Quarterly report pursuant to Section 13 or 15(d)

Consolidated Schedule of Investments

v3.22.2.2
Consolidated Schedule of Investments - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Investments [Line Items]      
Amortized Cost $ 12,931,859,000 [1],[2],[3],[4],[5] $ 12,648,553,000 [6],[7],[8],[9],[10]  
Fair Value $ 12,835,918,000 [2],[4],[5] $ 12,741,640,000 [7],[9],[10]  
Percentage of Net Assets 219.00% [2],[4],[5] 215.20% [7],[9],[10]  
Notional Amount $ 900,000,000 $ 900,000  
Interest Rate Swap | Designated as Hedging Instrument | Unsecured debt investments | 2024 Notes      
Schedule of Investments [Line Items]      
Fixed interest rate 5.25% 5.25%  
Notional Amount $ 400,000,000 $ 400,000  
Interest Rate Swap | Designated as Hedging Instrument | Unsecured debt investments | 2024 Notes | LIBOR      
Schedule of Investments [Line Items]      
Basis spread on variable rate   2.937%  
Interest Rate Swap | Designated as Hedging Instrument | Unsecured debt investments | 2027 Notes      
Schedule of Investments [Line Items]      
Fixed interest rate 2.63% 2.63%  
Notional Amount $ 500,000,000 $ 500,000  
Interest Rate Swap | Designated as Hedging Instrument | Unsecured debt investments | 2027 Notes | LIBOR      
Schedule of Investments [Line Items]      
Basis spread on variable rate   1.655%  
Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost 12,091,418,000 $ 12,073,126,000 [6],[8]  
Fair Value $ 11,922,492,000 $ 12,124,860,000  
Percentage of Net Assets 203.40% 204.80%  
Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 833,409,000 $ 575,427,000 [6],[8]  
Fair Value $ 906,394,000 $ 616,780,000 $ 272,381,000
Percentage of Net Assets 15.50% 10.40%  
Non-controlled, affiliated investments      
Schedule of Investments [Line Items]      
Units (in shares) 7,350    
Amortized Cost $ 7,032,000 $ 0  
Fair Value $ 7,032,000 0  
Percentage of Net Assets 0.10%    
Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 11,615,947,000 11,793,168,000  
Amortized Cost 11,494,991,000 [1],[3] 11,589,379,000 [6],[8]  
Fair Value $ 11,267,660,000 $ 11,582,457,000  
Percentage of Net Assets 192.40% 195.70%  
Debt Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Par / Units $ 81,384,000 $ 76,503,000  
Amortized Cost 80,489,000 75,368,000 [6],[8]  
Fair Value $ 80,395,000 $ 75,249,000  
Percentage of Net Assets 1.40% 1.20%  
Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 596,427,000 $ 483,747,000 [6],[8]  
Fair Value $ 654,832,000 $ 542,403,000  
Percentage of Net Assets 11.00% 9.10%  
Equity Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 752,920,000 $ 500,059,000 [6],[8]  
Fair Value $ 825,999,000 $ 541,531,000  
Percentage of Net Assets 14.10% 9.20%  
Equity Securities | Non-controlled, affiliated investments      
Schedule of Investments [Line Items]      
Units (in shares) 7,350    
Amortized Cost $ 7,032,000    
Fair Value $ 7,032,000    
Percentage of Net Assets 0.10%    
Advertising and media | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 30,990,000 $ 7,500,000  
Amortized Cost 30,343,000 7,343,000  
Fair Value $ 30,429,000 $ 7,337,000  
Percentage of Net Assets 0.50% 0.10%  
Advertising and media | Debt Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Par / Units $ 64,502,000 $ 60,943,000  
Amortized Cost 63,982,000 60,218,000  
Fair Value $ 64,149,000 $ 60,054,000  
Percentage of Net Assets 1.10% 1.00%  
Advertising and media | Equity Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 48,008,000 $ 48,007,000  
Fair Value $ 94,713,000 $ 48,007,000  
Percentage of Net Assets 1.60% 0.80%  
Aerospace and defense | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 395,815,000 $ 393,950,000  
Amortized Cost 392,418,000 389,725,000  
Fair Value $ 358,415,000 $ 369,381,000  
Percentage of Net Assets 6.00% 6.30%  
Aerospace and defense | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 3,003,000 $ 2,003,000  
Fair Value $ 3,917,000 $ 2,334,000  
Percentage of Net Assets 0.10% 0.00%  
Automotive | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 193,778,000 $ 184,959,000  
Fair Value $ 188,166,000 $ 188,888,000  
Percentage of Net Assets 3.30% 3.20%  
Buildings and real estate | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 421,351,000 $ 693,229,000  
Amortized Cost 417,167,000 685,739,000  
Fair Value $ 418,773,000 $ 681,694,000  
Percentage of Net Assets 7.10% 11.50%  
Buildings and real estate | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 55,562,000 $ 3,272,000  
Fair Value $ 55,920,000 $ 3,612,000  
Percentage of Net Assets 0.90% 0.10%  
Business services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 409,979,000 $ 473,804,000  
Amortized Cost 368,464,000 431,357,000  
Fair Value $ 353,537,000 $ 420,029,000  
Percentage of Net Assets 6.00% 7.10%  
Business services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 19,282,000 $ 5,328,000  
Fair Value $ 20,150,000 $ 5,328,000  
Percentage of Net Assets 0.30% 0.10%  
Chemicals | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 295,165,000 $ 296,186,000  
Amortized Cost 293,314,000 293,856,000  
Fair Value $ 293,578,000 $ 293,733,000  
Percentage of Net Assets 5.10% 5.10%  
Consumer products | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 526,610,000 $ 502,453,000  
Amortized Cost 522,070,000 497,217,000  
Fair Value $ 504,157,000 $ 501,952,000  
Percentage of Net Assets 8.70% 8.50%  
Consumer products | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 6,071,000 $ 6,071,000  
Fair Value $ 5,480,000 $ 6,071,000  
Percentage of Net Assets 0.10% 0.10%  
Containers and packaging | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 170,769,000 $ 168,972,000  
Amortized Cost 168,274,000 166,293,000  
Fair Value $ 168,407,000 $ 168,821,000  
Percentage of Net Assets 2.90% 2.90%  
Distribution | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 520,618,000 $ 545,379,000  
Amortized Cost 515,017,000 538,861,000  
Fair Value $ 519,493,000 $ 543,891,000  
Percentage of Net Assets 8.90% 9.20%  
Distribution | Debt Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Par / Units $ 16,882,000 $ 15,560,000  
Amortized Cost 16,507,000 15,150,000  
Fair Value $ 16,246,000 $ 15,195,000  
Percentage of Net Assets 0.30% 0.20%  
Distribution | Equity Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 4,300,000 $ 4,300,000  
Fair Value $ 3,950,000 $ 4,300,000  
Percentage of Net Assets 0.10% 0.10%  
Education | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 126,417,000 $ 126,417,000  
Amortized Cost 125,103,000 125,134,000  
Fair Value $ 125,281,000 $ 124,686,000  
Percentage of Net Assets 2.20% 2.10%  
Financial services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 857,397,000 $ 827,931,000  
Amortized Cost 892,971,000 823,927,000  
Fair Value $ 845,896,000 $ 823,225,000  
Percentage of Net Assets 14.40% 13.80%  
Financial services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 1,975,000 $ 1,975,000  
Fair Value $ 182,000 $ 895,000  
Percentage of Net Assets 0.00% 0.00%  
Financial services | Equity Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 355,523,000 $ 198,038,000  
Fair Value $ 413,426,000 $ 242,163,000  
Percentage of Net Assets 7.00% 4.10%  
Food and beverage | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 913,878,000 $ 804,929,000  
Amortized Cost 903,181,000 794,400,000  
Fair Value $ 857,721,000 $ 792,640,000  
Percentage of Net Assets 14.40% 13.50%  
Food and beverage | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 10,950,000 $ 10,875,000  
Fair Value $ 11,393,000 $ 13,633,000  
Percentage of Net Assets 0.20% 0.20%  
Healthcare equipment and services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 464,321,000 $ 495,974,000  
Amortized Cost 465,521,000 486,636,000  
Fair Value $ 450,134,000 $ 487,822,000  
Percentage of Net Assets 7.60% 8.20%  
Healthcare equipment and services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 40,692,000 $ 39,936,000  
Fair Value $ 41,450,000 $ 46,073,000  
Percentage of Net Assets 0.60% 0.70%  
Healthcare providers and services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 582,229,000 $ 875,424,000  
Amortized Cost 573,925,000 863,332,000  
Fair Value $ 569,843,000 $ 866,363,000  
Percentage of Net Assets 9.70% 14.80%  
Healthcare providers and services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 6,670,000 $ 32,236,000  
Fair Value $ 6,445,000 $ 32,176,000  
Percentage of Net Assets 0.10% 0.50%  
Healthcare technology | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 607,980,000 $ 601,160,000  
Amortized Cost 598,226,000 590,285,000  
Fair Value $ 594,610,000 $ 592,111,000  
Percentage of Net Assets 10.10% 10.00%  
Healthcare technology | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 9,864,000    
Fair Value $ 9,196,000    
Percentage of Net Assets 0.10%    
Household products | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 310,120,000 $ 228,876,000  
Amortized Cost 303,355,000 227,146,000  
Fair Value $ 278,451,000 $ 223,510,000  
Percentage of Net Assets 4.80% 3.70%  
Household products | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 2,160,000    
Fair Value $ 2,160,000    
Percentage of Net Assets 0.00%    
Human resource support services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 166,349,000 $ 168,718,000  
Amortized Cost 163,808,000 165,954,000  
Fair Value $ 160,472,000 $ 166,021,000  
Percentage of Net Assets 2.70% 2.70%  
Human resource support services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 40,528,000 $ 38,401,000  
Fair Value $ 37,376,000 $ 38,380,000  
Percentage of Net Assets 0.60% 0.60%  
Infrastructure and environmental services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 195,681,000 $ 200,967,000  
Amortized Cost 195,867,000 200,958,000  
Fair Value $ 178,161,000 $ 185,720,000  
Percentage of Net Assets 3.10% 3.10%  
Insurance | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 1,064,333,000 $ 1,088,952,000  
Amortized Cost 1,053,938,000 1,053,334,000  
Fair Value $ 1,041,401,000 $ 1,071,714,000  
Percentage of Net Assets 18.00% 18.10%  
Insurance | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 47,632,000 $ 47,613,000  
Fair Value $ 71,191,000 $ 46,253,000  
Percentage of Net Assets 1.20% 0.90%  
Insurance | Equity Securities | Non-controlled, affiliated investments      
Schedule of Investments [Line Items]      
Units (in shares) 7,350    
Amortized Cost $ 7,032,000    
Fair Value $ 7,032,000    
Percentage of Net Assets 0.10%    
Internet software and services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 1,552,888,000 $ 1,419,759,000  
Amortized Cost 1,533,678,000 1,400,666,000  
Fair Value $ 1,534,405,000 $ 1,408,337,000  
Percentage of Net Assets 26.10% 23.70%  
Internet software and services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 94,691,000 $ 34,637,000  
Fair Value $ 91,389,000 $ 35,326,000  
Percentage of Net Assets 1.60% 0.60%  
Investment funds and vehicles | Equity Securities | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Amortized Cost $ 345,089,000 $ 249,714,000  
Fair Value $ 313,910,000 $ 247,061,000  
Percentage of Net Assets 5.40% 4.20%  
Leisure and entertainment | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 280,946,000 $ 283,073,000  
Amortized Cost 279,685,000 281,637,000  
Fair Value $ 280,946,000 $ 281,551,000  
Percentage of Net Assets 4.80% 4.70%  
Manufacturing | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 636,276,000 $ 619,534,000  
Amortized Cost 624,701,000 606,505,000  
Fair Value $ 630,007,000 $ 614,897,000  
Percentage of Net Assets 10.80% 10.30%  
Manufacturing | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost $ 63,569,000 $ 60,194,000  
Fair Value $ 110,417,000 $ 107,201,000  
Percentage of Net Assets 1.90% 1.80%  
Oil and gas | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 109,222,000 $ 114,375,000  
Amortized Cost 108,273,000 113,178,000  
Fair Value $ 109,222,000 $ 114,375,000  
Percentage of Net Assets 1.90% 2.00%  
Professional services | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 456,681,000 $ 366,868,000  
Amortized Cost 451,577,000 363,522,000  
Fair Value $ 451,357,000 $ 364,946,000  
Percentage of Net Assets 7.70% 6.20%  
Professional services | Equity Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Amortized Cost   $ 16,247,000  
Fair Value   $ 16,233,000  
Percentage of Net Assets   0.30%  
Specialty retail | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 294,971,000 $ 262,131,000  
Amortized Cost 291,682,000 258,823,000  
Fair Value $ 289,315,000 $ 251,740,000  
Percentage of Net Assets 5.10% 4.30%  
Transportation | Debt Securities | Non-controlled, non-affiliated      
Schedule of Investments [Line Items]      
Par / Units $ 224,961,000 $ 226,607,000  
Amortized Cost 222,433,000 223,551,000  
Fair Value $ 223,649,000 $ 225,961,000  
Percentage of Net Assets 3.80% 3.80%  
Investment, Identifier [Axis]: 3ES Innovation Inc. (dba Aucerna), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[13],[14] 6.75% [15],[16],[17],[18]  
Par / Units $ 60,791,000 [11],[12],[13],[14] $ 61,259,000 [15],[16],[17],[18]  
Amortized Cost 60,361,000 [11],[12],[13],[14] 60,718,000 [15],[16],[17],[18]  
Fair Value $ 60,183,000 [11],[12],[13],[14] $ 60,340,000 [15],[16],[17],[18]  
Percentage of Net Assets 1.00% [11],[12],[13],[14] 1.00% [15],[16],[17],[18]  
Investment, Identifier [Axis]: 3ES Innovation Inc. (dba Aucerna), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[13],[14],[19] 6.75% [15],[16],[18],[20],[21]  
Par / Units $ 1,700,000 [11],[12],[13],[14],[19] $ 0 [15],[16],[18],[20],[21]  
Amortized Cost 1,679,000 [11],[12],[13],[14],[19] (27,000) [15],[16],[18],[20],[21]  
Fair Value $ 1,661,000 [11],[12],[13],[14],[19] $ (58,000) [15],[16],[18],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[13],[14],[19] 0.00% [15],[16],[18],[20],[21]  
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Fair Value $ 0 $ 0  
Investment, Identifier [Axis]: AAM Series 1.1 Rail and Domestic Intermodal Feeder, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[19],[22],[23],[24] 5    
Amortized Cost [12],[14],[19],[22],[23],[24] $ 5,000    
Fair Value [12],[14],[19],[22],[23],[24] $ 0    
Percentage of Net Assets [12],[14],[19],[22],[23],[24] 0.00%    
Investment, Identifier [Axis]: AAM Series 2.1 Aviation Feeder, LLC | Investment income from controlled, affiliated investments:      
Schedule of Investments [Line Items]      
Fair Value $ 1,368,000 $ 0  
Investment, Identifier [Axis]: AAM Series 2.1 Aviation Feeder, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[19],[22],[23],[24] 1,368    
Amortized Cost [12],[14],[19],[22],[23],[24] $ 1,373,000    
Fair Value [12],[14],[19],[22],[23],[24] $ 1,368,000    
Percentage of Net Assets [12],[14],[19],[22],[23],[24] 0.00%    
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[25]   9.00%  
Par / Units [15],[25]   $ 25,000,000  
Amortized Cost [15],[25]   24,705,000  
Fair Value [15],[25]   $ 24,875,000  
Percentage of Net Assets [15],[25]   0.40%  
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[13] 5.00% [15],[25]  
Par / Units $ 67,585,000 [11],[12],[13] $ 74,831,000 [15],[25]  
Amortized Cost 66,652,000 [11],[12],[13] 74,484,000 [15],[25]  
Fair Value $ 67,416,000 [11],[12],[13] $ 74,456,000 [15],[25]  
Percentage of Net Assets 1.20% [11],[12],[13] 1.30% [15],[25]  
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13],[19] 7.50%    
Par / Units [11],[12],[13],[19] $ 6,580,000    
Amortized Cost [11],[12],[13],[19] 6,485,000    
Fair Value [11],[12],[13],[19] $ 6,562,000    
Percentage of Net Assets [11],[12],[13],[19] 0.10%    
Investment, Identifier [Axis]: ASP Conair Holdings LP, Class A Units      
Schedule of Investments [Line Items]      
Units (in shares) 60,714 [12],[23],[24] 60,714 [16],[26],[27]  
Amortized Cost $ 6,071,000 [12],[23],[24] $ 6,071,000 [16],[26],[27]  
Fair Value $ 5,480,000 [12],[23],[24] $ 6,071,000 [16],[26],[27]  
Percentage of Net Assets 0.10% [12],[23],[24] 0.10% [16],[26],[27]  
Investment, Identifier [Axis]: Accela, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[28] 7.50% [15],[25]  
Interest, PIK 4.25% [11],[28] 4.25% [15],[25]  
Par / Units $ 24,599,000 [11],[28] $ 23,990,000 [15],[25]  
Amortized Cost 24,480,000 [11],[28] 23,818,000 [15],[25]  
Fair Value $ 24,291,000 [11],[28] $ 23,990,000 [15],[25]  
Percentage of Net Assets 0.40% [11],[28] 0.40% [15],[25]  
Investment, Identifier [Axis]: Accela, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 7.00% [11],[19],[28] 7.00% [15],[20]  
Par / Units $ 1,500,000 [11],[19],[28] $ 0 [15],[20]  
Amortized Cost 1,500,000 [11],[19],[28] 0 [15],[20]  
Fair Value $ 1,463,000 [11],[19],[28] $ 0 [15],[20]  
Percentage of Net Assets 0.00% [11],[19],[28] 0.00% [15],[20]  
Investment, Identifier [Axis]: Accelerate topco Holdings, LLC, Common Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 493    
Amortized Cost [12],[23],[24] $ 14,000    
Fair Value [12],[23],[24] $ 14,000    
Percentage of Net Assets [12],[23],[24] 0.00%    
Investment, Identifier [Axis]: Access CIG, LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.75% [11],[12],[13] 7.75% [15],[16],[25]  
Par / Units $ 58,760,000 [11],[12],[13] $ 58,760,000 [15],[16],[25]  
Amortized Cost 58,407,000 [11],[12],[13] 58,343,000 [15],[16],[25]  
Fair Value $ 58,024,000 [11],[12],[13] $ 58,466,000 [15],[16],[25]  
Percentage of Net Assets 1.00% [11],[12],[13] 1.00% [15],[16],[25]  
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[25],[29]   5.50%  
Par / Units [15],[16],[20],[25],[29]   $ 11,825,000  
Amortized Cost [15],[16],[20],[25],[29]   11,560,000  
Fair Value [15],[16],[20],[25],[29]   $ 11,554,000  
Percentage of Net Assets [15],[16],[20],[25],[29]   0.20%  
Investment, Identifier [Axis]: Alera Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[30] 5.50% [15],[16],[25]  
Par / Units $ 34,902,000 [11],[12],[30] $ 43,036,000 [15],[16],[25]  
Amortized Cost 34,212,000 [11],[12],[30] 42,097,000 [15],[16],[25]  
Fair Value $ 34,640,000 [11],[12],[30] $ 42,068,000 [15],[16],[25]  
Percentage of Net Assets 0.60% [11],[12],[30] 0.70% [15],[16],[25]  
Investment, Identifier [Axis]: AmSpec Group, Inc. (fka AmSpec Services Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13] 5.75% [15],[16],[17]  
Par / Units $ 109,411,000 [11],[12],[13] $ 110,265,000 [15],[16],[17]  
Amortized Cost 108,722,000 [11],[12],[13] 109,296,000 [15],[16],[17]  
Fair Value $ 108,589,000 [11],[12],[13] $ 109,713,000 [15],[16],[17]  
Percentage of Net Assets 1.90% [11],[12],[13] 1.80% [15],[16],[17]  
Investment, Identifier [Axis]: AmSpec Group, Inc. (fka AmSpec Services Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 3.75% [11],[12],[19],[31] 3.75% [15],[16],[20],[32]  
Par / Units $ 2,712,000 [11],[12],[19],[31] $ 3,796,000 [15],[16],[20],[32]  
Amortized Cost 2,638,000 [11],[12],[19],[31] 3,691,000 [15],[16],[20],[32]  
Fair Value $ 2,603,000 [11],[12],[19],[31] $ 3,724,000 [15],[16],[20],[32]  
Percentage of Net Assets 0.00% [11],[12],[19],[31] 0.10% [15],[16],[20],[32]  
Investment, Identifier [Axis]: Amergin Asset Management, LLC, Class A Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[23],[24] 50,000,000    
Amortized Cost [12],[14],[23],[24] $ 0    
Fair Value [12],[14],[23],[24] $ 0    
Percentage of Net Assets [12],[14],[23],[24] 0.00%    
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33],[34] 5.75%    
Par / Units [11],[12],[19],[33],[34] $ 0    
Amortized Cost [11],[12],[19],[33],[34] (2,000)    
Fair Value [11],[12],[19],[33],[34] $ (4,000)    
Percentage of Net Assets [11],[12],[19],[33],[34] 0.00%    
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[30] 5.75%    
Par / Units [11],[12],[30] $ 727,000    
Amortized Cost [11],[12],[30] 713,000    
Fair Value [11],[12],[30] $ 713,000    
Percentage of Net Assets [11],[12],[30] 0.00%    
Investment, Identifier [Axis]: AmeriLife Holdings LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33] 5.75%    
Par / Units [11],[12],[19],[33] $ 0    
Amortized Cost [11],[12],[19],[33] (2,000)    
Fair Value [11],[12],[19],[33] $ (1,000)    
Percentage of Net Assets [11],[12],[19],[33] 0.00%    
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[35] 6.50%    
Par / Units [11],[12],[35] $ 135,082,000    
Amortized Cost [11],[12],[35] 133,772,000    
Fair Value [11],[12],[35] $ 134,744,000    
Percentage of Net Assets [11],[12],[35] 2.30%    
Investment, Identifier [Axis]: Anaplan, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33] 6.50%    
Par / Units [11],[12],[19],[33] $ 0    
Amortized Cost [11],[12],[19],[33] (93,000)    
Fair Value [11],[12],[19],[33] $ (24,000)    
Percentage of Net Assets [11],[12],[19],[33] 0.00%    
Investment, Identifier [Axis]: Apex Group Treasury, LLC, Second lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[18],[20],[29]   6.75%  
Par / Units [15],[16],[18],[20],[29]   $ 0  
Amortized Cost [15],[16],[18],[20],[29]   0  
Fair Value [15],[16],[18],[20],[29]   $ 0  
Percentage of Net Assets [15],[16],[18],[20],[29]   0.00%  
Investment, Identifier [Axis]: Apex Group Treasury, LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[13],[14] 6.75% [15],[16],[17],[18]  
Par / Units $ 44,147,000 [11],[12],[13],[14] $ 19,000,000 [15],[16],[17],[18]  
Amortized Cost 43,484,000 [11],[12],[13],[14] 18,817,000 [15],[16],[17],[18]  
Fair Value $ 42,381,000 [11],[12],[13],[14] $ 18,810,000 [15],[16],[17],[18]  
Percentage of Net Assets 0.70% [11],[12],[13],[14] 0.30% [15],[16],[17],[18]  
Investment, Identifier [Axis]: Apex Service Partners Intermediate 2, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [12],[21] 12.50%    
Interest, PIK [12],[21] 12.50%    
Par / Units [12],[21] $ 47,500,000    
Amortized Cost [12],[21] 46,346,000    
Fair Value [12],[21] $ 46,313,000    
Percentage of Net Assets [12],[21] 0.80%    
Investment, Identifier [Axis]: Apex Service Partners, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[30],[34] 5.50%    
Par / Units [11],[12],[19],[30],[34] $ 832,000    
Amortized Cost [11],[12],[19],[30],[34] 820,000    
Fair Value [11],[12],[19],[30],[34] $ 826,000    
Percentage of Net Assets [11],[12],[19],[30],[34] 0.00%    
Investment, Identifier [Axis]: Apex Service Partners, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33] 5.50%    
Par / Units [11],[12],[19],[33] $ 0    
Amortized Cost [11],[12],[19],[33] (1,000)    
Fair Value [11],[12],[19],[33] $ 0    
Percentage of Net Assets [11],[12],[19],[33] 0.00%    
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13] 7.25% [15],[16]  
Par / Units $ 50,916,000 [11],[12],[13] $ 50,916,000 [15],[16]  
Amortized Cost 50,347,000 [11],[12],[13] 50,179,000 [15],[16],[36]  
Fair Value $ 50,916,000 [11],[12],[13] $ 50,916,000 [15],[16],[36]  
Percentage of Net Assets 0.90% [11],[12],[13] 0.90% [15],[16],[36]  
Investment, Identifier [Axis]: Apptio, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13],[19] 7.25% [15],[16],[17],[20]  
Par / Units $ 1,112,000 [11],[12],[13],[19] $ 1,112,000 [15],[16],[17],[20]  
Amortized Cost 1,090,000 [11],[12],[13],[19] 1,084,000 [15],[16],[17],[20]  
Fair Value $ 1,112,000 [11],[12],[13],[19] $ 1,112,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.00% [11],[12],[13],[19] 0.00% [15],[16],[17],[20]  
Investment, Identifier [Axis]: Aptive Environmental, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [12],[37] 12.00%    
Interest, PIK [12],[37] 6.00%    
Par / Units [12],[37] $ 12,045,000    
Amortized Cost [12],[37] 9,946,000    
Fair Value [12],[37] $ 10,268,000    
Percentage of Net Assets [12],[37] 0.20%    
Investment, Identifier [Axis]: Aramsco, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[28] 5.25% [15],[16],[25]  
Par / Units $ 55,466,000 [11],[12],[28] $ 55,899,000 [15],[16],[25]  
Amortized Cost 54,976,000 [11],[12],[28] 55,224,000 [15],[16],[25]  
Fair Value $ 55,327,000 [11],[12],[28] $ 55,899,000 [15],[16],[25]  
Percentage of Net Assets 0.90% [11],[12],[28] 0.90% [15],[16],[25]  
Investment, Identifier [Axis]: Aramsco, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[19],[28] 5.25% [15],[16],[20],[21]  
Par / Units $ 279,000 [11],[12],[19],[28] $ 0 [15],[16],[20],[21]  
Amortized Cost 213,000 [11],[12],[19],[28] (93,000) [15],[16],[20],[21]  
Fair Value $ 258,000 [11],[12],[19],[28] $ 0 [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[28] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Ardonagh Midco 2 PLC, Unsecured notes      
Schedule of Investments [Line Items]      
Interest [12],[14],[37] 11.50%    
Interest, PIK [16],[18],[38]   12.75%  
Par / Units $ 11,198,000 [12],[14],[37] $ 10,527,000 [16],[18],[38]  
Amortized Cost 11,131,000 [12],[14],[37] 10,451,000 [16],[18],[38]  
Fair Value $ 11,030,000 [12],[14],[37] $ 11,620,000 [16],[18],[38]  
Percentage of Net Assets 0.20% [12],[14],[37] 0.20% [16],[18],[38]  
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured EUR term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[39] 7.00%    
Par / Units [11],[12],[14],[39] $ 8,949,000    
Amortized Cost [11],[12],[14],[39] 10,045,000    
Fair Value [11],[12],[14],[39] $ 8,926,000    
Percentage of Net Assets [11],[12],[14],[39] 0.20%    
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured GBP delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[14],[19],[33],[34] 5.50% [15],[16],[18],[20],[29]  
Par / Units $ 0 [11],[12],[14],[19],[33],[34] $ 0 [15],[16],[18],[20],[29]  
Amortized Cost 0 [11],[12],[14],[19],[33],[34] 0 [15],[16],[18],[20],[29]  
Fair Value $ (68,000) [11],[12],[14],[19],[33],[34] $ 0 [15],[16],[18],[20],[29]  
Percentage of Net Assets 0.00% [11],[12],[14],[19],[33],[34] 0.00% [15],[16],[18],[20],[29]  
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured GBP term loan      
Schedule of Investments [Line Items]      
Interest 7.00% [11],[12],[14],[36] 6.75% [15],[16],[18],[40]  
Par / Units $ 96,736,000 [11],[12],[14],[36] $ 117,374,000 [15],[16],[18],[40]  
Amortized Cost 107,073,000 [11],[12],[14],[36] 106,703,000 [15],[16],[18],[40]  
Fair Value $ 96,736,000 [11],[12],[14],[36] $ 117,374,000 [15],[16],[18],[40]  
Percentage of Net Assets 1.70% [11],[12],[14],[36] 2.00% [15],[16],[18],[40]  
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured USD delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[18]   5.50%  
Par / Units [15],[16],[18],[36]   $ 26,784,000  
Amortized Cost [15],[16],[18],[36]   26,269,000  
Fair Value [15],[16],[18],[36]   $ 26,784,000  
Percentage of Net Assets [15],[16],[18],[36]   0.50%  
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured USD term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[36] 5.75%    
Par / Units [11],[12],[14],[36] $ 26,784,000    
Amortized Cost [11],[12],[14],[36] 26,354,000    
Fair Value [11],[12],[14],[36] $ 26,583,000    
Percentage of Net Assets [11],[12],[14],[36] 0.50%    
Investment, Identifier [Axis]: Ardonagh Midco 3 PLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[18],[41]   6.75%  
Par / Units [15],[16],[18],[41]   $ 10,388,000  
Amortized Cost [15],[16],[18],[41]   10,013,000  
Fair Value [15],[16],[18],[41]   $ 10,388,000  
Percentage of Net Assets [15],[16],[18],[41]   0.20%  
Investment, Identifier [Axis]: Armstrong Bidco Limited (dba The Access Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[19],[34],[37] 5.75%    
Par / Units [11],[12],[14],[19],[34],[37] $ 373,000    
Amortized Cost [11],[12],[14],[19],[34],[37] 401,000    
Fair Value [11],[12],[14],[19],[34],[37] $ 368,000    
Percentage of Net Assets [11],[12],[14],[19],[34],[37] 0.00%    
Investment, Identifier [Axis]: Armstrong Bidco Limited (dba The Access Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[37] 5.75%    
Par / Units [11],[12],[14],[37] $ 2,171,000    
Amortized Cost [11],[12],[14],[37] 2,335,000    
Fair Value [11],[12],[14],[37] $ 2,139,000    
Percentage of Net Assets [11],[12],[14],[37] 0.00%    
Investment, Identifier [Axis]: Aruba Investments Holdings LLC (dba Angus Chemical Company),Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[36]   7.75%  
Par / Units [15],[16],[36]   $ 10,000,000  
Amortized Cost [15],[16],[36]   9,867,000  
Fair Value [15],[16],[36]   $ 10,000,000  
Percentage of Net Assets [15],[16],[36]   0.20%  
Investment, Identifier [Axis]: Aruba Investments Holdings, LLC (dba Angus Chemical Company), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[28] 7.75%    
Par / Units [11],[12],[28] $ 10,000,000    
Amortized Cost [11],[12],[28] 9,877,000    
Fair Value [11],[12],[28] $ 9,725,000    
Percentage of Net Assets [11],[12],[28] 0.20%    
Investment, Identifier [Axis]: Ascend Buyer, LLC (dba PPC Flexible Packaging), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13] 5.75% [15],[16],[17]  
Par / Units $ 5,512,000 [11],[12],[13] $ 5,554,000 [15],[16],[17]  
Amortized Cost 5,463,000 [11],[12],[13] 5,500,000 [15],[16],[17]  
Fair Value $ 5,443,000 [11],[12],[13] $ 5,498,000 [15],[16],[17]  
Percentage of Net Assets 0.10% [11],[12],[13] 0.10% [15],[16],[17]  
Investment, Identifier [Axis]: Ascend Buyer, LLC (dba PPC Flexible Packaging), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[28] 5.75% [15],[16],[17],[20]  
Par / Units $ 75,000 [11],[12],[19],[28] $ 94,000 [15],[16],[17],[20]  
Amortized Cost 71,000 [11],[12],[19],[28] 89,000 [15],[16],[17],[20]  
Fair Value $ 68,000 [11],[12],[19],[28] $ 88,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.00% [11],[12],[19],[28] 0.00% [15],[16],[17],[20]  
Investment, Identifier [Axis]: Associations Finance, Inc., Preferred Stock      
Schedule of Investments [Line Items]      
Interest [12],[21],[24] 12.00%    
Interest, PIK [12],[21],[24] 12.00%    
Units (in shares) [12],[21],[24] 54,800,000    
Amortized Cost [12],[21],[24] $ 53,658,000    
Fair Value [12],[21],[24] $ 54,020,000    
Percentage of Net Assets [12],[21],[24] 0.90%    
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[30],[34] 6.50%    
Interest, PIK [11],[12],[19],[30],[34] 2.50%    
Par / Units [11],[12],[19],[30],[34] $ 2,920,000    
Amortized Cost [11],[12],[19],[30],[34] 2,455,000    
Fair Value [11],[12],[19],[30],[34] $ 2,796,000    
Percentage of Net Assets [11],[12],[19],[30],[34] 0.00%    
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[30] 6.50% [15],[16],[17]  
Interest, PIK 2.50% [11],[12],[30] 2.50% [15],[16],[17]  
Par / Units $ 383,931,000 [11],[12],[30] $ 452,630,000 [15],[16],[17]  
Amortized Cost 380,919,000 [11],[12],[30] 448,461,000 [15],[16],[17]  
Fair Value $ 382,833,000 [11],[12],[30] $ 448,102,000 [15],[16],[17]  
Percentage of Net Assets 6.50% [11],[12],[30] 7.50% [15],[16],[17]  
Investment, Identifier [Axis]: Associations, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[19],[33] 6.50% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (261,000) [11],[12],[19],[33] (302,000) [15],[16],[20],[21]  
Fair Value $ (82,000) [11],[12],[19],[33] $ (329,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Aviation Solutions Midco, LLC (dba STS Aviation), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.25% [11],[12],[13] 7.25% [15],[16],[17]  
Par / Units $ 213,170,000 [11],[12],[13] $ 214,643,000 [15],[16],[17]  
Amortized Cost 211,355,000 [11],[12],[13] 212,314,000 [15],[16],[17]  
Fair Value $ 205,709,000 [11],[12],[13] $ 202,838,000 [15],[16],[17]  
Percentage of Net Assets 3.50% [11],[12],[13] 3.40% [15],[16],[17]  
Investment, Identifier [Axis]: AxiomSL Group, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[19],[33],[34] 6.00% [15],[16],[20],[21],[29]  
Par / Units $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost (34,000) [11],[12],[19],[33],[34] (39,000) [15],[16],[20],[21],[29]  
Fair Value $ (62,000) [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[19],[33],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: AxiomSL Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[28] 6.00% [15],[16],[17]  
Par / Units $ 201,247,000 [11],[12],[28] $ 202,775,000 [15],[16],[17]  
Amortized Cost 199,326,000 [11],[12],[28] 200,614,000 [15],[16],[17]  
Fair Value $ 197,725,000 [11],[12],[28] $ 201,254,000 [15],[16],[17]  
Percentage of Net Assets 3.40% [11],[12],[28] 3.40% [15],[16],[17]  
Investment, Identifier [Axis]: AxiomSL Group, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[19],[33] 6.00% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (153,000) [11],[12],[19],[33] (190,000) [15],[16],[20],[21]  
Fair Value $ (319,000) [11],[12],[19],[33] $ (137,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: BCPE Nucleon (DE) SPV, LP, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [36] 7.00% [11],[12] 7.00% [15],[16]  
Par / Units $ 189,778,000 [11],[12],[36] $ 189,778,000 [15],[16]  
Amortized Cost [36] 187,677,000 [11],[12] 187,355,000 [15],[16]  
Fair Value [36] $ 188,829,000 [11],[12] $ 188,829,000 [15],[16]  
Percentage of Net Assets [36] 3.20% [11],[12] 3.20% [15],[16]  
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33],[34] 5.75% [15],[16],[20],[21],[29]  
Par / Units $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost (239,000) [11],[12],[19],[33],[34] (269,000) [15],[16],[20],[21],[29]  
Fair Value $ (315,000) [11],[12],[19],[33],[34] $ (133,000) [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[19],[33],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13] 5.75% [15],[16]  
Par / Units $ 113,196,000 [11],[12],[13] $ 114,052,000 [15],[16],[36]  
Amortized Cost 111,621,000 [11],[12],[13] 112,307,000 [15],[16],[36]  
Fair Value $ 110,649,000 [11],[12],[13] $ 112,227,000 [15],[16],[36]  
Percentage of Net Assets 1.90% [11],[12],[13] 1.90% [15],[16],[36]  
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc. (dba PartsSource), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33] 5.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (159,000) [11],[12],[19],[33] (190,000) [15],[16],[20],[21]  
Fair Value $ (267,000) [11],[12],[19],[33] $ (190,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: BCPE Watson (DE) ORML, LP, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[42],[43] 6.50%    
Par / Units [11],[12],[14],[42],[43] $ 15,000,000    
Amortized Cost [11],[12],[14],[42],[43] 14,855,000    
Fair Value [11],[12],[14],[42],[43] $ 14,850,000    
Percentage of Net Assets [11],[12],[14],[42],[43] 0.30%    
Investment, Identifier [Axis]: BCTO BSI Buyer, Inc. (dba Buildertrend), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 8.00% [11],[12],[30] 7.00% [15],[16],[17]  
Interest, PIK [11],[12],[30] 8.00%    
Par / Units $ 51,889,000 [11],[12],[30] $ 44,643,000 [15],[16],[17]  
Amortized Cost 51,448,000 [11],[12],[30] 44,258,000 [15],[16],[17]  
Fair Value $ 51,889,000 [11],[12],[30] $ 44,420,000 [15],[16],[17]  
Percentage of Net Assets 0.90% [11],[12],[30] 0.70% [15],[16],[17]  
Investment, Identifier [Axis]: BCTO BSI Buyer, Inc. (dba Buildertrend), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 7.00% [11],[12],[19],[33] 7.00% [15],[16],[17],[20]  
Par / Units $ 0 [11],[12],[19],[33] $ 3,018,000 [15],[16],[17],[20]  
Amortized Cost (90,000) [11],[12],[19],[33] 2,973,000 [15],[16],[17],[20]  
Fair Value $ 0 [11],[12],[19],[33] $ 2,991,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.10% [15],[16],[17],[20]  
Investment, Identifier [Axis]: BCTO WIW Holdings, Inc. (dba When I Work), Class A Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 13,000 [12],[23],[24] 13 [16],[26],[27]  
Amortized Cost $ 1,300,000 [12],[23],[24] $ 1,300,000 [16],[26],[27]  
Fair Value $ 1,171,000 [12],[23],[24] $ 1,300,000 [16],[26],[27]  
Percentage of Net Assets 0.00% [12],[23],[24] 0.00% [16],[26],[27]  
Investment, Identifier [Axis]: BEHP Co-Investor II, L.P., Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[23],[24] 1,269,969    
Amortized Cost [12],[14],[23],[24] $ 1,266,000    
Fair Value [12],[14],[23],[24] $ 1,270,000    
Percentage of Net Assets [12],[14],[23],[24] 0.00%    
Investment, Identifier [Axis]: BP Veraison Buyer, LLC (dba Sun World), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33],[34] 5.75% [15],[16],[20],[21],[29]  
Par / Units $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost (28,000) [11],[12],[19],[33],[34] (32,000) [15],[16],[20],[21],[29]  
Fair Value $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[19],[33],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: BP Veraison Buyer, LLC (dba Sun World), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13] 5.75% [15],[16],[44]  
Par / Units $ 68,858,000 [11],[12],[13] $ 69,381,000 [15],[16],[44]  
Amortized Cost 68,171,000 [11],[12],[13] 68,596,000 [15],[16],[44]  
Fair Value $ 68,342,000 [11],[12],[13] $ 68,687,000 [15],[16],[44]  
Percentage of Net Assets 1.20% [11],[12],[13] 1.20% [15],[16],[44]  
Investment, Identifier [Axis]: BP Veraison Buyer, LLC (dba Sun World), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33] 5.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (84,000) [11],[12],[19],[33] (97,000) [15],[16],[20],[21]  
Fair Value $ (65,000) [11],[12],[19],[33] $ (87,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Balrog Acquisition, Inc. (dba BakeMark), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[36]   7.00%  
Par / Units [15],[16],[36]   $ 22,000,000  
Amortized Cost [15],[16],[36]   21,821,000  
Fair Value [15],[16],[36]   $ 21,815,000  
Percentage of Net Assets [15],[16],[36]   0.40%  
Investment, Identifier [Axis]: Balrog Acquisition, Inc. (dba Bakemark), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 7.00%    
Par / Units [11],[12],[13] $ 22,000,000    
Amortized Cost [11],[12],[13] 21,834,000    
Fair Value [11],[12],[13] $ 21,560,000    
Percentage of Net Assets [11],[12],[13] 0.40%    
Investment, Identifier [Axis]: Bayshore Intermediate #2, L.P. (dba Boomi), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[28] 7.75%    
Interest, PIK 7.75% [11],[12],[28] 7.75% [15],[16],[17]  
Par / Units $ 90,127,000 [11],[12],[28] $ 82,962,000 [15],[16],[17]  
Amortized Cost 88,461,000 [11],[12],[28] 81,145,000 [15],[16],[17]  
Fair Value $ 88,099,000 [11],[12],[28] $ 81,095,000 [15],[16],[17]  
Percentage of Net Assets 1.50% [11],[12],[28] 1.40% [15],[16],[17]  
Investment, Identifier [Axis]: Bayshore Intermediate #2, L.P. (dba Boomi), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[19],[33] 6.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (130,000) [11],[12],[19],[33] (149,000) [15],[16],[20],[21]  
Fair Value $ (156,000) [11],[12],[19],[33] $ (156,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Black Mountain Sand Eagle Ford LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[17]   8.25%  
Par / Units [15],[16],[17]   $ 4,808,000  
Amortized Cost [15],[16],[17]   4,808,000  
Fair Value [15],[16],[17]   $ 4,808,000  
Percentage of Net Assets [15],[16],[17]   0.10%  
Investment, Identifier [Axis]: Blackhawk Network Holdings, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.00% [11],[12],[13] 7.00% [15],[16],[25]  
Par / Units $ 106,400,000 [11],[12],[13] $ 106,400,000 [15],[16],[25]  
Amortized Cost 105,856,000 [11],[12],[13] 105,763,000 [15],[16],[25]  
Fair Value $ 105,868,000 [11],[12],[13] $ 106,400,000 [15],[16],[25]  
Percentage of Net Assets 1.80% [11],[12],[13] 1.80% [15],[16],[25]  
Investment, Identifier [Axis]: Blend Labs, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [16],[26],[27]   72,317  
Amortized Cost [16],[26],[27]   $ 1,000,000  
Fair Value [16],[26],[27]   $ 515,000  
Percentage of Net Assets [16],[26],[27]   0.00%  
Investment, Identifier [Axis]: Blend Labs, Inc., Common stock      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[45] 72,317    
Amortized Cost [12],[23],[45] $ 1,000,000    
Fair Value [12],[23],[45] $ 160,000    
Percentage of Net Assets [12],[23],[45] 0.00%    
Investment, Identifier [Axis]: Blend Labs, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[28] 7.50% [15],[16],[17]  
Par / Units $ 67,500,000 [11],[12],[28] $ 67,500,000 [15],[16],[17]  
Amortized Cost 66,204,000 [11],[12],[28] 65,988,000 [15],[16],[17]  
Fair Value $ 66,319,000 [11],[12],[28] $ 66,150,000 [15],[16],[17]  
Percentage of Net Assets 1.10% [11],[12],[28] 1.10% [15],[16],[17]  
Investment, Identifier [Axis]: Blend Labs, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[19],[33] 7.50% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (56,000) [11],[12],[19],[33] (67,000) [15],[16],[20],[21]  
Fair Value $ (131,000) [11],[12],[19],[33] $ (150,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Blend Labs, Inc., Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 179,529 [12],[23],[24] 179,529 [16],[26],[27]  
Amortized Cost $ 975,000 [12],[23],[24] $ 975,000 [16],[26],[27]  
Fair Value $ 22,000 [12],[23],[24] $ 380,000 [16],[26],[27]  
Percentage of Net Assets 0.00% [12],[23],[24] 0.00% [16],[26],[27]  
Investment, Identifier [Axis]: Bracket Intermediate Holding Corp., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 4.25% [11],[12],[13],[46] 4.25% [15],[16],[17]  
Par / Units $ 512,000 [11],[12],[13],[46] $ 516,000 [15],[16],[17]  
Amortized Cost 488,000 [11],[12],[13],[46] 487,000 [15],[16],[17]  
Fair Value $ 485,000 [11],[12],[13],[46] $ 514,000 [15],[16],[17]  
Percentage of Net Assets 0.00% [11],[12],[13],[46] 0.00% [15],[16],[17]  
Investment, Identifier [Axis]: Bracket Intermediate Holding Corp., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 8.13% [11],[12],[13] 8.13% [15],[16],[17]  
Par / Units $ 26,250,000 [11],[12],[13] $ 26,250,000 [15],[16],[17]  
Amortized Cost 25,943,000 [11],[12],[13] 25,896,000 [15],[16],[17]  
Fair Value $ 25,134,000 [11],[12],[13] $ 26,119,000 [15],[16],[17]  
Percentage of Net Assets 0.40% [11],[12],[13] 0.40% [15],[16],[17]  
Investment, Identifier [Axis]: Brightway Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[28] 6.50% [15],[16],[17]  
Par / Units $ 26,708,000 [11],[12],[28] $ 26,842,000 [15],[16],[17]  
Amortized Cost 26,410,000 [11],[12],[28] 26,509,000 [15],[16],[17]  
Fair Value $ 26,174,000 [11],[12],[28] $ 26,507,000 [15],[16],[17]  
Percentage of Net Assets 0.40% [11],[12],[28] 0.40% [15],[16],[17]  
Investment, Identifier [Axis]: Brightway Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[19],[33] 6.50% [15],[20],[21]  
Par / Units $ 0 [11],[19],[33] $ 0 [15],[20],[21]  
Amortized Cost (34,000) [11],[19],[33] (39,000) [15],[20],[21]  
Fair Value $ (63,000) [11],[19],[33] $ (39,000) [15],[20],[21]  
Percentage of Net Assets 0.00% [11],[19],[33] 0.00% [15],[20],[21]  
Investment, Identifier [Axis]: Brooklyn Lender Co-Invest 2, L.P. (dba Boomi), Common Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 7,503,843    
Amortized Cost [12],[23],[24] $ 7,504,000    
Fair Value [12],[23],[24] $ 7,379,000    
Percentage of Net Assets [12],[23],[24] 0.10%    
Investment, Identifier [Axis]: Brooklyn Lender Co-Invest 2, L.P., Common Units      
Schedule of Investments [Line Items]      
Units (in shares) [16],[26],[27]   7,503,843  
Amortized Cost [16],[26],[27]   $ 7,504,000  
Fair Value [16],[26],[27]   $ 7,504,000  
Percentage of Net Assets [16],[26],[27]   0.10%  
Investment, Identifier [Axis]: CD&R Value Building Partners I, L.P. (dba Belron), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[23],[24] 33,108    
Amortized Cost [12],[14],[23],[24] $ 33,108,000    
Fair Value [12],[14],[23],[24] $ 32,614,000    
Percentage of Net Assets [12],[14],[23],[24] 0.60%    
Investment, Identifier [Axis]: CD&R Value Building Partners I, L.P., LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [16],[18],[26],[27]   33,000  
Amortized Cost [16],[18],[26],[27]   $ 33,065,000  
Fair Value [16],[18],[26],[27]   $ 33,000,000  
Percentage of Net Assets [16],[18],[26],[27]   0.60%  
Investment, Identifier [Axis]: CIBT Global, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[13],[47] 5.25% [15],[16],[17],[48]  
Interest, PIK 4.25% [11],[12],[13],[47] 4.25% [15],[16],[17],[48]  
Par / Units $ 874,000 [11],[12],[13],[47] $ 856,000 [15],[16],[17],[48]  
Amortized Cost 616,000 [11],[12],[13],[47] 629,000 [15],[16],[17],[48]  
Fair Value $ 507,000 [11],[12],[13],[47] $ 531,000 [15],[16],[17],[48]  
Percentage of Net Assets 0.00% [11],[12],[13],[47] 0.00% [15],[16],[17],[48]  
Investment, Identifier [Axis]: CIBT Global, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.75% [11],[12],[13],[47] 7.75% [15],[16],[48],[49]  
Interest, PIK 7.75% [11],[12],[13],[47] 6.75% [15],[16],[48],[49]  
Par / Units $ 63,678,000 [11],[12],[13],[47] $ 63,678,000 [15],[16],[48],[49]  
Amortized Cost 26,736,000 [11],[12],[13],[47] 26,745,000 [15],[16],[48],[49]  
Fair Value $ 10,506,000 [11],[12],[13],[47] $ 15,919,000 [15],[16],[48],[49]  
Percentage of Net Assets 0.20% [11],[12],[13],[47] 0.30% [15],[16],[48],[49]  
Investment, Identifier [Axis]: CP PIK DEBT ISSUER, LLC (dba CivicPlus, LLC), Unsecured notes      
Schedule of Investments [Line Items]      
Interest [11],[12],[43] 11.75%    
Interest, PIK [11],[12],[43] 11.75%    
Par / Units [11],[12],[43] $ 16,734,000    
Amortized Cost [11],[12],[43] 16,244,000    
Fair Value [11],[12],[43] $ 16,399,000    
Percentage of Net Assets [11],[12],[43] 0.30%    
Investment, Identifier [Axis]: CSC MKG Topco LLC. (dba Medical Knowledge Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[28] 5.75%    
Par / Units [11],[12],[28] $ 1,278,000    
Amortized Cost [11],[12],[28] 1,254,000    
Fair Value [11],[12],[28] $ 1,246,000    
Percentage of Net Assets [11],[12],[28] 0.00%    
Investment, Identifier [Axis]: Centrify Corporation, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[28] 5.75% [15],[16],[17]  
Par / Units $ 66,397,000 [11],[12],[28] $ 66,903,000 [15],[16],[17]  
Amortized Cost 65,038,000 [11],[12],[28] 65,383,000 [15],[16],[17]  
Fair Value $ 64,737,000 [11],[12],[28] $ 65,564,000 [15],[16],[17]  
Percentage of Net Assets 1.10% [11],[12],[28] 1.10% [15],[16],[17]  
Investment, Identifier [Axis]: Centrify Corporation, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[19],[28] 5.75% [15],[16],[20],[21]  
Par / Units $ 3,409,000 [11],[12],[19],[28] $ 0 [15],[16],[20],[21]  
Amortized Cost 3,261,000 [11],[12],[19],[28] (173,000) [15],[16],[20],[21]  
Fair Value $ 3,238,000 [11],[12],[19],[28] $ (136,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.10% [11],[12],[19],[28] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Chapford SMA Partnership, L.P. | Non-controlled, affiliated investments      
Schedule of Investments [Line Items]      
Fair Value $ 7,032,000 $ 0  
Investment, Identifier [Axis]: Chapford SMA Partnership, L.P., LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[19],[23],[24],[42],[50] 7,350    
Amortized Cost [12],[14],[19],[23],[24],[42],[50] $ 7,032,000    
Fair Value [12],[14],[19],[23],[24],[42],[50] $ 7,032,000    
Percentage of Net Assets [12],[14],[19],[23],[24],[42],[50] 0.10%    
Investment, Identifier [Axis]: CivicPlus, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[29]   6.00%  
Par / Units [15],[16],[20],[29]   $ 0  
Amortized Cost [15],[16],[20],[29]   0  
Fair Value [15],[16],[20],[29]   $ 0  
Percentage of Net Assets [15],[16],[20],[29]   0.00%  
Investment, Identifier [Axis]: CivicPlus, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[28] 6.00% [15],[16],[17]  
Interest, PIK [11],[12],[28] 2.50%    
Par / Units $ 34,545,000 [11],[12],[28] $ 14,236,000 [15],[16],[17]  
Amortized Cost 34,234,000 [11],[12],[28] 14,101,000 [15],[16],[17]  
Fair Value $ 34,460,000 [11],[12],[28] $ 14,094,000 [15],[16],[17]  
Percentage of Net Assets 0.60% [11],[12],[28] 0.20% [15],[16],[17]  
Investment, Identifier [Axis]: CivicPlus, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[19],[33] 6.00% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (24,000) [11],[12],[19],[33] (13,000) [15],[16],[20],[21]  
Fair Value $ (7,000) [11],[12],[19],[33] $ (13,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: ConAir Holdings LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[13] 7.50% [15],[16],[17]  
Par / Units $ 187,500,000 [11],[12],[13] $ 187,500,000 [15],[16],[17]  
Amortized Cost 186,275,000 [11],[12],[13] 186,174,000 [15],[16],[17]  
Fair Value $ 170,625,000 [11],[12],[13] $ 187,500,000 [15],[16],[17]  
Percentage of Net Assets 2.90% [11],[12],[13] 3.20% [15],[16],[17]  
Investment, Identifier [Axis]: Confluent Medical Technologies, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[30] 6.50%    
Par / Units [11],[12],[30] $ 1,000,000    
Amortized Cost [11],[12],[30] 982,000    
Fair Value [11],[12],[30] $ 985,000    
Percentage of Net Assets [11],[12],[30] 0.00%    
Investment, Identifier [Axis]: Cornerstone OnDemand, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[28] 6.50% [15],[16],[36]  
Par / Units $ 115,833,000 [11],[12],[28] $ 115,833,000 [15],[16],[36]  
Amortized Cost 114,253,000 [11],[12],[28] 114,128,000 [15],[16],[36]  
Fair Value $ 110,910,000 [11],[12],[28] $ 114,096,000 [15],[16],[36]  
Percentage of Net Assets 1.90% [11],[12],[28] 1.90% [15],[16],[36]  
Investment, Identifier [Axis]: Delta TopCo, Inc. (dba Infoblox, Inc.), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.25% [11],[12],[36] 7.25% [15],[16],[17]  
Par / Units $ 15,000,000 [11],[12],[36] $ 15,000,000 [15],[16],[17]  
Amortized Cost 14,939,000 [11],[12],[36] 14,934,000 [15],[16],[17]  
Fair Value $ 13,875,000 [11],[12],[36] $ 15,000,000 [15],[16],[17]  
Percentage of Net Assets 0.20% [11],[12],[36] 0.30% [15],[16],[17]  
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13],[19],[34] 6.00% [16],[17],[20],[29]  
Par / Units $ 5,961,000 [11],[12],[13],[19],[34] $ 2,003,000 [15],[16],[17],[20],[29]  
Amortized Cost 5,872,000 [11],[12],[13],[19],[34] 1,927,000 [15],[16],[17],[20],[29]  
Fair Value $ 5,876,000 [11],[12],[13],[19],[34] $ 1,983,000 [15],[16],[17],[20],[29]  
Percentage of Net Assets 0.10% [11],[12],[13],[19],[34] 0.00% [15],[16],[17],[20],[29]  
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[13] 6.00% [15],[16],[17]  
Par / Units $ 43,449,000 [11],[12],[13] $ 51,393,000 [15],[16],[17]  
Amortized Cost 42,870,000 [11],[12],[13] 50,665,000 [15],[16],[17]  
Fair Value $ 42,905,000 [11],[12],[13] $ 50,879,000 [15],[16],[17]  
Percentage of Net Assets 0.70% [11],[12],[13] 0.90% [15],[16],[17]  
Investment, Identifier [Axis]: Denali BuyerCo, LLC (dba Summit Companies), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33] 6.00% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (25,000) [11],[12],[19],[33] (34,000) [15],[16],[20],[21]  
Fair Value $ (37,000) [11],[12],[19],[33] $ (36,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Denali Holding LP (dba Summit Companies), Class A Units      
Schedule of Investments [Line Items]      
Units (in shares) [16],[26],[27]   313,850  
Amortized Cost [16],[26],[27]   $ 3,136,000  
Fair Value [16],[26],[27]   $ 3,136,000  
Percentage of Net Assets [16],[26],[27]   0.10%  
Investment, Identifier [Axis]: Denali Holding, LP (dba Summit Companies), Class A Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 313,580    
Amortized Cost [12],[23],[24] $ 3,431,000    
Fair Value [12],[23],[24] $ 4,168,000    
Percentage of Net Assets [12],[23],[24] 0.10%    
Investment, Identifier [Axis]: Diagnostic Service Holdings, Inc. (dba Rayus Radiology), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[28] 5.50%    
Par / Units [11],[12],[28] $ 998,000    
Amortized Cost [11],[12],[28] 998,000    
Fair Value [11],[12],[28] $ 992,000    
Percentage of Net Assets [11],[12],[28] 0.00%    
Investment, Identifier [Axis]: Diamondback Acquisition, Inc. (dba Sphera), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[19],[33],[34] 5.50% [15],[16],[20],[21],[29]  
Par / Units $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost (9,000) [11],[12],[19],[33],[34] (10,000) [15],[16],[20],[21],[29]  
Fair Value $ 0 [11],[12],[19],[33],[34] $ (11,000) [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[19],[33],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: Diamondback Acquisition, Inc. (dba Sphera), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[28] 5.50% [15],[16],[25]  
Par / Units $ 4,119,000 [11],[12],[28] $ 5,407,000 [15],[16],[25]  
Amortized Cost 4,047,000 [11],[12],[28] 5,302,000 [15],[16],[25]  
Fair Value $ 4,078,000 [11],[12],[28] $ 5,298,000 [15],[16],[25]  
Percentage of Net Assets 0.10% [11],[12],[28] 0.10% [15],[16],[25]  
Investment, Identifier [Axis]: Dodge Contruction Network Holdings, LP, Class A-2 Common Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 2,181,629    
Amortized Cost [12],[23],[24] $ 1,859,000    
Fair Value [12],[23],[24] $ 1,855,000    
Percentage of Net Assets [12],[23],[24] 0.00%    
Investment, Identifier [Axis]: Dodge Contruction Network Holdings, LP, Series A Preferred Units      
Schedule of Investments [Line Items]      
Interest [12],[21],[24] 8.25%    
Units (in shares) [12],[21],[24] 0    
Amortized Cost [12],[21],[24] $ 45,000    
Fair Value [12],[21],[24] $ 45,000    
Percentage of Net Assets [12],[21],[24] 0.00%    
Investment, Identifier [Axis]: Dodge Data & Analytics LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[17]   7.50%  
Par / Units [15],[16],[17]   $ 32,561,000  
Amortized Cost [15],[16],[17]   31,987,000  
Fair Value [15],[16],[17]   $ 33,538,000  
Percentage of Net Assets [15],[16],[17]   0.60%  
Investment, Identifier [Axis]: Dodge Data & Analytics LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[21]   7.50%  
Par / Units [15],[16],[20],[21]   $ 0  
Amortized Cost [15],[16],[20],[21]   (32,000)  
Fair Value [15],[16],[20],[21]   $ 0  
Percentage of Net Assets [15],[16],[20],[21]   0.00%  
Investment, Identifier [Axis]: Douglas Products and Packaging Company LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[28] 5.75% [15],[16],[17]  
Par / Units $ 105,356,000 [11],[12],[28] $ 106,179,000 [15],[16],[17]  
Amortized Cost 105,342,000 [11],[12],[28] 105,952,000 [15],[16],[17]  
Fair Value $ 104,566,000 [11],[12],[28] $ 105,117,000 [15],[16],[17]  
Percentage of Net Assets 1.80% [11],[12],[28] 1.80% [15],[16],[17]  
Investment, Identifier [Axis]: Douglas Products and Packaging Company LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 4.75% [11],[12],[19],[31] 4.75% [15],[16],[20],[32]  
Par / Units $ 6,270,000 [11],[12],[19],[31] $ 5,147,000 [15],[16],[20],[32]  
Amortized Cost 6,263,000 [11],[12],[19],[31] 5,135,000 [15],[16],[20],[32]  
Fair Value $ 6,159,000 [11],[12],[19],[31] $ 5,056,000 [15],[16],[20],[32]  
Percentage of Net Assets 0.10% [11],[12],[19],[31] 0.10% [15],[16],[20],[32]  
Investment, Identifier [Axis]: EET Buyer, Inc. (dba e-Emphasys), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[13] 5.75% [15],[16],[17]  
Par / Units $ 4,523,000 [11],[12],[13] $ 4,545,000 [15],[16],[17]  
Amortized Cost 4,483,000 [11],[12],[13] 4,501,000 [15],[16],[17]  
Fair Value $ 4,466,000 [11],[12],[13] $ 4,500,000 [15],[16],[17]  
Percentage of Net Assets 0.10% [11],[12],[13] 0.10% [15],[16],[17]  
Investment, Identifier [Axis]: EET Buyer, Inc. (dba e-Emphasys), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[19],[33] 5.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (4,000) [11],[12],[19],[33] (4,000) [15],[16],[20],[21]  
Fair Value $ (6,000) [11],[12],[19],[33] $ (5,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Elliott Alto Co-Investor Aggregator L.P., LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[23],[24] 3,134    
Amortized Cost [12],[14],[23],[24] $ 3,144,000    
Fair Value [12],[14],[23],[24] $ 3,134,000    
Percentage of Net Assets [12],[14],[23],[24] 0.10%    
Investment, Identifier [Axis]: Endries Acquisition, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[35] 6.25% [15],[16],[17]  
Par / Units $ 238,220,000 [11],[12],[35] $ 200,163,000 [15],[16],[17]  
Amortized Cost 236,072,000 [11],[12],[35] 197,994,000 [15],[16],[17]  
Fair Value $ 238,220,000 [11],[12],[35] $ 200,163,000 [15],[16],[17]  
Percentage of Net Assets 4.10% [11],[12],[35] 3.40% [15],[16],[17]  
Investment, Identifier [Axis]: Engage Debtco Limited, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[14] 5.75%    
Par / Units [11],[12],[14] $ 1,000,000    
Amortized Cost [11],[12],[14] 976,000    
Fair Value [11],[12],[14] $ 975,000    
Percentage of Net Assets [11],[12],[14] 0.00%    
Investment, Identifier [Axis]: Entertainment Benefits Group, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 4.75% [11],[12],[35] 8.25% [15],[16]  
Interest, PIK [15],[16]   2.50%  
Par / Units $ 865,000 [11],[12],[35] $ 83,600,000 [15],[16],[44]  
Amortized Cost 856,000 [11],[12],[35] 82,795,000 [15],[16],[44]  
Fair Value $ 862,000 [11],[12],[35] $ 79,838,000 [15],[16],[44]  
Percentage of Net Assets 0.00% [11],[12],[35] 1.30% [15],[16],[44]  
Investment, Identifier [Axis]: Entertainment Benefits Group, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 4.75% [11],[12],[19],[33] 8.25% [15],[16],[20],[21]  
Interest, PIK [15],[16],[20],[21]   2.50%  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (1,000) [11],[12],[19],[33] (91,000) [15],[16],[20],[21]  
Fair Value $ 0 [11],[12],[19],[33] $ (504,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Evology LLC, Class B Units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 451    
Amortized Cost [12],[23],[24] $ 2,160,000    
Fair Value [12],[23],[24] $ 2,160,000    
Percentage of Net Assets [12],[23],[24] 0.00%    
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[13] 6.25% [15],[16],[17]  
Par / Units $ 142,074,000 [11],[12],[13] $ 143,150,000 [15],[16],[17]  
Amortized Cost 140,376,000 [11],[12],[13] 141,253,000 [15],[16],[17]  
Fair Value $ 139,588,000 [11],[12],[13] $ 141,360,000 [15],[16],[17]  
Percentage of Net Assets 2.40% [11],[12],[13] 2.40% [15],[16],[17]  
Investment, Identifier [Axis]: Evolution BuyerCo, Inc. (dba SIAA), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[19],[33] 6.25% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (116,000) [11],[12],[19],[33] (135,000) [15],[16],[20],[21]  
Fair Value $ (187,000) [11],[12],[19],[33] $ (134,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Evolution Parent, LP (dba SIAA), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) 42,838 [12],[23],[24] 42,838 [16],[26],[27]  
Amortized Cost $ 4,284,000 [12],[23],[24] $ 4,284,000 [16],[26],[27]  
Fair Value $ 4,284,000 [12],[23],[24] $ 4,284,000 [16],[26],[27]  
Percentage of Net Assets 0.10% [12],[23],[24] 0.10% [16],[26],[27]  
Investment, Identifier [Axis]: Ex Vivo Parent Inc. (dba OB Hospitalist), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 9.50%    
Interest, PIK [15],[16],[17]   9.50%  
Par / Units $ 57,810,000 [11],[12],[13] $ 57,810,000 [15],[16],[17]  
Amortized Cost 56,773,000 [11],[12],[13] 56,685,000 [15],[16],[17]  
Fair Value $ 56,798,000 [11],[12],[13] $ 56,654,000 [15],[16],[17]  
Percentage of Net Assets 1.00% [11],[12],[13] 1.00% [15],[16],[17]  
Investment, Identifier [Axis]: FR Arsenal Holdings II Corp. (dba Applied-Cleveland Holdings, Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 9.50% [11],[28] 7.50% [15],[36]  
Interest, PIK [11],[28] 2.00%    
Par / Units $ 116,172,000 [11],[28] $ 118,253,000 [15],[36]  
Amortized Cost 116,299,000 [11],[28] 118,545,000 [15],[36]  
Fair Value $ 103,393,000 [11],[28] $ 112,932,000 [15],[36]  
Percentage of Net Assets 1.80% [11],[28] 1.90% [15],[36]  
Investment, Identifier [Axis]: Feradyne Outdoors, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[28] 6.25% [15],[16],[17]  
Par / Units $ 86,090,000 [11],[12],[28] $ 86,956,000 [15],[16],[17]  
Amortized Cost 85,955,000 [11],[12],[28] 86,671,000 [15],[16],[17]  
Fair Value $ 85,659,000 [11],[12],[28] $ 86,956,000 [15],[16],[17]  
Percentage of Net Assets 1.50% [11],[12],[28] 1.50% [15],[16],[17]  
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33],[34] 8.00%    
Par / Units [11],[12],[19],[33],[34] $ 0    
Amortized Cost [11],[12],[19],[33],[34] (229,000)    
Fair Value [11],[12],[19],[33],[34] $ 0    
Percentage of Net Assets [11],[12],[19],[33],[34] 0.00%    
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 9.35%    
Interest, PIK 9.35% [11],[12],[13] 9.50% [15],[16],[17]  
Par / Units $ 101,328,000 [11],[12],[13] $ 54,811,000 [15],[16],[17]  
Amortized Cost 100,331,000 [11],[12],[13] 54,119,000 [15],[16],[17]  
Fair Value $ 101,328,000 [11],[12],[13] $ 54,811,000 [15],[16],[17]  
Percentage of Net Assets 1.70% [11],[12],[13] 0.90% [15],[16],[17]  
Investment, Identifier [Axis]: Forescout Technologies, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 8.50% [11],[12],[19],[33] 8.50% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (54,000) [11],[12],[19],[33] (68,000) [15],[16],[20],[21]  
Fair Value $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13],[19],[34] 5.50% [15],[16],[20],[21],[29]  
Par / Units $ 284,000 [11],[12],[13],[19],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost 277,000 [11],[12],[13],[19],[34] (13,000) [15],[16],[20],[21],[29]  
Fair Value $ 273,000 [11],[12],[13],[19],[34] $ (13,000) [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[13],[19],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13] 5.50% [15],[16],[17]  
Par / Units $ 4,202,000 [11],[12],[13] $ 3,324,000 [15],[16],[17]  
Amortized Cost 4,127,000 [11],[12],[13] 3,259,000 [15],[16],[17]  
Fair Value $ 4,086,000 [11],[12],[13] $ 3,257,000 [15],[16],[17]  
Percentage of Net Assets 0.10% [11],[12],[13] 0.10% [15],[16],[17]  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[19],[36] 5.50% [15],[16],[20],[21]  
Par / Units $ 31,000 [11],[12],[19],[36] $ 0 [15],[16],[20],[21]  
Amortized Cost 23,000 [11],[12],[19],[36] (9,000) [15],[16],[20],[21]  
Fair Value $ 18,000 [11],[12],[19],[36] $ (9,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[36] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Foundation Consumer Brands, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 5.50%    
Par / Units [11],[12],[13] $ 3,529,000    
Amortized Cost [11],[12],[13] 3,529,000    
Fair Value [11],[12],[13] $ 3,511,000    
Percentage of Net Assets [11],[12],[13] 0.10%    
Investment, Identifier [Axis]: Fullsteam Operations, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13],[19],[34] 8.78%    
Interest, PIK [11],[12],[13],[19],[34] 5.78%    
Par / Units [11],[12],[13],[19],[34] $ 3,175,000    
Amortized Cost [11],[12],[13],[19],[34] 3,022,000    
Fair Value [11],[12],[13],[19],[34] $ 3,086,000    
Percentage of Net Assets [11],[12],[13],[19],[34] 0.10%    
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[21],[29]   6.00%  
Par / Units [15],[16],[20],[21],[29]   $ 0  
Amortized Cost [15],[16],[20],[21],[29]   (6,000)  
Fair Value [15],[16],[20],[21],[29]   $ (6,000)  
Percentage of Net Assets [15],[16],[20],[21],[29]   0.00%  
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[30] 6.00% [15],[16],[17]  
Par / Units $ 4,597,000 [11],[12],[30] $ 4,017,000 [15],[16],[17]  
Amortized Cost 4,515,000 [11],[12],[30] 3,938,000 [15],[16],[17]  
Fair Value $ 4,481,000 [11],[12],[30] $ 3,937,000 [15],[16],[17]  
Percentage of Net Assets 0.10% [11],[12],[30] 0.10% [15],[16],[17]  
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC (dba Rectangle Health), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[19],[30] 6.00% [15],[16],[20],[21]  
Par / Units $ 37,000 [11],[12],[19],[30] $ 0 [15],[16],[20],[21]  
Amortized Cost 31,000 [11],[12],[19],[30] (7,000) [15],[16],[20],[21]  
Fair Value $ 28,000 [11],[12],[19],[30] $ (7,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[30] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Gainsight, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 6.75%    
Interest, PIK 6.75% [11],[12],[13] 6.75% [15],[16],[17]  
Par / Units $ 20,705,000 [11],[12],[13] $ 19,547,000 [15],[16],[17]  
Amortized Cost 20,423,000 [11],[12],[13] 19,231,000 [15],[16],[17]  
Fair Value $ 20,290,000 [11],[12],[13] $ 19,254,000 [15],[16],[17]  
Percentage of Net Assets 0.30% [11],[12],[13] 0.30% [15],[16],[17]  
Investment, Identifier [Axis]: Gainsight, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[19],[33] 6.00% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (47,000) [11],[12],[19],[33] (55,000) [15],[16],[20],[21]  
Fair Value $ (67,000) [11],[12],[19],[33] $ (50,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Galls, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[13] 6.75% [15],[16],[17]  
Interest, PIK 0.50% [11],[12],[13] 0.50% [15],[16],[17]  
Par / Units $ 112,701,000 [11],[12],[13] $ 104,742,000 [15],[16],[17]  
Amortized Cost 112,006,000 [11],[12],[13] 103,983,000 [15],[16],[17]  
Fair Value $ 109,320,000 [11],[12],[13] $ 98,458,000 [15],[16],[17]  
Percentage of Net Assets 1.90% [11],[12],[13] 1.70% [15],[16],[17]  
Investment, Identifier [Axis]: Galls, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.75% [11],[12],[13],[19] 6.75% [15],[16],[17],[20]  
Par / Units $ 18,238,000 [11],[12],[13],[19] $ 11,943,000 [15],[16],[17],[20]  
Amortized Cost 18,010,000 [11],[12],[13],[19] 11,624,000 [15],[16],[17],[20]  
Fair Value $ 17,265,000 [11],[12],[13],[19] $ 9,999,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.30% [11],[12],[13],[19] 0.20% [15],[16],[17],[20]  
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[13] 6.50% [15],[16],[17]  
Par / Units $ 151,491,000 [11],[12],[13] $ 152,645,000 [15],[16],[17]  
Amortized Cost 150,293,000 [11],[12],[13] 151,277,000 [15],[16],[17]  
Fair Value $ 151,113,000 [11],[12],[13] $ 151,882,000 [15],[16],[17]  
Percentage of Net Assets 2.60% [11],[12],[13] 2.60% [15],[16],[17]  
Investment, Identifier [Axis]: Gaylord Chemical Company, L.L.C., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[19],[33] 6.50% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (92,000) [11],[12],[19],[33] (112,000) [15],[16],[20],[21]  
Fair Value $ (33,000) [11],[12],[19],[33] $ (66,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Genesis Acquisition Co. (dba Procare Software), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 3.75% [11],[12],[36] 4.00% [15],[16],[17]  
Par / Units $ 17,988,000 [11],[12],[36] $ 18,129,000 [15],[16],[17]  
Amortized Cost 17,868,000 [11],[12],[36] 17,961,000 [15],[16],[17]  
Fair Value $ 17,494,000 [11],[12],[36] $ 17,630,000 [15],[16],[17]  
Percentage of Net Assets 0.30% [11],[12],[36] 0.30% [15],[16],[17]  
Investment, Identifier [Axis]: Genesis Acquisition Co. (dba Procare Software), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 3.75% [11],[12],[36] 4.00% [15],[16],[17]  
Par / Units $ 2,637,000 [11],[12],[36] $ 2,637,000 [15],[16],[17]  
Amortized Cost 2,621,000 [11],[12],[36] 2,614,000 [15],[16],[17]  
Fair Value $ 2,564,000 [11],[12],[36] $ 2,564,000 [15],[16],[17]  
Percentage of Net Assets 0.00% [11],[12],[36] 0.00% [15],[16],[17]  
Investment, Identifier [Axis]: Gerson Lehrman Group, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [36] 5.25% [11],[12] 5.25% [15],[16]  
Par / Units [36] $ 121,939,000 [11],[12] $ 151,895,000 [15],[16]  
Amortized Cost [36] 121,446,000 [11],[12] 151,062,000 [15],[16]  
Fair Value [36] $ 121,939,000 [11],[12] $ 151,895,000 [15],[16]  
Percentage of Net Assets [36] 2.10% [11],[12] 2.60% [15],[16]  
Investment, Identifier [Axis]: Gerson Lehrman Group, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[19],[33] 5.25% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (79,000) [11],[12],[19],[33] (105,000) [15],[16],[20],[21]  
Fair Value $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Global Music Rights, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13] 5.75% [15],[16]  
Par / Units $ 7,444,000 [11],[12],[13] $ 7,500,000 [15],[16],[17]  
Amortized Cost 7,314,000 [11],[12],[13] 7,356,000 [15],[16],[17]  
Fair Value $ 7,407,000 [11],[12],[13] $ 7,350,000 [15],[16],[17]  
Percentage of Net Assets 0.10% [11],[12],[13] 0.10% [15],[16],[17]  
Investment, Identifier [Axis]: Global Music Rights, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[19],[33] 5.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (11,000) [11],[12],[19],[33] (13,000) [15],[16],[20],[21]  
Fair Value $ (3,000) [11],[12],[19],[33] $ (13,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Gloves Buyer, Inc. (dba Protective Industrial Products), Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 8.25% [11],[12],[28] 8.25% [15],[16],[25]  
Par / Units $ 29,250,000 [11],[12],[28] $ 29,250,000 [15],[16],[25]  
Amortized Cost 28,636,000 [11],[12],[28] 28,584,000 [15],[16],[25]  
Fair Value $ 28,811,000 [11],[12],[28] $ 28,884,000 [15],[16],[25]  
Percentage of Net Assets 0.50% [11],[12],[28] 0.50% [15],[16],[25]  
Investment, Identifier [Axis]: Gloves Holdings, LP (dba Protective Industrial Products), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 32,500    
Amortized Cost [12],[23],[24] $ 3,250,000    
Fair Value [12],[23],[24] $ 3,478,000    
Percentage of Net Assets [12],[23],[24] 0.10%    
Investment, Identifier [Axis]: Gloves Holdings, LP (dba Protective Industrial Products), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [16],[26],[27]   3,250  
Amortized Cost [16],[26],[27]   $ 3,250,000  
Fair Value [16],[26],[27]   $ 3,640,000  
Percentage of Net Assets [16],[26],[27]   0.10%  
Investment, Identifier [Axis]: GovBrands Intermediate, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13],[19],[34] 5.50% [15],[16],[20],[25],[29]  
Par / Units $ 2,380,000 [11],[12],[13],[19],[34] $ 2,404,000 [15],[16],[20],[25],[29]  
Amortized Cost 2,319,000 [11],[12],[13],[19],[34] 2,333,000 [15],[16],[20],[25],[29]  
Fair Value $ 2,263,000 [11],[12],[13],[19],[34] $ 2,330,000 [15],[16],[20],[25],[29]  
Percentage of Net Assets 0.00% [11],[12],[13],[19],[34] 0.00% [15],[16],[20],[25],[29]  
Investment, Identifier [Axis]: GovBrands Intermediate, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13] 5.50% [15],[16],[17]  
Par / Units $ 10,578,000 [11],[12],[13] $ 10,658,000 [15],[16],[17]  
Amortized Cost 10,356,000 [11],[12],[13] 10,407,000 [15],[16],[17]  
Fair Value $ 10,181,000 [11],[12],[13] $ 10,392,000 [15],[16],[17]  
Percentage of Net Assets 0.20% [11],[12],[13] 0.20% [15],[16],[17]  
Investment, Identifier [Axis]: GovBrands Intermediate, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[13],[19] 5.50% [15],[16],[20],[21]  
Par / Units $ 220,000 [11],[12],[13],[19] $ 0 [15],[16],[20],[21]  
Amortized Cost 204,000 [11],[12],[13],[19] (18,000) [15],[16],[20],[21]  
Fair Value $ 191,000 [11],[12],[13],[19] $ (20,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[13],[19] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Granicus, Inc. First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33] 6.50%    
Par / Units [11],[12],[19],[33] $ 0    
Amortized Cost [11],[12],[19],[33] (21,000)    
Fair Value [11],[12],[19],[33] $ (30,000)    
Percentage of Net Assets [11],[12],[19],[33] 0.00%    
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[13],[19],[34] 6.50% [15],[16],[17],[20],[29]  
Par / Units $ 1,524,000 [11],[12],[13],[19],[34] $ 1,535,000 [15],[16],[17],[29]  
Amortized Cost 1,492,000 [11],[12],[13],[19],[34] 1,498,000 [15],[16],[17],[29]  
Fair Value $ 1,470,000 [11],[12],[13],[19],[34] $ 1,501,000 [15],[16],[17],[29]  
Percentage of Net Assets 0.00% [11],[12],[13],[19],[34] 0.00% [15],[16],[17],[29]  
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[36] 6.50% [15],[16],[17]  
Par / Units $ 13,394,000 [11],[12],[36] $ 13,495,000 [15],[16],[17]  
Amortized Cost 13,146,000 [11],[12],[36] 13,211,000 [15],[16],[17]  
Fair Value $ 13,059,000 [11],[12],[36] $ 13,259,000 [15],[16],[17]  
Percentage of Net Assets 0.20% [11],[12],[36] 0.20% [15],[16],[17]  
Investment, Identifier [Axis]: Granicus, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[29]   6.50%  
Par / Units [15],[16],[20],[21]   $ 0  
Amortized Cost [15],[16],[20],[21]   (24,000)  
Fair Value [15],[16],[20],[21]   $ (21,000)  
Percentage of Net Assets [15],[16],[20],[21]   0.00%  
Investment, Identifier [Axis]: GrowthCurve Capital Sunrise Co-Invest LP (dba Brightway), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 638    
Amortized Cost [12],[23],[24] $ 638,000    
Fair Value [12],[23],[24] $ 632,000    
Percentage of Net Assets [12],[23],[24] 0.00%    
Investment, Identifier [Axis]: GrowthCurve Capital Sunrise Co-Invest LP, LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [16],[26],[27]   632  
Amortized Cost [16],[26],[27]   $ 633,000  
Fair Value [16],[26],[27]   $ 632,000  
Percentage of Net Assets [16],[26],[27]   0.00%  
Investment, Identifier [Axis]: Guidehouse Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.50% [11],[12],[28] 5.50% [15],[16],[25]  
Par / Units $ 4,614,000 [11],[12],[28] $ 4,649,000 [15],[16],[25]  
Amortized Cost 4,573,000 [11],[12],[28] 4,604,000 [15],[16],[25]  
Fair Value $ 4,568,000 [11],[12],[28] $ 4,603,000 [15],[16],[25]  
Percentage of Net Assets 0.10% [11],[12],[28] 0.10% [15],[16],[25]  
Investment, Identifier [Axis]: Guidehouse Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20]   5.50%  
Par / Units [15],[16],[20]   $ 0  
Amortized Cost [15],[16],[20]   0  
Fair Value [15],[16],[20]   $ (4,000)  
Percentage of Net Assets [15],[16],[20]   0.00%  
Investment, Identifier [Axis]: H&F Opportunities LUX III S.À R.L (dba Checkmarx), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[14],[28] 7.50% [15],[16],[17],[18],[36]  
Par / Units $ 51,567,000 [11],[12],[14],[28] $ 51,567,000 [15],[16],[18],[36]  
Amortized Cost 50,562,000 [11],[12],[14],[28] 50,388,000 [15],[16],[18],[36]  
Fair Value $ 51,567,000 [11],[12],[14],[28] $ 51,567,000 [15],[16],[18],[36]  
Percentage of Net Assets 0.90% [11],[12],[14],[28] 0.90% [15],[16],[18],[36]  
Investment, Identifier [Axis]: H&F Opportunities LUX III S.À R.L (dba Checkmarx), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 7.50% [11],[12],[14],[19],[33] 7.50% [15],[16],[18],[20],[21]  
Par / Units $ 0 [11],[12],[14],[19],[33] $ 0 [15],[16],[18],[20],[21]  
Amortized Cost (287,000) [11],[12],[14],[19],[33] (348,000) [15],[16],[18],[20],[21]  
Fair Value $ 0 [11],[12],[14],[19],[33] $ 0 [15],[16],[18],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[14],[19],[33] 0.00% [15],[16],[18],[20],[21]  
Investment, Identifier [Axis]: H-Food Holdings, LLC, LLC Interest      
Schedule of Investments [Line Items]      
Units (in shares) 10,875 [12],[23],[24] 10,875 [16],[26],[27]  
Amortized Cost $ 10,875,000 [12],[23],[24] $ 10,875,000 [16],[26],[27]  
Fair Value $ 11,318,000 [12],[23],[24] $ 13,633,000 [16],[26],[27]  
Percentage of Net Assets 0.20% [12],[23],[24] 0.20% [16],[26],[27]  
Investment, Identifier [Axis]: H-Food Holdings, LLC, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 7.00% [11],[12],[28] 7.00% [15],[16],[25]  
Par / Units $ 121,800,000 [11],[12],[28] $ 121,800,000 [15],[16],[25]  
Amortized Cost 120,215,000 [11],[12],[28] 119,919,000 [15],[16],[25]  
Fair Value $ 96,222,000 [11],[12],[28] $ 121,800,000 [15],[16],[25]  
Percentage of Net Assets 1.60% [11],[12],[28] 2.10% [15],[16],[25]  
Investment, Identifier [Axis]: HGH Purchaser, Inc. (dba Horizon Services), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13],[19] 5.75% [15],[16],[20],[29],[44]  
Par / Units $ 29,799,000 [11],[12],[13],[19] $ 33,699,000 [15],[16],[20],[29],[44]  
Amortized Cost 29,579,000 [11],[12],[13],[19] 33,376,000 [15],[16],[20],[29],[44]  
Fair Value $ 29,256,000 [11],[12],[13],[19] $ 33,429,000 [15],[16],[20],[29],[44]  
Percentage of Net Assets 0.50% [11],[12],[13],[19] 0.60% [15],[16],[20],[29],[44]  
Investment, Identifier [Axis]: HGH Purchaser, Inc. (dba Horizon Services), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13] 5.75% [15],[16],[17]  
Par / Units $ 147,498,000 [11],[12],[13] $ 108,230,000 [15],[16],[17]  
Amortized Cost 146,144,000 [11],[12],[13] 106,916,000 [15],[16],[17]  
Fair Value $ 145,285,000 [11],[12],[13] $ 107,418,000 [15],[16],[17]  
Percentage of Net Assets 2.50% [11],[12],[13] 1.80% [15],[16],[17]  
Investment, Identifier [Axis]: HGH Purchaser, Inc. (dba Horizon Services), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13],[19] 5.75% [15],[16],[17],[20]  
Par / Units $ 10,028,000 [11],[12],[13],[19] $ 2,689,000 [15],[16],[17],[20]  
Amortized Cost 9,895,000 [11],[12],[13],[19] 2,596,000 [15],[16],[17],[20]  
Fair Value $ 9,780,000 [11],[12],[13],[19] $ 2,616,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.20% [11],[12],[13],[19] 0.00% [15],[16],[17],[20]  
Investment, Identifier [Axis]: Hercules Borrower, LLC (dba The Vincit Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[36] 6.50%    
Par / Units [11],[12],[36] $ 177,343,000    
Amortized Cost [11],[12],[36] 175,353,000    
Fair Value [11],[12],[36] $ 176,897,000    
Percentage of Net Assets [11],[12],[36] 3.00%    
Investment, Identifier [Axis]: Hercules Borrower, LLC (dba The Vincit Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[36] 6.50%    
Par / Units [11],[12],[19],[36] $ 2,231,000    
Amortized Cost [11],[12],[19],[36] 2,011,000    
Fair Value [11],[12],[19],[36] $ 2,179,000    
Percentage of Net Assets [11],[12],[19],[36] 0.00%    
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), Common Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,190,000 [12],[23],[24],[51] 2,190,000 [16],[26],[27],[52]  
Amortized Cost $ 2,192,000 [12],[23],[24],[51] $ 2,192,000 [16],[26],[27],[52]  
Fair Value $ 2,192,000 [12],[23],[24],[51] $ 2,192,000 [16],[26],[27],[52]  
Percentage of Net Assets 0.00% [12],[23],[24],[51] 0.00% [16],[26],[27],[52]  
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[17]   6.50%  
Par / Units [15],[16],[17]   $ 178,693,000  
Amortized Cost [15],[16],[17]   176,397,000  
Fair Value [15],[16],[17]   $ 178,693,000  
Percentage of Net Assets [15],[16],[17]   3.00%  
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[21]   6.50%  
Par / Units [15],[16],[20],[21]   $ 0  
Amortized Cost [15],[16],[20],[21]   (259,000)  
Fair Value [15],[16],[20],[21]   $ 0  
Percentage of Net Assets [15],[16],[20],[21]   0.00%  
Investment, Identifier [Axis]: Hercules Buyer, LLC (dba The Vincit Group), Unsecured notes      
Schedule of Investments [Line Items]      
Interest [12],[21],[51] 0.48%    
Interest, PIK 0.48% [12],[21],[51] 0.48% [16],[38],[52]  
Par / Units $ 5,135,000 [12],[37],[51] $ 5,135,000 [16],[38],[52]  
Amortized Cost 5,135,000 [12],[37],[51] 5,135,000 [16],[38],[52]  
Fair Value $ 5,135,000 [12],[37],[51] $ 5,135,000 [16],[38],[52]  
Percentage of Net Assets 0.10% [12],[37],[51] 0.10% [16],[38],[52]  
Investment, Identifier [Axis]: Hg Genesis 8 Sumoco Limited, Unsecured facility      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[37] 7.50%    
Interest, PIK 7.50% [11],[12],[14],[37] 7.50% [15],[16],[18],[40]  
Par / Units $ 40,371,000 [11],[12],[14],[37] $ 47,207,000 [15],[16],[18],[40]  
Amortized Cost 47,833,000 [11],[12],[14],[37] 46,102,000 [15],[16],[18],[40]  
Fair Value $ 40,371,000 [11],[12],[14],[37] $ 47,207,000 [15],[16],[18],[40]  
Percentage of Net Assets 0.70% [11],[12],[14],[37] 0.80% [15],[16],[18],[40]  
Investment, Identifier [Axis]: Hg Genesis 9 SumoCo Limited, Unsecured facility      
Schedule of Investments [Line Items]      
Interest [11],[12],[14],[53] 7.00%    
Interest, PIK [11],[12],[14],[53] 7.00%    
Par / Units [11],[12],[14],[53] $ 42,227,000    
Amortized Cost [11],[12],[14],[53] 47,224,000    
Fair Value [11],[12],[14],[53] $ 42,227,000    
Percentage of Net Assets [11],[12],[14],[53] 0.70%    
Investment, Identifier [Axis]: Hg Saturn Luchaco Limited, Unsecured facility      
Schedule of Investments [Line Items]      
Interest [11],[14],[37] 7.50%    
Interest, PIK 7.50% [11],[14],[37] 7.50% [15],[16],[18],[40]  
Par / Units $ 119,844,000 [11],[12],[14],[37] $ 133,862,000 [15],[16],[18],[40]  
Amortized Cost 145,982,000 [11],[12],[14],[37] 135,510,000 [15],[16],[18],[40]  
Fair Value $ 118,346,000 [11],[12],[14],[37] $ 132,523,000 [15],[16],[18],[40]  
Percentage of Net Assets 2.00% [11],[12],[14],[37] 2.20% [15],[16],[18],[40]  
Investment, Identifier [Axis]: Hissho Sushi Holdings, LLC, Class A units      
Schedule of Investments [Line Items]      
Units (in shares) [12],[23],[24] 7,502    
Amortized Cost [12],[23],[24] $ 75,000    
Fair Value [12],[23],[24] $ 75,000    
Percentage of Net Assets [12],[23],[24] 0.00%    
Investment, Identifier [Axis]: Hissho Sushi Merger Sub LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[30] 6.00%    
Par / Units [11],[12],[30] $ 903,000    
Amortized Cost [11],[12],[30] 895,000    
Fair Value [11],[12],[30] $ 901,000    
Percentage of Net Assets [11],[12],[30] 0.00%    
Investment, Identifier [Axis]: Hissho Sushi Merger Sub LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[30] 6.00%    
Par / Units [11],[12],[19],[30] $ 5,000    
Amortized Cost [11],[12],[19],[30] 4,000    
Fair Value [11],[12],[19],[30] $ 4,000    
Percentage of Net Assets [11],[12],[19],[30] 0.00%    
Investment, Identifier [Axis]: Hometown Food Company, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.00% [11],[12],[28] 5.00% [15],[16],[25]  
Par / Units $ 14,560,000 [11],[12],[28] $ 15,947,000 [15],[16],[25]  
Amortized Cost 14,500,000 [11],[12],[28] 15,830,000 [15],[16],[25]  
Fair Value $ 14,487,000 [11],[12],[28] $ 15,787,000 [15],[16],[25]  
Percentage of Net Assets 0.20% [11],[12],[28] 0.30% [15],[16],[25]  
Investment, Identifier [Axis]: Hometown Food Company, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.00% [11],[12],[19],[28] 5.00% [15],[16],[20],[21]  
Par / Units $ 706,000 [11],[12],[19],[28] $ 0 [15],[16],[20],[21]  
Amortized Cost 690,000 [11],[12],[19],[28] (28,000) [15],[16],[20],[21]  
Fair Value $ 685,000 [11],[12],[19],[28] $ (42,000) [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[28] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Hyland Software, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[28] 6.25% [15],[16],[25]  
Par / Units $ 15,482,000 [11],[12],[28] $ 15,482,000 [15],[16],[25]  
Amortized Cost 15,471,000 [11],[12],[28] 15,468,000 [15],[16],[25]  
Fair Value $ 15,172,000 [11],[12],[28] $ 15,579,000 [15],[16],[25]  
Percentage of Net Assets 0.30% [11],[12],[28] 0.30% [15],[16],[25]  
Investment, Identifier [Axis]: IG Investments Holdings, LLC (dba Insight Global), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[13] 6.00% [15],[16],[17]  
Par / Units $ 50,516,000 [11],[12],[13] $ 50,898,000 [15],[16],[17]  
Amortized Cost 49,621,000 [11],[12],[13] 49,915,000 [15],[16],[17]  
Fair Value $ 49,632,000 [11],[12],[13] $ 50,008,000 [15],[16],[17]  
Percentage of Net Assets 0.80% [11],[12],[13] 0.80% [15],[16],[17]  
Investment, Identifier [Axis]: IG Investments Holdings, LLC (dba Insight Global), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.00% [11],[12],[19],[33] 6.00% [15],[16],[17],[20]  
Par / Units $ 0 [11],[12],[19],[33] $ 1,987,000 [15],[16],[17],[20]  
Amortized Cost (66,000) [11],[12],[19],[33] 1,911,000 [15],[16],[17],[20]  
Fair Value $ (70,000) [11],[12],[19],[33] $ 1,917,000 [15],[16],[17],[20]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[17],[20]  
Investment, Identifier [Axis]: IQN Holding Corp. (dba Beeline), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[36]   5.50%  
Par / Units [15],[16],[36]   $ 150,639,000  
Amortized Cost [15],[16],[36]   149,528,000  
Fair Value [15],[16],[36]   $ 150,639,000  
Percentage of Net Assets [15],[16],[36]   2.50%  
Investment, Identifier [Axis]: IQN Holding Corp. (dba Beeline), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[21]   5.50%  
Par / Units [15],[16],[20],[21]   $ 0  
Amortized Cost [15],[16],[20],[21]   (111,000)  
Fair Value [15],[16],[20],[21]   $ 0  
Percentage of Net Assets [15],[16],[20],[21]   0.00%  
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33],[34] 6.50%    
Par / Units [11],[12],[19],[33],[34] $ 0    
Amortized Cost [11],[12],[19],[33],[34] (7,000)    
Fair Value [11],[12],[19],[33],[34] $ (7,000)    
Percentage of Net Assets [11],[12],[19],[33],[34] 0.00%    
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[35] 6.50%    
Par / Units [11],[12],[35] $ 11,707,000    
Amortized Cost [11],[12],[35] 11,476,000    
Fair Value [11],[12],[35] $ 11,473,000    
Percentage of Net Assets [11],[12],[35] 0.20%    
Investment, Identifier [Axis]: Ideal Image Development, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[33] 6.50%    
Par / Units [11],[12],[19],[33] $ 0    
Amortized Cost [11],[12],[19],[33] (36,000)    
Fair Value [11],[12],[19],[33] $ (37,000)    
Percentage of Net Assets [11],[12],[19],[33] 0.00%    
Investment, Identifier [Axis]: Ideal Tridon Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[13] 5.25% [15],[16],[17]  
Par / Units $ 52,699,000 [11],[12],[13] $ 53,209,000 [15],[16],[17]  
Amortized Cost 52,410,000 [11],[12],[13] 52,784,000 [15],[16],[17]  
Fair Value $ 52,699,000 [11],[12],[13] $ 53,209,000 [15],[16],[17]  
Percentage of Net Assets 0.90% [11],[12],[13] 0.90% [15],[16],[17]  
Investment, Identifier [Axis]: Ideal Tridon Holdings, Inc., First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.25% [11],[12],[19] 5.25% [15],[16],[20],[25]  
Par / Units $ 0 [11],[12],[19] $ 1,800,000 [15],[16],[20],[25]  
Amortized Cost 0 [11],[12],[19] 1,782,000 [15],[16],[20],[25]  
Fair Value $ 0 [11],[12],[19] $ 1,800,000 [15],[16],[20],[25]  
Percentage of Net Assets 0.00% [11],[12],[19] 0.00% [15],[16],[20],[25]  
Investment, Identifier [Axis]: Imperial Parking Canada, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[54]   6.00%  
Interest, PIK [15],[16],[54]   1.25%  
Par / Units [15],[16],[54]   $ 27,966,000  
Amortized Cost [15],[16],[54]   26,705,000  
Fair Value [15],[16],[54]   $ 26,707,000  
Percentage of Net Assets [15],[16],[54]   0.40%  
Investment, Identifier [Axis]: Imprivata, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[35] 6.25%    
Par / Units [11],[12],[35] $ 882,000    
Amortized Cost [11],[12],[35] 874,000    
Fair Value [11],[12],[35] $ 867,000    
Percentage of Net Assets [11],[12],[35] 0.00%    
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[34] 5.75%    
Par / Units [11],[12],[19],[34] $ 0    
Amortized Cost [11],[12],[19],[34] 0    
Fair Value [11],[12],[19],[34] $ 0    
Percentage of Net Assets [11],[12],[19],[34] 0.00%    
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[30] 5.75%    
Par / Units [11],[12],[30] $ 648,000    
Amortized Cost [11],[12],[30] 642,000    
Fair Value [11],[12],[30] $ 647,000    
Percentage of Net Assets [11],[12],[30] 0.00%    
Investment, Identifier [Axis]: Indigo Buyer, Inc. (dba Inovar Packaging Group), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[19],[30] 5.75%    
Par / Units [11],[12],[19],[30] $ 17,000    
Amortized Cost [11],[12],[19],[30] 16,000    
Fair Value [11],[12],[19],[30] $ 16,000    
Percentage of Net Assets [11],[12],[19],[30] 0.00%    
Investment, Identifier [Axis]: Individual Foodservice Holdings, LLC, First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[20],[29],[36]   6.25%  
Par / Units [15],[16],[20],[29],[36]   $ 28,084,000  
Amortized Cost [15],[16],[20],[29],[36]   27,594,000  
Fair Value [15],[16],[20],[29],[36]   $ 27,909,000  
Percentage of Net Assets [15],[16],[20],[29],[36]   0.50%  
Investment, Identifier [Axis]: Individual Foodservice Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [15],[16],[17]   6.25%  
Par / Units [15],[16],[17]   $ 140,861,000  
Amortized Cost [15],[16],[17]   138,813,000  
Fair Value [15],[16],[17]   $ 140,156,000  
Percentage of Net Assets [15],[16],[17]   2.40%  
Investment, Identifier [Axis]: Individual Foodservice Holdings, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 6.25%    
Par / Units [11],[12],[13] $ 133,780,000    
Amortized Cost [11],[12],[13] 132,216,000    
Fair Value [11],[12],[13] $ 133,110,000    
Percentage of Net Assets [11],[12],[13] 2.30%    
Investment, Identifier [Axis]: Individual Foodservice Holdings, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[19],[33] 6.25% [15],[16],[20],[25]  
Par / Units $ 0 [11],[12],[19],[33] $ 959,000 [15],[16],[20],[25]  
Amortized Cost (199,000) [11],[12],[19],[33] 690,000 [15],[16],[20],[25]  
Fair Value $ (108,000) [11],[12],[19],[33] $ 851,000 [15],[16],[20],[25]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[25]  
Investment, Identifier [Axis]: Innovation Ventures HoldCo, LLC (dba 5 Hour Energy), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[35] 6.25%    
Par / Units [11],[12],[35] $ 125,000,000    
Amortized Cost [11],[12],[35] 122,838,000    
Fair Value [11],[12],[35] $ 121,564,000    
Percentage of Net Assets [11],[12],[35] 2.10%    
Investment, Identifier [Axis]: Inovalon Holdings, Inc, Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[13] 10.50%    
Interest, PIK [11],[12],[13] 10.50%    
Par / Units [11],[12],[13] $ 92,349,000    
Amortized Cost [11],[12],[13] 90,715,000    
Fair Value [11],[12],[13] $ 90,502,000    
Percentage of Net Assets [11],[12],[13] 1.50%    
Investment, Identifier [Axis]: Inovalon Holdings, Inc., First lien senior secured delayed draw term loan      
Schedule of Investments [Line Items]      
Interest 3.50% [11],[12],[19],[33],[34] 5.75% [15],[16],[20],[21],[29]  
Par / Units $ 0 [11],[12],[19],[33],[34] $ 0 [15],[16],[20],[21],[29]  
Amortized Cost (208,000) [11],[12],[19],[33],[34] (234,000) [15],[16],[20],[21],[29]  
Fair Value $ (332,000) [11],[12],[19],[33],[34] $ (237,000) [15],[16],[20],[21],[29]  
Percentage of Net Assets 0.00% [11],[12],[19],[33],[34] 0.00% [15],[16],[20],[21],[29]  
Investment, Identifier [Axis]: Inovalon Holdings, Inc., First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.25% [11],[12],[13] 5.75% [15],[16],[17]  
Interest, PIK [11],[12],[13] 2.75%    
Par / Units $ 181,462,000 [11],[12],[13] $ 177,727,000 [15],[16],[17]  
Amortized Cost 177,469,000 [11],[12],[13] 173,336,000 [15],[16],[17]  
Fair Value $ 176,018,000 [11],[12],[13] $ 173,283,000 [15],[16],[17]  
Percentage of Net Assets 3.00% [11],[12],[13] 2.90% [15],[16],[17]  
Investment, Identifier [Axis]: Inovalon Holdings, Inc., Second lien senior secured loan      
Schedule of Investments [Line Items]      
Interest, PIK [15],[16],[17]   10.50%  
Par / Units [15],[16],[17]   $ 84,661,000  
Amortized Cost [15],[16],[17]   82,975,000  
Fair Value [15],[16],[17]   $ 82,967,000  
Percentage of Net Assets [15],[16],[17]   1.40%  
Investment, Identifier [Axis]: Insight CP (Blocker) Holdings, L.P. (dba CivicPlus, LLC), LP Interest      
Schedule of Investments [Line Items]      
Units (in shares) [12],[14],[23],[24] 1,230    
Amortized Cost [12],[14],[23],[24] $ 1,230,000    
Fair Value [12],[14],[23],[24] $ 1,230,000    
Percentage of Net Assets [12],[14],[23],[24] 0.00%    
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [36] 5.75% [11],[12] 5.75% [15],[16]  
Par / Units [36] $ 217,201,000 [11],[12] $ 218,876,000 [15],[16]  
Amortized Cost [36] 215,258,000 [11],[12] 216,446,000 [15],[16]  
Fair Value [36] $ 216,658,000 [11],[12] $ 218,876,000 [15],[16]  
Percentage of Net Assets [36] 3.70% [11],[12] 3.70% [15],[16]  
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 5.75% [11],[12],[19],[33] 5.75% [15],[16],[20],[21]  
Par / Units $ 0 [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Amortized Cost (108,000) [11],[12],[19],[33] (135,000) [15],[16],[20],[21]  
Fair Value $ (37,000) [11],[12],[19],[33] $ 0 [15],[16],[20],[21]  
Percentage of Net Assets 0.00% [11],[12],[19],[33] 0.00% [15],[16],[20],[21]  
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[14],[30] 6.25% [15],[16],[17],[18]  
Par / Units $ 118,090,000 [11],[12],[14],[30] $ 115,684,000 [15],[16],[17],[18]  
Amortized Cost 117,029,000 [11],[12],[14],[30] 114,517,000 [15],[16],[17],[18]  
Fair Value $ 117,499,000 [11],[12],[14],[30] $ 115,395,000 [15],[16],[17],[18]  
Percentage of Net Assets 2.00% [11],[12],[14],[30] 1.90% [15],[16],[17],[18]  
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated (fka 11849573 Canada Inc.), First lien senior secured revolving loan      
Schedule of Investments [Line Items]      
Interest 6.50% [11],[12],[14],[19],[30] 6.25% [15],[16],[17],[18],[20]  
Par / Units $ 2,983,000 [11],[12],[14],[19],[30] $ 2,983,000 [15],[16],[17],[18],[20]  
Amortized Cost 2,950,000 [11],[12],[14],[19],[30] 2,944,000 [15],[16],[17],[18],[20]  
Fair Value $ 2,960,000 [11],[12],[14],[19],[30] $ 2,972,000 [15],[16],[17],[18],[20]  
Percentage of Net Assets 0.10% [11],[12],[14],[19],[30] 0.10% [15],[16],[17],[18],[20]  
Investment, Identifier [Axis]: Interoperability Bidco, Inc. (dba Lyniate), First lien senior secured loan      
Schedule of Investments [Line Items]      
Interest [11],[12],[30] 7.00%