of the term loan tranche, the stated maturity date is March 31, 2026. For the remaining $50 million of the term loan tranche, the stated maturity date is March 30, 2025. For $3.5 billion of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2026 and March 31, 2027, respectively. For $107 million of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2025 and March 31, 2026, respectively. For the remaining $150 million of the revolving tranche, the end of the revolving period and the stated maturity date are March 30, 2024 and March 30, 2025, respectively. The Revolving Credit Facility also provides for a feature that allows us, under certain circumstances, to increase the overall size of the Revolving Credit Facility to a maximum of $7.3 billion. The interest rate charged on the Revolving Credit Facility is based on Secured Overnight Financing Rate (“SOFR”) (or an alternative rate of interest for certain loans, commitments and/or other extensions of credit denominated in Sterling, Canadian Dollars, Euros and certain other foreign currencies) plus a credit spread adjustment of 0.10% and an applicable spread of either 1.75% or 1.875% or an “alternate base rate” (as defined in the agreements governing the Revolving Credit Facility) plus a credit spread adjustment of 0.10% and an applicable spread of either 0.75% or 0.875%, in each case, determined monthly based on the total amount of the borrowing base relative to the sum of (i) the greater of (a) the aggregate amount of revolving exposure and term loans outstanding under the Revolving Credit Facility and (b) 85% of the total commitments of the Revolving Credit Facility (or, if higher, the total revolving exposure) plus (ii) other debt, if any, secured by the same collateral as the Revolving Credit Facility. As of December 31, 2022, the applicable spread in effect was 1.75%. We are also required to pay a letter of credit fee of either 2.00% or 2.125% per annum on letters of credit issued, determined monthly based on the total amount of the borrowing base relative to the total commitments of the Revolving Credit Facility and other debt, if any, secured by the same collateral as the Revolving Credit Facility. Additionally, we are required to pay a commitment fee of 0.375% per annum on any unused portion of the Revolving Credit Facility. As of December 31, 2022, there was $2.2 billion outstanding under the Revolving Credit Facility and we were in compliance in all material respects with the terms of the Revolving Credit Facility.
 
Revolving Funding Facility
 
We and our consolidated subsidiary, Ares Capital CP Funding LLC (“Ares Capital CP”), are party to a revolving funding facility (as amended, the “Revolving Funding Facility”), that allows Ares Capital CP to borrow up to $1.8 billion at any one time outstanding. The Revolving Funding Facility is secured by all of the assets held by, and the membership interest in, Ares Capital CP. The end of the reinvestment period and the stated maturity date for the Revolving Funding Facility are December 29, 2024 and December 29, 2026, respectively. The interest rate charged on the Revolving Funding Facility is based on SOFR plus a credit spread adjustment of 0.10% or a “base rate” (as defined in the agreements governing the Revolving Funding Facility) plus an applicable spread of 1.90% per annum. Ares Capital CP is also required to pay a commitment fee of between 0.50% and 1.25% per annum depending on the size of the unused portion of the Revolving Funding Facility. As of December 31, 2022, there was $800 million outstanding under the Revolving Funding Facility and we and Ares Capital CP were in compliance in all material respects with the terms of the Revolving Funding Facility.

SMBC Funding Facility
 
We and our consolidated subsidiary, Ares Capital JB Funding LLC (“ACJB”), are party to a revolving funding facility (as amended, the “SMBC Funding Facility”), with ACJB, as the borrower, and Sumitomo Mitsui Banking Corporation, as the administrative agent and collateral agent, that allows ACJB to borrow up to $800 million at any one time outstanding. The SMBC Funding Facility also provides for a feature that allows ACJB, subject to receiving certain consents, to increase the overall size of the SMBC Funding Facility to $1.0 billion. The SMBC Funding Facility is secured by all of the assets held by ACJB. The end of the reinvestment period and the stated maturity date for the SMBC Funding Facility are May 28, 2024 and May 28, 2026, respectively. The reinvestment period and the stated maturity date are both subject to two one-year extensions by mutual agreement. The interest rate charged on the SMBC Funding Facility is based on an applicable spread of either 1.75% or 2.00% over LIBOR or 0.75% or 1.00% over a “base rate” (as defined in the agreements governing the SMBC Funding Facility), in each case, determined monthly based on the amount of the average borrowings outstanding under the SMBC Funding Facility. As of December 31, 2022, the applicable spread in effect was 1.75%. ACJB is also required to pay a commitment fee of between 0.50% and 1.00% per annum depending on the size of the unused portion of the SMBC Funding Facility. As of December 31, 2022, there was $451 million outstanding under the SMBC Funding Facility and we and ACJB were in compliance in all material respects with the terms of the SMBC Funding Facility.
  
BNP Funding Facility
 
We and our consolidated subsidiary, ARCC FB Funding LLC (“AFB”), are party to a revolving funding facility (as amended, the “BNP Funding Facility”) with AFB, as the borrower, and BNP Paribas, as the administrative agent and lender, that allows AFB to borrow up to $300 million at any one time outstanding. The BNP Funding Facility is secured by all of the assets held by AFB. The end of the reinvestment period and the stated maturity date for the BNP Funding Facility are June 11, 2023 and June 11, 2025, respectively. The reinvestment period and the stated maturity date are both subject to a one-year extension by mutual agreement. As of December 31, 2022, the interest rate charged on the BNP Funding Facility was based on three month LIBOR, or a “base rate” (as defined in the agreements governing the BNP Funding Facility) plus a margin of (i) 1.80% during the reinvestment period and (ii) 2.30% following the reinvestment period. Beginning on December 11, 2020, AFB is required to pay a commitment fee of between 0.00% and 1.25% per annum depending on the size of the unused portion of the BNP Funding Facility. As of December 31, 2022, there was $245 million outstanding under the BNP Funding Facility and we and AFB were in compliance in all material respects with the terms of the BNP Funding Facility. See “Recent Developments,” as well as Note 15 to our consolidated financial statements for the year ended December 31, 2022 for a subsequent event relating to the BNP Funding Facility.

Convertible Unsecured Notes
 
We have issued $403 million in aggregate principal amount of unsecured convertible notes that mature on March 1, 2024 (the “2024 Convertible Notes”) unless previously converted or repurchased in accordance with its terms. We do not have the right to redeem the 2024 Convertible Notes prior to maturity. The 2024 Convertible Notes bear interest at a rate of 4.625% per annum, payable semi-annually.

In certain circumstances, assuming the conversion date below has not already passed, the 2024 Convertible Notes will be convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, at the conversion rate (listed below as of December 31, 2022) subject to customary anti-dilution adjustments and the requirements of the indenture (the “2024 Convertible Notes Indenture”). Prior to the close of business on the business day immediately preceding the conversion date (listed below), holders may convert their 2024 Convertible Notes only under certain circumstances set forth in the 2024 Convertible Notes Indenture. On or after the conversion date until the close of business on the second scheduled trading day immediately preceding the maturity date for the 2024 Convertible Notes, holders may convert their 2024 Convertible Notes at any time. In addition, if we engage in certain corporate events as described in the 2024 Convertible Notes Indenture, holders of the 2024 Convertible Notes may require us to repurchase for cash all or part of the 2024 Convertible Notes at a repurchase price equal to 100% of the principal amount of the 2024 Convertible Notes to be repurchased, plus accrued and unpaid interest through, but excluding, the required repurchase date.

Certain key terms related to the convertible features for the 2024 Convertible Notes as of December 31, 2022 are listed below.
2024 Convertible Notes
Conversion premium15.0 %
Closing stock price at issuance$17.29 
Closing stock price dateMarch 5, 2019
Conversion price(1)$19.68 
Conversion rate (shares per one thousand dollar principal amount)(1)50.8028 
Conversion dateDecember 1, 2023
________________________________________

(1)Represents conversion price and conversion rate, as applicable, as of December 31, 2022, taking into account any applicable de minimis adjustments that will be made on the conversion date.
In February 2022, we repaid in full the $388 million in aggregate principal amount of unsecured convertible notes (the “2022 Convertible Notes”) upon their maturity at a premium in accordance with the terms of the indenture governing the 2022 Convertible Notes, resulting in a realized loss on the extinguishment of debt of $48 million. The 2022 Convertible Notes bore interest at a rate of 4.60% per year, payable semi-annually.

Unsecured Notes
 
We issued certain unsecured notes (each issuance of which is referred to herein using the “defined term” set forth under the “Unsecured Notes” column of the table below and collectively referred to as the “Unsecured Notes”), that pay interest semi-annually and all principal amounts are due upon maturity. Each of the Unsecured Notes may be redeemed in whole or in part at any time at our option at a redemption price equal to par plus a “make whole” premium, if applicable, as determined pursuant to the indentures governing each of the Unsecured Notes, plus any accrued and unpaid interest. Certain key terms related to the features for the Unsecured Notes as of December 31, 2022 are listed below.

(dollar amounts in millions)
Unsecured Notes		Aggregate Principal Amount IssuedInterest RateOriginal Issuance DateMaturity Date
2023 Notes$750 3.500%August 10, 2017February 10, 2023
2024 Notes$900 4.200%June 10, 2019June 10, 2024
March 2025 Notes$600 4.250%January 11, 2018March 1, 2025
July 2025 Notes$1,250 3.250%January 15, 2020July 15, 2025
January 2026 Notes$1,150 3.875%July 15, 2020January 15, 2026
July 2026 Notes$1,000 2.150%January 13, 2021July 15, 2026
2027 Notes$500 2.875%January 13, 2022June 15, 2027
2028 Notes$1,250 2.875%June 10, 2021June 15, 2028
2031 Notes$700 3.200%November 4, 2021November 15, 2031

See Note 5 to our consolidated financial statements for the year ended December 31, 2022 for more information on our debt obligations.

As of December 31, 2022, we were in compliance in all material respects with the terms of the 2024 Convertible Notes Indenture and the indentures governing the Unsecured Notes.

The 2024 Convertible Notes and the Unsecured Notes are our senior unsecured obligations and rank senior in right of payment to any future indebtedness that is expressly subordinated in right of payment to the 2024 Convertible Notes and the Unsecured Notes; equal in right of payment to our existing and future unsecured indebtedness that is not expressly subordinated; effectively junior in right of payment to any of our secured indebtedness (including existing unsecured indebtedness that we later secure) to the extent of the value of the assets securing such indebtedness; and structurally junior to all existing and future indebtedness (including trade payables) incurred by our subsidiaries, financing vehicles or similar facilities.
                  
Capital Markets May Experience Periods of Disruption And Instability [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.

From time to time, capital markets may experience periods of disruption and instability, including during portions of the past three fiscal years. In addition, between 2008 and 2009, the global capital markets were unstable as evidenced by periodic disruptions in liquidity in the debt capital markets, significant write-offs in the financial services sector, the re-pricing of credit risk in the broadly syndicated credit market and the failure of major financial institutions. Despite actions of the U.S. federal government and foreign governments, these events contributed to worsening general economic conditions that materially and adversely impacted the broader financial and credit markets and reduced the availability of debt and equity capital for the market as a whole and financial services firms in particular. There can be no assurance these market conditions will not continue or worsen in the future, including as a result of inflation and rising interest rates, the war in Ukraine and Russia, and health epidemics and pandemics, as discussed below.

Equity capital may be difficult to raise during such periods of adverse or volatile market conditions because, subject to some limited exceptions, as a BDC, we are generally not able to issue additional shares of our common stock at a price less than net asset value without first obtaining approval for such issuance from our stockholders and our independent directors. We generally seek approval from our stockholders so that we have the flexibility to issue up to 25% of our then outstanding shares of our common stock at a price below net asset value. Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023.

Volatility and dislocation in the capital markets can also create a challenging environment in which to raise or access debt capital. The reappearance of market conditions similar to those experienced during portions of the past three fiscal years and from 2008 through 2009 for any substantial length of time could make it difficult to extend the maturity of or refinance our existing indebtedness or obtain new indebtedness with similar terms and any failure to do so could have a material adverse effect on our business. The debt capital that will be available to us in the future, if at all, may be at a higher cost, including as a result of the current rising interest rate environment, and on less favorable terms and conditions than what we have historically experienced. If we are unable to raise or refinance debt, then our equity investors may not benefit from the potential for increased returns on equity resulting from leverage and we may be limited in our ability to make new commitments or to fund existing commitments to our portfolio companies.

Significant disruption or volatility in the capital markets may also have a negative effect on the valuations of our investments. While most of our investments are not publicly traded, applicable accounting standards require us to assume as part of our valuation process that our investments are sold in a principal market to market participants (even if we plan on holding an investment through its maturity). Significant disruption or volatility in the capital markets may also affect the pace of our investment activity and the potential for liquidity events involving our investments. Thus, the illiquidity of our investments may make it difficult for us to sell such investments to access capital if required, and as a result, we could realize significantly less than the value at which we have recorded our investments if we were required to sell them for liquidity purposes. An inability to raise or access capital could have a material adverse effect on our business, financial condition or results of operations.
                  
Risk Of Exposure To Changes In Interest Rates [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.

General interest rate fluctuations may have a negative impact on our investments and our investment returns and, accordingly, may have a material adverse effect on our investment objective and our net investment income.
In an effort to combat inflation, the U.S. Federal Reserve has increased the federal funds rate in 2022 and is widely expected to further increase the federal funds rate in 2023. Because we borrow money and may issue debt securities or preferred stock to make investments, our net investment income is dependent upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. In this period of rising interest rates, our interest income will increase as the majority of our portfolio bears interest at variable rates while our cost of funds will also increase, to a lesser extent, given the majority of our indebtedness bears interest at fixed rates, with the net impact being an increase to our net investment income, see “Item 7A. Qualitative and Quantitative Disclosures About Market Risk.” Conversely, if interest rates decrease, we may earn less interest income from investments and our cost of funds will also decrease, to a lesser extent, resulting in lower net investment income. From time to time, we may also enter into certain hedging transactions to mitigate our exposure to changes in interest rates. In the past, we have entered into certain hedging transactions, such as interest rate swap agreements, to mitigate our exposure to adverse fluctuations in interest rates, and we may do so again in the future. However, we cannot assure you that such transactions will be successful in mitigating our exposure to interest rate risk. There can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income.

Our portfolio primarily consists of floating rate investments as opposed to fixed rate investments. Market prices tend to fluctuate more for fixed-rate securities that have longer maturities. Although we have no policy governing the maturities of our investments, under current market conditions we expect that we will invest in a portfolio of debt generally having maturities of up to 10 years. Market prices for debt that pays a fixed rate of return tend to decline as interest rates rise. This means that we are subject to greater risk (other things being equal) than a fund invested solely in shorter-term, fixed-rate securities. Market prices for floating rate investments may also fluctuate in rising rate environments with prices tending to decline when credit spreads widen. A decline in the prices of the debt we own could adversely affect our net assets resulting from operations and the market price of our common stock.

Rising interest rates may also increase the cost of debt for our underlying portfolio companies, which could adversely impact their financial performance and ability to meet ongoing obligations to us. Also, an increase in interest rates available to investors could make an investment in our common stock less attractive if we are not able to pay dividends at a level that provides a similar return, which could reduce the value of our common stock.
                  
Risk Of Inflation [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Inflation has adversely affected and may continue to adversely affect the business, results of operations and financial condition of our portfolio companies.

Certain of our portfolio companies are in industries that have been impacted by inflation. Recent inflationary pressures have increased the costs of labor, energy and raw materials and have adversely affected consumer spending, economic growth and our portfolio companies’ operations. If such portfolio companies are unable to pass any increases in their costs of operations along to their customers, it could adversely affect their operating results and impact their ability to pay interest and principal on our loans, particularly if interest rates rise in response to inflation. In addition, any projected future decreases in our portfolio companies’ operating results due to inflation could adversely impact the fair value of those investments. Any decreases in the fair value of our investments could result in future realized or unrealized losses and therefore reduce our net assets resulting from operations. Additionally, the Federal Reserve has raised, and has indicated its intent to continue raising, certain benchmark interest rates in an effort to combat inflation. See “—We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.”
                  
Russian Invasion Of Ukraine [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The war in Ukraine and Russia may continue to have a material adverse impact on us and our portfolio companies.

On February 24, 2022, the President of Russia, Vladimir Putin, announced a military invasion of Ukraine. In response, countries worldwide, including the United States, have imposed sanctions against Russia on certain businesses and individuals, including, but not limited to, those in the banking, import and export sectors. This invasion has led, is currently leading, and for an unknown period of time will continue to lead to disruptions in local, regional, national, and global markets and economies affected thereby. These disruptions caused by the invasion have included, and may continue to include, political, social, and economic disruptions and uncertainties and material increases in certain commodity prices that may affect our business operations or the business operations of our portfolio companies.
                  
Risk Of Failure To Maintain Status As A BDC [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
A failure on our part to maintain our status as a BDC may significantly reduce our operating flexibility.

If we fail to maintain our status as a BDC, we might be regulated as a closed-end investment company that is required to register under the Investment Company Act, which would subject us to additional regulatory restrictions and significantly
decrease our operating flexibility. In addition, any such failure could cause an event of default under our outstanding indebtedness, which could have a material adverse effect on our business, financial condition or results of operations. 		                 
Risk Of Dependency On Key Personnel [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We are dependent upon certain key personnel of Ares for our future success and upon their access to other Ares investment professionals.

We depend on the diligence, skill, judgment, network of business contacts and personal reputations of certain key personnel of the Ares Credit Group and our future success depends on their continued service. We also depend, to a significant extent, on access to the investment professionals of other groups within Ares, the information and deal flow generated by Ares’ investment professionals in the course of their investment and portfolio management activities, as well as the support of senior business operations professionals of Ares.

The departure or misconduct of any of these individuals, or of a significant number of the investment professionals or partners of Ares, could have a material adverse effect on our business, financial condition or results of operations. In addition, we cannot assure you that Ares Capital Management will remain our investment adviser or that we will continue to have access to Ares’ investment professionals or its information and deal flow. Further, there can be no assurance that Ares Capital will replicate its own or Ares’ historical success, and we caution you that our investment returns could be substantially lower than the returns achieved by other Ares-managed funds.
                  
Risk Of Dependency On Ability To Manage Future Growth [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our financial condition and results of operations depend on our ability to manage future growth effectively.

Our ability to achieve our investment objective depends on our ability to acquire suitable investments and monitor and administer those investments, which depends, in turn, on our investment adviser’s ability to identify, invest in and monitor companies that meet our investment criteria.

Accomplishing this result on a cost-effective basis is largely a function of the structuring of our investment process and the ability of our investment adviser to provide competent, attentive and efficient services to us. Our executive officers and the members of our investment adviser’s investment committee have substantial responsibilities in connection with their roles at Ares and with the other Ares funds, including Ares Strategic Income Fund (“ASIF”), a non-traded BDC managed by our investment adviser, as well as responsibilities under the investment advisory and management agreement. They may also be called upon to provide significant managerial assistance to certain of our portfolio companies. These demands on their time, which will increase as the number of investments grow, may distract them or slow the rate of investment. In order for us to grow, Ares will need to hire, train, supervise, manage and retain new employees. However, we cannot assure you that Ares will be able to do so effectively. Any failure to manage our future growth effectively could have a material adverse effect on our business, financial condition and results of operations.
                  
Risk Of Ability To Raise Capital [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our ability to grow depends on our ability to raise capital.

We will need to periodically access the capital markets to raise cash to fund new investments in excess of our repayments, and we may also need to access the capital markets to refinance existing debt obligations to the extent such maturing obligations are not repaid with availability under our revolving credit facilities or cash flows from operations. We have elected to be treated as a RIC and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. Among other things, in order to maintain our RIC status, we must distribute to our stockholders on a timely basis generally an amount equal to at least 90% of our investment company taxable income, and, as a result, such distributions will not be available to fund investment originations or repay maturing debt. We must continue to borrow from financial institutions and issue additional securities to fund our growth. Unfavorable economic or capital market conditions may increase our funding costs, limit our access to the capital markets or could result in a decision by lenders not to extend credit to us. An inability to successfully access the capital markets may limit our ability to refinance our existing debt obligations as they come due and/or to fully execute our business strategy and could limit our ability to grow or cause us to have to shrink the size of our business, which could decrease our earnings, if any. See “—The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.”

In addition, we are currently allowed to borrow amounts or issue debt securities or preferred stock, which we refer to collectively as “senior securities,” such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% immediately after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). Such requirement, in certain circumstances, may restrict our ability to borrow or issue debt securities or preferred stock. The amount of leverage that we employ will depend on our investment adviser’s and our board of directors’ assessments of market and other factors at the time of any proposed borrowing or issuance of senior securities. We cannot assure you that we will be able to maintain or increase
the amount available to us under our current Facilities (as defined below), obtain other lines of credit or issue senior securities at all or on terms acceptable to us. 		                 
Risk Of Regulations Affecting Ability To Raise Additional Capital [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Regulations governing our operation as a BDC affect our ability to, and the way in which we, raise additional capital.

We may issue senior securities or borrow money from banks or other financial institutions, up to the maximum amount permitted by the Investment Company Act. As a BDC, we are currently permitted to incur indebtedness or issue senior securities only in amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after each such incurrence or issuance (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). If the value of our assets declines, we may be unable to satisfy this test, which may prohibit us from paying dividends and could prevent us from maintaining our status as a RIC or may prohibit us from repurchasing shares of our common stock. In addition, our inability to satisfy this test could cause an event of default under our existing indebtedness. If we cannot satisfy this test, we may be required to sell a portion of our investments at a time when such sales may be disadvantageous and, depending on the nature of our leverage, repay a portion of our indebtedness. Accordingly, any failure to satisfy this test could have a material adverse effect on our business, financial condition or results of operations. As of December 31, 2022, our asset coverage calculated in accordance with the Investment Company Act was 177%. Also, to generate cash for funding new investments, we may in the future seek to issue additional debt or to securitize certain of our loans. The Investment Company Act may impose restrictions on the structure of any such securitization.

We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, or warrants, options or rights to acquire our common stock, at a price below the current net asset value per share of our common stock if our board of directors determines that such sale is in our best interests and the best interests of our stockholders, and our stockholders approve such sale. Any such sale would be dilutive to the net asset value per share of our common stock. In any such case, the price at which our securities are to be issued and sold may not be less than a price that, in the determination of our board of directors, closely approximates the market value of such securities (less any commission or discount). If our common stock trades at a discount to net asset value, this restriction could adversely affect our ability to raise capital.
Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023. 		                 
Risk Of Borrowing Money [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.

Borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in our securities. We currently borrow under the Facilities and have issued or assumed other senior securities, and in the future may borrow from, or issue additional senior securities to, banks, insurance companies, funds, institutional investors and other lenders and investors. Lenders and holders of such senior securities have fixed dollar claims on our consolidated assets that are superior to the claims of our common stockholders or any preferred stockholders. If the value of our consolidated assets increases, then leveraging would cause the net asset value per share of our common stock to increase more sharply than it would have had we not incurred leverage.

Conversely, if the value of our consolidated assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not incurred leverage. Similarly, any increase in our consolidated income in excess of consolidated interest payable on the borrowed funds would cause our net income to increase more than it would had we not incurred leverage, while any decrease in our consolidated income would cause net income to decline more sharply than it would have had we not incurred leverage. Such a decline could negatively affect our ability to make common stock dividend payments. There can be no assurance that a leveraging strategy will be successful.

As of December 31, 2022, we had approximately $3.7 billion of outstanding borrowings under the Facilities, approximately $403 million aggregate principal amount of unsecured convertible notes that mature on March 1, 2024 (the “2024 Convertible Notes”) and approximately $8.1 billion in aggregate principal amount outstanding of senior unsecured notes comprised of $750 million in aggregate principal amount of senior unsecured notes that mature on February 10, 2023 and bear interest at a rate of 3.500% (the “2023 Notes”), $900 million in aggregate principal amount of senior unsecured notes that mature on June 10, 2024 and bear interest at a rate of 4.200% (the “2024 Notes”), $600 million in aggregate principal amount of senior unsecured notes that mature on March 1, 2025 and bear interest at a rate of 4.250% (the “March 2025 Notes”), $1,250 million in aggregate principal amount of senior unsecured notes that mature on July 15, 2025 and bear interest at a rate of
3.250% (the “July 2025 Notes”), $1,150 million in aggregate principal amount of senior unsecured notes that mature on January 15, 2026 and bear interest at a rate of 3.875% (the “January 2026 Notes”), $1,000 million in aggregate principal amount of senior unsecured notes that mature on July 15, 2026 and bear interest at a rate of 2.150% (the “July 2026 Notes”), $500 million in aggregate principal amount of senior unsecured notes that mature on June 15, 2027 and bear interest at a rate of 2.875% (the “2027 Notes”), $1,250 million in aggregate principal amount of senior unsecured notes that mature on June 15, 2028 and bear interest at a rate of 2.875% (the “2028 Notes”) and $700 million in aggregate principal amount of senior unsecured notes that mature on November 15, 2031 and bear interest at a rate of 3.200% (the “2031 Notes” and together with the 2023 Notes, the 2024 Notes, the March 2025 Notes, the July 2025 Notes, the January 2026 Notes, the July 2026 Notes, the 2027 Notes, the 2028 Notes, the “Unsecured Notes”). In order for us to cover our annual interest payments on our outstanding indebtedness at December 31, 2022, we must achieve annual returns on our December 31, 2022 total assets of at least 2.3%. The weighted average stated interest rate charged on our principal amount of outstanding indebtedness as of December 31, 2022 was 4.2%. We intend to continue borrowing under the Facilities in the future and we may increase the size of the Facilities or issue additional debt securities or other evidences of indebtedness (although there can be no assurance that we will be successful in doing so). For more information on our indebtedness, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources.” Our ability to service our debt depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures. The amount of leverage that we employ at any particular time will depend on our investment adviser’s and our board of directors’ assessments of market and other factors at the time of any proposed borrowing. We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us).

The Facilities, the 2024 Convertible Notes and the Unsecured Notes impose financial and operating covenants that restrict our business activities, including limitations that could hinder our ability to finance additional loans and investments or to make the distributions required to maintain our status as a RIC. A failure to renew the Facilities or to add new or replacement debt facilities or to issue additional debt securities or other evidences of indebtedness could have a material adverse effect on our business, financial condition and results of operations.

The following table illustrates the effect on return to a holder of our common stock of the leverage created by our use of borrowing at the weighted average stated interest rate of 4.2% as of December 31, 2022, together with (a) our total value of net assets as of December 31, 2022; (b) approximately $12.2 billion in aggregate principal amount of indebtedness outstanding as of December 31, 2022 and (c) hypothetical annual returns on our portfolio of minus 15% to plus 15%.

Assumed Return on Portfolio (Net of Expenses)(1)-15.00 %-10.00 %-5.00 %— %5.00 %10.00 %15.00 %
Corresponding Return to Common Stockholders(2)-40.51 %-28.79 %-17.07 %-5.35 %6.37 %18.10 %29.82 %
_______________________________________________________________________________

(1)The assumed portfolio return is required by SEC regulations and is not a prediction of, and does not represent, our projected or actual performance. Actual returns may be greater or less than those appearing in the table. Pursuant to SEC regulations, this table is calculated as of December 31, 2022. As a result, it has not been updated to take into account any changes in assets or leverage since December 31, 2022.

(2)In order to compute the “Corresponding Return to Common Stockholders,” the “Assumed Return on Portfolio” is multiplied by the total value of our assets at December 31, 2022 to obtain an assumed return to us. From this amount, the interest expense (calculated by multiplying the weighted average stated interest rate of 4.2% by the approximately $12.2 billion of principal debt outstanding) is subtracted to determine the return available to stockholders. The return available to stockholders is then divided by the total value of our net assets as of December 31, 2022 to determine the “Corresponding Return to Common Stockholders.”
                  
Risk Of Covenants That Could Accelerate Repayment And Affect Liquidity And Financial Condition [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
In addition to regulatory requirements that restrict our ability to raise capital, the Facilities, the 2024 Convertible Notes and the Unsecured Notes contain various covenants that, if not complied with, could accelerate repayment under the Facilities, the 2024 Convertible Notes and the Unsecured Notes, thereby materially and adversely affecting our liquidity, financial condition and results of operations.
The agreements governing the Facilities, the 2024 Convertible Notes and the Unsecured Notes require us to comply with certain financial and operational covenants. These covenants may include, among other things:
•restrictions on the level of indebtedness that we are permitted to incur in relation to the value of our assets;

•restrictions on our ability to incur liens; and

•maintenance of a minimum level of stockholders’ equity.

As of the date of this Annual Report, we are in compliance in all material respects with the covenants of the Facilities, the 2024 Convertible Notes and the Unsecured Notes. However, our continued compliance with these covenants depends on many factors, some of which are beyond our control. For example, depending on the condition of the public debt and equity markets and pricing levels, unrealized depreciation in our portfolio may increase in the future. Any such increase could result in our inability to comply with our obligation to restrict the level of indebtedness that we are able to incur in relation to the value of our assets or to maintain a minimum level of stockholders’ equity.

Accordingly, although we believe we will continue to be in compliance, there are no assurances that we will continue to comply with the covenants in the Facilities, the 2024 Convertible Notes and the Unsecured Notes. Failure to comply with these covenants could result in a default under the Facilities, the 2024 Convertible Notes or the Unsecured Notes, that, if we were unable to obtain a waiver from the lenders or holders of such indebtedness, as applicable, such lenders or holders could accelerate repayment under such indebtedness and thereby have a material adverse impact on our business, financial condition and results of operations.
                  
Risk Of Operating In A Highly Competitive Market [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We operate in a highly competitive market for investment opportunities.

A number of entities compete with us to make the types of investments that we make in middle-market companies. We compete with other BDCs, public and private funds, commercial and investment banks, commercial financing companies, insurance companies, hedge funds, and, to the extent they provide an alternative form of financing, private equity funds. Some of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. Some competitors may have a lower cost of funds and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than we do. Furthermore, many of our competitors are not subject to the regulatory restrictions that the Investment Company Act imposes on us as a BDC and that the Code imposes on us as a RIC. In addition, new competitors frequently enter the financing markets in which we operate. We cannot assure you that the competitive pressures we face will not have a material adverse effect on our business, financial condition and results of operations. Also, as a result of this competition, we may not be able to pursue attractive investment opportunities from time to time.

We do not seek to compete primarily based on the interest rates we offer and we believe that some of our competitors may make loans with interest rates that are comparable to or lower than the rates we offer. Rather, we compete with our competitors based on our existing investment platform, seasoned investment professionals, experience and focus on middle-market companies, disciplined investment philosophy, extensive industry focus and flexible transaction structuring. For a more detailed discussion of these competitive advantages, see “Business—Competitive Advantages.”

We may lose investment opportunities if we do not match our competitors’ pricing, terms and structure. The loss of such investment opportunities may limit our ability to grow or cause us to have to shrink the size of our portfolio, which could decrease our earnings. If we match our competitors’ pricing, terms and structure, we may experience decreased net interest income and increased risk of credit loss. As a result of operating in such a competitive environment, we may make investments that are on less favorable terms than what we may have originally anticipated, which may impact our return on these investments.
                  
Risk Of Significant Potential Conflicts Of Interest [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
There are significant potential conflicts of interest that could impact our investment returns.

Conflicts may arise in allocating and structuring investments, time, services, expenses or resources among the investment activities of Ares funds (including ASIF), Ares, other Ares-affiliated entities and the employees of Ares. Certain of our executive officers and directors, and members of the investment committee of our investment adviser, serve or may serve as officers, directors or principals of other entities and affiliates of our investment adviser and investment funds managed by our investment adviser or its affiliates, including ASIF. These officers and directors will devote such portion of their time to our affairs as is required for the performance of their duties, but they are not required to devote all of their time to us. Accordingly, they may have obligations to investors in those entities, the fulfillment of which might not be in our or our stockholders’ best interests or may require them to devote time to services for other entities, which could interfere with the time available to provide services to us. Members of our investment adviser’s investment committee may have significant responsibilities for
other Ares funds, including ASIF. Similarly, although the professional staff of our investment adviser will devote as much time to the management of us as appropriate to enable our investment adviser to perform its duties in accordance with the investment advisory and management agreement, the investment professionals of our investment adviser may have conflicts in allocating their time and services among us, on the one hand, and investment vehicles managed by our investment adviser or one or more of its affiliates, on the other hand. These activities could be viewed as creating a conflict of interest insofar as the time and effort of the professional staff of our investment adviser and its officers and employees will not be devoted exclusively to our business but will instead be allocated between our business and the management of these other investment vehicles.

In addition, certain Ares funds may have investment objectives that compete or overlap with, and may from time to time invest in asset classes similar to those targeted by, Ares Capital. Consequently, we, on the one hand, and these other entities, on the other hand, may from time to time pursue the same or similar capital and investment opportunities. Ares and our investment adviser endeavor to allocate investment opportunities in a fair and equitable manner, and in any event consistent with any fiduciary duties owed to Ares Capital. Nevertheless, it is possible that we may not be given the opportunity to participate in certain investments made by investment funds managed by investment managers affiliated with Ares (including our investment adviser). In addition, there may be conflicts in the allocation of investments among us and the funds managed by investment managers affiliated with Ares (including our investment adviser) or one or more of our controlled affiliates or among the funds they manage, including investments made pursuant to the Co-Investment Exemptive Order. Further, such other Ares-managed funds may hold positions in portfolio companies in which Ares Capital has also invested. Such investments may raise potential conflicts of interest between Ares Capital and such other Ares-managed funds, particularly if Ares Capital and such other Ares-managed funds invest in different classes or types of securities or investments of the same underlying portfolio company. In that regard, actions may be taken by such other Ares-managed funds that are adverse to Ares Capital’s interests, including, but not limited to, during a restructuring, bankruptcy or other insolvency proceeding or similar matter occurring at the underlying portfolio company.

We have from time to time sold assets to IHAM and certain of the IHAM Vehicles and, as part of our investment strategy, we may offer to sell additional assets to vehicles managed by one or more of our affiliates (including IHAM) or we may purchase assets from vehicles managed by one or more of our affiliates (including IHAM). In addition, vehicles managed by one or more of our affiliates (including IHAM) may offer assets to or may purchase assets from one another. While assets may be sold or purchased at prices that are consistent with those that could be obtained from third parties in the marketplace, and although these types of transactions generally require approval of one or more independent parties, there may be an inherent conflict of interest in such transactions between us and funds managed by one of our affiliates (including our investment adviser).

We pay a base management fee, an income based fee and a capital gains incentive fee to our investment adviser, and reimburse our investment adviser for certain expenses it incurs. Ares, from time to time, incurs fees, costs, and expenses on behalf of more than one fund. To the extent such fees, costs, and expenses are incurred for the account or benefit of more than one fund, each such fund will typically bear an allocable portion of any such fees, costs, and expenses in proportion to the size of its investment in the activity or entity to which such expense relates (subject to the terms of each fund’s governing documents) or in such other manner as Ares considers fair and equitable under the circumstances such as the relative fund size or capital available to be invested by such funds. Where a fund’s governing documents do not permit the payment of a particular expense, Ares will generally pay such fund’s allocable portion of such expense. In addition, investors in our common stock will invest on a gross basis and receive distributions on a net basis after expenses, resulting in, among other things, a lower rate of return than one might achieve if distributions were made on a gross basis.

Our investment adviser’s base management fee is based on a percentage of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) and, consequently, our investment adviser may have conflicts of interest in connection with decisions that could affect our total assets, such as decisions as to whether to incur indebtedness or to make future investments. We are currently allowed to borrow amounts such that our asset coverage, as calculated pursuant to the Investment Company Act, equals at least 150% after such borrowing (i.e., we are able to borrow up to two dollars for every dollar we have in assets less all liabilities and indebtedness not represented by senior securities issued by us). Accordingly, our investment adviser may have conflicts of interest in connection with decisions to use increased leverage permitted under our asset coverage requirement applicable to senior securities, as the incurrence of such additional indebtedness would result in an increase in the base management fees payable to our investment adviser and may also result in an increase in the income based fees and capital gains incentive fees payable to our investment adviser.

The income based fees payable by us to our investment adviser that relate to our pre-incentive fee net investment income is computed and paid on income that may include interest that is accrued but not yet received in cash. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in
the calculation of such fee will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of the income based fees it received that were based on accrued interest that we never actually receive.

Our investment advisory and management agreement renews for successive annual periods if approved by our board of directors or by the affirmative vote of the holders of a majority of our outstanding voting securities, including, in either case, approval by a majority of our directors who are not “interested persons” of us as defined in Section 2(a)(19) of the Investment Company Act. However, both we and our investment adviser have the right to terminate the agreement without penalty upon 60 days’ written notice to the other party. Moreover, conflicts of interest may arise if our investment adviser seeks to change the terms of our investment advisory and management agreement, including, for example, the terms for compensation to our investment adviser. While any material change to the investment advisory and management agreement must be submitted to stockholders for approval under the Investment Company Act, we may from time to time decide it is appropriate to seek stockholder approval to change the terms of the agreement.

We are party to an administration agreement with our administrator, Ares Operations, a subsidiary of Ares Management, pursuant to which our administrator furnishes us with administrative services and we pay our administrator at cost our allocable portion of overhead and other expenses (including travel expenses) incurred by our administrator in performing its obligations under our administration agreement, including our allocable portion of the compensation, rent, and other expenses of certain of our officers (including our chief compliance officer, chief financial officer, chief accounting officer, general counsel, secretary, treasurer and assistant treasurer) and their respective staffs, but not investment professionals.

Our portfolio company, IHAM, is party to an administration agreement, referred to herein as the “IHAM administration agreement,” with Ares Operations. Pursuant to the IHAM administration agreement, our administrator provides IHAM with administrative services and IHAM reimburses our administrator for all of the actual costs associated with such services, including its allocable portion of our administrator’s overhead and the cost of our administrator’s officers and respective staff in performing its obligations under the IHAM administration agreement. Prior to entering into the IHAM administration agreement, IHAM was party to a services agreement with our investment adviser, pursuant to which our investment adviser provided similar services.

As a result of the arrangements described above, there may be times when the management team of Ares Management (including those members of management focused primarily on managing Ares Capital) has interests that differ from those of our stockholders, giving rise to a conflict. Additionally, the members of management focused on managing us will also manage other Ares funds, including ASIF, and, consequently, will need to devote significant attention and time to managing other Ares funds, in addition to us.

Our stockholders may have conflicting investment, tax and other objectives with respect to their investments in us. The conflicting interests of individual stockholders may relate to or arise from, among other things, the nature of our investments, the structure or the acquisition of our investments, and the timing of dispositions of our investments. As a consequence, conflicts of interest may arise in connection with decisions made by our investment adviser, including with respect to the nature or structuring of our investments, that may be more beneficial for one stockholder than for another stockholder, especially with respect to stockholders’ individual tax situations. In selecting and structuring investments appropriate for us, our investment adviser will consider the investment and tax objectives of the Company and our stockholders, as a whole, not the investment, tax or other objectives of any stockholder individually.
                  
Risk Of Additional Corporate-Level Income Taxes If Failure To Maintain RIC Status [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may be subject to additional corporate-level income taxes if we fail to maintain our status as a RIC.

We have elected to be treated as a RIC under the Code and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. As a RIC, we generally will not pay U.S. federal corporate-level income taxes on our income and net capital gains that we distribute to our stockholders as dividends on a timely basis. We will be subject to U.S. federal corporate-level income tax on any undistributed income and/or gains. To maintain our status as a RIC, we must meet certain source of income, asset diversification and annual distribution requirements. We may also be subject to certain U.S. federal excise taxes, as well as state, local and foreign taxes.

To maintain our RIC status, we must timely distribute an amount equal to at least 90% of our investment company taxable income (as defined by the Code, which generally includes net ordinary income and net short term capital gains) to our stockholders (the “Annual Distribution Requirement”). We have the ability to pay a large portion of our dividends in shares of our stock, and as long as a portion of such dividend is paid in cash and other requirements are met, such stock dividends will be taxable as a dividend for U.S. federal income tax purposes. This may result in our U.S. stockholders having to pay tax on such dividends, even if no cash is received, and may result in our non-U.S. stockholders being subject to withholding tax in respect of amounts distributed in our stock. Because we use debt financing, we are subject to certain asset coverage ratio requirements
under the Investment Company Act and financial covenants under our indebtedness that could, under certain circumstances, restrict us from making distributions necessary to qualify as a RIC. If we are unable to obtain cash from other sources, we may fail to maintain our status as a RIC and, thus, may be subject to corporate-level income tax on all of our income and/or gains.

To maintain our status as a RIC, in addition to the Annual Distribution Requirement, we must also meet certain annual source of income requirements at the end of each taxable year and asset diversification requirements at the end of each calendar quarter. Failure to meet these requirements may result in our having to (a) dispose of certain investments quickly or (b) raise additional capital to prevent the loss of RIC status. Because most of our investments are in private companies and are generally illiquid, any such dispositions may be at disadvantageous prices and may result in losses. Also, the rules applicable to our qualification as a RIC are complex with many areas of uncertainty. Accordingly, no assurance can be given that we have qualified or will continue to qualify as a RIC. If we fail to maintain our status as a RIC for any reason and become subject to regular “C” corporation income tax, the resulting corporate-level income taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions. Such a failure would have a material adverse effect on us and on any investment in us. Certain provisions of the Code provide some relief from RIC disqualification due to failures of the source of income and asset diversification requirements, although there may be additional taxes due in such cases. We cannot assure you that we would qualify for any such relief should we fail the source of income or asset diversification requirements.
                  
Risk Of Difficulty Paying Required Distributions [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may have difficulty paying our required distributions under applicable tax rules if we recognize income before or without receiving cash representing such income.

For U.S. federal income tax purposes, we may be required to include in income certain amounts that we have not yet received in cash, such as original issue discount, which may arise, for example, if we receive warrants in connection with the making of a loan, or PIK interest representing contractual interest added to the loan principal balance and due at the end of the loan term. Such original issue discount or PIK interest is included in income before we receive any corresponding cash payments. We also may be required to include in income certain other amounts that we will not receive in cash, including, for example, amounts attributable to hedging and foreign currency transactions.
Since, in certain cases, we may recognize income before or without receiving cash in respect of such income, we may have difficulty meeting the U.S. federal income tax requirement to distribute generally an amount equal to at least 90% of our investment company taxable income to maintain our status as a RIC. Accordingly, we may have to sell some of our investments at times we would not consider advantageous, raise additional debt or equity capital or reduce new investment originations to meet these distribution requirements. If we are not able to obtain cash from other sources, we may fail to qualify as a RIC and thus be subject to additional corporate-level income taxes. Such a failure could have a material adverse effect on us and on any investment in us. 		                 
Risk Of Fair Values Of Investments Not Being Readily Determinable [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Most of our portfolio investments are not publicly traded and, as a result, the fair value of these investments may not be readily determinable.

A large percentage of our portfolio investments are not publicly traded. The fair value of investments that are not publicly traded may not be readily determinable. We value these investments quarterly at fair value as determined in good faith by our investment adviser, as the valuation designee, subject to the oversight of our board of directors, based on, among other things, the input of independent third-party valuation firms that have been engaged to support the valuation of such portfolio investments at least once during a trailing 12-month period (with certain de minimis exceptions). The valuation process is conducted at the end of each fiscal quarter by our investment adviser, and a portion of our investment portfolio at fair value is subject to review by an independent third-party valuation firm each quarter. However, we may use these independent valuation firms to review the value of our investments more frequently, including in connection with the occurrence of significant events or changes in value affecting a particular investment. In addition, our independent registered public accounting firm obtains an understanding of, and performs select procedures relating to, our valuation process within the context of performing our integrated audit.

The types of factors that may be considered in valuing our investments include the enterprise value of the portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flows, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to similar publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we consider the pricing indicated by the external event to corroborate our valuation. Because
such valuations, and particularly valuations of private investments and private companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these investments existed and may differ materially from the values that we may ultimately realize. Our net asset value per share could be adversely affected if our determinations regarding the fair value of these investments are higher than the values that we realize upon disposition of such investments. 		                 
Risk Related To Lack Of Liquidity In Investments [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The lack of liquidity in our investments may adversely affect our business.

As we generally make investments in private companies, substantially all of these investments are subject to legal and other restrictions on resale or are otherwise less liquid than publicly traded securities. The illiquidity of our investments may make it difficult for us to sell such investments if the need arises. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we could realize significantly less than the value at which we have recorded our investments or could be unable to dispose of our investments in a timely manner. In addition, we may face other restrictions on our ability to liquidate an investment in a portfolio company to the extent that we or an affiliated manager of Ares has material non-public information regarding such portfolio company.
                  
Risk Of Significant Investments Failing To Perform As Expected [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our financial condition and results of operations could be negatively affected if a significant investment fails to perform as expected.

Our investment portfolio includes investments that may be significant individually or in the aggregate. If a significant investment in one or more companies fails to perform as expected, such a failure could have a material adverse effect on our business, financial condition and operating results, and the magnitude of such effect could be more significant than if we had further diversified our portfolio.

Our investment portfolio includes our investment in IHAM, a wholly owned portfolio company, which as of December 31, 2022, represented 10.1% of our total portfolio at fair value. In addition, for the year ended December 31, 2022, approximately 10.9% of our total investment income was earned from our investment in IHAM. For more information, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Portfolio and Investment Activity—Ivy Hill Asset Management, L.P.” and Note 4 to our consolidated financial statements for the year ended December 31, 2022.
                  
Risk Related To Corporate Social Responsibility [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We are subject to risks related to corporate social responsibility.
 
Our business (including that of our portfolio companies) faces increasing public scrutiny related to ESG activities, which are increasingly considered to contribute to reducing a company’s operational risk, market risk and reputational risk, which may in turn impact the long-term sustainability of a company’s performance. A variety of organizations measure the performance of companies on ESG topics, and the results of these assessments are widely publicized. In addition, investment in funds that specialize in companies that perform well in such assessments are increasingly popular, and major institutional investors have publicly emphasized the importance of such ESG measures to their investment decisions.

We risk damage to our brand and reputation if we fail to act responsibly in a number of areas, including, but not limited to diversity, equity and inclusion, human rights, climate change and environmental stewardship, corporate governance and considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the value of our brand, our relationship with existing and future portfolio companies, the cost of our operations and relationships with investors, all of which could adversely affect our business and results of operations.

However, regional and investor specific sentiment may differ in what constitutes a material positive or negative ESG corporate practice. There is no guarantee that Ares’ corporate social responsibility practices will uniformly fit every investor’s definition of best practices for all environmental, social and governance considerations across geographies and investor types.

Additionally, new regulatory initiatives related to ESG that are applicable to us and our portfolio companies could adversely affect our business. For example, in May 2018, the European Commission adopted an “action plan on financing sustainable growth.” The action plan is, among other things, designed to define and reorient investment toward sustainability. The action plan contemplates: establishing EU labels for green financial products; increasing disclosure requirements in the financial services sector around ESG and strengthening the transparency of companies on their ESG policies and introducing a ‘green supporting factor’ in the EU prudential rules for banks and insurance companies to incorporate climate risks into banks’ and insurance companies’ risk management policies. There is a risk that a significant reorientation in the market following the implementation of these and further measures could be adverse to our portfolio companies if they are perceived to be less valuable as a consequence of, e.g., their carbon footprint or “greenwashing” (i.e., the holding out of a product as having green
or sustainable characteristics where this is not, in fact, the case). We and our portfolio companies are subject to the risk that similar measures might be introduced in other jurisdictions in the future.

There is also a growing regulatory interest across jurisdictions in improving transparency regarding the definition, measurement and disclosure of ESG factors in order to allow investors to validate and better understand sustainability claims. In addition, in 2021 the SEC established an enforcement task force to look into ESG practices and disclosures by public companies and investment managers and has started to bring enforcement actions based on ESG disclosures not matching actual investment processes.

In addition, the SEC has announced that it is working on proposals for mandatory disclosure of certain ESG-related matters, including with respect to corporate and fund carbon emissions, board diversity and human capital management. At this time, there is uncertainty regarding the scope of such proposals or when they would become effective (if at all). Compliance with any new laws or regulations increases our regulatory burden and could make compliance more difficult and expensive, affect the manner in which we or our portfolio companies conduct our businesses and adversely affect our profitability.
                  
Risk Of Being Target Of Litigation Or Regulatory Investigations [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We and our investment adviser could be the target of litigation or regulatory investigations.

We as well as our investment adviser and its affiliates participate in a highly regulated industry and are each subject to regulatory examinations in the ordinary course of business. There can be no assurance that we and our investment adviser and/or any of its affiliates will avoid regulatory investigation and possible enforcement actions stemming therefrom. Our investment adviser is a registered investment adviser and, as such, is subject to the provisions of the Advisers Act. We and our investment adviser are each, from time to time, subject to formal and informal examinations, investigations, inquiries, audits and reviews from numerous regulatory authorities both in response to issues and questions raised in such examinations or investigations and in connection with the changing priorities of the applicable regulatory authorities across the market in general.

Our investment adviser, its affiliates and/or any of their respective principals and employees could also be named as defendants in, or otherwise become involved in, litigation. Litigation and regulatory actions can be time-consuming and expensive and can lead to unexpected losses, which expenses and losses are often subject to indemnification by us. Legal proceedings could continue without resolution for long periods of time and their outcomes, which could materially and adversely affect the value of us or the ability of our investment adviser to manage us, are often impossible to anticipate. our investment adviser would likely be required to expend significant resources responding to any litigation or regulatory action related to it, and these actions could be a distraction to the activities of our investment adviser.

Our investment activities are subject to the normal risks of becoming involved in litigation by third parties. This risk would be somewhat greater if we were to exercise control or significant influence over a portfolio company’s direction. The expense of defending against claims by third parties and paying any amounts pursuant to settlements or judgments would, absent willful misfeasance, bad faith, gross negligence, or reckless disregard of the duties involved by our investment adviser, our administrator, or any of our officers, be borne by us and would reduce our net assets. Our investment adviser and others are indemnified by us in connection with such litigation, subject to certain conditions.
                  
Risk Of Changes In Laws Or Regulations [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Changes in laws or regulations governing our operations or the operations of our portfolio companies, changes in the interpretation thereof or enacted laws or regulations could require changes to certain business practices of us or our portfolio companies, negatively impact the operations, cash flows or financial condition of us or our portfolio companies, impose additional costs on us or our portfolio companies or otherwise adversely affect our business or the business of our portfolio companies.

We and our portfolio companies are subject to regulation by laws and regulations at the local, state, federal and, in some cases, foreign levels. These laws and regulations, as well as their interpretation, may be changed from time to time, and new laws and regulations may be enacted. Accordingly, any change in these laws or regulations, changes in their interpretation, or enacted laws or regulations could require changes to certain business practices of us or our portfolio companies, negatively impact the operations, cash flows or financial condition of us or our portfolio companies, impose additional costs on us or our portfolio companies or otherwise adversely affect our business or the business of our portfolio companies.

Additionally, legislative or other actions relating to taxes could have a negative effect on us. The rules dealing with U.S. federal income taxation are constantly under review by legislators and by the Internal Revenue Service (“IRS”) and the U.S. Treasury Department. Previously, the Tax Cuts and Jobs Act of 2017 significantly changed U.S. tax law and tax rates. We cannot predict how future tax proposals and changes in the Tax Cuts and Jobs Act, or regulations or other guidance issued under it, might affect us, our business, our stockholders, or our portfolio companies in the long-term. New legislation and any
U.S. Treasury regulations, administrative interpretations or court decisions interpreting such legislation could significantly and negatively affect our ability to qualify for tax treatment as a RIC or the U.S. federal income tax consequences to us and our stockholders of such qualification, or could have other adverse consequences. Stockholders are urged to consult with their tax advisor regarding tax legislative, regulatory, or administrative developments and proposals and their potential effect on an investment in our securities. 		                 
Risk Related To Discontinuation Of LIBOR [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The discontinuation of LIBOR may adversely affect the value of the LIBOR‑indexed, floating‑rate debt securities in our portfolio or the cost of our borrowings.

National and international regulators and law enforcement agencies have conducted investigations into a number of rates or indices that are deemed to be “reference rates.” Actions by such regulators and law enforcement agencies may result in changes to the manner in which certain reference rates are determined, their discontinuance, or the establishment of alternative reference rates. In particular, on July 27, 2017, the Chief Executive of the U.K. Financial Conduct Authority (the “FCA”), which regulates LIBOR, announced that the FCA will no longer persuade or compel banks to submit rates for the calculation of LIBOR after 2021. As of the date of this Annual Report, USD LIBOR is available in five settings (overnight, one-month, three-month, six-month and 12-month). The ICE Benchmark Administration (“IBA”) has stated that it will cease to publish all remaining USD LIBOR settings immediately following their publication on June 30, 2023, absent subsequent action by the relevant authorities. As of January 1, 2022, all non-USD LIBOR reference rates in all settings ceased to be published. There can be no assurance that non USD synthetic LIBOR or USD LIBOR will remain available in the future.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee (the “ARRC”), a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate (“SOFR”) as its preferred alternative rate for LIBOR. On December 6, 2021, the ARRC released a statement selecting and recommending forms of SOFR, along with associated spread adjustments and conforming changes, to replace references to 1-week and 2-month USD LIBOR. We expect that a substantial portion of our future floating rate investments will be linked to SOFR. At this time, it is not possible to predict the effect of the transition to SOFR. Although there have been an increasing number of issuances utilizing SOFR or the Sterling Over Night Index Average (“SONIA”) (the GBP-LIBOR nominated replacement alternative reference rate that is based on transactions), it is unknown whether SOFR or any other alternative reference rates will attain market acceptance as replacements for LIBOR.

Given the inherent differences between LIBOR and SOFR, or any other alternative reference rates that may be established, the transition from LIBOR may disrupt the overall financial markets and adversely affect the market for LIBOR‑based securities, including our portfolio of LIBOR‑indexed, floating‑rate debt securities, or the cost of our borrowings. In addition, changes or reforms to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on the market for LIBOR‑based securities, including the value and/or transferability of the LIBOR‑indexed, floating‑rate debt securities in our portfolio, or the cost of our borrowings. Additionally, if as currently expected LIBOR ceases to exist, we may need to renegotiate the credit agreements extending beyond June 30, 2023, with our credit facility lenders and our portfolio companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with SOFR or other alternative reference rates, which could require us to incur significant time and expense and may subject us to disputes or litigation over the appropriateness or comparability to the relevant replacement reference index. The transition from LIBOR to SOFR or other alternative reference rates may also introduce operational risks in our accounting, financial reporting, loan servicing, liability management and other aspects of our business. We are in the process of transitioning our investments and our borrowings from LIBOR to SOFR and we do not expect that the transition will have a material impact on our business, financial condition or results of operations.
                  
Risk Of Investment Advisor Activity [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our investment adviser’s liability is limited under the investment advisory and management agreement, and we are required to indemnify our investment adviser against certain liabilities, which may lead our investment adviser to act in a riskier manner on our behalf than it would when acting for its own account.

Our investment adviser has not assumed any responsibility to us other than to render the services described in the investment advisory and management agreement, and it will not be responsible for any action of our board of directors in declining to follow our investment adviser’s advice or recommendations. Pursuant to the investment advisory and management agreement, our investment adviser and its members and their respective officers, managers, partners, agents, employees, controlling persons and members and any other persons affiliated with it will not be liable to us for their acts under the investment advisory and management agreement, absent willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties. We have agreed to indemnify, defend and protect our investment adviser and its members and their respective officers, managers, partners, agents, employees, controlling persons and members and any other persons or entities affiliated with it with respect to all damages, liabilities, costs and expenses arising out of or otherwise based upon the
performance of any of our investment adviser’s duties or obligations under the investment advisory and management agreement or otherwise as an investment adviser for us, and not arising out of willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties under the investment advisory and management agreement. These protections may lead our investment adviser to act in a riskier manner when acting on our behalf than it would when acting for its own account. See “Risk Factors—Risks Relating to Our Investments—Our investment adviser's fee structure may induce it to make certain investments on our behalf, including speculative investments.” 		                 
Risk Of Obligation To Pay Investment Advisor If Losses Incurred [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may be obligated to pay our investment adviser certain fees even if we incur a loss.

Our investment adviser is entitled to income based fees for each fiscal quarter in an amount equal to a percentage of the excess of our pre-incentive fee net investment income for that quarter (before deducting any income based fee and capital gains incentive fees and certain other items) above a threshold return for that quarter. Our pre-incentive fee net investment income for income based fee purposes excludes realized and unrealized capital losses or depreciation and income taxes related to realized gains that we may incur in the fiscal quarter, even if such capital losses or depreciation and income taxes related to realized gains result in a net loss on our statement of operations for that quarter. Thus, we may be required to pay our investment adviser income based fees for a fiscal quarter even if there is a decline in the value of our portfolio or the net asset value of our common stock or we incur a net loss for that quarter.

Under the investment advisory and management agreement, we will defer cash payment of any income based fee and the capital gains incentive fee otherwise earned by our investment adviser if, during the most recent four full calendar quarter periods ending on or prior to the date such payment is to be made, the sum of (a) our aggregate distributions to our stockholders and (b) our change in net assets (defined as total assets less indebtedness and before taking into account any income based fees or capital gains incentive fees accrued during the period) is less than 7.0% of our net assets (defined as total assets less indebtedness) at the beginning of such period. These calculations will be adjusted for any share issuances or repurchases. Any such deferred fees will be carried over for payment in subsequent calculation periods to the extent such payment can then be made under the investment advisory and management agreement.

If a portfolio company defaults on a loan that is structured to provide interest, it is possible that accrued and unpaid interest previously used in the calculation of income based fees will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of income based fees it received that was based on accrued income that we never receive.
                  
Risk Of Decline In Market Prices In Corporate Debt Markets [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Declines in market prices and liquidity in the corporate debt markets can result in significant net unrealized depreciation of our portfolio, which in turn would reduce our net asset value.

As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at fair value as determined in good faith by our investment adviser, as the valuation designee, subject to the oversight of our board of directors. Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of our investments may differ significantly from the values that would have been used had a readily available market value existed for such investments, and the differences could be material. We may take into account the following types of factors, if relevant, in determining the fair value of our investments: the enterprise value of a portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to similar publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we use the pricing indicated by the external event to corroborate our valuation. While most of our investments are not publicly traded, applicable accounting standards require us to assume as part of our valuation process that our investments are sold in a principal market to market participants (even if we plan on holding an investment through its maturity). As a result, volatility in the capital markets can also adversely affect our investment valuations. Decreases in the market values or fair values of our investments are recorded as unrealized depreciation. The effect of all of these factors on our portfolio can reduce our net asset value (and, as a result our asset coverage calculation) by increasing net unrealized depreciation in our portfolio. Depending on market conditions, we could incur substantial realized and/or unrealized losses, which could have a material adverse effect on our business, financial condition or results of operations.
                  
Risk Of Economic Downturn [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Economic recessions or downturns could impair our portfolio companies and harm our operating results.

The current macroeconomic environment is characterized by record-high inflation, supply chain challenges, labor shortages, high interest rates, foreign currency exchange volatility, volatility in global capital markets and growing recession risk. The risks associated with our and our portfolio companies’ businesses are more severe during periods of economic slowdown or recession.

Many of our portfolio companies may be susceptible to economic downturns or recessions and may be unable to repay our loans during these periods. Therefore, during these periods our non-performing assets may increase and the value of our portfolio may decrease if we are required to write down the values of our investments. Adverse economic conditions may also decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing investments and harm our operating results. We experienced to some extent such effects as a result of the economic downturn that occurred throughout portions of the past three fiscal years and from 2008 through 2009 and may experience such effects again in any future downturn or recession.

A portfolio company’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to defaults and, potentially, acceleration of the time when the loans are due and foreclosure on its assets representing collateral for its obligations, which could trigger cross defaults under other agreements and jeopardize our portfolio company’s ability to meet its obligations under the debt investments that we hold and the value of any equity securities we own. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting portfolio company.
                  
Risk Of Investments In Privately Held Middle-Market Companies [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Investments in privately held middle-market companies involve significant risks.

We primarily invest in privately held U.S. middle-market companies. Investments in privately held middle-market companies involve a number of significant risks, including the following:

•these companies may have limited financial resources and may be unable to meet their obligations, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing our investment;

•they typically have shorter operating histories, narrower product lines and smaller market shares than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns;

•they typically depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation or termination of one or more of these persons could have a material adverse effect on such portfolio company and, in turn, on us;

•there is generally little public information about these companies. These companies and their financial information are generally not subject to the Exchange Act (as defined below) and other regulations that govern public companies, and we may be unable to uncover all material information about these companies, which may prevent us from making a fully informed investment decision and cause us to lose money on our investments;

•they generally have less predictable operating results and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position;

•we, our executive officers, directors and our investment adviser may, in the ordinary course of business, be named as defendants in litigation arising from our investments in our portfolio companies and may, as a result, incur significant costs and expenses in connection with such litigation;

•changes in laws and regulations (including the tax laws), as well as their interpretations, may adversely affect their business, financial structure or prospects; and

•they may have difficulty accessing the capital markets to meet future capital needs.
                  
Risk Of Debt Investments [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our debt investments may be risky and we could lose all or part of our investment.

The debt that we invest in is typically not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than “Baa3” by Moody’s Investors Service, lower than “BBB-” by Fitch Ratings or lower than “BBB-” by Standard & Poor’s Ratings Services), which under the guidelines established by these entities is an indication of having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. Bonds that are rated below investment grade are sometimes referred to as “high yield bonds” or “junk bonds.” Therefore, our investments may result in an above average amount of risk and volatility or loss of principal. While the debt we invest in is often secured, such security does not guarantee that we will receive principal and interest payments according to the terms of the loan, or that the value of any collateral will be sufficient to allow us to recover all or a portion of the outstanding amount of the loan should we be forced to enforce our remedies.

Some of the loans in which we may invest may be “covenant-lite” loans, which means the loans contain fewer covenants than other loans (in some cases, none) and may not include terms which allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. An investment by us in a covenant-lite loan may potentially hinder the ability to reprice credit risk associated with the issuer and reduce the ability to restructure a problematic loan and mitigate potential loss. We may also experience delays in enforcing our rights under covenant-lite loans. As a result of these risks, our exposure to losses may be increased, which could result in an adverse impact on our net income and net asset value.

We also may invest in assets other than first and second lien and subordinated debt investments, including high-yield securities, U.S. government securities, credit derivatives and other structured securities and certain direct equity investments. These investments entail additional risks that could adversely affect our investment returns.
                  
Risk Of Investments In Illiquid Equity Securities [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Investments in equity securities, many of which are illiquid with no readily available market, involve a substantial degree of risk.

We may purchase common and other equity securities. Although common stock has historically generated higher average total returns than fixed income securities over the long-term, common stock also has experienced significantly more volatility in those returns. The equity securities we acquire may fail to appreciate and may decline in value or become worthless and our ability to recover our investment will depend on the underlying portfolio company’s success. Investments in equity securities involve a number of significant risks, including:

•any equity investment we make in a portfolio company could be subject to further dilution as a result of the issuance of additional equity interests and to serious risks as a junior security that will be subordinate to all indebtedness (including trade creditors) or senior securities in the event that the issuer is unable to meet its obligations or becomes subject to a bankruptcy process;

•to the extent that the portfolio company requires additional capital and is unable to obtain it, we may not recover our investment; and

•in some cases, equity securities in which we invest will not pay current dividends, and our ability to realize a return on our investment, as well as to recover our investment, will be dependent on the success of the portfolio company. Even if the portfolio company is successful, our ability to realize the value of our investment may be dependent on the occurrence of a liquidity event, such as a public offering or the sale of the portfolio company. It is likely to take a significant amount of time before a liquidity event occurs or we can otherwise sell our investment. In addition, the equity securities we receive or invest in may be subject to restrictions on resale during periods in which it could be advantageous to sell them.

There are special risks associated with investing in preferred securities, including:

•preferred securities may include provisions that permit the issuer, at its discretion, to defer distributions for a stated period without any adverse consequences to the issuer. If we own a preferred security that is deferring its distributions, we may be required to report income for tax purposes before we receive such distributions;

•preferred securities are subordinated to debt in terms of priority to income and liquidation payments, and therefore will be subject to greater credit risk than debt;
•preferred securities may be substantially less liquid than many other securities, such as common stock or U.S. government securities; and

•generally, preferred security holders have no voting rights with respect to the issuing company, subject to limited exceptions.

Additionally, when we invest in first lien senior secured loans (including “unitranche” loans, which are loans that combine both senior and subordinated debt, generally in a first lien position), second lien senior secured loans or subordinated debt, we may acquire warrants or other equity securities as well. Our goal is ultimately to dispose of such equity interests and realize gains upon our disposition of such interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience.

We may invest, to the extent permitted by law, in the equity securities of investment funds that are operating pursuant to certain exceptions to the Investment Company Act and in advisers to similar investment funds and, to the extent we so invest, will bear our ratable share of any such company’s expenses, including management and performance fees. We will also remain obligated to pay the base management fee, income based fee and capital gains incentive fee to our investment adviser with respect to the assets invested in the securities and instruments of such companies. With respect to each of these investments, each of our common stockholders will bear his or her share of the base management fee, income based fee and capital gains incentive fee due to our investment adviser as well as indirectly bearing the management and performance fees and other expenses of any such investment funds or advisers.
                  
Risk Of Debt Investments Being Subordinated To Other Creditors Claims [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
There may be circumstances in which our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

If one of our portfolio companies were to go bankrupt, even though we may have structured our interest as senior debt, depending on the facts and circumstances, a bankruptcy court might recharacterize our debt holding as an equity investment and subordinate all or a portion of our claim to that of other creditors. In addition, lenders can be subject to lender liability claims for actions taken by them where they become too involved in the borrower’s business or exercise control over the borrower. For example, we could become subject to a lender’s liability claim, if, among other things, we actually render significant managerial assistance.
                  
Risk Of Portfolio Companies Incurring Debt Or Equity [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our portfolio companies may incur debt or issue equity securities that rank equally with, or senior to, our investments in such companies.

Our portfolio companies may have, or may be permitted to incur, other debt, or issue other equity securities, that rank equally with, or senior to, our investments. By their terms, such instruments may provide that the holders are entitled to receive payment of dividends, interest or principal on or before the dates on which we are entitled to receive payments in respect of our investments. These debt instruments would usually prohibit the portfolio companies from paying interest on or repaying our investments in the event and during the continuance of a default under such debt. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of securities ranking senior to our investment in that portfolio company typically are entitled to receive payment in full before we receive any distribution in respect of our investment. After repaying such holders, the portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of securities ranking equally with our investments, we would have to share on an equal basis any distributions with other security holders in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

The rights we may have with respect to the collateral securing any junior priority loans we make to our portfolio companies may also be limited pursuant to the terms of one or more intercreditor agreements (including agreements governing “first out” and “last out” structures) that we enter into with the holders of senior debt. Under such an intercreditor agreement, at any time that senior obligations are outstanding, we may forfeit certain rights with respect to the collateral to the holders of the senior obligations. These rights may include the right to commence enforcement proceedings against the collateral, the right to control the conduct of such enforcement proceedings, the right to approve amendments to collateral documents, the right to release liens on the collateral and the right to waive past defaults under collateral documents. We may not have the ability to control or direct such actions, even if as a result our rights as junior lenders are adversely affected.
                  
Risk Of Inability To Exert Influence On Portfolio Companies [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                 When we are a debt or minority equity investor in a portfolio company, we are often not in a position to exert influence on the entity, and other equity holders and management of the company may make decisions that could decrease the value of our investment in such portfolio company.When we make debt or minority equity investments, we are subject to the risk that a portfolio company may make business decisions with which we disagree and the other equity holders and management of such company may take risks or otherwise act in ways that do not serve our interests. As a result, a portfolio company may make decisions that could decrease the value of our investment.                  
Risk Of Highly Leveraged Portfolio Companies [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our portfolio companies may be highly leveraged.

Some of our portfolio companies may be highly leveraged, which may have adverse consequences to these companies and to us as an investor. These companies may be subject to restrictive financial and operating covenants and the leverage may impair these companies’ ability to finance their future operations and capital needs. As a result, these companies’ flexibility to respond to changing business and economic conditions and to take advantage of business opportunities may be limited. Further, a leveraged company’s income and net assets will tend to increase or decrease at a greater rate than if borrowed money were not used.
                  
Risk Of Fee Structure Inducing Speculative Investments [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our investment adviser’s fee structure may induce it to make certain investments on our behalf, including speculative investments.

The fees payable by us to our investment adviser may create an incentive for our investment adviser to make investments on our behalf that are risky or more speculative than would be the case in the absence of such compensation arrangement. The way in which income based fees payable to our investment adviser are determined, which are calculated as a percentage of the return on invested capital, may encourage our investment adviser to use leverage to increase the return on our investments. Under certain circumstances, the use of leverage may increase the likelihood of default, which would disfavor the holders of our common stock and the holders of securities convertible into our common stock. In addition, our investment adviser will receive the capital gains incentive fee based, in part, upon net capital gains realized on our investments. Unlike income based fees, there is no hurdle rate applicable to the capital gains incentive fee. As a result, our investment adviser may have a tendency to invest more in investments that are likely to result in capital gains as compared to income producing securities. Such a practice could result in our investing in more speculative securities than would otherwise be the case, which could result in higher investment losses, particularly during economic downturns.

The income based fees are computed and paid on income that has been accrued but not yet received in cash, including as a result of investments with a deferred interest feature such as debt instruments with PIK interest, preferred stock with PIK dividends and zero coupon securities. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in the calculation of the income based fee will become uncollectible. Our investment adviser is not under any obligation to reimburse us for any part of the fees it received that were based on such accrued interest that we never actually received.
Because of the structure of the income based fees, it is possible that we may have to pay income based fees in a quarter during which we incur a loss. For example, if we receive pre-incentive fee net investment income in excess of the hurdle rate for a quarter, we will pay the applicable income based fees even if we have incurred a loss in that quarter due to realized and/or unrealized capital losses. In addition, if market interest rates rise, our investment adviser may be able to invest our funds in debt instruments that provide for a higher return, which would increase our pre-incentive fee net investment income and make it easier for our investment adviser to surpass the fixed hurdle rate and receive income based fees. 		                 
Risk Of Investments In Foreign Companies [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our investments in foreign companies or investments denominated in foreign currencies may involve significant risks in addition to the risks inherent in U.S. and U.S. denominated investments.

Our investment strategy contemplates potential investments in foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes (potentially at confiscatory levels), less liquid markets, less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

Although we expect most of our investments will be U.S. dollar denominated, our investments that are denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital
appreciation and political developments. We may employ hedging techniques to minimize these risks, but we cannot assure you that such strategies will be effective or without risk to us. 		                 
Risk Of COVID-19 Pandemic [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Certain of our portfolio companies’ businesses could be adversely affected by the effects of health pandemics or epidemics, including the ongoing COVID-19 pandemic, which has had, and may continue to have, a negative impact on our and our portfolio companies’ businesses and operations.

Certain of our portfolio companies’ businesses could be adversely affected by the effects of health pandemics or epidemics, including the ongoing COVID-19 global pandemic, the evolution of which continues to be uncertain. Recurring COVID-19 outbreaks around the world have heightened concerns relating to new and potentially more dangerous virus variants, which, if transmitted around the globe could lead to the re-introduction of restrictions that were in place in 2020, 2021, and to a lesser extent in 2022, or even the adoption of other more strict measures to combat outbreaks. Another severe outbreak of COVID-19 or another pandemic can disrupt our and our portfolio companies’ businesses and materially and adversely impact our and/or their financial results.

The COVID-19 pandemic contributed to certain conditions associated with the current macroeconomic environment and caused significant disruptions and instabilities in the global and U.S. financial markets or deteriorations in credit and financing conditions. A resurgence of COVID-19 or another pandemic with effects similar to those of COVID-19 may adversely affect our and our portfolio companies’ liquidity positions.
                  
Risk Of Exposure To Hedging Transactions [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may expose ourselves to risks if we engage in hedging transactions.

We have and may in the future enter into hedging transactions, which may expose us to risks associated with such transactions. We may utilize instruments such as forward contracts, currency options and interest rate swaps, caps, collars and floors to seek to hedge against fluctuations in the relative values of our portfolio positions from changes in currency exchange rates and market interest rates. Use of these hedging instruments may include counter-party credit risk.

Hedging against a decline in the values of our portfolio positions does not eliminate the possibility of fluctuations in the values of such positions or prevent losses if the values of such positions decline. However, such hedging can establish other positions designed to gain from those same developments, thereby offsetting the decline in the value of such portfolio positions. Such hedging transactions may also limit the opportunity for gain if the values of the underlying portfolio positions should increase. Moreover, it may not be possible to hedge against an exchange rate or interest rate fluctuation that is so generally anticipated that we are not able to enter into a hedging transaction at an acceptable price.

The success of our hedging transactions will depend on our ability to correctly predict movements in currencies and interest rates. Therefore, while we may enter into such transactions to seek to reduce currency exchange rate and interest rate risks, unanticipated changes in currency exchange rates or interest rates may result in poorer overall investment performance than if we had not engaged in any such hedging transactions. In addition, the degree of correlation between price movements of the instruments used in a hedging strategy and price movements in the portfolio positions being hedged may vary. Moreover, for a variety of reasons, we may not seek to (or be able to) establish a perfect correlation between such hedging instruments and the portfolio holdings being hedged. Any such imperfect correlation may prevent us from achieving the intended hedge and expose us to risk of loss. In addition, it may not be possible to hedge fully or perfectly against currency fluctuations affecting the value of securities denominated in non-U.S. currencies because the value of those securities is likely to fluctuate as a result of factors not related to currency fluctuations. See also “Risk Factors—Risks Relating to Our Business—We are exposed to risks associated with changes in interest rates, including the current rising interest rate environment.”

In August 2022, Rule 18f-4 under the Investment Company Act, regarding the ability of a BDC (or a registered investment company) to use derivatives and other transactions that create future payment or delivery obligations (except reverse repurchase agreements and similar financing transactions), became effective. Under the new rule, BDCs that make significant use of derivatives are required to operate subject to a value-at-risk leverage limit, adopt a derivatives risk management program and appoint a derivatives risk manager, and comply with various testing and board reporting requirements. These new requirements apply unless the BDC qualifies as a “limited derivatives user,” as defined under the adopted rules. Under the new rule, a BDC may enter into an unfunded commitment agreement that is not a derivatives transaction, such as an agreement to provide financing to a portfolio company, if the BDC has, among other things, a reasonable belief, at the time it enters into such an agreement, that it will have sufficient cash and cash equivalents to meet its obligations with respect to all of its unfunded commitment agreements, in each case as it becomes due. We currently operate as a “limited derivatives user” which may limit our ability to use derivatives and/or enter into certain other financial contracts.
                  
Risk Of Shares Trading At A Discount From Net Asset Value [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our shares of common stock have traded at a discount from net asset value and may do so again, which could limit our ability to raise additional equity capital.

Shares of closed‑end investment companies frequently trade at a market price that is less than the net asset value that is attributable to those shares. This characteristic of closed‑end investment companies is separate and distinct from the risk that our net asset value per share may decline. It is not possible to accurately predict whether any shares of our common stock will trade at, above, or below net asset value. In the recent past (including during portions of 2022 and much of 2020), the stocks of BDCs as an industry, including at times shares of our common stock, have traded below net asset value and during much of 2009 traded at near historic lows as a result of concerns over liquidity, leverage restrictions and distribution requirements. See “Risk Factors—Risks Relating to Our Business—The capital markets may experience periods of disruption and instability. Such market conditions may materially and adversely affect debt and equity capital markets, which may have a negative impact on our business and operations.” When our common stock is trading below its net asset value per share, we will generally not be able to issue additional shares of our common stock at its market price without first obtaining approval for such issuance from our stockholders and our independent directors. Pursuant to approval granted at a special meeting of stockholders held on August 4, 2022, we currently are permitted to sell or otherwise issue shares of our common stock at a price below net asset value, subject to certain limitations and determinations that must be made by our board of directors. Such stockholder approval expires on August 4, 2023.
                  
Risk Of Investors May Not Receive Dividends Or Interest Income [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
There is a risk that investors in our common stock may not receive dividends or that our dividends may not grow over time and that investors in our debt securities may not receive all of the interest income to which they are entitled.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to make a specified level of cash distributions or year-to-year increases in cash distributions. If we declare a dividend and if more stockholders opt to receive cash distributions rather than participate in our dividend reinvestment plan, we may be forced to sell some of our investments in order to make cash dividend payments.
In addition, due to the asset coverage test applicable to us as a BDC, we may be limited in our ability to make distributions. Certain of the Facilities may also limit our ability to declare dividends if we default under certain provisions. Further, if we invest a greater amount of assets in non-income producing securities, it could reduce the amount available for distribution and may also inhibit our ability to make required interest payments to holders of our debt, which may cause a default under the terms of our debt agreements. Such a default could materially increase our cost of raising capital, as well as cause us to incur penalties under the terms of our debt agreements. 		                 
Risk Of Provisions Of Maryland General Corporation Law [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Provisions of the Maryland General Corporation Law and of our charter and bylaws could deter takeover attempts and have an adverse effect on the price of our common stock.

The Maryland General Corporation Law (the “MGCL”), our charter and our bylaws contain provisions that may discourage, delay or make more difficult a change in control of Ares Capital or the removal of our directors. We are subject to the Maryland Business Combination Act (the “Business Combination Act”), subject to any applicable requirements of the Investment Company Act. Our board of directors has adopted a resolution exempting from the Business Combination Act any business combination between us and any other person, subject to prior approval of such business combination by our board, including approval by a majority of our disinterested directors. If the resolution exempting business combinations is repealed or our board or disinterested directors do not approve a business combination, the Business Combination Act may discourage third parties from trying to acquire control of us and may increase the difficulty of consummating such an offer. Our bylaws exempt from the Maryland Control Share Acquisition Act (the “Control Share Acquisition Act”) acquisitions of our stock by any person. If we amend our bylaws to repeal the exemption from the Control Share Acquisition Act, subject to any applicable requirements of the Investment Company Act, the Control Share Acquisition Act also may make it more difficult for a third party to obtain control of us and may increase the difficulty of consummating such an offer.

We have also adopted measures that may make it difficult for a third party to obtain control of us, including provisions of our charter classifying our board of directors into three classes serving staggered three-year terms, and provisions of our charter authorizing our board of directors to classify or reclassify shares of our stock into one or more classes or series, to cause the issuance of additional shares of our stock, and to amend our charter from time to time, without stockholder approval, to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that we have authority to issue. These provisions, as well as other provisions of our charter and bylaws, may discourage, delay, defer, make more difficult or prevent a transaction or a change in control that might otherwise be in stockholders’ best interest.
                  
Risk Of Bylaws Limiting Ability To Obtain Favorable Judicial Forum [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our bylaws designate the Circuit Court for Baltimore City, Maryland as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or other employees.
 
Our bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Circuit Court for Baltimore City, Maryland, or, if that Court does not have jurisdiction, the U.S. District Court for the District of Maryland, Baltimore Division, will be the sole and exclusive forum for: (i) any derivative action or proceeding brought on our behalf, (ii) any Internal Corporate Claim, as such term is defined in Section 1-101(p) of the MGCL, including, without limitation, (a) any action asserting a claim of breach of any duty owed by any of our directors or officers or other employees to us or to our stockholders or (b) any action asserting a claim against us or any of our directors or officers or other employees arising pursuant to any provision of the MGCL or our charter or bylaws or (iii) any action asserting a claim against us or any of our directors or officers or other employees that is governed by the internal affairs doctrine. Any person or entity purchasing or otherwise acquiring or holding any interest in our shares shall be deemed to have notice of and to have consented and waived any objection to this exclusive forum provision of our bylaws, as the same may be amended from time to time. Our board of directors, without stockholder approval, adopted this exclusive forum provision so that we can respond to such litigation more efficiently, reduce the costs associated with our responses to such litigation, particularly litigation that might otherwise be brought in multiple forums, and make it less likely that plaintiffs’ attorneys will be able to employ such litigation to coerce us into otherwise unjustified settlements. However, this exclusive forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that such stockholder believes is favorable for disputes with us or our directors, officers or other employees, if any, and may discourage lawsuits against us and our directors, officers or other employees, if any. We believe the risk of a court declining to enforce this exclusive forum provision is remote, as the General Assembly of Maryland has specifically amended the MGCL to authorize the adoption of such provision. However, if a court were to find such provision inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings notwithstanding that the MGCL expressly provides that the charter or bylaws of a Maryland corporation may require that any Internal Corporate Claim be brought only in courts sitting in one or more specified jurisdictions, we may incur additional costs that we do not currently anticipate associated with resolving such matters in other jurisdictions, which could adversely affect our business, financial condition and results of operations.
                  
Risk Of Investing In Common Stock [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Investing in our common stock may involve an above average degree of risk.

The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and volatility or loss of principal. Our investments in portfolio companies may be highly speculative and aggressive and, therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.
                  
Risk Of Market Price Fluctuations [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The market price of our common stock may fluctuate significantly.

The capital and credit markets have experienced periods of extreme volatility and disruption over the past several years (including throughout much of the past three fiscal years). The market price and liquidity of the market for shares of our common stock may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

•significant volatility in the market price and trading volume of securities of publicly traded RICs, BDCs or other companies in our sector, which are not necessarily related to the operating performance of these companies;

•price and volume fluctuations in the overall stock market from time to time;

•the inclusion or exclusion of our common stock from certain indices;

•changes in law, regulatory policies or tax guidelines, or interpretations thereof, particularly with respect to RICs or BDCs;

•loss of our RIC status;

•our ability to manage our capital resources effectively;

•changes in our earnings or variations in our operating results;

•changes in the value of our portfolio of investments;
•any shortfall in investment income or net investment income or any increase in losses from levels expected by investors or securities analysts;

•departure of Ares’ key personnel;

•short-selling pressure with respect to shares of our common stock or BDCs generally;

•future sales of our securities convertible into or exchangeable or exercisable for our common stock or the conversion of such securities, including the 2024 Convertible Notes;

•uncertainty surrounding the strength of the U.S. economy;

•uncertainty between the U.S. and other countries with respect to trade policies, treaties, and tariffs; and

•general economic trends and other external factors.

In the past, following periods of volatility in the market price of a company’s securities, securities class action litigation has often been brought against that company. If our stock price fluctuates significantly, we may be the target of securities litigation in the future. Securities litigation could result in substantial costs and divert management’s attention and resources from our business.
                  
Risk Of Future Issuance Of Preferred Stock [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may in the future determine to issue preferred stock, which could adversely affect the market value of our common stock.

The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the market price for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other payments to our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the Investment Company Act, preferred stock constitutes a “senior security” for purposes of the asset coverage test.
                  
Risk Of Net Asset Value Dilution [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The net asset value per share of our common stock may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock.
At a special meeting of stockholders held on August 4, 2022, subject to certain determinations required to be made by our board of directors, our stockholders approved our ability to sell or otherwise issue shares of our common stock, in an amount not exceeding 25% of our then outstanding common stock, at a price below the then current net asset value per share during a period that began on August 4, 2022 and expires on August 4, 2023.
In addition, at our 2009 annual stockholders meeting, our stockholders approved a proposal authorizing us to sell or otherwise issue warrants or securities to subscribe for or convertible into shares of our common stock subject to certain limitations (including, without limitation, that the number of shares issuable does not exceed 25% of our then outstanding common stock and that the exercise or conversion price thereof is not, at the date of issuance, less than the greater of the market value per share and the net asset value per share of our common stock). The authorization granted to sell or issue warrants or securities to subscribe for or convertible into shares of our common stock has no expiration.
Any decision to sell shares of our common stock below its then current net asset value per share or securities to subscribe for or convertible into shares of our common stock would be subject to the determination by our board of directors that such issuance is in our and our stockholders’ best interests.
If we were to sell shares of our common stock below its then current net asset value per share, such sales would result in an immediate dilution to the net asset value per share of our common stock. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in the stockholders’ interest in our earnings and assets and their voting interest in us than the increase in our assets resulting
from such issuance. Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted.
In addition, if we issue warrants or securities to subscribe for or convertible into shares of our common stock, subject to certain limitations, the exercise or conversion price per share could be less than net asset value per share at the time of exercise or conversion (including through the operation of anti‑dilution protections). Because we would incur expenses in connection with any issuance of such securities, such issuance could result in a dilution of the net asset value per share at the time of exercise or conversion. This dilution would include reduction in net asset value per share as a result of the proportionately greater decrease in the stockholders’ interest in our earnings and assets and their voting interest than the increase in our assets resulting from such issuance.
Further, if our current stockholders do not purchase any shares to maintain their percentage interest when we issue new shares, regardless of whether such offering is above or below the then current net asset value per share, their voting power will be diluted. 		                 
Risk Of Dilution In Ownership Percentage [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our stockholders will experience dilution in their ownership percentage if they opt out of our dividend reinvestment plan.

All dividends declared in cash payable to stockholders that are participants in our dividend reinvestment plan are automatically reinvested in shares of our common stock. As a result, our stockholders that opt out of our dividend reinvestment plan will experience dilution in their ownership percentage of our common stock over time.
                  
Risk Of Dilution Upon Conversion Of 2024 Convertible Notes [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our stockholders may experience dilution upon the conversion of the 2024 Convertible Notes.
As of December 31, 2022, the 2024 Convertible Notes are convertible into shares of our common stock beginning on December 1, 2023 or, under certain circumstances, earlier. As of December 31, 2022, the conversion price of the 2024 Convertible Notes was effectively $19.68 per share, in each case taking into account certain de minimis adjustments that will be made on the conversion date and subject to further adjustment in certain circumstances. If we elect to deliver shares of common stock upon a conversion at the time our tangible book value per share exceeds the conversion price in effect at such time, our stockholders may incur dilution. In addition, our stockholders will experience dilution in their ownership percentage of common stock upon our issuance of common stock in connection with the conversion of the 2024 Convertible Notes and any dividends paid on our common stock will also be paid on shares issued in connection with such conversion after such issuance.
                  
Risk Of Receiving Shares Of Common Stock As Dividends [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Our stockholders may receive shares of our common stock as dividends, which could result in adverse cash flow consequences to them.

In order to satisfy the Annual Distribution Requirement applicable to RICs, we have the ability to declare a large portion of a dividend in shares of our common stock instead of in cash. As long as a portion of such dividend is paid in cash (which portion could be as low as 20%) and certain requirements are met, the entire distribution would be treated as a dividend for U.S. federal income tax purposes. As a result, a stockholder would be taxed on 100% of the fair market value of the shares received as part of the dividend on the date a stockholder received it in the same manner as a cash dividend, even though most of the dividend was paid in shares of our common stock.
                  
Risk Of Substantial Sales Of Common Stock [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Sales of substantial amounts of our common stock in the public market may have an adverse effect on the market price of our common stock.

Sales of substantial amounts of our common stock, or the availability of such common stock for sale (including as a result of the conversion of our 2024 Convertible Notes into common stock), could adversely affect the prevailing market prices for our common stock. If this occurs and continues, it could impair our ability to raise additional capital through the sale of securities should we desire to do so.
                  
Risk Of Fluctuations Of Market Value Of Debt Securities [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
The trading market or market value of our publicly issued debt securities may fluctuate.

Our publicly issued debt securities may or may not have an established trading market. We cannot assure holders of our debt securities that a trading market for our publicly issued debt securities will ever develop or be maintained if developed. In addition to our creditworthiness, many factors may materially adversely affect the trading market for, and market value of, our publicly issued debt securities. These factors include, but are not limited to, the following:

•the time remaining to the maturity of these debt securities;
•the outstanding principal amount of debt securities with terms identical to these debt securities;

•the ratings assigned by national statistical ratings agencies;

•the general economic environment;

•the supply of such debt securities trading in the secondary market, if any;

•the redemption or repayment features, if any, of these debt securities;

•the level, direction and volatility of market interest rates generally; and

•market rates of interest higher or lower than rates borne by the debt securities.

Holders of our debt securities should also be aware that there may be a limited number of buyers if and when they decide to sell their debt securities. This too may materially adversely affect the market value of the debt securities or the trading market for the debt securities.
                  
Risk Of Adverse Terms Of Redemption [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Terms relating to redemption may materially adversely affect our noteholders’ return on any debt securities that we may issue.

If our noteholders’ debt securities are redeemable at our option, we may choose to redeem their debt securities at times when prevailing interest rates are lower than the interest rate paid on their debt securities. In addition, if our noteholders’ debt securities are subject to mandatory redemption, we may be required to redeem their debt securities also at times when prevailing interest rates are lower than the interest rate paid on their debt securities. In this circumstance, our noteholders may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as their debt securities being redeemed.
                  
Risk Of Credit Ratings Not Reflecting All Risks [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                 Our credit ratings may not reflect all risks of an investment in our debt securities. Our credit ratings are an assessment by third parties of our ability to pay our obligations. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of our debt securities. Our credit ratings, however, may not reflect the potential impact of risks related to market conditions generally or other factors discussed above on the market value of or trading market for the publicly issued debt securities.                  
Risk Of Global Economic, Political And Market Conditions [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Global economic, political and market conditions, including uncertainty about the financial stability of the United States, could have a significant adverse effect on our business, financial condition and results of operations.

Downgrades by rating agencies to the U.S. government’s credit rating or concerns about its credit and deficit levels in general could cause interest rates and borrowing costs to rise, which may negatively impact both the perception of credit risk associated with our debt portfolio and our ability to access the debt markets on favorable terms. In addition, a decreased U.S. government credit rating could create broader financial turmoil and uncertainty, which may weigh heavily on our financial performance and the value of our common stock. U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns or a recession in the United States.

Deterioration in the economic conditions in the Eurozone and other regions or countries globally and the resulting instability in global financial markets may pose a risk to our business. Financial markets have been affected at times by a number of global macroeconomic events, including the following: large sovereign debts and fiscal deficits of several countries in Europe and in emerging markets jurisdictions, levels of non‑performing loans on the balance sheets of European banks, the effect of the United Kingdom (the “U.K.”) leaving the European Union (the “EU”), instability in the Chinese capital markets and the COVID-19 pandemic. Global market and economic disruptions have affected, and may in the future affect, the U.S. capital markets, which could adversely affect our business, financial condition or results of operations. We cannot assure you that market disruptions in Europe and other regions or countries, including the increased cost of funding for certain governments and financial institutions, will not impact the global economy, and we cannot assure you that assistance packages will be available, or if available, be sufficient to stabilize countries and markets in Europe or elsewhere affected by a financial crisis. To the extent uncertainty regarding any economic recovery in Europe or elsewhere negatively impacts consumer
confidence and consumer credit factors, our business, financial condition and results of operations could be significantly and adversely affected. Moreover, there is a risk of both sector-specific and broad-based corrections and/or downturns in the equity and credit markets. Any of the foregoing could have a significant impact on the markets in which we operate and could have a material adverse impact on our business prospects and financial condition.

Various social and political circumstances in the U.S. and around the world (including wars and other forms of conflict, terrorist acts, security operations and catastrophic events such as fires, floods, earthquakes, tornadoes, hurricanes and global health epidemics or outbreaks of infectious diseases), may also contribute to increased market volatility and economic uncertainties or deterioration in the U.S. and worldwide. Such events, including rising trade tensions between the United States and China, other uncertainties regarding actual and potential shifts in U.S. and foreign, trade, economic and other policies with other countries, the war in Ukraine and Russia, and health epidemics and pandemics, could adversely affect our business, financial condition or results of operations. These market and economic disruptions could negatively impact the operating results of our portfolio companies.
                  
Risk Of Fluctuations In Quarterly Results [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We may experience fluctuations in our quarterly results.

We could experience fluctuations in our quarterly operating results due to a number of factors, including the interest rates payable on the debt investments we make, the default rates on such investments, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.
                  
Risk Of Dependency On Information Systems [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
We are dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect our liquidity, financial condition or results of operations.

Our business is dependent on our and third parties’ communications and information systems. Further, in the ordinary course of our business we or our investment adviser may engage certain third party service providers to provide us with services necessary for our business. Any failure or interruption of those systems or services, including as a result of the termination or suspension of an agreement with any third-party service providers, could cause delays or other problems in our business activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

•sudden electrical or telecommunications outages;

•natural disasters such as earthquakes, tornadoes and hurricanes;

•disease pandemics;

•events arising from local or larger scale political or social matters, including terrorist acts; and

•cyber-attacks.

These events, in turn, could have a material adverse effect on our business, financial condition and operating results and negatively affect the market price of our common stock and our ability to pay dividends to our stockholders.
                  
Risk Of Cybersecurity Threats [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Cybersecurity risks and cyber incidents may adversely affect our business or the business of our portfolio companies by causing a disruption to our operations or the operations of our portfolio companies, a compromise or corruption of our confidential information or the confidential information of our portfolio companies and/or damage to our business relationships or the business relationships of our portfolio companies, all of which could negatively impact the business, financial condition and operating results of us or our portfolio companies.

A cyber incident is considered to be any adverse event that threatens the confidentiality, integrity or availability of the information resources of us or our portfolio companies. The efficient operation of our business is dependent on computer hardware and software systems, as well as data processing systems and the secure processing, storage and transmission of information, all of which are potentially vulnerable to security breaches and cyber incidents or other data security breaches.
These incidents may be an intentional attack or an unintentional event and could involve gaining unauthorized access to our information systems or those of our portfolio companies for purposes of misappropriating assets, stealing confidential information, corrupting data or causing operational disruption. The risk of a security breach or disruption, particularly through cyber-attacks or cyber intrusions, including by computer hackers, nation-state affiliated actors, and cyber terrorists, has generally increased as the number, intensity and sophistication of attempted attacks and intrusions from around the world have increased. We and our investment adviser’s employees have been and expect to continue to be the target of fraudulent calls, emails and other forms of potentially malicious or otherwise negatively impacting activities and attempts to gain unauthorized access to confidential, personal or other sensitive information. The result of these incidents may include disrupted operations, misstated or unreliable financial data, liability for stolen assets or information, fines or penalties, investigations, increased cybersecurity protection and insurance costs, litigation, and damage to business relationships and reputations causing our business and results of operations to suffer.

The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. As our and our portfolio companies’ reliance on technology has increased, so have the risks posed to our information systems, both internal and those provided by Ares Management and third-party service providers, and the information systems of our portfolio companies. Ares Management has implemented processes, procedures and internal controls to help mitigate cybersecurity risks and cyber intrusions, but these measures, as well as our increased awareness of the nature and extent of a risk of a cyber incident, do not guarantee that a cyber incident will not occur and/or that our financial results, operations or confidential information will not be negatively impacted by such an incident. Even the most well-protected information, networks, systems and facilities remain potentially vulnerable because the techniques used in such attempted security breaches evolve and generally are not recognized until launched against a target, and in some cases are designed not to be detected and, in fact, may not be detected. Accordingly, we and our service providers may be unable to anticipate these techniques or to implement adequate security barriers or other preventative measures, and thus it is impossible for us and our service providers to entirely mitigate this risk. Cybersecurity risks require continuous and increasing attention and other resources from us to, among other actions, identify and quantify these risks, upgrade and expand our technologies, systems and processes to adequately address such risks. Such attention diverts time and other resources from other activities and there is no assurance that our efforts will be effective.

In addition, cybersecurity has become a top priority for global lawmakers and regulators, and some jurisdictions have proposed or enacted laws requiring companies to notify regulators and individuals of data security breaches involving certain types of personal data. In particular, state and federal laws and regulations related to cybersecurity compliance continue to evolve and change, which may require substantial investments in new technology, software and personnel, which could affect our profitability. These changes may also result in enhanced and unforeseen consequences for cyber-related breaches and incidents, which may further adversely affect our profitability. If we fail to comply with the relevant and increasing complex laws and regulations, we could suffer financial losses, a disruption of our business, liability to investors, regulatory intervention or reputational damage.
                  
Risk Of Ineffective Internal Controls [Member]                                    
General Description of Registrant [Abstract]                                    
Risk [Text Block]                
Ineffective internal controls could impact our business and operating results.

Our internal control over financial reporting may not prevent or detect misstatements because of its inherent limitations, including the possibility of human error, the circumvention or overriding of controls, or fraud. Even effective internal controls can provide only reasonable assurance with respect to the preparation and fair presentation of financial statements. If we fail to maintain the adequacy of our internal controls, including any failure to implement required new or improved controls, or if we experience difficulties in their implementation, our business and operating results could be harmed and we could fail to meet our financial reporting obligations.
                  
Revolving Credit Facility [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 2,246 $ 1,507 $ 1,180 $ 2,250 $ 1,064 $ 395 $ 571 $ 515 $ 170 $ 0
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 0
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 Revolving Credit Facility                  
Long Term Debt, Structuring [Text Block]                 We are party to a senior secured revolving credit facility (as amended and restated, the “Revolving Credit Facility”), that allows us to borrow up to $4.8 billion at any one time outstanding. The Revolving Credit Facility consists of a $1.1 billion term loan tranche and a $3.7 billion revolving tranche. For $1.0 billion of the term loan tranche, the stated maturity date is March 31, 2027. For $28 million of the term loan tranche, the stated maturity date is March 31, 2026. For the remaining $50 million of the term loan tranche, the stated maturity date is March 30, 2025. For $3.5 billion of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2026 and March 31, 2027, respectively. For $107 million of the revolving tranche, the end of the revolving period and the stated maturity date are March 31, 2025 and March 31, 2026, respectively. For the remaining $150 million of the revolving tranche, the end of the revolving period and the stated maturity date are March 30, 2024 and March 30, 2025, respectively. The Revolving Credit Facility also provides for a feature that allows us, under certain circumstances, to increase the overall size of the Revolving Credit Facility to a maximum of $7.3 billion. The interest rate charged on the Revolving Credit Facility is based on Secured Overnight Financing Rate (“SOFR”) (or an alternative rate of interest for certain loans, commitments and/or other extensions of credit denominated in Sterling, Canadian Dollars, Euros and certain other foreign currencies) plus a credit spread adjustment of 0.10% and an applicable spread of either 1.75% or 1.875% or an “alternate base rate” (as defined in the agreements governing the Revolving Credit Facility) plus a credit spread adjustment of 0.10% and an applicable spread of either 0.75% or 0.875%, in each case, determined monthly based on the total amount of the borrowing base relative to the sum of (i) the greater of (a) the aggregate amount of revolving exposure and term loans outstanding under the Revolving Credit Facility and (b) 85% of the total commitments of the Revolving Credit Facility (or, if higher, the total revolving exposure) plus (ii) other debt, if any, secured by the same collateral as the Revolving Credit Facility. As of December 31, 2022, the applicable spread in effect was 1.75%. We are also required to pay a letter of credit fee of either 2.00% or 2.125% per annum on letters of credit issued, determined monthly based on the total amount of the borrowing base relative to the total commitments of the Revolving Credit Facility and other debt, if any, secured by the same collateral as the Revolving Credit Facility. Additionally, we are required to pay a commitment fee of 0.375% per annum on any unused portion of the Revolving Credit Facility. As of December 31, 2022, there was $2.2 billion outstanding under the Revolving Credit Facility and we were in compliance in all material respects with the terms of the Revolving Credit Facility.                  
Revolving Funding Facility [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 800 $ 762 $ 1,027 $ 638 $ 520 $ 600 $ 155 $ 250 $ 324 $ 185
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 Revolving Funding Facility                  
Long Term Debt, Structuring [Text Block]                 We and our consolidated subsidiary, Ares Capital CP Funding LLC (“Ares Capital CP”), are party to a revolving funding facility (as amended, the “Revolving Funding Facility”), that allows Ares Capital CP to borrow up to $1.8 billion at any one time outstanding. The Revolving Funding Facility is secured by all of the assets held by, and the membership interest in, Ares Capital CP. The end of the reinvestment period and the stated maturity date for the Revolving Funding Facility are December 29, 2024 and December 29, 2026, respectively. The interest rate charged on the Revolving Funding Facility is based on SOFR plus a credit spread adjustment of 0.10% or a “base rate” (as defined in the agreements governing the Revolving Funding Facility) plus an applicable spread of 1.90% per annum. Ares Capital CP is also required to pay a commitment fee of between 0.50% and 1.25% per annum depending on the size of the unused portion of the Revolving Funding Facility. As of December 31, 2022, there was $800 million outstanding under the Revolving Funding Facility and we and Ares Capital CP were in compliance in all material respects with the terms of the Revolving Funding Facility.                  
SMBC Funding Facility [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 451 $ 401 $ 453 $ 301 $ 245 $ 60 $ 105 $ 110 $ 62 $ 0
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 0
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 SMBC Funding Facility                  
Long Term Debt, Structuring [Text Block]                 We and our consolidated subsidiary, Ares Capital JB Funding LLC (“ACJB”), are party to a revolving funding facility (as amended, the “SMBC Funding Facility”), with ACJB, as the borrower, and Sumitomo Mitsui Banking Corporation, as the administrative agent and collateral agent, that allows ACJB to borrow up to $800 million at any one time outstanding. The SMBC Funding Facility also provides for a feature that allows ACJB, subject to receiving certain consents, to increase the overall size of the SMBC Funding Facility to $1.0 billion. The SMBC Funding Facility is secured by all of the assets held by ACJB. The end of the reinvestment period and the stated maturity date for the SMBC Funding Facility are May 28, 2024 and May 28, 2026, respectively. The reinvestment period and the stated maturity date are both subject to two one-year extensions by mutual agreement. The interest rate charged on the SMBC Funding Facility is based on an applicable spread of either 1.75% or 2.00% over LIBOR or 0.75% or 1.00% over a “base rate” (as defined in the agreements governing the SMBC Funding Facility), in each case, determined monthly based on the amount of the average borrowings outstanding under the SMBC Funding Facility. As of December 31, 2022, the applicable spread in effect was 1.75%. ACJB is also required to pay a commitment fee of between 0.50% and 1.00% per annum depending on the size of the unused portion of the SMBC Funding Facility. As of December 31, 2022, there was $451 million outstanding under the SMBC Funding Facility and we and ACJB were in compliance in all material respects with the terms of the SMBC Funding Facility.                  
BNP Funding Facility [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 245 $ 0 $ 150              
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000              
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 BNP Funding Facility                  
Long Term Debt, Structuring [Text Block]                 We and our consolidated subsidiary, ARCC FB Funding LLC (“AFB”), are party to a revolving funding facility (as amended, the “BNP Funding Facility”) with AFB, as the borrower, and BNP Paribas, as the administrative agent and lender, that allows AFB to borrow up to $300 million at any one time outstanding. The BNP Funding Facility is secured by all of the assets held by AFB. The end of the reinvestment period and the stated maturity date for the BNP Funding Facility are June 11, 2023 and June 11, 2025, respectively. The reinvestment period and the stated maturity date are both subject to a one-year extension by mutual agreement. As of December 31, 2022, the interest rate charged on the BNP Funding Facility was based on three month LIBOR, or a “base rate” (as defined in the agreements governing the BNP Funding Facility) plus a margin of (i) 1.80% during the reinvestment period and (ii) 2.30% following the reinvestment period. Beginning on December 11, 2020, AFB is required to pay a commitment fee of between 0.00% and 1.25% per annum depending on the size of the unused portion of the BNP Funding Facility. As of December 31, 2022, there was $245 million outstanding under the BNP Funding Facility and we and AFB were in compliance in all material respects with the terms of the BNP Funding Facility. See “Recent Developments,” as well as Note 15 to our consolidated financial statements for the year ended December 31, 2022 for a subsequent event relating to the BNP Funding Facility.                  
SBA Debentures [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                           $ 0 $ 25 $ 22    
Senior Securities Coverage per Unit                           $ 0 $ 2,296,000,000 $ 2,213,000,000    
February 2016 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                               $ 575 $ 575 $ 575
Senior Securities Coverage per Unit                               $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
June 2016 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                               $ 230 $ 230 $ 230
Senior Securities Coverage per Unit                               $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
2017 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                             $ 163 $ 163 $ 163 $ 163
Senior Securities Coverage per Unit                             $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
2018 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                           $ 270 $ 270 $ 270 $ 270 $ 270
Senior Securities Coverage per Unit                           $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
2019 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                         $ 300 $ 300 $ 300 $ 300 $ 300 $ 300
Senior Securities Coverage per Unit                         $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
2022 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                   $ 388 $ 388 $ 388 $ 388 $ 388        
Senior Securities Coverage per Unit                   $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000        
2024 Convertible Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 403 $ 403 $ 403 $ 403            
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000            
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 2024 Convertible Notes                  
Long Term Debt, Structuring [Text Block]                 We have issued $403 million in aggregate principal amount of unsecured convertible notes that mature on March 1, 2024 (the “2024 Convertible Notes”) unless previously converted or repurchased in accordance with its terms. We do not have the right to redeem the 2024 Convertible Notes prior to maturity. The 2024 Convertible Notes bear interest at a rate of 4.625% per annum, payable semi-annually. In certain circumstances, assuming the conversion date below has not already passed, the 2024 Convertible Notes will be convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election, at the conversion rate (listed below as of December 31, 2022) subject to customary anti-dilution adjustments and the requirements of the indenture (the “2024 Convertible Notes Indenture”). Prior to the close of business on the business day immediately preceding the conversion date (listed below), holders may convert their 2024 Convertible Notes only under certain circumstances set forth in the 2024 Convertible Notes Indenture. On or after the conversion date until the close of business on the second scheduled trading day immediately preceding the maturity date for the 2024 Convertible Notes, holders may convert their 2024 Convertible Notes at any time. In addition, if we engage in certain corporate events as described in the 2024 Convertible Notes Indenture, holders of the 2024 Convertible Notes may require us to repurchase for cash all or part of the 2024 Convertible Notes at a repurchase price equal to 100% of the principal amount of the 2024 Convertible Notes to be repurchased, plus accrued and unpaid interest through, but excluding, the required repurchase date.                  
2018 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                           $ 750 $ 750 $ 750 $ 750 $ 600
Senior Securities Coverage per Unit                           $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
2020 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                         $ 600 $ 600 $ 600 $ 600 $ 400  
Senior Securities Coverage per Unit                         $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000  
2022 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                     $ 600 $ 600 $ 600 $ 600 $ 600      
Senior Securities Coverage per Unit                     $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000      
February 2022 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                                 $ 144 $ 144
Senior Securities Coverage per Unit                                 $ 2,292,000,000 $ 2,547,000,000
Senior Securities Average Market Value per Unit                                 $ 1,024,000,000 $ 1,043,000,000
October 2022 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                             $ 183 $ 183 $ 183 $ 183
Senior Securities Coverage per Unit                             $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
Senior Securities Average Market Value per Unit                             $ 1,017,000,000 $ 1,011,000,000 $ 1,013,000,000 $ 993,000,000
2040 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                                 $ 200 $ 200
Senior Securities Coverage per Unit                                 $ 2,292,000,000 $ 2,547,000,000
Senior Securities Average Market Value per Unit                                 $ 1,040,000,000 $ 1,038,000,000
2023 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 750 $ 750 $ 750 $ 750 $ 750 $ 750        
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000        
2024 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 900 $ 900 $ 900 $ 900            
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000            
March 2025 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 600 $ 600 $ 600 $ 600 $ 600          
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000          
July 2025 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 1,250 $ 1,250 $ 750              
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000              
January 2026 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 1,150 $ 1,150 $ 1,150              
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000 $ 1,824,000,000              
July 2026 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 1,000 $ 1,000                
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000                
2027 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 500                  
Senior Securities Coverage per Unit                 $ 1,772,000,000                  
2028 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 1,250 $ 1,250                
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000                
2031 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                 $ 700 $ 700                
Senior Securities Coverage per Unit                 $ 1,772,000,000 $ 1,792,000,000                
2047 Notes [Member]                                    
Financial Highlights [Abstract]                                    
Senior Securities Amount                     $ 230 $ 230 $ 230 $ 230 $ 230 $ 230 $ 230 $ 230
Senior Securities Coverage per Unit                     $ 1,824,000,000 $ 2,042,000,000 $ 2,362,000,000 $ 2,415,000,000 $ 2,296,000,000 $ 2,213,000,000 $ 2,292,000,000 $ 2,547,000,000
Senior Securities Average Market Value per Unit                     $ 1,013,000,000 $ 1,033,000,000 $ 1,013,000,000 $ 1,021,000,000 $ 1,015,000,000 $ 1,011,000,000 $ 985,000,000 $ 972,000,000
Unsecured Notes [Member]                                    
Capital Stock, Long-Term Debt, and Other Securities [Abstract]                                    
Long Term Debt, Title [Text Block]                 Unsecured Notes                  
Long Term Debt, Structuring [Text Block]                
We issued certain unsecured notes (each issuance of which is referred to herein using the “defined term” set forth under the “Unsecured Notes” column of the table below and collectively referred to as the “Unsecured Notes”), that pay interest semi-annually and all principal amounts are due upon maturity. Each of the Unsecured Notes may be redeemed in whole or in part at any time at our option at a redemption price equal to par plus a “make whole” premium, if applicable, as determined pursuant to the indentures governing each of the Unsecured Notes, plus any accrued and unpaid interest. Certain key terms related to the features for the Unsecured Notes as of December 31, 2022 are listed below.

(dollar amounts in millions)
Unsecured Notes		Aggregate Principal Amount IssuedInterest RateOriginal Issuance DateMaturity Date
2023 Notes$750 3.500%August 10, 2017February 10, 2023
2024 Notes$900 4.200%June 10, 2019June 10, 2024
March 2025 Notes$600 4.250%January 11, 2018March 1, 2025
July 2025 Notes$1,250 3.250%January 15, 2020July 15, 2025
January 2026 Notes$1,150 3.875%July 15, 2020January 15, 2026
July 2026 Notes$1,000 2.150%January 13, 2021July 15, 2026
2027 Notes$500 2.875%January 13, 2022June 15, 2027
2028 Notes$1,250 2.875%June 10, 2021June 15, 2028
2031 Notes$700 3.200%November 4, 2021November 15, 2031

See Note 5 to our consolidated financial statements for the year ended December 31, 2022 for more information on our debt obligations.

As of December 31, 2022, we were in compliance in all material respects with the terms of the 2024 Convertible Notes Indenture and the indentures governing the Unsecured Notes.

The 2024 Convertible Notes and the Unsecured Notes are our senior unsecured obligations and rank senior in right of payment to any future indebtedness that is expressly subordinated in right of payment to the 2024 Convertible Notes and the Unsecured Notes; equal in right of payment to our existing and future unsecured indebtedness that is not expressly subordinated; effectively junior in right of payment to any of our secured indebtedness (including existing unsecured indebtedness that we later secure) to the extent of the value of the assets securing such indebtedness; and structurally junior to all existing and future indebtedness (including trade payables) incurred by our subsidiaries, financing vehicles or similar facilities.
                  
v3.22.4
SIGNIFICANT ACCOUNTING POLICIES (Policies)
 12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation
 
The accompanying consolidated financial statements have been prepared on the accrual basis of accounting in conformity with U.S. generally accepted accounting principles (“GAAP”), and include the accounts of the Company and its consolidated subsidiaries. The Company is an investment company following accounting and reporting guidance in Accounting Standards Codification (“ASC”) 946, Financial Services-Investment Companies. The consolidated financial statements reflect all adjustments and reclassifications that, in the opinion of management, are necessary for the fair presentation of the results of operations and financial condition as of and for the periods presented. All significant intercompany balances and transactions have been eliminated.
Cash, Cash Equivalents
Cash, Cash Equivalents and Restricted Cash
 
Cash and cash equivalents include funds from time to time deposited with financial institutions and short-term, liquid investments in a money market account. Cash and cash equivalents are carried at cost which approximates fair value.
Restricted Cash Restricted cash primarily relates to cash received by the Company on behalf of participating lenders as a result of the Company’s role as administrative agent for certain loans. The cash received is generally distributed to participating lenders shortly after the receipt of such cash.
Concentration of Credit Risk
Concentration of Credit Risk
 
The Company places its cash and cash equivalents with financial institutions and, at times, cash held in money market accounts may exceed the Federal Deposit Insurance Corporation insured limit.
Investments
Investments
 
Investment transactions are recorded on the trade date. Realized gains or losses are measured by the difference between the net proceeds from the repayment or sale and the amortized cost basis of the investment using the specific identification method without regard to unrealized gains or losses previously recognized, and include investments charged off during the period, net of recoveries. Unrealized gains or losses primarily reflect the change in investment values, including the reversal of previously recorded unrealized gains or losses when gains or losses are realized.

Effective October 1, 2022, pursuant to Rule 2a-5 under the 1940 Act, the Company’s board of directors selected the Company’s investment adviser as the Company’s valuation designee to perform the fair value determinations for investments held by the Company without readily available market quotations.
 
Investments for which market quotations are readily available are typically valued at such market quotations. In order to validate market quotations, the Company looks at a number of factors to determine if the quotations are representative of fair value, including the source and nature of the quotations. Debt and equity securities that are not publicly traded or whose market prices are not readily available (i.e., substantially all of the Company’s investments) are valued at fair value as determined in good faith by the Company’s investment adviser, as the valuation designee, subject to the oversight of its board of directors, based on, among other things, the input of the Company’s independent third-party valuation firms that have been engaged to support the valuation of such portfolio investments at least once during a trailing 12-month period (with certain de minimis exceptions) and under a valuation policy and a consistently applied valuation process. The valuation process is conducted at the end of each fiscal quarter by the Company’s investment adviser, and a portion of the Company’s investment portfolio at fair value is subject to review by an independent third-party valuation firm each quarter. In addition, the Company’s independent registered public accounting firm obtains an understanding of, and performs select procedures relating to, the Company’s valuation process within the context of performing the integrated audit.
 
As part of the valuation process, the Company’s investment adviser may take into account the following types of factors, if relevant, in determining the fair value of the Company’s investments: the enterprise value of a portfolio company (the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time), the nature and realizable value of any collateral, the portfolio company’s ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to any similar publicly traded securities, changes in the interest rate environment and the credit markets, which may affect the price at which similar investments would trade in their principal markets and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent sale occurs, the Company’s investment adviser considers the pricing indicated by the external event to corroborate the valuation.
 
Because there is not a readily available market value for most of the investments in its portfolio, substantially all of the Company’s portfolio investments are valued at fair value as determined in good faith by its investment adviser, as the valuation designee, as described herein. Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period. Additionally, the fair value of the Company’s investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that the Company may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly traded securities. If the Company was required to liquidate a portfolio investment in a forced or liquidation sale, the Company could realize significantly less than the value at which the Company has recorded it.
 
In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the unrealized gains or losses reflected in the valuations currently assigned.

The Company’s investment adviser, as the valuation designee, subject to the oversight of its board of directors undertakes a multi-step valuation process each quarter, as described below:

•The Company’s quarterly valuation process begins with a preliminary valuation being prepared by the investment professionals responsible for the portfolio investment in conjunction with the Company’s portfolio management and valuation team.

•Preliminary valuations are reviewed and discussed by the valuation committee of the Company’s investment adviser.

•The valuation committee of the Company’s investment adviser determines the fair value of each investment in the Company’s portfolio without a readily available market quotation in good faith based on, among other things, the input of the independent third-party valuation firms, where applicable.
 
See Note 8 for more information on the Company’s valuation process.
Interest Income Recognition
Interest Income Recognition
 
Interest income is recorded on an accrual basis and includes the accretion of discounts, amortization of premiums and payment-in-kind (“PIK”) interest. Discounts from and premiums to par value on investments purchased are accreted/amortized into interest income over the life of the respective security using the effective yield method. To the extent loans contain PIK provisions, PIK interest, computed at the contractual rate specified in each applicable agreement, is accrued and recorded as interest income and added to the principal balance of the loan. PIK interest income added to the principal balance is generally collected upon repayment of the outstanding principal. To maintain the Company’s status as a RIC, this non-cash source of income must be paid out to stockholders in the form of dividends for the year the income was earned, even though the Company has not yet collected the cash. The amortized cost of investments represents the original cost adjusted for any accretion of discounts, amortization of premiums and PIK interest.

Loans are generally placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected in full. Accrued and unpaid interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon the Company’s judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest are paid or there is no longer any reasonable doubt that such principal or interest will be collected in full and, in the Company’s judgment, are likely to remain current. The Company may make exceptions to this policy if the loan has sufficient collateral value (i.e., typically measured as enterprise value of the portfolio company) or is in the process of collection.
Dividend Income Recognition
Dividend Income Recognition 

Dividend income on preferred equity is recorded on an accrual basis to the extent that such amounts are payable by the portfolio company and are expected to be collected. Dividend income on common equity is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies. To the extent a preferred equity contains PIK provisions, PIK dividends, computed at the contractual rate specified in each applicable agreement, are accrued and recorded as dividend income and added to the principal balance of the preferred equity. PIK dividends added to the principal balance are generally collected upon redemption of the equity.
Capital Structuring Service Fees and Other Income
Capital Structuring Service Fees and Other Income
 
In pursuit of the Company’s investment objective, the Company’s investment adviser seeks to provide assistance to its portfolio companies and in return the Company may receive fees for capital structuring services. These fees are fixed based on contractual terms, are generally only available to the Company as a result of the Company’s underlying investments, are normally paid at the closing of the investments, are generally non-recurring and non-refundable and are recognized as revenue when earned upon closing of the investment. The services that the Company’s investment adviser provides vary by investment, but generally include reviewing existing credit facilities, arranging bank financing, arranging equity financing, structuring financing from multiple lenders, structuring financing from multiple equity investors, restructuring existing loans, raising equity
and debt capital, and providing general financial advice, which concludes upon closing of the investment. Any services of the above nature subsequent to the closing would generally generate a separate fee payable to the Company. In certain instances where the Company is invited to participate as a co-lender in a transaction and does not provide significant services in connection with the investment, a portion of loan fees paid to the Company in such situations will be deferred and amortized over the contractual life of the loan.

Other income includes amendment fees that are fixed based on contractual terms and are generally non-recurring and
non-refundable and are recognized as revenue when earned upon closing of the related transaction. Other income also includes fees for management and consulting services, agency services, loan guarantees, commitments, and other services rendered by the Company to portfolio companies. Such fees are fixed based on contractual terms and are recognized as income as services are rendered.
Foreign Currency Translation
Foreign Currency Translation
 
The Company’s books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:
 
(1)Fair value of investment securities, other assets and liabilities—at the exchange rates prevailing at the end of the period.

(2)Purchases and sales of investment securities, income and expenses—at the exchange rates prevailing on the respective dates of such transactions, income or expenses.
 
Results of operations based on changes in foreign exchange rates are separately disclosed in the statement of operations, if any. Foreign security and currency translations may involve certain considerations and risks not typically associated with investing in U.S. companies and U.S. government securities. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices more volatile than those of comparable U.S. companies or U.S. government securities.
Derivative Instruments
Derivative Instruments
 
The Company does not utilize hedge accounting and as such values its derivatives at fair value with the unrealized gains or losses recorded in “net unrealized gains (losses) from foreign currency and other transactions” in the Company’s consolidated statement of operations.
Equity Offering Expenses
Equity Offering Expenses
 
The Company’s offering costs are charged against the proceeds from equity offerings when proceeds are received.
Debt Issuance Costs
Debt Issuance Costs
 
Debt issuance costs are amortized over the life of the related debt instrument using the straight line method or the effective yield method, depending on the type of debt instrument.
Secured Borrowings
Secured Borrowings

The Company follows the guidance in ASC Topic 860, Transfers and Servicing, when accounting for participations and other partial loan sales. Certain loan sales do not qualify for sale accounting under ASC Topic 860 because these sales do not meet the definition of a “participating interest,” as defined in the guidance, in order for sale treatment to be allowed. Participations or other partial loan sales which do not meet the definition of a participating interest or which are not eligible for sale accounting remain as an investment on the consolidated balance sheet as required under GAAP and the proceeds are recorded as a secured borrowing. Secured borrowings are carried at fair value.
Leases Leases
The Company is obligated under a number of operating leases pursuant to which it is leasing office facilities from third parties with remaining terms ranging from approximately one to four years. Such operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities in the accompanying consolidated balance sheets. The Company does not have any finance leases.

The ROU asset represents the Company’s right to use an underlying asset for the lease term and the operating lease liability represents the Company’s obligation to make lease payments arising from such lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the remaining lease term. The Company’s leases do not provide an implicit discount rate, and as such the Company uses its weighted average borrowing rate based on the information available at the commencement date in determining the present value of the remaining lease payments. Lease expense is recognized on a straight-line basis over the remaining lease term. The Company has elected as a practical expedient to treat non-lease components as part of the lease as these components are not significant when compared to the lease component.
Income Taxes
Income Taxes
 
The Company has elected to be treated as a RIC under the Code and operates in a manner so as to qualify for the tax treatment applicable to RICs. To qualify as a RIC, the Company must, among other requirements, meet certain source-of- income and asset diversification requirements and timely distribute to its stockholders at least 90% of its investment company taxable income, as defined by the Code, for each year. The Company has made and intends to continue to make the requisite distributions to its stockholders, which will generally relieve the Company from U.S. federal corporate-level income taxes.
 
Depending on the level of taxable income earned in a tax year, the Company may choose to carry forward taxable income in excess of current year dividend distributions from such current year taxable income into the next tax year and pay a 4% excise tax on such income, as required. To the extent that the Company determines that its estimated current year taxable income will be in excess of estimated dividend distributions for the current year from such income, the Company accrues excise tax, if any, on estimated excess taxable income as such taxable income is earned.
 
The Company may hold certain portfolio company investments through consolidated taxable subsidiaries. Such subsidiaries may be subject to U.S. federal and state corporate-level income taxes. These consolidated subsidiaries recognize deferred tax assets and liabilities for the estimated future tax effects attributable to temporary differences between the tax basis of certain assets and liabilities and the reported amounts included in the accompanying consolidated balance sheet using the applicable statutory tax rates in effect for the year in which any such temporary differences are expected to reverse.
Dividends to Common Stockholders
Dividends to Common Stockholders
 
Dividends and distributions to common stockholders are recorded on the ex-dividend date. The amount to be paid out as a dividend is determined by the Company’s board of directors each quarter and is generally based upon the earnings estimated by management and considers the level of undistributed taxable income carried forward from the prior year for distribution in the current year. Net realized capital gains, if any, are generally distributed, although the Company may decide to retain such capital gains for investment.
 
The Company has adopted a dividend reinvestment plan that provides for reinvestment of any distributions the Company declares in cash on behalf of its stockholders, unless a stockholder elects to receive cash. As a result, if the Company’s board of directors authorizes, and the Company declares, a cash dividend, then the Company’s stockholders who have not “opted out” of the Company’s dividend reinvestment plan will have their cash dividends automatically reinvested in additional shares of the Company’s common stock, rather than receiving the cash dividend. The Company may use newly issued shares to implement the dividend reinvestment plan or, if the Company is otherwise permitted under applicable law to purchase such shares, the Company may purchase shares in the open market in connection with the Company’s obligations under the dividend reinvestment plan.
Use of Estimates in the Preparation of Financial Statements
Use of Estimates in the Preparation of Financial Statements
 
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of actual and contingent assets and liabilities at the date of the financial statements and the reported amounts of income or loss and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates include the valuation of investments.
Recent Accounting Pronouncements
Recent Accounting Pronouncements

The Company considers the applicability and impact of all accounting standard updates (“ASU”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not listed below were assessed and either determined to be not applicable or expected to have minimal impact on its consolidated financial statements.

In August 2020, the FASB issued ASU No. 2020-06, “Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” which simplifies the accounting for convertible instruments by removing the separation models for (1) convertible debt with a cash conversion feature and (2) convertible instruments with a beneficial conversion feature. As a result, after adoption, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost. Additionally, ASU 2020-06 requires the application of the if-converted method to calculate the impact of convertible instruments on diluted earnings per share. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and can be adopted on either a fully retrospective or modified retrospective basis. The Company adopted ASU 2020-06 on January 1, 2022, electing the modified retrospective transition method that allows for a cumulative-effect adjustment in the period of adoption. As a result of adopting the guidance, the Company is no longer separating the convertible instruments into debt and equity components, and is instead accounting for convertible instruments as entirely debt.

The impact of the Company’s adoption under the modified retrospective basis required a cumulative effect adjustment to opening net assets for the remaining unamortized discount on the $403 in aggregate principal amount of unsecured convertible notes outstanding as of March 31, 2022, and a requirement for the Company to calculate diluted earnings per share using the if-converted method which assumes full share settlement for the aggregate value of the $403 in aggregate principal amount of unsecured convertible notes. The Company’s adoption of this guidance did not have a material impact on the Company’s financial position, results of operations or cash flows. See Notes 5 and 10 for additional information on the effects of the adoption of ASU 2020-06.

In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848),” which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform. In January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848), which expanded the scope of Topic 848 to include derivative instruments impacted by discounting transition. ASU 2020-04 and ASU 2021-01 are effective for all entities through December 31, 2022. The expedients and exceptions provided by the amendments do not apply to contract modifications and hedging relationships entered into or evaluated after December 31, 2022, except for hedging transactions as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which deferred the sunset day of this guidance to December 31, 2024. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.
v3.22.4
SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Reconciliation of Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash, cash equivalents and restricted cash in the consolidated balance sheet to the total amount shown at the end of the applicable period in the consolidated statement of cash flows:
 As of December 31,
 20222021
Cash and cash equivalents$303 $372 
Restricted cash34 114 
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows$337 $486 
Reconciliation of Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash, cash equivalents and restricted cash in the consolidated balance sheet to the total amount shown at the end of the applicable period in the consolidated statement of cash flows:
 As of December 31,
 20222021
Cash and cash equivalents$303 $372 
Restricted cash34 114 
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows$337 $486 
v3.22.4
AGREEMENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Investment Company [Abstract]  
Schedule of Base Management Fees, Income Based Fees, and Capital Gains Incentive Fees
The base management fees, income based fees and capital gains incentive fees for the years ended December 31, 2022, 2021 and 2020 were as follows:

For the Years Ended December 31,
202220212020
Base management fees$305 $253 $217 
Income based fees$252 $225 $184 
Capital gains incentive fees(1)$(101)$161 $(58)
________________________________________

(1)Calculated in accordance with GAAP as discussed below.
v3.22.4
INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments
As of December 31, 2022 and 2021, investments consisted of the following:

 As of December 31,
 20222021
Amortized Cost(1)Fair ValueAmortized Cost(1)Fair Value
First lien senior secured loans(2)$9,684 $9,373 $9,583 $9,459 
Second lien senior secured loans4,218 3,934 4,614 4,524 
Subordinated certificates of the SDLP(3)1,274 1,249 987 987 
Senior subordinated loans1,163 1,079 896 890 
Preferred equity2,095 2,027 1,547 1,561 
Ivy Hill Asset Management, L.P.(4)2,048 2,201 781 936 
Other equity1,561 1,917 1,402 1,652 
Total$22,043 $21,780 $19,810 $20,009 
________________________________________

(1)The amortized cost represents the original cost adjusted for any accretion of discounts, amortization of premiums and PIK interest or dividends.
    
(2)First lien senior secured loans include certain loans that the Company classifies as “unitranche” loans. The total amortized cost and fair value of the loans that the Company classified as “unitranche” loans were $4,983 and $4,841 respectively, as of December 31, 2022, and $5,210 and $5,163, respectively, as of December 31, 2021.

(3)The proceeds from these certificates were applied to co-investments with Varagon and its clients to fund first lien senior secured loans to 22 and 19 different borrowers as of December 31, 2022 and 2021, respectively.

(4)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.
  
The Company uses Global Industry Classification Standards for classifying the industry groupings of its portfolio companies. The industrial and geographic compositions of the Company’s portfolio at fair value as of December 31, 2022 and 2021 were as follows:
 As of December 31,
20222021
Industry
Software & Services21.9 %21.9 %
Diversified Financials(1)13.3 7.5 
Health Care Services10.8 10.8 
Commercial & Professional Services9.5 9.2 
Investment Funds and Vehicles(2)6.0 5.2 
Insurance Services5.2 5.8 
Power Generation4.5 4.5 
Consumer Services4.2 3.9 
Consumer Durables & Apparel3.7 4.4 
Capital Goods3.6 4.8 
Automobiles & Components2.6 4.6 
Media & Entertainment2.1 2.2 
Food & Beverage2.0 2.2 
Energy2.0 1.9 
Pharmaceuticals, Biotechnology & Life Sciences1.7 1.9 
Other6.9 9.2 
Total100.0 %100.0 %
________________________________________

(1)Includes the Company’s investment in IHAM.

(2)Includes the Company’s investment in the SDLP, which had made first lien senior secured loans to 22 and 19 different borrowers as of December 31, 2022 and 2021, respectively. The portfolio companies in the SDLP are in industries similar to the companies in the Company’s portfolio.

 As of December 31,
20222021
Geographic Region
West(1)24.5 %26.6 %
Midwest23.9 27.9 
Southeast17.1 17.2 
Mid-Atlantic14.9 14.5 
Northeast(2)14.0 9.4 
International5.6 4.4 
Total100.0 %100.0 %
________________________________________

(1)Includes the Company’s investment in the SDLP, which represented 5.7% and 4.9% of the total investment portfolio at fair value as of December 31, 2022 and 2021, respectively.

(2)Includes the Company’s investment in IHAM, which represented 10.1% and 4.7% of the total investment portfolio at fair value as of December 31, 2022 and 2021, respectively.
Below is a summary of the SDLP’s portfolio.
As of December 31,
20222021
Total first lien senior secured loans(1)(2)$5,174 $4,194 
Largest loan to a single borrower(1)$377 $342 
Total of five largest loans to borrowers(1)$1,631 $1,540 
Number of borrowers in the SDLP22 19 
Commitments to fund delayed draw loans(3)$294 $262 
___________________________________________________________________________

(1)At principal amount.

(2)First lien senior secured loans include certain loans that the SDLP classifies as “unitranche” loans. As of December 31, 2022 and 2021, the total principal amount of loans in the SDLP portfolio that the SDLP classified as “unitranche” loans was $4,108 and $2,908, respectively.

(3)As discussed above, these commitments have been approved by the investment committee of the SDLP.

Pursuant to Rule 4-08(g) of Regulation S-X, selected financial information of the SDLP, in conformity with GAAP, as of December 31, 2022 and 2021 and for the years ended December 31, 2022, 2021 and 2020 are presented below:

As of December 31,
20222021
Selected Balance Sheet Information:
Investments at fair value (amortized cost of $5,166 and $4,193, respectively)
$4,958 $4,127 
Other assets150 84 
Total assets$5,108 $4,211 
Senior notes$3,538 $2,939 
Intermediate funding notes132 101 
Other liabilities110 51 
Total liabilities3,780 3,091 
Subordinated certificates and members’ capital1,328 1,120 
Total liabilities and members’ capital$5,108 $4,211 

For the Years Ended December 31,
202220212020
Selected Statement of Operations Information:
Total investment income$365 $282 $302 
Interest expense155 91 113 
Other expenses20 18 16 
Total expenses175 109 129 
Net investment income190 173 173 
Net realized and unrealized gains (losses) on investments(147)70 (64)
Net increase in members’ capital resulting from operations$43 $243 $109 
The amortized cost and fair value of the Company’s investment in IHAM as of December 31, 2022 and 2021 were as follows:
As of December 31,
20222021
Amortized CostFair ValueAmortized CostFair Value
Subordinated debt
$500 $500 $16 $16 
Equity investment
1,548 1,701 765920 
Total Company’s investment in IHAM$2,048 $2,201 $781 $936 
Summary of Funded Capital and Unfunded Capital Commitments of the SDLP Below is a summary of the funded capital and unfunded capital commitments of the SDLP.
 As of December 31,
20222021
Total capital funded to the SDLP(1)$5,127 $4,168 
Total capital funded to the SDLP by the Company(1)$1,274 $987 
Total unfunded capital commitments to the SDLP(2)$294 $262 
Total unfunded capital commitments to the SDLP by the Company(2)$68 $62 
___________________________________________________________________________
(1)At principal amount.
(2)These commitments to fund delayed draw loans have been approved by the investment committee of the SDLP and will be funded if and when conditions to funding such delayed draw loans are met.
Summary of Dividend and Interest Income The interest income from the Company’s investment in the SDLP Certificates and capital structuring service and other fees earned for the years ended December 31, 2022, 2021 and 2020 were as follows:
For the Years Ended December 31,
202220212020
Interest income
$146 $138 $127 
Capital structuring service and other fees
$22 $22 $23 
The interest income and dividend income that the Company earned from IHAM for the years ended December 31, 2022, 2021 and 2020 were as follows:

For the Years Ended December 31,
202220212020
Interest income
$23 $3 $6 
Dividend income
$205 $93 $74 
Summary of Selected Financial Information
Pursuant to Rule 4-08(g) of Regulation S-X, selected financial information of IHAM, in conformity with GAAP, as of December 31, 2022 and 2021 and for the years ended December 31, 2022, 2021 and 2020 are presented below.

In conformity with GAAP, IHAM is required to consolidate entities in which IHAM has a direct or indirect controlling financial interest based on either a variable interest model or voting interest model, which include certain of the IHAM Vehicles (the “Consolidated IHAM Vehicles”). As such, for GAAP purposes only, IHAM consolidates (a) entities in which it holds a
majority voting interest or has majority ownership and control over the operational, financial and investing decisions of that entity and (b) entities that it concludes are variable interest entities in which IHAM has more than insignificant economic interest and power to direct the activities that most significantly impact the entities, and for which IHAM is deemed to be the primary beneficiary.

When IHAM consolidates an IHAM Vehicle for GAAP purposes only, IHAM reflects the assets, liabilities, revenues and expenses of the Consolidated IHAM Vehicles on a gross basis, including the economic interests held by third-party investors in the Consolidated IHAM Vehicles as debt obligations, subordinated notes or non-controlling interests, in the consolidated IHAM financials below. All of the revenues earned by IHAM as the investment manager of the IHAM Consolidated Vehicles are eliminated in GAAP consolidation. However, because the eliminated amounts are earned from and funded by third-party investors, the GAAP consolidation of an IHAM Vehicle does not impact the net income or loss attributable to IHAM. As a result, the Company believes an assessment of IHAM's business and the impact to the Company’s investment in IHAM is best viewed on a stand-alone basis as reflected in the first column in the tables below.

As of December 31, 2022
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Balance Sheet Information:
Assets
Investments at fair value(2)$2,340 $8,973 $(2,315)$8,998 
Cash and cash equivalents5 499 — 504 
Other assets55 94 (51)98 
Total assets$2,400 $9,566 $(2,366)$9,600 
Liabilities
Debt$308 $6,968 $— $7,276 
Subordinated note from ARCC500 — — 500 
Subordinated notes(3)— 1,374 (1,093)281 
Other liabilities17 129 (15)131 
Total liabilities825 8,471 (1,108)8,188 
Equity
Contributed capital1,547 — — 1,547 
Accumulated earnings61 — — 61 
Net unrealized losses on investments and foreign currency transactions(33)— — (33)
Non-controlling interests in Consolidated IHAM Vehicles(4)
— 1,095 (1,258)(163)
Total equity1,575 1,095 (1,258)1,412 
Total liabilities and equity$2,400 $9,566 $(2,366)$9,600 
As of December 31, 2021
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Balance Sheet Information:
Assets
Investments at fair value(2)$966 $5,510 $(927)$5,549 
Cash and cash equivalents8 416 — 424 
Other assets12 79 (8)83 
Total assets$986 $6,005 $(935)$6,056 
Liabilities
Debt$125 $4,656 $— $4,781 
Subordinated note from ARCC16 — — 16 
Subordinated notes(3)— 983 (700)283 
Other liabilities2 98 (9)91 
Total liabilities143 5,737 (709)5,171 
Equity
Contributed capital765 — — 765 
Accumulated earnings78 — — 78 
Net unrealized gains on investments and foreign currency transactions— — — — 
Non-controlling interests in Consolidated IHAM Vehicles(4)
— 268(226)42 
Total equity843 268 (226)885 
Total liabilities and equity$986 $6,005 $(935)$6,056 
________________________________________

(1)Consolidated for GAAP purposes only.

(2)The determination of such fair value is determined in accordance with IHAM’s valuation procedures (separate and apart from the Company’s valuation process described elsewhere herein). The amortized cost of IHAM’s total investments as of December 31, 2022 and 2021 was $2,370 and $966, respectively. The amortized cost of the total investments of IHAM on a consolidated basis as of December 31, 2022 and 2021 was $9,306 and $5,588, respectively.

(3)Subordinated notes generally represent the most junior capital in certain of the Consolidated IHAM Vehicles and effectively represent equity in such vehicles.

(4)Non-controlling interests in Consolidated IHAM Vehicles includes net unrealized depreciation in the Consolidated IHAM Vehicles of $309 and $30 as of December 31, 2022 and 2021, respectively.
For the Year Ended December 31, 2022
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$188 $594 $(185)$597 
Management fees and other income49 7 (46)10 
Total revenues237 601 (231)607 
Expenses
Interest expense35 261 — 296 
Distributions to subordinated notes— 130 (95)35 
Management fees and other expenses14 56 (46)24 
Total expenses49 447 (141)355 
Net operating income188 154 (90)252 
Net realized losses on investments and other transactions— (12)— (12)
Net unrealized losses on investments and other transactions(33)(279)31 (281)
Total net realized and unrealized losses on investments and other transactions(33)(291)31 (293)
Net income (loss)155 (137)(59)(41)
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles— (137)(59)(196)
Net income attributable to Ivy Hill Asset Management, L.P.$155 $— $— $155 

For the Year Ended December 31, 2021
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$97 $285 $(93)$289 
Management fees and other income31 7 (27)11 
Total revenues128 292 (120)300 
Expenses
Interest expense5 99 — 104 
Distributions to subordinated notes— 135 (101)34 
Management fees and other expenses12 38 (27)23 
Total expenses17 272 (128)161 
Net operating income111 20 8 139 
Net realized gains (losses) on investments and other transactions(6)80 (28)46 
Net unrealized gains on investments and other transactions18 91 (15)94 
Total net realized and unrealized gains on investments and other transactions12 171 (43)140 
Net income123 191 (35)279 
Less: Net income attributable to non-controlling interests in Consolidated IHAM Vehicles— 191 (35)156 
Net income attributable to Ivy Hill Asset Management, L.P. $123 $— $— $123 
For the Year Ended December 31, 2020
IHAMConsolidated IHAM Vehicles(1)EliminationsConsolidated
Selected Statement of Operations Information:
Revenues
Investment income$79 $288 $(78)$289 
Management fees and other income28 7 (26)9 
Total revenues107 295 (104)298 
Expenses
Interest expense8 119 — 127 
Distributions to subordinated notes— 113 (79)34 
Management fees and other expenses12 33 (26)19 
Total expenses20 265 (105)180 
Net operating income87 30 1 118 
Net realized gains (losses) on investments and other transactions(4)50 — 46 
Net unrealized losses on investments and other transactions(7)(26)6 (27)
Total net realized and unrealized gains (losses) on investments and other transactions(11)24 6 19 
Net income 76 54 7 137 
Less: Net income attributable to non-controlling interests in Consolidated Funds— 54 7 61 
Net income attributable to Ivy Hill Asset Management, L.P.$76 $— $— $76 
________________________________________

(1)Consolidated for GAAP purposes only.
v3.22.4
DEBT (Tables)
 12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
The Company’s outstanding debt as of December 31, 2022 and 2021 was as follows:

 As of December 31, 
 2022 2021 
Total Aggregate Principal Amount Committed/ Outstanding (1)Principal Amount OutstandingCarrying ValueTotal Aggregate Principal Amount Committed/ Outstanding (1)Principal Amount OutstandingCarrying Value
Revolving Credit Facility$4,843 (2)$2,246 $2,246 $4,232 (2)$1,507 $1,507 
Revolving Funding Facility1,775 800 800 1,525 762 762 
SMBC Funding Facility800 (3)451 451 800 (3)401 401 
BNP Funding Facility300 245 245 300 — — 
2022 Convertible Notes— — — 388 388 388 (4)
2024 Convertible Notes403 403 399 (4)403 403 395 (4)
2023 Notes750 750 750 (5)750 750 748 (5)
2024 Notes900 900 898 (6)900 900 897 (6)
March 2025 Notes600 600 597 (7)600 600 596 (7)
July 2025 Notes1,250 1,250 1,258 (8)1,250 1,250 1,260 (8)
January 2026 Notes1,150 1,150 1,144 (9)1,150 1,150 1,143 (9)
July 2026 Notes1,000 1,000 991 (10)1,000 1,000 988 (10)
2027 Notes500 500 494 (11)— — — 
2028 Notes1,250 1,250 1,247 (12)1,250 1,250 1,246 (12)
2031 Notes700 700 690 (13)700 700 689 (13)
Total$16,221 $12,245 $12,210 $15,248 $11,061 $11,020 

________________________________________

(1)Represents the total aggregate amount committed or outstanding, as applicable, under such instrument. Borrowings under the committed Revolving Credit Facility, Revolving Funding Facility, SMBC Funding Facility and BNP Funding Facility (each as defined below) are subject to borrowing base and other restrictions.

(2)Provides for a feature that allows the Company, under certain circumstances, to increase the size of the Revolving Credit Facility (as defined below) to a maximum of $7,265.

(3)Provides for a feature that allows ACJB (as defined below), under certain circumstances, to increase the size of the SMBC Funding Facility (as defined below) to a maximum of $1,000.

(4)Represents the aggregate principal amount outstanding of the 2024 Convertible Notes (as defined below). As of December 31, 2022, the total unamortized debt issuance costs and the unamortized discount for the 2024 Convertible Notes (as defined below) was $4. As of December 31, 2021, the total unamortized debt issuance costs and the unamortized discount for the 2022 Convertible Notes and the 2024 Convertible Notes (each as defined below) were $0 and $8, respectively. In February 2022, the Company repaid in full the 2022 Convertible Notes upon their maturity.

(5)Represents the aggregate principal amount outstanding of the 2023 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the 2023 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $0 and $2, respectively.

(6)Represents the aggregate principal amount outstanding of the 2024 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2024 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unamortized discount was $2 and $3, respectively.

(7)Represents the aggregate principal amount outstanding of the March 2025 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the March 2025 Notes. As of
December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $3 and $4, respectively.

(8)Represents the aggregate principal amount outstanding of the July 2025 Notes (as defined below), less unamortized debt issuance costs and the net unaccreted premium recorded upon the issuance of the July 2025 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unaccreted premium was $8 and $10, respectively.

(9)Represents the aggregate principal amount outstanding of the January 2026 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the January 2026 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $6 and $7, respectively.

(10)Represents the aggregate principal amount outstanding of the July 2026 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the July 2026 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $9 and $12, respectively.

(11)Represents the aggregate principal amount outstanding of the 2027 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2027 Notes. As of December 31, 2022, the total unamortized debt issuance costs and the net unamortized discount was $6.

(12)Represents the aggregate principal amount outstanding of the 2028 Notes (as defined below), less unamortized debt issuance costs and the net unamortized discount recorded upon the issuance of the 2028 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the net unamortized discount was $3 and $4, respectively.

(13)Represents the aggregate principal amount outstanding of the 2031 Notes (as defined below), less unamortized debt issuance costs and the unamortized discount recorded upon the issuance of the 2031 Notes. As of December 31, 2022 and 2021, the total unamortized debt issuance costs and the unamortized discount was $10 and $11, respectively.
For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the Revolving Credit Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$71 $21 $43 
Credit facility fees10 17 7 
Amortization of debt issuance costs8 7 7 
Total interest and credit facility fees expense$89 $45 $57 
Cash paid for interest expense$62 $20 $41 
Average stated interest rate4.11 %2.14 %2.58 %
Average outstanding balance$1,701 $1,014 $1,576 
For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the Revolving Funding Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$31 $15 $20 
Credit facility fees5 6 5 
Amortization of debt issuance costs3 4 4 
Total interest and credit facility fees expense$39 $25 $29 
Cash paid for interest expense$29 $17 $19 
Average stated interest rate3.81 %2.33 %2.54 %
Average outstanding balance$820 $643 $761 
For the years ended December 31, 2022, 2021 and 2020, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the SMBC Funding Facility were as follows:
 For the Years Ended December 31,
 202220212020
Stated interest expense$15 $4 $10 
Credit facility fees2 6 1 
Amortization of debt issuance costs2 3 3 
Total interest and credit facility fees expense$19 $13 $14 
Cash paid for interest expense$14 $4 $10 
Average stated interest rate3.58 %2.05 %2.36 %
Average outstanding balance$414 $191 $390 
For the years ended December 31, 2022 and 2021, the components of interest and credit facility fees expense, cash paid for interest expense, average stated interest rates (i.e., rate in effect plus the spread) and average outstanding balances for the BNP Funding Facility were as follows:

For the Years Ended December 31,
 20222021
Stated interest expense$5 $1 
Credit facility fees1 4 
Amortization of debt issuance costs1 1 
Total interest and credit facility fees expense$7 $6 
Cash paid for interest expense$3 $1 
Average stated interest rate4.71 %3.46 %
Average outstanding balance$110 $15 
Certain key terms related to the convertible features for the 2024 Convertible Notes as of December 31, 2022 are listed below.
2024 Convertible Notes
Conversion premium15.0 %
Closing stock price at issuance$17.29 
Closing stock price dateMarch 5, 2019
Conversion price (1)$19.68 
Conversion rate (shares per one thousand dollar principal amount)(1)50.8028 
Conversion dateDecember 1, 2023
________________________________________

(1)Represents conversion price and conversion rate, as applicable, as of December 31, 2022, taking into account any applicable de minimis adjustments that will be made on the conversion date.
As of December 31, 2022, the components of the carrying value of the 2024 Convertible Notes, the stated interest rate and the effective interest rate were as follows:
2024 Convertible Notes
Principal amount of debt$403 
Original issue discount, net of accretion(1)
Debt issuance costs, net of amortization(3)
Carrying value of debt$399 
Stated interest rate4.625 %
Effective interest rate(1)5.10 %
________________________________________
(1)The effective interest rate of the 2024 Convertible Notes is equal to the stated interest rate plus the accretion of original issue discount and amortization of debt issuance costs.
For the years ended December 31, 2022, 2021 and 2020, the components of interest expense and cash paid for interest expense for the 2024 Convertible Notes, as well as any other convertible notes outstanding during the periods presented were as follows.
 For the Years Ended December 31,
 202220212020
Stated interest expense$20 $33 $33 
Amortization of debt issuance costs1 3 3 
Accretion of original issue discount2 6 5 
Total interest expense$23 $42 $41 
Cash paid for interest expense$26 $34 $33 
Certain key terms related to the features for the Unsecured Notes as of December 31, 2022 are listed below.

Unsecured Notes		Aggregate Principal Amount IssuedInterest RateOriginal Issuance DateMaturity Date
2023 Notes$750 3.500%August 10, 2017February 10, 2023
2024 Notes$900 4.200%June 10, 2019June 10, 2024
March 2025 Notes$600 4.250%January 11, 2018March 1, 2025
July 2025 Notes$1,250 3.250%January 15, 2020July 15, 2025
January 2026 Notes$1,150 3.875%July 15, 2020January 15, 2026
July 2026 Notes$1,000 2.150%January 13, 2021July 15, 2026
2027 Notes $500 2.875%January 13, 2022June 15, 2027
2028 Notes$1,250 2.875%June 10, 2021June 15, 2028
2031 Notes$700 3.200%November 4, 2021November 15, 2031

For the years ended December 31, 2022, 2021 and 2020, the components of interest expense and cash paid for interest expense for the Unsecured Notes, as well as any other unsecured notes outstanding during the periods presented are listed below.
 For the Years Ended December 31,
 202220212020
Stated interest expense$269 $234 $168 
Amortization of debt issuance costs15 11 6 
Net (amortization) accretion of original issue premium/discount(6)(4)1 
Accretion of purchase discount— — 1 
Total interest expense$278 $241 $176 
Cash paid for interest expense$268 $234 $140 
v3.22.4
DERIVATIVE INSTRUMENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments
Certain information related to the Company’s derivative instruments as of December 31, 2022 and 2021 is presented below.
    
 As of December 31, 2022
Derivative InstrumentNotional
Amount		Maturity DateGross Amount of Recognized AssetsGross Amount of Recognized LiabilitiesBalance Sheet
Location of Net Amounts
 Foreign currency forward contract CAD264 1/27/2023$195 $(196) Accounts payable and other liabilities
 Foreign currency forward contract CAD242 1/18/2023178 (179) Accounts payable and other liabilities
 Foreign currency forward contract €158 1/27/2023159 (169) Accounts payable and other liabilities
 Foreign currency forward contract £125 1/27/2023145 (151) Accounts payable and other liabilities
 Foreign currency forward contract NZD59 1/27/202334 (37) Accounts payable and other liabilities
 Foreign currency forward contract  CAD 17 1/27/202312 (12)Accounts payable and other liabilities
Total$723 $(744)
 As of December 31, 2021
Derivative InstrumentNotional
Amount		Maturity DateGross Amount of Recognized AssetsGross Amount of Recognized LiabilitiesBalance Sheet
Location of Net Amounts
Foreign currency forward contractCAD309 1/28/2022$240 $(245)Accounts payable and other liabilities
Foreign currency forward contractCAD209 1/19/2022163 (165)Accounts payable and other liabilities
Foreign currency forward contract€153 1/28/2022172 (174)Accounts payable and other liabilities
Foreign currency forward contract£95 1/28/2022126 (129)Accounts payable and other liabilities
Foreign currency forward contractCAD2 1/28/20221 (1)Accounts payable and other liabilities
Total$702 $(714)
Schedule of Net Realized and Unrealized Gains (Losses) on Derivative Instruments
Net realized gains (losses) on derivative instruments recognized by the Company for the years ended December 31, 2022, 2021 and 2020 is in the following location in the consolidated statements of operations:

For the Years Ended December 31,
Derivative InstrumentStatement Location202220212020
Interest rate swapNet realized gains (losses) from foreign currency and other transactions$— $— $(6)
Foreign currency forward contractNet realized gains (losses) from foreign currency and other transactions62 13 (9)
Total$62 $13 $(15)

Net unrealized gains (losses) on derivative instruments recognized by the Company for the years ended December 31, 2022, 2021 and 2020 is in the following location in the consolidated statements of operations:

For the Years Ended December 31,
Derivative InstrumentStatement Location202220212020
Interest rate swapNet unrealized gains (losses) from foreign currency and other transactions$— $— $1 
Foreign currency forward contractNet unrealized gains (losses) from foreign currency and other transactions(9)(14)(1)
Total$(9)$(14)$— 
v3.22.4
COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Loan and Private Equity Commitments As of December 31, 2022 and 2021, the Company had the following commitments to fund various revolving and delayed draw senior secured and subordinated loans, including commitments to fund which are at (or substantially at) the Company’s discretion:
 As of December 31,
 20222021
Total revolving and delayed draw loan commitments $2,916 $2,733 
Less: funded commitments(526)(352)
Total unfunded commitments2,390 2,381 
Less: commitments substantially at discretion of the Company— — 
Less: unavailable commitments due to borrowing base or other covenant restrictions(13)(4)
Total net adjusted unfunded revolving and delayed draw loan commitments$2,377 $2,377 
As of December 31, 2022 and 2021, the Company was party to subscription agreements to fund equity investments in private equity investment partnerships as follows:
 As of December 31,
 20222021
Total private equity commitments$120 $111 
Less: funded private equity commitments(69)(68)
Total unfunded private equity commitments51 43 
Less: private equity commitments substantially at discretion of the Company(51)(43)
Total net adjusted unfunded private equity commitments$— $— 
Schedule of Components of Operating Lease Expense and Supplemental Cash Flow Information The components of operating lease expense for the years ended December 31, 2022, 2021 and 2020 were as follows:
For the Years Ended December 31,
202220212020
Operating lease costs$9 $10 $17 
Less: sublease income(9)(9)(16)
Total operating lease costs (1)$— $1 $1 

________________________________________

(1)Total operating lease costs are incurred from office leases assumed as part of the Company’s acquisition of American Capital, Ltd.
Supplemental cash flow information related to operating leases for the years ended December 31, 2022 and 2021 were as follows:
For the Years Ended December 31,
20222021
Cash paid for amounts included in the measurement of operating lease liabilities$16 $16 
Operating ROU assets obtained in exchange for operating lease liabilities$9 $11 
Summary of Supplemental Balance Sheet Information
Supplemental balance sheet information as of December 31, 2022 and 2021 related to operating leases were as follows:
As of December 31,
20222021
Operating lease ROU assets$20 $27 
Operating lease liabilities$31 $43 
Weighted average remaining lease term3.1 years3.7 years
Weighted average discount rate4.2 %3.1%
Schedule of Future Minimum Lease Payments Under Operating Leases
The following table shows future minimum lease payments under the Company’s operating leases and a reconciliation to the operating lease liability as of December 31, 2022:

Amount
2023$16 
20246 
20256 
20266 
  Total lease payments34 
Less imputed interest(3)
  Total operating lease liabilities$31 
Schedule of Future Rental Payments to be Received
The following table shows future expected rental payments to be received under the Company’s subleases where the Company is the sublessor as of December 31, 2022:

Amount
2023$9 
20244 
20254 
20264 
Total$21 
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Measurement Inputs and Valuation Techniques
The following tables summarize the significant unobservable inputs the Company used to value the majority of its investments categorized within Level 3 as of December 31, 2022 and 2021. The tables are not intended to be all-inclusive, but instead capture the significant unobservable inputs relevant to the Company’s determination of fair values.

 As of December 31, 2022 
Unobservable Input
Asset CategoryFair ValuePrimary Valuation TechniquesInputEstimated Range
Weighted Average(1)
First lien senior secured loans$9,165 Yield analysisMarket yield
7.6% - 26.1%
12.3%
Second lien senior secured loans3,841 Yield analysisMarket yield
11.0% - 32.4%
14.9%
Subordinated certificates of the SDLP1,249 Discounted cash flow analysisDiscount rate
12.4% - 14.8%
13.5%
Senior subordinated loans1,021 Yield analysisMarket yield
8.0% - 16.3%
12.9%
Preferred equity2,023 EV market multiple analysisEBITDA multiple
2.6x - 40.6x
15.7x
Ivy Hill Asset Management, L.P.(2)2,201 Discounted cash flow analysisDiscount rate
12.9% - 25.7%
14.2%
Other equity1,861 EV market multiple analysisEBITDA multiple
2.1x - 52.1x
15.6x
Total investments$21,361 
________________________________________

(1)Unobservable inputs were weighted by the relative fair value of the investments.

(2)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.

 As of December 31, 2021 
Unobservable Input
Asset CategoryFair ValuePrimary Valuation TechniquesInputEstimated Range
Weighted Average(1)
First lien senior secured loans$9,456 Yield analysisMarket yield
2.0% - 16.5%
7.6%
Second lien senior secured loans4,432 Yield analysisMarket yield
6.8% - 22.9%
9.5%
Subordinated certificates of the SDLP987 Discounted cash flow analysisDiscount rate
8.8% - 9.7%
9.3%
Senior subordinated loans889 Yield analysisMarket yield
7.1% - 27.8%
11.5%
Preferred equity1,561 EV market multiple analysisEBITDA multiple
3.2x - 64.4x
16.5x
Ivy Hill Asset Management, L.P.(2)936 Discounted cash flow analysisDiscount rate
9.9% - 27.9%
16.3%
Other equity1,647 EV market multiple analysisEBITDA multiple
4.9x - 32.1x
14.9x
Total investments$19,908 
________________________________________

(1)Unobservable inputs were weighted by the relative fair value of the investments.

(2)Includes the Company’s equity and subordinated loan investments in IHAM, as applicable.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following table presents fair value measurements of cash and cash equivalents, restricted cash, investments, derivatives and unfunded revolving and delayed draw loan commitments as of December 31, 2022:

 Fair Value Measurements Using
TotalLevel 1Level 2Level 3
Cash and cash equivalents$303 $303 $— $— 
Restricted cash$34 $34 $— $— 
Investments not measured at net asset value$21,775 $54 $360 $21,361 
Investments measured at net asset value(1)5 
 Total investments$21,780 
Derivatives$(21)$— $(21)$— 
Unfunded revolving and delayed draw loan commitments(2)$(57)$— $— $(57)
________________________________________

(1)Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet.

(2)The fair value of unfunded revolving and delayed draw loan commitments is included in “accounts payable and other liabilities” in the accompanying consolidated balance sheet.

The following table presents fair value measurements of cash and cash equivalents, restricted cash, investments, derivatives and unfunded revolving and delayed draw loan commitments as of December 31, 2021:

 Fair Value Measurements Using
TotalLevel 1Level 2Level 3
Cash and cash equivalents$372 $372 $— $— 
Restricted cash$114 $114 $— $— 
Investments not measured at net asset value$20,004 $— $96 $19,908 
Investments measured at net asset value (1)5 
  Total investments$20,009 
Derivatives$(12)$— $(12)$— 
Unfunded revolving and delayed draw loan commitments(2)$(20)$— $— $(20)
________________________________________

(1)Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheet.
(2)The fair value of unfunded revolving and delayed draw loan commitments is included in “accounts payable and other liabilities” in the accompanying consolidated balance sheet.
Schedule of Changes in Investments that use Level 3 Inputs The following table presents changes in investments that use Level 3 inputs as of and for the year ended December 31, 2022:
 As of and For the Year Ended December 31, 2022
Balance as of December 31, 2021$19,908 
Net realized gains24 
Net unrealized losses(461)
Purchases9,341 
Sales(4,685)
Repayments(3,009)
PIK interest and dividends312 
Net accretion of discount on securities12 
Net transfers in and/or out of Level 3(81)
Balance as of December 31, 2022$21,361 
The following table presents changes in investments that use Level 3 inputs as of and for the year ended December 31, 2021:
As of and For the Year Ended December 31, 2021
Balance as of December 31, 2020$15,506 
Net realized gains258 
Net unrealized gains597 
Purchases13,704 
Sales(5,573)
Repayments(4,894)
PIK interest and dividends250 
Net accretion of discount on securities16 
Net transfers in and/or out of Level 344 
Balance as of December 31, 2021$19,908 
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments
The following are the carrying and fair values of the Company’s debt obligations as of December 31, 2022 and 2021. Fair value is estimated by discounting remaining payments using applicable current market rates, which take into account changes in the Company’s marketplace credit ratings, or market quotes, if available.

 As of December 31,
 20222021
Carrying value(1)Fair value(4)Carrying value(1)Fair value(4)
Revolving Credit Facility$2,246 $2,246 $1,507 $1,507 
Revolving Funding Facility800 800 762 762 
SMBC Funding Facility451 451 401 401 
BNP Funding Facility245 245 — — 
2022 Convertible Notes (principal amount outstanding of $0 and $388, respectively)
— — 388 (2)433 
2024 Convertible Notes (principal amount outstanding of $403)
399 (2)428 395 (2)457 
2023 Notes (principal amount outstanding of $750)
750 (2)749 748 (2)768 
2024 Notes (principal amount outstanding of $900)
898 (2)873 897 (2)952 
March 2025 Notes (principal amount outstanding of $600)
597 (2)570 596 (2)637 
July 2025 Notes (principal amount outstanding of $1,250)
1,258 (2)1,157 1,260 (2)1,297 
January 2026 Notes (principal amount outstanding of $1,150)
1,144 (2)1,059 1,143 (2)1,213 
July 2026 Notes (principal amount outstanding of $1,000)
991 (2)850 988 (2)989 
2027 Notes (principal amount outstanding of $500 and $0, respectively)
494 (2)427 — (2)— 
2028 Notes (principal amount outstanding of $1,250)
1,247 (2)1,007 1,246 (2)1,248 
2031 Notes (principal amount outstanding of $700)
690 (2)516 689 (2)687 
Total$12,210 (3)$11,378 $11,020 (3)$11,351 
________________________________________

(1)The Revolving Credit Facility, the Revolving Funding Facility, the SMBC Funding Facility and the BNP Funding Facility carrying values are the same as the principal amounts outstanding.

(2)Represents the aggregate principal amount outstanding, less unamortized debt issuance costs and the net unaccreted/amortized discount or premium recorded upon issuance.

(3)Total principal amount of debt outstanding totaled $12,245 and $11,061 as of December 31, 2022 and 2021, respectively.

(4)The fair value of these debt obligations would be categorized as Level 2 under ASC 820-10.
v3.22.4
STOCKHOLDERS’ EQUITY (Tables)
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Schedule of Common Shares Issued and Sold In connection with the issuance of its common stock, the Company issued and sold the following shares of common stock during the year ended December 31, 2022:

Issuances of Common Stock		Number of Shares IssuedGross ProceedsUnderwriting Fees/Offering ExpensesNet ProceedsAverage Offering Price Per Share(1)
Public offerings29.6$613.5 $29.2 $584.3 $19.74 (2)
“At the market” offerings20.6421.8 4.8 417.0 $20.52 
Total50.2$1,035.3 $34.0 $1,001.3 
________________________________________

(1)    Represents the gross offering price per share before deducting underwriting discounts and commissions and offering expenses.

(2)    11.2, 9.2 and 9.2 of the shares were sold to the underwriters for a price of $21.06 per share, $19.00 per share and $18.87 per share, respectively, which the underwriters were then permitted to sell at variable prices to the public. See Note 15 for a subsequent event relating to the Company’s public equity offerings.
v3.22.4
EARNINGS PER SHARE (Tables)
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Schedule of Computations of Basic and Diluted Net Increase in Stockholders' Equity
The following information sets forth the computations of basic and diluted net increase in stockholders’ equity resulting from operations per share for the years ended December 31, 2022, 2021 and 2020:

 For the Years Ended December 31,
 202220212020
Net increase in stockholders’ equity resulting from operations—basic$600 $1,567 $484 
Adjustment for interest expense on 2024 Convertible Notes(1)17 — — 
Net increase in stockholders’ equity resulting from operations—diluted$617 $1,567 $484 
Weighted average shares of common stock outstanding—basic498 446 424 
Assumed conversion of 2024 Convertible Notes20 — — 
Weighted average shares of common stock outstanding—diluted518 446 424 
Net increase in stockholders’ equity resulting from operations per share—basic$1.21 $3.51 $1.14 
Net increase in stockholders’ equity resulting from operations per share—diluted$1.19 $3.51 $1.14 
________________________________________
(1)    Includes the impact of income based fees.
v3.22.4
INCOME AND EXCISE TAXES (Tables)
 12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Dividends Paid per Common Share Dividends paid per common share for the years ended December 31, 2022, 2021 and 2020 were taxable as follows (unaudited):
 For the Years Ended December 31,
 202220212020
Ordinary income(1)$1.80 $1.62 $1.60 
Capital gains0.07 — — 
Total(2)$1.87 $1.62 $1.60 
_______________________________________________________________________________

(1)For the years ended December 31, 2022, 2021 and 2020, ordinary income included dividend income of approximately $0.0582, $0.0461 and $0.0157 per share, respectively, that qualified to be taxed at the maximum capital gains rate and, in the case of certain eligible corporate shareholders, dividends that were eligible for the dividends received deduction.
(2)For the years ended December 31, 2022, 2021 and 2020, the percentage of total dividends paid that constituted interest-related dividends were 76.6%, 84.6% and 88.4%, respectively.
Schedules of Income Taxes
The following reconciles net increase in stockholders’ equity resulting from operations to taxable income for the years ended December 31, 2022, 2021 and 2020:

 For the Years Ended December 31,
 202220212020
 (Estimated)(1)
Net increase in stockholders’ equity resulting from operations$600 $1,567 $484 
Adjustments:
Net unrealized losses (gains) on investments, foreign currency and other transactions525 (586)144 
Income not currently taxable(2)(232)(223)(147)
Income for tax but not book90 162 133 
Expenses not currently deductible56 165 19 
Expenses for tax but not book— — (59)
Realized gain/loss differences(3)(101)(199)149 
Taxable income$938 $886 $723 
_______________________________________________________________________________

(1)The calculation of estimated 2022 U.S. federal taxable income is based on certain estimated amounts, including information received from third parties and, as a result, actual 2022 U.S. federal taxable income will not be finally determined until the Company’s 2022 U.S. federal tax return is filed in 2023 (and, therefore, such estimate is subject to change).

(2)Includes a reduction for dividend income from preferred equity that is not taxable until collected totaling $175, $91 and $67, respectively, net of dividend income collected of $71, $122 and $1, respectively, for the years ended December 31, 2022, 2021 and 2020, respectively.
(3)Certain realized gain/loss differences are the result of the realization of certain tax only capital losses on the investments and liabilities acquired in the acquisition of Allied Capital Corporation in April 2010 (the “Allied Acquisition”). Because the Allied Acquisition was a “tax-free” reorganization under the Code, realized losses for tax purposes can differ from GAAP. Note that unlike the Allied Acquisition, the American Capital Acquisition was treated as a taxable purchase of the American Capital assets for purposes of the Company’s taxable income calculations; therefore, realized gains or losses for tax purposes are generally consistent with realized gains or losses under GAAP.
v3.22.4
DIVIDENDS AND DISTRIBUTIONS (Tables)
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Schedule of Dividends Declared and Payable
The following table summarizes the Company’s dividends declared and payable during the years ended December 31, 2022, 2021 and 2020:

Date declaredRecord datePayment datePer share
amount		Total amount
October 25, 2022December 15, 2022December 29, 2022$0.48 $249 
February 9, 2022December 15, 2022December 29, 20220.03 (1)15 
July 26, 2022September 15, 2022September 30, 20220.43 219 
February 9, 2022September 15, 2022September 30, 20220.03 (1)15 
April 26, 2022June 15, 2022June 30, 20220.42 208 
February 9, 2022June 15, 2022June 30, 20220.03 (1)15 
February 9, 2022March 15, 2022March 31, 20220.42 205 
February 9, 2022March 15, 2022March 31, 20220.03 (1)15 
Total dividends declared and payable for the year ended December 31, 2022
$1.87 $941 
October 26, 2021December 15, 2021December 30, 2021$0.41 $191 
July 28, 2021September 15, 2021September 30, 20210.41 189 
April 28, 2021June 15, 2021June 30, 20210.40 177 
February 10, 2021March 15, 2021March 31, 20210.40 175 
Total dividends declared and payable for the year ended December 31, 2021
$1.62 $732 
October 27, 2020December 15, 2020December 30, 2020$0.40 $169 
August 4, 2020September 15, 2020September 30, 20200.40 169 
May 5, 2020June 15, 2020June 30, 20200.40 169 
February 12, 2020March 16, 2020March 31, 20200.40 172 
Total dividends declared and payable for the year ended December 31, 2020$1.60 $679 
___________________________________________________________________________
(1)Represents an additional dividend.
Schedule of Dividend Reinvestment Plan Activity Dividend reinvestment plan activity for the years ended December 31, 2022, 2021 and 2020, was as follows:
For the Years Ended December 31,
202220212020
Shares issued1.5 1.9 — 
Average issue price per share$19.58 $19.86 $— 
Shares purchased by plan agent to satisfy dividends declared and payable during the period for stockholders 1.6 (1)— 2.6 (2)
Average purchase price per share$17.85 $— $13.76 
___________________________________________________________________________

(1)Shares were purchased in July 2022 and October 2022.

(2)Shares were purchased in April 2020, July 2020, October 2020 and January 2021.
v3.22.4
FINANCIAL HIGHLIGHTS (Tables)
 12 Months Ended
Dec. 31, 2022
Investment Company [Abstract]  
Schedule of Financial Highlights
The following is a schedule of financial highlights as of and for the years ended December 31, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 and 2013:

 As of and For the Years Ended December 31,
Per Share Data:20222021202020192018
Net asset value, beginning of period(1)$18.96 $16.97 $17.32 $17.12 $16.65 
Issuances of common stock0.10 0.11 — 0.02 — 
Repurchases of common stock— — 0.11 — — 
Net investment income for period(2)2.19 1.66 1.87 1.90 1.63 
Net realized and unrealized gains (losses) for period(2)(0.98)1.84 (0.73)(0.04)0.38 
Net increase in stockholders’ equity1.31 3.61 1.25 1.88 2.01 
Total distributions to stockholders(3)(1.87)(1.62)(1.60)(1.68)(1.54)
Net asset value at end of period(1)$18.40 $18.96 $16.97 $17.32 $17.12 
Per share market value at end of period$18.47 $21.19 $16.89 $18.65 $15.58 
Total return based on market value(4)(3.83)%36.18 %(0.86)%30.49 %8.91 %
Total return based on net asset value(5)7.13 %21.97 %5.20 %12.14 %12.10 %
Shares outstanding at end of period519 468 423 431 426 
Ratio/Supplemental Data: 
Net assets at end of period$9,555 $8,868 $7,176 $7,467 $7,300 
Ratio of operating expenses to average net assets(6)(7)10.19 %13.05 %10.27 %9.92 %8.63 %
Ratio of net investment income to average net assets(6)(8)11.73 %9.19 %11.39 %11.01 %9.60 %
Portfolio turnover rate(6)37 %60 %40 %38 %54 %
 As of and For the Years Ended December 31,
Per Share Data:20172016201520142013
Net asset value, beginning of period(1)$16.45 $16.46 $16.82 $16.46 $16.04 
Issuances of common stock(0.01)— 0.01 — 0.16 
Repurchases of common stock— — (0.01)— — 
Deemed contribution from Ares Capital Management0.13 — — — — 
Issuances of convertible notes0.04 — — — — 
Net investment income for period(2)1.20 1.57 1.62 1.43 1.61 
Net realized and unrealized gains (losses) for period(2)0.36 (0.06)(0.41)0.50 0.22 
Net increase in stockholders’ equity1.72 1.51 1.21 1.93 1.99 
Total distributions to stockholders(3)(1.52)(1.52)(1.57)(1.57)(1.57)
Net asset value at end of period(1)$16.65 $16.45 $16.46 $16.82 $16.46 
Per share market value at end of period$15.72 $16.49 $14.25 $15.61 $17.77 
Total return based on market value(4)4.55 %26.39 %1.35 %(3.32)%10.51 %
Total return based on net asset value(5)10.53 %9.15 %7.16 %11.79 %11.41 %
Shares outstanding at end of period426 314 314 314 298 
Ratio/Supplemental Data: 
Net assets at end of period$7,098 $5,165 $5,173 $5,284 $4,904 
Ratio of operating expenses to average net assets(6)(7)9.45 %9.59 %9.51 %10.46 %10.03 %
Ratio of net investment income to average net assets(6)(8)7.65 %9.58 %9.75 %8.71 %9.86 %
Portfolio turnover rate(6)51 %39 %42 %39 %27 %
_____________________________________________________________________

(1)The net assets used equals the total stockholders’ equity on the consolidated balance sheet.
(2)Weighted average basic per share data.

(3)Includes additional dividend of (a) $0.12 per share for the year ended December 31, 2022, (b) $0.08 per share for the year ended December 31, 2019, (c) $0.05 per share for the year ended December 31, 2015, (d) $0.05 per
share for the year ended December 31, 2014 and (e) $0.05 per share for the year ended December 31, 2013.

(4)For the year ended December 31, 2022, the total return based on market value equaled the decrease of the ending market value at December 31, 2022 of $18.47 per share from the ending market value at December 31, 2021 of $21.19 per share plus the declared and payable dividends of $1.87 per share for the year ended December 31, 2022, divided by the market value at December 31, 2021. For the year ended December 31, 2021, the total return based on market value equaled the increase of the ending market value at December 31, 2021 of $21.19 per share from the ending market value at December 31, 2020 of $16.89 per share plus the declared and payable dividends of $1.62 per share for the year ended December 31, 2021, divided by the market value at December 31, 2020. For the year ended December 31, 2020, the total return based on market value equaled the decrease of the ending market value at December 31, 2020 of $16.89 per share from the ending market value at December 31, 2019 of $18.65 per share plus the declared and payable dividends of $1.60 per share for the year ended December 31, 2020, divided by the market value at December 31, 2019. For the year ended December 31, 2019, the total return based on market value equaled the increase of the ending market value at December 31, 2019 of $18.65 per share from the ending market value at December 31, 2018 of $15.58 per share plus the declared and payable dividends of $1.68 per share for the year ended December 31, 2019, divided by the market value at December 31, 2018. For the year ended December 31, 2018, the total return based on market value equaled the decrease of the ending market value at December 31, 2018 of $15.58 per share from the ending market value at December 31, 2017 of $15.72 per share plus the declared and payable dividends of $1.54 per share for the year ended December 31, 2018, divided by the market value at December 31, 2017. For the year ended December 31, 2017, the total return based on market value equaled the decrease of the ending market value at December 31, 2017 of $15.72 per share from the ending market value at December 31, 2016 of $16.49 per share plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2017, divided by the market value at December 31, 2016. For the year ended December 31, 2016, the total return based on market value equaled the increase of the ending market value at December 31, 2016 of $16.49 per share from the ending market value at December 31, 2015 of $14.25 per share plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2016, divided by the market value at December 31, 2015. For the year ended December 31, 2015, the total return based on market value equaled the decrease of the ending market value at December 31, 2015 of $14.25 per share from the ending market value at December 31, 2014 of $15.61 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2015, divided by the market value at December 31, 2014. For the year ended December 31, 2014, the total return based on market value equaled the decrease of the ending market value at December 31, 2014 of $15.61 per share from the ending market value at December 31, 2013 of $17.77 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2014, divided by the market value at December 31, 2013. For the year ended December 31, 2013, the total return based on market value equaled the increase of the ending market value at December 31, 2013 of $17.77 per share from the ending market value at December 31, 2012 of $17.50 per share plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2013, divided by the market value at December 31, 2012. The Company’s performance changes over time and currently may be different than that shown. Past performance is no guarantee of future results.

(5)For the year ended December 31, 2022, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.87 per share for the year ended December 31, 2022, divided by the beginning net asset value for the period. For the year ended December 31, 2021, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.62 per share for the year ended December 31, 2021, divided by the beginning net asset value for the period. For the year ended December 31, 2020, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of$1.60 per share for the year ended December 31, 2020, divided by the beginning net asset value for the period. For the year ended December 31, 2019, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.68 per share for the year ended December 31, 2019, divided by the beginning net asset value for the period. For the year ended December 31, 2018, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.54 per share for the year ended December 31, 2018, divided by the beginning net asset value for the period. For the year ended December 31, 2017, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2017, divided by the beginning net asset value for the period. These calculations are adjusted for shares issued in connection with the dividend reinvestment plan, the issuance of common
stock in connection with any equity offerings and the equity components of any convertible notes issued during the period. For the year ended December 31, 2016, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.52 per share for the year ended December 31, 2016, divided by the beginning net asset value for the period. For the year ended December 31, 2015, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2015, divided by the beginning net asset value for the period. For the year ended December 31, 2014, the total return based on net asset value equaled the change in net asset
value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2014, divided by the beginning net asset value for the period. For the year ended December 31, 2013, the total return based on net asset value equaled the change in net asset value during the period plus the declared and payable dividends of $1.57 per share for the year ended December 31, 2013, divided by the beginning net asset value for the period. The Company’s performance changes over time and currently may be different than that shown. Past performance is no guarantee of future results.

(6)The ratios reflect an annualized amount.

(7)For the years ended December 31, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 and 2013 the ratio of operating expenses to average net assets consisted of the following:
 For the Years Ended December 31,
20222021202020192018
Base management fees3.27 %3.14 %3.10 %2.78 %2.49 %
Income based fees and capital gains incentive fees, net of the fee waiver1.61 %4.80 %1.80 %2.23 %2.24 %
Income based fees and capital gains incentive fees excluding the fee waiver1.61 %4.80 %1.80 %2.64 %2.79 %
Cost of borrowing4.89 %4.61 %4.54 %3.94 %3.33 %
Other operating expenses0.42 %0.50 %0.83 %0.97 %0.57 %
 For the Years Ended December 31,
20172016201520142013
Base management fees2.57 %2.64 %2.55 %2.51 %2.40 %
Income based fees and capital gains incentive fees, net of the fee waiver2.18 %2.29 %2.31 %2.90 %2.80 %
Income based fees and capital gains incentive fees excluding the fee waiver2.32 %2.29 %2.31 %2.90 %2.80 %
Cost of borrowing3.37 %3.58 %4.32 %4.24 %3.94 %
Other operating expenses1.33 %1.08 %0.33 %0.81 %0.89 %

(8)The ratio of net investment income to average net assets excludes income taxes related to realized gains and losses.
v3.22.4
SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Change in Accounting Estimate [Line Items]                      
Cash denominated in foreign currencies $ 12   $ 62                
Total stockholders’ equity $ 9,555   8,868 $ 7,176 $ 7,467 $ 7,300 $ 7,098 $ 5,165 $ 5,173 $ 5,284 $ 4,904
Cumulative Effect, Period of Adoption, Adjustment                      
Change in Accounting Estimate [Line Items]                      
Total stockholders’ equity     $ (2)                
Accounting Standards Update 2020-06 | Cumulative Effect, Period of Adoption, Adjustment                      
Change in Accounting Estimate [Line Items]                      
Total stockholders’ equity   $ 403                  
Net assets   $ 403                  
Minimum                      
Change in Accounting Estimate [Line Items]                      
Lease term 1 year                    
Maximum                      
Change in Accounting Estimate [Line Items]                      
Lease term 4 years                    
v3.22.4
SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]        
Cash and cash equivalents $ 303 $ 372    
Restricted cash 34 114    
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows $ 337 $ 486 $ 326 $ 176
v3.22.4
AGREEMENTS - Narrative (Details)
$ in Millions
 12 Months Ended 219 Months Ended
Jun. 21, 2019
Jun. 20, 2019
Dec. 31, 2022
USD ($)
qtr
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2022
USD ($)
qtr
Investment Company, Financial Highlights [Line Items]            
Asset coverage requirement applicable to senior securities 150.00% 200.00% 177.00%     177.00%
Number of quarters considered in base management fee calculation | qtr     2     2
Capital gains incentive fees payable     $ 35 $ 161   $ 35
Income based fees payable     81 67   81
Administrative fees     11 15 $ 13  
Accounts payable and other liabilities     $ 167 111   167
Investment Advisory and Management Agreement | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Termination notice period     60 days      
Asset coverage requirement applicable to senior securities 150.00% 200.00%        
Capital gains incentive fees payable     $ 35     35
Payments of capital gains incentive fees           133
Investment Advisory and Management Agreement | Controlled Affiliate | Minimum            
Investment Company, Financial Highlights [Line Items]            
Base management fee rate 1.00% 1.50%        
Debt to equity leverage ratio 100.00%          
Investment Advisory and Management Agreement | Controlled Affiliate | Maximum            
Investment Company, Financial Highlights [Line Items]            
Base management fee rate 1.50%          
Debt to equity leverage ratio 100.00%          
Incentive Rate, Quarterly Hurdle Rate | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee     1.75%      
Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee     100.00%      
Incentive Rate, Quarterly Catch-Up Threshold | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee     2.1875%      
Incentive Rate, Pre-Incentive Fee Net Investment Income Exceeds Catch-Up Threshold | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee     20.00%      
Incentive Rate, Realized Capital Gains | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee 20.00%   20.00%      
Incentive Rate, Net Assets For Deferral Of Cash Payments | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Incentive fee 7.00%          
Capital Gains Incentive Fees | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Due to related party     $ 0 26 $ 0 0
Administration Agreement | Controlled Affiliate            
Investment Company, Financial Highlights [Line Items]            
Termination notice period 60 days          
Accounts payable and other liabilities     $ 2 $ 4   $ 2
v3.22.4
AGREEMENTS - Schedule of Base Management Fees, Income Based Fees, and Capital Gains Incentive Fees (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investment Company [Abstract]      
Base management fees $ 305 $ 253 $ 217
Income based fees 252 225 184
Capital gains incentive fees $ (101) $ 161 $ (58)
v3.22.4
INVESTMENTS - Schedule of Investments (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
borrower
Dec. 31, 2021
USD ($)
borrower
Schedule of Investments [Line Items]    
Amortized Cost $ 22,043.0 $ 19,810.0
Fair Value $ 21,779.8 $ 20,009.5
Loans on non-accrual status, as a percent of total investments at amortized cost 1.70% 0.80%
Loans on non-accrual status, as a percent of total investments at fair value 1.10% 0.50%
Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 100.00% 100.00%
Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 100.00% 100.00%
Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Amortized Cost $ 5,166.0 $ 4,193.0
Fair Value $ 4,958.0 $ 4,127.0
Number of borrowers | borrower 22 19
Ivy Hill Asset Management, L.P.    
Schedule of Investments [Line Items]    
Amortized Cost $ 2,370.0 $ 966.0
Fair Value $ 8,998.0 $ 5,549.0
Number of borrowers | borrower 21  
West | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 24.50% 26.60%
West | Senior Direct Lending Program | Investments, At Fair Value | Customer Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 5.70% 4.90%
West | Ivy Hill Asset Management, L.P. | Investments, At Fair Value | Customer Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 10.10% 4.70%
Midwest | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 23.90% 27.90%
Southeast | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 17.10% 17.20%
Mid-Atlantic | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 14.90% 14.50%
Northeast | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 14.00% 9.40%
International | Investments, At Fair Value | Geographic Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 5.60% 4.40%
Software & Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,950.2 $ 4,308.2
Fair Value $ 4,760.6 $ 4,378.1
Software & Services | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 21.90% 21.90%
Diversified Financials    
Schedule of Investments [Line Items]    
Amortized Cost $ 2,755.3 $ 1,363.8
Fair Value $ 2,890.6 $ 1,505.3
Diversified Financials | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 13.30% 7.50%
Health Care Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 2,525.9 $ 2,133.9
Fair Value $ 2,341.9 $ 2,157.1
Health Care Services | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 10.80% 10.80%
Commercial & Professional Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 2,116.4 $ 1,820.0
Fair Value $ 2,077.1 $ 1,833.4
Commercial & Professional Services | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 9.50% 9.20%
Investment Funds and Vehicles    
Schedule of Investments [Line Items]    
Amortized Cost $ 1,305.8 $ 1,020.0
Fair Value $ 1,296.8 $ 1,032.4
Investment Funds and Vehicles | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 6.00% 5.20%
Insurance Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 1,152.6 $ 1,144.0
Fair Value $ 1,132.8 $ 1,167.3
Insurance Services | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 5.20% 5.80%
Power Generation    
Schedule of Investments [Line Items]    
Amortized Cost $ 942.8 $ 877.8
Fair Value $ 988.3 $ 898.9
Power Generation | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 4.50% 4.50%
Consumer Services | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 4.20% 3.90%
Consumer Durables & Apparel    
Schedule of Investments [Line Items]    
Amortized Cost $ 923.9 $ 918.7
Fair Value $ 814.3 $ 874.4
Consumer Durables & Apparel | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 3.70% 4.40%
Capital Goods    
Schedule of Investments [Line Items]    
Amortized Cost $ 758.3 $ 945.3
Fair Value $ 783.9 $ 957.0
Capital Goods | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 3.60% 4.80%
Automobiles & Components    
Schedule of Investments [Line Items]    
Amortized Cost $ 574.8 $ 933.1
Fair Value $ 562.3 $ 910.5
Automobiles & Components | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 2.60% 4.60%
Media & Entertainment    
Schedule of Investments [Line Items]    
Amortized Cost $ 422.3 $ 434.7
Fair Value $ 452.1 $ 448.2
Media & Entertainment | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 2.10% 2.20%
Food & Beverage    
Schedule of Investments [Line Items]    
Amortized Cost $ 420.4 $ 446.6
Fair Value $ 431.7 $ 445.3
Food & Beverage | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 2.00% 2.20%
Energy    
Schedule of Investments [Line Items]    
Amortized Cost $ 380.6 $ 363.4
Fair Value $ 425.3 $ 372.2
Energy | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 2.00% 1.90%
Pharmaceuticals, Biotechnology & Life Sciences    
Schedule of Investments [Line Items]    
Amortized Cost $ 346.9 $ 394.2
Fair Value $ 367.5 $ 386.8
Pharmaceuticals, Biotechnology & Life Sciences | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 1.70% 1.90%
Other | Investments, At Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Composition, percent of fair value 6.90% 9.20%
First lien senior secured loans    
Schedule of Investments [Line Items]    
Amortized Cost $ 9,684.0 $ 9,583.0
Fair Value 9,373.0 9,459.0
Second lien senior secured loans    
Schedule of Investments [Line Items]    
Amortized Cost 4,218.0 4,614.0
Fair Value 3,934.0 4,524.0
Subordinated certificates of the SDLP    
Schedule of Investments [Line Items]    
Amortized Cost 1,274.0 987.0
Fair Value 1,249.0 987.0
Senior subordinated loans    
Schedule of Investments [Line Items]    
Amortized Cost 1,163.0 896.0
Fair Value 1,079.0 890.0
Preferred equity    
Schedule of Investments [Line Items]    
Amortized Cost 2,095.0 1,547.0
Fair Value 2,027.0 1,561.0
Ivy Hill Asset Management, L.P.    
Schedule of Investments [Line Items]    
Amortized Cost 2,048.0 781.0
Fair Value 2,201.0 936.0
Other equity    
Schedule of Investments [Line Items]    
Amortized Cost 1,561.0 1,402.0
Fair Value 1,917.0 1,652.0
Unitranche loans    
Schedule of Investments [Line Items]    
Amortized Cost 4,983.0 5,210.0
Fair Value $ 4,841.0 $ 5,163.0
v3.22.4
INVESTMENTS - Senior Direct Lending Program (Details)
$ in Millions
Dec. 31, 2022
USD ($)
loan
Dec. 31, 2021
USD ($)
loan
Schedule of Investments [Line Items]    
Amortized Cost $ 22,043.0 $ 19,810.0
Fair Value 21,779.8 20,009.5
Subordinated certificates of the SDLP    
Schedule of Investments [Line Items]    
Amortized Cost 1,274.0 987.0
Fair Value $ 1,249.0 $ 987.0
Yield on investment, at cost 13.50% 13.50%
Yield on investment, at fair value 13.80% 13.50%
Number of loans on non-accrual status | loan 1 0
Subordinated certificates of the SDLP | London Interbank Offered Rate (LIBOR)    
Schedule of Investments [Line Items]    
Interest rate, spread 8.00%  
Subordinated certificates of the SDLP | Ares Capital Corporation    
Schedule of Investments [Line Items]    
Ownership percentage of outstanding SDLP Certificates 87.50% 87.50%
Subordinated certificates of the SDLP | Client of Varagon    
Schedule of Investments [Line Items]    
Ownership percentage of outstanding SDLP Certificates 12.50% 12.50%
Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Amount available for commitment $ 450.0  
Capital available to the SDLP 6,150.0 $ 6,150.0
Amortized Cost 5,166.0 4,193.0
Fair Value 4,958.0 4,127.0
Senior Direct Lending Program | Ares Capital Corporation    
Schedule of Investments [Line Items]    
Capital available to the SDLP $ 1,444.0 $ 1,444.0
v3.22.4
INVESTMENTS - Summary of Funded Capital and Unfunded Capital Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]    
Total unfunded capital commitments $ 57 $ 20
Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Total capital funded 5,127 4,168
Total unfunded capital commitments 294 262
Senior Direct Lending Program | Ares Capital Corporation    
Schedule of Investments [Line Items]    
Total capital funded 1,274 987
Total unfunded capital commitments $ 68 $ 62
v3.22.4
INVESTMENTS - Interest Income and Capital Structuring Service and Other Fees Earned (Details) - Subordinated certificates of the SDLP - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]      
Interest income $ 146 $ 138 $ 127
Capital structuring service fees $ 22 $ 22 $ 23
v3.22.4
INVESTMENTS - Summary of the SDLP Portfolio (Details)
$ in Millions
Dec. 31, 2022
USD ($)
borrower
Dec. 31, 2021
USD ($)
borrower
Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Number of borrowers in the SDLP | borrower 22 19
Senior Direct Lending Program | Unfunded commitments    
Schedule of Investments [Line Items]    
Commitments to fund delayed draw loans   $ 262.0
Senior Direct Lending Program | First lien senior secured loans    
Schedule of Investments [Line Items]    
Total first lien senior secured loans $ 5,174.0 4,194.0
Senior Direct Lending Program | Unitranche loans    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4,108.0 2,908.0
Investment, Identifier [Axis]: 2U, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.6 [1],[2],[3] 55.0 [4],[5],[6]
Investment, Identifier [Axis]: ADF Capital, Inc., ADF Restaurant Group, LLC, and ARG Restaurant Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.3 [2],[7] 111.4 [5],[8]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.8 [1],[2] 9.6 [4],[5]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.3 [1],[2] 2.3 [4],[5]
Investment, Identifier [Axis]: ADG, LLC and RC IV GEDC Investor LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 130.0 [2] 115.3 [4],[5]
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2],[9] 0.9 [4],[5],[10]
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 26.8  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.4  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 45.6  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.3  
Investment, Identifier [Axis]: AI Fire Buyer, Inc. and AI Fire Parent LLC, Second lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.0  
Investment, Identifier [Axis]: APG Intermediate Holdings Corporation and APG Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 13.3 [1],[2] 13.5 [4],[5]
Investment, Identifier [Axis]: API Commercial Inc., API Military Inc., and API Space Intermediate, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[7] 7.3  
Investment, Identifier [Axis]: AQ Sage Buyer, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 1.9  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   8.6
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.9  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.5 [1],[2] 13.3 [4],[5]
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.6 [1],[2] 20.2 [4],[5]
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured loan 5    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: AQ Sunshine, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.4 [1],[2],[11] 0.3 [4],[5],[12]
Investment, Identifier [Axis]: ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   46.3
Investment, Identifier [Axis]: ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   1.2
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 33.0 [1],[2] 33.3 [4]
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.2  
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.7 [1],[2],[11] 8.1 [4],[5],[12]
Investment, Identifier [Axis]: ATI Restoration, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   2.5
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 52.1 [1],[2] 49.5 [4],[5]
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   4.0
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.2  
Investment, Identifier [Axis]: Absolute Dental Group LLC and Absolute Dental Equity, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 61.0 [1],[2],[3] 13.7 [4],[5]
Investment, Identifier [Axis]: Abzena Holdings, Inc. and Astro Group Holdings Ltd., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   30.5
Investment, Identifier [Axis]: Accommodations Plus Technologies LLC and Accommodations Plus Technologies Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.1 [1],[2] 4.1 [4],[5]
Investment, Identifier [Axis]: Acrisure, LLC and Acrisure Finance, Inc., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[9] 0.5  
Investment, Identifier [Axis]: Advarra Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 4.1  
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 36.2 [1],[2] 36.6 [4]
Investment, Identifier [Axis]: Aero Operating LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.1 [1],[2] 1.2 [4],[5]
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   64.0
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 120.6  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 63.3  
Investment, Identifier [Axis]: AffiniPay Midco, LLC and AffiniPay Intermediate Holdings, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 56.8 [1],[2] 27.5 [5]
Investment, Identifier [Axis]: Aimbridge Acquisition Co., Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.5 [2] 22.5 [5]
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.5 [2] 29.2
Investment, Identifier [Axis]: Alcami Corporation and ACM Holdings I, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 19.5 [2] 77.5 [5]
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 60.6 [1],[2] 96.6 [4],[5]
Investment, Identifier [Axis]: Alteon Health, LLC. First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   2.8
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.6  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 0.3  
Investment, Identifier [Axis]: American Residential Services L.L.C. and Aragorn Parent Holdings LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 56.4 [1],[2] 56.4 [4],[5]
Investment, Identifier [Axis]: Amryt Pharmaceuticals, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 12.7  
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.6 [2] 1.0 [5]
Investment, Identifier [Axis]: Amynta Agency Borrower Inc. and Amynta Warranty Borrower Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 2.3  
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.8  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans   4.7
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 4.4  
Investment, Identifier [Axis]: Anaqua Parent Holdings, Inc. & Astorg VII Co-Invest Anaqua, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2] 16.0 [4],[5]
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.8  
Investment, Identifier [Axis]: Applied Technical Services, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 1.1  
Investment, Identifier [Axis]: Appriss Health, LLC and Appriss Health Intermediate Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.7 [1],[2] 13.4 [4],[5]
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 15.1 [1],[2] 62.2 [4]
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.5 [1],[2] 1.7 [4],[5]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 90.0 [1],[2],[3] 69.5 [4],[5],[6]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 66.8 [1],[2],[3] 14.5 [4],[5],[6]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 75.0 [1],[2],[3] 7.5 [4],[5],[6]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.0 [1],[2],[3] 111.2 [4],[5],[6]
Investment, Identifier [Axis]: Ardonagh Midco 2 plc and Ardonagh Midco 3 plc, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.4 [2],[3],[11] 1.3 [5],[6],[10]
Investment, Identifier [Axis]: Ares IIIR/IVR CLO Ltd., Subordinated notes    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [6]   20.0
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 20.9  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC and Amberstone Security Group Limited, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 5.9  
Investment, Identifier [Axis]: Argenbright Holdings V, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   21.1
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2],[11] 27.6 [4],[5]
Investment, Identifier [Axis]: Arrowhead Holdco Company and Arrowhead GS Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   3.7
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.2 [4],[5]
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 2.1 [4],[5]
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Atlas Intermediate III, L.L.C., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.3 [1],[2] 10.0 [4],[5]
Investment, Identifier [Axis]: Automotive Keys Group, LLC and Automotive Keys Investor, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Avalara, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 72.2  
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.4 [1],[2] 6.6 [4],[5]
Investment, Identifier [Axis]: Aventine Intermediate LLC & Aventine Holdings II LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 39.4 [2] 35.6 [5]
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 9.1  
Investment, Identifier [Axis]: Aventiv Technologies, LLC and Securus Technologies Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Avetta, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 11.8 [4],[5]
Investment, Identifier [Axis]: AxiomSL Group, Inc. and Calypso Group, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 21.2 [1],[2] 21.4 [4],[5]
Investment, Identifier [Axis]: BAART Programs, Inc., MedMark Services, Inc., and Canadian Addiction Treatment Centres LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.0  
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 0.2 [4],[5]
Investment, Identifier [Axis]: BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.0 [2] 4.5 [5]
Investment, Identifier [Axis]: Badger Sportswear Acquisition, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 56.8 [1],[2] 56.8 [4],[5]
Investment, Identifier [Axis]: Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 29.5 [1],[2] 29.5 [4],[5]
Investment, Identifier [Axis]: Bamboo Purchaser, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 17.9 [1],[2] 39.1 [4],[5]
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   6.7
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 20.3  
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2] 7.7 [4],[5]
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   5.0
Investment, Identifier [Axis]: Banyan Software Holdings, LLC and Banyan Software, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.9  
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 17.9 [1],[2],[3] 14.5 [4],[6]
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   69.5
Investment, Identifier [Axis]: Bearcat Buyer, Inc. and Bearcat Parent, Inc., Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   12.7
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 11.6 [2],[11] 0.0 [5],[12]
Investment, Identifier [Axis]: Belfor Holdings, Inc., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[11] 1.4  
Investment, Identifier [Axis]: Benefytt Technologies, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 29.1 [1],[2] 23.4 [4],[5]
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.4 [1],[2] 0.4 [4],[5]
Investment, Identifier [Axis]: Berner Food & Beverage, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.3 [4],[5]
Investment, Identifier [Axis]: Birch Permian, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   75.7
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: BlueHalo Financing Holdings, LLC, BlueHalo Global Holdings, LLC, and BlueHalo, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.8  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   15.5
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 15.9  
Investment, Identifier [Axis]: Borrower R365 Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.4  
Investment, Identifier [Axis]: Bottomline Technologies, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 18.0  
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   39.4
Investment, Identifier [Axis]: Bragg Live Food Products, LLC and SPC Investment Co., L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 28.9 [1],[2] 1.7 [4],[5]
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 4.8  
Investment, Identifier [Axis]: Businessolver.com, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.7 [1],[2] 70.2 [4],[5]
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 33.6 [2],[9] 34.0
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: CDI Holdings III Corp. and CDI Holdings I Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 3.8 [1],[2] 3.8 [4],[5]
Investment, Identifier [Axis]: CHG PPC Parent LLC & PPC CHG Blocker LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 94.6 [1],[2] 94.6 [4],[5]
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 21.8  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.8  
Investment, Identifier [Axis]: CMG HoldCo, LLC and CMG Buyer Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.4  
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.8  
Investment, Identifier [Axis]: CST Holding Company, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 49.5 [1],[2] 39.4 [4]
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 38.9 [1],[2] 49.2 [4],[5]
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.7  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   0.4
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 31.1  
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   31.4
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 11.9 [1],[2] 9.8 [4],[5]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.7 [1],[2] 12.0 [4],[5]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.8 [1],[2] 7.9 [4],[5]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured loan 5    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.3 [1],[2] 4.0 [4]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 13.7 [1],[2],[11] 7.9 [4],[5],[12]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2] 3.0 [4]
Investment, Identifier [Axis]: Cadence Aerospace, LLC, First lien senior secured revolving loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.7
Investment, Identifier [Axis]: Caerus Midco 3 S.à r.l., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 5.4  
Investment, Identifier [Axis]: Calyx Energy III, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 57.0  
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 0.3 [4],[5]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.0 [13] 2.3 [4],[5],[12]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 68.3 [1],[2] 68.3 [4],[5]
Investment, Identifier [Axis]: Captive Resources Midco, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 3.4 [1],[2] 0.6 [4],[5]
Investment, Identifier [Axis]: Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 64.3 [1],[2] 59.9 [4],[5]
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[7] 9.5  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[7] 2.1  
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.8 [2],[7] 6.8 [5],[12]
Investment, Identifier [Axis]: Center for Autism and Related Disorders, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[7] 0.6  
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 75.4 [1],[2] 67.9 [4],[5]
Investment, Identifier [Axis]: Centric Brands LLC and Centric Brands GP LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.0 [1],[2] 2.3 [4],[5]
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 3.5 [2] 0.2 [5]
Investment, Identifier [Axis]: Chariot Buyer LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   2.5
Investment, Identifier [Axis]: Chariot Buyer LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 134.4 [1],[2] 134.4 [4],[5]
Investment, Identifier [Axis]: Cheyenne Petroleum Company Limited Partnership, CPC 2001 LLC and Mill Shoals LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 49.3 [1],[2] 63.1 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 68.2 [1],[2] 68.2 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 30.0 [1],[2] 15.2 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 20.0 [1],[2] 15.5 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 15.5 [1],[2] 20.0 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 5    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.2 [1],[2] 3.0 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 6    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.9 [1],[2] 4.9 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 7    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 3.0 [1],[2] 30.0 [4],[5]
Investment, Identifier [Axis]: Cipriani USA, Inc. and Cipriani Group Holding S.A.R.L., First lien senior secured loan 8    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.0  
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 30.2 [1] 29.1 [4],[5]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.5 [1],[2] 0.6 [4],[5]
Investment, Identifier [Axis]: Color Intermediate, LLC First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 20.3  
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 33.3 [1],[2] 92.8 [4],[5]
Investment, Identifier [Axis]: Commercial Trailer Leasing, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 19.9 [2] 19.9 [5]
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.6  
Investment, Identifier [Axis]: Compex Legal Services, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.8  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.3  
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   2.6
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.1
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.6
Investment, Identifier [Axis]: Comprehensive EyeCare Partners, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.8 [1],[2] 0.3 [4],[5]
Investment, Identifier [Axis]: Computer Services, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 34.1  
Investment, Identifier [Axis]: Concert Golf Partners Holdco LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.1
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[6]   27.8
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   32.9
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   3.9
Investment, Identifier [Axis]: Consilio Midco Limited and Consilio Investment Holdings, L.P., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   11.3
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 11.7  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 74.8  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 26.9  
Investment, Identifier [Axis]: Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.8  
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 36.2 [1],[2] 36.5 [4],[5]
Investment, Identifier [Axis]: Continental Acquisition Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.4 [1],[2] 33.2 [4],[5]
Investment, Identifier [Axis]: Continental Cafe, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   15.7
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Continental Café, LLC and Infinity Ovation Yacht Charters, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.7  
Investment, Identifier [Axis]: Convera International Holdings Limited and Convera International Financial S.A R.L., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 62.8  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   2.7
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 2.7  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: CoreLogic, Inc. and T-VIII Celestial Co-Invest LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 155.7 [1],[2] 155.7 [4],[5]
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 6.2  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 4.4  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: Cority Software Inc., Cority Software (USA) Inc. and Cority Parent, Inc., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 6.3  
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[6]   6.3
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[6]   4.4
Investment, Identifier [Axis]: Cority Software Inc., IQS, Inc. and Cority Parent, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   1.1
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[11] 21.9  
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 137.5 [1],[2] 137.5 [4]
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC & Covaris Parent, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.5  
Investment, Identifier [Axis]: Cozzini Bros., Inc. and BH-Sharp Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   12.4
Investment, Identifier [Axis]: CrossCountry Mortgage, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 93.8 [1],[2] 93.8 [4],[5]
Investment, Identifier [Axis]: Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 24.5  
Investment, Identifier [Axis]: DFC Global Facility Borrower III LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 158.6 [1],[2],[3],[14] 146.4 [4],[5],[6],[15]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 164.9 [1] 166.7 [4]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.5 [1],[2] 4.3 [4],[5]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.3 [1],[2] 5.0 [4]
Investment, Identifier [Axis]: DFS Holding Company, Inc., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   0.7
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 28.0 [1],[2] 29.8 [4]
Investment, Identifier [Axis]: DRS Holdings III, Inc. and DRS Holdings I, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 25.8 [1],[2] 46.7 [4]
Investment, Identifier [Axis]: DS Admiral Bidco, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 11.9 [4],[5]
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[12]   0.3
Investment, Identifier [Axis]: DTI Holdco, Inc. and OPE DTI Holdings, Inc., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[12]   4.8
Investment, Identifier [Axis]: Datix Bidco Limited, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.3 [2],[3] 0.1 [5],[6]
Investment, Identifier [Axis]: Datix Bidco Limited, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 0.7  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 1.0  
Investment, Identifier [Axis]: Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 11.0  
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 148.6 [1],[2] 148.5 [4],[5]
Investment, Identifier [Axis]: DecoPac, Inc. and KCAKE Holdings Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.6 [1],[2] 2.4 [4],[5]
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 37.3 [4],[5]
Investment, Identifier [Axis]: Denali Holdco LLC and Denali Apexco LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   33.0
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 35.9  
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.0 [1],[2] 8.9 [4],[5]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 11.4 [4],[5]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 2.0 [4],[5]
Investment, Identifier [Axis]: Diligent Corporation and Diligent Preferred Issuer, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 0.7  
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., Common units    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   600.0
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 15.8 [1],[2] 16.0 [4]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Drilling Info Holdings, Inc. and Titan DI Preferred Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 25.0 [2] 25.0
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 40.0 [1],[2],[3] 72.0 [4],[5],[6]
Investment, Identifier [Axis]: Dye & Durham Corporation, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 5.0  
Investment, Identifier [Axis]: Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 23.2 [1],[2] 25.7 [4]
Investment, Identifier [Axis]: EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 177.9 [1],[2] 177.9 [4],[5]
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.2
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.6  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.4 [1],[2] 0.3 [4],[5]
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: EP Wealth Advisors, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.2
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 30.5 [4],[5]
Investment, Identifier [Axis]: EPS NASS Parent, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.8 [1],[2],[11] 0.9 [4],[5],[12]
Investment, Identifier [Axis]: ESHA Research, LLC and RMCF VI CIV XLVIII, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.8  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 25.5  
Investment, Identifier [Axis]: Eagle Football Holdings BidCo Limited, Senior subordinated loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 41.7  
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   26.3
Investment, Identifier [Axis]: Eckler Industries, Inc. and Eckler Purchaser LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   6.7
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   62.0
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 50.0  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 11.3 [1],[2] 20.5 [4],[5]
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.7  
Investment, Identifier [Axis]: Elemica Parent, Inc. & EZ Elemica Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.1 [1],[2] 2.3 [4],[5]
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   8.7
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.2  
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.1 [1],[2] 0.3 [4],[5]
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   5.2
Investment, Identifier [Axis]: Elevation Services Parent Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 1.4  
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 48.4 [1],[2] 46.0 [4],[5]
Investment, Identifier [Axis]: Emergency Communications Network, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.8  
Investment, Identifier [Axis]: Ensemble RCM, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 2.5  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   4.6
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 5.6  
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 6.0 [5]
Investment, Identifier [Axis]: EpiServer Inc. and Episerver Sweden Holdings AB, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 78.1  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   72.7
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 48.2 [1],[2] 80.4 [4],[5]
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 19.6  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.6  
Investment, Identifier [Axis]: Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Evolent Health LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 7.8  
Investment, Identifier [Axis]: Excelligence Holdings Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.2 [1],[2] 9.6 [4],[5]
Investment, Identifier [Axis]: Explorer Investor, Inc, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   16.6
Investment, Identifier [Axis]: ExtraHop Networks, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   1.1
Investment, Identifier [Axis]: Extrahop Networks, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 20.2  
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   3.2
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 1.4 [4],[5]
Investment, Identifier [Axis]: FM:Systems Group, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   1.5
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [5]
Investment, Identifier [Axis]: FS Squared Holding Corp. and FS Squared, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Faraday Buyer, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 52.2  
Investment, Identifier [Axis]: Faraday&Future Inc., FF Inc., Faraday SPE, LLC and Faraday Future Intelligent Electric Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   80.3
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 29.6 [1],[2] 30.0 [4]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.1 [1],[2] 1.1 [4]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.5 [1],[2],[11] 4.9 [4],[5]
Investment, Identifier [Axis]: Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 0.5  
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.4 [1],[2] 4.3 [4],[5]
Investment, Identifier [Axis]: Florida Food Products, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Florida Food Products, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 71.8 [1],[2] 71.8 [4],[5]
Investment, Identifier [Axis]: Flow Control Solutions, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   10.8
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   18.7
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 23.8  
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 12.6  
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.8 [1],[2] 24.9 [4]
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 112.6 [1],[2] 169.5 [4],[5]
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 30.3  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.1  
Investment, Identifier [Axis]: Foundation Risk Partners, Corp., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 8.6  
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   14.9
Investment, Identifier [Axis]: Frontline Technologies Group Holding LLC, Frontline Technologies Blocker Buyer, Inc., Frontline Technologies Holdings, LLC and Frontline Technologies Parent, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.1
Investment, Identifier [Axis]: GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 114.0 [1],[2] 114.0 [4],[5]
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   35.1
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.2  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.8  
Investment, Identifier [Axis]: GI Ranger Intermediate LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.4  
Investment, Identifier [Axis]: GNZ Energy Bidco Limited and Galileo Co-investment Trust I, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 30.8  
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 34.2 [1],[2] 59.1 [4],[5]
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   21.6
Investment, Identifier [Axis]: Garden Fresh Restaurant Corp. and GFRC Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   7.5
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   9.1
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [2] 0.2 [5]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.5 [2] 1.5 [5]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   21.1
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 32.4  
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 21.1 [1],[2] 32.4 [5]
Investment, Identifier [Axis]: Genesis Acquisition Co. and Genesis Ultimate Holding Co., Second lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.5 [2] 7.5 [5]
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 12.1  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 25.7  
Investment, Identifier [Axis]: Global Medical Response, Inc. and GMR Buyer Corp., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 95.4 [1],[2] 95.4 [4],[5]
Investment, Identifier [Axis]: Global Music Rights, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 22.3 [4],[5]
Investment, Identifier [Axis]: Gotham Greens Holdings, PBC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 17.7  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: GraphPAD Software, LLC, Insightful Science Intermediate I, LLC and Insightful Science Holdings, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 43.5  
Investment, Identifier [Axis]: Green Street Parent, LLC and Green Street Intermediate Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   23.7
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 26.4 [2],[9] 75.0 [4],[5]
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[9] 3.3  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 0.1  
Investment, Identifier [Axis]: H-Food Holdings, LLC and Matterhorn Parent, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 73.0 [2] 73.0 [5]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 60.5 [1],[2] 61.0 [4]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.8 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: HAI Acquisition Corporation and Aloha Topco, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.8 [1],[2] 2.6 [4],[5]
Investment, Identifier [Axis]: HH-Stella, Inc. and Bedrock Parent Holdings, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.8 [1],[2] 0.5 [4],[5]
Investment, Identifier [Axis]: Halcon Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 13.4 [2] 19.0 [5]
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 54.2  
Investment, Identifier [Axis]: Hanger, Inc, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 110.6  
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.1 [1],[2] 22.7 [4],[5]
Investment, Identifier [Axis]: Harvey Tool Company, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   5.9
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 87.2 [1],[2] 79.2 [4],[5]
Investment, Identifier [Axis]: HealthEdge Software, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 40.9 [4],[5]
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC and Heelstone Renewable Energy Investors, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 79.3  
Investment, Identifier [Axis]: Heelstone Renewable Energy, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   39.0
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.8 [1],[2] 55.0 [4],[5]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.7 [1],[2] 10.4 [4],[5]
Investment, Identifier [Axis]: High Street Buyer, Inc. and High Street Holdco LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 12.3  
Investment, Identifier [Axis]: HighTower Holding, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 8.1  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 11.9  
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [2],[11] 5.9 [5],[12]
Investment, Identifier [Axis]: Highline Aftermarket Acquisition, LLC, Highline Aftermarket SC Acquisition, Inc. and Highline PPC Blocker LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 70.4 [1],[2] 70.4 [4],[5]
Investment, Identifier [Axis]: Hometown Food Company, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 0.8  
Investment, Identifier [Axis]: Honor Technology, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.5 [1],[2] 2.5 [4],[5]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 60.4 [1],[2] 105.8 [4],[5]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.4 [1],[2] 1.6 [4],[5]
Investment, Identifier [Axis]: Huskies Parent, Inc., GI Insurity Parent LLC and GI Insurity TopCo LP, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 99.5 [2] 90.2 [5]
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 23.5  
Investment, Identifier [Axis]: IQN Holding Corp., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.4  
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans   42.3
Investment, Identifier [Axis]: IRI Holdings, Inc., IRI Group Holdings, Inc. and IRI Parent, L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   86.8
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.0  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.5  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 35.0  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.0  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 1.1  
Investment, Identifier [Axis]: ITI Holdings, Inc., First lien senior secured revolving loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.8  
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. and Scanner Holdings Corporation, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 16.6 [2] 16.6 [5]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 102.7 [1],[2] 103.3 [4],[5]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.1 [1],[2] 14.1 [4],[5]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.0 [1],[2] 1.3 [4],[5]
Investment, Identifier [Axis]: Implus Footcare, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.3 [1],[2] 5.0 [4],[5]
Investment, Identifier [Axis]: Imprivata, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 16.1  
Investment, Identifier [Axis]: Infinity Home Services HoldCo, Inc. and IHS Parent Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.4  
Investment, Identifier [Axis]: Inmar, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 28.3 [1],[2] 28.3 [4],[5]
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.5
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   16.2
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   7.9
Investment, Identifier [Axis]: Insightful Science, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   7.6
Investment, Identifier [Axis]: Insightful Science, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   39.2
Investment, Identifier [Axis]: Instituto de Banca y Comercio, Inc. & Leeds IV Advisors, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   4.0
Investment, Identifier [Axis]: Inszone Mid, LLC and INSZ Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 17.6  
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[6]   14.8
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   10.8
Investment, Identifier [Axis]: IntraPac International LLC and IntraPac Canada Corporation, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   6.2
Investment, Identifier [Axis]: Ivy Hill Asset Management, L.P., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 500.0 [1],[3] 16.0 [4],[6]
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 40.9 [2],[7] 37.2 [5],[8]
Investment, Identifier [Axis]: JDC Healthcare Management, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.8 [2],[7] 4.4 [5],[8]
Investment, Identifier [Axis]: Javlin Three LLC, Javlin Four LLC, and Javlin Five LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[6],[8]   15.7
Investment, Identifier [Axis]: Jenny C Acquisition, Inc., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.6 [2] 1.4 [5]
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   14.7
Investment, Identifier [Axis]: Jim N Nicks Management, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   2.8
Investment, Identifier [Axis]: Johnnie-O Inc. and Johnnie-O Holdings Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 19.2  
Investment, Identifier [Axis]: Joyce Lane Capital LLC and Joyce Lane Financing SPV LLC (fka Ciena Capital LLC), First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[6]   0.3
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 50.4 [1],[2] 0.6 [4],[5]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.3 [1],[2] 51.0 [4]
Investment, Identifier [Axis]: K2 Insurance Services, LLC and K2 Holdco LP, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 0.2 [4],[5]
Investment, Identifier [Axis]: KBHS Acquisition, LLC (d/b/a Alita Care, LLC), First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.2  
Investment, Identifier [Axis]: KBHS Acquisition, LLC, (d/b/a/ Alita Care, LLC) First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.8
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   29.1
Investment, Identifier [Axis]: KC Culinarte Intermediate, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   35.7
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 5.6  
Investment, Identifier [Axis]: KNPC HoldCo, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.3  
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.6 [1],[2] 12.6 [4]
Investment, Identifier [Axis]: KPS Global LLC and Cool Group LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 3.3 [1],[2] 3.4 [4]
Investment, Identifier [Axis]: Kaseya Inc. and Knockout Intermediate Holdings I Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 167.0  
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 56.8 [1],[2] 60.8 [4],[5]
Investment, Identifier [Axis]: Kellermeyer Bergensons Services, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 21.1 [4],[5]
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 40.6 [1],[2] 41.1 [4]
Investment, Identifier [Axis]: Kene Acquisition, Inc. and Kene Holdings, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 60.0 [2] 54.3 [5]
Investment, Identifier [Axis]: KeyStone Sub-debt HoldCo, LLC, Senior subordinated loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.0 [2] 7.2 [5]
Investment, Identifier [Axis]: LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 35.7  
Investment, Identifier [Axis]: LJP Purchaser, Inc. and LJP Topco, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.5  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[6]   37.0
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 3.0  
Investment, Identifier [Axis]: LS DE LLC and LM LSQ Investors LLC, Senior subordinated loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 37.0 [2],[3] 3.0 [5],[6]
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 21.2 [1],[2] 6.9 [4],[5]
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.7  
Investment, Identifier [Axis]: LSP Holdco, LLC and ZBS Mechanical Group Co-Invest Fund 2, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.1  
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   21.6
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 23.6  
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 16.7 [1] 25.5 [4]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.4 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 10.7 [4],[5]
Investment, Identifier [Axis]: Laboratories Bidco LLC and Laboratories Topco LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.8  
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   51.2
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   3.6
Investment, Identifier [Axis]: Lakers Buyer, Inc. and Lakers Parent LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   40.1
Investment, Identifier [Axis]: Largest Portfolio Company Investment | Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 377.0 342.0
Investment, Identifier [Axis]: LeanTaas Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 31.8  
Investment, Identifier [Axis]: Len the Plumber, LLC, LTP Neffsville, LLC, LTP of NJ, LLC, and LTP LSI, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   9.1
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 16.2  
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.7  
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [2] 1.0 [4],[5]
Investment, Identifier [Axis]: Lew's Intermediate Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   1.8
Investment, Identifier [Axis]: Lido Advisors, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 0.4  
Investment, Identifier [Axis]: LifeStyles Bidco Ltd., Lifestyles Intermediate Holdco Ltd. and LifeStyles Parent, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 18.6  
Investment, Identifier [Axis]: Lifescan Global Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 14.3  
Investment, Identifier [Axis]: Lifescan Global Corporation, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 0.2  
Investment, Identifier [Axis]: Lower ACS, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.4  
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.3 [1],[2] 11.7 [4],[5]
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 68.4 [1],[2] 68.5 [4],[5]
Investment, Identifier [Axis]: MB Aerospace Holdings II Corp., Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 23.6 [1],[2] 23.6 [4],[5]
Investment, Identifier [Axis]: MCH Holdings, Inc., MC Acquisition Holdings I, LLC and Privia Health Group, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   110.2
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   18.2
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   13.7
Investment, Identifier [Axis]: MMIT Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.6
Investment, Identifier [Axis]: MMax Investment Partners, Inc. (d/b/a Professional Fighters League) and PFL MMA, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   15.4
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   51.5
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 47.1  
Investment, Identifier [Axis]: MRI Software LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 17.4 [1],[2] 4.5 [4],[5]
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   123.8
Investment, Identifier [Axis]: Mac Lean-Fogg Company and MacLean-Fogg Holdings, L.L.C., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   19.1
Investment, Identifier [Axis]: MailSouth, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[7] 8.7  
Investment, Identifier [Axis]: Majesco and Magic Topco, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 30.3 [1],[2] 42.2 [4],[5]
Investment, Identifier [Axis]: Management Consulting & Research LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: Manna Pro Products, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.1 [1],[2] 1.9 [4],[5]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.5 [1],[2] 18.7 [4],[5]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.6 [1],[2] 2.1 [4]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.1 [1],[2] 6.6 [4]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.3 [1],[2] 35.0 [4],[5]
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   34.4
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.7  
Investment, Identifier [Axis]: Marmic Purchaser, LLC and Marmic Topco, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Maverick Acquisition, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 27.6 [1],[2] 57.8 [4],[5]
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[12]   15.6
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., Metis Holdco, Inc. and Metis Topco, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 84.5 [1],[2],[16] 84.5 [4],[17]
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.5 [1],[2] 5.5 [4]
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured loan, First Out Tranche    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 40.9 46.9
Investment, Identifier [Axis]: McKenzie Creative Brands, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.9  
Investment, Identifier [Axis]: Medline Borrower, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Micromeritics Instrument Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 20.7 [1],[2] 32.0 [4]
Investment, Identifier [Axis]: Microstar Logistics LLC, Microstar Global Asset Management LLC, MStar Holding Corporation and Kegstar USA Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 159.3 [1] 153.5 [4]
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 102.1  
Investment, Identifier [Axis]: Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 34.8  
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 32.5 [1],[2] 72.7 [4],[5]
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC and RCP MB Investments B, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 4.0  
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   9.2
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   4.7
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   5.0
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   106.6
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   13.9
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   17.9
Investment, Identifier [Axis]: Ministry Brands, LLC and MB Parent HoldCo, L.P. (dba Community Brands), Second lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   48.9
Investment, Identifier [Axis]: Mitchell International, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 98.1 [1],[2],[9] 91.2 [4],[5],[10]
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.6 [1],[2] 2.6 [4],[5]
Investment, Identifier [Axis]: Monica Holdco (US) Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.4  
Investment, Identifier [Axis]: Moon Valley Nursery of Arizona Retail, LLC, Moon Valley Nursery Farm Holdings, LLC, Moon Valley Nursery RE Holdings LLC, and Stonecourt IV Partners, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   79.0
Investment, Identifier [Axis]: Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 25.1  
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.7 [1],[2],[3] 0.2 [4],[5],[6]
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   2.9
Investment, Identifier [Axis]: Movati Athletic (Group) Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[6]   2.3
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 75.5 [1],[2] 2.7 [4],[5]
Investment, Identifier [Axis]: Murchison Oil and Gas, LLC and Murchison Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   38.3
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   2.4
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.3  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.3 [1],[2] 6.4 [4],[5]
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.3  
Investment, Identifier [Axis]: NAS, LLC and Nationwide Marketing Group, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.6 [1],[2] 0.6 [4],[5]
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 97.0 [1],[2] 12.1 [4],[5]
Investment, Identifier [Axis]: NCWS Intermediate, Inc. and NCWS Holdings LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 176.4 [4],[5]
Investment, Identifier [Axis]: NM GRC Holdco, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   45.4
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 32.0 [1],[2] 24.2 [4]
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.7 [1],[2] 8.1 [4]
Investment, Identifier [Axis]: NMC Skincare Intermediate Holdings II, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   6.2
Investment, Identifier [Axis]: NMN Holdings III Corp. and NMN Holdings LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[11] 2.3  
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   12.8
Investment, Identifier [Axis]: NSM Insurance Group, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   0.5
Investment, Identifier [Axis]: Napa Management Services Corporation and ASP NAPA Holdings, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   72.8
Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 1.2  
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   54.4
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   15.2
Investment, Identifier [Axis]: Navisun LLC and Navisun Holdings LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5]   46.5
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.9 [1],[2],[3] 15.0 [4],[6]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.8 [2],[3] 5.2 [5],[6]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.5 [2],[3] 24.4 [5],[6]
Investment, Identifier [Axis]: Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2],[3] 0.2 [4],[5],[6]
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 99.3  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 74.0  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 16.2  
Investment, Identifier [Axis]: Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 221.3  
Investment, Identifier [Axis]: Nest Topco Borrower Inc., KKR Nest Co-Invest L.P., and NBLY 2021-1, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 119.1 [1],[2] 119.1 [4],[5]
Investment, Identifier [Axis]: New Era Cap, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 27.8  
Investment, Identifier [Axis]: Noble Aerospace, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   20.1
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 20.0  
Investment, Identifier [Axis]: North American Fire Holdings, LLC and North American Fire Ultimate Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.9  
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 47.5 [1],[2] 48.0 [4]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.6 [1],[2] 2.6 [4]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC, Fairway Lawns, LLC and Command Pest Control, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.4  
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC and North Haven Falcon Holding Company, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 25.3 [1],[2] 22.3 [4],[5]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.9 [1],[2] 11.1 [4],[5]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.8  
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 23.5 [1],[2] 23.9 [4]
Investment, Identifier [Axis]: Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.3  
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   12.4
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   3.0
Investment, Identifier [Axis]: NueHealth Performance, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   3.3
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 25.9 [1],[2] 26.1 [4]
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 15.2 [1],[2] 15.4 [4]
Investment, Identifier [Axis]: OMH-HealthEdge Holdings, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Offen, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 1.4  
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   42.1
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   0.9
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   10.1
Investment, Identifier [Axis]: Olympia Acquisition, Inc. and Olympia TopCo, L.P., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.2
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 50.9  
Investment, Identifier [Axis]: Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.7  
Investment, Identifier [Axis]: OneDigital Borrower LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Opal Fuels LLC and Opal Fuels Inc., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [3] 28.5  
Investment, Identifier [Axis]: Opal Fuels LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans   52.7
Investment, Identifier [Axis]: OpenMarket Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 51.6 [1],[2],[3] 50.7 [4],[5],[6]
Investment, Identifier [Axis]: Osmose Utilities Services, Inc. and Pine Intermediate Holding LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 55.3 [1],[2] 55.3 [4],[5]
Investment, Identifier [Axis]: PDDS Holdco, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 9.4  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 52.9 [1],[2] 53.5 [4]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 6.1  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   7.2
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 70.1  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.7 [1],[2] 70.1 [4],[5]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.3 [1],[2] 8.3 [4],[5]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC, Second lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.2 [1],[2] 8.7 [4],[5]
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   14.9
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC), First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   2.8
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 14.9  
Investment, Identifier [Axis]: PS Operating Company LLC and PS OP Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 4.5  
Investment, Identifier [Axis]: Padres L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   92.8
Investment, Identifier [Axis]: Pathway Vet Alliance LLC and Jedi Group Holdings LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 76.3 [1],[2] 76.3 [4],[5]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 16.0 [1],[2] 11.6 [4],[5]
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.2
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 13.7  
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Pegasus Global Enterprise Holdings, LLC, Mekone Blocker Acquisition, Inc. and Mekone Parent, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 29.9 [4],[5]
Investment, Identifier [Axis]: Pelican Products, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 60.0 [1],[2] 60.0 [4],[5]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 40.9 [1],[2],[3] 1.4 [4],[5],[6]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.8 [1],[2],[3] 44.3 [4],[5],[6]
Investment, Identifier [Axis]: People Corporation, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.1 [1],[2],[3] 13.8 [4],[6]
Investment, Identifier [Axis]: People Corporation, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.3 [1],[2],[3] 2.9 [4],[5],[6]
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.3  
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 34.5 [1],[2] 8.1 [4],[5]
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 11.6 [1],[2] 0.2 [4],[5]
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   34.2
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.7
Investment, Identifier [Axis]: Petroleum Service Group LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.5 [1],[2],[11] 2.2 [4],[5],[12]
Investment, Identifier [Axis]: Petrus Buyer, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.1  
Investment, Identifier [Axis]: Petvisor Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 21.5  
Investment, Identifier [Axis]: PhyMED Management LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   55.7
Investment, Identifier [Axis]: Ping Identity Holding Corp., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.3  
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 22.6  
Investment, Identifier [Axis]: Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 55.0 [1],[2] 55.0 [4],[5]
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 106.2 [1],[2] 117.7 [4],[5]
Investment, Identifier [Axis]: Pluralsight, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Polymer Solutions Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.0  
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 11.7 [1],[2],[3] 45.8 [4],[5],[6]
Investment, Identifier [Axis]: Precinmac (US) Holdings Inc., Trimaster Manufacturing Inc. and Blade Group Holdings, LP., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 4.0  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 14.7  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: Precision Concepts International LLC and Precision Concepts Canada Corporation, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 6.2  
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 27.3 [1],[2] 27.5 [4],[5]
Investment, Identifier [Axis]: Premier Specialties, Inc. and RMCF V CIV XLIV, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.3  
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.6 [1],[2] 8.6
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.0 [13] 12.0 [5],[12]
Investment, Identifier [Axis]: Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 67.1 [2] 67.1 [5]
Investment, Identifier [Axis]: Prime Buyer, L.L.C., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.7  
Investment, Identifier [Axis]: Priority Holdings, LLC and Priority Technology Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.7 [1],[2],[3] 35.8 [4],[5],[6]
Investment, Identifier [Axis]: Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 65.0 [1],[2] 93.8 [4],[5]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   15.0
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 39.1  
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 15.4 [1],[2] 34.9 [4],[5]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 7.6 [1],[2] 0.8 [4],[5]
Investment, Identifier [Axis]: Production Resource Group, L.L.C. and PRG III, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.9 [1],[2] 5.0 [4],[5]
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 17.1  
Investment, Identifier [Axis]: Professional Fighters League, LLC and PFL MMA, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 0.1  
Investment, Identifier [Axis]: ProfitSolv Purchaser, Inc. and PS Co-Invest, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.5 [1],[2] 3.9 [4],[5]
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. and Qlik Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[9] 2.8  
Investment, Identifier [Axis]: Project Essential Bidco, Inc. and Project Essential Super Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 36.2 [1],[2] 36.6 [4],[5]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   44.1
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 43.6  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.3 [1],[2] 12.9 [4],[5]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.8 [1],[2] 19.4 [4],[5]
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 4.9  
Investment, Identifier [Axis]: Project Potter Buyer, LLC and Project Potter Parent, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.1 [1],[2],[11] 0.8 [4],[5],[12]
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp. (dba Wellsky), Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   193.1
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 193.1  
Investment, Identifier [Axis]: Proofpoint, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2],[9] 1.0 [4],[5],[10]
Investment, Identifier [Axis]: Proofpoint, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 34.6 [1],[2] 34.6 [4],[5]
Investment, Identifier [Axis]: Pueblo Mechanical and Controls, LLC and OMERS PMC Investment Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.4  
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 16.9 [1],[2] 18.2 [4]
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 6.4 [4],[5]
Investment, Identifier [Axis]: Pyramid Management Advisors, LLC and Pyramid Investors, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.7 [1],[2],[11] 9.6 [4],[5],[12]
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   8.1
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 8.1  
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.8 [1],[2] 15.5 [4],[5]
Investment, Identifier [Axis]: QF Holdings, Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.7  
Investment, Identifier [Axis]: Qnnect, LLC and Connector TopCo, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.6  
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.5  
Investment, Identifier [Axis]: RB Holdings InterCo, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.8  
Investment, Identifier [Axis]: RD Holdco Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 24.2  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: RMS HoldCo II, LLC & RMS Group Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: RMS Holdco II, LLC & RMS Group Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   23.5
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 32.8 [1],[2] 33.1 [4]
Investment, Identifier [Axis]: RSC Acquisition, Inc. and RSC Insurance Brokerage, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   0.3
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.5 [1],[2] 28.5 [4]
Investment, Identifier [Axis]: RTI Surgical, Inc. and Pioneer Surgical Technology, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.8 [1],[2] 5.0 [4],[5]
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.4  
Investment, Identifier [Axis]: Radius Aerospace, Inc. and Radius Aerospace Europe Limited, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.4  
Investment, Identifier [Axis]: Radwell Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 19.5  
Investment, Identifier [Axis]: Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.5 [1],[2],[3] 28.5 [4],[5],[6]
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 49.7 [1],[2] 93.2 [4],[5]
Investment, Identifier [Axis]: Rawlings Sporting Goods Company, Inc. and Easton Diamond Sports, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 8.8 [4],[5]
Investment, Identifier [Axis]: RealPage, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 84.1 [1],[2] 84.1 [4],[5]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 61.3 [1],[2] 61.9 [4]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 4.2 [1],[2] 4.3 [4],[5]
Investment, Identifier [Axis]: Reddy Ice LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.9 [1],[2] 13.0 [4],[5]
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.8 [1],[2] 1.0 [4],[5]
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 12.5 [4],[5]
Investment, Identifier [Axis]: Redwood Services, LLC and Redwood Services Holdco, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   25.0
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 23.7  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.3 [1],[2] 1.1 [4]
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   12.1
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 35.5  
Investment, Identifier [Axis]: Reef Lifestyle, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2] 0.6 [4],[5]
Investment, Identifier [Axis]: Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.7 [1],[2] 37.9 [4],[5]
Investment, Identifier [Axis]: Relativity ODA LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.5 [1],[2] 59.8 [4],[5]
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.7  
Investment, Identifier [Axis]: Revalize, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   9.5
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.3  
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2],[3] 0.7 [6]
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2],[3] 7.7 [5],[6]
Investment, Identifier [Axis]: Rialto Management Group, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [3],[13] 0.0  
Investment, Identifier [Axis]: Riser Merger Sub, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.7  
Investment, Identifier [Axis]: Riverview Power LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 57.6 [1],[2] 54.2 [4],[5]
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 16.9 [1],[2] 17.1 [4],[5]
Investment, Identifier [Axis]: Rodeo AcquisitionCo LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.3 [1],[2] 0.4 [4],[5]
Investment, Identifier [Axis]: Rug Doctor, LLC and RD Holdco Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   22.0
Investment, Identifier [Axis]: SCIH Salt Holdings Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.3 [1],[2],[11] 2.1 [4],[5],[12]
Investment, Identifier [Axis]: SCM Insurance Services Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 61.1 [1],[2],[3] 20.4 [4],[5],[6]
Investment, Identifier [Axis]: SCM Insurance Services Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[6]   60.0
Investment, Identifier [Axis]: SE1 Generation, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 57.5 [2] 58.8 [5]
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   10.1
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.0  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.2 [1],[2] 6.3 [4]
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.4  
Investment, Identifier [Axis]: SFE Intermediate Holdco LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 8.3  
Investment, Identifier [Axis]: SG Acquisition, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 33.8 [1],[2] 35.6 [4]
Investment, Identifier [Axis]: SHO Holding I Corporation, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 124.9 [2],[7] 116.2 [4],[5]
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 61.1  
Investment, Identifier [Axis]: SOC Telemed, Inc. and PSC Spark Holdings, LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 22.7  
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   21.4
Investment, Identifier [Axis]: SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 21.0  
Investment, Identifier [Axis]: SV-Burton Holdings, LLC & LBC Breeze Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   11.0
Investment, Identifier [Axis]: SV-Burton Holdings, LLC and LBC Breeze Holdings LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.3  
Investment, Identifier [Axis]: SVP-Singer Holdings Inc. and SVP-Singer Holdings LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 44.4 [1],[2] 44.9 [4],[5]
Investment, Identifier [Axis]: Safe Home Security, Inc., Security Systems Inc., Safe Home Monitoring, Inc., National Protective Services, Inc., Bright Integrations LLC and Medguard Alert, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 47.9 [1],[2] 46.2 [4],[5]
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.9  
Investment, Identifier [Axis]: SageSure Holdings, LLC & Insight Catastrophe Group, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 14.0  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC and Landscape Parallel Partners, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   5.8
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.6  
Investment, Identifier [Axis]: Schill Landscaping and Lawn Care Services LLC, Tender Lawn Care ULC and Landscape Parallel Partners, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: SelectQuote, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.2 [1],[2] 22.6 [4],[5]
Investment, Identifier [Axis]: Senior Direct Lending Program, LLC, Subordinated certificates    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1,274.1 [3],[13] 987.3 [6]
Investment, Identifier [Axis]: Service Logic Acquisition, Inc. and MSHC, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1  
Investment, Identifier [Axis]: Shermco Intermediate Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 2.7  
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2],[11] 19.2 [4],[5]
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   1.1
Investment, Identifier [Axis]: Shock Doctor, Inc. and Shock Doctor Holdings, LLC, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   0.1
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   27.0
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   1.0
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 26.8  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: Shur-Co Acquisition, Inc. and Shur-Co Holdco, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 1.8  
Investment, Identifier [Axis]: SiroMed Physician Services, Inc. and SiroMed Equity Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 10.3 [1],[2] 11.5 [4]
Investment, Identifier [Axis]: Smarsh Inc. and Skywalker TopCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.9  
Investment, Identifier [Axis]: Smarsh Inc., MobileGuard, LLC, Actiance, Inc. and Skywalker TopCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   13.3
Investment, Identifier [Axis]: Sophia, L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 105.9 [1],[2] 105.9 [4],[5]
Investment, Identifier [Axis]: Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.6  
Investment, Identifier [Axis]: Spring Insurance Solutions, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 22.0 [1],[2] 19.7 [4]
Investment, Identifier [Axis]: Stamps.com Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 146.8 [1],[2] 197.9 [4],[5]
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 51.3 [1],[2],[3] 50.5 [4],[6]
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.2 [1],[2],[3] 0.8 [4],[5],[6]
Investment, Identifier [Axis]: Stealth Holding LLC and UCIT Online Security Inc., First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 2.5  
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 42.8 [1],[2] 42.8 [4],[5]
Investment, Identifier [Axis]: Storable, Inc. and EQT IX Co-Investment (E) SCSP, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.3  
Investment, Identifier [Axis]: Storm Investment S.a.r.l., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 66.0 [2],[3] 70.2 [5],[6]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 52.0 [1],[2] 17.4 [4],[5]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.3 [1],[2] 74.4 [4],[5]
Investment, Identifier [Axis]: Sun Acquirer Corp. and Sun TopCo, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 0.0  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   15.4
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 20.1  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.8  
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.9
Investment, Identifier [Axis]: Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation, Diecast Beacon, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [2] 0.1 [5]
Investment, Identifier [Axis]: Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 147.9 [1],[2] 142.5 [4],[5]
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 24.4  
Investment, Identifier [Axis]: Sunrun Luna Holdco 2021, LLC, Senior subordinated revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 16.3  
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.3 [2] 0.4 [5]
Investment, Identifier [Axis]: Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 72.5 [1],[2] 69.3
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 12.4  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 3.1  
Investment, Identifier [Axis]: Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 76.2 [1],[2] 69.9 [4],[5]
Investment, Identifier [Axis]: Synergy HomeCare Franchising, LLC and NP/Synergy Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 13.1 [1],[2] 15.3 [4]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   0.1
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 8.3 [4],[5]
Investment, Identifier [Axis]: TA/WEG Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   0.8
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   6.6
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 34.4  
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.5 [1],[2] 4.0 [4],[5]
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   34.8
Investment, Identifier [Axis]: TCP Hawker Intermediate LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 17.0 0.6 [4],[5]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.9 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 23.2 [4],[5]
Investment, Identifier [Axis]: THG Acquisition, LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   14.9
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 35.1  
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 1.3  
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.4 [1],[2] 1.1 [4],[5]
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.4 [1],[2] 0.5 [4],[5]
Investment, Identifier [Axis]: Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P., First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.4  
Investment, Identifier [Axis]: Teasdale Foods, Inc. and Familia Group Holdings Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 75.9 [1],[2] 78.3 [4],[5]
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   8.8
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   1.4
Investment, Identifier [Axis]: Teligent, Inc, Second lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [5],[8]   77.8
Investment, Identifier [Axis]: Tempus Labs, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 71.4  
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 5.0 [1],[2] 5.1 [4]
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.0 [1],[2] 2.1 [4]
Investment, Identifier [Axis]: TerSera Therapeutics LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.8 [1],[2] 1.8 [4]
Investment, Identifier [Axis]: The Alaska Club Partners, LLC, Athletic Club Partners LLC and The Alaska Club, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 12.5 [1],[2] 15.5 [4],[5]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 47.2 [4],[5]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.9 [1],[2] 2.0 [4],[5]
Investment, Identifier [Axis]: The Arcticom Group, LLC and AMCP Mechanical Holdings, LP, First lien senior secured revolving loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 2.5  
Investment, Identifier [Axis]: The Edelman Financial Center, LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 13.4  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 3.5  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.1  
Investment, Identifier [Axis]: The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3] 3.0  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 213.5  
Investment, Identifier [Axis]: The NPD Group, L.P., IRI Group Holdings, Inc., Information Resources, Inc. and IRI-NPD Co-Invest Aggregator, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.7  
Investment, Identifier [Axis]: The Ultimus Group Midco, LLC, The Ultimus Group, LLC, and The Ultimus Group Aggregator, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 37.4 [1],[2] 37.8 [4]
Investment, Identifier [Axis]: Therapy Brands Holdings LLC, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 29.1 [1],[2] 20.5 [4],[5]
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 23.0 [1],[2] 23.0 [4],[5]
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien secured notes    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[9] 88.9  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 10.9  
Investment, Identifier [Axis]: TibCo Software Inc., Picard Parent, Inc., Picard MidCo, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 85.3  
Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments | Senior Direct Lending Program    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1,631.0 1,540.0
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 2.2 [1],[2] 2.2 [4],[5]
Investment, Identifier [Axis]: Totes Isotoner Corporation and Totes Ultimate Holdco, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.6 [1],[2] 1.6 [4],[5]
Investment, Identifier [Axis]: Trader Corporation and Project Auto Finco Corp.., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 12.2  
Investment, Identifier [Axis]: Triton Water Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 1.0 [1],[2],[9] 1.0 [4],[5],[10]
Investment, Identifier [Axis]: Triton Water Holdings, Inc., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [2],[9] 0.1 [5],[10]
Investment, Identifier [Axis]: U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 147.8 [1],[2] 147.8 [4],[5]
Investment, Identifier [Axis]: UKG Inc. and H&F Unite Partners, L.P., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[3],[11] 10.6  
Investment, Identifier [Axis]: US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 26.4 [1],[2] 40.1 [4],[5]
Investment, Identifier [Axis]: United Digestive MSO Parent, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.0  
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   8.8
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   5.2
Investment, Identifier [Axis]: VLS Recovery Services, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5],[12]   1.3
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   6.4
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[11] 6.2  
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 3.1  
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 27.3 [1],[2] 7.0 [4],[5]
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 9.4 [1],[2] 5.5 [4],[5]
Investment, Identifier [Axis]: VPROP Operating, LLC and V SandCo, LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 6.0 [1],[2] 25.1 [4],[5]
Investment, Identifier [Axis]: VRC Companies, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1] 0.0  
Investment, Identifier [Axis]: VRC Companies, LLC, Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2] 5.0  
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[9] 14.8  
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 122.7 [1],[2] 21.1 [4],[5]
Investment, Identifier [Axis]: Varsity Brands Holding Co., Inc. and BCPE Hercules Holdings, LP, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 21.1 [1],[2] 122.7 [4]
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.8  
Investment, Identifier [Axis]: Verista, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.1  
Investment, Identifier [Axis]: Viant Medical Holdings, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [2],[9] 3.2  
Investment, Identifier [Axis]: Visual Edge Technology, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 32.6 [1],[2] 32.5 [4],[5]
Investment, Identifier [Axis]: Visual Edge Technology, Inc., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 103.8 [2],[7] 88.6 [5]
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 33.1  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 14.5  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 11.3  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 10.7  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 5    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 4.5  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 6    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured loan 7    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC and WSHP FC Holdings LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 8.6  
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   4.9
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   33.4
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   4.5
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   11.4
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 5    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   10.8
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured loan 6    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   9.0
Investment, Identifier [Axis]: WSHP FC Acquisition LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   1.5
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 14.7 [1],[2] 14.9 [4]
Investment, Identifier [Axis]: Walnut Parent, Inc., First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 19.9 [4],[5]
Investment, Identifier [Axis]: Wand Newco 3, Inc., Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 182.6 [2] 180.2 [5]
Investment, Identifier [Axis]: Wash Encore Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 98.5 [1],[2] 135.6 [4],[5]
Investment, Identifier [Axis]: Watermill Express, LLC and Watermill Express Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 20.4 [1],[2] 19.4 [4]
Investment, Identifier [Axis]: Waverly Advisors, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[3] 0.6  
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 48.1 [1],[2] 48.1 [4],[5]
Investment, Identifier [Axis]: WebPT, Inc., First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.3  
Investment, Identifier [Axis]: Wellness AcquisitionCo, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 0.1 [4],[5]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 18.0 [1],[2] 18.2 [4]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1],[2] 9.5 [4],[5]
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.2  
Investment, Identifier [Axis]: Wildcat BuyerCo, Inc. and Wildcat Parent, LP, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2],[11] 0.8  
Investment, Identifier [Axis]: Winebow Holdings, Inc. and The Vintner Group, Inc., First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 28.0 [1],[2] 28.3 [4]
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   61.6
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 67.4  
Investment, Identifier [Axis]: WorkWave Intermediate II, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 17.3  
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 37.0 [1] 16.3 [4],[5]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.1 [1],[2] 39.3 [4],[5]
Investment, Identifier [Axis]: XIFIN, Inc. and ACP Charger Co-Invest LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 0.2 [1] 1.1 [4],[5]
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 8.2 [1],[2] 8.0 [4],[5]
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: YE Brands Holdings, LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 1.5  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 0.1  
Investment, Identifier [Axis]: ZB Holdco LLC & ZB Parent LLC, First lien senior secured revolving loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [13] 0.0  
Investment, Identifier [Axis]: ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP, First lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 42.4  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4],[5]   56.0
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 55.8  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans 56.0 [1],[2] 5.4 [4],[5]
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 3    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 24.3  
Investment, Identifier [Axis]: eCapital Finance Corp., Senior subordinated loan 4    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 5.4  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [4]   22.5
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 1    
Schedule of Investments [Line Items]    
Total first lien senior secured loans [1],[2] 30.6  
Investment, Identifier [Axis]: eResearch Technology, Inc. and Astorg VII Co-Invest ERT, Second lien senior secured loan 2    
Schedule of Investments [Line Items]    
Total first lien senior secured loans $ 17.2 [1],[2] $ 30.6 [4],[5]
[1] Loan includes interest rate floor feature.
[2] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[3] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 25% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2022.
[4] Loan includes interest rate floor feature.
[5] These assets are pledged as collateral under the Company’s or the Company’s consolidated subsidiaries’ various revolving credit facilities and, as a result, are not directly available to the creditors of the Company to satisfy any obligations of the Company other than the obligations under each of the respective facility (see Note 5).
[6] This portfolio company is not a qualifying asset under Section 55(a) of the Investment Company Act. Under the Investment Company Act, the Company may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of the Company's total assets. Pursuant to Section 55(a) of the Investment Company Act, 16% of the Company's total assets are represented by investments at fair value and other assets that are considered "non-qualifying assets" as of December 31, 2021.
[7] Loan was on non-accrual status as of December 31, 2022.
[8] Loan was on non-accrual status as of December 31, 2021.
[9] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[10] Other than the investments noted by this footnote, the fair value of the Company’s investments is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 8 to the consolidated financial statements for more information regarding the fair value of the Company’s investments.
[11] As of December 31, 2022, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[12] As of December 31, 2021, in addition to the amounts funded by the Company under this first lien senior secured revolving loan, there were also letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[13] As of December 31, 2022, no amounts were funded by the Company under this first lien senior secured revolving loan; however, there were letters of credit issued and outstanding through a financial intermediary under the loan. See Note 7 for further information on letters of credit commitments related to certain portfolio companies.
[14] The Company sold a participating interest of approximately $79.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $79.0 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2022, the interest rate in effect for the secured borrowing was 11.62%.
[15] The Company sold a participating interest of approximately $75.0 in aggregate principal amount outstanding of the portfolio company’s first lien senior secured revolving loan. As the transaction did not qualify as a “true sale” in accordance with GAAP, the Company recorded a corresponding $73.2 secured borrowing, at fair value, included in “secured borrowings” in the accompanying consolidated balance sheet. As of December 31, 2021, the interest rate in effect for the secured borrowing was 8.50%.
[16] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $40.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
[17] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 2.00% on $46.9 in aggregate principal amount of a “first out” tranche of the portfolio company’s senior term debt previously syndicated by the Company into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
v3.22.4
INVESTMENTS - Selected Financial Information for the SLDP (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]      
Fair Value $ 21,779.8 $ 20,009.5  
Other assets 81.0 99.0  
Total assets 22,398.0 20,843.0  
Total liabilities 12,843.0 11,975.0  
Total liabilities and stockholders’ equity 22,398.0 20,843.0  
Total investment income 2,096.0 1,820.0 $ 1,511.0
Interest expense 455.0 372.0 317.0
Other expenses 27.0 24.0 25.0
Total expenses 949.0 1,050.0 698.0
Net investment income 1,092.0 741.0 794.0
Net realized losses on investments and other transactions (444.0) 869.0 (310.0)
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 600.0 1,567.0 484.0
Amortized Cost 22,043.0 19,810.0  
Senior Direct Lending Program      
Schedule of Investments [Line Items]      
Fair Value 4,958.0 4,127.0  
Other assets 150.0 84.0  
Total assets 5,108.0 4,211.0  
Senior notes 3,538.0 2,939.0  
Intermediate funding notes 132.0 101.0  
Other liabilities 110.0 51.0  
Total liabilities 3,780.0 3,091.0  
Subordinated certificates and members’ capital 1,328.0 1,120.0  
Total liabilities and stockholders’ equity 5,108.0 4,211.0  
Total investment income 365.0 282.0 302.0
Interest expense 155.0 91.0 113.0
Other expenses 20.0 18.0 16.0
Total expenses 175.0 109.0 129.0
Net investment income 190.0 173.0 173.0
Net realized losses on investments and other transactions (147.0) 70.0 (64.0)
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 43.0 243.0 $ 109.0
Amortized Cost $ 5,166.0 $ 4,193.0  
v3.22.4
INVESTMENTS - Ivy Hill Asset Management, L.P. (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
borrower
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Schedule of Investments [Line Items]      
Amortized cost of investments $ 22,043.0 $ 19,810.0  
Purchases of investments 9,852.0 13,644.0 $ 6,759.0
Ivy Hill Asset Management, L.P.      
Schedule of Investments [Line Items]      
Amortized cost of investments 2,048.0 781.0  
Purchases of investments 27.0    
Realized loss on sale of investments 20.0 7.0 21.0
Ivy Hill Asset Management, L.P.      
Schedule of Investments [Line Items]      
Assets under management $ 13,100.0    
Number of borrowers | borrower 21    
Amortized cost of investments $ 2,370.0 966.0  
Management and incentive fee income 48.0 31.0 28.0
Other investment-related income 189.0 91.0 75.0
Purchases of investments $ 3,358.0 $ 2,407.0 $ 940.0
v3.22.4
INVESTMENTS - Amortized Cost and Fair Value of the Investment in IHAM (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]    
Amortized Cost $ 22,043.0 $ 19,810.0
Fair Value 21,779.8 20,009.5
Ivy Hill Asset Management, L.P.    
Schedule of Investments [Line Items]    
Amortized Cost 2,048.0 781.0
Fair Value 2,201.0 936.0
Subordinated debt    
Schedule of Investments [Line Items]    
Amortized Cost 500.0 16.0
Fair Value 500.0 16.0
Equity investment    
Schedule of Investments [Line Items]    
Amortized Cost 1,548.0 765.0
Fair Value $ 1,701.0 $ 920.0
v3.22.4
INVESTMENTS - Dividend and Interest Income, IHAM (Details) - Ivy Hill Asset Management, L.P. - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]      
Interest income $ 23 $ 3 $ 6
Dividend income $ 205 $ 93 $ 74
v3.22.4
INVESTMENTS - IHAM Selected Balance Sheet Information (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Assets    
Fair Value $ 21,779.8 $ 20,009.5
Cash and cash equivalents 303.0 372.0
Other assets 81.0 99.0
Total assets 22,398.0 20,843.0
Liabilities    
Total liabilities 12,843.0 11,975.0
Equity    
Total liabilities and stockholders’ equity 22,398.0 20,843.0
Amortized Cost 22,043.0 19,810.0
Unrealized depreciation (200.0) 100.0
Ivy Hill Asset Management, L.P.    
Assets    
Fair Value 8,998.0 5,549.0
Cash and cash equivalents 504.0 424.0
Other assets 98.0 83.0
Total assets 9,600.0 6,056.0
Liabilities    
Debt 7,276.0 4,781.0
Subordinated note from ARCC 500.0 16.0
Subordinated notes 281.0 283.0
Other liabilities 131.0 91.0
Total liabilities 8,188.0 5,171.0
Equity    
Contributed capital 1,547.0 765.0
Accumulated earnings 61.0 78.0
Net unrealized losses on investments and foreign currency transactions (33.0) 0.0
Non-controlling interests in Consolidated IHAM Vehicles (163.0) 42.0
Total equity 1,412.0 885.0
Total liabilities and stockholders’ equity 9,600.0 6,056.0
Amortized Cost 2,370.0 966.0
Ivy Hill Asset Management, L.P. | Intersegment Eliminations    
Assets    
Fair Value (2,315.0) (927.0)
Cash and cash equivalents 0.0 0.0
Other assets (51.0) (8.0)
Total assets (2,366.0) (935.0)
Liabilities    
Debt 0.0 0.0
Subordinated note from ARCC 0.0 0.0
Subordinated notes (1,093.0) (700.0)
Other liabilities (15.0) (9.0)
Total liabilities (1,108.0) (709.0)
Equity    
Contributed capital 0.0 0.0
Accumulated earnings 0.0 0.0
Net unrealized losses on investments and foreign currency transactions 0.0 0.0
Non-controlling interests in Consolidated IHAM Vehicles (1,258.0) (226.0)
Total equity (1,258.0) (226.0)
Total liabilities and stockholders’ equity (2,366.0) (935.0)
Ivy Hill Asset Management, L.P. | Ivy Hill Asset Management, L.P. | Operating Segments    
Assets    
Fair Value 2,340.0 966.0
Cash and cash equivalents 5.0 8.0
Other assets 55.0 12.0
Total assets 2,400.0 986.0
Liabilities    
Debt 308.0 125.0
Subordinated note from ARCC 500.0 16.0
Subordinated notes 0.0 0.0
Other liabilities 17.0 2.0
Total liabilities 825.0 143.0
Equity    
Contributed capital 1,547.0 765.0
Accumulated earnings 61.0 78.0
Net unrealized losses on investments and foreign currency transactions (33.0) 0.0
Non-controlling interests in Consolidated IHAM Vehicles 0.0 0.0
Total equity 1,575.0 843.0
Total liabilities and stockholders’ equity 2,400.0 986.0
Amortized Cost 9,306.0 5,588.0
Ivy Hill Asset Management, L.P. | Consolidated IHAM Vehicles | Operating Segments    
Assets    
Fair Value 8,973.0 5,510.0
Cash and cash equivalents 499.0 416.0
Other assets 94.0 79.0
Total assets 9,566.0 6,005.0
Liabilities    
Debt 6,968.0 4,656.0
Subordinated note from ARCC 0.0 0.0
Subordinated notes 1,374.0 983.0
Other liabilities 129.0 98.0
Total liabilities 8,471.0 5,737.0
Equity    
Contributed capital 0.0 0.0
Accumulated earnings 0.0 0.0
Net unrealized losses on investments and foreign currency transactions 0.0 0.0
Non-controlling interests in Consolidated IHAM Vehicles 1,095.0 268.0
Total equity 1,095.0 268.0
Total liabilities and stockholders’ equity 9,566.0 6,005.0
Unrealized depreciation $ 309.0 $ 30.0
v3.22.4
INVESTMENTS - IHAM Selected Statement of Operations Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Revenues      
Total investment income $ 2,096 $ 1,820 $ 1,511
Expenses      
Interest expense 455 372 317
Other Income (Loss)      
Net realized gains on investments, foreign currency, extinguishment of debt and other transactions 81 283 (166)
Net unrealized gains (losses) on investments and other transactions (525) 586 (144)
Total net realized and unrealized losses on investments and other transactions (444) 869 (310)
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 600 1,567 484
Ivy Hill Asset Management, L.P.      
Revenues      
Investment income 597 289 289
Other income 10 11 9
Total investment income 607 300 298
Expenses      
Interest expense 296 104 127
Distributions to subordinated notes 35 34 34
Management fees and other expenses 24 23 19
Total expenses 355 161 180
Net operating income 252 139 118
Other Income (Loss)      
Net realized gains on investments, foreign currency, extinguishment of debt and other transactions (12) 46 46
Net unrealized gains (losses) on investments and other transactions (281) 94 (27)
Total net realized and unrealized losses on investments and other transactions (293) 140 19
Net income (loss) (41) 279 137
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles (196) 156 61
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 155 123 76
Ivy Hill Asset Management, L.P. | Intersegment Eliminations      
Revenues      
Investment income (185) (93) (78)
Other income (46) (27) (26)
Total investment income (231) (120) (104)
Expenses      
Interest expense 0 0 0
Distributions to subordinated notes (95) (101) (79)
Management fees and other expenses (46) (27) (26)
Total expenses (141) (128) (105)
Net operating income (90) 8 1
Other Income (Loss)      
Net realized gains on investments, foreign currency, extinguishment of debt and other transactions 0 (28) 0
Net unrealized gains (losses) on investments and other transactions 31 (15) 6
Total net realized and unrealized losses on investments and other transactions 31 (43) 6
Net income (loss) (59) (35) 7
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles (59) (35) 7
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 0 0 0
Ivy Hill Asset Management, L.P. | Ivy Hill Asset Management, L.P. | Operating Segments      
Revenues      
Investment income 188 97 79
Other income 49 31 28
Total investment income 237 128 107
Expenses      
Interest expense 35 5 8
Distributions to subordinated notes 0 0 0
Management fees and other expenses 14 12 12
Total expenses 49 17 20
Net operating income 188 111 87
Other Income (Loss)      
Net realized gains on investments, foreign currency, extinguishment of debt and other transactions 0 (6) (4)
Net unrealized gains (losses) on investments and other transactions (33) 18 (7)
Total net realized and unrealized losses on investments and other transactions (33) 12 (11)
Net income (loss) 155 123 76
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles 0 0 0
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS 155 123 76
Ivy Hill Asset Management, L.P. | Consolidated IHAM Vehicles | Operating Segments      
Revenues      
Investment income 594 285 288
Other income 7 7 7
Total investment income 601 292 295
Expenses      
Interest expense 261 99 119
Distributions to subordinated notes 130 135 113
Management fees and other expenses 56 38 33
Total expenses 447 272 265
Net operating income 154 20 30
Other Income (Loss)      
Net realized gains on investments, foreign currency, extinguishment of debt and other transactions (12) 80 50
Net unrealized gains (losses) on investments and other transactions (279) 91 (26)
Total net realized and unrealized losses on investments and other transactions (291) 171 24
Net income (loss) (137) 191 54
Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles (137) 191 54
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS $ 0 $ 0 $ 0
v3.22.4
DEBT - Debt Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Jun. 21, 2019
Jun. 20, 2019
Debt Instrument [Line Items]        
Asset coverage requirement applicable to senior securities 177.00%   150.00% 200.00%
Principal amount of debt outstanding $ 12,245 $ 11,061    
Weighted average stated interest rate 4.20% 3.10%    
Weighted Average        
Debt Instrument [Line Items]        
Term of debt instrument 3 years 7 months 6 days 4 years 2 months 12 days    
v3.22.4
DEBT - Schedule of Outstanding Debt (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding $ 16,221,000,000 $ 15,248,000,000
Principal amount outstanding 12,245,000,000 11,061,000,000
Carrying value 12,210,000,000 11,020,000,000
Revolving Credit Facility    
Debt Instrument [Line Items]    
Borrowing capacity increase under line of credit 7,265,000,000 7,265,000,000
SMBC Funding Facility    
Debt Instrument [Line Items]    
Borrowing capacity increase under line of credit 1,000,000,000.0 1,000,000,000.0
Line of Credit | Revolving Credit Facility    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 4,843,000,000 4,232,000,000
Principal amount outstanding 2,246,000,000 1,507,000,000
Carrying value 2,246,000,000 1,507,000,000
Line of Credit | Revolving Funding Facility    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 1,775,000,000 1,525,000,000
Principal amount outstanding 800,000,000 762,000,000
Carrying value 800,000,000 762,000,000
Line of Credit | SMBC Funding Facility    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 800,000,000 800,000,000
Principal amount outstanding 451,000,000 401,000,000
Carrying value 451,000,000 401,000,000
Line of Credit | BNP Funding Facility    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 300,000,000 300,000,000
Principal amount outstanding 245,000,000 0
Carrying value 245,000,000 0
Convertible Debt | 2022 Convertible Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 0 388,000,000
Principal amount outstanding 0 388,000,000
Carrying value 0 388,000,000
Total unamortized debt issuance costs and unamortized discount   0
Convertible Debt | 2024 Convertible Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 403,000,000 403,000,000
Principal amount outstanding 403,000,000 403,000,000
Carrying value 399,000,000 395,000,000
Total unamortized debt issuance costs and unamortized discount 4,000,000 8,000,000
Senior Notes | 2023 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 750,000,000 750,000,000
Principal amount outstanding 750,000,000 750,000,000
Carrying value 750,000,000 748,000,000
Total unamortized debt issuance costs and unamortized discount 0 2,000,000
Senior Notes | 2024 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 900,000,000 900,000,000
Principal amount outstanding 900,000,000 900,000,000
Carrying value 898,000,000 897,000,000
Total unamortized debt issuance costs and unamortized discount 2,000,000 3,000,000
Senior Notes | March 2025 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 600,000,000 600,000,000
Principal amount outstanding 600,000,000 600,000,000
Carrying value 597,000,000 596,000,000
Total unamortized debt issuance costs and unamortized discount 3,000,000 4,000,000
Senior Notes | July 2025 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 1,250,000,000 1,250,000,000
Principal amount outstanding 1,250,000,000 1,250,000,000
Carrying value 1,258,000,000 1,260,000,000
Total unamortized debt issuance costs and unamortized discount (8,000,000) (10,000,000)
Senior Notes | January 2026 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 1,150,000,000 1,150,000,000
Principal amount outstanding 1,150,000,000 1,150,000,000
Carrying value 1,144,000,000 1,143,000,000
Total unamortized debt issuance costs and unamortized discount 6,000,000 7,000,000
Senior Notes | July 2026 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 1,000,000,000 1,000,000,000
Principal amount outstanding 1,000,000,000 1,000,000,000
Carrying value 991,000,000 988,000,000
Total unamortized debt issuance costs and unamortized discount 9,000,000 12,000,000
Senior Notes | 2027 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 500,000,000 0
Principal amount outstanding 500,000,000 0
Carrying value 494,000,000 0
Total unamortized debt issuance costs and unamortized discount 6,000,000  
Senior Notes | 2028 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 1,250,000,000 1,250,000,000
Principal amount outstanding 1,250,000,000 1,250,000,000
Carrying value 1,247,000,000 1,246,000,000
Total unamortized debt issuance costs and unamortized discount 3,000,000 4,000,000
Senior Notes | 2031 Notes    
Debt Instrument [Line Items]    
Total aggregate principal amount committed / outstanding 700,000,000 700,000,000
Principal amount outstanding 700,000,000 700,000,000
Carrying value 690,000,000 689,000,000
Total unamortized debt issuance costs and unamortized discount $ 10,000,000 $ 11,000,000
v3.22.4
DEBT - Revolving Credit Facility Narrative (Details)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2017
USD ($)
Mar. 30, 2022
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]            
Principal amount of debt outstanding $ 12,245     $ 12,245 $ 12,245 $ 11,061
Principal amount of debt 16,221     16,221 16,221 15,248
Interest rate swap            
Debt Instrument [Line Items]            
Derivative, term of contract (in years)   3 years        
Revolving Credit Facility            
Debt Instrument [Line Items]            
Borrowing capacity increase under line of credit 7,265     $ 7,265 $ 7,265 7,265
Percentage of total commitment under line of credit     0.85 0.85    
Percentage of unused portion of line of credit commitment         0.375%  
Revolving Credit Facility | Minimum            
Debt Instrument [Line Items]            
Percentage of line of credit commitment         2.00%  
Revolving Credit Facility | Maximum            
Debt Instrument [Line Items]            
Percentage of line of credit commitment         2.125%  
Revolving Credit Facility | Line of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit $ 4,843     $ 4,843 $ 4,843  
Minimum required ratio of total assets to total indebtedness 1.5     1.5 1.5  
Principal amount of debt outstanding $ 2,246     $ 2,246 $ 2,246 1,507
Remaining amount available for borrowing under line of credit 2,511     2,511 2,511  
Principal amount of debt $ 4,843     $ 4,843 4,843 4,232
Revolving Credit Facility | Line of Credit | Secured Overnight Financing Rate (SOFR), Credit Spread Adjustment            
Debt Instrument [Line Items]            
Interest rate spread       0.10%    
Revolving Credit Facility | Line of Credit | Base Rate | Minimum            
Debt Instrument [Line Items]            
Interest rate spread       1.75%    
Revolving Credit Facility | Line of Credit | Base Rate | Maximum            
Debt Instrument [Line Items]            
Interest rate spread       1.875%    
Revolving Credit Facility | Line of Credit | Alternate Base Rate | Minimum            
Debt Instrument [Line Items]            
Interest rate spread     0.75% 0.75%    
Revolving Credit Facility | Line of Credit | Alternate Base Rate | Maximum            
Debt Instrument [Line Items]            
Interest rate spread     0.875% 0.875%    
Revolving Credit Facility | Line of Credit | London Interbank Offered Rate (LIBOR) Swap Rate | Minimum            
Debt Instrument [Line Items]            
Interest rate spread     1.75%      
Revolving Credit Facility | Line of Credit | London Interbank Offered Rate (LIBOR) Swap Rate | Maximum            
Debt Instrument [Line Items]            
Interest rate spread     1.875%      
Revolving Credit Facility | Line of Credit | Secured Overnight Financing Rate (SOFR)            
Debt Instrument [Line Items]            
Interest rate spread 1.75%          
Revolving Credit Facility | Line of Credit | Term loan tranche            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit $ 1,087     $ 1,087 1,087  
Principal amount of debt   $ 395        
Revolving Credit Facility | Line of Credit | Term loan tranche | Debt Instrument, Redemption, Period One            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 1,009     1,009 1,009  
Revolving Credit Facility | Line of Credit | Term loan tranche | Debt Instrument, Redemption, Period Two            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 28     28 28  
Revolving Credit Facility | Line of Credit | Term loan tranche | Debt Instrument, Redemption, Period Three            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 50     50 50  
Revolving Credit Facility | Line of Credit | Revolving tranche            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 3,756     3,756 3,756  
Revolving Credit Facility | Line of Credit | Revolving tranche | Debt Instrument, Redemption, Period One            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 3,499     3,499 3,499  
Revolving Credit Facility | Line of Credit | Revolving tranche | Debt Instrument, Redemption, Period Two            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 107     107 107  
Revolving Credit Facility | Line of Credit | Revolving tranche | Debt Instrument, Redemption, Period Three            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 150     150 150  
Revolving Credit Facility | Line of Credit | Letter of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity of line of credit 250     250 250  
Borrowing capacity increase under line of credit 50     50 50  
Principal amount of debt outstanding $ 86     $ 86 $ 86 $ 68
v3.22.4
DEBT - Schedule of Components of Debt Interest Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Line of Credit Facility [Line Items]      
Amortization of debt issuance costs $ 30 $ 29 $ 23
Net (amortization) accretion of original issue premium/discount (4) 2 8
Interest Expense, Total 455 372 317
Cash paid for interest expense 402 310 243
Convertible Debt      
Line of Credit Facility [Line Items]      
Stated interest expense 20 33 33
Amortization of debt issuance costs 1 3 3
Net (amortization) accretion of original issue premium/discount 2 6 5
Interest Expense, Total 23 42 41
Cash paid for interest expense 26 34 33
Senior Notes      
Line of Credit Facility [Line Items]      
Stated interest expense 269 234 168
Amortization of debt issuance costs 15 11 6
Net (amortization) accretion of original issue premium/discount (6) (4) 1
Accretion of purchase discount 0 0 1
Interest Expense, Total 278 241 176
Cash paid for interest expense 268 234 140
Revolving Credit Facility      
Line of Credit Facility [Line Items]      
Average outstanding balance 1,701 1,014 1,576
Revolving Credit Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Stated interest expense 71 21 43
Credit facility fees 10 17 7
Amortization of debt issuance costs 8 7 7
Interest Expense, Total 89 45 57
Cash paid for interest expense $ 62 $ 20 $ 41
Average stated interest rate 4.11% 2.14% 2.58%
Revolving Funding Facility      
Line of Credit Facility [Line Items]      
Average outstanding balance $ 820 $ 643 $ 761
Revolving Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Stated interest expense 31 15 20
Credit facility fees 5 6 5
Amortization of debt issuance costs 3 4 4
Interest Expense, Total 39 25 29
Cash paid for interest expense $ 29 $ 17 $ 19
Average stated interest rate 3.81% 2.33% 2.54%
SMBC Funding Facility      
Line of Credit Facility [Line Items]      
Average outstanding balance $ 414 $ 191 $ 390
SMBC Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Stated interest expense 15 4 10
Credit facility fees 2 6 1
Amortization of debt issuance costs 2 3 3
Interest Expense, Total 19 13 14
Cash paid for interest expense $ 14 $ 4 $ 10
Average stated interest rate 3.58% 2.05% 2.36%
BNP Funding Facility      
Line of Credit Facility [Line Items]      
Average outstanding balance $ 110 $ 15  
BNP Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Stated interest expense 5 1  
Credit facility fees 1 4  
Amortization of debt issuance costs 1 1  
Interest Expense, Total 7 6  
Cash paid for interest expense $ 3 $ 1  
Average stated interest rate 4.71% 3.46%  
v3.22.4
DEBT - Revolving Funding Facility Narrative (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Dec. 31, 2022
Jun. 29, 2022
Dec. 31, 2022
Dec. 28, 2021
Dec. 31, 2021
Debt Instrument [Line Items]          
Principal amount of debt outstanding $ 12,245   $ 12,245   $ 11,061
Revolving Funding Facility | Minimum          
Debt Instrument [Line Items]          
Percentage of unused portion of line of credit commitment     0.50% 0.50%  
Revolving Funding Facility | Maximum          
Debt Instrument [Line Items]          
Percentage of unused portion of line of credit commitment     1.25% 1.50%  
Revolving Funding Facility | Line of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity of line of credit 1,775   $ 1,775    
Principal amount of debt outstanding $ 800   $ 800   $ 762
Revolving Funding Facility | Line of Credit | Secured Overnight Financing Rate (SOFR), Credit Spread Adjustment          
Debt Instrument [Line Items]          
Interest rate spread 0.10%        
Revolving Funding Facility | Line of Credit | Base Rate          
Debt Instrument [Line Items]          
Interest rate spread 1.90% 1.00%   1.00%  
Revolving Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Interest rate spread   1.90%   2.00%  
v3.22.4
DEBT - SMBC Funding Facility Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
extensionOption
Dec. 31, 2022
USD ($)
extensionOption
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]      
Principal amount of debt outstanding $ 12,245 $ 12,245 $ 11,061
SMBC Funding Facility      
Debt Instrument [Line Items]      
Line of credit, borrowing capacity incremental increase limit 1,000 $ 1,000 1,000
SMBC Funding Facility | Minimum      
Debt Instrument [Line Items]      
Percentage of unused portion of line of credit commitment   0.50%  
SMBC Funding Facility | Maximum      
Debt Instrument [Line Items]      
Percentage of unused portion of line of credit commitment   1.00%  
SMBC Funding Facility | Line of Credit      
Debt Instrument [Line Items]      
Maximum borrowing capacity of line of credit $ 800 $ 800  
Number of debt maturity extensions | extensionOption 2 2  
Term of debt maturity extension option   1 year  
Principal amount of debt outstanding $ 451 $ 451 $ 401
SMBC Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Interest rate spread 1.75%    
SMBC Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR) | Minimum      
Debt Instrument [Line Items]      
Interest rate spread   1.75%  
SMBC Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR) | Maximum      
Debt Instrument [Line Items]      
Interest rate spread   2.00%  
SMBC Funding Facility | Line of Credit | Base Rate | Minimum      
Debt Instrument [Line Items]      
Interest rate spread   0.75%  
SMBC Funding Facility | Line of Credit | Base Rate | Maximum      
Debt Instrument [Line Items]      
Interest rate spread   1.00%  
v3.22.4
DEBT - BNP Funding Facility Narrative (Details)
 6 Months Ended 12 Months Ended 18 Months Ended
Dec. 31, 2022
USD ($)
Jun. 28, 2021
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]          
Principal amount of debt outstanding $ 12,245,000,000   $ 12,245,000,000 $ 12,245,000,000 $ 11,061,000,000
BNP Funding Facility | Minimum          
Debt Instrument [Line Items]          
Percentage of unused portion of line of credit commitment     0.00%    
BNP Funding Facility | Maximum          
Debt Instrument [Line Items]          
Percentage of unused portion of line of credit commitment     1.25%    
BNP Funding Facility | Line of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity of line of credit 300,000,000   $ 300,000,000 300,000,000  
Term of debt maturity extension option     1 year    
Principal amount of debt outstanding $ 245,000,000   $ 245,000,000 $ 245,000,000 $ 0
BNP Funding Facility | Line of Credit | Base Rate, During Reinvestment Period          
Debt Instrument [Line Items]          
Interest rate spread       1.80%  
Interest rate floor   0.0275      
BNP Funding Facility | Line of Credit | Base Rate, After Reinvestment Period          
Debt Instrument [Line Items]          
Interest rate spread       2.30%  
Interest rate floor   0.0325      
BNP Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Interest rate spread 1.80%        
Interest rate floor   0.0045   0.0000  
BNP Funding Facility | Line of Credit | Base Rate | Minimum          
Debt Instrument [Line Items]          
Interest rate spread   2.65%      
BNP Funding Facility | Line of Credit | Base Rate | Maximum          
Debt Instrument [Line Items]          
Interest rate spread   3.15%      
v3.22.4
DEBT - Convertible Unsecured Notes Narrative (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Feb. 28, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]        
Principal amount of debt   $ 16,221 $ 15,248  
Realized loss on extinguishment of debt   48 43 $ 0
2024 Convertible Notes | Convertible Debt        
Debt Instrument [Line Items]        
Principal amount of debt   $ 403 403  
Stated interest rate   4.625%    
Repurchase price, percentage of principal amount   100.00%    
Total unamortized debt issuance costs and unamortized discount   $ 4 8  
2022 Convertible Notes | Convertible Debt        
Debt Instrument [Line Items]        
Principal amount of debt   $ 0 388  
Stated interest rate 4.60%      
Total unamortized debt issuance costs and unamortized discount     $ 0  
Repayment of debt $ 388      
Realized loss on extinguishment of debt $ 48      
v3.22.4
DEBT - Schedule of Key Components of Convertible Notes (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]    
Principal amount of debt $ 16,221 $ 15,248
Carrying value of debt $ 12,210 11,020
2024 Convertible Notes | Convertible Debt    
Debt Instrument [Line Items]    
Conversion premium 0.150  
Closing stock price at issuance (in usd per share) | $ / shares $ 17.29  
Conversion price (in usd per share) | $ / shares $ 19.68  
Conversion rate (shares per one thousand dollar principal amount) 50.8028  
Principal amount of debt $ 403 403
Original issue discount, net of accretion (1)  
Debt issuance costs, net of amortization (3)  
Carrying value of debt $ 399 $ 395
Stated interest rate 4.625%  
Effective interest rate 5.10%  
v3.22.4
DEBT - Schedule of Key Components of Unsecured Notes (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Principal amount of debt $ 16,221 $ 15,248
2023 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 750 750
Interest Rate 3.50%  
2024 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 900 900
Interest Rate 4.20%  
March 2025 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 600 600
Interest Rate 4.25%  
July 2025 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 1,250 1,250
Interest Rate 3.25%  
January 2026 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 1,150 1,150
Interest Rate 3.875%  
July 2026 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 1,000 1,000
Interest Rate 2.15%  
2027 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 500 0
Interest Rate 2.875%  
2028 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 1,250 1,250
Interest Rate 2.875%  
2031 Notes | Senior Notes    
Debt Instrument [Line Items]    
Principal amount of debt $ 700 $ 700
Interest Rate 3.20%  
v3.22.4
DERIVATIVE INSTRUMENTS - Narrative (Details) - USD ($)
$ in Millions
 1 Months Ended
Dec. 31, 2017
Dec. 31, 2022
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Principal amount of debt   $ 16,221 $ 15,248
Interest rate swap      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, term of contract (in years) 3 years    
Notional amount $ 395    
Fixed interest rate (as a percent) 2.06%    
Interest rate swap | London Interbank Offered Rate (LIBOR)      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Basis spread on variable rate (as a percent) 1.75%    
Line of Credit | Revolving Credit Facility      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Principal amount of debt   $ 4,843 $ 4,232
Term loan tranche | Line of Credit | Revolving Credit Facility      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Principal amount of debt $ 395    
v3.22.4
DERIVATIVE INSTRUMENTS - Schedule of Derivative Instruments (Details)
€ in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions
Dec. 31, 2022
USD ($)
Dec. 31, 2022
CAD ($)
Dec. 31, 2022
EUR (€)
Dec. 31, 2022
GBP (£)
Dec. 31, 2022
NZD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
CAD ($)
Dec. 31, 2021
EUR (€)
Dec. 31, 2021
GBP (£)
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets $ 723         $ 702      
Gross Amount of Recognized Liabilities (744)         (714)      
Maturity Date 1/27/2023, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount   $ 264              
Maturity Date 1/27/2023, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 195                
Gross Amount of Recognized Liabilities (196)                
Maturity Date 1/18/2023, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount   242              
Maturity Date 1/18/2023, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 178                
Gross Amount of Recognized Liabilities (179)                
Maturity Date 1/27/2023, EUR                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount | €     € 158            
Maturity Date 1/27/2023, EUR | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 159                
Gross Amount of Recognized Liabilities (169)                
Maturity Date 1/27/2023, GBP                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount | £       £ 125          
Maturity Date 1/27/2023, GBP | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 145                
Gross Amount of Recognized Liabilities (151)                
Maturity Date 1/27/2023, NZD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount         $ 59        
Maturity Date 1/27/2023, NZD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 34                
Gross Amount of Recognized Liabilities (37)                
Maturity Date 1/27/2023, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount   $ 17              
Maturity Date 1/27/2023, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets 12                
Gross Amount of Recognized Liabilities $ (12)                
Maturity Date 1/28/2022, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount             $ 309    
Maturity Date 1/28/2022, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets           240      
Gross Amount of Recognized Liabilities           (245)      
Maturity Date 1/19/2022, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount             209    
Maturity Date 1/19/2022, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets           163      
Gross Amount of Recognized Liabilities           (165)      
Maturity Date 1/28/2022, EUR                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount | €               € 153  
Maturity Date 1/28/2022, EUR | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets           172      
Gross Amount of Recognized Liabilities           (174)      
Maturity Date 1/28/2022, GBP                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount | £                 £ 95
Maturity Date 1/28/2022, GBP | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets           126      
Gross Amount of Recognized Liabilities           (129)      
Maturity Date 1/28/2022, CAD                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Notional Amount             $ 2    
Maturity Date 1/28/2022, CAD | Accounts payable and other liabilities                  
Derivative Instruments and Hedging Activities Disclosures [Line Items]                  
Gross Amount of Recognized Assets           1      
Gross Amount of Recognized Liabilities           $ (1)      
v3.22.4
DERIVATIVE INSTRUMENTS - Schedule of Net Realized and Unrealized Gains (Losses) on Derivative Instruments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]      
Net realized gains (losses) on derivative instruments $ 62 $ 13 $ (15)
Net unrealized gains (losses) on derivative instruments (9) (14) 0
Interest rate swap      
Derivative Instruments, Gain (Loss) [Line Items]      
Net realized gains (losses) on derivative instruments 0 0 (6)
Net unrealized gains (losses) on derivative instruments 0 0 1
Foreign currency forward contract      
Derivative Instruments, Gain (Loss) [Line Items]      
Net realized gains (losses) on derivative instruments 62 13 (9)
Net unrealized gains (losses) on derivative instruments $ (9) $ (14) $ (1)
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Loan Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other Commitments [Line Items]    
Total unfunded commitments $ 57.0 $ 20.0
Revolving and delayed draw loan commitments    
Other Commitments [Line Items]    
Total commitments 2,915.8 2,732.5
Less: funded commitments (526.2) (352.3)
Total unfunded commitments 2,389.6 2,380.2
Less: commitments substantially at discretion of the Company 0.0 0.0
Less: unavailable commitments due to borrowing base or other covenant restrictions (13.0) (3.9)
Total net adjusted unfunded revolving and delayed draw commitments $ 2,376.6 2,376.3
Revolving and delayed draw loan commitments | Previously Reported    
Other Commitments [Line Items]    
Total unfunded commitments   2,381.0
Total net adjusted unfunded revolving and delayed draw commitments   $ 2,377.0
v3.22.4
COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other Commitments [Line Items]    
Letters of credit outstanding, amount $ 46  
Letters of credit outstanding, amount, year one 46  
Delayed Draw Loan Commitments    
Other Commitments [Line Items]    
Total commitments 1,229 $ 1,273
Letter of Credit    
Other Commitments [Line Items]    
Total commitments $ 366  
Minimum    
Other Commitments [Line Items]    
Remaining lease term (in years) 1 year  
Maximum    
Other Commitments [Line Items]    
Remaining lease term (in years) 4 years  
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Private Equity Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other Commitments [Line Items]    
Total unfunded commitments $ 57.0 $ 20.0
Private equity commitments    
Other Commitments [Line Items]    
Total commitments 119.8 110.9
Less: funded commitments (69.2) (67.6)
Total unfunded commitments 50.6 43.3
Less: commitments substantially at discretion of the Company (50.6) (43.3)
Total net adjusted unfunded revolving and delayed draw commitments $ 0.0 $ 0.0
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Components of Operating Lease Expense and Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]      
Operating lease costs $ 9 $ 10 $ 17
Less: sublease income (9) (9) (16)
Total operating lease costs 0 1 $ 1
Cash paid for amounts included in the measurement of operating lease liabilities 16 16  
Operating ROU assets obtained in exchange for operating lease liabilities $ 9 $ 11  
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Supplemental Balance Sheet Information (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]    
Operating lease ROU assets $ 20 $ 27
Operating lease liabilities $ 31 $ 43
Weighted average remaining lease term 3 years 1 month 6 days 3 years 8 months 12 days
Weighted average discount rate 4.20% 310.00%
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Future Minimum Lease Payments Under Operating Leases (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]    
2023 $ 16  
2024 6  
2025 6  
2026 6  
Total lease payments 34  
Less imputed interest (3)  
Operating lease liabilities $ 31 $ 43
v3.22.4
COMMITMENTS AND CONTINGENCIES - Schedule of Future Expected Rental Payments to be Received (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2023 $ 9
2024 4
2025 4
2026 4
Total $ 21
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value $ 21,779.8 $ 20,009.5
Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 21,361.0 19,908.0
Level 3 | Yield analysis | First lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 9,165.0 9,456.0
Level 3 | Yield analysis | Second lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 3,841.0 4,432.0
Level 3 | Yield analysis | Senior subordinated loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 1,021.0 889.0
Level 3 | Discounted cash flow analysis | Subordinated certificates of the SDLP    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 1,249.0 987.0
Level 3 | Discounted cash flow analysis | Ivy Hill Asset Management, L.P.    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 2,201.0 936.0
Level 3 | EV market multiple analysis | Preferred equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value 2,023.0 1,561.0
Level 3 | EV market multiple analysis | Other equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair Value $ 1,861.0 $ 1,647.0
Level 3 | Market yield | Yield analysis | Minimum | First lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 7.6 2
Level 3 | Market yield | Yield analysis | Minimum | Second lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 11 6.8
Level 3 | Market yield | Yield analysis | Minimum | Senior subordinated loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 8 7.1
Level 3 | Market yield | Yield analysis | Maximum | First lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 26.1 16.5
Level 3 | Market yield | Yield analysis | Maximum | Second lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 32.4 22.9
Level 3 | Market yield | Yield analysis | Maximum | Senior subordinated loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 16.3 27.8
Level 3 | Market yield | Yield analysis | Weighted Average | First lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 12.3 7.6
Level 3 | Market yield | Yield analysis | Weighted Average | Second lien senior secured loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 14.9 9.5
Level 3 | Market yield | Yield analysis | Weighted Average | Senior subordinated loans    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 12.9 11.5
Level 3 | Discount rate | Discounted cash flow analysis | Minimum | Subordinated certificates of the SDLP    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 12.4 8.8
Level 3 | Discount rate | Discounted cash flow analysis | Minimum | Ivy Hill Asset Management, L.P.    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 12.9 9.9
Level 3 | Discount rate | Discounted cash flow analysis | Maximum | Subordinated certificates of the SDLP    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 14.8 9.7
Level 3 | Discount rate | Discounted cash flow analysis | Maximum | Ivy Hill Asset Management, L.P.    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 25.7 27.9
Level 3 | Discount rate | Discounted cash flow analysis | Weighted Average | Subordinated certificates of the SDLP    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 13.5 9.3
Level 3 | Discount rate | Discounted cash flow analysis | Weighted Average | Ivy Hill Asset Management, L.P.    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 14.2 16.3
Level 3 | EBITDA multiple | EV market multiple analysis | Minimum | Preferred equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 2.6 3.2
Level 3 | EBITDA multiple | EV market multiple analysis | Minimum | Other equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 2.1 4.9
Level 3 | EBITDA multiple | EV market multiple analysis | Maximum | Preferred equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 40.6 64.4
Level 3 | EBITDA multiple | EV market multiple analysis | Maximum | Other equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 52.1 32.1
Level 3 | EBITDA multiple | EV market multiple analysis | Weighted Average | Preferred equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 15.7 16.5
Level 3 | EBITDA multiple | EV market multiple analysis | Weighted Average | Other equity    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unobservable Input 15.6 14.9
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS- Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Cash and cash equivalents $ 303.0 $ 372.0
Restricted cash 34.0 114.0
Total investments 21,779.8 20,009.5
Derivatives (21.0) (12.0)
Total unfunded capital commitments 57.0 20.0
Total    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Total investments 21,775.0 20,004.0
Level 1    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Cash and cash equivalents 303.0 372.0
Restricted cash 34.0 114.0
Total investments 54.0 0.0
Derivatives 0.0 0.0
Total unfunded capital commitments 0.0 0.0
Level 2    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Cash and cash equivalents 0.0 0.0
Restricted cash 0.0 0.0
Total investments 360.0 96.0
Derivatives (21.0) (12.0)
Total unfunded capital commitments 0.0 0.0
Level 3    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Cash and cash equivalents 0.0 0.0
Restricted cash 0.0 0.0
Total investments 21,361.0 19,908.0
Derivatives 0.0 0.0
Total unfunded capital commitments 57.0 20.0
Investments measured at net asset value    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Total investments $ 5.0 $ 5.0
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Changes in Investments that use Level 3 Inputs (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at the beginning $ 19,908 $ 15,506
Purchases 9,341 13,704
Sales (4,685) (5,573)
Repayments (3,009) (4,894)
PIK interest and dividends 312 250
Net accretion of discount on securities 12 16
Net transfers in and/or out of Level 3 (81) 44
Balance at the end 21,361 19,908
Debt and Equity Securities, Realized Gain (Loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized and unrealized gains $ 24 $ 258
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Net realized gains (losses): Net realized gains (losses):
Debt and Equity Securities, Unrealized Gain (Loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized and unrealized gains $ (461) $ 597
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Net unrealized gains (losses): Net unrealized gains (losses):
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS- Narrative (Details) - Level 3 - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Unrealized appreciation (depreciation) on investments $ (216) $ 165
Net unrealized gains (losses) $ (471) $ 649
v3.22.4
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding $ 12,245,000,000 $ 11,061,000,000
Fair value disclosures of long-term debt 12,210,000,000 11,020,000,000
Line of Credit | Revolving Credit Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 2,246,000,000 1,507,000,000
Line of Credit | Revolving Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 800,000,000 762,000,000
Line of Credit | SMBC Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 451,000,000 401,000,000
Line of Credit | BNP Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 245,000,000 0
Convertible Debt | 2022 Convertible Notes (principal amount outstanding of $0 and $388, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 0 388,000,000
Convertible Debt | 2024 Convertible Notes (principal amount outstanding of $403)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 403,000,000 403,000,000
Senior Notes | 2023 Notes (principal amount outstanding of $750)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 750,000,000 750,000,000
Senior Notes | 2024 Notes (principal amount outstanding of $900)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 900,000,000 900,000,000
Senior Notes | March 2025 Notes (principal amount outstanding of $600)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 600,000,000 600,000,000
Senior Notes | July 2025 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 1,250,000,000 1,250,000,000
Senior Notes | January 2026 Notes (principal amount outstanding of $1,150)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 1,150,000,000 1,150,000,000
Senior Notes | July 2026 Notes (principal amount outstanding of $1,000)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 1,000,000,000 1,000,000,000
Senior Notes | 2027 Notes (principal amount outstanding of $500 and $0, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 500,000,000 0
Senior Notes | 2028 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 1,250,000,000 1,250,000,000
Senior Notes | 2031 Notes (principal amount outstanding of $700)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Principal amount of debt outstanding 700,000,000 700,000,000
Carrying value    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 12,210,000,000 11,020,000,000
Carrying value | Revolving Credit Facility | Revolving Credit Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt   1,507,000,000
Carrying value | Revolving Credit Facility | Revolving Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt   762,000,000
Carrying value | Line of Credit | SMBC Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt   401,000,000
Carrying value | Line of Credit | BNP Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt   0
Carrying value | Revolving Credit Facility | Revolving Credit Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 2,246,000,000 1,507,000,000
Carrying value | Revolving Credit Facility | Revolving Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 800,000,000 762,000,000
Carrying value | Line of Credit | SMBC Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 451,000,000 401,000,000
Carrying value | Line of Credit | BNP Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 245,000,000 0
Carrying value | Convertible Debt | 2022 Convertible Notes (principal amount outstanding of $0 and $388, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 0 388,000,000
Carrying value | Convertible Debt | 2024 Convertible Notes (principal amount outstanding of $403)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 399,000,000 395,000,000
Carrying value | Senior Notes | 2023 Notes (principal amount outstanding of $750)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 750,000,000 748,000,000
Carrying value | Senior Notes | 2024 Notes (principal amount outstanding of $900)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 898,000,000 897,000,000
Carrying value | Senior Notes | March 2025 Notes (principal amount outstanding of $600)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 597,000,000 596,000,000
Carrying value | Senior Notes | July 2025 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,258,000,000 1,260,000,000
Carrying value | Senior Notes | January 2026 Notes (principal amount outstanding of $1,150)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,144,000,000 1,143,000,000
Carrying value | Senior Notes | July 2026 Notes (principal amount outstanding of $1,000)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 991,000,000 988,000,000
Carrying value | Senior Notes | 2027 Notes (principal amount outstanding of $500 and $0, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 494,000,000 0
Carrying value | Senior Notes | 2028 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,247,000,000 1,246,000,000
Carrying value | Senior Notes | 2031 Notes (principal amount outstanding of $700)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 690,000,000 689,000,000
Fair value    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 11,378,000,000 11,351,000,000
Fair value | Revolving Credit Facility | Revolving Credit Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 2,246,000,000 1,507,000,000
Fair value | Revolving Credit Facility | Revolving Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 800,000,000 762,000,000
Fair value | Line of Credit | SMBC Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 451,000,000 401,000,000
Fair value | Line of Credit | BNP Funding Facility    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 245,000,000 0
Fair value | Convertible Debt | 2022 Convertible Notes (principal amount outstanding of $0 and $388, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 0 433,000,000
Fair value | Convertible Debt | 2024 Convertible Notes (principal amount outstanding of $403)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 428,000,000 457,000,000
Fair value | Senior Notes | 2023 Notes (principal amount outstanding of $750)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 749,000,000 768,000,000
Fair value | Senior Notes | 2024 Notes (principal amount outstanding of $900)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 873,000,000 952,000,000
Fair value | Senior Notes | March 2025 Notes (principal amount outstanding of $600)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 570,000,000 637,000,000
Fair value | Senior Notes | July 2025 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,157,000,000 1,297,000,000
Fair value | Senior Notes | January 2026 Notes (principal amount outstanding of $1,150)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,059,000,000 1,213,000,000
Fair value | Senior Notes | July 2026 Notes (principal amount outstanding of $1,000)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 850,000,000 989,000,000
Fair value | Senior Notes | 2027 Notes (principal amount outstanding of $500 and $0, respectively)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 427,000,000 0
Fair value | Senior Notes | 2028 Notes (principal amount outstanding of $1,250)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt 1,007,000,000 1,248,000,000
Fair value | Senior Notes | 2031 Notes (principal amount outstanding of $700)    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value disclosures of long-term debt $ 516,000,000 $ 687,000,000
v3.22.4
STOCKHOLDERS’ EQUITY - Schedule of Common Shares Issued and Sold (Details)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
shares
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 50.2
Gross Proceeds $ 1,035.3
Underwriting Fees/Offering Expenses 34.0
Net Proceeds $ 1,001.3
Public offerings  
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 29.6
Gross Proceeds $ 613.5
Underwriting Fees/Offering Expenses 29.2
Net Proceeds $ 584.3
Average Offering Price Per Share (in dollars per share) | $ / shares $ 19.74
“At the market” offerings  
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 20.6
Gross Proceeds $ 421.8
Underwriting Fees/Offering Expenses 4.8
Net Proceeds $ 417.0
Average Offering Price Per Share (in dollars per share) | $ / shares $ 20.52
Over-allotment option one  
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 11.2
Average Offering Price Per Share (in dollars per share) | $ / shares $ 21.06
Over-allotment option two  
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 9.2
Average Offering Price Per Share (in dollars per share) | $ / shares $ 19.00
Over-allotment option three  
Subsidiary, Sale of Stock [Line Items]  
Number of Shares Issued (in shares) | shares 9.2
Average Offering Price Per Share (in dollars per share) | $ / shares $ 18.87
v3.22.4
STOCKHOLDERS’ EQUITY - Narrative (Details)
shares in Millions, $ in Millions
Dec. 31, 2022
USD ($)
shares
Subsidiary, Sale of Stock [Line Items]  
Authorized amount of stock repurchase program $ 500
Stock available for repurchase under the stock repurchase program $ 500
“At the market” offerings  
Subsidiary, Sale of Stock [Line Items]  
Maximum issuance of common stock | shares 500
Stock available for issuance $ 394
v3.22.4
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Earnings Per Share [Abstract]      
Net increase in stockholders’ equity resulting from operations $ 600 $ 1,567 $ 484
Adjustment for interest expense on 2014 Convertible Notes 17 0 0
Net increase in stockholders’ equity resulting from operations—diluted $ 617 $ 1,567 $ 484
Weighted average shares of common stock outstanding - basic (in shares) 498 446 424
Assumed conversion of 2024 Convertible Notes (in shares) 20 0 0
Weighted average shares of common stock outstanding - diluted (in shares) 518 446 424
Net increase in stockholders’ equity resulting from operations per share—basic (in usd per share) $ 1.21 $ 3.51 $ 1.14
Net increase in stockholders’ equity resulting from operations per share—diluted (in usd per share) $ 1.19 $ 3.51 $ 1.14
v3.22.4
INCOME AND EXCISE TAXES - Summary of Dividends Paid Per Common Share (Details) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]                    
Ordinary income (in dollars per share) $ 1.80 $ 1.62 $ 1.60              
Capital gains (in dollars per share) 0.07 0 0              
Total (in dollars per share) 1.87 1.62 1.60 $ 1.68 $ 1.54 $ 1.52 $ 1.52 $ 1.57 $ 1.57 $ 1.57
Dividend income per share (in dollars per share) $ 0.0582 $ 0.0461 $ 0.0157              
Dividend Concentration Risk | Dividends | Interest-Related Dividends                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Composition, percent of fair value 76.60% 84.60% 88.40%              
v3.22.4
INCOME AND EXCISE TAXES - Reconciliation (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Net increase in stockholders’ equity resulting from operations $ 600 $ 1,567 $ 484
Net unrealized losses (gains) on investments, foreign currency and other transactions 525 (586) 144
Income not currently taxable (232) (223) (147)
Income for tax but not book 90 162 133
Expenses not currently deductible 56 165 19
Expenses for tax but not book 0 0 (59)
Realized gain/loss difference (101) (199) 149
Taxable income 938 886 723
Dividend income not taxable until collected 175 91 67
Dividend income collected $ 71 $ 122 $ 1
v3.22.4
INCOME AND EXCISE TAXES - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Investments, Owned, Federal Income Tax Note [Line Items]                    
Capital loss carryforward $ 92.0                  
Carry forward of excess distributable earnings 675.0 $ 679.0 $ 471.0              
Excise tax expense 30.0 24.0 17.0              
Refund request for overpayment of excise taxes   1.0 1.0              
Tax cost basis 22,000.0 19,900.0                
Aggregate gross unrealized gain for federal tax purposes 1,000.0 800.0                
Aggregate gross unrealized loss for federal tax purposes 1,200.0 700.0                
Amortized Cost 22,043.0 19,810.0                
Tax reclassification of stockholders' equity, increase (decrease) 0.0 0.0 0.0              
Income tax expense, including excise tax 55.0 29.0 19.0              
Total stockholders’ equity 9,555.0 8,868.0 7,176.0 $ 7,467.0 $ 7,300.0 $ 7,098.0 $ 5,165.0 $ 5,173.0 $ 5,284.0 $ 4,904.0
Subsidiaries                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Income tax expense, including excise tax 25.0 6.0 2.0              
Capital in Excess of Par Value                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Tax reclassification of stockholders' equity, increase (decrease) (22.0) 40.0 (8.0)              
Total stockholders’ equity 9,556.0 8,553.0 7,656.0 7,760.0            
Accumulated Undistributed (Overdistributed) Earnings                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Tax reclassification of stockholders' equity, increase (decrease) 22.0 (40.0) 8.0              
Total stockholders’ equity (2.0) 315.0 $ (480.0) $ (293.0)            
Retained Earnings, Accumulated Undistributed Net Investment Income                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Total stockholders’ equity 519.0 253.0                
Retained Earnings, Accumulated Net Realized Losses                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Total stockholders’ equity (146.0) (88.0)                
Retained Earnings, Accumulated Net Unrealized Gains                    
Investments, Owned, Federal Income Tax Note [Line Items]                    
Total stockholders’ equity $ (375.0) $ 150.0                
v3.22.4
DIVIDENDS AND DISTRIBUTIONS - Schedule of Dividends Declared and Payable (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 29, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 30, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 30, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dividends Payable [Line Items]                              
Per share amount (in usd per share)                         $ 1.87 $ 1.62 $ 1.60
Total amount                         $ 941 $ 732 $ 679
October 25, 2022                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share) $ 0.48                            
Total amount $ 249                            
February 9, 2022                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share) $ 0.03                            
Total amount $ 15                            
July 26, 2022                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)   $ 0.43                          
Total amount   $ 219                          
February 9, 2022                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)   $ 0.03 $ 0.03 $ 0.42                      
Total amount   $ 15 $ 15 $ 205                      
April 26, 2022                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)     $ 0.42                        
Total amount     $ 208                        
February 9, 2022, Dividend 2                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)       $ 0.03                      
Total amount       $ 15                      
October 26, 2021                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)         $ 0.41                    
Total amount         $ 191                    
July 28, 2021                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)           $ 0.41                  
Total amount           $ 189                  
April 28, 2021                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)             $ 0.40                
Total amount             $ 177                
February 10, 2021                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)               $ 0.40              
Total amount               $ 175              
October 27, 2020                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)                 $ 0.40            
Total amount                 $ 169            
August 4, 2020                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)                   $ 0.40          
Total amount                   $ 169          
May 5, 2020                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)                     $ 0.40        
Total amount                     $ 169        
February 12, 2020                              
Dividends Payable [Line Items]                              
Per share amount (in usd per share)                       $ 0.40      
Total amount                       $ 172      
v3.22.4
DIVIDENDS AND DISTRIBUTIONS - Schedule of Dividend Reinvestment Plan Activity (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity [Abstract]      
Shares issued 1.5 1.9 0.0
Average issue price per share (in dollars per share) $ 19.58 $ 19.86 $ 0
Shares purchased by plan agent to satisfy dividends declared and payable during the period for stockholders $ 1.6 $ 0.0 $ 2.6
Average purchase price per share (in dollars per share) $ 17.85 $ 0 $ 13.76
v3.22.4
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 12 Months Ended
Nov. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]        
Underwriting Fees/Offering Expenses   $ 34.0    
Ares Capital Management        
Related Party Transaction [Line Items]        
Underwriting Fees/Offering Expenses $ 2.0      
Underwriting fees (in dollars per share) $ 0.24      
Controlled Affiliate | Expense Reimbursement        
Related Party Transaction [Line Items]        
Related party transaction amounts payable   5.0 $ 5.0 $ 7.0
Controlled Affiliate | Proprietary Portfolio Management Software Agreement        
Related Party Transaction [Line Items]        
Related party transaction amounts payable   $ 0.0 $ 0.0 $ 0.0
v3.22.4
FINANCIAL HIGHLIGHTS - Schedule of Financial Highlights (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Investment Company, Financial Highlights [Roll Forward]                      
Net asset value, beginning of period (in dollars per share) $ 18.96 $ 16.97 $ 17.32 $ 17.12 $ 16.65 $ 16.45 $ 16.46 $ 16.82 $ 16.46 $ 16.04  
Issuances of common stock (in dollars per share) 0.10 0.11 0 0.02 0 (0.01) 0 0.01 0 0.16  
Repurchases of common stock (in dollars per share) 0 0 0.11 0 0 0 0 (0.01) 0 0  
Deemed contribution from Ares Capital Management (in dollars per share)           0.13 0 0 0 0  
Issuances of convertible notes (in dollars per share)           0.04 0 0 0 0  
Net investment income for period (in dollars per share) 2.19 1.66 1.87 1.90 1.63 1.20 1.57 1.62 1.43 1.61  
Net realized and unrealized (losses) for period (in dollars per share) (0.98) 1.84 (0.73) (0.04) 0.38 0.36 (0.06) (0.41) 0.50 0.22  
Net increase in stockholders' equity (in dollars per share) 1.31 3.61 1.25 1.88 2.01 1.72 1.51 1.21 1.93 1.99  
Total distributions to stockholders (in dollars per share) (1.87) (1.62) (1.60) (1.68) (1.54) (1.52) (1.52) (1.57) (1.57) (1.57)  
Net asset value, end of period (in dollars per share) 18.40 18.96 16.97 17.32 17.12 16.65 16.45 16.46 16.82 16.46  
Per share market value at end of period (in dollars per share) $ 18.47 $ 21.19 $ 16.89 $ 18.65 $ 15.58 $ 15.72 $ 16.49 $ 14.25 $ 15.61 $ 17.77 $ 17.50
Total return based on market value (3.83%) 36.18% (0.86%) 30.49% 8.91% 4.55% 26.39% 1.35% (3.32%) 10.51%  
Total return based on net asset value 7.13% 21.97% 5.20% 12.14% 12.10% 10.53% 9.15% 7.16% 11.79% 11.41%  
Shares outstanding at end of period (in shares) 519 468 423 431 426 426 314 314 314 298  
Ratio/Supplemental Data:                      
Net assets at end of period $ 9,555 $ 8,868 $ 7,176 $ 7,467 $ 7,300 $ 7,098 $ 5,165 $ 5,173 $ 5,284 $ 4,904  
Ratio of operating expenses to average net assets 10.19% 13.05% 10.27% 9.92% 8.63% 9.45% 9.59% 9.51% 10.46% 10.03%  
Ratio of net investment income to average net assets 11.73% 9.19% 11.39% 11.01% 9.60% 7.65% 9.58% 9.75% 8.71% 9.86%  
Portfolio turnover rate 37.00% 60.00% 40.00% 38.00% 54.00% 51.00% 39.00% 42.00% 39.00% 27.00%  
v3.22.4
FINANCIAL HIGHLIGHTS - Schedule of Financial Highlights, Additional Information (Details) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Investment Company, Financial Highlights [Line Items]                      
Additional dividends declared (in dollars per share) $ 0.12     $ 0.08       $ 0.05 $ 0.05 $ 0.05  
Per share market value at end of period (in dollars per share) 18.47 $ 21.19 $ 16.89 18.65 $ 15.58 $ 15.72 $ 16.49 14.25 15.61 17.77 $ 17.50
Total distributions to stockholders (in dollars per share) $ 1.87 $ 1.62 $ 1.60 $ 1.68 $ 1.54 $ 1.52 $ 1.52 $ 1.57 $ 1.57 $ 1.57  
Ratio of operating expenses to average net assets 10.19% 13.05% 10.27% 9.92% 8.63% 9.45% 9.59% 9.51% 10.46% 10.03%  
Base management fees                      
Investment Company, Financial Highlights [Line Items]                      
Ratio of operating expenses to average net assets 3.27% 3.14% 3.10% 2.78% 2.49% 2.57% 2.64% 2.55% 2.51% 2.40%  
Income based fees and capital gains incentive fees, net of the fee waiver                      
Investment Company, Financial Highlights [Line Items]                      
Ratio of operating expenses to average net assets 1.61% 4.80% 1.80% 2.23% 2.24% 2.18% 2.29% 2.31% 2.90% 2.80%  
Income based fees and capital gains incentive fees excluding the fee waiver                      
Investment Company, Financial Highlights [Line Items]                      
Ratio of operating expenses to average net assets 1.61% 4.80% 1.80% 2.64% 2.79% 2.32% 2.29% 2.31% 2.90% 2.80%  
Cost of borrowing                      
Investment Company, Financial Highlights [Line Items]                      
Ratio of operating expenses to average net assets 4.89% 4.61% 4.54% 3.94% 3.33% 3.37% 3.58% 4.32% 4.24% 3.94%  
Other operating expenses                      
Investment Company, Financial Highlights [Line Items]                      
Ratio of operating expenses to average net assets 0.42% 0.50% 0.83% 0.97% 0.57% 1.33% 1.08% 0.33% 0.81% 0.89%  
v3.22.4
SUBSEQUENT EVENTS (Details)
$ / shares in Units, shares in Millions, $ in Millions
 1 Months Ended 6 Months Ended 12 Months Ended 18 Months Ended
Dec. 31, 2022
USD ($)
Jan. 31, 2023
USD ($)
$ / shares
shares
Jun. 28, 2021
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2022
USD ($)
Feb. 07, 2023
USD ($)
Subsequent Event [Line Items]            
Number of Shares Issued (in shares) | shares       50.2    
Net Proceeds       $ 1,001.3    
Authorized amount of stock repurchase program $ 500.0     500.0 $ 500.0  
Subsequent Event            
Subsequent Event [Line Items]            
Number of Shares Issued (in shares) | shares   12.1        
Average Offering Price Per Share (in dollars per share) | $ / shares   $ 18.53        
Net Proceeds   $ 223.4        
Authorized amount of stock repurchase program           $ 500.0
BNP Funding Facility | Line of Credit            
Subsequent Event [Line Items]            
Maximum borrowing capacity of line of credit $ 300.0     $ 300.0 $ 300.0  
BNP Funding Facility | Line of Credit | London Interbank Offered Rate (LIBOR)            
Subsequent Event [Line Items]            
Interest rate floor     0.0045   0.0000  
Interest rate spread 1.80%          
BNP Funding Facility | Line of Credit | Base Rate, During Reinvestment Period            
Subsequent Event [Line Items]            
Interest rate floor     0.0275      
Interest rate spread         1.80%  
BNP Funding Facility | Line of Credit | Base Rate, After Reinvestment Period            
Subsequent Event [Line Items]            
Interest rate floor     0.0325      
Interest rate spread         2.30%  
BNP Funding Facility | Line of Credit | Subsequent Event            
Subsequent Event [Line Items]            
Maximum borrowing capacity of line of credit   $ 500.0        
BNP Funding Facility | Line of Credit | Subsequent Event | Base Rate, During Reinvestment Period            
Subsequent Event [Line Items]            
Interest rate spread   2.30%        
BNP Funding Facility | Line of Credit | Subsequent Event | Base Rate, After Reinvestment Period            
Subsequent Event [Line Items]            
Interest rate spread   2.80%        
BNP Funding Facility | Line of Credit | Subsequent Event | Secured Overnight Financing Rate (SOFR)            
Subsequent Event [Line Items]            
Interest rate floor   0.0000        
Credit spread adjustment   0.10%