v3.25.1
Consolidated Schedule of Investments (Parenthetical)
 3 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Schedule of Investments [Line Items]      
Notional amount $ 4,745,750,000   $ 4,345,468,000
Fair value, net (2,955,000)   (76,295,000)
Upfront payments/receipts 0    
Change in unrealized appreciation (depreciation) $ 73,340,000   $ (94,945,000)
Non-qualifying assets as a percent of total assets 12.40%   13.20%
Restricted investments, fair value $ 1,540,000,000   $ 1,510,000,000
Restricted investments as a percentage of net assets 9.50%   10.40%
Unrealized gain (loss) for U.S. federal income tax purposes $ (23,100,000)   $ 52,600,000
Cost for income tax purposes 29,500,000,000   26,300,000,000
Unrealized loss for U.S. federal income tax purposes 267,200,000   182,900,000
Unrealized gain for U.S. federal income tax purposes 244,100,000   235,500,000
Funded Commitment     917,516,000
Unfunded Commitment 3,986,585,000   3,192,745,000
Fair Value [1]     (9,837,000)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [2],[3],[4],[5],[6] 26,378,894,000    
Net change in unrealized gain (loss) (60,810,000) $ 1,898,000  
Non-controlled, non-affiliated investments (57,865,000) (3,447,000)  
Ending balance 29,460,409,000   26,378,894,000 [2],[3],[4],[5],[6]
September 2027 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ 4,700,000   $ (700,000)
September 2027 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 7.75% [7],[8]   7.75% [9],[10]
September 2027 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.84% [7],[8],[11]   3.84% [9],[10]
Notional amount $ 600,000,000 [7],[8]   $ 600,000,000 [9],[10]
Fair value, net 4,739,000 [7],[8]   (703,000) [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 5,442,000 [7],[8]   (7,206,000) [9],[10]
AUD 2027 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ (17,100,000)   $ (20,700,000)
AUD 2027 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 6.50% [8],[12]   6.50% [10],[13]
AUD 2027 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.72% [8],[11],[12]   2.72% [10],[13]
Notional amount $ 44,719,000 [8],[12]   $ 43,960,000 [10],[13]
Fair value, net 114,000 [8],[12]   (47,000) [10],[13]
Upfront payments/receipts 0 [8],[12]   0 [10],[13]
Change in unrealized appreciation (depreciation) $ 161,000 [8],[12]   $ (47,000) [10],[13]
AUD 2027 Notes | Cross-currency swap | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 6.50% [7],[8],[14]   6.50% [9],[10],[15]
AUD 2027 Notes | Cross-currency swap | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.67% [7],[8],[11],[14]   2.67% [9],[10],[15]
Notional amount $ 251,031,000 [7],[8],[14]   $ 251,508,000 [9],[10],[15]
Fair value, net (17,246,000) [7],[8],[14]   (20,635,000) [9],[10],[15]
Upfront payments/receipts [7],[8],[14] 0    
Change in unrealized appreciation (depreciation) 3,389,000 [7],[8],[14]   (20,635,000) [9],[10],[15]
June 2028 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ 7,900,000   $ 500,000
June 2028 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 7.95% [7],[8]   7.95% [9],[10]
June 2028 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.79% [7],[8],[11]   3.79% [9],[10]
Notional amount $ 650,000,000 [7],[8]   $ 650,000,000 [9],[10]
Fair value, net 7,892,000 [7],[8]   502,000 [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 7,390,000 [7],[8]   502,000 [9],[10]
January 2029 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ 6,600,000   $ (400,000)
January 2029 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 7.75% [7],[8]   7.75% [9],[10]
January 2029 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.65% [7],[8],[11]   3.65% [9],[10]
Notional amount $ 550,000,000 [7],[8]   $ 550,000,000 [9],[10]
Fair value, net 6,581,000 [7],[8]   (399,000) [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 6,980,000 [7],[8]   (12,546,000) [9],[10]
September 2029 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ 18,600,000   $ 3,700,000
September 2029 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 6.60% [7],[8]   6.60% [9],[10]
September 2029 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.39% [7],[8],[11]   2.34% [9],[10]
Notional amount $ 900,000,000 [7],[8]   $ 500,000,000 [9],[10]
Fair value, net 18,632,000 [7],[8]   3,745,000 [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 14,887,000 [7],[8]   3,745,000 [9],[10]
March 2030 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ (24,300,000)   $ (44,500,000)
March 2030 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 5.80% [7],[8]   5.80% [9],[10]
March 2030 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.62% [7],[8],[11]   2.62% [9],[10]
Notional amount $ 1,000,000,000 [7],[8]   $ 1,000,000,000 [9],[10]
Fair value, net (24,315,000) [7],[8]   (44,519,000) [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 20,204,000 [7],[8]   (44,519,000) [9],[10]
March 2031 Notes | Interest rate swaps | Unsecured debt investments      
Schedule of Investments [Line Items]      
Fair value, net $ 600,000   $ (14,200,000)
March 2031 Notes | Interest rate swaps | Designated as Hedging Instrument      
Schedule of Investments [Line Items]      
Fixed interest rate 6.65% [7],[8]   6.65% [9],[10]
March 2031 Notes | Interest rate swaps | Designated as Hedging Instrument | Unsecured debt investments      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.90% [7],[8],[11]   2.90% [9],[10]
Notional amount $ 750,000,000 [7],[8]   $ 750,000,000 [9],[10]
Fair value, net 648,000 [7],[8]   (14,239,000) [9],[10]
Upfront payments/receipts [7],[8] 0    
Change in unrealized appreciation (depreciation) 14,887,000 [7],[8]   (14,239,000) [9],[10]
Non-controlled, affiliated investments      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 8,248,000 78,406,000 78,406,000
Gross Additions 44,000 [16]   25,765,000 [17]
Gross Reductions 0 [18]   (100,694,000) [19]
Net change in unrealized gain (loss) (82,000) 1,343,000 (6,093,000)
Non-controlled, non-affiliated investments 0   10,864,000
Ending balance 8,210,000   8,248,000
Payment-in-kind (“PIK”) dividend income 0   486,000
Interest and PIK Income 64,000   170,000
Other income 0   0
Controlled, affiliated investments      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 985,744,000 573,550,000 573,550,000
Gross Additions 40,827,000 [16]   639,094,000 [20]
Gross Reductions (78,274,000) [19]   (247,628,000) [21]
Net change in unrealized gain (loss) (6,275,000) 4,626,000 20,728,000
Non-controlled, non-affiliated investments 0   0
Ending balance 942,022,000   985,744,000
Payment-in-kind (“PIK”) dividend income 24,887,000   78,462,000
Interest and PIK Income 2,765,000   10,005,000
Other income 0   0
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 75,112,000 [22] 64,839,000 [23] 64,839,000 [23]
Gross Additions 2,429,000 [16],[22]   10,236,000 [20],[23]
Gross Reductions (85,000) [19],[22]   (3,475,000) [21],[23]
Net change in unrealized gain (loss) 4,997,000 [22]   3,512,000 [23]
Non-controlled, non-affiliated investments 0 [22]   0 [23]
Ending balance [22] 82,453,000   75,112,000
Payment-in-kind (“PIK”) dividend income 0 [22]   0 [23]
Interest and PIK Income 1,359,000 [22]   5,035,000 [23]
Other income 0 [22]   0 [23]
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC, First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[25],[26],[27] 45,106,000    
Ending balance 47,354,000 [28],[29],[30]   45,106,000 [24],[25],[26],[27]
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Funded Commitment     26,763,000
Unfunded Commitment     59,032,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[26],[27],[31],[32],[33] 30,006,000    
Ending balance [25],[26],[27],[31],[32],[33]     30,006,000
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Funded Commitment 26,517,000    
Unfunded Commitment 56,604,000    
Fair Value [34] 0    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [28],[30],[35],[36],[37] 35,099,000    
Investment, Identifier [Axis]: AAM Series 2.1 Aviation Feeder, LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [23] 77,680,000 78,476,000 78,476,000
Gross Additions 11,279,000 [16],[22]   50,774,000 [20],[23]
Gross Reductions (938,000) [19],[22]   (57,983,000) [21],[23]
Net change in unrealized gain (loss) 3,761,000 [22]   6,413,000 [23]
Non-controlled, non-affiliated investments 0 [22]   0 [23]
Ending balance 91,782,000 [22]   77,680,000 [23]
Payment-in-kind (“PIK”) dividend income 0 [22]   0 [23]
Interest and PIK Income 1,406,000 [22]   4,970,000 [23]
Other income 0 [22]   0 [23]
Investment, Identifier [Axis]: AAM Series 2.1 Aviation Feeder, LLC, First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[25],[26],[27] 45,630,000    
Ending balance 56,908,000 [28],[29],[30]   45,630,000 [24],[25],[26],[27]
Investment, Identifier [Axis]: AAM Series 2.1 Aviation Feeder, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Funded Commitment 24,663,000   25,601,000
Unfunded Commitment 16,166,000   27,444,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[26],[27],[31],[32],[33] 32,050,000    
Ending balance $ 34,874,000 [28],[30],[35],[36],[37]   $ 32,050,000 [25],[26],[27],[31],[32],[33]
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.50% [38]   7.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 32,640,000    
Ending balance 32,724,000 [38]   $ 32,640,000 [39]
Investment, Identifier [Axis]: ACR Group Borrower, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 731,000   733,000
Unfunded Commitment 100,000   100,000
Fair Value [34] 0    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [1] $ 0    
Ending balance [1]     $ 0
Investment, Identifier [Axis]: ACR Group Borrower, LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[38]   4.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 1,886,000    
Ending balance $ 1,886,000 [36],[38]   $ 1,886,000 [25],[39]
Investment, Identifier [Axis]: ACR Group Borrower, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.25% [38]   4.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 3,911,000    
Ending balance $ 3,921,000 [38]   $ 3,911,000 [39]
Investment, Identifier [Axis]: ACR Group Borrower, LLC, First lien senior secured loan 3      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 855,000    
Ending balance $ 853,000 [38]   $ 855,000 [39]
Investment, Identifier [Axis]: ACR Group Borrower, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 4.25%    
Funded Commitment $ 25,000   0
Unfunded Commitment 850,000   875,000
Fair Value 0 [34]   $ (15,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 14,000    
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc. (dba Culligan), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 46,266,000    
Ending balance 55,686,000 [40],[41]   $ 46,266,000 [42],[43],[44]
Investment, Identifier [Axis]: AI Titan Parent, Inc. (dba Prometheus Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 6,792,000   6,792,000
Fair Value $ (34,000) [34]   $ (34,000) [1]
Investment, Identifier [Axis]: AI Titan Parent, Inc. (dba Prometheus Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40]   4.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 33,623,000    
Ending balance 33,623,000 [40]   $ 33,623,000 [43]
Investment, Identifier [Axis]: AI Titan Parent, Inc. (dba Prometheus Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,245,000   4,245,000
Fair Value $ (42,000) [34]   $ (42,000) [1]
Investment, Identifier [Axis]: AQ Carver Buyer, Inc. (dba CoAdvantage), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [41],[45]   5.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 22,163,000    
Ending balance 21,914,000 [41],[45]   $ 22,163,000 [39],[44]
Investment, Identifier [Axis]: ASP Conair Holdings LP, Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 1,009,000    
Ending balance $ 1,069,000 [35],[37]   $ 1,009,000 [31],[32]
Investment, Identifier [Axis]: AWP Group Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[40]   4.75% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 41,824,000    
Ending balance 42,591,000 [36],[40]   $ 41,824,000 [25],[43]
Investment, Identifier [Axis]: AWP Group Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 1,161,000   290,000
Unfunded Commitment 4,644,000   5,515,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Accelerate Topco Holdings, LLC, Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 4,379,000    
Ending balance $ 4,379,000 [35],[37]   $ 4,379,000 [31],[32]
Investment, Identifier [Axis]: Access CIG, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.25% [38],[41]   5.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 79,695,000    
Ending balance $ 78,736,000 [38],[41]   $ 79,695,000 [39],[44]
Investment, Identifier [Axis]: Acrisure, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 92,158,000    
Ending balance $ 58,566,000 [40],[41]   $ 92,158,000 [43],[44]
Investment, Identifier [Axis]: Acrisure, LLC, Unsecured notes      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 8.50% [29],[30],[41]   8.50% [24],[27],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[27],[44] $ 19,123,000    
Ending balance $ 19,114,000 [29],[30],[41]   $ 19,123,000 [24],[27],[44]
Investment, Identifier [Axis]: Activate Holdings (US) Corp. (dba Absolute Software), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [30],[38]   5.25% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 5,711,000    
Ending balance 5,696,000 [30],[38]   $ 5,711,000 [25],[27],[39]
Investment, Identifier [Axis]: Activate Holdings (US) Corp. (dba Absolute Software), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 352,000   352,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Advancion Holdings, LLC (fka Aruba Investments Holdings, LLC), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   4.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 19,064,000    
Ending balance $ 18,444,000 [40],[41]   $ 19,064,000 [43],[44]
Investment, Identifier [Axis]: Advancion Holdings, LLC (fka Aruba Investments Holdings, LLC), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.75% [40]   7.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 39,118,000    
Ending balance 37,729,000 [40]   $ 39,118,000 [43],[44]
Investment, Identifier [Axis]: Aerosmith Bidco 1 Limited (dba Audiotonix), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 108,341,000   108,341,000
Fair Value $ 0 [34]   $ (85,000) [1]
Investment, Identifier [Axis]: Aerosmith Bidco 1 Limited (dba Audiotonix), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [30],[38]   5.25% [27],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43] $ 340,496,000    
Ending balance 341,349,000 [30],[38]   $ 340,496,000 [27],[43]
Investment, Identifier [Axis]: Aerosmith Bidco 1 Limited (dba Audiotonix), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 44,919,000   44,919,000
Fair Value $ 0 [34]   $ (112,000) [1]
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [40]   5.75% [25],[33],[43]
Funded Commitment     $ 43,250,000
Unfunded Commitment     2,446,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[43] $ 43,250,000    
Ending balance $ 45,581,000 [40]   $ 43,250,000 [25],[33],[43]
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 146,960,000    
Ending balance $ 146,581,000 [40]   $ 146,960,000 [25],[43]
Investment, Identifier [Axis]: Allied Benefit Systems Intermediate LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 20,850,000    
Ending balance 20,812,000 [38]   $ 20,850,000 [43]
Investment, Identifier [Axis]: AlphaSense, Inc., First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 716,000   716,000
Fair Value (5,000) [34]   (7,000) [1]
Investment, Identifier [Axis]: AlphaSense, Inc., First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 707,000   707,000
Fair Value $ (5,000) [34]   $ (7,000) [1]
Investment, Identifier [Axis]: AlphaSense, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [38]   6.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 3,498,000    
Ending balance 3,507,000 [38]   $ 3,498,000 [39]
Investment, Identifier [Axis]: AlphaSense, LLC, Series E Preferred Shares      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 760,000    
Ending balance 800,000 [35],[37]   760,000 [31],[32]
Investment, Identifier [Axis]: AmSpec Parent, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,333,000   5,333,000
Fair Value $ 0 [34]   $ (13,000) [1]
Investment, Identifier [Axis]: AmSpec Parent, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.25% [38],[41]   4.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 34,493,000    
Ending balance 34,601,000 [38],[41]   $ 34,493,000 [43]
Investment, Identifier [Axis]: Amergin Asset Management, LLC, Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 1,555,000    
Ending balance 1,816,000 [35],[37]   1,555,000 [31],[32]
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     15,740,000
Unfunded Commitment     16,715,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 34,240,000    
Fair Value [34] (86,000)    
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 15,700,000    
Unfunded Commitment 16,715,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[45]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 201,032,000    
Ending balance 302,480,000 [36],[45]   $ 201,032,000 [25],[39]
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 33,393,000   16,273,000
Fair Value $ (167,000) [34]   $ (81,000) [1]
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 231,397,000    
Ending balance 230,819,000 [38]   $ 231,397,000 [25],[39]
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 16,528,000   16,528,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Anchor Packaging, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 49,959,000    
Ending balance $ 49,551,000 [40],[41]   $ 49,959,000 [43],[44]
Investment, Identifier [Axis]: Apex Group Treasury LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [30],[38],[41]   4.00% [27],[39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[44] $ 124,224,000    
Ending balance 122,708,000 [30],[38],[41]   $ 124,224,000 [27],[39],[44]
Investment, Identifier [Axis]: Appfire Technologies, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,215,000   5,562,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Appfire Technologies, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,688,000   2,688,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Appfire Technologies, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 12,761,000    
Ending balance 13,955,000 [38]   $ 12,761,000 [25],[39]
Investment, Identifier [Axis]: Appfire Technologies, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   117,000
Unfunded Commitment 1,633,000   1,516,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Aptean Acquiror, Inc. (dba Aptean), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     1,419,000
Unfunded Commitment     3,974,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Aptean Acquiror, Inc. (dba Aptean), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 1,727,000    
Unfunded Commitment 2,247,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: Aptean Acquiror, Inc. (dba Aptean), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 40,254,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Aptean Acquiror, Inc. (dba Aptean), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 88,128,000    
Ending balance 89,867,000 [36],[38]   $ 88,128,000 [25],[39]
Investment, Identifier [Axis]: Aptean Acquiror, Inc. (dba Aptean), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,497,000   7,282,000
Fair Value 0 [34]   $ (18,000) [1]
Investment, Identifier [Axis]: Aramsco, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 4,678,000    
Fair Value [34] $ (316,000)    
Investment, Identifier [Axis]: Aramsco, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 41,999,000    
Ending balance 42,233,000 [38]   $ 41,999,000 [39]
Investment, Identifier [Axis]: Arctic Holdco, LLC (dba Novvia Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 5,089,000    
Unfunded Commitment 12,665,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Arctic Holdco, LLC (dba Novvia Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   6.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 20,610,000    
Ending balance $ 160,085,000 [36],[38]   $ 20,610,000 [25],[43]
Investment, Identifier [Axis]: Arctic Holdco, LLC (dba Novvia Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.25%    
Funded Commitment $ 5,681,000    
Unfunded Commitment 6,155,000    
Fair Value [34] 0    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 5,622,000    
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.75% [30],[41],[45]   3.75% [27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 55,275,000    
Ending balance 54,247,000 [30],[41],[45]   $ 55,275,000 [27],[39]
Investment, Identifier [Axis]: Armstrong Bidco Limited, First lien senior secured GBP delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[27],[46]     5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[46] $ 50,385,000    
Ending balance [25],[27],[46]     $ 50,385,000
Investment, Identifier [Axis]: Armstrong Bidco Limited, First lien senior secured GBP term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[47] 5.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[47] $ 51,928,000    
Investment, Identifier [Axis]: Artifact Bidco, Inc. (dba Avetta), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 3,793,000   3,793,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Artifact Bidco, Inc. (dba Avetta), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   4.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 15,420,000    
Ending balance 15,420,000 [38]   $ 15,420,000 [39]
Investment, Identifier [Axis]: Artifact Bidco, Inc. (dba Avetta), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,710,000   2,710,000
Fair Value $ (14,000) [34]   $ (14,000) [1]
Investment, Identifier [Axis]: Ascend Buyer, LLC (dba PPC Flexible Packaging), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 78,779,000    
Ending balance $ 82,409,000 [38]   $ 78,779,000 [25],[39]
Investment, Identifier [Axis]: Ascend Buyer, LLC (dba PPC Flexible Packaging), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38]   6.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 8,820,000    
Ending balance 8,798,000 [38]   $ 8,820,000 [39]
Investment, Identifier [Axis]: Ascend Buyer, LLC (dba PPC Flexible Packaging), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     5.75%
Funded Commitment 0   $ 1,702,000
Unfunded Commitment 8,187,000   3,404,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 1,702,000    
Ending balance [25],[39]     $ 1,702,000
Investment, Identifier [Axis]: Ascensus Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 11,963,000    
Ending balance 21,633,000 [40],[41]   $ 11,963,000 [43]
Investment, Identifier [Axis]: Associations Finance, Inc., Unsecured notes      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24] 164,538,000    
Ending balance 170,400,000 [29]   164,538,000 [24]
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 7,860,000   5,288,000
Unfunded Commitment 23,792,000   26,398,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [36],[38]   6.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 425,811,000    
Ending balance 433,448,000 [36],[38]   $ 425,811,000 [25],[39]
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 18,788,000   12,695,000
Unfunded Commitment 6,601,000   12,695,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: AssuredPartners, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 59,931,000    
Ending balance $ 59,738,000 [40],[41]   $ 59,931,000 [43],[44]
Investment, Identifier [Axis]: Asurion, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 3.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 19,960,000    
Investment, Identifier [Axis]: Asurion, LLC, Second lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40],[41]   5.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 100,148,000    
Ending balance $ 96,102,000 [40],[41]   $ 100,148,000 [43],[44]
Investment, Identifier [Axis]: Asurion, LLC, Second lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40],[41]   5.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 41,602,000    
Ending balance $ 40,321,000 [40],[41]   $ 41,602,000 [43],[44]
Investment, Identifier [Axis]: Athenahealth Group Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 26,088,000    
Ending balance $ 25,692,000 [40],[41]   $ 26,088,000 [43],[44]
Investment, Identifier [Axis]: Aurelia Netherlands B.V., First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [30],[48]   5.75% [27],[49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[49] $ 56,695,000    
Ending balance $ 59,440,000 [30],[48]   $ 56,695,000 [27],[49]
Investment, Identifier [Axis]: Avalara, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   6.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 70,455,000    
Ending balance $ 62,206,000 [40],[41]   $ 70,455,000 [39]
Investment, Identifier [Axis]: Avalara, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     7,045,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Azalea TopCo, Inc. (dba Press Ganey), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 61,238,000    
Ending balance $ 64,679,000 [40],[41]   $ 61,238,000 [43],[44]
Investment, Identifier [Axis]: Azuria Water Solutions, Inc. (f/k/a Aegion Corporation), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41],[50]   3.75% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 37,069,000    
Ending balance $ 36,492,000 [40],[41],[50]   $ 37,069,000 [42],[43],[44]
Investment, Identifier [Axis]: Azurite Intermediate Holdings, Inc. (dba Alteryx, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [40]   6.50% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 17,820,000    
Ending balance 17,820,000 [40]   $ 17,820,000 [25],[43]
Investment, Identifier [Axis]: Azurite Intermediate Holdings, Inc. (dba Alteryx, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,995,000   1,995,000
Fair Value $ (15,000) [34]   $ (15,000) [1]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc. (dba Imperial-Dade), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 63,831,000    
Ending balance $ 91,736,000 [40],[41]   $ 63,831,000 [43],[44]
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[40]   5.75% [25],[33],[43]
Funded Commitment $ 4,557,000   $ 4,568,000
Unfunded Commitment 21,926,000   21,926,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[43] 10,752,000    
Ending balance $ 10,725,000 [36],[40]   $ 10,752,000 [25],[33],[43]
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 52,023,000    
Ending balance $ 51,888,000 [38]   $ 52,023,000 [39]
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[40]   5.75% [25],[43]
Funded Commitment $ 4,293,000   $ 3,103,000
Unfunded Commitment 362,000   1,552,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 3,045,000    
Ending balance $ 4,235,000 [36],[40]   $ 3,045,000 [25],[43]
Investment, Identifier [Axis]: BCPE Pequod Buyer, Inc. (dba Envestnet), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 114,164,000    
Ending balance 112,894,000 [38],[41]   $ 114,164,000 [43],[44]
Investment, Identifier [Axis]: BCPE Pequod Buyer, Inc. (dba Envestnet), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 16,634,000   16,634,000
Fair Value $ (250,000) [34]   $ (83,000) [1]
Investment, Identifier [Axis]: BCTO BSI Buyer, Inc. (dba Buildertrend), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [38]   6.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 1,201,000    
Ending balance 1,198,000 [38]   $ 1,201,000 [39]
Investment, Identifier [Axis]: BCTO BSI Buyer, Inc. (dba Buildertrend), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 161,000   161,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: BCTO WIW Holdings, Inc. (dba When I Work), Class A Common Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 3,116,000    
Ending balance 2,948,000 [35],[37]   3,116,000 [31],[32]
Investment, Identifier [Axis]: BEHP Co-Investor II, L.P., LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 1,297,000    
Ending balance $ 1,297,000 [30],[35],[37]   $ 1,297,000 [27],[31],[32]
Investment, Identifier [Axis]: BEP Intermediate Holdco, LLC (dba Buyers Edge Platform), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 32,011,000    
Ending balance 31,753,000 [40]   $ 32,011,000 [43],[44]
Investment, Identifier [Axis]: BTRS HOLDINGS INC. (dba Billtrust), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     913,000
Unfunded Commitment     4,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: BTRS HOLDINGS INC. (dba Billtrust), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 12,165,000    
Ending balance [25],[33],[39]     $ 12,165,000
Investment, Identifier [Axis]: BTRS HOLDINGS INC. (dba Billtrust), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     434,000
Unfunded Commitment     723,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: BTRS Holdings Inc. (dba Billtrust), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 31,851,000    
Investment, Identifier [Axis]: BTRS Holdings Inc. (dba Billtrust), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,531,000    
Unfunded Commitment 2,531,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: BW Holding, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39],[44]     4.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] 19,104,000    
Ending balance [39],[44]     $ 19,104,000
Investment, Identifier [Axis]: Baker Tilly Advisory Group, L.P., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     14,940,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Baker Tilly Advisory Group, L.P., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     4.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 98,507,000    
Ending balance [43]     $ 98,507,000
Investment, Identifier [Axis]: Baker Tilly Advisory Group, L.P., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     20,935,000
Fair Value [1]     $ (105,000)
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 14,940,000    
Fair Value [34] $ (37,000)    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 97,766,000    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 20,935,000    
Fair Value [34] $ (209,000)    
Investment, Identifier [Axis]: Balrog Acquisition, Inc. (dba Bakemark), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 13,600,000    
Ending balance $ 13,511,000 [40],[41]   $ 13,600,000 [39],[44]
Investment, Identifier [Axis]: Balrog Acquisition, Inc. (dba Bakemark), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [40]   7.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 6,000,000    
Ending balance $ 6,000,000 [40]   $ 6,000,000 [39]
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [48]   5.25% [49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [49] $ 63,781,000    
Ending balance 66,371,000 [48]   $ 63,781,000 [49]
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 26,912,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     26,912,000
Fair Value [1]     0
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment     8,941,000
Unfunded Commitment     6,173,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 107,931,000    
Ending balance 113,865,000 [38]   $ 107,931,000 [25],[39]
Investment, Identifier [Axis]: Bamboo US BidCo LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 20,128,000   20,128,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Barracuda Networks, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38],[41]   4.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 13,058,000    
Ending balance $ 12,177,000 [38],[41]   $ 13,058,000 [39],[44]
Investment, Identifier [Axis]: Barracuda Networks, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [38]   7.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 74,600,000    
Ending balance $ 70,637,000 [38]   $ 74,600,000 [39]
Investment, Identifier [Axis]: Barracuda Parent, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 6.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 32,325,000    
Investment, Identifier [Axis]: Bayshore Intermediate #2, L.P. (dba Boomi), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.88% [38]   6.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 212,779,000    
Ending balance 214,589,000 [38]   $ 212,779,000 [39]
Investment, Identifier [Axis]: Bayshore Intermediate #2, L.P. (dba Boomi), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 18,336,000   18,336,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Belmont Buyer, Inc. (dba Valenz), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,083,000   11,083,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Belmont Buyer, Inc. (dba Valenz), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [38]   6.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 68,619,000    
Ending balance $ 68,446,000 [38]   $ 68,619,000 [25],[39]
Investment, Identifier [Axis]: Belmont Buyer, Inc. (dba Valenz), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.21% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 42,728,000    
Ending balance $ 42,621,000 [38]   $ 42,728,000 [39]
Investment, Identifier [Axis]: Belmont Buyer, Inc. (dba Valenz), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [36],[45]   6.50% [25],[51]
Funded Commitment $ 2,217,000   $ 2,217,000
Unfunded Commitment 4,433,000   4,433,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[51] 2,217,000    
Ending balance $ 2,217,000 [36],[45]   $ 2,217,000 [25],[51]
Investment, Identifier [Axis]: Berlin Packaging, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41]   3.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 101,391,000    
Ending balance 94,252,000 [40],[41]   $ 101,391,000 [39],[44]
Investment, Identifier [Axis]: Bird Holding B.V. (fka MessageBird Holding B.V.), Extended Series C Warrants      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 12,000    
Ending balance $ 12,000 [30],[35],[37]   $ 12,000 [27],[31],[32]
Investment, Identifier [Axis]: Blackhawk Network Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   5.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 75,453,000    
Ending balance $ 122,427,000 [40],[41]   $ 75,453,000 [43],[44]
Investment, Identifier [Axis]: Blast Bidco Inc. (dba Bazooka Candy Brands), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38]   6.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 35,552,000    
Ending balance 35,463,000 [38]   $ 35,552,000 [39]
Investment, Identifier [Axis]: Blast Bidco Inc. (dba Bazooka Candy Brands), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,179,000   4,179,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Blue Owl Credit SLF LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 4,294,000 0 0
Gross Additions 1,231,000 [16]   11,781,000 [20]
Gross Reductions 0 [19]   (7,510,000) [21]
Net change in unrealized gain (loss) (198,000)   23,000
Non-controlled, non-affiliated investments 0   0
Ending balance 5,327,000   4,294,000
Payment-in-kind (“PIK”) dividend income 166,000   80,000
Interest and PIK Income 0   0
Other income 0   0
Investment, Identifier [Axis]: Blue Owl Credit SLF LLC, LLC Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [26],[27],[32],[52] 4,294,000    
Ending balance $ 5,327,000 [28],[30],[37],[53]   $ 4,294,000 [26],[27],[32],[52]
Investment, Identifier [Axis]: Boxer Parent Company Inc. (f/k/a BMC), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 63,718,000    
Ending balance $ 66,981,000 [38],[41]   $ 63,718,000 [39],[44]
Investment, Identifier [Axis]: Bracket Intermediate Holding Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.25% [38],[41]   4.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 49,621,000    
Ending balance 49,251,000 [38],[41]   $ 49,621,000 [39],[44]
Investment, Identifier [Axis]: BradyPLUS Holdings, LLC (f/k/a BradyIFS Holdings, LLC), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 1,107,000   1,109,000
Unfunded Commitment 4,049,000   4,049,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: BradyPLUS Holdings, LLC (f/k/a BradyIFS Holdings, LLC), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 176,385,000    
Ending balance $ 175,943,000 [36],[38]   $ 176,385,000 [25],[39]
Investment, Identifier [Axis]: Brightway Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[38]   6.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 19,390,000    
Ending balance 21,080,000 [36],[38]   $ 19,390,000 [25],[39]
Investment, Identifier [Axis]: Brightway Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[43]     6.50%
Funded Commitment 590,000   $ 842,000
Unfunded Commitment 1,515,000   1,263,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 832,000    
Ending balance [25],[43]     $ 832,000
Investment, Identifier [Axis]: Broadcast Music, Inc. (fka Otis Merger Sub, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 34,060,000    
Ending balance [43]     $ 34,060,000
Investment, Identifier [Axis]: Broadcast Music, Inc. (fka Otis Merger Sub, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     6,271,000
Fair Value [1]     $ (47,000)
Investment, Identifier [Axis]: Broadstreet Partners, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 13,634,000    
Ending balance 13,437,000 [40],[41]   $ 13,634,000 [43],[44]
Investment, Identifier [Axis]: Brooklyn Lender Co-Invest 2, L.P. (dba Boomi), Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 2,596,000    
Ending balance $ 2,596,000 [35],[37]   $ 2,596,000 [31],[32]
Investment, Identifier [Axis]: CCI BUYER, INC. (dba Consumer Cellular), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[42],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[42],[44] $ 39,573,000    
Ending balance 39,474,000 [38],[41]   $ 39,573,000 [39],[42],[44]
Investment, Identifier [Axis]: CCM Midco, LLC (f/k/a Cresset Capital Management, LLC), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 7,612,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: CCM Midco, LLC (f/k/a Cresset Capital Management, LLC), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 4,478,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: CCM Midco, LLC (f/k/a Cresset Capital Management, LLC), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 5.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 15,554,000    
Investment, Identifier [Axis]: CCM Midco, LLC (f/k/a Cresset Capital Management, LLC), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 2,239,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: CD&R Value Building Partners I, L.P. (dba Belron), LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32],[52] 38,072,000    
Ending balance 41,607,000 [30],[35],[37],[53]   38,072,000 [27],[31],[32],[52]
Investment, Identifier [Axis]: CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 6,190,000   6,205,000
Unfunded Commitment 8,530,000   8,530,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 51,648,000    
Ending balance 51,519,000 [36],[38]   $ 51,648,000 [25],[39]
Investment, Identifier [Axis]: CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 3,692,000   3,692,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: CMG HoldCo, LLC (dba Crete United), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 10,141,000   10,141,000
Fair Value (51,000) [34]   (101,000) [1]
Investment, Identifier [Axis]: CMG HoldCo, LLC (dba Crete United), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 14,384,000   14,420,000
Unfunded Commitment 10,916,000   10,916,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: CMG HoldCo, LLC (dba Crete United), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[45]   4.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 53,021,000    
Ending balance 54,147,000 [36],[45]   $ 53,021,000 [25],[39]
Investment, Identifier [Axis]: CMG HoldCo, LLC (dba Crete United), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,344,000   1,442,000
Unfunded Commitment 6,310,000   7,211,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: CP PIK DEBT ISSUER, LLC (dba CivicPlus, LLC), Unsecured notes      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [51] 20,135,000    
Ending balance $ 20,135,000 [45]   $ 20,135,000 [51]
Investment, Identifier [Axis]: CPM Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [40],[41],[50]   4.50% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 47,906,000    
Ending balance 38,667,000 [40],[41],[50]   $ 47,906,000 [42],[43],[44]
Investment, Identifier [Axis]: CPM Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,000,000   5,000,000
Fair Value $ (93,000) [34]   $ (161,000) [1]
Investment, Identifier [Axis]: CSC MKG Topco LLC (dba Medical Knowledge Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [40]   5.75% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 97,782,000    
Ending balance 97,777,000 [40]   $ 97,782,000 [25],[43]
Investment, Identifier [Axis]: CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 12,046,000   12,046,000
Fair Value $ 0 [34]   $ (30,000) [1]
Investment, Identifier [Axis]: CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 349,962,000    
Ending balance 349,962,000 [40]   $ 349,962,000 [43]
Investment, Identifier [Axis]: CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 30,115,000   30,115,000
Fair Value 0 [34]   $ (75,000) [1]
Investment, Identifier [Axis]: Cambrex Corporation, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 33,294,000    
Fair Value [34] $ (166,000)    
Investment, Identifier [Axis]: Cambrex Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 220,842,000    
Investment, Identifier [Axis]: Cambrex Corporation, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 29,133,000    
Fair Value [34] $ (291,000)    
Investment, Identifier [Axis]: Canadian Hospital Specialties Limited, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[54]   4.50% [25],[27],[55]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[55] $ 3,261,000    
Ending balance $ 3,266,000 [30],[54]   $ 3,261,000 [25],[27],[55]
Investment, Identifier [Axis]: Canadian Hospital Specialties Limited, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[36],[54]   4.50% [25],[27],[55]
Funded Commitment $ 254,000   $ 255,000
Unfunded Commitment 158,000   158,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[55] 242,000    
Ending balance 244,000 [30],[36],[54]   242,000 [25],[27],[55]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,789,000   1,789,000
Fair Value $ (2,000) [34]   $ 0 [1]
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [40]   4.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 85,110,000    
Ending balance $ 84,716,000 [40]   $ 85,110,000 [43]
Investment, Identifier [Axis]: Cast & Crew Payroll, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40],[41],[50]   3.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 28,833,000    
Ending balance $ 28,601,000 [40],[41],[50]   $ 28,833,000 [43],[44]
Investment, Identifier [Axis]: Catalis Intermediate, Inc. (fka GovBrands Intermediate, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 9,922,000    
Ending balance 9,924,000 [36],[38]   $ 9,922,000 [25],[39]
Investment, Identifier [Axis]: Catalis Intermediate, Inc. (fka GovBrands Intermediate, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 303,000   303,000
Unfunded Commitment 577,000   577,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Central Parent Inc. (dba CDK Global Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 9,168,000    
Ending balance $ 7,944,000 [38],[41]   $ 9,168,000 [39],[44]
Investment, Identifier [Axis]: Certinia Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 44,118,000    
Ending balance 44,118,000 [38]   $ 44,118,000 [39]
Investment, Identifier [Axis]: Certinia Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,412,000   4,412,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Chariot Buyer LLC (dba Chamberlain Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 3,934,000    
Ending balance $ 28,546,000 [40],[41]   $ 3,934,000 [43],[44]
Investment, Identifier [Axis]: Charter NEX US, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 25,806,000    
Ending balance 25,578,000 [40],[41]   $ 25,806,000 [43],[44]
Investment, Identifier [Axis]: Chrome Investors LP, LP Interest      
Schedule of Investments [Line Items]      
Funded Commitment 7,339,000    
Unfunded Commitment 1,835,000    
Fair Value [34] 0    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[35],[36],[37] 7,339,000    
Investment, Identifier [Axis]: Chrysaor Bidco s.à r.l. (dba AlterDomus), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 689,000   689,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Chrysaor Bidco s.à r.l. (dba AlterDomus), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [30],[38],[41]   3.50% [27],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] $ 9,375,000    
Ending balance $ 9,293,000 [30],[38],[41]   $ 9,375,000 [27],[43],[44]
Investment, Identifier [Axis]: Cirque du Soleil Canada, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [30],[38],[41],[50]   3.75% [27],[39],[42],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[42],[44] $ 36,423,000    
Ending balance 41,673,000 [30],[38],[41],[50]   $ 36,423,000 [27],[39],[42],[44]
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 1,061,000    
Fair Value [34] $ (3,000)    
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 3.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 16,306,000    
Investment, Identifier [Axis]: CivicPlus, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 28,605,000    
Ending balance 28,605,000 [38]   $ 28,605,000 [25],[39]
Investment, Identifier [Axis]: CivicPlus, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,244,000   2,244,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Cloud Software Group, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [38],[41]   3.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 80,180,000    
Ending balance $ 78,958,000 [38],[41]   $ 80,180,000 [39],[44]
Investment, Identifier [Axis]: Cloud Software Group, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38],[41]   3.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 55,416,000    
Ending balance $ 54,594,000 [38],[41]   $ 55,416,000 [39],[44]
Investment, Identifier [Axis]: Clover Holdings 2, LLC (dba Cohesity), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 69,123,000    
Ending balance 68,949,000 [38],[41]   $ 69,123,000 [39]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings, Inc. (dba Novolex), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 86,000    
Unfunded Commitment 2,320,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings, Inc. (dba Novolex), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 3.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 131,771,000    
Investment, Identifier [Axis]: Cohnreznick Advisory LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 8,459,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Cohnreznick Advisory LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 4.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 36,359,000    
Investment, Identifier [Axis]: Color Intermediate, LLC (dba ClaimsXten), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 9,073,000    
Ending balance 9,050,000 [38]   $ 9,073,000 [39]
Investment, Identifier [Axis]: Computer Services, Inc. (dba CSI), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 25,566,000   25,566,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Computer Services, Inc. (dba CSI), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 52,518,000    
Ending balance $ 52,383,000 [38]   $ 52,518,000 [25],[39]
Investment, Identifier [Axis]: Computer Services, Inc. (dba CSI), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 18,371,000    
Ending balance $ 18,371,000 [38]   $ 18,371,000 [39]
Investment, Identifier [Axis]: Conair Holdings LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40],[41]   3.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 40,223,000    
Ending balance $ 38,511,000 [40],[41]   $ 40,223,000 [43],[44]
Investment, Identifier [Axis]: Conair Holdings LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.50% [40]   7.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 20,728,000    
Ending balance $ 19,880,000 [40]   $ 20,728,000 [43]
Investment, Identifier [Axis]: Confluent Health, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 19,652,000    
Ending balance $ 18,909,000 [40]   $ 19,652,000 [43]
Investment, Identifier [Axis]: Confluent Medical Technologies, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 79,095,000    
Ending balance $ 76,419,000 [38]   $ 79,095,000 [39],[44]
Investment, Identifier [Axis]: ConnectWise, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38],[41]   3.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 29,550,000    
Ending balance $ 44,198,000 [38],[41]   $ 29,550,000 [39],[44]
Investment, Identifier [Axis]: Continental Finance Company, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 8.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 13,118,000    
Investment, Identifier [Axis]: Controlled/affiliated - equity commitments      
Schedule of Investments [Line Items]      
Funded Commitment    
Unfunded Commitment    
Fair Value [34]    
Investment, Identifier [Axis]: CoolSys, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [41],[45]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 13,359,000    
Ending balance $ 12,331,000 [41],[45]   $ 13,359,000 [39]
Investment, Identifier [Axis]: CoreLogic Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41],[50]   3.50% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 23,508,000    
Ending balance 23,279,000 [40],[41],[50]   $ 23,508,000 [42],[43],[44]
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 23,639,000   23,639,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 112,617,000    
Ending balance 112,333,000 [40]   $ 112,617,000 [43]
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 14,183,000   14,183,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40],[41],[50]   3.75% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 17,028,000    
Ending balance $ 16,758,000 [40],[41],[50]   $ 17,028,000 [42],[43],[44]
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [40]   6.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 38,007,000    
Ending balance $ 37,561,000 [40]   $ 38,007,000 [43]
Investment, Identifier [Axis]: Cotiviti, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 2.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 39,002,000    
Investment, Identifier [Axis]: Cotiviti, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 2.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 4,881,000    
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,174,000   2,174,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 24,222,000    
Ending balance 24,161,000 [38]   $ 24,222,000 [39]
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,664,000   1,664,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Covetrus, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38],[41]   5.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 9,888,000    
Ending balance $ 33,787,000 [38],[41]   $ 9,888,000 [39],[44]
Investment, Identifier [Axis]: Covetrus, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 9.25% [38]   9.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 155,600,000    
Ending balance $ 155,600,000 [38]   $ 155,600,000 [39]
Investment, Identifier [Axis]: Creek Parent, Inc. (dba Catalent), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 289,423,000    
Ending balance 293,106,000 [40]   $ 289,423,000 [43]
Investment, Identifier [Axis]: Creek Parent, Inc. (dba Catalent), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 42,297,000   42,297,000
Fair Value (211,000) [34]   (740,000) [1]
Investment, Identifier [Axis]: Cresset Capital Management, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     7,612,000
Fair Value [1]     0
Investment, Identifier [Axis]: Cresset Capital Management, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     4,478,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Cresset Capital Management, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 15,593,000    
Ending balance [43]     $ 15,593,000
Investment, Identifier [Axis]: Cresset Capital Management, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     2,239,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Crewline Buyer, Inc. (dba New Relic), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [40]   6.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 169,555,000    
Ending balance 169,984,000 [40]   $ 169,555,000 [43]
Investment, Identifier [Axis]: Crewline Buyer, Inc. (dba New Relic), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 17,226,000   17,226,000
Fair Value $ (172,000) [34]   $ (215,000) [1]
Investment, Identifier [Axis]: D4C Dental Brands, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38],[50]   4.50% [39],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[42] $ 116,820,000    
Ending balance 134,882,000 [38],[50]   $ 116,820,000 [39],[42]
Investment, Identifier [Axis]: D4C Dental Brands, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 13,102,000   11,346,000
Fair Value (131,000) [34]   (113,000) [1]
Investment, Identifier [Axis]: DCG ACQUISITION CORP. (dba DuBois Chemical), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 15,899,000   15,899,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: DCG ACQUISITION CORP. (dba DuBois Chemical), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   4.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 94,600,000    
Ending balance 94,600,000 [38]   $ 94,600,000 [43]
Investment, Identifier [Axis]: DCG ACQUISITION CORP. (dba DuBois Chemical), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 15,899,000   15,899,000
Fair Value (79,000) [34]   (79,000) [1]
Investment, Identifier [Axis]: Databricks, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 16,531,000   16,531,000
Fair Value $ 0 [34]   $ (83,000) [1]
Investment, Identifier [Axis]: Databricks, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [40]   4.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 73,102,000    
Ending balance $ 73,102,000 [40]   $ 73,102,000 [43]
Investment, Identifier [Axis]: Dealer Tire Financial, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 30,339,000    
Ending balance $ 30,112,000 [40]   $ 30,339,000 [43],[44]
Investment, Identifier [Axis]: Dealer Tire Financial, LLC, Unsecured notes      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 8.00% [29],[41],[50]   8.00% [24],[42],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[42],[44] $ 55,014,000    
Ending balance $ 54,689,000 [29],[41],[50]   $ 55,014,000 [24],[42],[44]
Investment, Identifier [Axis]: Deerfield Dakota Holdings, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [38],[41]   3.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 94,900,000    
Ending balance $ 91,801,000 [38],[41]   $ 94,900,000 [39],[44]
Investment, Identifier [Axis]: Deerfield Dakota Holdings, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [38]   6.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 20,430,000    
Ending balance 20,455,000 [38]   $ 20,430,000 [39],[44]
Investment, Identifier [Axis]: Delta TopCo, Inc. (dba Infoblox, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39],[44]     3.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 29,035,000    
Ending balance [39],[44]     $ 29,035,000
Investment, Identifier [Axis]: Delta TopCo, Inc. (dba Infoblox, Inc.), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38],[41]   5.25% [44],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [44],[51] $ 33,429,000    
Ending balance 32,927,000 [38],[41]   $ 33,429,000 [44],[51]
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 15,182,000    
Unfunded Commitment 55,309,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 195,728,000    
Ending balance 209,880,000 [36],[38]   $ 195,728,000 [25],[39]
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 9,963,000   9,963,000
Fair Value (25,000) [34]   0 [1]
Investment, Identifier [Axis]: Denali Holding, LP (dba Summit Companies), Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 12,122,000    
Ending balance $ 12,122,000 [35],[37]   $ 12,122,000 [31],[32]
Investment, Identifier [Axis]: Derby Buyer LLC (dba Delrin), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 57,691,000    
Ending balance $ 56,915,000 [40],[41]   $ 57,691,000 [43],[44]
Investment, Identifier [Axis]: Dessert Holdings, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41],[50]   4.00% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 18,613,000    
Ending balance $ 22,734,000 [40],[41],[50]   $ 18,613,000 [42],[43],[44]
Investment, Identifier [Axis]: Diamond Insure Bidco (dba Acturis), First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.25% [30],[56]   4.25% [27],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[57] $ 3,178,000    
Ending balance $ 3,332,000 [30],[56]   $ 3,178,000 [27],[57]
Investment, Identifier [Axis]: Diamond Insure Bidco (dba Acturis), First lien senior secured GBP term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[47]   4.50% [27],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[46] $ 12,563,000    
Ending balance 13,013,000 [30],[47]   $ 12,563,000 [27],[46]
Investment, Identifier [Axis]: Diamond Mezzanine 24 LLC (dba United Risk), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 24,700,000   24,700,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Diamond Mezzanine 24 LLC (dba United Risk), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 92,162,000    
Ending balance 92,393,000 [38]   $ 92,162,000 [39]
Investment, Identifier [Axis]: Diamond Mezzanine 24 LLC (dba United Risk), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [58]     4.00%
Funded Commitment 0   $ 6,175,000
Unfunded Commitment 6,175,000   0
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [58] $ 6,144,000    
Ending balance [58]     $ 6,144,000
Investment, Identifier [Axis]: Diamondback Acquisition, Inc. (dba Sphera), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [40]   5.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 46,157,000    
Ending balance $ 46,153,000 [40]   $ 46,157,000 [43]
Investment, Identifier [Axis]: Disco Parent, Inc. (dba Duck Creek Technologies, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.50% [38]   7.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 1,056,000    
Ending balance 1,056,000 [38]   $ 1,056,000 [39]
Investment, Identifier [Axis]: Disco Parent, Inc. (dba Duck Creek Technologies, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 91,000   91,000
Fair Value (1,000) [34]   (1,000) [1]
Investment, Identifier [Axis]: Dodge Construction Network Holdings, L.P., Class A-2 Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 20,000    
Ending balance $ 20,000 [35],[37]   $ 20,000 [31],[32]
Investment, Identifier [Axis]: Dodge Construction Network Holdings, L.P., Series A Preferred Units      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 8.25% [37],[38]   8.25% [32],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [32],[39] $ 2,000    
Ending balance $ 2,000 [37],[38]   $ 2,000 [32],[39]
Investment, Identifier [Axis]: Dodge Construction Network LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 8,388,000    
Ending balance $ 8,367,000 [38]   $ 8,388,000 [39]
Investment, Identifier [Axis]: Dodge Construction Network LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [38]   6.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 7,409,000    
Ending balance 7,391,000 [38]   $ 7,409,000 [39]
Investment, Identifier [Axis]: Dresser Utility Solutions, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 7,537,000   7,537,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Dresser Utility Solutions, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 82,083,000    
Ending balance 81,876,000 [40]   $ 82,083,000 [43]
Investment, Identifier [Axis]: Dresser Utility Solutions, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 10,552,000   10,552,000
Fair Value (26,000) [34]   (26,000) [1]
Investment, Identifier [Axis]: DuraServ LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,842,000   24,034,000
Unfunded Commitment 69,582,000   24,418,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: DuraServ LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [36],[40]   4.50% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 153,915,000    
Ending balance 180,593,000 [36],[40]   $ 153,915,000 [25],[43]
Investment, Identifier [Axis]: DuraServ LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 24,256,000   24,256,000
Fair Value $ (121,000) [34]   $ (121,000) [1]
Investment, Identifier [Axis]: E2open, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 5,153,000    
Ending balance 5,105,000 [40],[41]   $ 5,153,000 [43],[44]
Investment, Identifier [Axis]: EAGLE FAMILY FOODS GROUP LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 174,982,000    
Ending balance [43]     $ 174,982,000
Investment, Identifier [Axis]: EET Buyer, Inc. (dba e-Emphasys), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,523,000   8,523,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: EET Buyer, Inc. (dba e-Emphasys), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 40,171,000    
Ending balance 40,068,000 [38]   $ 40,171,000 [25],[39]
Investment, Identifier [Axis]: EET Buyer, Inc. (dba e-Emphasys), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 3,387,000   3,387,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: EOS Finco S.A.R.L, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [30],[35],[38],[41],[59]   6.00% [27],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[51] $ 44,512,000    
Ending balance $ 33,840,000 [30],[35],[38],[41],[59]   $ 44,512,000 [27],[51]
Investment, Identifier [Axis]: EP Purchaser, LLC (dba Entertainment Partners), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38],[41]   4.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 29,670,000    
Ending balance $ 29,498,000 [38],[41]   $ 29,670,000 [39],[44]
Investment, Identifier [Axis]: Eagle Family Foods Group LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 5.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 174,279,000    
Investment, Identifier [Axis]: Eagle Family Foods Group LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 20,344,000   20,344,000
Fair Value $ 0 [34]   $ (102,000) [1]
Investment, Identifier [Axis]: Einstein Parent, Inc. (dba Smartsheet), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 6.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 76,073,000    
Investment, Identifier [Axis]: Einstein Parent, Inc. (dba Smartsheet), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 7,949,000    
Fair Value [34] $ (79,000)    
Investment, Identifier [Axis]: Element Materials Technology, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [30],[38],[41]   3.75% [27],[39],[42],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[42],[44] $ 27,509,000    
Ending balance 27,226,000 [30],[38],[41]   $ 27,509,000 [27],[39],[42],[44]
Investment, Identifier [Axis]: Elliott Alto Co-Investor Aggregator L.P., LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 10,170,000    
Ending balance $ 10,752,000 [30],[35],[37]   $ 10,170,000 [27],[31],[32]
Investment, Identifier [Axis]: Ellucian Holdings Inc. (f/k/a Sophia, L.P.), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40],[41]   4.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 10,167,000    
Ending balance $ 10,133,000 [40],[41]   $ 10,167,000 [43],[44]
Investment, Identifier [Axis]: Ellucian Holdings Inc. (f/k/a Sophia, L.P.), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 14,813,000    
Ending balance $ 19,676,000 [40],[41]   $ 14,813,000 [43],[44]
Investment, Identifier [Axis]: Endries Acquisition, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     8,048,000
Fair Value [1]     $ (60,000)
Investment, Identifier [Axis]: Endries Acquisition, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 100,014,000    
Ending balance $ 107,730,000 [40]   $ 100,014,000 [25],[43]
Investment, Identifier [Axis]: Engage Debtco Limited, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.03% [30],[38],[50]   7.25% [27],[39],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[42] $ 31,836,000    
Ending balance $ 32,182,000 [30],[38],[50]   $ 31,836,000 [27],[39],[42]
Investment, Identifier [Axis]: Engage Debtco Limited, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.18% [30],[38]   5.93% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 81,223,000    
Ending balance $ 81,794,000 [30],[38]   $ 81,223,000 [25],[27],[39]
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc. (dba Duravant), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [38],[41]   3.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 13,253,000    
Ending balance $ 9,060,000 [38],[41]   $ 13,253,000 [39],[44]
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc. (dba Duravant), Second lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [38],[50]   6.50% [39],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[42] $ 37,181,000    
Ending balance $ 37,181,000 [38],[50]   $ 37,181,000 [39],[42]
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc. (dba Duravant), Second lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38],[50]   6.00% [39],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[42] $ 19,112,000    
Ending balance $ 19,016,000 [38],[50]   $ 19,112,000 [39],[42]
Investment, Identifier [Axis]: Ensemble RCM, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 12,498,000    
Ending balance $ 12,366,000 [38],[41]   $ 12,498,000 [39],[44]
Investment, Identifier [Axis]: Entrata, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [40]   5.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 4,442,000    
Ending balance 4,431,000 [40]   $ 4,442,000 [43]
Investment, Identifier [Axis]: Entrata, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 513,000   513,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: EresearchTechnology, Inc. (dba Clario), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 1,666,000    
Unfunded Commitment 31,659,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: EresearchTechnology, Inc. (dba Clario), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 29,326,000    
Fair Value [34] $ (147,000)    
Investment, Identifier [Axis]: EresearchTechnology, Inc. (dba Clario), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 176,349,000    
Investment, Identifier [Axis]: EresearchTechnology, Inc. (dba Clario), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 16,663,000    
Fair Value [34] (167,000)    
Investment, Identifier [Axis]: Essential Services Holding Corporation (dba Turnpoint), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 6,970,000   6,970,000
Fair Value $ (35,000) [34]   $ (35,000) [1]
Investment, Identifier [Axis]: Essential Services Holding Corporation (dba Turnpoint), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 35,193,000    
Ending balance $ 35,193,000 [38]   $ 35,193,000 [43]
Investment, Identifier [Axis]: Essential Services Holding Corporation (dba Turnpoint), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.00%    
Funded Commitment $ 697,000   0
Unfunded Commitment 3,660,000   4,357,000
Fair Value 0 [34]   (44,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] 653,000    
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   727,000
Unfunded Commitment 26,059,000   3,671,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 1,570,000    
Ending balance [39]     $ 1,570,000
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 727,000    
Ending balance [25],[33],[39]     $ 727,000
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   6.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 25,805,000    
Ending balance 209,802,000 [38]   $ 25,805,000 [25],[39]
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 12,968,000   676,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Evolution Parent, LP (dba SIAA), LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 307,000    
Ending balance 333,000 [35],[37]   307,000 [31],[32]
Investment, Identifier [Axis]: Ex Vivo Parent Inc. (dba OB Hospitalist), First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 41,508,000    
Ending balance 43,654,000 [38]   41,508,000 [39]
Investment, Identifier [Axis]: FR Flow Control CB LLC (dba Trillium Flow Technologies), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 28,307,000   28,307,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: FR Flow Control CB LLC (dba Trillium Flow Technologies), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [30],[38]   5.25% [27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 140,472,000    
Ending balance 140,121,000 [30],[38]   $ 140,472,000 [27],[39]
Investment, Identifier [Axis]: FR Flow Control CB LLC (dba Trillium Flow Technologies), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 23,160,000   23,160,000
Fair Value (174,000) [34]   (174,000) [1]
Investment, Identifier [Axis]: Faraday Buyer, LLC (dba MacLean Power Systems), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 14,307,000   14,307,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Faraday Buyer, LLC (dba MacLean Power Systems), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38]   6.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 133,564,000    
Ending balance $ 133,241,000 [38]   $ 133,564,000 [39]
Investment, Identifier [Axis]: Fiesta Purchaser, Inc. (dba Shearer's Foods), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 74,611,000    
Ending balance 54,146,000 [40],[41]   $ 74,611,000 [43],[44]
Investment, Identifier [Axis]: Fiesta Purchaser, Inc. (dba Shearer's Foods), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 16,615,000   16,615,000
Fair Value (42,000) [34]   (3,000) [1]
Investment, Identifier [Axis]: Fifth Season Investments LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 223,274,000 156,794,000 156,794,000
Gross Additions 21,027,000 [16]   115,658,000 [20]
Gross Reductions 0 [19]   (70,093,000) [21]
Net change in unrealized gain (loss) 982,000   20,915,000
Non-controlled, non-affiliated investments 0   0
Ending balance 245,283,000   223,274,000
Payment-in-kind (“PIK”) dividend income 8,061,000   23,832,000
Interest and PIK Income 0   0
Other income 0   0
Investment, Identifier [Axis]: Fifth Season Investments LLC, Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [26],[32],[60] 223,274,000    
Ending balance $ 245,283,000 [28],[37],[61]   $ 223,274,000 [26],[32],[60]
Investment, Identifier [Axis]: Filtration Group Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 25,558,000    
Ending balance $ 25,337,000 [40],[41]   $ 25,558,000 [43],[44]
Investment, Identifier [Axis]: Finastra USA, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.25% [30],[36],[45]   7.25% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 174,158,000    
Ending balance 167,414,000 [30],[36],[45]   $ 174,158,000 [25],[27],[39]
Investment, Identifier [Axis]: Finastra USA, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 4,298,000   10,631,000
Unfunded Commitment 12,794,000   6,461,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 9,190,000    
Ending balance 9,167,000 [38]   $ 9,190,000 [39]
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,320,000   1,320,000
Fair Value $ (7,000) [34]   $ (7,000) [1]
Investment, Identifier [Axis]: Formerra, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.25% [40]   7.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 5,298,000    
Ending balance 5,272,000 [40]   $ 5,298,000 [25],[43]
Investment, Identifier [Axis]: Formerra, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 526,000   526,000
Fair Value $ (8,000) [34]   $ (7,000) [1]
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 65,284,000    
Ending balance $ 64,951,000 [38]   $ 65,284,000 [25],[39]
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Funded Commitment $ 3,036,000   $ 2,361,000
Unfunded Commitment 3,711,000   4,385,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 2,260,000    
Ending balance $ 2,918,000 [36],[38]   $ 2,260,000 [25],[39]
Investment, Identifier [Axis]: Foundation Building Materials, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 19,547,000    
Ending balance $ 17,986,000 [38],[41]   $ 19,547,000 [39],[44]
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   6.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 96,846,000    
Ending balance 125,551,000 [38]   $ 96,846,000 [25],[43]
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 3,411,000    
Fair Value [34] $ (34,000)    
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [36],[38]   7.00% [25],[33],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 811,000    
Ending balance 3,505,000 [36],[38]   $ 811,000 [25],[33],[39]
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 2,674,000   464,000
Unfunded Commitment 2,326,000   4,536,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 840,000   354,000
Unfunded Commitment 410,000   896,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 8.25% [38]   8.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 13,001,000    
Ending balance 13,001,000 [38]   $ 13,001,000 [25],[39]
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 500,000   500,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: GI Apple Midco LLC (dba Atlas Technical Consultants), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 1,720,000   1,724,000
Unfunded Commitment 14,090,000   14,090,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: GI Apple Midco LLC (dba Atlas Technical Consultants), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [36],[40]   6.75% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 82,031,000    
Ending balance $ 81,822,000 [36],[40]   $ 82,031,000 [25],[43]
Investment, Identifier [Axis]: GI Apple Midco LLC (dba Atlas Technical Consultants), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [36],[40]   6.75% [25],[43]
Funded Commitment $ 6,333,000   $ 4,274,000
Unfunded Commitment 4,749,000   6,807,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 4,164,000    
Ending balance 6,222,000 [36],[40]   $ 4,164,000 [25],[43]
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 24,150,000    
Ending balance [25],[39]     $ 24,150,000
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 5.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 19,936,000    
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 5.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 4,090,000    
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     6.00%
Funded Commitment 0   $ 195,000
Unfunded Commitment 1,673,000   1,478,000
Fair Value (33,000) [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 166,000    
Ending balance [25],[39]     166,000
Investment, Identifier [Axis]: GS Acquisitionco, Inc. (dba insightsoftware), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 72,000   72,000
Unfunded Commitment 254,000   254,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: GS Acquisitionco, Inc. (dba insightsoftware), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   5.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 9,468,000    
Ending balance 9,419,000 [36],[38]   $ 9,468,000 [25],[39]
Investment, Identifier [Axis]: GS Acquisitionco, Inc. (dba insightsoftware), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 247,000   247,000
Fair Value (2,000) [34]   (2,000) [1]
Investment, Identifier [Axis]: Galls, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 11,970,000   4,312,000
Unfunded Commitment 27,258,000   34,926,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Galls, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   6.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 122,212,000    
Ending balance $ 130,018,000 [36],[38]   $ 122,212,000 [25],[39]
Investment, Identifier [Axis]: Galls, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 6.00%    
Funded Commitment $ 3,139,000   0
Unfunded Commitment 12,558,000   15,697,000
Fair Value 0 [34]   $ 0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 3,139,000    
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [36],[38]   4.50% [25],[33],[39]
Funded Commitment $ 2,812,000   $ 895,000
Unfunded Commitment 46,920,000   48,838,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] 1,419,000    
Ending balance 4,861,000 [36],[38]   1,419,000 [25],[33],[39]
Investment, Identifier [Axis]: Galway Borrower LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,049,000   524,000
Unfunded Commitment 4,217,000   5,742,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 188,629,000    
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 98,138,000    
Ending balance [25],[39]     $ 98,138,000
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 91,000,000    
Ending balance [39]     $ 91,000,000
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,066,000   2,066,000
Unfunded Commitment 1,907,000   1,907,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Gehl Foods, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     6.25%
Funded Commitment 6,806,000   $ 3,639,000
Unfunded Commitment 2,274,000   5,458,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 3,621,000    
Ending balance [25],[33],[39]     $ 3,621,000
Investment, Identifier [Axis]: Gehl Foods, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [36],[38]   6.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 117,667,000    
Ending balance $ 124,768,000 [36],[38]   $ 117,667,000 [43]
Investment, Identifier [Axis]: Geosyntec Consultants, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40],[41]   3.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 5,032,000    
Ending balance $ 4,975,000 [40],[41]   $ 5,032,000 [43],[44]
Investment, Identifier [Axis]: Gerson Lehrman Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 165,599,000    
Ending balance 166,014,000 [38]   $ 165,599,000 [39]
Investment, Identifier [Axis]: Gerson Lehrman Group, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,404,000   8,404,000
Fair Value $ 0 [34]   $ (21,000) [1]
Investment, Identifier [Axis]: Gloves Buyer, Inc. (dba Protective Industrial Products), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   4.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 38,296,000    
Ending balance 142,080,000 [40],[41]   $ 38,296,000 [25],[43]
Investment, Identifier [Axis]: Gloves Holdings, LP (dba Protective Industrial Products), LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 118,000    
Ending balance $ 155,000 [35],[37]   $ 118,000 [31],[32]
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 4,859,000    
Ending balance $ 4,887,000 [38]   $ 4,859,000 [39]
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38]   5.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 33,127,000    
Ending balance 33,237,000 [38]   $ 33,127,000 [39]
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,633,000   4,633,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: GrowthCurve Capital Sunrise Co-Invest LP (dba Brightway), LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 420,000    
Ending balance $ 420,000 [35],[37]   $ 420,000 [31],[32]
Investment, Identifier [Axis]: Guidehouse Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40]   5.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 106,864,000    
Ending balance $ 107,674,000 [40]   $ 106,864,000 [43]
Investment, Identifier [Axis]: Helix Acquisition Holdings, Inc. (dba MW Industries), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [40]   7.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 61,023,000    
Ending balance $ 61,023,000 [40]   $ 61,023,000 [43]
Investment, Identifier [Axis]: Hercules Borrower, LLC (dba The Vincit Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 15,774,000    
Ending balance 15,738,000 [38]   $ 15,774,000 [25],[39]
Investment, Identifier [Axis]: Hercules Borrower, LLC (dba The Vincit Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 96,000   96,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32],[62] 12,000    
Ending balance 12,000 [35],[37],[63]   12,000 [31],[32],[62]
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), Unsecured notes      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[62] 28,000    
Ending balance 28,000 [29],[63]   28,000 [24],[62]
Investment, Identifier [Axis]: Hg Genesis 9 SumoCo Limited, Unsecured facility      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[49] 148,366,000    
Ending balance 158,306,000 [30],[48]   148,366,000 [27],[49]
Investment, Identifier [Axis]: Hg Saturn Luchaco Limited, Unsecured facility      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[46] 801,000    
Ending balance $ 876,000 [30],[47]   $ 801,000 [27],[46]
Investment, Identifier [Axis]: Hissho Parent, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   4.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 123,263,000    
Ending balance 122,948,000 [38]   $ 123,263,000 [25],[39]
Investment, Identifier [Axis]: Hissho Parent, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,009,000   11,009,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Hissho Sushi Holdings, LLC, Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 12,153,000    
Ending balance 12,497,000 [35],[37]   12,153,000 [31],[32]
Investment, Identifier [Axis]: Hockey Parent Holdings, L.P., Class A Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 27,932,000    
Ending balance 27,932,000 [35],[37]   $ 27,932,000 [31],[32]
Investment, Identifier [Axis]: Home Service TopCo IV, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 2,799,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Home Service TopCo IV, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   6.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 35,923,000    
Ending balance 35,832,000 [38]   $ 35,923,000 [39]
Investment, Identifier [Axis]: Home Service TopCo IV, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 3,359,000   3,359,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Hub International, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43],[44]     2.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 12,444,000    
Ending balance [43],[44]     $ 12,444,000
Investment, Identifier [Axis]: Hyland Software, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   6.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 145,743,000    
Ending balance 145,395,000 [40]   $ 145,743,000 [43]
Investment, Identifier [Axis]: Hyland Software, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 6,978,000   6,978,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Hyperion Refinance S.à r.l (dba Howden Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [30],[40],[41]   3.00% [27],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] $ 30,305,000    
Ending balance $ 60,565,000 [30],[40],[41]   $ 30,305,000 [27],[43],[44]
Investment, Identifier [Axis]: IG Investments Holdings, LLC (dba Insight Global), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 47,716,000    
Ending balance 47,597,000 [38]   $ 47,716,000 [39]
Investment, Identifier [Axis]: IG Investments Holdings, LLC (dba Insight Global), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,866,000   4,866,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: IMA Financial Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 59,092,000    
Ending balance $ 58,536,000 [40],[41]   $ 59,092,000 [43],[44]
Investment, Identifier [Axis]: IRI Group Holdings, Inc. (f/k/a Circana Group, L.P. (f/k/a The NPD Group, L.P.)), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 229,533,000    
Ending balance $ 228,932,000 [38]   $ 229,533,000 [43]
Investment, Identifier [Axis]: IRI Group Holdings, Inc. (f/k/a Circana Group, L.P. (f/k/a The NPD Group, L.P.)), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[40]   5.00% [25],[39]
Funded Commitment $ 1,598,000   $ 2,517,000
Unfunded Commitment 12,669,000   11,750,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 2,517,000    
Ending balance $ 1,598,000 [36],[40]   $ 2,517,000 [25],[39]
Investment, Identifier [Axis]: Icefall Parent, Inc. (dba EngageSmart), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [38]   6.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 28,869,000    
Ending balance 28,869,000 [38]   $ 28,869,000 [43]
Investment, Identifier [Axis]: Icefall Parent, Inc. (dba EngageSmart), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,749,000   2,749,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] 3,195,000    
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured loan 1      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 2,337,000    
Ending balance [39]     $ 2,337,000
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 637,000    
Ending balance [43]     $ 637,000
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 6.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[64] $ 741,000    
Ending balance 953,000 [36],[38]   741,000 [25],[64]
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured revolving loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 732,000   732,000
Unfunded Commitment 183,000   183,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured revolving loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 953,000   33,000
Unfunded Commitment 145,000   0
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured revolving loan 3      
Schedule of Investments [Line Items]      
Funded Commitment 80,000    
Unfunded Commitment 0    
Fair Value [34] 0    
Investment, Identifier [Axis]: Ideal Topco, L.P., Class A-1 Preferred Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 4,376,000    
Ending balance 4,615,000 [35],[37]   4,376,000 [31],[32]
Investment, Identifier [Axis]: Ideal Topco, L.P., Class A-2 Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 0    
Ending balance $ 0 [35],[37]   $ 0 [31],[32]
Investment, Identifier [Axis]: Ideal Tridon Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [38]   6.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 89,866,000    
Ending balance 89,866,000 [38]   $ 89,866,000 [39]
Investment, Identifier [Axis]: Ideal Tridon Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,630,000   8,630,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Imprivata, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38],[41]   3.50% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 10,396,000    
Ending balance 10,304,000 [38],[41]   $ 10,396,000 [39],[44]
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 1,075,000   0
Unfunded Commitment 12,359,000   13,434,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 125,730,000    
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 111,601,000    
Ending balance [25],[39]     $ 111,601,000
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 13,300,000    
Ending balance [43]     $ 13,300,000
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 12,700,000   12,700,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Indikami Bidco, LLC (dba IntegriChain), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [36],[40]   6.00% [25],[33],[43]
Funded Commitment $ 751,000   $ 375,000
Unfunded Commitment 5,819,000   6,194,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[43] 373,000    
Ending balance $ 743,000 [36],[40]   $ 373,000 [25],[33],[43]
Investment, Identifier [Axis]: Indikami Bidco, LLC (dba IntegriChain), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40]   6.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 47,635,000    
Ending balance $ 47,692,000 [40]   $ 47,635,000 [43]
Investment, Identifier [Axis]: Indikami Bidco, LLC (dba IntegriChain), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [36],[40]   6.00% [25],[43]
Funded Commitment $ 2,628,000   $ 1,689,000
Unfunded Commitment 2,065,000   3,003,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 1,666,000    
Ending balance $ 2,581,000 [36],[40]   $ 1,666,000 [25],[43]
Investment, Identifier [Axis]: Innovation Ventures HoldCo, LLC (dba 5 Hour Energy), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [40]   6.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 195,117,000    
Ending balance $ 195,117,000 [40]   $ 195,117,000 [25],[43]
Investment, Identifier [Axis]: Inovalon Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 91,382,000    
Ending balance 92,721,000 [38]   $ 91,382,000 [25],[39]
Investment, Identifier [Axis]: Inovalon Holdings, Inc., Second lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 57,248,000    
Ending balance 60,094,000 [38]   57,248,000 [39]
Investment, Identifier [Axis]: Insight CP (Blocker) Holdings, L.P. (dba CivicPlus, LLC), LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 1,239,000    
Ending balance 1,239,000 [30],[35],[37]   1,239,000 [27],[31],[32]
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 6,577,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     1,780,000
Fair Value [1]     0
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     22,020,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 65,430,000    
Ending balance 101,160,000 [38]   $ 65,430,000 [43]
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,934,000   5,934,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 53,446,000   53,446,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 353,327,000    
Ending balance 352,442,000 [38]   $ 353,327,000 [39]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 17,886,000   17,886,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [30],[38]   6.50% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 30,735,000    
Ending balance 30,661,000 [30],[38]   $ 30,735,000 [25],[27],[39]
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,049,000   2,049,000
Unfunded Commitment 0   0
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Interoperability Bidco, Inc. (dba Lyniate), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,079,000   5,079,000
Fair Value $ (102,000) [34]   $ (127,000) [1]
Investment, Identifier [Axis]: Interoperability Bidco, Inc. (dba Lyniate), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[38]   6.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 75,415,000    
Ending balance 76,819,000 [36],[38]   $ 75,415,000 [25],[39]
Investment, Identifier [Axis]: Interoperability Bidco, Inc. (dba Lyniate), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[43]     6.25%
Funded Commitment 1,324,000   $ 313,000
Unfunded Commitment 4,694,000   5,705,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 162,000    
Ending balance [25],[43]     $ 162,000
Investment, Identifier [Axis]: Ivanti Software, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43],[44]     4.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] 8,792,000    
Ending balance [43],[44]     $ 8,792,000
Investment, Identifier [Axis]: Ivanti Software, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 10,450,000    
Ending balance [39]     $ 10,450,000
Investment, Identifier [Axis]: JS Parent, Inc. (dba Jama Software), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 909,000    
Ending balance 907,000 [38]   $ 909,000 [39]
Investment, Identifier [Axis]: JS Parent, Inc. (dba Jama Software), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 88,000   88,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Javelin Buyer, Inc. (dba JAGGAER), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 15,104,000    
Ending balance $ 14,915,000 [38],[41]   $ 15,104,000 [39],[44]
Investment, Identifier [Axis]: KABAFUSION Parent, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 5.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 71,044,000    
Investment, Identifier [Axis]: KABAFUSION Parent, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     5.00%
Funded Commitment 0   $ 0
Unfunded Commitment 8,903,000   8,903,000
Fair Value (22,000) [34]   (89,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 70,510,000    
Ending balance [25],[39]     $ 70,510,000
Investment, Identifier [Axis]: KBP Brands, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 54,900,000    
Ending balance 54,924,000 [38]   $ 54,900,000 [25],[39]
Investment, Identifier [Axis]: KENE Acquisition, Inc. (dba Entrust Solutions Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[43]     5.25%
Funded Commitment 775,000   $ 777,000
Unfunded Commitment 6,695,000   6,695,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[43] $ 751,000    
Ending balance [25],[33],[43]     $ 751,000
Investment, Identifier [Axis]: KENE Acquisition, Inc. (dba Entrust Solutions Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 16,592,000    
Ending balance 17,299,000 [36],[38]   $ 16,592,000 [39]
Investment, Identifier [Axis]: KENE Acquisition, Inc. (dba Entrust Solutions Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,242,000   2,242,000
Fair Value (28,000) [34]   (28,000) [1]
Investment, Identifier [Axis]: KOBHG Holdings, L.P. (dba OB Hospitalist), Class A Interests      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 3,220,000    
Ending balance 3,220,000 [35],[37]   3,220,000 [31],[32]
Investment, Identifier [Axis]: KPCI Holdings, L.P., Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 4,977,000    
Ending balance $ 5,050,000 [35],[37]   $ 4,977,000 [31],[32]
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. (dba BluSky), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[38]   5.75% [25],[33],[39]
Funded Commitment $ 72,000   $ 73,000
Unfunded Commitment 6,054,000   6,054,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] (342,000)    
Ending balance $ (265,000) [36],[38]   $ (342,000) [25],[33],[39]
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. (dba BluSky), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 92,834,000    
Ending balance $ 93,857,000 [38]   $ 92,834,000 [25],[39]
Investment, Identifier [Axis]: KRIV Acquisition Inc. (dba Riveron), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 79,678,000    
Ending balance 79,477,000 [38]   $ 79,678,000 [25],[39]
Investment, Identifier [Axis]: KRIV Acquisition Inc. (dba Riveron), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 10,944,000   10,944,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: KUSRP Intermediate, Inc. (dba U.S. Retirement and Benefits Partners), First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 16,559,000    
Ending balance 17,185,000 [40]   16,559,000 [43]
Investment, Identifier [Axis]: KWOL Acquisition Inc. (dba Worldwide Clinical Trials), Class A Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 13,657,000    
Ending balance [31],[32]     $ 13,657,000
Investment, Identifier [Axis]: KWOL Acquisition Inc. (dba Worldwide Clinical Trials), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     4.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 172,278,000    
Ending balance [39]     $ 172,278,000
Investment, Identifier [Axis]: KWOL Acquisition Inc. (dba Worldwide Clinical Trials), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     0
Unfunded Commitment     23,568,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: KWOL Acquisition, Inc. (dba Worldwide Clinical Trials), Class A Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [35],[37] $ 14,700,000    
Investment, Identifier [Axis]: KWOL Acquisition, Inc. (dba Worldwide Clinical Trials), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 173,203,000    
Investment, Identifier [Axis]: KWOL Acquisition, Inc. (dba Worldwide Clinical Trials), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 23,755,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: KWOR Acquisition, Inc. (dba Alacrity Solutions), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 3,857,000    
Fair Value [34] $ (19,000)    
Investment, Identifier [Axis]: KWOR Acquisition, Inc. (dba Alacrity Solutions), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 1.00% [38]   4.25% [25],[31],[58],[65]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[31],[58],[65] $ 27,345,000    
Ending balance 17,502,000 [38]   $ 27,345,000 [25],[31],[58],[65]
Investment, Identifier [Axis]: KWOR Acquisition, Inc. (dba Alacrity Solutions), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [31],[58],[65]     4.25%
Funded Commitment 0   $ 3,415,000
Unfunded Commitment 2,877,000   0
Fair Value (14,000) [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[58],[65] 2,698,000    
Ending balance [31],[58],[65]     $ 2,698,000
Investment, Identifier [Axis]: KWOR Intermediate I, Inc. (dba Alacrity Solutions), Class A-1 Common Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [35],[37] 1,726,000    
Investment, Identifier [Axis]: KWOR Intermediate I, Inc. (dba Alacrity Solutions), First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] 5,725,000    
Investment, Identifier [Axis]: KWOR Intermediate I, Inc. (dba Alacrity Solutions), Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [37],[38] 3,856,000    
Investment, Identifier [Axis]: Kaseya Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     5.50%
Funded Commitment     $ 847,000
Unfunded Commitment     3,230,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 2,213,000    
Ending balance [25],[33],[39]     $ 2,213,000
Investment, Identifier [Axis]: Kaseya Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40]   5.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 72,874,000    
Ending balance $ 79,600,000 [40]   $ 72,874,000 [43]
Investment, Identifier [Axis]: Kaseya Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment     1,097,000
Unfunded Commitment     3,256,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Kaseya Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 5.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 19,900,000    
Investment, Identifier [Axis]: Klarna Holding AB, Subordinated Floating Rate Notes      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [30],[38]   7.00% [27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 1,000,000    
Ending balance 1,000,000 [30],[38]   $ 1,000,000 [27],[39]
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc. (dba Kaseya Inc.), Perpetual Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [32],[51] 74,361,000    
Ending balance 46,828,000 [37],[45]   74,361,000 [32],[51]
Investment, Identifier [Axis]: LSI Financing 1 DAC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 4,771,000 78,406,000 78,406,000
Gross Additions 1,000 [16]   22,288,000 [17]
Gross Reductions 0 [18]   (100,694,000) [19]
Net change in unrealized gain (loss) (82,000)   (6,093,000)
Non-controlled, non-affiliated investments 0   10,864,000
Ending balance 4,690,000   4,771,000
Payment-in-kind (“PIK”) dividend income 0   486,000
Interest and PIK Income 0   74,000
Other income 0   0
Investment, Identifier [Axis]: LSI Financing 1 DAC, Preferred equity      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[32],[66] 4,771,000    
Ending balance 4,690,000 [30],[35],[37],[67]   4,771,000 [27],[32],[66]
Investment, Identifier [Axis]: LSI Financing LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 293,775,000 0 0
Gross Additions 4,861,000 [16]   397,270,000 [20]
Gross Reductions (77,251,000) [19]   (108,567,000) [21]
Net change in unrealized gain (loss) 3,537,000   5,072,000
Non-controlled, non-affiliated investments 0   0
Ending balance 224,922,000   293,775,000
Payment-in-kind (“PIK”) dividend income 7,070,000   1,511,000
Interest and PIK Income 0   0
Other income 0   0
Investment, Identifier [Axis]: LSI Financing LLC, Common Equity      
Schedule of Investments [Line Items]      
Funded Commitment 216,313,000   288,704,000
Unfunded Commitment 4,500,000   5,738,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[26],[27],[32],[33],[52] 293,775,000    
Ending balance 224,922,000 [28],[30],[36],[37],[53]   293,775,000 [25],[26],[27],[32],[33],[52]
Investment, Identifier [Axis]: Lakefield Acquisition Corp. (dba Lakefield Veterinary Group), Common Equity      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [35],[37] 3,500,000    
Investment, Identifier [Axis]: Lakefield Acquisition Corp. (dba Lakefield Veterinary Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 4,213,000   344,000
Unfunded Commitment 47,386,000   51,256,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Lakefield Acquisition Corp. (dba Lakefield Veterinary Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [36],[40]   4.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 72,895,000    
Ending balance 76,563,000 [36],[40]   $ 72,895,000 [25],[43]
Investment, Identifier [Axis]: Lakefield Acquisition Corp. (dba Lakefield Veterinary Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,600,000   8,600,000
Fair Value $ (43,000) [34]   $ (43,000) [1]
Investment, Identifier [Axis]: Learning Care Group (US) No. 2 Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 22,406,000    
Ending balance $ 41,734,000 [38],[41]   $ 22,406,000 [39],[44]
Investment, Identifier [Axis]: Level 3 Financing, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[40],[41] 4.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[40],[41] $ 128,258,000    
Investment, Identifier [Axis]: Level 3 Financing, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[43],[44]     6.56%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] 39,811,000    
Ending balance [27],[43],[44]     $ 39,811,000
Investment, Identifier [Axis]: Level 3 Financing, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[43],[44]     6.56%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] 39,800,000    
Ending balance [27],[43],[44]     $ 39,800,000
Investment, Identifier [Axis]: Lightbeam Bidco, Inc. (dba Lazer Spot), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 19,558,000   19,608,000
Unfunded Commitment 27,285,000   27,285,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Lightbeam Bidco, Inc. (dba Lazer Spot), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 139,256,000    
Ending balance $ 138,903,000 [36],[38]   $ 139,256,000 [25],[39]
Investment, Identifier [Axis]: Lightbeam Bidco, Inc. (dba Lazer Spot), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.00%    
Funded Commitment $ 3,116,000   0
Unfunded Commitment 8,569,000   11,685,000
Fair Value 0 [34]   $ 0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 3,116,000    
Investment, Identifier [Axis]: Lignetics Investment Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 95,743,000    
Ending balance $ 95,496,000 [38]   $ 95,743,000 [25],[39]
Investment, Identifier [Axis]: Lignetics Investment Corp., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Funded Commitment $ 7,647,000   $ 8,412,000
Unfunded Commitment 3,824,000   3,059,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 8,354,000    
Ending balance 7,590,000 [36],[38]   8,354,000 [25],[39]
Investment, Identifier [Axis]: Litera Bidco LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     4,485,000
Unfunded Commitment     5,067,000
Fair Value [1]     0
Investment, Identifier [Axis]: Litera Bidco LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 8,763,000   0
Unfunded Commitment 767,000   3,981,000
Fair Value 0 [34]   $ (10,000) [1]
Investment, Identifier [Axis]: Litera Bidco LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 3,981,000    
Fair Value [34] $ (10,000)    
Investment, Identifier [Axis]: Litera Bidco LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[40]   5.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 38,558,000    
Ending balance 42,739,000 [36],[40]   $ 38,558,000 [25],[43]
Investment, Identifier [Axis]: Litera Bidco LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,266,000   2,266,000
Fair Value $ (6,000) [34]   $ (6,000) [1]
Investment, Identifier [Axis]: MADISON IAQ LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 3.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 39,600,000    
Investment, Identifier [Axis]: MED ParentCo, LP, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 25,110,000    
Ending balance $ 24,820,000 [40],[41]   $ 25,110,000 [43],[44]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC (dba OnPoint Group), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [36],[38]   6.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 60,717,000    
Ending balance $ 60,998,000 [36],[38]   $ 60,717,000 [25],[39]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC (dba OnPoint Group), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [38]   6.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 4,620,000    
Ending balance 4,608,000 [38]   $ 4,620,000 [39]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC (dba OnPoint Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 1,429,000   714,000
Unfunded Commitment 2,143,000   2,857,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: MJH Healthcare Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41],[50]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 14,528,000    
Ending balance $ 14,339,000 [40],[41],[50]   $ 14,528,000 [43],[44]
Investment, Identifier [Axis]: Magnet Forensics, LLC (f/k/a Grayshift, LLC), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [30],[40]   5.00% [27],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43] $ 168,082,000    
Ending balance 167,675,000 [30],[40]   $ 168,082,000 [27],[43]
Investment, Identifier [Axis]: Magnet Forensics, LLC (f/k/a Grayshift, LLC), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,419,000   2,419,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Maia Aggregator, LP, Class A-2 Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 11,687,000    
Ending balance 11,687,000 [35],[37]   11,687,000 [31],[32]
Investment, Identifier [Axis]: ManTech International Corporation, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,164,000   2,164,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: ManTech International Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 14,674,000    
Ending balance 14,637,000 [38]   $ 14,674,000 [39]
Investment, Identifier [Axis]: ManTech International Corporation, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,806,000   1,806,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Maple Acquisition, LLC (dba Medicus), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 20,448,000   20,448,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Maple Acquisition, LLC (dba Medicus), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [45]   5.25% [51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [51] $ 107,353,000    
Ending balance 105,649,000 [45]   $ 107,353,000 [51]
Investment, Identifier [Axis]: Maple Acquisition, LLC (dba Medicus), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 15,336,000   15,336,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Mario Midco Holdings, Inc. (dba Len the Plumber), Unsecured facility      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 31,628,000    
Ending balance 32,843,000 [40]   31,628,000 [43]
Investment, Identifier [Axis]: Mario Purchaser, LLC (dba Len the Plumber), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,653,000   2,659,000
Unfunded Commitment 24,114,000   24,114,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Mario Purchaser, LLC (dba Len the Plumber), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[40]   5.75% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 113,014,000    
Ending balance $ 112,725,000 [36],[40]   $ 113,014,000 [25],[43]
Investment, Identifier [Axis]: Mario Purchaser, LLC (dba Len the Plumber), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[40]   5.75% [25],[43]
Funded Commitment $ 2,947,000   $ 2,411,000
Unfunded Commitment 5,091,000   5,627,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 2,190,000    
Ending balance $ 2,726,000 [36],[40]   $ 2,190,000 [25],[43]
Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 29,207,000    
Ending balance 28,829,000 [38],[41]   $ 29,207,000 [43],[44]
Investment, Identifier [Axis]: Metis HoldCo, Inc. (dba Mavis Tire Express Services), Series A Convertible Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 13,887,000    
Ending balance $ 14,126,000 [29],[37]   $ 13,887,000 [24],[32]
Investment, Identifier [Axis]: Milan Laser Holdings LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 20,010,000    
Ending balance 19,858,000 [38]   $ 20,010,000 [39]
Investment, Identifier [Axis]: Milan Laser Holdings LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,553,000   2,553,000
Fair Value (13,000) [34]   0 [1]
Investment, Identifier [Axis]: Minerva Holdco, Inc., Senior A Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 131,874,000    
Ending balance $ 135,419,000 [29],[37]   $ 131,874,000 [24],[32]
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [40]   5.50% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 52,540,000    
Ending balance 52,405,000 [40]   $ 52,540,000 [25],[43]
Investment, Identifier [Axis]: Ministry Brands Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,746,000   4,746,000
Fair Value (36,000) [34]   (36,000) [1]
Investment, Identifier [Axis]: Minotaur Acquisition, Inc. (dba Inspira Financial), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 41,960,000   41,960,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Minotaur Acquisition, Inc. (dba Inspira Financial), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 291,628,000    
Ending balance 292,044,000 [40]   $ 291,628,000 [25],[43]
Investment, Identifier [Axis]: Minotaur Acquisition, Inc. (dba Inspira Financial), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 25,814,000   25,814,000
Fair Value $ 0 [34]   $ (129,000) [1]
Investment, Identifier [Axis]: Mitchell International, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 82,029,000    
Ending balance $ 90,678,000 [40],[41]   $ 82,029,000 [43],[44]
Investment, Identifier [Axis]: Mitchell International, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40],[41]   5.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 32,272,000    
Ending balance $ 31,768,000 [40],[41]   $ 32,272,000 [43],[44]
Investment, Identifier [Axis]: Mitnick Corporate Purchaser, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [36],[38],[50]   3.00% [25],[51]
Funded Commitment $ 1,125,000   $ 1,700,000
Unfunded Commitment 8,250,000   7,675,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[51] 1,044,000    
Ending balance (328,000) [36],[38],[50]   1,044,000 [25],[51]
Investment, Identifier [Axis]: Monotype Imaging Holdings Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 3,252,000   3,268,000
Unfunded Commitment 10,759,000   10,759,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Monotype Imaging Holdings Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[40]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 170,327,000    
Ending balance 170,317,000 [36],[40]   $ 170,327,000 [25],[39]
Investment, Identifier [Axis]: Monotype Imaging Holdings Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 21,041,000   21,041,000
Fair Value $ 0 [34]   $ (53,000) [1]
Investment, Identifier [Axis]: Motus Group, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 7,498,000    
Ending balance 32,159,000 [38],[41]   $ 7,498,000 [39],[44]
Investment, Identifier [Axis]: NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A., First lien senior secured EUR delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 23,316,000   22,358,000
Fair Value $ (291,000) [34]   $ (279,000) [1]
Investment, Identifier [Axis]: NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A., First lien senior secured EUR revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[68]   5.50% [25],[69]
Funded Commitment $ 760,000   $ 1,367,000
Unfunded Commitment 3,590,000   2,803,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[69] 57,717,000    
Ending balance $ 673,000 [36],[68]   $ 57,717,000 [25],[69]
Investment, Identifier [Axis]: NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A., First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [48] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [48] $ 58,748,000    
Investment, Identifier [Axis]: NMI Acquisitionco, Inc. (dba Network Merchants), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 12,178,000    
Ending balance 12,146,000 [40]   $ 12,178,000 [25],[43]
Investment, Identifier [Axis]: NMI Acquisitionco, Inc. (dba Network Merchants), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 558,000   558,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Natural Partners, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[38]   4.50% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 91,081,000    
Ending balance 91,304,000 [30],[38]   $ 91,081,000 [25],[27],[39]
Investment, Identifier [Axis]: Natural Partners, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,814,000   11,814,000
Fair Value 0 [34]   $ (59,000) [1]
Investment, Identifier [Axis]: Natus Medical Incorporated, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 478,000    
Ending balance [43]     $ 478,000
Investment, Identifier [Axis]: Nelipak Holding Company, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,787,000   11,787,000
Fair Value $ (147,000) [34]   $ (147,000) [1]
Investment, Identifier [Axis]: Nelipak Holding Company, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 33,294,000    
Ending balance $ 29,700,000 [38]   $ 33,294,000 [25],[43]
Investment, Identifier [Axis]: Nelipak Holding Company, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 5.50%    
Funded Commitment $ 4,398,000   3,695,000
Unfunded Commitment 4,398,000   5,102,000
Fair Value 0 [34]   $ 0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 4,222,000    
Investment, Identifier [Axis]: Neptune Holdings, Inc. (dba NexTech), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 30,574,000    
Ending balance 30,496,000 [38]   $ 30,574,000 [39]
Investment, Identifier [Axis]: Neptune Holdings, Inc. (dba NexTech), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,118,000   4,118,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Non-controlled/affiliated - delayed draw debt commitments      
Schedule of Investments [Line Items]      
Funded Commitment    
Unfunded Commitment    
Fair Value [34]    
Investment, Identifier [Axis]: Non-controlled/affiliated - equity commitments      
Schedule of Investments [Line Items]      
Funded Commitment    
Unfunded Commitment    
Fair Value [34]    
Investment, Identifier [Axis]: Non-controlled/affiliated - revolving debt commitments      
Schedule of Investments [Line Items]      
Funded Commitment    
Unfunded Commitment    
Fair Value [34]    
Investment, Identifier [Axis]: Non-controlled/non-affiliated - revolving debt commitments      
Schedule of Investments [Line Items]      
Funded Commitment    
Unfunded Commitment    
Fair Value [34]    
Investment, Identifier [Axis]: Notorious Topco, LLC (dba Beauty Industry Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   7.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 204,692,000    
Ending balance $ 191,613,000 [38]   $ 204,692,000 [25],[39]
Investment, Identifier [Axis]: Notorious Topco, LLC (dba Beauty Industry Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 4.75%    
Funded Commitment $ 1,408,000   0
Unfunded Commitment 3,873,000   5,282,000
Fair Value 0 [34]   $ (581,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 511,000    
Investment, Identifier [Axis]: Nouryon Finance B.V., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [30],[38],[41]   3.25% [27],[39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[44] $ 12,679,000    
Ending balance $ 12,408,000 [30],[38],[41]   $ 12,679,000 [27],[39],[44]
Investment, Identifier [Axis]: Novaria Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40]   4.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 17,042,000    
Ending balance $ 16,831,000 [40]   $ 17,042,000 [43],[44]
Investment, Identifier [Axis]: OAC Holdings I Corp. (dba Omega Holdings), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 8,891,000    
Ending balance $ 8,321,000 [38]   $ 8,891,000 [43]
Investment, Identifier [Axis]: OAC Holdings I Corp. (dba Omega Holdings), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.00%    
Funded Commitment $ 919,000   0
Unfunded Commitment 1,654,000   2,572,000
Fair Value 0 [34]   $ (19,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 899,000    
Investment, Identifier [Axis]: OB Hospitalist Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40]   5.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 68,257,000    
Ending balance 68,252,000 [40]   $ 68,257,000 [25],[43]
Investment, Identifier [Axis]: OB Hospitalist Group, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 7,993,000   7,993,000
Fair Value 0 [34]   (20,000) [1]
Investment, Identifier [Axis]: OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC)      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 311,609,000 273,441,000 273,441,000
Gross Additions 0 [16]   53,375,000 [20]
Gross Reductions 0 [19]   0 [21]
Net change in unrealized gain (loss) (19,354,000)   (15,207,000)
Non-controlled, non-affiliated investments 0   0
Ending balance 292,255,000   311,609,000
Payment-in-kind (“PIK”) dividend income 9,590,000   53,039,000
Interest and PIK Income 0   0
Other income 0   0
Investment, Identifier [Axis]: OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC), LLC Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [26],[27],[32],[52] 311,609,000    
Ending balance $ 292,255,000 [28],[30],[37],[53]   $ 311,609,000 [26],[27],[32],[52]
Investment, Identifier [Axis]: Olaplex, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [30],[40],[41]   3.50% [27],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] $ 35,749,000    
Ending balance $ 33,414,000 [30],[40],[41]   $ 35,749,000 [27],[43],[44]
Investment, Identifier [Axis]: Ole Smoky Distillery, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [40]   5.50% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 29,941,000    
Ending balance 29,865,000 [40]   $ 29,941,000 [25],[43]
Investment, Identifier [Axis]: Ole Smoky Distillery, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 3,302,000   3,302,000
Fair Value $ (25,000) [34]   $ (25,000) [1]
Investment, Identifier [Axis]: OneDigital Borrower LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 74,403,000    
Ending balance $ 53,764,000 [40],[41]   $ 74,403,000 [43],[44]
Investment, Identifier [Axis]: OneDigital Borrower LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [40],[41]   5.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 33,611,000    
Ending balance $ 33,716,000 [40],[41]   $ 33,611,000 [43],[44]
Investment, Identifier [Axis]: OneOncology, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   5.00% [25],[39]
Funded Commitment     $ 35,851,000
Unfunded Commitment     35,494,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 88,468,000    
Ending balance 97,920,000 [36],[38]   $ 88,468,000 [25],[39]
Investment, Identifier [Axis]: OneOncology, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 44,679,000    
Unfunded Commitment 26,576,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: OneOncology, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 121,354,000    
Fair Value [34] $ (303,000)    
Investment, Identifier [Axis]: OneOncology, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   6.25% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 97,074,000    
Ending balance 104,247,000 [38]   $ 97,074,000 [25],[39]
Investment, Identifier [Axis]: OneOncology, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 41,243,000   14,269,000
Fair Value $ (206,000) [34]   0 [1]
Investment, Identifier [Axis]: Opal US LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[40] 3.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[40] $ 42,288,000    
Investment, Identifier [Axis]: Orange Blossom Parent, Inc., Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 1,664,000    
Ending balance $ 1,664,000 [35],[37]   $ 1,664,000 [31],[32]
Investment, Identifier [Axis]: Oranje Holdco, Inc. (dba KnowBe4), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.75% [38]   7.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 81,182,000    
Ending balance $ 81,182,000 [38]   $ 81,182,000 [39]
Investment, Identifier [Axis]: Oranje Holdco, Inc. (dba KnowBe4), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.25% [38]   7.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 33,762,000    
Ending balance 33,762,000 [38]   $ 33,762,000 [39]
Investment, Identifier [Axis]: Oranje Holdco, Inc. (dba KnowBe4), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 10,148,000   10,148,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Osmose Utilities Services, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 4,806,000    
Ending balance 4,721,000 [40],[41]   $ 4,806,000 [43],[44]
Investment, Identifier [Axis]: PCF Holdco, LLC (dba PCF Insurance Services), Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 28,252,000    
Ending balance 26,338,000 [35],[37]   28,252,000 [31],[32]
Investment, Identifier [Axis]: PCF Holdco, LLC (dba PCF Insurance Services), Preferred equity      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 22,262,000    
Ending balance 25,413,000 [29],[37]   22,262,000 [24],[32]
Investment, Identifier [Axis]: PCF Holdco, LLC (dba PCF Insurance Services), Warrants      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 4,744,000    
Ending balance 4,283,000 [35],[37]   4,744,000 [31],[32]
Investment, Identifier [Axis]: PCF Midco II, LLC (dba PCF Insurance Services), First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24] 56,206,000    
Ending balance 60,035,000 [29]   $ 56,206,000 [24]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     5.50%
Funded Commitment 0   $ 8,328,000
Unfunded Commitment 6,584,000   6,584,000
Fair Value (66,000) [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 8,211,000    
Ending balance [25],[33],[39]     $ 8,211,000
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 63,564,000    
Ending balance 72,437,000 [36],[38]   $ 63,564,000 [39]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 875,000   0
Unfunded Commitment 5,685,000   6,560,000
Fair Value 0 [34]   $ (66,000) [1]
Investment, Identifier [Axis]: POLARIS PURCHASER, INC. (dba Plusgrade), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[39]     4.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 25,992,000    
Ending balance [27],[39]     $ 25,992,000
Investment, Identifier [Axis]: PPI Holding US INC. (dba Nuvei), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[40],[41] 3.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[40],[41] $ 19,844,000    
Investment, Identifier [Axis]: PPI Holding US Inc. (dba Nuvei), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[43],[44]     3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] 20,018,000    
Ending balance [27],[43],[44]     $ 20,018,000
Investment, Identifier [Axis]: PPT Holdings III, LLC (dba Park Place Technologies), First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24] 29,950,000    
Ending balance $ 31,139,000 [29]   $ 29,950,000 [24]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38]   6.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 10,047,000    
Ending balance $ 10,022,000 [38]   $ 10,047,000 [39]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 162,580,000    
Ending balance 162,171,000 [38]   $ 162,580,000 [39]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,854,000   11,854,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: PUSHPAY USA INC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     4.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 15,075,000    
Ending balance [39]     $ 15,075,000
Investment, Identifier [Axis]: Pacific BidCo Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[45] 5.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[45] $ 17,547,000    
Investment, Identifier [Axis]: Pacific BidCo Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[27],[51]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[51] 182,982,000    
Ending balance 166,373,000 [30],[45]   $ 182,982,000 [25],[27],[51]
Investment, Identifier [Axis]: Packaging Coordinators Midco, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 236,996,000    
Fair Value [34] $ (1,778,000)    
Investment, Identifier [Axis]: Packaging Coordinators Midco, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 62,121,000    
Ending balance 440,071,000 [38]   $ 62,121,000 [39],[44]
Investment, Identifier [Axis]: Packaging Coordinators Midco, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 44,948,000    
Fair Value [34] (618,000)    
Investment, Identifier [Axis]: Par Technology Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[43]     5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43] 1,273,000    
Ending balance [27],[43]     $ 1,273,000
Investment, Identifier [Axis]: Paradigmatic Holdco LLC (dba Pluralsight), Common stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32],[66] 1,053,000    
Ending balance 1,053,000 [35],[37],[67]   1,053,000 [31],[32],[66]
Investment, Identifier [Axis]: Paris US Holdco, Inc. (dba Precinmac), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 18,063,000   18,063,000
Fair Value $ (90,000) [34]   $ (90,000) [1]
Investment, Identifier [Axis]: Paris US Holdco, Inc. (dba Precinmac), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 69,295,000    
Ending balance $ 69,295,000 [40]   $ 69,295,000 [43]
Investment, Identifier [Axis]: Paris US Holdco, Inc. (dba Precinmac), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[70] 4.00%    
Funded Commitment $ 90,000   0
Unfunded Commitment 8,941,000   9,032,000
Fair Value 0 [34]   (90,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[70] $ 0    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 5.25%    
Funded Commitment $ 6,930,000   0
Unfunded Commitment 6,543,000   13,490,000
Fair Value 0 [34]   $ 0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 6,895,000    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 85,531,000    
Ending balance $ 85,316,000 [38]   $ 85,531,000 [43]
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[40]   5.25% [25],[43]
Funded Commitment $ 2,361,000   $ 2,900,000
Unfunded Commitment 7,757,000   7,217,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 2,850,000    
Ending balance 2,310,000 [36],[40]   2,850,000 [25],[43]
Investment, Identifier [Axis]: Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 13,680,000   13,680,000
Unfunded Commitment 3,429,000   3,429,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [30],[36],[38]   5.25% [25],[27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[39] $ 54,203,000    
Ending balance $ 54,118,000 [30],[36],[38]   $ 54,203,000 [25],[27],[39]
Investment, Identifier [Axis]: Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[36],[40] 5.25%    
Funded Commitment $ 47,000   0
Unfunded Commitment 41,000   88,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[36],[40] 47,000    
Investment, Identifier [Axis]: Patriot Holdings SCSp (dba Corza Health, Inc.), Class A Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[27],[32] 1,539,000    
Ending balance 1,569,000 [29],[30],[37]   1,539,000 [24],[27],[32]
Investment, Identifier [Axis]: Patriot Holdings SCSp (dba Corza Health, Inc.), Class B Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 71,000    
Ending balance $ 68,000 [30],[35],[37]   $ 71,000 [27],[31],[32]
Investment, Identifier [Axis]: Pediatric Associates Holding Company, LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 31,277,000    
Ending balance $ 29,872,000 [38],[41]   $ 31,277,000 [39],[44]
Investment, Identifier [Axis]: Pediatric Associates Holding Company, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [38]   4.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 27,417,000    
Ending balance 26,253,000 [38]   $ 27,417,000 [39]
Investment, Identifier [Axis]: Pegasus BidCo B.V., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [27],[39],[44]     3.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[44] $ 13,596,000    
Ending balance [27],[39],[44]     $ 13,596,000
Investment, Identifier [Axis]: Peraton Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40],[41]   3.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 47,606,000    
Ending balance $ 45,424,000 [40],[41]   $ 47,606,000 [43],[44]
Investment, Identifier [Axis]: Peraton Corp., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.75% [38],[41]   7.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 3,894,000    
Ending balance $ 3,597,000 [38],[41]   $ 3,894,000 [39],[44]
Investment, Identifier [Axis]: Perforce Software, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40],[41]   4.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 4,903,000    
Ending balance $ 4,634,000 [40],[41]   $ 4,903,000 [43],[44]
Investment, Identifier [Axis]: Perforce Software, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40],[41]   4.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 14,443,000    
Ending balance $ 13,916,000 [40],[41]   $ 14,443,000 [43]
Investment, Identifier [Axis]: PerkinElmer U.S. LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     21,371,000
Unfunded Commitment     7,141,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: PerkinElmer U.S. LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 160,801,000    
Ending balance 166,678,000 [40]   $ 160,801,000 [25],[43]
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 31,691,000   31,691,000
Fair Value $ (1,426,000) [34]   $ (1,030,000) [1]
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [40]   6.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 230,313,000    
Ending balance 226,732,000 [40]   $ 230,313,000 [43]
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 33,258,000   33,258,000
Fair Value $ (1,829,000) [34]   $ (1,413,000) [1]
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC (dba PCF Insurance Services), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [40]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 155,045,000    
Ending balance $ 154,647,000 [40]   $ 155,045,000 [25],[39]
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC (dba PCF Insurance Services), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 27,965,000    
Ending balance 27,883,000 [38]   $ 27,965,000 [43]
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC (dba PCF Insurance Services), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,570,000   2,570,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Phantom Purchaser, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 88,749,000    
Ending balance 88,973,000 [38]   $ 88,749,000 [39]
Investment, Identifier [Axis]: Phantom Purchaser, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 11,437,000   11,437,000
Fair Value (29,000) [34]   $ (86,000) [1]
Investment, Identifier [Axis]: Phoenix Newco, Inc. (dba Parexel), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43],[44]     3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 41,577,000    
Ending balance [43],[44]     $ 41,577,000
Investment, Identifier [Axis]: Physician Partners, LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [38]   5.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 86,625,000    
Ending balance $ 168,776,000 [38]   $ 86,625,000 [39]
Investment, Identifier [Axis]: Physician Partners, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38]   4.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 17,978,000    
Ending balance $ 10,660,000 [38]   $ 17,978,000 [39]
Investment, Identifier [Axis]: Physician Partners, LLC, First lien senior secured loan 3      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 52,456,000    
Investment, Identifier [Axis]: Ping Identity Holding Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 65,809,000    
Ending balance 65,644,000 [38]   $ 65,809,000 [39]
Investment, Identifier [Axis]: Ping Identity Holding Corp., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 6,597,000   6,597,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Plano HoldCo, Inc. (dba Perficient), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38]   3.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 25,188,000    
Ending balance $ 24,875,000 [38]   $ 25,188,000 [39]
Investment, Identifier [Axis]: Plasma Buyer LLC (dba PathGroup), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [38]   6.25% [25],[33],[39]
Funded Commitment     $ 3,247,000
Unfunded Commitment     816,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 3,204,000    
Ending balance $ 3,986,000 [38]   $ 3,204,000 [25],[33],[39]
Investment, Identifier [Axis]: Plasma Buyer LLC (dba PathGroup), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 106,308,000    
Ending balance $ 105,500,000 [38]   $ 106,308,000 [39]
Investment, Identifier [Axis]: Plasma Buyer LLC (dba PathGroup), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [36],[38]   5.75% [25],[39]
Funded Commitment $ 10,116,000   $ 6,853,000
Unfunded Commitment 2,066,000   5,384,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 6,700,000    
Ending balance 9,903,000 [36],[38]   6,700,000 [25],[39]
Investment, Identifier [Axis]: Pluralsight, LLC      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance 3,477,000 $ 0 0
Gross Additions 43,000 [16]   3,477,000 [17]
Gross Reductions 0 [18]   0 [19]
Net change in unrealized gain (loss) 0   0
Non-controlled, non-affiliated investments 0   0
Ending balance 3,520,000   3,477,000
Payment-in-kind (“PIK”) dividend income 0   0
Interest and PIK Income 64,000   96,000
Other income 0   0
Investment, Identifier [Axis]: Pluralsight, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 496,000   496,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Pluralsight, LLC, First lien senior secured loan 1      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[66] 1,229,000    
Ending balance $ 1,267,000 [38],[67]   $ 1,229,000 [39],[66]
Investment, Identifier [Axis]: Pluralsight, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[67]   4.50% [25],[39],[66]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39],[66] $ 1,195,000    
Ending balance 1,200,000 [38],[67]   $ 1,195,000 [25],[39],[66]
Investment, Identifier [Axis]: Pluralsight, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 198,000   198,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Plusgrade Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[38] 3.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[38] $ 24,296,000    
Investment, Identifier [Axis]: PointClickCare Technologies, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [30],[38],[41]   3.25% [27],[39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[44] $ 52,260,000    
Ending balance $ 51,709,000 [30],[38],[41]   $ 52,260,000 [27],[39],[44]
Investment, Identifier [Axis]: Power Stop, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40],[41]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 27,639,000    
Ending balance $ 26,822,000 [40],[41]   $ 27,639,000 [39]
Investment, Identifier [Axis]: Pregis Topco LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 4.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 16,680,000    
Investment, Identifier [Axis]: Pregis Topco LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43],[44]     4.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] 16,823,000    
Ending balance [43],[44]     $ 16,823,000
Investment, Identifier [Axis]: Pregis Topco LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     7.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 2,500,000    
Ending balance [43]     $ 2,500,000
Investment, Identifier [Axis]: Pregis Topco LLC, Second lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 7.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 2,500,000    
Investment, Identifier [Axis]: Pregis Topco LLC, Second lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.75% [40]   6.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 30,000,000    
Ending balance $ 30,000,000 [40]   $ 30,000,000 [43]
Investment, Identifier [Axis]: Premise Health Holding Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 69,954,000    
Ending balance 69,778,000 [38]   $ 69,954,000 [39]
Investment, Identifier [Axis]: Premise Health Holding Corp., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,191,000   8,191,000
Fair Value $ (20,000) [34]   $ (20,000) [1]
Investment, Identifier [Axis]: Pretzel Parent, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [40],[41]   4.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 37,736,000    
Ending balance $ 37,455,000 [40],[41]   $ 37,736,000 [43],[44]
Investment, Identifier [Axis]: Pro Mach Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.75% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 69,279,000    
Ending balance $ 68,550,000 [40],[41]   $ 69,279,000 [43],[44]
Investment, Identifier [Axis]: ProAmpac PG Borrower LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 39,195,000    
Ending balance $ 51,611,000 [38],[41]   $ 39,195,000 [39],[44]
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc. (dba Qlik), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 24,768,000    
Ending balance 24,555,000 [38],[41]   $ 24,768,000 [39],[44]
Investment, Identifier [Axis]: Project Alpine Co-Invest Fund, LP, LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 22,325,000    
Ending balance $ 22,325,000 [30],[35],[37]   $ 22,325,000 [27],[31],[32]
Investment, Identifier [Axis]: Project Boost Purchaser, LLC (dba J.D. Power), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 23,890,000    
Ending balance $ 43,361,000 [38],[41]   $ 23,890,000 [43],[44]
Investment, Identifier [Axis]: Project Boost Purchaser, LLC (dba J.D. Power), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38],[41]   5.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 11,462,000    
Ending balance 11,237,000 [38],[41]   $ 11,462,000 [39],[44]
Investment, Identifier [Axis]: Project Hotel California Co-Invest Fund, L.P., LP Interest      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 4,056,000    
Ending balance $ 4,874,000 [30],[35],[37],[41]   $ 4,056,000 [27],[31],[32]
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp. (dba Wellsky), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 92,260,000    
Ending balance $ 72,961,000 [40],[41]   $ 92,260,000 [43],[44]
Investment, Identifier [Axis]: Proofpoint, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 64,460,000    
Ending balance $ 53,846,000 [40],[41]   $ 64,460,000 [43],[44]
Investment, Identifier [Axis]: Puma Buyer, LLC (dba PANTHERx), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 4.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 129,367,000    
Investment, Identifier [Axis]: Puma Buyer, LLC (dba PANTHERx), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 21,023,000    
Fair Value [34] $ (158,000)    
Investment, Identifier [Axis]: Pushpay USA Inc, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [30],[38] 4.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [30],[38] $ 14,963,000    
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 64,313,000   56,865,000
Unfunded Commitment 95,287,000   102,734,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [36],[38]   4.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 230,990,000    
Ending balance $ 238,420,000 [36],[38]   $ 230,990,000 [25],[39]
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [36],[38]   4.50% [25],[39]
Funded Commitment $ 4,213,000   $ 4,213,000
Unfunded Commitment 29,489,000   29,489,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 4,128,000    
Ending balance $ 4,128,000 [36],[38]   $ 4,128,000 [25],[39]
Investment, Identifier [Axis]: QAD, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [40]   4.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 46,172,000    
Ending balance 46,053,000 [40]   $ 46,172,000 [43]
Investment, Identifier [Axis]: QAD, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 6,000,000   6,000,000
Fair Value (15,000) [34]   $ (15,000) [1]
Investment, Identifier [Axis]: Quva Pharma, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[51]     5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[51] $ 5,846,000    
Ending balance [25],[51]     $ 5,846,000
Investment, Identifier [Axis]: Quva Pharma, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [45] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [45] $ 5,860,000    
Investment, Identifier [Axis]: Quva Pharma, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 5.50%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 905,000    
Investment, Identifier [Axis]: Quva Pharma, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [45]   5.50% [25],[51]
Funded Commitment $ 455,000   $ 382,000
Unfunded Commitment 0   73,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[51] 377,000    
Ending balance $ 452,000 [45]   $ 377,000 [25],[51]
Investment, Identifier [Axis]: RL Datix Holdings (USA), Inc., First lien senior secured GBP term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [47]   5.50% [46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [46] $ 38,141,000    
Ending balance 39,210,000 [47]   $ 38,141,000 [46]
Investment, Identifier [Axis]: RL Datix Holdings (USA), Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 14,908,000   14,908,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: RL Datix Holdings (USA), Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [45]   5.50% [51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [51] $ 65,763,000    
Ending balance 65,598,000 [45]   $ 65,763,000 [51]
Investment, Identifier [Axis]: RL Datix Holdings (USA), Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[39]     5.50%
Funded Commitment 0   $ 1,650,000
Unfunded Commitment 13,052,000   11,403,000
Fair Value (98,000) [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 1,584,000    
Ending balance [25],[39]     1,584,000
Investment, Identifier [Axis]: Raven Acquisition Holdings, LLC (dba R1 RCM), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,667,000   5,667,000
Fair Value $ (45,000) [34]   $ 0 [1]
Investment, Identifier [Axis]: Raven Acquisition Holdings, LLC (dba R1 RCM), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 79,460,000    
Ending balance 78,310,000 [40],[41]   $ 79,460,000 [43],[44]
Investment, Identifier [Axis]: RealPage, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39],[44]     3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 13,875,000    
Ending balance [39],[44]     $ 13,875,000
Investment, Identifier [Axis]: RealPage, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 18,296,000    
Ending balance $ 38,256,000 [38],[41]   $ 18,296,000 [39],[44]
Investment, Identifier [Axis]: RealPage, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38],[41] 3.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38],[41] $ 18,230,000    
Investment, Identifier [Axis]: Relativity ODA LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.49% [40]   4.50% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 32,656,000    
Ending balance 32,656,000 [40]   $ 32,656,000 [43]
Investment, Identifier [Axis]: Relativity ODA LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,797,000   2,797,000
Fair Value $ (7,000) [34]   $ (7,000) [1]
Investment, Identifier [Axis]: Renaissance Learning, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   4.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 31,026,000    
Ending balance $ 49,971,000 [40],[41]   $ 31,026,000 [43],[44]
Investment, Identifier [Axis]: Resonetics, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [38],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 75,209,000    
Ending balance 74,125,000 [38],[41]   $ 75,209,000 [39],[44]
Investment, Identifier [Axis]: Rhea Acquisition Holdings, LP, Series A-2 Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 14,493,000    
Ending balance $ 14,493,000 [35],[37]   $ 14,493,000 [31],[32]
Investment, Identifier [Axis]: Rhea Parent, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 250,858,000    
Ending balance 202,293,000 [38]   $ 250,858,000 [39]
Investment, Identifier [Axis]: Rhea Parent, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 21,596,000   43,315,000
Fair Value $ (54,000) [34]   $ (433,000) [1]
Investment, Identifier [Axis]: Rocket BidCo, Inc. (dba Recochem), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [30],[38]   5.75% [27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 348,851,000    
Ending balance 351,494,000 [30],[38]   $ 348,851,000 [27],[39]
Investment, Identifier [Axis]: Romulus Intermediate Holdings 1 Inc. (dba PetVet Care Centers), Series A Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 29,397,000    
Ending balance $ 30,158,000 [29],[37]   $ 29,397,000 [24],[32]
Investment, Identifier [Axis]: Rushmore Investment III LLC (dba Winland Foods), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 512,037,000    
Ending balance 510,746,000 [38]   $ 512,037,000 [25],[39]
Investment, Identifier [Axis]: STS PARENT, LLC (dba STS Aviation Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 37,550,000   37,550,000
Fair Value $ 0 [34]   $ (94,000) [1]
Investment, Identifier [Axis]: STS PARENT, LLC (dba STS Aviation Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 134,504,000    
Ending balance $ 134,504,000 [38]   $ 134,504,000 [43]
Investment, Identifier [Axis]: STS PARENT, LLC (dba STS Aviation Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[38]   5.00% [25],[43]
Funded Commitment $ 8,824,000   $ 6,947,000
Unfunded Commitment 6,196,000   8,073,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 6,872,000    
Ending balance $ 8,749,000 [36],[38]   $ 6,872,000 [25],[43]
Investment, Identifier [Axis]: SWK BUYER, Inc. (dba Stonewall Kitchen), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 56,720,000    
Ending balance 57,304,000 [38]   $ 56,720,000 [39]
Investment, Identifier [Axis]: SWK BUYER, Inc. (dba Stonewall Kitchen), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,579,000   5,579,000
Fair Value (98,000) [34]   $ (167,000) [1]
Investment, Identifier [Axis]: SailPoint Technologies Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 39,167,000    
Ending balance [39]     $ 39,167,000
Investment, Identifier [Axis]: SailPoint Technologies Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,718,000   5,718,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Salinger Bidco Inc. (dba Surgical Information Systems), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,742,000   5,742,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Salinger Bidco Inc. (dba Surgical Information Systems), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 59,188,000    
Ending balance 59,336,000 [38]   $ 59,188,000 [43]
Investment, Identifier [Axis]: Salinger Bidco Inc. (dba Surgical Information Systems), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,742,000   5,742,000
Fair Value $ 0 [34]   $ (14,000) [1]
Investment, Identifier [Axis]: Saphilux S.a.r.L. (dba IQ-EQ), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [30],[41],[45]   3.50% [27],[44],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[44],[51] $ 32,581,000    
Ending balance 32,297,000 [30],[41],[45]   $ 32,581,000 [27],[44],[51]
Investment, Identifier [Axis]: Savor Acquisition, Inc. (dba Sauer Brands), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 7,759,000    
Fair Value [34] $ (2,000)    
Investment, Identifier [Axis]: Savor Acquisition, Inc. (dba Sauer Brands), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 3.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 82,118,000    
Investment, Identifier [Axis]: Securonix, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38]   7.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 25,731,000    
Ending balance $ 25,978,000 [38]   $ 25,731,000 [39]
Investment, Identifier [Axis]: Securonix, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [36],[38]   7.00% [25],[39]
Funded Commitment $ 120,000   $ 120,000
Unfunded Commitment 5,219,000   5,219,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] (587,000)    
Ending balance $ (587,000) [36],[38]   $ (587,000) [25],[39]
Investment, Identifier [Axis]: Sedgwick Claims Management Services, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 24,937,000    
Ending balance 74,474,000 [38],[41]   $ 24,937,000 [39],[44]
Investment, Identifier [Axis]: Sensor Technology Topco, Inc. (dba Humanetics), First lien senior secured EUR delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 449,000   172,000
Unfunded Commitment 600,000   834,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Sensor Technology Topco, Inc. (dba Humanetics), First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.25% [36],[48]   7.25% [25],[49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[49] $ 44,736,000    
Ending balance 46,710,000 [36],[48]   $ 44,736,000 [25],[49]
Investment, Identifier [Axis]: Sensor Technology Topco, Inc. (dba Humanetics), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 2,046,000   790,000
Unfunded Commitment 2,732,000   3,987,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Sensor Technology Topco, Inc. (dba Humanetics), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 7.00% [36],[38]   7.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 239,078,000    
Ending balance $ 239,144,000 [36],[38]   $ 239,078,000 [25],[39]
Investment, Identifier [Axis]: Sensor Technology Topco, Inc. (dba Humanetics), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.50% [36],[40]   6.50% [25],[43]
Funded Commitment $ 10,114,000   $ 13,312,000
Unfunded Commitment 10,448,000   7,249,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 13,368,000    
Ending balance $ 10,114,000 [36],[40]   13,368,000 [25],[43]
Investment, Identifier [Axis]: Severin Acquisition, LLC (dba PowerSchool), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 5.00%    
Funded Commitment $ 1,836,000   0
Unfunded Commitment 25,370,000   27,209,000
Fair Value 0 [34]   $ (136,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 1,623,000    
Investment, Identifier [Axis]: Severin Acquisition, LLC (dba PowerSchool), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.75% [40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 128,681,000    
Ending balance $ 128,791,000 [40]   $ 128,681,000 [43]
Investment, Identifier [Axis]: Severin Acquisition, LLC (dba PowerSchool), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 4.75%    
Funded Commitment $ 2,449,000   0
Unfunded Commitment 13,877,000   16,326,000
Fair Value 0 [34]   $ (163,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] 2,245,000    
Investment, Identifier [Axis]: SimonMed, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 5,745,000    
Unfunded Commitment 40,288,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: SimonMed, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 243,779,000    
Investment, Identifier [Axis]: SimonMed, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 30,689,000    
Fair Value [34] $ (153,000)    
Investment, Identifier [Axis]: SimpliSafe Holding Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.25% [40]   6.25% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 141,111,000    
Ending balance $ 140,750,000 [40]   $ 141,111,000 [25],[43]
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[45] 5.00%    
Funded Commitment $ 6,438,000   0
Unfunded Commitment 33,800,000   40,238,000
Fair Value 0 [34]   $ (201,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[45] $ 6,205,000    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 149,384,000    
Ending balance 149,384,000 [38]   $ 149,384,000 [39]
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 20,119,000   20,119,000
Fair Value $ (201,000) [34]   $ (201,000) [1]
Investment, Identifier [Axis]: Sitecore Holding III A/S, First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [48]   7.75% [49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [49] $ 25,889,000    
Ending balance $ 27,404,000 [48]   $ 25,889,000 [49]
Investment, Identifier [Axis]: Sitecore Holding III A/S, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38]   7.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 4,290,000    
Ending balance $ 4,362,000 [38]   $ 4,290,000 [39]
Investment, Identifier [Axis]: Sitecore USA, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38]   7.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 25,865,000    
Ending balance 26,299,000 [38]   $ 25,865,000 [39]
Investment, Identifier [Axis]: Smarsh Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment     10,381,000
Unfunded Commitment     10,381,000
Fair Value [1]     $ 0
Investment, Identifier [Axis]: Smarsh Inc., First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 10,381,000    
Fair Value [34] 0    
Investment, Identifier [Axis]: Smarsh Inc., First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 9,966,000    
Fair Value [34] $ 0    
Investment, Identifier [Axis]: Smarsh Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 93,429,000    
Ending balance $ 108,377,000 [38]   $ 93,429,000 [25],[39]
Investment, Identifier [Axis]: Smarsh Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[40]   5.75% [25],[43]
Funded Commitment $ 1,439,000   $ 332,000
Unfunded Commitment 9,357,000   498,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] 332,000    
Ending balance 1,439,000 [36],[40]   $ 332,000 [25],[43]
Investment, Identifier [Axis]: Soleo Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 15,932,000    
Fair Value [34] $ (40,000)    
Investment, Identifier [Axis]: Soleo Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 111,762,000    
Investment, Identifier [Axis]: Soleo Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 15,932,000    
Fair Value [34] $ (80,000)    
Investment, Identifier [Axis]: Soliant Lower Intermediate, LLC (dba Soliant), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [41],[45]   3.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 66,330,000    
Ending balance 65,416,000 [41],[45]   $ 66,330,000 [43],[44]
Investment, Identifier [Axis]: Soliant Lower Intermediate, LLC (dba Soliant), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 15,556,000   15,556,000
Fair Value (330,000) [34]   $ (156,000) [1]
Investment, Identifier [Axis]: Sonny's Enterprises, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     5.50%
Funded Commitment 3,583,000   $ 3,592,000
Unfunded Commitment 41,416,000   41,416,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 3,574,000    
Ending balance [25],[33],[39]     $ 3,574,000
Investment, Identifier [Axis]: Sonny's Enterprises, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 162,078,000    
Ending balance $ 165,227,000 [36],[38]   $ 162,078,000 [25],[39]
Investment, Identifier [Axis]: Sonny's Enterprises, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Funded Commitment $ 15,023,000   $ 6,475,000
Unfunded Commitment 10,879,000   19,426,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 6,346,000    
Ending balance $ 14,893,000 [36],[38]   $ 6,346,000 [25],[39]
Investment, Identifier [Axis]: Sophos Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [30],[40],[41]   3.50% [27],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[43],[44] $ 19,830,000    
Ending balance 19,656,000 [30],[40],[41]   $ 19,830,000 [27],[43],[44]
Investment, Identifier [Axis]: Southern Air & Heat Holdings, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[39]     5.45%
Funded Commitment 10,499,000   $ 10,526,000
Unfunded Commitment 20,889,000   20,889,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[39] $ 10,526,000    
Ending balance [25],[33],[39]     $ 10,526,000
Investment, Identifier [Axis]: Southern Air & Heat Holdings, LLC, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 10,499,000    
Investment, Identifier [Axis]: Southern Air & Heat Holdings, LLC, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [45] 4.75%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [45] $ 1,101,000    
Investment, Identifier [Axis]: Southern Air & Heat Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[38]   4.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 2,223,000    
Ending balance 1,117,000 [36],[38]   $ 2,223,000 [25],[39]
Investment, Identifier [Axis]: Southern Air & Heat Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 62,000   62,000
Unfunded Commitment 220,000   220,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 30,180,000    
Ending balance $ 39,864,000 [40],[41]   $ 30,180,000 [39],[44]
Investment, Identifier [Axis]: Sovos Compliance, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [40],[41]   4.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 28,920,000    
Ending balance 48,376,000 [40],[41]   $ 28,920,000 [43],[44]
Investment, Identifier [Axis]: Spaceship Purchaser, Inc. (dba Squarespace), First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 7,482,000   7,482,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Spaceship Purchaser, Inc. (dba Squarespace), First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 17,957,000   17,957,000
Fair Value $ 0 [34]   $ (45,000) [1]
Investment, Identifier [Axis]: Spaceship Purchaser, Inc. (dba Squarespace), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 125,074,000    
Ending balance 125,702,000 [38]   $ 125,074,000 [39]
Investment, Identifier [Axis]: Spaceship Purchaser, Inc. (dba Squarespace), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 14,965,000   14,965,000
Fair Value $ 0 [34]   $ (75,000) [1]
Investment, Identifier [Axis]: Spotless Brands, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [45]   5.75% [25],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[51] $ 81,515,000    
Ending balance 81,489,000 [45]   $ 81,515,000 [25],[51]
Investment, Identifier [Axis]: Spotless Brands, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 2,244,000   2,244,000
Fair Value $ 0 [34]   $ (6,000) [1]
Investment, Identifier [Axis]: Spring Education Group, Inc. (fka SSH Group Holdings, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 15,260,000    
Ending balance $ 15,105,000 [38],[41]   $ 15,260,000 [39],[44]
Investment, Identifier [Axis]: Starlight Parent, LLC (dba SolarWinds), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 4.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 31,506,000    
Investment, Identifier [Axis]: Storable, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 64,856,000    
Ending balance $ 64,050,000 [40],[41]   $ 64,856,000 [43],[44]
Investment, Identifier [Axis]: Summit Acquisition Inc. (dba K2 Insurance Services), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [40]   3.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 19,900,000    
Ending balance 20,000,000 [40]   $ 19,900,000 [39]
Investment, Identifier [Axis]: Sunshine Software Holdings, Inc. (dba Cornerstone OnDemand, Inc.), Series A Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 13,999,000    
Ending balance 14,043,000 [29],[37]   13,999,000 [24],[32]
Investment, Identifier [Axis]: TBRS, Inc. (dba TEAM Technologies), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 37,652,000   37,652,000
Fair Value $ 0 [34]   $ (94,000) [1]
Investment, Identifier [Axis]: TBRS, Inc. (dba TEAM Technologies), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 137,366,000    
Ending balance $ 137,022,000 [38]   $ 137,366,000 [39]
Investment, Identifier [Axis]: TBRS, Inc. (dba TEAM Technologies), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[38]   4.75% [25],[39]
Funded Commitment $ 1,255,000   $ 1,255,000
Unfunded Commitment 19,662,000   19,662,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 1,150,000    
Ending balance $ 1,150,000 [36],[38]   $ 1,150,000 [25],[39]
Investment, Identifier [Axis]: TC Holdings, LLC (dba TrialCard), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 209,684,000    
Ending balance 209,154,000 [38]   $ 209,684,000 [25],[39]
Investment, Identifier [Axis]: TC Holdings, LLC (dba TrialCard), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 16,473,000   16,473,000
Fair Value $ 0 [34]   0 [1]
Investment, Identifier [Axis]: TCB Holdings I LLC (dba TricorBraun), Class A Preferred Units      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [29],[37] 14.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [29],[37] $ 84,875,000    
Investment, Identifier [Axis]: THG Acquisition, LLC (dba Hilb), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 367,000   0
Unfunded Commitment 20,349,000   20,716,000
Fair Value $ 0 [34]   $ (104,000) [1]
Investment, Identifier [Axis]: THG Acquisition, LLC (dba Hilb), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[40]   4.75% [25],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[43] $ 92,663,000    
Ending balance 92,629,000 [36],[40]   $ 92,663,000 [25],[43]
Investment, Identifier [Axis]: THG Acquisition, LLC (dba Hilb), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 474,000   769,000
Unfunded Commitment 9,884,000   9,589,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Tacala, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [40],[41]   3.50% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 40,700,000    
Ending balance $ 55,276,000 [40],[41]   $ 40,700,000 [43],[44]
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. (dba Verisk 3E), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [38]   5.75% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 38,253,000    
Ending balance 38,156,000 [38]   $ 38,253,000 [25],[39]
Investment, Identifier [Axis]: Tamarack Intermediate, L.L.C. (dba Verisk 3E), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,336,000   5,336,000
Fair Value $ (27,000) [34]   $ (27,000) [1]
Investment, Identifier [Axis]: Tecta America Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40],[41] 3.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40],[41] $ 37,016,000    
Investment, Identifier [Axis]: Tempo Buyer Corp. (dba Global Claims Services), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [38]   4.75% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 35,428,000    
Ending balance 35,337,000 [38]   $ 35,428,000 [39]
Investment, Identifier [Axis]: Tempo Buyer Corp. (dba Global Claims Services), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 5,159,000   5,159,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: The Shade Store, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [43]     7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] 10,580,000    
Ending balance [43]     $ 10,580,000
Investment, Identifier [Axis]: The Shade Store, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 102,158,000    
Ending balance [39]     $ 102,158,000
Investment, Identifier [Axis]: The Shade Store, LLC, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 6.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 99,393,000    
Investment, Identifier [Axis]: The Shade Store, LLC, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 7.00%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 13,380,000    
Investment, Identifier [Axis]: The Shade Store, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 6.00% [36],[38]   6.00% [25],[39]
Funded Commitment $ 2,463,000   $ 2,592,000
Unfunded Commitment 8,339,000   8,209,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 2,322,000    
Ending balance $ 1,896,000 [36],[38]   $ 2,322,000 [25],[39]
Investment, Identifier [Axis]: Thevelia (US) LLC (dba Tricor), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [30],[38],[41]   3.25% [27],[39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39],[44] $ 22,934,000    
Ending balance 20,941,000 [30],[38],[41]   $ 22,934,000 [27],[39],[44]
Investment, Identifier [Axis]: Thunder Purchaser, Inc. (dba Vector Solutions), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 20,523,000   0
Unfunded Commitment 6,858,000   27,432,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Thunder Purchaser, Inc. (dba Vector Solutions), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 5.25%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 44,664,000    
Investment, Identifier [Axis]: Thunder Purchaser, Inc. (dba Vector Solutions), First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 11,464,000    
Ending balance [39]     $ 11,464,000
Investment, Identifier [Axis]: Thunder Purchaser, Inc. (dba Vector Solutions), First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [39]     5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] 12,680,000    
Ending balance [39]     $ 12,680,000
Investment, Identifier [Axis]: Thunder Purchaser, Inc. (dba Vector Solutions), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 1,021,000   1,021,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Thunder Topco L.P. (dba Vector Solutions), Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 848,000    
Ending balance $ 848,000 [35],[37]   $ 848,000 [31],[32]
Investment, Identifier [Axis]: Tivity Health, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 75,017,000    
Ending balance 74,829,000 [40]   $ 75,017,000 [43]
Investment, Identifier [Axis]: Total Portfolio Company Commitments      
Schedule of Investments [Line Items]      
Funded Commitment 827,401,000    
Unfunded Commitment 3,986,585,000    
Fair Value [34] (12,008,000)    
Investment, Identifier [Axis]: Tricentis Operations Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 10,055,000    
Fair Value [34] $ (50,000)    
Investment, Identifier [Axis]: Tricentis Operations Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [38] 1.38%    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [38] $ 49,771,000    
Investment, Identifier [Axis]: Tricentis Operations Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0    
Unfunded Commitment 6,284,000    
Fair Value [34] $ (63,000)    
Investment, Identifier [Axis]: Tricorbraun Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 50,811,000    
Ending balance 60,182,000 [40],[41]   $ 50,811,000 [43],[44]
Investment, Identifier [Axis]: Troon Golf, L.L.C., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 27,381,000   27,449,000
Unfunded Commitment 27,449,000   27,449,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Troon Golf, L.L.C., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [36],[38]   4.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 382,656,000    
Ending balance 381,696,000 [36],[38]   $ 382,656,000 [25],[39]
Investment, Identifier [Axis]: Troon Golf, L.L.C., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 27,449,000   27,449,000
Fair Value $ 0 [34]   0 [1]
Investment, Identifier [Axis]: Truist Insurance Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 3.00%    
Funded Commitment $ 896,000   0
Unfunded Commitment 6,123,000   7,019,000
Fair Value 0 [34]   $ 0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 896,000    
Investment, Identifier [Axis]: UKG Inc. (dba Ultimate Software), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [38],[41]   3.00% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 18,797,000    
Ending balance 28,533,000 [38],[41]   $ 18,797,000 [43],[44]
Investment, Identifier [Axis]: USIC Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 494,000   148,000
Unfunded Commitment 1,741,000   2,089,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: USIC Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [36],[38]   5.50% [25],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] $ 37,279,000    
Ending balance $ 37,533,000 [36],[38]   $ 37,279,000 [25],[39]
Investment, Identifier [Axis]: USIC Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [36],[38]   5.25% [25],[39]
Funded Commitment $ 2,621,000   $ 1,104,000
Unfunded Commitment 2,207,000   3,725,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[39] 1,007,000    
Ending balance 2,524,000 [36],[38]   1,007,000 [25],[39]
Investment, Identifier [Axis]: USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 258,000   0
Unfunded Commitment 13,712,000   13,971,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [36],[40]   5.00% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 37,238,000    
Ending balance 37,400,000 [36],[40]   $ 37,238,000 [43]
Investment, Identifier [Axis]: USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,975,000   4,975,000
Fair Value 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33],[43]     5.25%
Funded Commitment 20,249,000    
Unfunded Commitment 33,151,000    
Fair Value [34] 0    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33],[43] $ 62,572,000    
Ending balance [25],[33],[43]     $ 62,572,000
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured delayed draw term loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [40] 5.25%    
Funded Commitment     62,572,000
Unfunded Commitment     9,208,000
Fair Value [1]     0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [40] $ 71,624,000    
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured delayed draw term loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[40] 5.00%    
Funded Commitment     0
Unfunded Commitment     53,400,000
Fair Value [1]     $ (200,000)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[40] $ 19,973,000    
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 82,035,000    
Ending balance $ 81,825,000 [38]   $ 82,035,000 [39]
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 68,372,000    
Ending balance 68,200,000 [38]   $ 68,372,000 [39]
Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 8,120,000   8,120,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: VIRTUSA CORPORATION, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 9,734,000    
Ending balance $ 29,519,000 [40],[41]   $ 9,734,000 [43],[44]
Investment, Identifier [Axis]: Velocity HoldCo III Inc. (dba VelocityEHS), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 2,276,000    
Ending balance 2,270,000 [38]   $ 2,276,000 [39]
Investment, Identifier [Axis]: Velocity HoldCo III Inc. (dba VelocityEHS), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 142,000   142,000
Fair Value $ 0 [34]   0 [1]
Investment, Identifier [Axis]: Vensure Employer Services, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [36],[38] 4.50%    
Funded Commitment $ 452,000   0
Unfunded Commitment 32,826,000   34,388,000
Fair Value 0 [34]   $ (189,000) [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Ending balance [36],[38] $ 282,000    
Investment, Identifier [Axis]: Vensure Employer Services, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.00% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 163,956,000    
Ending balance $ 164,998,000 [38]   $ 163,956,000 [39]
Investment, Identifier [Axis]: Vermont Aus Pty Ltd, First lien senior secured AUD term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.75% [30],[71]   5.75% [27],[72]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[72] $ 43,564,000    
Ending balance 43,732,000 [30],[71]   $ 43,564,000 [27],[72]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [25],[33]     4.75%
Funded Commitment 6,290,000   $ 6,290,000
Unfunded Commitment 17,595,000   17,595,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[33] $ 6,258,000    
Ending balance [25],[33]     $ 6,258,000
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.75% [36],[40]   4.75% [43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43] $ 71,296,000    
Ending balance 77,554,000 [36],[40]   $ 71,296,000 [43]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 7,962,000   7,962,000
Fair Value (40,000) [34]   (40,000) [1]
Investment, Identifier [Axis]: Vestwell Holdings, Inc., Series D Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 1,000,000    
Ending balance $ 1,000,000 [35],[37]   $ 1,000,000 [31],[32]
Investment, Identifier [Axis]: Vistage International, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.75% [38],[41]   4.75% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 29,823,000    
Ending balance $ 29,690,000 [38],[41]   $ 29,823,000 [39],[44]
Investment, Identifier [Axis]: Vital Bidco AB (dba Vitamin Well), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[38]   4.50% [27],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[39] $ 223,437,000    
Ending balance $ 226,043,000 [30],[38]   $ 223,437,000 [27],[39]
Investment, Identifier [Axis]: Vital Bidco AB (dba Vitamin Well), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.50% [30],[36],[40]   4.50% [25],[27],[43]
Funded Commitment $ 12,908,000   $ 12,908,000
Unfunded Commitment 40,004,000   40,004,000
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[27],[43] 12,222,000    
Ending balance $ 12,908,000 [30],[36],[40]   $ 12,222,000 [25],[27],[43]
Investment, Identifier [Axis]: WCG Intermediate Corp. (f/k/a Da Vinci Purchaser Corp.) (dba WCG), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.00% [40],[41]   3.50% [42],[43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [42],[43],[44] $ 2,240,000    
Ending balance 29,664,000 [40],[41]   $ 2,240,000 [42],[43],[44]
Investment, Identifier [Axis]: WMC Bidco, Inc. (dba West Monroe), Senior Preferred Stock      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [24],[32] 46,480,000    
Ending balance 48,032,000 [29],[37]   46,480,000 [24],[32]
Investment, Identifier [Axis]: WP Irving Co-Invest, L.P., Partnership Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [27],[31],[32] 1,276,000    
Ending balance 1,276,000 [30],[35],[37]   1,276,000 [27],[31],[32]
Investment, Identifier [Axis]: Walker Edison Furniture Company LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 174,000   966,000
Unfunded Commitment 244,000   216,000
Fair Value 0 [34]   0 [1]
Investment, Identifier [Axis]: Walker Edison Furniture Company LLC, First lien senior secured loan      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [25],[31],[39],[65] 615,000    
Ending balance 1,119,000 [36],[38],[59]   $ 615,000 [25],[31],[39],[65]
Investment, Identifier [Axis]: Walker Edison Furniture Company LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate [31],[39],[65]     6.25%
Funded Commitment 1,333,000   $ 1,333,000
Unfunded Commitment 0   0
Fair Value 0 [34]   0 [1]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[39],[65] 857,000    
Ending balance [31],[39],[65]     857,000
Investment, Identifier [Axis]: Walker Edison Holdco LLC, Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 0    
Ending balance $ 0 [35],[37]   $ 0 [31],[32]
Investment, Identifier [Axis]: Wand Newco 3, Inc. (dba Caliber ), First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.50% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 12,295,000    
Ending balance $ 21,580,000 [40],[41]   $ 12,295,000 [43],[44]
Investment, Identifier [Axis]: When I Work, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.50% [38]   5.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 26,003,000    
Ending balance 25,950,000 [38]   $ 26,003,000 [39]
Investment, Identifier [Axis]: When I Work, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 4,164,000   4,164,000
Fair Value $ (146,000) [34]   $ (146,000) [1]
Investment, Identifier [Axis]: White Cap Supply Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 38,352,000    
Ending balance $ 46,699,000 [40],[41]   $ 38,352,000 [43],[44]
Investment, Identifier [Axis]: Wrench Group LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.00% [38],[41]   4.00% [39],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39],[44] $ 25,992,000    
Ending balance 25,656,000 [38],[41]   $ 25,992,000 [39],[44]
Investment, Identifier [Axis]: XOMA Corporation, Warrants      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 629,000    
Ending balance $ 381,000 [35],[37]   $ 629,000 [31],[32]
Investment, Identifier [Axis]: XPLOR T1, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.50% [38]   3.50% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 50,337,000    
Ending balance $ 49,750,000 [38]   $ 50,337,000 [39]
Investment, Identifier [Axis]: Zelis Cost Management Buyer, Inc., First lien senior secured loan 1      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 2.75% [40],[41]   2.75% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 4,965,000    
Ending balance $ 4,914,000 [40],[41]   $ 4,965,000 [43],[44]
Investment, Identifier [Axis]: Zelis Cost Management Buyer, Inc., First lien senior secured loan 2      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 100,250,000    
Ending balance 99,411,000 [40],[41]   $ 100,250,000 [43],[44]
Investment, Identifier [Axis]: Zendesk, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 35,425,000   35,425,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Zendesk, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 4.99% [38]   5.00% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 145,037,000    
Ending balance 144,683,000 [38]   $ 145,037,000 [39]
Investment, Identifier [Axis]: Zendesk, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Funded Commitment 0   0
Unfunded Commitment 14,587,000   14,587,000
Fair Value $ 0 [34]   $ 0 [1]
Investment, Identifier [Axis]: Zest Acquisition Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 5.25% [38],[41]   5.25% [39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [39] $ 19,730,000    
Ending balance 19,511,000 [38],[41]   $ 19,730,000 [39]
Investment, Identifier [Axis]: Zoro TopCo, Inc., Series A Preferred Equity      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [32],[39] 21,503,000    
Ending balance 22,236,000 [37],[38]   21,503,000 [32],[39]
Investment, Identifier [Axis]: Zoro TopCo, L.P., Class A Common Units      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [31],[32] 15,027,000    
Ending balance $ 15,491,000 [35],[37]   $ 15,027,000 [31],[32]
Investment, Identifier [Axis]: iSolved, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Investment, Basis Spread, Variable Rate 3.25% [40],[41]   3.25% [43],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]      
Beginning balance [43],[44] $ 20,031,000    
Ending balance $ 19,751,000 [40],[41]   $ 20,031,000 [43],[44]
[1] The negative cost and fair value results from unamortized fees, which are capitalized to the investment cost of unfunded commitments.
[2] Certain portfolio company investments are subject to contractual restrictions on sales.
[3] Unless otherwise indicated, all investments are considered Level 3 investments.
[4] Unless otherwise indicated, all investments are non-controlled, non-affiliated investments. Non-controlled, non-affiliated investments are defined as investments in which the Company owns less than 5% of the portfolio company’s outstanding voting securities and does not have the power to exercise control over the management or policies of such portfolio company.
[5] Unless otherwise indicated, represents a co-investment made with the Company’s affiliates in accordance with the terms of exemptive relief that the Company received from the U.S. Securities and Exchange Commission. See Note 3 “Agreements and Related Party Transactions”.
[6] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Revolving Credit Facility, SPV Asset Facilities and CLOs. See Note 5 “Debt”.
[7] Contains a variable rate structure. Bears interest at a rate determined by SOFR.
[8] Instrument is used in a hedge accounting relationship. The associated change in fair value is recorded along with the change in fair value of the hedging item within interest expense.
[9] Contains a variable rate structure. Bears interest at a rate determined by SOFR.
[10] Instrument is used in a hedge accounting relationship. The associated change in fair value is recorded along with the change in fair value of the hedging item within interest expense.
[11] The Company has an International Swaps and Derivatives Association (“ISDA”) agreement with Goldman Sachs Bank USA.
[12] Contains a variable rate structure. Bears interest at a rate determined by BBSY.
[13] Contains a variable rate structure. Bears interest at a rate determined by BBSY.
[14] The associated change in foreign exchange rate of derivative is recorded along with the change in foreign exchange rate of the note within translation of assets and liabilities in foreign currencies.
[15] The associated change in foreign exchange rate of derivative is recorded along with the change in foreign exchange rate of the note within translation of assets and liabilities in foreign currencies.
[16] Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to payment-in-kind (“PIK”) interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement at fair value of an existing portfolio company into this controlled affiliated category from a different category.
[17] Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to payment-in-kind (“PIK”) interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement at fair value of an existing portfolio company into this controlled affiliated category from a different category.
[18] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, return of capital, the amortization of premiums and the exchange of one or more existing securities for one or more new securities.
[19] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, return of capital, the amortization of premiums and the exchange of one or more existing securities for one or more new securities.
[20] Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement at fair value of an existing portfolio company into this controlled affiliated category from a different category.
[21] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, return of capital, the amortization of premiums and the exchange of one or more existing securities for one or more new securities.
[22] In connection with its investment in AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC and AAM Series 2.1 Aviation Feeder, LLC (collectively, “Amergin AssetCo”) the Company made a minority investment in Amergin Asset Management, LLC which has entered into a Servicing Agreement with Amergin AssetCo.
[23] In connection with its investment in AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC and AAM Series 2.1 Aviation Feeder, LLC (collectively, “Amergin AssetCo”) the Company made a minority investment in Amergin Asset Management, LLC which has entered into a Servicing Agreement with Amergin AssetCo.
[24] Investment does not contain a variable rate structure.
[25] Position or portion thereof is a partially unfunded debt or equity commitment. See Note 7 “Commitments and Contingencies”.
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Non-controlled/non-affiliated - delayed draw debt commitments
ACR Group Borrower, LLCFirst lien senior secured delayed draw term loan5/2025$733 $100 $— 
Aerosmith Bidco 1 Limited (dba Audiotonix)First lien senior secured delayed draw term loan7/2027— 108,341 (85)
AI Titan Parent, Inc. (dba Prometheus Group)First lien senior secured delayed draw term loan9/2026— 6,792 (34)
Alera Group, Inc.First lien senior secured delayed draw term loan11/202543,250 2,446 — 
AlphaSense, Inc.First lien senior secured delayed draw term loan6/2029— 716 (7)
AlphaSense, Inc.First lien senior secured delayed draw term loan12/2025— 707 (7)
AmeriLife Holdings LLCFirst lien senior secured delayed draw term loan6/202615,740 16,715 — 
AmSpec Parent, LLCFirst lien senior secured delayed draw term loan12/2027— 5,333 (13)
Appfire Technologies, LLCFirst lien senior secured delayed draw term loan3/2025— 5,562 — 
Appfire Technologies, LLCFirst lien senior secured delayed draw term loan6/2026— 2,688 — 
Aptean Acquiror, Inc. (dba Aptean)First lien senior secured delayed draw term loan1/20261,419 3,974 — 
Artifact Bidco, Inc. (dba Avetta)First lien senior secured delayed draw term loan7/2027— 3,793 — 
Associations, Inc.First lien senior secured delayed draw term loan7/20285,288 26,398 — 
Baker Tilly Advisory Group, L.P.First lien senior secured delayed draw term loan6/2026— 14,940 — 
Bamboo US BidCo LLCFirst lien senior secured delayed draw term loan11/2026— 26,912 — 
Bamboo US BidCo LLCFirst lien senior secured delayed draw term loan3/20258,941 6,173 — 
BCPE Osprey Buyer, Inc. (dba PartsSource)First lien senior secured delayed draw term loan10/20254,568 21,926 — 
Belmont Buyer, Inc. (dba Valenz)First lien senior secured delayed draw term loan1/2026— 11,083 — 
BradyPLUS Holdings, LLC (f/k/a BradyIFS Holdings, LLC)First lien senior secured delayed draw term loan10/20251,109 4,049 — 
BTRS HOLDINGS INC. (dba Billtrust)First lien senior secured delayed draw term loan12/2028913 4 — 
Capstone Acquisition Holdings, Inc.First lien senior secured delayed draw term loan8/2026— 1,789 — 
CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.)First lien senior secured delayed draw term loan1/20266,205 8,530 — 
Chrysaor Bidco s.à r.l. (dba AlterDomus)First lien senior secured delayed draw term loan5/2026— 689 — 
CMG HoldCo, LLC (dba Crete United)First lien senior secured delayed draw term loan10/2026— 10,141 (101)
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
CMG HoldCo, LLC (dba Crete United)First lien senior secured delayed draw term loan11/202514,420 10,916 — 
Computer Services, Inc. (dba CSI)First lien senior secured delayed draw term loan2/2026— 25,566 — 
CoreTrust Purchasing Group LLCFirst lien senior secured delayed draw term loan5/2026— 23,639 — 
Coupa Holdings, LLCFirst lien senior secured delayed draw term loan8/2025— 2,174 — 
Cresset Capital Management, LLCFirst lien senior secured delayed draw term loan9/2025— 7,612 — 
Cresset Capital Management, LLCFirst lien senior secured delayed draw term loan6/2026— 4,478 — 
CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant)First lien senior secured delayed draw term loan8/2026— 12,046 (30)
Databricks, Inc.First lien senior secured delayed draw term loan7/2026— 16,531 (83)
DCG ACQUISITION CORP. (dba DuBois Chemical)First lien senior secured delayed draw term loan6/2026— 15,899 — 
Diamond Mezzanine 24 LLC (dba United Risk)First lien senior secured delayed draw term loan10/2026— 24,700 — 
Dresser Utility Solutions, LLCFirst lien senior secured delayed draw term loan9/2025— 7,537 — 
DuraServ LLCFirst lien senior secured delayed draw term loan6/202624,034 24,418 — 
EET Buyer, Inc. (dba e-Emphasys)First lien senior secured delayed draw term loan4/2026— 8,523 — 
Endries Acquisition, Inc.First lien senior secured delayed draw term loan12/2025— 8,048 (60)
Essential Services Holding Corporation (dba Turnpoint)First lien senior secured delayed draw term loan6/2026— 6,970 (35)
Evolution BuyerCo, Inc. (dba SIAA)First lien senior secured delayed draw term loan12/2025727 3,671 — 
Faraday Buyer, LLC (dba MacLean Power Systems)First lien senior secured delayed draw term loan11/2025— 14,307 — 
FR Flow Control CB LLC (dba Trillium Flow Technologies)First lien senior secured delayed draw term loan6/2026— 28,307 — 
Fullsteam Operations, LLCFirst lien senior secured delayed draw term loan8/2025464 4,536 — 
Fullsteam Operations, LLCFirst lien senior secured delayed draw term loan2/2026354 896 — 
Galls, LLCFirst lien senior secured delayed draw term loan3/20264,312 34,926 — 
Galway Borrower LLCFirst lien senior secured delayed draw term loan7/2026895 48,838 — 
Gehl Foods, LLCFirst lien senior secured delayed draw term loan12/20253,639 5,458 — 
GI Apple Midco LLC (dba Atlas Technical Consultants)First lien senior secured delayed draw term loan4/20251,724 14,090 — 
GS Acquisitionco, Inc. (dba insightsoftware)First lien senior secured delayed draw term loan3/202672 254 — 
Indigo Buyer, Inc. (dba Inovar Packaging Group)First lien senior secured delayed draw term loan7/2026— 13,434 — 
Indikami Bidco, LLC (dba IntegriChain)First lien senior secured delayed draw term loan12/2025375 6,194 — 
Integrated Specialty Coverages, LLCFirst lien senior secured delayed draw term loan1/2025— 1,780 — 
Integrated Specialty Coverages, LLCFirst lien senior secured delayed draw term loan4/2026— 22,020 — 
Integrity Marketing Acquisition, LLCFirst lien senior secured delayed draw term loan8/2026— 53,446 — 
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Interoperability Bidco, Inc. (dba Lyniate)First lien senior secured delayed draw term loan6/2026— 5,079 (127)
Kaseya Inc.First lien senior secured delayed draw term loan6/2025847 3,230 — 
KENE Acquisition, Inc. (dba Entrust Solutions Group)First lien senior secured delayed draw term loan2/2026777 6,695 — 
KPSKY Acquisition, Inc. (dba BluSky)First lien senior secured delayed draw term loan11/202573 6,054 — 
Lakefield Acquisition Corp. (dba Lakefield Veterinary Group)First lien senior secured delayed draw term loan9/2026344 51,256 — 
Lightbeam Bidco, Inc. (dba Lazer Spot)First lien senior secured delayed draw term loan5/202519,608 27,285 — 
Litera Bidco LLCFirst lien senior secured delayed draw term loan11/20264,485 5,067 — 
Litera Bidco LLCFirst lien senior secured delayed draw term loan5/2027— 3,981 (10)
ManTech International CorporationFirst lien senior secured delayed draw term loan6/2025— 2,164 — 
Maple Acquisition, LLC (dba Medicus)First lien senior secured delayed draw term loan5/2026— 20,448 — 
Mario Purchaser, LLC (dba Len the Plumber)First lien senior secured delayed draw term loan10/20252,659 24,114 — 
Minotaur Acquisition, Inc. (dba Inspira Financial)First lien senior secured delayed draw term loan5/2026— 41,960 — 
Monotype Imaging Holdings Inc.First lien senior secured delayed draw term loan2/20263,268 10,759 — 
NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A.First lien senior secured EUR delayed draw term loan3/2027— 22,358 (279)
Nelipak Holding CompanyFirst lien senior secured delayed draw term loan3/2027— 11,787 (147)
OneOncology, LLCFirst lien senior secured delayed draw term loan10/202635,851 35,494 — 
Paris US Holdco, Inc. (dba Precinmac)First lien senior secured delayed draw term loan12/2026— 18,063 (90)
Park Place Technologies, LLCFirst lien senior secured delayed draw term loan9/2025— 13,490 — 
Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.)First lien senior secured delayed draw term loan8/202513,680 3,429 — 
PDI TA Holdings, Inc.First lien senior secured delayed draw term loan2/20268,328 6,584 — 
PerkinElmer U.S. LLCFirst lien senior secured delayed draw term loan5/202621,371 7,141 — 
PetVet Care Centers, LLCFirst lien senior secured delayed draw term loan11/2025— 31,691 (1,030)
Plasma Buyer LLC (dba PathGroup)First lien senior secured delayed draw term loan9/20253,247 816 — 
Pye-Barker Fire & Safety, LLCFirst lien senior secured delayed draw term loan5/202656,865 102,734 — 
Raven Acquisition Holdings, LLC (dba R1 RCM)First lien senior secured delayed draw term loan10/2026— 5,667 — 
RL Datix Holdings (USA), Inc.First lien senior secured delayed draw term loan4/2027— 14,908 — 
Salinger Bidco Inc. (dba Surgical Information Systems)First lien senior secured delayed draw term loan8/2026— 5,742 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured EUR delayed draw term loan9/2025172 834 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured delayed draw term loan9/2025790 3,987 — 
Severin Acquisition, LLC (dba PowerSchool)First lien senior secured delayed draw term loan10/2027— 27,209 (136)
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Simplicity Financial Marketing Group Holdings, Inc.First lien senior secured delayed draw term loan12/2026— 40,238 (201)
Smarsh Inc.First lien senior secured delayed draw term loan2/202510,381 10,381 — 
Sonny's Enterprises, LLCFirst lien senior secured delayed draw term loan6/20263,592 41,416 — 
Southern Air & Heat Holdings, LLCFirst lien senior secured delayed draw term loan7/202510,526 20,889 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured delayed draw term loan10/2026— 7,482 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured delayed draw term loan10/2027— 17,957 (45)
STS PARENT, LLC (dba STS Aviation Group)First lien senior secured delayed draw term loan10/2026— 37,550 (94)
TBRS, Inc. (dba TEAM Technologies)First lien senior secured delayed draw term loan11/2026— 37,652 (94)
THG Acquisition, LLC (dba Hilb)First lien senior secured delayed draw term loan10/2026— 20,716 (104)
Thunder Purchaser, Inc. (dba Vector Solutions)First lien senior secured delayed draw term loan10/2026— 27,432 — 
Troon Golf, L.L.C.First lien senior secured delayed draw term loan9/202627,449 27,449 — 
Unified Women's Healthcare, LPFirst lien senior secured delayed draw term loan3/202662,572 9,208 — 
Unified Women's Healthcare, LPFirst lien senior secured delayed draw term loan10/2026— 53,400 (200)
USIC Holdings, Inc.First lien senior secured delayed draw term loan9/2026148 2,089 — 
USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners)First lien senior secured delayed draw term loan8/2026— 13,971 — 
Vensure Employer Services, Inc.First lien senior secured delayed draw term loan9/2031— 34,388 (189)
Vessco Midco Holdings, LLCFirst lien senior secured delayed draw term loan7/20266,290 17,595 — 
Walker Edison Furniture Company LLCFirst lien senior secured delayed draw term loan3/2027966 216 — 
Zendesk, Inc.First lien senior secured delayed draw term loan11/2025— 35,425 — 
Non-controlled/affiliated - delayed draw debt commitments
Pluralsight, LLCFirst lien senior secured delayed draw term loan8/2029— 496 — 
Non-controlled/non-affiliated - revolving debt commitments
ACR Group Borrower, LLCFirst lien senior secured revolving loan3/2026— 875 (15)
Activate Holdings (US) Corp. (dba Absolute Software)First lien senior secured revolving loan7/2029— 352 — 
Aerosmith Bidco 1 Limited (dba Audiotonix)First lien senior secured revolving loan7/2030— 44,919 (112)
AI Titan Parent, Inc. (dba Prometheus Group)First lien senior secured revolving loan8/2031— 4,245 (42)
AmeriLife Holdings LLCFirst lien senior secured revolving loan8/2028— 16,273 (81)
Anaplan, Inc.First lien senior secured revolving loan6/2028— 16,528 — 
Appfire Technologies, LLCFirst lien senior secured revolving loan3/2028117 1,516 — 
Aptean Acquiror, Inc. (dba Aptean)First lien senior secured revolving loan1/2031— 7,282 (18)
Artifact Bidco, Inc. (dba Avetta)First lien senior secured revolving loan7/2030— 2,710 (14)
Ascend Buyer, LLC (dba PPC Flexible Packaging)First lien senior secured revolving loan9/20271,702 3,404 — 
Associations, Inc.First lien senior secured revolving loan7/202812,695 12,695 — 
Avalara, Inc.First lien senior secured revolving loan10/2028— 7,045 — 
AWP Group Holdings, Inc.First lien senior secured revolving loan12/2030290 5,515 — 
Azurite Intermediate Holdings, Inc. (dba Alteryx, Inc.)First lien senior secured revolving loan3/2031— 1,995 (15)
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Baker Tilly Advisory Group, L.P.First lien senior secured revolving loan6/2030— 20,935 (105)
Bamboo US BidCo LLCFirst lien senior secured revolving loan10/2029— 20,128 — 
Bayshore Intermediate #2, L.P. (dba Boomi)First lien senior secured revolving loan10/2027— 18,336 — 
BCPE Osprey Buyer, Inc. (dba PartsSource)First lien senior secured revolving loan8/20263,103 1,552 — 
BCPE Pequod Buyer, Inc. (dba Envestnet)First lien senior secured revolving loan11/2029— 16,634 (83)
BCTO BSI Buyer, Inc. (dba Buildertrend)First lien senior secured revolving loan12/2026— 161 — 
Belmont Buyer, Inc. (dba Valenz)First lien senior secured revolving loan6/20292,217 4,433 — 
Blast Bidco Inc. (dba Bazooka Candy Brands)First lien senior secured revolving loan10/2029— 4,179 — 
Brightway Holdings, LLCFirst lien senior secured revolving loan12/2027842 1,263 — 
Broadcast Music, Inc. (fka Otis Merger Sub, Inc.)First lien senior secured revolving loan2/2030— 6,271 (47)
BTRS HOLDINGS INC. (dba Billtrust)First lien senior secured revolving loan12/2028434 723 — 
Canadian Hospital Specialties LimitedFirst lien senior secured revolving loan4/2027255 158 — 
Catalis Intermediate, Inc. (fka GovBrands Intermediate, Inc.)First lien senior secured revolving loan8/2027303 577 — 
Certinia Inc.First lien senior secured revolving loan8/2029— 4,412 — 
CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.)First lien senior secured revolving loan1/2030— 3,692 — 
CivicPlus, LLCFirst lien senior secured revolving loan8/2027— 2,244 — 
CMG HoldCo, LLC (dba Crete United)First lien senior secured revolving loan5/20281,442 7,211 — 
CoreTrust Purchasing Group LLCFirst lien senior secured revolving loan10/2029— 14,183 — 
Coupa Holdings, LLCFirst lien senior secured revolving loan2/2029— 1,664 — 
CPM Holdings, Inc.First lien senior secured revolving loan6/2028— 5,000 (161)
Creek Parent, Inc. (dba Catalent)First lien senior secured revolving loan12/2031— 42,297 (740)
Cresset Capital Management, LLCFirst lien senior secured revolving loan6/2029— 2,239 — 
Crewline Buyer, Inc. (dba New Relic)First lien senior secured revolving loan11/2030— 17,226 (215)
CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant)First lien senior secured revolving loan8/2031— 30,115 (75)
D4C Dental Brands, Inc.First lien senior secured revolving loan11/2029— 11,346 (113)
DCG ACQUISITION CORP. (dba DuBois Chemical)First lien senior secured revolving loan6/2031— 15,899 (79)
Denali BuyerCo, LLC (dba Summit Companies)First lien senior secured revolving loan9/2027— 9,963 — 
Diamond Mezzanine 24 LLC (dba United Risk)*First lien senior secured revolving loan10/20306,175 — — 
Disco Parent, Inc. (dba Duck Creek Technologies, Inc.)First lien senior secured revolving loan3/2029— 91 (1)
Dresser Utility Solutions, LLCFirst lien senior secured revolving loan3/2029— 10,552 (26)
DuraServ LLCFirst lien senior secured revolving loan6/2030— 24,256 (121)
Eagle Family Foods Group LLCFirst lien senior secured revolving loan8/2030— 20,344 (102)
EET Buyer, Inc. (dba e-Emphasys)First lien senior secured revolving loan11/2027— 3,387 — 
Entrata, Inc.First lien senior secured revolving loan7/2028— 513 — 
Essential Services Holding Corporation (dba Turnpoint)First lien senior secured revolving loan6/2030— 4,357 (44)
Evolution BuyerCo, Inc. (dba SIAA)First lien senior secured revolving loan4/2027— 676 — 
Fiesta Purchaser, Inc. (dba Shearer's Foods)First lien senior secured revolving loan2/2029— 16,615 (3)
Finastra USA, Inc.First lien senior secured revolving loan9/202910,631 6,461 — 
Forescout Technologies, Inc.First lien senior secured revolving loan5/2030— 1,320 (7)
Formerra, LLCFirst lien senior secured revolving loan11/2028— 526 (7)
Fortis Solutions Group, LLCFirst lien senior secured revolving loan10/20272,361 4,385 — 
FR Flow Control CB LLC (dba Trillium Flow Technologies)First lien senior secured revolving loan12/2029— 23,160 (174)
Fullsteam Operations, LLCFirst lien senior secured revolving loan11/2029— 500 — 
Galls, LLCFirst lien senior secured revolving loan3/2030— 15,697 — 
Galway Borrower LLCFirst lien senior secured revolving loan9/2028524 5,742 — 
Gaylord Chemical Company, L.L.C.First lien senior secured revolving loan12/20272,066 1,907 — 
Gerson Lehrman Group, Inc.First lien senior secured revolving loan12/2027— 8,404 (21)
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
GI Apple Midco LLC (dba Atlas Technical Consultants)First lien senior secured revolving loan4/20294,274 6,807 — 
GI Ranger Intermediate, LLC (dba Rectangle Health)First lien senior secured revolving loan10/2027195 1,478 — 
Granicus, Inc.First lien senior secured revolving loan1/2031— 4,633 — 
GS Acquisitionco, Inc. (dba insightsoftware)First lien senior secured revolving loan5/2028— 247 (2)
Hercules Borrower, LLC (dba The Vincit Group)First lien senior secured revolving loan12/2026— 96 — 
Hissho Parent, LLCFirst lien senior secured revolving loan5/2029— 11,009 — 
Home Service TopCo IV, Inc.First lien senior secured revolving loan12/2027— 3,359 — 
Hyland Software, Inc.First lien senior secured revolving loan9/2029— 6,978 — 
Icefall Parent, Inc. (dba EngageSmart)First lien senior secured revolving loan1/2030— 2,749 — 
Ideal Image Development, LLCFirst lien senior secured revolving loan2/2029732 183 — 
Ideal Image Development, LLC*First lien senior secured revolving loan2/202933 — — 
Ideal Tridon Holdings, Inc.First lien senior secured revolving loan4/2028— 8,630 — 
IG Investments Holdings, LLC (dba Insight Global)First lien senior secured revolving loan9/2028— 4,866 — 
Indigo Buyer, Inc. (dba Inovar Packaging Group)First lien senior secured revolving loan5/2028— 12,700 — 
Indikami Bidco, LLC (dba IntegriChain)First lien senior secured revolving loan6/20301,689 3,003 — 
Integrated Specialty Coverages, LLCFirst lien senior secured revolving loan7/2029— 5,934 — 
Integrity Marketing Acquisition, LLCFirst lien senior secured revolving loan8/2028— 17,886 — 
Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.)*First lien senior secured revolving loan8/20262,049 — — 
Interoperability Bidco, Inc. (dba Lyniate)First lien senior secured revolving loan3/2028313 5,705 — 
IRI Group Holdings, Inc. (f/k/a Circana Group, L.P. (f/k/a The NPD Group, L.P.))First lien senior secured revolving loan12/20272,517 11,750 — 
JS Parent, Inc. (dba Jama Software)First lien senior secured revolving loan4/2031— 88 — 
KABAFUSION Parent, LLCFirst lien senior secured revolving loan11/2031— 8,903 (89)
Kaseya Inc.First lien senior secured revolving loan6/20291,097 3,256 — 
KENE Acquisition, Inc. (dba Entrust Solutions Group)First lien senior secured revolving loan2/2031— 2,242 (28)
KRIV Acquisition Inc. (dba Riveron)First lien senior secured revolving loan7/2029— 10,944 — 
KWOL Acquisition Inc. (dba Worldwide Clinical Trials)First lien senior secured revolving loan12/2029— 23,568 — 
KWOR Acquisition, Inc. (dba Alacrity Solutions)*First lien senior secured revolving loan12/20273,415 — — 
Lakefield Acquisition Corp. (dba Lakefield Veterinary Group)First lien senior secured revolving loan9/2029— 8,600 (43)
Lightbeam Bidco, Inc. (dba Lazer Spot)First lien senior secured revolving loan5/2029— 11,685 — 
Lignetics Investment Corp.First lien senior secured revolving loan11/20268,412 3,059 — 
Litera Bidco LLCFirst lien senior secured revolving loan5/2028— 2,266 (6)
Magnet Forensics, LLC (f/k/a Grayshift, LLC)First lien senior secured revolving loan7/2028— 2,419 — 
ManTech International CorporationFirst lien senior secured revolving loan9/2028— 1,806 — 
Maple Acquisition, LLC (dba Medicus)First lien senior secured revolving loan5/2030— 15,336 — 
Mario Purchaser, LLC (dba Len the Plumber)First lien senior secured revolving loan4/20282,411 5,627 — 
MHE Intermediate Holdings, LLC (dba OnPoint Group)First lien senior secured revolving loan7/2027714 2,857 — 
Milan Laser Holdings LLCFirst lien senior secured revolving loan4/2026— 2,553 — 
Ministry Brands Holdings, LLCFirst lien senior secured revolving loan12/2027— 4,746 (36)
Minotaur Acquisition, Inc. (dba Inspira Financial)First lien senior secured revolving loan6/2030— 25,814 (129)
Mitnick Corporate Purchaser, Inc.First lien senior secured revolving loan5/20271,700 7,675 — 
Monotype Imaging Holdings Inc.First lien senior secured revolving loan2/2030— 21,041 (53)
Natural Partners, LLCFirst lien senior secured revolving loan11/2027— 11,814 (59)
NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A.First lien senior secured EUR revolving loan3/20311,367 2,803 — 
Nelipak Holding CompanyFirst lien senior secured revolving loan3/20313,695 5,102 — 
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Neptune Holdings, Inc. (dba NexTech)First lien senior secured revolving loan8/2029— 4,118 — 
NMI Acquisitionco, Inc. (dba Network Merchants)First lien senior secured revolving loan9/2028— 558 — 
Notorious Topco, LLC (dba Beauty Industry Group)First lien senior secured revolving loan5/2027— 5,282 (581)
OAC Holdings I Corp. (dba Omega Holdings)First lien senior secured revolving loan3/2028— 2,572 (19)
OB Hospitalist Group, Inc.First lien senior secured revolving loan9/2027— 7,993 (20)
Ole Smoky Distillery, LLCFirst lien senior secured revolving loan3/2028— 3,302 (25)
OneOncology, LLCFirst lien senior secured revolving loan6/2029— 14,269 — 
Oranje Holdco, Inc. (dba KnowBe4)First lien senior secured revolving loan2/2029— 10,148 — 
Paris US Holdco, Inc. (dba Precinmac)First lien senior secured revolving loan12/2031— 9,032 (90)
Park Place Technologies, LLCFirst lien senior secured revolving loan3/20302,900 7,217 — 
Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.)First lien senior secured revolving loan1/2028— 88 — 
PDI TA Holdings, Inc.First lien senior secured revolving loan2/2031— 6,560 (66)
Peter C. Foy & Associates Insurance Services, LLC (dba PCF Insurance Services)First lien senior secured revolving loan11/2027— 2,570 — 
PetVet Care Centers, LLCFirst lien senior secured revolving loan11/2029— 33,258 (1,413)
Phantom Purchaser, Inc.First lien senior secured revolving loan9/2031— 11,437 (86)
Ping Identity Holding Corp.First lien senior secured revolving loan10/2028— 6,597 — 
Plasma Buyer LLC (dba PathGroup)First lien senior secured revolving loan5/20286,853 5,384 — 
PPV Intermediate Holdings, LLCFirst lien senior secured revolving loan8/2029— 11,854 — 
Premise Health Holding Corp.First lien senior secured revolving loan2/2030— 8,191 (20)
Pye-Barker Fire & Safety, LLCFirst lien senior secured revolving loan5/20304,213 29,489 — 
QAD, Inc.First lien senior secured revolving loan11/2027— 6,000 (15)
Quva Pharma, Inc.First lien senior secured revolving loan4/2026382 73 — 
Relativity ODA LLCFirst lien senior secured revolving loan5/2029— 2,797 (7)
Rhea Parent, Inc.First lien senior secured revolving loan12/2030— 43,315 (433)
RL Datix Holdings (USA), Inc.First lien senior secured revolving loan10/20301,650 11,403 — 
SailPoint Technologies Holdings, Inc.First lien senior secured revolving loan8/2028— 5,718 — 
Salinger Bidco Inc. (dba Surgical Information Systems)First lien senior secured revolving loan5/2031— 5,742 (14)
Securonix, Inc.First lien senior secured revolving loan4/2028120 5,219 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured revolving loan5/202813,312 7,249 — 
Severin Acquisition, LLC (dba PowerSchool)First lien senior secured revolving loan10/2031— 16,326 (163)
Simplicity Financial Marketing Group Holdings, Inc.First lien senior secured revolving loan12/2031— 20,119 (201)
Smarsh Inc.First lien senior secured revolving loan2/2029332 498 — 
Soliant Lower Intermediate, LLC (dba Soliant)First lien senior secured revolving loan6/2031— 15,556 (156)
Sonny's Enterprises, LLCFirst lien senior secured revolving loan8/20276,475 19,426 — 
Southern Air & Heat Holdings, LLCFirst lien senior secured revolving loan10/202762 220 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured revolving loan10/2031— 14,965 (75)
Spotless Brands, LLCFirst lien senior secured revolving loan7/2028— 2,244 (6)
STS PARENT, LLC (dba STS Aviation Group)First lien senior secured revolving loan10/20306,947 8,073 — 
SWK BUYER, Inc. (dba Stonewall Kitchen)First lien senior secured revolving loan3/2029— 5,579 (167)
Tamarack Intermediate, L.L.C. (dba Verisk 3E)First lien senior secured revolving loan3/2028— 5,336 (27)
TBRS, Inc. (dba TEAM Technologies)First lien senior secured revolving loan11/20301,255 19,662 — 
TC Holdings, LLC (dba TrialCard)First lien senior secured revolving loan4/2027— 16,473 — 
Tempo Buyer Corp. (dba Global Claims Services)First lien senior secured revolving loan8/2027— 5,159 — 
The Shade Store, LLCFirst lien senior secured revolving loan10/20282,592 8,209 — 
THG Acquisition, LLC (dba Hilb)First lien senior secured revolving loan10/2031769 9,589 — 
Thunder Purchaser, Inc. (dba Vector Solutions)First lien senior secured revolving loan6/2027— 1,021 — 
Troon Golf, L.L.C.First lien senior secured revolving loan8/2028— 27,449 — 
Truist Insurance Holdings, LLCFirst lien senior secured revolving loan5/2029— 7,019 — 
Portfolio CompanyCommitment TypeCommitment Expiration Date
Funded Commitment
Unfunded
Commitment
Fair Value(34)
Unified Women's Healthcare, LPFirst lien senior secured revolving loan6/2029— 8,120 — 
USIC Holdings, Inc.First lien senior secured revolving loan9/20311,104 3,725 — 
USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners)First lien senior secured revolving loan12/2029— 4,975 — 
Velocity HoldCo III Inc. (dba VelocityEHS)First lien senior secured revolving loan4/2026— 142 — 
Vessco Midco Holdings, LLCFirst lien senior secured revolving loan7/2031— 7,962 (40)
Vital Bidco AB (dba Vitamin Well)First lien senior secured revolving loan10/203012,908 40,004 — 
Walker Edison Furniture Company LLC*First lien senior secured revolving loan3/20271,333 — — 
When I Work, Inc.First lien senior secured revolving loan11/2027— 4,164 (146)
Zendesk, Inc.First lien senior secured revolving loan11/2028— 14,587 — 
Non-controlled/affiliated - revolving debt commitments
Pluralsight, LLCFirst lien senior secured revolving loan8/2029— 198 — 
Controlled/affiliated - equity commitments
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLCLLC InterestN/A26,763 59,032 — 
AAM Series 2.1 Aviation Feeder, LLCLLC InterestN/A25,601 27,444 — 
LSI Financing LLCCommon EquityN/A288,704 5,738 — 
Total Portfolio Company Commitments$917,516 $3,192,745 $(9,837)
[26] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company, including through a management agreement (“controlled affiliate”). The Company’s investments in controlled affiliates for the period ended December 31, 2024 were as follows:
CompanyFair value as of December 31, 2023
Gross Additions(a)
Gross Reductions(b)
Net Change in Unrealized Gain/(Loss)Realized Gain/(Loss)Fair value as of December 31, 2024Dividend IncomeInterest and PIK IncomeOther Income
AAM Series 2.1 Aviation Feeder, LLC(c)$78,476 $50,774 $(57,983)$6,413 $— $77,680 $— $4,970 $— 
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC(c)64,839 10,236 (3,475)3,512 — 75,112 — 5,035 — 
Blue Owl Credit SLF LLC— 11,781 (7,510)23 — 4,294 80 — — 
Fifth Season Investments LLC156,794 115,658 (70,093)20,915 — 223,274 23,832 — — 
LSI Financing LLC— 397,270 (108,567)5,072 — 293,775 1,511 — — 
OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC)273,441 53,375 — (15,207)— 311,609 53,039 — — 
Total$573,550 $639,094 $(247,628)$20,728 $— $985,744 $78,462 $10,005 $— 
[27] This portfolio company is not a qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 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 total assets. As of December 31, 2024, non-qualifying assets represented 13.2% of total assets as calculated in accordance with the regulatory requirements.
[28] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company, including through a management agreement (“controlled affiliate”). The Company’s investments in controlled affiliates for the period ended March 31, 2025 were as follows:
CompanyFair value as of December 31, 2024
Gross Additions(a)
Gross Reductions(b)
Net Change in Unrealized Gain/(Loss)Realized Gain/(Loss)Fair value as of March 31, 2025Dividend IncomeInterest and PIK IncomeOther Income
AAM Series 2.1 Aviation Feeder, LLC(c)
$77,680 $11,279 $(938)$3,761 $— $91,782 $— $1,406 $— 
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC(c)
75,112 2,429 (85)4,997 — 82,453 — 1,359 — 
Blue Owl Credit SLF LLC4,294 1,231 — (198)— 5,327 166 — — 
Fifth Season Investments LLC223,274 21,027 — 982 — 245,283 8,061 — — 
LSI Financing LLC293,775 4,861 (77,251)3,537 — 224,922 7,070 — — 
OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC)311,609 — — (19,354)— 292,255 9,590 — — 
Total$985,744 $40,827 $(78,274)$(6,275)$— $942,022 $24,887 $2,765 $— 
________
(a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to payment-in-kind (“PIK”) interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement at fair value of an existing portfolio company into this controlled affiliated category from a different category.
(b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, return of capital, the amortization of premiums and the exchange of one or more existing securities for one or more new securities.
(c) In connection with its investment in AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC and AAM Series 2.1 Aviation Feeder, LLC (collectively, “Amergin AssetCo”) the Company made a minority investment in Amergin Asset Management, LLC which has entered into a Servicing Agreement with Amergin AssetCo.
[29] Investment does not contain a variable rate structure.
[30] This portfolio company is not a qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 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 total assets. As of March 31, 2025, non-qualifying assets represented 12.4% of total assets as calculated in accordance with the regulatory requirements.
[31] Investment is non-income producing.
[32] Security acquired in transaction exempt from registration under the Securities Act of 1933, and may be deemed to be “restricted security” under the Securities Act. As of December 31, 2024, the aggregate fair value of these securities is $1.51 billion, or 10.4% of the Company’s net assets. The acquisition dates of the restricted securities are as follows:
Portfolio CompanyInvestmentAcquisition Date
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC**LLC InterestJuly 1, 2022
AAM Series 2.1 Aviation Feeder, LLC**LLC InterestJuly 1, 2022
Accelerate Topco Holdings, LLCCommon UnitsSeptember 1, 2022
Amergin Asset Management, LLCClass A UnitsJuly 1, 2022
ASP Conair Holdings LPClass A UnitsMay 17, 2021
AlphaSense, LLCSeries E Preferred SharesJune 27, 2024
BCTO WIW Holdings, Inc. (dba When I Work)Class A Common StockNovember 2, 2021
BEHP Co-Investor II, L.P.LP InterestMay 6, 2022
Blue Owl Credit SLF LLC*LLC InterestMay 6, 2024
Brooklyn Lender Co-Invest 2, L.P. (dba Boomi)Common UnitsOctober 1, 2021
CD&R Value Building Partners I, L.P. (dba Belron)LP InterestDecember 2, 2021
Denali Holding, LP (dba Summit Companies)Class A UnitsSeptember 14, 2021
Dodge Construction Network Holdings, L.P.Class A-2 Common UnitsFebruary 23, 2022
Dodge Construction Network Holdings, L.P.Series A Preferred UnitsFebruary 23, 2022
Elliott Alto Co-Investor Aggregator L.P.LP InterestSeptember 28, 2022
Portfolio CompanyInvestmentAcquisition Date
Evolution Parent, LP (dba SIAA)LP InterestApril 30, 2021
Fifth Season Investments LLC**Class A UnitsOctober 17, 2022
Gloves Holdings, LP (dba Protective Industrial Products)LP InterestDecember 28, 2020
GrowthCurve Capital Sunrise Co-Invest LP (dba Brightway)LP InterestDecember 16, 2021
Hercules Buyer, LLC (dba The Vincit Group)Common UnitsDecember 15, 2020
Hissho Sushi Holdings, LLCClass A UnitsMay 17, 2022
Hockey Parent Holdings, L.P.Class A UnitsSeptember 14, 2023
Ideal Topco, L.P.Class A-1 Preferred UnitsFebruary 20, 2024
Ideal Topco, L.P.Class A-2 Common UnitsFebruary 20, 2024
Insight CP (Blocker) Holdings, L.P. (dba CivicPlus, LLC)LP InterestJune 8, 2022
Knockout Intermediate Holdings I Inc. (dba Kaseya Inc.)Perpetual Preferred StockJune 22, 2022
KOBHG Holdings, L.P. (dba OB Hospitalist)Class A InterestsSeptember 27, 2021
KPCI Holdings, L.P.Class A UnitsNovember 25, 2020
KWOL Acquisition Inc. (dba Worldwide Clinical Trials)Class A InterestDecember 12, 2023
LSI Financing 1 DAC**Preferred equityDecember 14, 2022
LSI Financing LLC**Common EquityNovember 25, 2024
Maia Aggregator, LPClass A-2 UnitsFebruary 1, 2022
Bird Holding B.V. (fka MessageBird Holding B.V.)Extended Series C WarrantsMay 5, 2021
Metis HoldCo, Inc. (dba Mavis Tire Express Services)Series A Convertible Preferred StockMay 3, 2021
Minerva Holdco, Inc.Series A Preferred StockFebruary 14, 2022
Orange Blossom Parent, Inc.Common EquityJuly 29, 2022
OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC)*LLC InterestNovember 2, 2022
Patriot Holdings SCSp (dba Corza Health, Inc.)Class A UnitsJanuary 29, 2021
Patriot Holdings SCSp (dba Corza Health, Inc.)Class B UnitsJanuary 29, 2021
PCF Holdco, LLC (dba PCF Insurance Services)Series A Preferred UnitsFebruary 16, 2023
PCF Holdco, LLC (dba PCF Insurance Services)Class A UnitsNovember 1, 2021
PCF Holdco, LLC (dba PCF Insurance Services)Class A Unit WarrantsFebruary 16, 2023
Paradigmatic Holdco LLC (dba Pluralsight)Common stockAugust 22, 2024
Project Alpine Co-Invest Fund, LPLP InterestJune 13, 2022
Project Hotel California Co-Invest Fund, L.P.LP InterestAugust 9, 2022
Rhea Acquisition Holdings, LPSeries A-2 UnitsFebruary 18, 2022
Romulus Intermediate Holdings 1 Inc. (dba PetVet Care Centers)Series A Preferred StockNovember 15, 2023
Sunshine Software Holdings, Inc. (dba Cornerstone OnDemand, Inc.)Series A Preferred StockOctober 14, 2021
Thunder Topco L.P. (dba Vector Solutions)Common UnitsJune 30, 2021
Vestwell Holdings, Inc.Series D Preferred StockDecember 20, 2023
Walker Edison Holdco LLCCommon EquityMarch 1, 2023
WMC Bidco, Inc. (dba West Monroe)Senior Preferred StockNovember 9, 2021
WP Irving Co-Invest, L.P.Partnership UnitsMay 18, 2022
XOMA CorporationWarrantsDecember 15, 2023
Zoro TopCo, L.P.Class A Common UnitsNovember 22, 2022
Zoro TopCo, Inc.Series A Preferred StockNovember 22, 2022
* Refer to Note 4 “Investments - OCIC SLF LLC” and “Investments - Blue Owl Credit SLF LLC”, for further information.
** Refer to Note 3 “Agreements and Related Party Transactions - Controlled/Affiliated Portfolio Companies”.
[33] The date disclosed represents the commitment period of the unfunded term loan. Upon expiration of the commitment period, the funded portion of the term loan may be subject to a longer maturity date.
[34] The negative cost and fair value results from unamortized fees, which are capitalized to the investment cost of unfunded commitments.
[35] Investment is non-income producing.
[36] Position or portion thereof is a partially unfunded debt or equity commitment. See Note 7 “Commitments and Contingencies”.
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Non-controlled/non-affiliated - delayed draw debt commitments
ACR Group Borrower, LLCFirst lien senior secured delayed draw term loan5/2025$731 $100 $— 
Aerosmith Bidco 1 Limited (dba Audiotonix)First lien senior secured delayed draw term loan7/2027— 108,341 — 
AI Titan Parent, Inc. (dba Prometheus Group)First lien senior secured delayed draw term loan9/2026— 6,792 (34)
AlphaSense, Inc.First lien senior secured delayed draw term loan6/2029— 716 (5)
AlphaSense, Inc.First lien senior secured delayed draw term loan12/2025— 707 (5)
AmeriLife Holdings LLCFirst lien senior secured delayed draw term loan2/2027— 34,240 (86)
AmeriLife Holdings LLCFirst lien senior secured delayed draw term loan6/202615,700 16,715 — 
AmSpec Parent, LLCFirst lien senior secured delayed draw term loan12/2027— 5,333 — 
Appfire Technologies, LLCFirst lien senior secured delayed draw term loan12/2025— 4,215 — 
Appfire Technologies, LLCFirst lien senior secured delayed draw term loan6/2026— 2,688 — 
Aptean Acquiror, Inc. (dba Aptean)First lien senior secured delayed draw term loan1/20261,727 2,247 — 
Aptean Acquiror, Inc. (dba Aptean)First lien senior secured delayed draw term loan7/2025— 40,254 — 
Aramsco, Inc.First lien senior secured delayed draw term loan10/2025— 4,678 (316)
Arctic Holdco, LLC (dba Novvia Group)First lien senior secured delayed draw term loan1/20275,089 12,665 — 
Artifact Bidco, Inc. (dba Avetta)First lien senior secured delayed draw term loan7/2027— 3,793 — 
Associations, Inc.First lien senior secured delayed draw term loan7/20287,860 23,792 — 
Baker Tilly Advisory Group, LPFirst lien senior secured delayed draw term loan6/2026— 14,940 (37)
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Bamboo US BidCo LLCFirst lien senior secured delayed draw term loan11/2026— 26,912 — 
BCPE Osprey Buyer, Inc. (dba PartsSource)First lien senior secured delayed draw term loan10/20254,557 21,926 — 
Belmont Buyer, Inc. (dba Valenz)First lien senior secured delayed draw term loan1/2026— 11,083 — 
BradyPLUS Holdings, LLC (f/k/a BradyIFS Holdings, LLC)First lien senior secured delayed draw term loan10/20251,107 4,049 — 
Cambrex CorporationFirst lien senior secured delayed draw term loan3/2027— 33,294 (166)
Capstone Acquisition Holdings, Inc.First lien senior secured delayed draw term loan8/2026— 1,789 (2)
CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.)First lien senior secured delayed draw term loan1/20266,190 8,530 — 
Chrysaor Bidco s.à r.l. (dba AlterDomus)First lien senior secured delayed draw term loan5/2026— 689 — 
Citrin Cooperman Advisors LLCFirst lien senior secured delayed draw term loan3/2027— 1,061 (3)
Cohnreznick Advisory LLCFirst lien senior secured delayed draw term loan3/2027— 8,459 — 
Clydesdale Acquisition Holdings, Inc. (dba Novolex)First lien senior secured delayed draw term loan12/202586 2,320 — 
CMG HoldCo, LLC (dba Crete United)First lien senior secured delayed draw term loan10/2026— 10,141 (51)
CMG HoldCo, LLC (dba Crete United)First lien senior secured delayed draw term loan11/202514,384 10,916 — 
Computer Services, Inc. (dba CSI)First lien senior secured delayed draw term loan2/2026— 25,566 — 
CoreTrust Purchasing Group LLCFirst lien senior secured delayed draw term loan5/2026— 23,639 — 
Coupa Holdings, LLCFirst lien senior secured delayed draw term loan8/2025— 2,174 — 
CCM Midco, LLC (f/k/a Cresset Capital Management, LLC)First lien senior secured delayed draw term loan9/2025— 7,612 — 
CCM Midco, LLC (f/k/a Cresset Capital Management, LLC)First lien senior secured delayed draw term loan6/2026— 4,478 — 
CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant)First lien senior secured delayed draw term loan8/2026— 12,046 — 
Databricks, Inc.First lien senior secured delayed draw term loan7/2026— 16,531 — 
DCG ACQUISITION CORP. (dba DuBois Chemical)First lien senior secured delayed draw term loan6/2026— 15,899 — 
Diamond Mezzanine 24 LLC (dba United Risk)First lien senior secured delayed draw term loan10/2026— 24,700 — 
Dresser Utility Solutions, LLCFirst lien senior secured delayed draw term loan9/2025— 7,537 — 
Denali BuyerCo, LLC (dba Summit Companies)First lien senior secured delayed draw term loan1/202715,182 55,309 — 
DuraServ LLCFirst lien senior secured delayed draw term loan3/20272,842 69,582 — 
EET Buyer, Inc. (dba e-Emphasys)First lien senior secured delayed draw term loan4/2026— 8,523 — 
EresearchTechnology, Inc. (dba Clario)First lien senior secured delayed draw term loan1/20271,666 31,659 — 
EresearchTechnology, Inc. (dba Clario)First lien senior secured delayed draw term loan3/2026— 29,326 (147)
Essential Services Holding Corporation (dba Turnpoint)First lien senior secured delayed draw term loan6/2026— 6,970 (35)
Evolution BuyerCo, Inc. (dba SIAA)First lien senior secured delayed draw term loan12/2025— 26,059 — 
Faraday Buyer, LLC (dba MacLean Power Systems)First lien senior secured delayed draw term loan11/2025— 14,307 — 
FR Flow Control CB LLC (dba Trillium Flow Technologies)First lien senior secured delayed draw term loan6/2026— 28,307 — 
Fullsteam Operations, LLCFirst lien senior secured delayed draw term loan8/20252,674 2,326 — 
Fullsteam Operations, LLCFirst lien senior secured delayed draw term loan2/2026840 410 — 
Galls, LLCFirst lien senior secured delayed draw term loan3/202611,970 27,258 — 
Galway Borrower LLCFirst lien senior secured delayed draw term loan7/20262,812 46,920 — 
Gehl Foods, LLCFirst lien senior secured delayed draw term loan12/20256,806 2,274 — 
GI Apple Midco LLC (dba Atlas Technical Consultants)First lien senior secured delayed draw term loan4/20251,720 14,090 — 
GS Acquisitionco, Inc. (dba insightsoftware)First lien senior secured delayed draw term loan3/202672 254 — 
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Home Service TopCo IV, Inc.First lien senior secured delayed draw term loan2/2027— 2,799 — 
Indigo Buyer, Inc. (dba Inovar Packaging Group)First lien senior secured delayed draw term loan7/20261,075 12,359 — 
Indikami Bidco, LLC (dba IntegriChain)First lien senior secured delayed draw term loan12/2025751 5,819 — 
Integrity Marketing Acquisition, LLCFirst lien senior secured delayed draw term loan8/2026— 53,446 — 
Interoperability Bidco, Inc. (dba Lyniate)First lien senior secured delayed draw term loan6/2026— 5,079 (102)
Integrated Specialty Coverages, LLCFirst lien senior secured delayed draw term loan2/2027— 6,577 — 
KENE Acquisition, Inc. (dba Entrust Solutions Group)First lien senior secured delayed draw term loan2/2026775 6,695 — 
KPSKY Acquisition, Inc. (dba BluSky)First lien senior secured delayed draw term loan11/202572 6,054 — 
KWOR Acquisition, Inc. (dba Alacrity Solutions)First lien senior secured delayed draw term loan2/2027— 3,857 (19)
Lakefield Acquisition Corp. (dba Lakefield Veterinary Group)First lien senior secured delayed draw term loan9/20264,213 47,386 — 
Lightbeam Bidco, Inc. (dba Lazer Spot)First lien senior secured delayed draw term loan5/202519,558 27,285 — 
Litera Bidco LLCFirst lien senior secured delayed draw term loan11/20268,763 767 — 
Litera Bidco LLCFirst lien senior secured delayed draw term loan5/2027— 3,981 (10)
ManTech International CorporationFirst lien senior secured delayed draw term loan6/2025— 2,164 — 
Maple Acquisition, LLC (dba Medicus)First lien senior secured delayed draw term loan5/2026— 20,448 — 
Mario Purchaser, LLC (dba Len the Plumber)First lien senior secured delayed draw term loan10/20252,653 24,114 — 
Minotaur Acquisition, Inc. (dba Inspira Financial)First lien senior secured delayed draw term loan5/2026— 41,960 — 
Monotype Imaging Holdings Inc.First lien senior secured delayed draw term loan2/20263,252 10,759 — 
NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A.First lien senior secured EUR delayed draw term loan3/2027— 23,316 (291)
Nelipak Holding CompanyFirst lien senior secured delayed draw term loan3/2027— 11,787 (147)
OneOncology, LLCFirst lien senior secured delayed draw term loan10/202644,679 26,576 — 
OneOncology, LLCFirst lien senior secured delayed draw term loan3/2027— 121,354 (303)
Packaging Coordinators Midco, Inc.First lien senior secured delayed draw term loan4/2026— 236,996 (1,778)
Paris US Holdco, Inc. (dba Precinmac)First lien senior secured delayed draw term loan12/2026— 18,063 (90)
Park Place Technologies, LLCFirst lien senior secured delayed draw term loan9/20256,930 6,543 — 
Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.)First lien senior secured delayed draw term loan8/202513,680 3,429 — 
PDI TA Holdings, Inc.First lien senior secured delayed draw term loan2/2026— 6,584 (66)
PetVet Care Centers, LLCFirst lien senior secured delayed draw term loan11/2025— 31,691 (1,426)
Pye-Barker Fire & Safety, LLCFirst lien senior secured delayed draw term loan5/202664,313 95,287 — 
Raven Acquisition Holdings, LLC (dba R1 RCM)First lien senior secured delayed draw term loan10/2026— 5,667 (45)
RL Datix Holdings (USA), Inc.First lien senior secured delayed draw term loan4/2027— 14,908 — 
Savor Acquisition, Inc. (dba Sauer Brands)First lien senior secured delayed draw term loan3/2027— 7,759 (2)
Salinger Bidco Inc. (dba Surgical Information Systems)First lien senior secured delayed draw term loan8/2026— 5,742 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured EUR delayed draw term loan9/2025449 600 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured delayed draw term loan9/20252,046 2,732 — 
Severin Acquisition, LLC (dba PowerSchool)First lien senior secured delayed draw term loan10/20271,836 25,370 — 
SimonMed, Inc.First lien senior secured delayed draw term loan2/20275,745 40,288 — 
Simplicity Financial Marketing Group Holdings, Inc.First lien senior secured delayed draw term loan12/20266,438 33,800 — 
Smarsh Inc.First lien senior secured delayed draw term loan1/2027— 10,381 — 
Smarsh Inc.First lien senior secured delayed draw term loan1/2027— 9,966 — 
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Soleo Holdings, Inc.First lien senior secured delayed draw term loan2/2027— 15,932 (40)
Sonny's Enterprises, LLCFirst lien senior secured delayed draw term loan6/20263,583 41,416 — 
Southern Air & Heat Holdings, LLCFirst lien senior secured delayed draw term loan7/202510,499 20,889 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured delayed draw term loan10/2026— 7,482 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured delayed draw term loan10/2027— 17,957 — 
STS PARENT, LLC (dba STS Aviation Group)First lien senior secured delayed draw term loan10/2026— 37,550 — 
TBRS, Inc. (dba TEAM Technologies)First lien senior secured delayed draw term loan11/2026— 37,652 — 
THG Acquisition, LLC (dba Hilb)First lien senior secured delayed draw term loan10/2026367 20,349 — 
Thunder Purchaser, Inc. (dba Vector Solutions)First lien senior secured delayed draw term loan10/202620,523 6,858 — 
Troon Golf, L.L.C.First lien senior secured delayed draw term loan9/202627,381 27,449 — 
Tricentis Operations Holdings, Inc.First lien senior secured delayed draw term loan2/2027— 10,055 (50)
Unified Women's Healthcare, LPFirst lien senior secured delayed draw term loan10/202620,249 33,151 — 
USIC Holdings, Inc.First lien senior secured delayed draw term loan9/2026494 1,741 — 
USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners)First lien senior secured delayed draw term loan8/2026258 13,712 — 
Vensure Employer Services, Inc.First lien senior secured delayed draw term loan9/2026452 32,826 — 
Vessco Midco Holdings, LLCFirst lien senior secured delayed draw term loan7/20266,290 17,595 — 
Walker Edison Furniture Company LLCFirst lien senior secured delayed draw term loan3/2027174 244 — 
Zendesk, Inc.First lien senior secured delayed draw term loan11/2025— 35,425 — 
Non-controlled/affiliated - delayed draw debt commitments
Pluralsight, LLCFirst lien senior secured delayed draw term loan8/2029— 496 — 
Non-controlled/non-affiliated - revolving debt commitments
ACR Group Borrower, LLCFirst lien senior secured revolving loan3/202625 850 — 
Activate Holdings (US) Corp. (dba Absolute Software)First lien senior secured revolving loan7/2029— 352 — 
Aerosmith Bidco 1 Limited (dba Audiotonix)First lien senior secured revolving loan7/2030— 44,919 — 
AI Titan Parent, Inc. (dba Prometheus Group)First lien senior secured revolving loan8/2031— 4,245 (42)
AmeriLife Holdings LLCFirst lien senior secured revolving loan8/2028— 33,393 (167)
Anaplan, Inc.First lien senior secured revolving loan6/2028— 16,528 — 
Appfire Technologies, LLCFirst lien senior secured revolving loan3/2028— 1,633 — 
Aptean Acquiror, Inc. (dba Aptean)First lien senior secured revolving loan1/2031— 8,497 — 
Arctic Holdco, LLC (dba Novvia Group)First lien senior secured revolving loan1/20315,681 6,155 — 
Artifact Bidco, Inc. (dba Avetta)First lien senior secured revolving loan7/2030— 2,710 (14)
Ascend Buyer, LLC (dba PPC Flexible Packaging)First lien senior secured revolving loan9/2028— 8,187 — 
Associations, Inc.First lien senior secured revolving loan7/202818,788 6,601 — 
AWP Group Holdings, Inc.First lien senior secured revolving loan12/20301,161 4,644 — 
Azurite Intermediate Holdings, Inc. (dba Alteryx, Inc.)First lien senior secured revolving loan3/2031— 1,995 (15)
Baker Tilly Advisory Group, LPFirst lien senior secured revolving loan6/2030— 20,935 (209)
Bamboo US BidCo LLCFirst lien senior secured revolving loan10/2029— 20,128 — 
Bayshore Intermediate #2, L.P. (dba Boomi)First lien senior secured revolving loan10/2027— 18,336 — 
BCPE Osprey Buyer, Inc. (dba PartsSource)First lien senior secured revolving loan8/20264,293 362 — 
BCPE Pequod Buyer, Inc. (dba Envestnet)First lien senior secured revolving loan11/2029— 16,634 (250)
BCTO BSI Buyer, Inc. (dba Buildertrend)First lien senior secured revolving loan12/2026— 161 — 
Belmont Buyer, Inc. (dba Valenz)First lien senior secured revolving loan6/20292,217 4,433 — 
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Blast Bidco Inc. (dba Bazooka Candy Brands)First lien senior secured revolving loan10/2029— 4,179 — 
Brightway Holdings, LLCFirst lien senior secured revolving loan12/2027590 1,515 — 
BTRS Holdings Inc. (dba Billtrust)First lien senior secured revolving loan12/20282,531 2,531 — 
Cambrex CorporationFirst lien senior secured revolving loan3/2032— 29,133 (291)
Canadian Hospital Specialties LimitedFirst lien senior secured revolving loan4/2027254 158 — 
Catalis Intermediate, Inc. (fka GovBrands Intermediate, Inc.)First lien senior secured revolving loan8/2027303 577 — 
Certinia Inc.First lien senior secured revolving loan8/2030— 4,412 — 
CHA Vision Holdings, Inc. (fka FR Vision Holdings, Inc.)First lien senior secured revolving loan1/2030— 3,692 — 
CivicPlus, LLCFirst lien senior secured revolving loan8/2027— 2,244 — 
CMG HoldCo, LLC (dba Crete United)First lien senior secured revolving loan5/20282,344 6,310 — 
CoreTrust Purchasing Group LLCFirst lien senior secured revolving loan10/2029— 14,183 — 
Coupa Holdings, LLCFirst lien senior secured revolving loan2/2029— 1,664 — 
CPM Holdings, Inc.First lien senior secured revolving loan6/2028— 5,000 (93)
Creek Parent, Inc. (dba Catalent)First lien senior secured revolving loan12/2031— 42,297 (211)
CCM Midco, LLC (f/k/a Cresset Capital Management, LLC)First lien senior secured revolving loan6/2029— 2,239 — 
Crewline Buyer, Inc. (dba New Relic)First lien senior secured revolving loan11/2030— 17,226 (172)
CT Technologies Intermediate Holdings, Inc. (& Smart Holdings Corp.) (dba Datavant)First lien senior secured revolving loan8/2031— 30,115 — 
D4C Dental Brands, Inc.First lien senior secured revolving loan11/2029— 13,102 (131)
DCG ACQUISITION CORP. (dba DuBois Chemical)First lien senior secured revolving loan6/2031— 15,899 (79)
Denali BuyerCo, LLC (dba Summit Companies)First lien senior secured revolving loan9/2027— 9,963 (25)
Diamond Mezzanine 24 LLC (dba United Risk)First lien senior secured revolving loan10/2030— 6,175 — 
Disco Parent, Inc. (dba Duck Creek Technologies, Inc.)First lien senior secured revolving loan3/2029— 91 (1)
Dresser Utility Solutions, LLCFirst lien senior secured revolving loan3/2029— 10,552 (26)
DuraServ LLCFirst lien senior secured revolving loan6/2030— 24,256 (121)
Eagle Family Foods Group LLCFirst lien senior secured revolving loan8/2030— 20,344 — 
EET Buyer, Inc. (dba e-Emphasys)First lien senior secured revolving loan11/2027— 3,387 — 
Einstein Parent, Inc. (dba Smartsheet)First lien senior secured revolving loan1/2031— 7,949 (79)
Entrata, Inc.First lien senior secured revolving loan7/2028— 513 — 
Essential Services Holding Corporation (dba Turnpoint)First lien senior secured revolving loan6/2030697 3,660 — 
EresearchTechnology, Inc. (dba Clario)First lien senior secured revolving loan10/2031— 16,663 (167)
Evolution BuyerCo, Inc. (dba SIAA)First lien senior secured revolving loan4/2030— 12,968 — 
Fiesta Purchaser, Inc. (dba Shearer's Foods)First lien senior secured revolving loan2/2029— 16,615 (42)
Finastra USA, Inc.First lien senior secured revolving loan9/20294,298 12,794 — 
Forescout Technologies, Inc.First lien senior secured revolving loan5/2030— 1,320 (7)
Formerra, LLCFirst lien senior secured revolving loan11/2028— 526 (8)
Fortis Solutions Group, LLCFirst lien senior secured revolving loan10/20273,036 3,711 — 
Foundation Consumer Brands, LLCFirst lien senior secured revolving loan2/2029— 3,411 (34)
FR Flow Control CB LLC (dba Trillium Flow Technologies)First lien senior secured revolving loan12/2029— 23,160 (174)
Fullsteam Operations, LLCFirst lien senior secured revolving loan11/2029— 500 — 
Galls, LLCFirst lien senior secured revolving loan3/20303,139 12,558 — 
Galway Borrower LLCFirst lien senior secured revolving loan9/20282,049 4,217 — 
Gaylord Chemical Company, L.L.C.First lien senior secured revolving loan12/20272,066 1,907 — 
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Gerson Lehrman Group, Inc.First lien senior secured revolving loan12/2027— 8,404 — 
GI Apple Midco LLC (dba Atlas Technical Consultants)First lien senior secured revolving loan4/20296,333 4,749 — 
GI Ranger Intermediate, LLC (dba Rectangle Health)First lien senior secured revolving loan10/2027— 1,673 (33)
Granicus, Inc.First lien senior secured revolving loan1/2031— 4,633 — 
GS Acquisitionco, Inc. (dba insightsoftware)First lien senior secured revolving loan5/2028— 247 (2)
Hercules Borrower, LLC (dba The Vincit Group)First lien senior secured revolving loan12/2026— 96 — 
Hissho Parent, LLCFirst lien senior secured revolving loan5/2029— 11,009 — 
Home Service TopCo IV, Inc.First lien senior secured revolving loan12/2027— 3,359 — 
Hyland Software, Inc.First lien senior secured revolving loan9/2029— 6,978 — 
Icefall Parent, Inc. (dba EngageSmart)First lien senior secured revolving loan1/2030— 2,749 — 
Ideal Image Development, LLCFirst lien senior secured revolving loan2/2029732 183 — 
Ideal Image Development, LLCFirst lien senior secured revolving loan2/2029953 145 — 
Ideal Image Development, LLC*First lien senior secured revolving loan2/202980 — — 
Ideal Tridon Holdings, Inc.First lien senior secured revolving loan4/2028— 8,630 — 
IG Investments Holdings, LLC (dba Insight Global)First lien senior secured revolving loan9/2028— 4,866 — 
Indigo Buyer, Inc. (dba Inovar Packaging Group)First lien senior secured revolving loan5/2028— 12,700 — 
Indikami Bidco, LLC (dba IntegriChain)First lien senior secured revolving loan6/20302,628 2,065 — 
Integrated Specialty Coverages, LLCFirst lien senior secured revolving loan7/2029— 5,934 — 
Integrity Marketing Acquisition, LLCFirst lien senior secured revolving loan8/2028— 17,886 — 
Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.)*First lien senior secured revolving loan8/20262,049 — — 
Interoperability Bidco, Inc. (dba Lyniate)First lien senior secured revolving loan3/20281,324 4,694 — 
IRI Group Holdings, Inc. (f/k/a Circana Group, L.P. (f/k/a The NPD Group, L.P.))First lien senior secured revolving loan12/20271,598 12,669 — 
JS Parent, Inc. (dba Jama Software)First lien senior secured revolving loan4/2031— 88 — 
KABAFUSION Parent, LLCFirst lien senior secured revolving loan11/2031— 8,903 (22)
KENE Acquisition, Inc. (dba Entrust Solutions Group)First lien senior secured revolving loan2/2031— 2,242 (28)
KRIV Acquisition Inc. (dba Riveron)First lien senior secured revolving loan7/2029— 10,944 — 
KWOL Acquisition, Inc. (dba Worldwide Clinical Trials)First lien senior secured revolving loan12/2029— 23,755 — 
KWOR Acquisition, Inc. (dba Alacrity Solutions)First lien senior secured revolving loan2/2030— 2,877 (14)
Lakefield Acquisition Corp. (dba Lakefield Veterinary Group)First lien senior secured revolving loan9/2029— 8,600 (43)
Lightbeam Bidco, Inc. (dba Lazer Spot)First lien senior secured revolving loan5/20293,116 8,569 — 
Lignetics Investment Corp.First lien senior secured revolving loan10/20267,647 3,824 — 
Litera Bidco LLCFirst lien senior secured revolving loan5/2028— 2,266 (6)
Magnet Forensics, LLC (f/k/a Grayshift, LLC)First lien senior secured revolving loan7/2028— 2,419 — 
ManTech International CorporationFirst lien senior secured revolving loan9/2028— 1,806 — 
Maple Acquisition, LLC (dba Medicus)First lien senior secured revolving loan5/2030— 15,336 — 
Mario Purchaser, LLC (dba Len the Plumber)First lien senior secured revolving loan4/20282,947 5,091 — 
MHE Intermediate Holdings, LLC (dba OnPoint Group)First lien senior secured revolving loan7/20271,429 2,143 — 
Milan Laser Holdings LLCFirst lien senior secured revolving loan4/2026— 2,553 (13)
Ministry Brands Holdings, LLCFirst lien senior secured revolving loan12/2027— 4,746 (36)
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Minotaur Acquisition, Inc. (dba Inspira Financial)First lien senior secured revolving loan6/2030— 25,814 — 
Mitnick Corporate Purchaser, Inc.First lien senior secured revolving loan5/20271,125 8,250 — 
Monotype Imaging Holdings Inc.First lien senior secured revolving loan2/2030— 21,041 — 
Natural Partners, LLCFirst lien senior secured revolving loan11/2027— 11,814 — 
NELIPAK EUROPEAN HOLDINGS COÖPERATIEF U.A.First lien senior secured EUR revolving loan3/2031760 3,590 — 
Nelipak Holding CompanyFirst lien senior secured revolving loan3/20314,398 4,398 — 
Neptune Holdings, Inc. (dba NexTech)First lien senior secured revolving loan8/2029— 4,118 — 
NMI Acquisitionco, Inc. (dba Network Merchants)First lien senior secured revolving loan9/2028— 558 — 
Notorious Topco, LLC (dba Beauty Industry Group)First lien senior secured revolving loan5/20271,408 3,873 — 
OAC Holdings I Corp. (dba Omega Holdings)First lien senior secured revolving loan3/2028919 1,654 — 
OB Hospitalist Group, Inc.First lien senior secured revolving loan9/2027— 7,993 — 
Ole Smoky Distillery, LLCFirst lien senior secured revolving loan3/2028— 3,302 (25)
OneOncology, LLCFirst lien senior secured revolving loan6/2029— 41,243 (206)
Oranje Holdco, Inc. (dba KnowBe4)First lien senior secured revolving loan2/2029— 10,148 — 
Packaging Coordinators Midco, Inc.First lien senior secured revolving loan1/2032— 44,948 (618)
Paris US Holdco, Inc. (dba Precinmac)First lien senior secured revolving loan12/203190 8,941 — 
Park Place Technologies, LLCFirst lien senior secured revolving loan3/20302,361 7,757 — 
Patriot Acquisition TopCo S.A.R.L (dba Corza Health, Inc.)First lien senior secured revolving loan1/202847 41 — 
PDI TA Holdings, Inc.First lien senior secured revolving loan2/2031875 5,685 — 
Peter C. Foy & Associates Insurance Services, LLC (dba PCF Insurance Services)First lien senior secured revolving loan11/2027— 2,570 — 
PetVet Care Centers, LLCFirst lien senior secured revolving loan11/2029— 33,258 (1,829)
Phantom Purchaser, Inc.First lien senior secured revolving loan9/2031— 11,437 (29)
Ping Identity Holding Corp.First lien senior secured revolving loan10/2028— 6,597 — 
Plasma Buyer LLC (dba PathGroup)First lien senior secured revolving loan5/202810,116 2,066 — 
PPV Intermediate Holdings, LLCFirst lien senior secured revolving loan8/2029— 11,854 — 
Premise Health Holding Corp.First lien senior secured revolving loan2/2030— 8,191 (20)
Pye-Barker Fire & Safety, LLCFirst lien senior secured revolving loan5/20304,213 29,489 — 
Puma Buyer, LLC (dba PANTHERx)First lien senior secured revolving loan3/2032— 21,023 (158)
QAD, Inc.First lien senior secured revolving loan11/2027— 6,000 (15)
Quva Pharma, Inc.*First lien senior secured revolving loan4/2026455 — — 
Relativity ODA LLCFirst lien senior secured revolving loan5/2029— 2,797 (7)
Rhea Parent, Inc.First lien senior secured revolving loan12/2030— 21,596 (54)
RL Datix Holdings (USA), Inc.First lien senior secured revolving loan10/2030— 13,052 (98)
SailPoint Technologies Holdings, Inc.First lien senior secured revolving loan8/2028— 5,718 — 
Salinger Bidco Inc. (dba Surgical Information Systems)First lien senior secured revolving loan5/2031— 5,742 — 
Soleo Holdings, Inc.First lien senior secured revolving loan2/2032— 15,932 (80)
Securonix, Inc.First lien senior secured revolving loan4/2028120 5,219 — 
Sensor Technology Topco, Inc. (dba Humanetics)First lien senior secured revolving loan5/202810,114 10,448 — 
Severin Acquisition, LLC (dba PowerSchool)First lien senior secured revolving loan10/20312,449 13,877 — 
SimonMed, Inc.First lien senior secured revolving loan2/2031— 30,689 (153)
Simplicity Financial Marketing Group Holdings, Inc.First lien senior secured revolving loan12/2031— 20,119 (201)
Smarsh Inc.First lien senior secured revolving loan2/20291,439 9,357 — 
Portfolio CompanyCommitment TypeCommitment Expiration DateFunded CommitmentUnfunded
Commitment
Fair Value(33)
Soliant Lower Intermediate, LLC (dba Soliant)First lien senior secured revolving loan6/2031— 15,556 (330)
Sonny's Enterprises, LLCFirst lien senior secured revolving loan8/202715,023 10,879 — 
Southern Air & Heat Holdings, LLCFirst lien senior secured revolving loan10/202762 220 — 
Spaceship Purchaser, Inc. (dba Squarespace)First lien senior secured revolving loan10/2031— 14,965 — 
Spotless Brands, LLCFirst lien senior secured revolving loan7/2028— 2,244 — 
STS PARENT, LLC (dba STS Aviation Group)First lien senior secured revolving loan10/20308,824 6,196 — 
SWK BUYER, Inc. (dba Stonewall Kitchen)First lien senior secured revolving loan3/2029— 5,579 (98)
Tamarack Intermediate, L.L.C. (dba Verisk 3E)First lien senior secured revolving loan3/2028— 5,336 (27)
TBRS, Inc. (dba TEAM Technologies)First lien senior secured revolving loan11/20301,255 19,662 — 
TC Holdings, LLC (dba TrialCard)First lien senior secured revolving loan4/2027— 16,473 — 
Tempo Buyer Corp. (dba Global Claims Services)First lien senior secured revolving loan8/2027— 5,159 — 
The Shade Store, LLCFirst lien senior secured revolving loan10/20282,463 8,339 — 
THG Acquisition, LLC (dba Hilb)First lien senior secured revolving loan10/2031474 9,884 — 
Thunder Purchaser, Inc. (dba Vector Solutions)First lien senior secured revolving loan6/2027— 1,021 — 
Tricentis Operations Holdings, Inc.First lien senior secured revolving loan2/2032— 6,284 (63)
Troon Golf, L.L.C.First lien senior secured revolving loan8/2028— 27,449 — 
Truist Insurance Holdings, LLCFirst lien senior secured revolving loan5/2029896 6,123 — 
Unified Women's Healthcare, LPFirst lien senior secured revolving loan6/2029— 8,120 — 
USIC Holdings, Inc.First lien senior secured revolving loan9/20312,621 2,207 — 
USRP Holdings, Inc. (dba U.S. Retirement and Benefits Partners)First lien senior secured revolving loan12/2029— 4,975 — 
Velocity HoldCo III Inc. (dba VelocityEHS)First lien senior secured revolving loan4/2027— 142 — 
Vessco Midco Holdings, LLCFirst lien senior secured revolving loan7/2031— 7,962 (40)
Vital Bidco AB (dba Vitamin Well)First lien senior secured revolving loan10/203012,908 40,004 — 
Walker Edison Furniture Company LLC*First lien senior secured revolving loan3/20271,333 — — 
When I Work, Inc.First lien senior secured revolving loan11/2027— 4,164 (146)
Zendesk, Inc.First lien senior secured revolving loan11/2028— 14,587 — 
Non-controlled/affiliated - revolving debt commitments
Pluralsight, LLCFirst lien senior secured revolving loan8/2029— 198 — 
Non-controlled/non-affiliated - equity commitments
Chrome Investors LPLP InterestN/A7,339 1,835 — 
Controlled/affiliated - equity commitments
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLCLLC InterestN/A26,517 56,604 — 
AAM Series 2.1 Aviation Feeder, LLCLLC InterestN/A24,663 16,166 — 
LSI Financing LLCCommon EquityN/A216,313 4,500 — 
Total Portfolio Company Commitments$827,401 $3,986,585 $(12,008)
[37] Security acquired in transaction exempt from registration under the Securities Act of 1933, and may be deemed to be “restricted security” under the Securities Act. As of March 31, 2025, the aggregate fair value of these securities is $1.54 billion, or 9.5% of the Company’s net assets. The acquisition dates of the restricted securities are as follows:
Portfolio CompanyInvestmentAcquisition Date
AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC**LLC InterestJuly 1, 2022
AAM Series 2.1 Aviation Feeder, LLC**LLC InterestJuly 1, 2022
Accelerate Topco Holdings, LLCCommon UnitsSeptember 1, 2022
Amergin Asset Management, LLCClass A UnitsJuly 1, 2022
ASP Conair Holdings LPClass A UnitsMay 17, 2021
AlphaSense, LLCSeries E Preferred SharesJune 27, 2024
BCTO WIW Holdings, Inc. (dba When I Work)Class A Common StockNovember 2, 2021
BEHP Co-Investor II, L.P.LP InterestMay 6, 2022
Blue Owl Credit SLF LLC*LLC InterestMay 6, 2024
Brooklyn Lender Co-Invest 2, L.P. (dba Boomi)Common UnitsOctober 1, 2021
CD&R Value Building Partners I, L.P. (dba Belron)LP InterestDecember 2, 2021
Chrome Investors LPLP InterestJanuary 25, 2025
Denali Holding, LP (dba Summit Companies)Class A UnitsSeptember 14, 2021
Dodge Construction Network Holdings, L.P.Class A-2 Common UnitsMarch 16, 2022
Dodge Construction Network Holdings, L.P.Series A Preferred UnitsMarch 16, 2022
Elliott Alto Co-Investor Aggregator L.P.LP InterestSeptember 28, 2022
Evolution Parent, LP (dba SIAA)LP InterestApril 30, 2021
Fifth Season Investments LLC**Class A UnitsOctober 17, 2022
Gloves Holdings, LP (dba Protective Industrial Products)LP InterestDecember 28, 2020
GrowthCurve Capital Sunrise Co-Invest LP (dba Brightway)LP InterestDecember 16, 2021
Hercules Buyer, LLC (dba The Vincit Group)Common UnitsDecember 15, 2020
Hissho Sushi Holdings, LLCClass A UnitsMay 17, 2022
Hockey Parent Holdings, L.P.Class A Common UnitsSeptember 14, 2023
Ideal Topco, L.P.Class A-1 Preferred UnitsFebruary 20, 2024
Ideal Topco, L.P.Class A-2 Common UnitsFebruary 20, 2024
Insight CP (Blocker) Holdings, L.P. (dba CivicPlus, LLC)LP InterestJune 8, 2022
Knockout Intermediate Holdings I Inc. (dba Kaseya Inc.)Perpetual Preferred StockJune 22, 2022
KWOR Intermediate I, Inc. (dba Alacrity Solutions)Preferred StockFebruary 28, 2025
KWOR Intermediate I, Inc. (dba Alacrity Solutions)Class A-1 Common StockFebruary 28, 2025
KOBHG Holdings, L.P. (dba OB Hospitalist)Class A InterestsSeptember 27, 2021
KPCI Holdings, L.P.Class A UnitsNovember 25, 2020
KWOL Acquisition, Inc. (dba Worldwide Clinical Trials)Class A InterestDecember 12, 2023
Lakefield Acquisition Corp. (dba Lakefield Veterinary Group)Common EquityJanuary 8, 2025
LSI Financing 1 DAC**Preferred equityDecember 14, 2022
LSI Financing LLC**Common EquityNovember 25, 2024
Maia Aggregator, LPClass A-2 UnitsFebruary 1, 2022
Bird Holding B.V. (fka MessageBird Holding B.V.)Extended Series C WarrantsMay 5, 2021
Metis HoldCo, Inc. (dba Mavis Tire Express Services)Series A Convertible Preferred StockMay 3, 2021
Minerva Holdco, Inc.Senior A Preferred StockFebruary 14, 2022
Orange Blossom Parent, Inc.Common UnitsJuly 29, 2022
OCIC SLF LLC (fka Blue Owl Credit Income Senior Loan Fund LLC)*LLC InterestNovember 2, 2022
Patriot Holdings SCSp (dba Corza Health, Inc.)Class A UnitsJanuary 29, 2021
Portfolio CompanyInvestmentAcquisition Date
Patriot Holdings SCSp (dba Corza Health, Inc.)Class B UnitsJanuary 29, 2021
PCF Holdco, LLC (dba PCF Insurance Services)Preferred equityFebruary 16, 2023
PCF Holdco, LLC (dba PCF Insurance Services)Class A UnitsNovember 1, 2021
PCF Holdco, LLC (dba PCF Insurance Services)WarrantsFebruary 16, 2023
Paradigmatic Holdco LLC (dba Pluralsight)Common stockAugust 22, 2024
Project Alpine Co-Invest Fund, LPLP InterestJune 13, 2022
Project Hotel California Co-Invest Fund, L.P.LP InterestAugust 9, 2022
Rhea Acquisition Holdings, LPSeries A-2 UnitsFebruary 18, 2022
Romulus Intermediate Holdings 1 Inc. (dba PetVet Care Centers)Series A Preferred StockNovember 15, 2023
Sunshine Software Holdings, Inc. (dba Cornerstone OnDemand, Inc.)Series A Preferred StockOctober 14, 2021
TCB Holdings I LLC (dba TricorBraun)Class A Preferred UnitsJanuary 31, 2025
Thunder Topco L.P. (dba Vector Solutions)Common UnitsJune 30, 2021
Vestwell Holdings, Inc.Series D Preferred StockDecember 20, 2023
Walker Edison Holdco LLCCommon UnitsMarch 1, 2023
WMC Bidco, Inc. (dba West Monroe)Senior Preferred StockNovember 9, 2021
WP Irving Co-Invest, L.P.Partnership UnitsMay 18, 2022
XOMA CorporationWarrantsDecember 15, 2023
Zoro TopCo, L.P.Class A Common UnitsNovember 22, 2022
Zoro TopCo, Inc.Series A Preferred EquityNovember 22, 2022
*Refer to Note 4 “Investments - OCIC SLF LLC”, for further information.
** Refer to Note 3 “Agreements and Related Party Transactions - Controlled/Affiliated Portfolio Companies”.
[38] The interest rate on these investments is subject to 3 month SOFR, which as of March 31, 2025 was 4.29%.
[39] The interest rate on these investments is subject to 3 month SOFR, which as of December 31, 2024 was 4.31%.
[40] The interest rate on these investments is subject to 1 month SOFR, which as of March 31, 2025 was 4.32%.
[41] Level 2 Investment.
[42] This portfolio company was not a co-investment made with the Company’s affiliates in accordance with the terms of exemptive relief that the Company received from the U.S. Securities and Exchange Commission.
[43] The interest rate on these investments is subject to 1 month SOFR, which as of December 31, 2024 was 4.33%.
[44] Level 2 Investment.
[45] The interest rate on these investments is subject to 6 month SOFR, which as of March 31, 2025 was 4.19%.
[46] The interest rate on these investments is subject to SONIA, which as of December 31, 2024 was 4.70%.
[47] The interest rate on these investments is subject to SONIA, which as of March 31, 2025 was 4.46%.
[48] The interest rate on these investments is subject to 3 month EURIBOR, which as of March 31, 2025 was 2.34%.
[49] The interest rate on these investments is subject to 3 month EURIBOR, which as of December 31, 2024 was 2.71%.
[50] This portfolio company was not a co-investment made with the Company’s affiliates in accordance with the terms of exemptive relief that the Company received from the U.S. Securities and Exchange Commission.
[51] The interest rate on these investments is subject to 6 month SOFR, which as of December 31, 2024 was 4.25%.
[52] Investment measured at net asset value (“NAV”).
[53] Investment measured at net asset value (“NAV”).
[54] The interest rate on these investments is subject to 3 month CORRA, which as of March 31, 2025 was 2.66%.
[55] The interest rate on these investments is subject to 3 month CORRA, which as of December 31, 2024 was 3.15%.
[56] The interest rate on these investments is subject to 6 month EURIBOR, which as of March 31, 2025 was 2.34%.
[57] The interest rate on these investments is subject to 6 month EURIBOR, which as of December 31, 2024 was 2.57%.
[58] The interest rate on these investments is subject to Prime, which as of December 31, 2024 was 7.50%.
[59] Investment was on non-accrual status as of March 31, 2025.
[60] Investment is not pledged as collateral under the Company’s Amended and Restated Senior Secured Revolving Credit Agreement (the “Revolving Credit Facility”, credit facilities to which certain of our subsidiaries are parties (the “SPV Asset Facilities”) and collateral loan obligation transactions (“CLOs”).
[61] Investment is not pledged as collateral under the Company’s Amended and Restated Senior Secured Revolving Credit Agreement (the “Revolving Credit Facility”, credit facilities to which certain of our subsidiaries are parties (the “SPV Asset Facilities”) and collateral loan obligation transactions (“CLOs”).
[62] We invest in this portfolio company through underlying blocker entities Hercules Blocker 1 LLC, Hercules Blocker 2 LLC, Hercules Blocker 3 LLC, Hercules Blocker 4 LLC, and Hercules Blocker 5 LLC.
[63] We invest in this portfolio company through underlying blocker entities Hercules Blocker 1 LLC, Hercules Blocker 2 LLC, Hercules Blocker 3 LLC, Hercules Blocker 4 LLC, and Hercules Blocker 5 LLC.
[64] The interest rate on these investments is subject to 12 month SOFR, which as of December 31, 2024 was 4.18%.
[65]
(32)Investment was on non-accrual status as of December 31, 2024.
[66] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of this portfolio company as the Company owns more than 5% but less than 25% of the portfolio company’s voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled affiliates for the period ended December 31, 2024 were as follows:
CompanyFair value as of December 31, 2023
Gross Additions(a)
Gross Reductions(b)
Net Change in Unrealized Gain/(Loss)Realized Gain/(Loss)Fair value as of December 31, 2024Dividend IncomeInterest and PIK IncomeOther Income
LSI Financing 1 DAC$78,406 $22,288 $(100,694)$(6,093)$10,864 $4,771 $486 $74 $— 
Pluralsight, LLC— 3,477 — — — 3,477 — 96 — 
Total$78,406 $25,765 $(100,694)$(6,093)$10,864 $8,248 $486 $170 $— 
[67] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of this portfolio company as the Company owns more than 5% but less than 25% of the portfolio company’s voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled affiliates for the period ended March 31, 2025 were as follows:
CompanyFair value as of December 31, 2024
Gross Additions(a)
Gross Reductions(b)
Net Change in Unrealized Gain/(Loss)Realized Gain/(Loss)Fair value as of March 31, 2025Dividend IncomeInterest and PIK IncomeOther Income
LSI Financing 1 DAC$4,771 $1 $— $(82)$— $4,690 $— $— $— 
Pluralsight, LLC3,477 43 — — — 3,520 — 64 — 
Total$8,248 $44 $— $(82)$— $8,210 $— $64 $— 
        
________
(a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to payment-in-kind (“PIK”) interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement at fair value of an existing portfolio company into this controlled affiliated category from a different category.
(b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, return of capital, the amortization of premiums and the exchange of one or more existing securities for one or more new securities.
[68] The interest rate on these investments is subject to 1 month EURIBOR, which as of March 31, 2025 was 2.36%.
[69] The interest rate on these investments is subject to 1 month EURIBOR, which as of December 31, 2024 was 2.85%.
[70] The interest rate on these investments is subject to Prime, which as of March 31, 2025 was 7.50%.
[71] The interest rate on these investments is subject to 3 month BBSY, which as of March 31, 2025 was 4.13%.
[72] The interest rate on these investments is subject to 3 month BBSY, which as of December 31, 2024 was 4.42%.