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CONSOLIDATED SCHEDULE OF INVESTMENTS (Parenthetical)
$ in Thousands
Sep. 30, 2025
USD ($)
investment
Dec. 31, 2024
USD ($)
investment
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3]   4.75%
Net assets $ 881,485 $ 970,320
Fair Value $ 2,009,911 [4] $ 2,122,221 [5]
Percent of net assets 228.01% [6] 218.71% [7]
Restricted Security    
Schedule of Investments [Line Items]    
Number of restricted securities held | investment 62 52
Fair Value $ 40,941 $ 36,598
Percent of net assets 4.64% 3.77%
Qualifying Assets    
Schedule of Investments [Line Items]    
Percent of net assets 70.00% 70.00%
Non Qualifying Assets    
Schedule of Investments [Line Items]    
Percent of net assets 4.27% 4.71%
Investment, Identifier [Axis]: 360 Holdco, Inc. (360 Training) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [1],[3]
Fair Value $ 3,411 [4],[8] $ 3,438 [1],[5]
Percent of net assets 0.39% [6],[8] 0.35% [1],[7]
Investment, Identifier [Axis]: 360 Holdco, Inc. (360 Training) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ 0 [4],[10],[11] $ 0 [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: A&R Logistics Holdings, Inc. (Quantix SCS, LLC) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [9],[10],[13] 2.50% [3],[14],[15]
Fair Value $ 236 [4],[10],[13] $ 240 [5],[14],[15]
Percent of net assets 0.03% [6],[10],[13] 0.02% [7],[14],[15]
Investment, Identifier [Axis]: A&R Logistics Holdings, Inc. (Quantix SCS, LLC) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [8],[9],[13] 2.50% [3],[14],[15]
Fair Value $ 819 [4],[8],[13] $ 832 [5],[14],[15]
Percent of net assets 0.09% [6],[8],[13] 0.09% [7],[14],[15]
Investment, Identifier [Axis]: A&R Logistics Holdings, Inc. (Quantix SCS, LLC) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [9],[10],[13] 2.50% [3],[14],[15]
Fair Value $ 166 [4],[10],[13] $ 168 [5],[14],[15]
Percent of net assets 0.02% [6],[10],[13] 0.02% [7],[14],[15]
Investment, Identifier [Axis]: A&R Logistics Holdings, Inc. (Quantix SCS, LLC) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [9],[10],[13] 2.50% [3],[14],[15]
Fair Value $ 3,997 [4],[10],[13] $ 4,060 [5],[14],[15]
Percent of net assets 0.45% [6],[10],[13] 0.42% [7],[14],[15]
Investment, Identifier [Axis]: A&R Logistics Holdings, Inc. (Quantix SCS, LLC) 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [9],[10],[13] 2.50% [3],[15]
Fair Value $ 1,244 [4],[10],[13] $ 1,263 [5],[15]
Percent of net assets 0.14% [6],[10],[13] 0.13% [7],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation (Action Behavior Centers) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10] 5.25% [1],[2],[3]
Fair Value $ 1,458 [4],[10] $ 15,588 [1],[2],[5]
Percent of net assets 0.17% [6],[10] 1.60% [1],[2],[7]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation (Action Behavior Centers) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [2],[3],[12]
Fair Value $ 15,432 [4],[8],[10] $ 180 [2],[5],[12]
Percent of net assets 1.75% [6],[8],[10] 0.02% [2],[7],[12]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation (Action Behavior Centers) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.25% [3]
Fair Value $ 998 [4],[10],[11] $ 1,469 [5]
Percent of net assets 0.11% [6],[10],[11] 0.15% [7]
Investment, Identifier [Axis]: ACP Maverick Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ (33)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: ACP Maverick Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10],[13] 4.75%  
Fair Value [4],[8],[10],[13] $ 16,135  
Percent of net assets [6],[8],[10],[13] 1.83%  
Investment, Identifier [Axis]: ACP Tara Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9],[10],[13] 4.50% [1],[3],[14],[15]
Fair Value $ 12,378 [4],[8],[10],[13] $ 12,475 [1],[5],[14],[15]
Percent of net assets 1.40% [6],[8],[10],[13] 1.29% [1],[7],[14],[15]
Investment, Identifier [Axis]: ACP Tara Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[13] 5.75% [3],[14],[15]
Fair Value $ 717 [4],[8],[13] $ 1,706 [5],[14],[15]
Percent of net assets 0.08% [6],[8],[13] 0.18% [7],[14],[15]
Investment, Identifier [Axis]: ADPD Holdings LLC (NearU)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 6.00%  
Fair Value [4],[10],[13] $ 9,338  
Percent of net assets [6],[10],[13] 1.06%  
Investment, Identifier [Axis]: ADPD Holdings LLC (NearU) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14],[15]   6.00%
Fair Value [1],[2],[5],[14],[15]   $ 8,862
Percent of net assets [1],[2],[7],[14],[15]   0.91%
Investment, Identifier [Axis]: ADPD Holdings LLC (NearU) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   6.00%
Fair Value [2],[5],[12],[15]   $ (34)
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: ADPD Holdings LLC (NearU) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   6.00%
Fair Value [2],[5],[12],[15]   $ (68)
Percent of net assets [2],[7],[12],[15]   (0.01%)
Investment, Identifier [Axis]: ALKU Intermediate Holdings, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [9],[10] 6.25% [2],[3]
Fair Value $ 4,423 [4],[10] $ 4,512 [2],[5]
Percent of net assets 0.50% [6],[10] 0.47% [2],[7]
Investment, Identifier [Axis]: AMS Parent, LLC (All My Sons)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[16] 5.00% [3],[14]
Fair Value $ 4,878 [4],[8],[16] $ 5,175 [5],[14]
Percent of net assets 0.55% [6],[8],[16] 0.53% [7],[14]
Investment, Identifier [Axis]: ASTP Holdings CO-Investment LP (American Student Transportation Partners)    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 162
Percent of net assets [2],[7],[17]   0.02%
Investment, Identifier [Axis]: Accession Risk Management Group, Inc. (f/k/a RSC Acquisition Inc)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[15]   4.75%
Fair Value [2],[5],[14],[15]   $ 9,620
Percent of net assets [2],[7],[14],[15]   0.99%
Investment, Identifier [Axis]: Affinity Hospice Intermediate Holdings, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.75% [2],[3],[14]
Fair Value $ 5,261 [4],[8],[10] $ 6,531 [2],[5],[14]
Percent of net assets 0.60% [6],[8],[10] 0.67% [2],[7],[14]
Investment, Identifier [Axis]: All4 Buyer, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ (23)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: All4 Buyer, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.50%  
Fair Value [4],[8] $ 2,820  
Percent of net assets [6],[8] 0.32%  
Investment, Identifier [Axis]: Alta Buyer, LLC (GoEngineer) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 5.00% [1],[3],[14],[15]
Fair Value $ 11,366 [4],[8],[10],[13] $ 11,363 [1],[5],[14],[15]
Percent of net assets 1.29% [6],[8],[10],[13] 1.17% [1],[7],[14],[15]
Investment, Identifier [Axis]: Alta Buyer, LLC (GoEngineer) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[13] 5.00% [3],[14],[15]
Fair Value $ 3,096 [4],[8],[13] $ 3,095 [5],[14],[15]
Percent of net assets 0.35% [6],[8],[13] 0.32% [7],[14],[15]
Investment, Identifier [Axis]: Alta Buyer, LLC (GoEngineer) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [3],[15]
Fair Value $ 5,298 [4],[10],[13] $ 5,295 [5],[15]
Percent of net assets 0.60% [6],[10],[13] 0.55% [7],[15]
Investment, Identifier [Axis]: AmerCareRoyal, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 695 [4],[8] $ 713 [5],[14]
Percent of net assets 0.08% [6],[8] 0.07% [7],[14]
Investment, Identifier [Axis]: AmerCareRoyal, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ (5) [4],[10],[11] $ (2) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: AmerCareRoyal, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10] 5.00% [2],[3]
Fair Value $ 111 [4],[10] $ 114 [2],[5]
Percent of net assets 0.01% [6],[10] 0.01% [2],[7]
Investment, Identifier [Axis]: American Student Transportation Partners, Inc.    
Schedule of Investments [Line Items]    
Fair Value [2],[5]   $ 2,212
Percent of net assets [2],[7]   0.23%
Investment, Identifier [Axis]: Anne Arundel Dermatology Management, LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ 1,247 [4],[10],[18] $ 535 [2],[5],[19]
Percent of net assets 0.14% [6],[10],[18] 0.06% [2],[7],[19]
Investment, Identifier [Axis]: Anne Arundel Dermatology Management, LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 1,705 [4],[10],[18] $ 780 [2],[5],[19]
Percent of net assets 0.19% [6],[10],[18] 0.08% [2],[7],[19]
Investment, Identifier [Axis]: Anne Arundel Dermatology Management, LLC 3    
Schedule of Investments [Line Items]    
Fair Value $ 553 [4],[10] $ 533 [2],[5]
Percent of net assets 0.06% [6],[10] 0.05% [2],[7]
Investment, Identifier [Axis]: Anne Arundel Dermatology Management, LLC 4    
Schedule of Investments [Line Items]    
Fair Value $ 1,704 [4],[10],[11],[18] $ 581 [2],[5],[12],[19]
Percent of net assets 0.19% [6],[10],[11],[18] 0.06% [2],[7],[12],[19]
Investment, Identifier [Axis]: Apex Service Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [2],[3],[12],[15]
Fair Value $ 154 [4],[10],[13] $ 43 [2],[5],[12],[15]
Percent of net assets 0.02% [6],[10],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Apex Service Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [2],[3],[15]
Fair Value $ 154 [4],[10],[13] $ 154 [2],[5],[15]
Percent of net assets 0.02% [6],[10],[13] 0.02% [2],[7],[15]
Investment, Identifier [Axis]: Apex Service Partners, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.00% [2],[3],[12],[15]
Fair Value $ 0 [4],[10],[11],[13] $ 37 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Apex Service Partners, LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [2],[3],[15]
Fair Value $ 628 [4],[10],[13] $ 627 [2],[5],[15]
Percent of net assets 0.07% [6],[10],[13] 0.06% [2],[7],[15]
Investment, Identifier [Axis]: Archer Acquisition, LLC (ARMstrong) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 5.00% [3],[14]
Fair Value $ 6,764 [4],[8] $ 11,225 [5],[14]
Percent of net assets 0.77% [6],[8] 1.16% [7],[14]
Investment, Identifier [Axis]: Archer Acquisition, LLC (ARMstrong) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ 232 [4],[10],[11] $ 294 [2],[5],[12]
Percent of net assets 0.03% [6],[10],[11] 0.03% [2],[7],[12]
Investment, Identifier [Axis]: Armstrong Midco, LLC (Armstrong Transport Group)    
Schedule of Investments [Line Items]    
Fair Value $ 1,242 [4],[10] $ 1,083 [2],[5]
Percent of net assets 0.14% [6],[10] 0.11% [2],[7]
Investment, Identifier [Axis]: Armstrong Transport Group, LLC    
Schedule of Investments [Line Items]    
Fair Value $ 7,934 [4],[10] $ 7,450 [2],[5]
Percent of net assets 0.90% [6],[10] 0.77% [2],[7]
Investment, Identifier [Axis]: Arotech Corporation 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14]   6.00%
Fair Value [2],[5],[14]   $ 14,965
Percent of net assets [2],[7],[14]   1.54%
Investment, Identifier [Axis]: Arotech Corporation 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14]   6.00%
Fair Value [2],[5],[14]   $ 728
Percent of net assets [2],[7],[14]   0.08%
Investment, Identifier [Axis]: Ascend Partner Services LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 4.50% [1],[2],[3]
Fair Value $ 9,481 [4],[10],[11] $ 7,289 [1],[2],[5]
Percent of net assets 1.08% [6],[10],[11] 0.75% [1],[2],[7]
Investment, Identifier [Axis]: Ascend Partner Services LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [2],[3],[12]
Fair Value $ 7,231 [4],[8] $ (119) [2],[5],[12]
Percent of net assets 0.82% [6],[8] (0.01%) [2],[7],[12]
Investment, Identifier [Axis]: Athlete Buyer, LLC (Allstar Holdings) 1    
Schedule of Investments [Line Items]    
Fair Value $ 2,317 [4],[10] $ 2,162 [2],[5]
Percent of net assets 0.26% [6],[10] 0.22% [2],[7]
Investment, Identifier [Axis]: Athlete Buyer, LLC (Allstar Holdings) 2    
Schedule of Investments [Line Items]    
Fair Value $ 4,410 [4],[10] $ 4,114 [2],[5]
Percent of net assets 0.50% [6],[10] 0.42% [2],[7]
Investment, Identifier [Axis]: Athlete Buyer, LLC (Allstar Holdings) 3    
Schedule of Investments [Line Items]    
Fair Value $ 5,596 [4],[10] $ 5,221 [2],[5]
Percent of net assets 0.63% [6],[10] 0.54% [2],[7]
Investment, Identifier [Axis]: Athlete Buyer, LLC (Allstar Holdings) 4    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[11] $ (100)  
Percent of net assets [6],[10],[11] (0.01%)  
Investment, Identifier [Axis]: Azalea TopCo, Inc. (Press Ganey)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[15],[20]   3.25%
Fair Value [1],[2],[5],[15],[20]   $ 5,864
Percent of net assets [1],[2],[7],[15],[20]   0.60%
Investment, Identifier [Axis]: B2B Industrial Products, LLC (AMW Acquisition Company, Inc.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [8],[9],[10] 6.75% [1],[3],[14]
Fair Value $ 13,901 [4],[8],[10] $ 13,536 [1],[5],[14]
Percent of net assets 1.58% [6],[8],[10] 1.40% [1],[7],[14]
Investment, Identifier [Axis]: B2B Industrial Products, LLC (AMW Acquisition Company, Inc.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.75% [9],[10] 6.75% [3],[14]
Fair Value $ 110 [4],[10] $ 107 [5],[14]
Percent of net assets 0.01% [6],[10] 0.01% [7],[14]
Investment, Identifier [Axis]: BCM One, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [3],[14]
Fair Value $ 5,665 [4],[8] $ 5,713 [5],[14]
Percent of net assets 0.64% [6],[8] 0.59% [7],[14]
Investment, Identifier [Axis]: BCM One, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [3],[14]
Fair Value $ 1,794 [4],[8] $ 1,808 [5],[14]
Percent of net assets 0.20% [6],[8] 0.19% [7],[14]
Investment, Identifier [Axis]: BCPE North Star US Holdco 2, Inc. (Dessert Holdings)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10],[13],[16] 7.25%  
Fair Value [4],[8],[10],[13],[16] $ 6,149  
Percent of net assets [6],[8],[10],[13],[16] 0.70%  
Investment, Identifier [Axis]: BCPE North Star US Holdco 2, Inc. (Dessert Holdings) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[15],[20]   7.25%
Fair Value [2],[5],[14],[15],[20]   $ 8,359
Percent of net assets [2],[7],[14],[15],[20]   0.86%
Investment, Identifier [Axis]: BCPE North Star US Holdco 2, Inc. (Dessert Holdings) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14],[20],[21]   4.00%
Fair Value [1],[5],[14],[20],[21]   $ 10,147
Percent of net assets [1],[7],[14],[20],[21]   1.05%
Investment, Identifier [Axis]: BPC Kodiak LLC (Turbine Engine Specialists)    
Schedule of Investments [Line Items]    
Fair Value $ 2,174 [4],[10],[22],[23],[24] $ 1,775 [2],[5],[17],[25]
Percent of net assets 0.25% [6],[10],[22],[23],[24] 0.18% [2],[7],[17],[25]
Investment, Identifier [Axis]: Bardstown PPC Buyer LLC (Bardstown Bourbon Company) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 7.75% [9],[10] 7.75% [2],[3]
Fair Value $ 9,203 [4],[10] $ 9,221 [2],[5]
Percent of net assets 1.04% [6],[10] 0.95% [2],[7]
Investment, Identifier [Axis]: Bardstown PPC Buyer LLC (Bardstown Bourbon Company) 2    
Schedule of Investments [Line Items]    
Fair Value $ 2,406 [4],[10],[23] $ 2,497 [2],[5],[17],[21]
Percent of net assets 0.27% [6],[10],[23] 0.26% [2],[7],[17],[21]
Investment, Identifier [Axis]: BayPine Monarch Co-Invest, LP    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 100  
Percent of net assets [6],[10],[23],[26] 0.01%  
Investment, Identifier [Axis]: Big Apple Advisory, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 3.50% [2],[3],[12]
Fair Value $ 12 [4],[10],[11] $ (41) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Big Apple Advisory, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 3.50% [2],[3],[12]
Fair Value $ 5 [4],[10],[11] $ (17) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Big Apple Advisory, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 3.50% [2],[3]
Fair Value $ 8,934 [4],[10] $ 8,869 [2],[5]
Percent of net assets 1.01% [6],[10] 0.91% [2],[7]
Investment, Identifier [Axis]: BlackRock Liquidity Funds T-Fund - Institutional Class    
Schedule of Investments [Line Items]    
Fair Value $ 40,182 [4] $ 40,812 [5]
Percent of net assets 4.56% [6] 4.20% [7]
Investment, Identifier [Axis]: BlueHalo Global Holdings, LLC (AEgis Technologies)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   6.00%
Fair Value [1],[2],[5],[14]   $ 19,852
Percent of net assets [1],[2],[7],[14]   2.05%
Investment, Identifier [Axis]: Bluebird PM Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.75%  
Fair Value [4],[10],[11] $ 3  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Bluebird PM Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.75%  
Fair Value [4],[8] $ 8,435  
Percent of net assets [6],[8] 0.96%  
Investment, Identifier [Axis]: Boardwalk Buyer LLC (Death Wish Coffee)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[13] 5.00% [1],[3],[14],[15]
Fair Value $ 9,625 [4],[8],[13] $ 9,700 [1],[5],[14],[15]
Percent of net assets 1.09% [6],[8],[13] 1.00% [1],[7],[14],[15]
Investment, Identifier [Axis]: Boulder Scientific Company, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.75% [3],[14]
Fair Value $ 1,978 [4],[8] $ 1,975 [5],[14]
Percent of net assets 0.22% [6],[8] 0.20% [7],[14]
Investment, Identifier [Axis]: Bounteous, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 4.75%  
Fair Value $ 5,252 [4],[8],[10] $ 5,287 [1],[2],[5]
Percent of net assets 0.60% [6],[8],[10] 0.54% [1],[2],[7]
Investment, Identifier [Axis]: Bounteous, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 4.75% [2],[3]
Fair Value $ 2,150 [4],[10] $ 2,164 [2],[5]
Percent of net assets 0.24% [6],[10] 0.22% [2],[7]
Investment, Identifier [Axis]: Bounteous, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 4.75% [2],[3]
Fair Value $ 2,718 [4],[10] $ 2,736 [2],[5]
Percent of net assets 0.31% [6],[10] 0.28% [2],[7]
Investment, Identifier [Axis]: Bounteous, Inc. 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 4.75% [2],[3]
Fair Value $ 3,514 [4],[10] $ 3,537 [2],[5]
Percent of net assets 0.40% [6],[10] 0.36% [2],[7]
Investment, Identifier [Axis]: Bradford Soap International, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.75%  
Fair Value [4],[10],[11] $ (5)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Bradford Soap International, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.75%  
Fair Value [4],[8] $ 2,986  
Percent of net assets [6],[8] 0.34%  
Investment, Identifier [Axis]: Bridges Consumer Healthcare Intermediate LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.25% [2],[3],[12]
Fair Value $ (73) [4],[10],[11] $ (27) [2],[5],[12]
Percent of net assets (0.01%) [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Bridges Consumer Healthcare Intermediate LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.25% [2],[3],[14]
Fair Value $ 2,155 [4],[10],[11] $ 5,756 [2],[5],[14]
Percent of net assets 0.24% [6],[10],[11] 0.59% [2],[7],[14]
Investment, Identifier [Axis]: Bridges Consumer Healthcare Intermediate LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 5.25%  
Fair Value [4],[8] $ 5,682  
Percent of net assets [6],[8] 0.64%  
Investment, Identifier [Axis]: BroadcastMed Holdco, LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ 3,621 [4],[10] $ 3,480 [2],[5]
Percent of net assets 0.41% [6],[10] 0.36% [2],[7]
Investment, Identifier [Axis]: BroadcastMed Holdco, LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 596 [4],[10],[23] $ 665 [2],[5],[17]
Percent of net assets 0.07% [6],[10],[23] 0.07% [2],[7],[17]
Investment, Identifier [Axis]: Buckeye Group Holdings, L.P. (JEGS Automotive) 1    
Schedule of Investments [Line Items]    
Fair Value $ 69 [4],[10],[13],[23] $ 399 [2],[5],[15],[17]
Percent of net assets 0.01% [6],[10],[13],[23] 0.04% [2],[7],[15],[17]
Investment, Identifier [Axis]: Buckeye Group Holdings, L.P. (JEGS Automotive) 2    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[13],[23] $ 404 [2],[5],[15],[17]
Percent of net assets 0.00% [6],[10],[13],[23] 0.04% [2],[7],[15],[17]
Investment, Identifier [Axis]: Buckeye Group Holdings, L.P. (JEGS Automotive) 3    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[13],[23] $ 0 [2],[5],[15],[17]
Percent of net assets 0.00% [6],[10],[13],[23] 0.00% [2],[7],[15],[17]
Investment, Identifier [Axis]: Bullhorn, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 5.00% [1],[2],[3],[14],[15]
Fair Value $ 13,671 [4],[8],[10],[13] $ 13,808 [1],[2],[5],[14],[15]
Percent of net assets 1.55% [6],[8],[10],[13] 1.42% [1],[2],[7],[14],[15]
Investment, Identifier [Axis]: Businessolver.com, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[13] 5.50% [3],[14],[15]
Fair Value $ 7,603 [4],[8],[13] $ 7,662 [5],[14],[15]
Percent of net assets 0.86% [6],[8],[13] 0.79% [7],[14],[15]
Investment, Identifier [Axis]: Businessolver.com, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11],[13] 5.50% [2],[3],[12],[15]
Fair Value $ 935 [4],[10],[11],[13] $ 274 [2],[5],[12],[15]
Percent of net assets 0.11% [6],[10],[11],[13] 0.03% [2],[7],[12],[15]
Investment, Identifier [Axis]: CDL Marketing Group, LLC (Career Now)    
Schedule of Investments [Line Items]    
Fair Value $ 1,070 [4],[10],[18] $ 2,673 [2],[5]
Percent of net assets 0.12% [6],[10],[18] 0.28% [2],[7]
Investment, Identifier [Axis]: CDL Marketing Group, LLC (Career Now) 1    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 0 [2],[5],[17]
Percent of net assets 0.00% [6],[10],[23] 0.00% [2],[7],[17]
Investment, Identifier [Axis]: CDL Marketing Group, LLC (Career Now) 2    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 0 [2],[5],[17]
Percent of net assets 0.00% [6],[10],[23] 0.00% [2],[7],[17]
Investment, Identifier [Axis]: CHS Investors, LLC    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 80  
Percent of net assets [6],[10],[23] 0.01%  
Investment, Identifier [Axis]: CLS Management Services, LLC (Contract Land Staff) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[3],[14]
Fair Value $ 7,389 [4],[8],[10] $ 7,439 [1],[5],[14]
Percent of net assets 0.84% [6],[8],[10] 0.77% [1],[7],[14]
Investment, Identifier [Axis]: CLS Management Services, LLC (Contract Land Staff) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 2,971 [4],[8] $ 2,990 [5],[14]
Percent of net assets 0.34% [6],[8] 0.31% [7],[14]
Investment, Identifier [Axis]: CLS Management Services, LLC (Contract Land Staff) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ 1,459 [4],[10],[11] $ (45) [2],[5],[12]
Percent of net assets 0.17% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: CMG HoldCo, LLC (Crete)    
Schedule of Investments [Line Items]    
Fair Value $ 854 [4],[10],[23] $ 858 [2],[5],[17]
Percent of net assets 0.09% [6],[10],[23] 0.09% [2],[7],[17]
Investment, Identifier [Axis]: CMP Ren Partners I-A LP (LMI Consulting, LLC)    
Schedule of Investments [Line Items]    
Fair Value $ 1,492 [4],[10],[23] $ 1,104 [2],[5],[17]
Percent of net assets 0.17% [6],[10],[23] 0.11% [2],[7],[17]
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. (CRCI Holdings Inc) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 5.00% [1],[2],[3],[15]
Fair Value $ 10,407 [4],[10],[13] $ 10,488 [1],[2],[5],[15]
Percent of net assets 1.18% [6],[10],[13] 1.08% [1],[2],[7],[15]
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. (CRCI Holdings Inc) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 5.00% [2],[3],[12],[15]
Fair Value $ 7 [4],[10],[11],[13] $ 7 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. (CRCI Holdings Inc) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value $ 5 [4],[10],[11],[13] $ 872 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.09% [2],[7],[12],[15]
Investment, Identifier [Axis]: Caldwell & Gregory LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 8.75% [9],[10] 9.25% [2],[3]
Fair Value $ 1,167 [4],[10] $ 1,034 [2],[5]
Percent of net assets 0.13% [6],[10] 0.11% [2],[7]
Investment, Identifier [Axis]: Calienger Acquisition, L.L.C. (Wpromote, LLC)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[10] 5.75% [3],[14]
Fair Value $ 4,277 [4],[8],[10] $ 4,339 [5],[14]
Percent of net assets 0.49% [6],[8],[10] 0.45% [7],[14]
Investment, Identifier [Axis]: Cedar Services Group, LLC (Evergreen Services Group II) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[15]   5.50%
Fair Value [2],[5],[14],[15]   $ 15,994
Percent of net assets [2],[7],[14],[15]   1.65%
Investment, Identifier [Axis]: Cedar Services Group, LLC (Evergreen Services Group II) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[15]   5.50%
Fair Value [2],[5],[15]   $ 12,931
Percent of net assets [2],[7],[15]   1.33%
Investment, Identifier [Axis]: Chroma Color Corporation 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.25% [8],[9] 6.00% [3],[14]
Fair Value $ 6,117 [4],[8] $ 6,205 [5],[14]
Percent of net assets 0.69% [6],[8] 0.64% [7],[14]
Investment, Identifier [Axis]: Chroma Color Corporation 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.25% [8],[9] 6.00% [3],[14]
Fair Value $ 1,350 [4],[8] $ 1,369 [5],[14]
Percent of net assets 0.16% [6],[8] 0.14% [7],[14]
Investment, Identifier [Axis]: Clean Solutions Buyer, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [3],[14]
Fair Value $ 962 [4],[8] $ 988 [5],[14]
Percent of net assets 0.11% [6],[8] 0.10% [7],[14]
Investment, Identifier [Axis]: Cobalt Service Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ 1,371 [4],[10],[11],[13] $ 123 [2],[5],[12],[15]
Percent of net assets 0.15% [6],[10],[11],[13] 0.01% [2],[7],[12],[15]
Investment, Identifier [Axis]: Cobalt Service Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[13] 4.75% [3],[14],[15]
Fair Value $ 1,810 [4],[8],[13] $ 1,818 [5],[14],[15]
Percent of net assets 0.21% [6],[8],[13] 0.19% [7],[14],[15]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [1],[2],[3],[15]
Fair Value $ 13,446 [4],[10],[13] $ 12,193 [1],[2],[5],[15]
Percent of net assets 1.53% [6],[10],[13] 1.25% [1],[2],[7],[15]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.00% [2],[3],[12],[15]
Fair Value $ (4) [4],[10],[11],[13] $ (14) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.00% [2],[3],[12],[15]
Fair Value $ (9) [4],[10],[11],[13] $ 1,081 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.11% [2],[7],[12],[15]
Investment, Identifier [Axis]: Cohen Advisory, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 4.50% [2],[3],[12]
Fair Value $ 216 [4],[10],[11] $ (48) [2],[5],[12]
Percent of net assets 0.02% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Cohen Advisory, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [2],[3]
Fair Value $ 8,620 [4],[8] $ 8,599 [2],[5]
Percent of net assets 0.98% [6],[8] 0.88% [2],[7]
Investment, Identifier [Axis]: Columbia Home Services LLC 1    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[11] $ 0  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Columbia Home Services LLC 2    
Schedule of Investments [Line Items]    
Fair Value [4],[10] $ 76  
Percent of net assets [6],[10] 0.01%  
Investment, Identifier [Axis]: Commercial Bakeries Corp. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10],[22] 5.50% [2],[3],[14],[21]
Fair Value $ 16,663 [4],[8],[10],[22] $ 16,905 [2],[5],[14],[21]
Percent of net assets 1.89% [6],[8],[10],[22] 1.74% [2],[7],[14],[21]
Investment, Identifier [Axis]: Commercial Bakeries Corp. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[22] 5.50% [3],[14],[21]
Fair Value $ 1,972 [4],[8],[22] $ 2,000 [5],[14],[21]
Percent of net assets 0.23% [6],[8],[22] 0.21% [7],[14],[21]
Investment, Identifier [Axis]: Concord FG Holdings, LP (E78)    
Schedule of Investments [Line Items]    
Fair Value $ 614 [4],[10],[23] $ 921 [2],[5],[17],[21]
Percent of net assets 0.07% [6],[10],[23] 0.10% [2],[7],[17],[21]
Investment, Identifier [Axis]: Conversion Holdings, L.P. (Specialized Packaging Group)    
Schedule of Investments [Line Items]    
Fair Value $ 197 [4],[10],[22],[23] $ 165 [2],[5],[17],[21]
Percent of net assets 0.02% [6],[10],[22],[23] 0.02% [2],[7],[17],[21]
Investment, Identifier [Axis]: Cornerstone Advisors of Arizona, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 4.75%  
Fair Value [4],[10],[13] $ 99  
Percent of net assets [6],[10],[13] 0.01%  
Investment, Identifier [Axis]: Cornerstone Advisors of Arizona, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.50%
Fair Value [5],[14]   $ 305
Percent of net assets [7],[14]   0.03%
Investment, Identifier [Axis]: Cornerstone Advisors of Arizona, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.50%
Fair Value [5],[14]   $ 2,271
Percent of net assets [7],[14]   0.23%
Investment, Identifier [Axis]: Cornerstone Advisors of Arizona, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.50%
Fair Value [5],[14]   $ 208
Percent of net assets [7],[14]   0.02%
Investment, Identifier [Axis]: Cornerstone Advisors of Arizona, LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.50%
Fair Value [5],[14]   $ 3,423
Percent of net assets [7],[14]   0.35%
Investment, Identifier [Axis]: Corporate Visions, Inc. (CVI Parent, Inc.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.00% [8],[9],[10] 1.00% [3],[14]
Fair Value $ 1,442 [4],[8],[10] $ 2,107 [5],[14]
Percent of net assets 0.16% [6],[8],[10] 0.22% [7],[14]
Investment, Identifier [Axis]: Corporate Visions, Inc. (CVI Parent, Inc.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.00% [8],[9],[10] 1.00% [3],[14]
Fair Value $ 1,640 [4],[8],[10] $ 2,398 [5],[14]
Percent of net assets 0.19% [6],[8],[10] 0.25% [7],[14]
Investment, Identifier [Axis]: Covercraft Parent III, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value $ 1,941 [4],[10],[18] $ 6,701 [2],[5]
Percent of net assets 0.22% [6],[10],[18] 0.69% [2],[7]
Investment, Identifier [Axis]: Covercraft Parent III, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 86 [2],[5],[17]
Percent of net assets 0.00% [6],[10],[23] 0.01% [2],[7],[17]
Investment, Identifier [Axis]: DH United Holdings, LLC (D&H United Fueling Solutions) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[3],[14]
Fair Value $ 7,227 [4],[8],[10] $ 7,342 [1],[5],[14]
Percent of net assets 0.82% [6],[8],[10] 0.76% [1],[7],[14]
Investment, Identifier [Axis]: DH United Holdings, LLC (D&H United Fueling Solutions) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [3],[14]
Fair Value $ 2,300 [4],[8],[10] $ 2,337 [5],[14]
Percent of net assets 0.26% [6],[8],[10] 0.24% [7],[14]
Investment, Identifier [Axis]: DH United Holdings, LLC (D&H United Fueling Solutions) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 1,516 [4],[8] $ 1,540 [5],[14]
Percent of net assets 0.17% [6],[8] 0.16% [7],[14]
Investment, Identifier [Axis]: DH United Holdings, LLC (D&H United Fueling Solutions) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[3],[14]
Fair Value $ 3,344 [4],[8],[10] $ 3,397 [1],[5],[14]
Percent of net assets 0.38% [6],[8],[10] 0.35% [1],[7],[14]
Investment, Identifier [Axis]: DH United Holdings, LLC (D&H United Fueling Solutions) 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.50% [2],[3],[12],[15]
Fair Value $ 4,214 [4],[10],[11],[13] $ 4,290 [2],[5],[12],[15]
Percent of net assets 0.48% [6],[10],[11],[13] 0.44% [2],[7],[12],[15]
Investment, Identifier [Axis]: DMC Holdco, LLC (DMC Power)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.75%  
Fair Value [4],[8] $ 4,912  
Percent of net assets [6],[8] 0.56%  
Investment, Identifier [Axis]: DMC Holdco, LLC (DMC Power) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.75%
Fair Value [5],[14]   $ 4,979
Percent of net assets [7],[14]   0.51%
Investment, Identifier [Axis]: DMC Holdco, LLC (DMC Power) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12]   5.75%
Fair Value [2],[5],[12]   $ 10
Percent of net assets [2],[7],[12]   0.00%
Investment, Identifier [Axis]: DRS Holdings III, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[13] 5.25%  
Fair Value [4],[8],[13] $ 2,881  
Percent of net assets [6],[8],[13] 0.33%  
Investment, Identifier [Axis]: Davidson Hotel Company LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ 53 [4],[10],[11] $ (10) [2],[5],[12]
Percent of net assets 0.01% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Davidson Hotel Company LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 3,188 [4],[8] $ 3,126 [5],[14]
Percent of net assets 0.36% [6],[8] 0.32% [7],[14]
Investment, Identifier [Axis]: Dermatology Intermediate Holdings III, Inc. (Forefront Dermatology)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.25% [8],[9],[13],[16] 4.25% [3],[14],[15],[20]
Fair Value $ 3,077 [4],[8],[13],[16] $ 3,174 [5],[14],[15],[20]
Percent of net assets 0.35% [6],[8],[13],[16] 0.33% [7],[14],[15],[20]
Investment, Identifier [Axis]: Diligent Corporation (fka Diamond Merger Sub II, Corp.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   5.00%
Fair Value [2],[5],[12],[15]   $ 25
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: Diligent Corporation (fka Diamond Merger Sub II, Corp.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[15]   5.00%
Fair Value [1],[2],[5],[15]   $ 3,855
Percent of net assets [1],[2],[7],[15]   0.40%
Investment, Identifier [Axis]: Diligent Corporation (fka Diamond Merger Sub II, Corp.) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[15]   5.00%
Fair Value [1],[2],[5],[15]   $ 22,489
Percent of net assets [1],[2],[7],[15]   2.32%
Investment, Identifier [Axis]: E-Tech Holdings Partnership, L.P. (E-Technologies Group, Inc.)    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 897  
Percent of net assets [6],[10],[23] 0.10%  
Investment, Identifier [Axis]: E-Tech Holdings partnership, L.P. (E-Technologies Group, Inc.)    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 714
Percent of net assets [2],[7],[17]   0.07%
Investment, Identifier [Axis]: EFC Holdings, LLC (EFC International) 1    
Schedule of Investments [Line Items]    
Fair Value $ 52 [4],[10],[23] $ 129 [2],[5],[17],[21]
Percent of net assets 0.01% [6],[10],[23] 0.01% [2],[7],[17],[21]
Investment, Identifier [Axis]: EFC Holdings, LLC (EFC International) 2    
Schedule of Investments [Line Items]    
Fair Value $ 182 [4],[10],[23] $ 172 [2],[5],[17],[21]
Percent of net assets 0.02% [6],[10],[23] 0.02% [2],[7],[17],[21]
Investment, Identifier [Axis]: ERA Industries, LLC (BTX Precision) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 5.00% [2],[3]
Fair Value $ 1,544 [4],[10] $ 1,549 [2],[5]
Percent of net assets 0.18% [6],[10] 0.16% [2],[7]
Investment, Identifier [Axis]: ERA Industries, LLC (BTX Precision) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 5.00% [2],[3],[12]
Fair Value $ 884 [4],[10] $ 735 [2],[5],[12]
Percent of net assets 0.10% [6],[10] 0.08% [2],[7],[12]
Investment, Identifier [Axis]: EVDR Purchaser, Inc. (Alternative Logistics Technologies Buyer, LLC) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.50% [1],[2],[3],[14],[15]
Fair Value $ 10,391 [4],[8],[10],[13] $ 10,464 [1],[2],[5],[14],[15]
Percent of net assets 1.18% [6],[8],[10],[13] 1.07% [1],[2],[7],[14],[15]
Investment, Identifier [Axis]: EVDR Purchaser, Inc. (Alternative Logistics Technologies Buyer, LLC) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11],[13] 5.50% [2],[3],[12],[15]
Fair Value $ (26) [4],[10],[11],[13] $ (28) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Element 78 Partners, LLC (E78) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3]
Fair Value $ 3,953 [4],[8],[10] $ 5,543 [2],[5]
Percent of net assets 0.45% [6],[8],[10] 0.57% [2],[7]
Investment, Identifier [Axis]: Element 78 Partners, LLC (E78) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10] 5.50% [3]
Fair Value $ 1,015 [4],[10] $ 1,423 [5]
Percent of net assets 0.12% [6],[10] 0.15% [7]
Investment, Identifier [Axis]: Element 78 Partners, LLC (E78) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 82 [4],[10],[11] $ 0 [2],[5],[12]
Percent of net assets 0.01% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Element 78 Partners, LLC (E78) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3]
Fair Value $ 2,972 [4],[8],[10] $ 4,168 [2],[5]
Percent of net assets 0.34% [6],[8],[10] 0.43% [2],[7]
Investment, Identifier [Axis]: Element 78 Partners, LLC (E78) 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 2,310 [4],[10],[11] $ 3,118 [2],[5],[12]
Percent of net assets 0.26% [6],[10],[11] 0.32% [2],[7],[12]
Investment, Identifier [Axis]: Eliassen Group, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10],[13] 5.75% [1],[3],[14],[15]
Fair Value $ 11,672 [4],[8],[10],[13] $ 11,947 [1],[5],[14],[15]
Percent of net assets 1.32% [6],[8],[10],[13] 1.23% [1],[7],[14],[15]
Investment, Identifier [Axis]: Eliassen Group, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[13] 5.75% [3],[14],[15]
Fair Value $ 840 [4],[8],[13] $ 860 [5],[14],[15]
Percent of net assets 0.10% [6],[8],[13] 0.09% [7],[14],[15]
Investment, Identifier [Axis]: Emburse, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.25%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Emburse, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.25%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Emburse, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 4.25%  
Fair Value [4],[10],[13] $ 73  
Percent of net assets [6],[10],[13] 0.01%  
Investment, Identifier [Axis]: Empower Brands Franchising, LLC (f/k/a Lynx Franchising LLC) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [8],[9],[10],[13] 6.25% [3],[14],[15]
Fair Value $ 9,625 [4],[8],[10],[13] $ 9,700 [5],[14],[15]
Percent of net assets 1.09% [6],[8],[10],[13] 1.00% [7],[14],[15]
Investment, Identifier [Axis]: Empower Brands Franchising, LLC (f/k/a Lynx Franchising LLC) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [9],[10],[13] 6.75% [1],[2],[3],[15]
Fair Value $ 6,672 [4],[10],[13] $ 6,794 [1],[2],[5],[15]
Percent of net assets 0.76% [6],[10],[13] 0.70% [1],[2],[7],[15]
Investment, Identifier [Axis]: Engineered Fastener Company, LLC (EFC International)    
Schedule of Investments [Line Items]    
Fair Value $ 3,292 [4],[10] $ 3,266 [2],[5]
Percent of net assets 0.37% [6],[10] 0.34% [2],[7]
Investment, Identifier [Axis]: Ensono, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[20]   4.00%
Fair Value [2],[5],[14],[20]   $ 14,095
Percent of net assets [2],[7],[14],[20]   1.45%
Investment, Identifier [Axis]: Entomo Brands Acquisitions, Inc. (Palmetto Exterminators)    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 1,137  
Percent of net assets [6],[10],[23] 0.13%  
Investment, Identifier [Axis]: Entomo Brands Acquisitions, Inc. (Palmetto Exterminators) 1    
Schedule of Investments [Line Items]    
Fair Value $ 867 [4],[10] $ 845 [2],[5]
Percent of net assets 0.10% [6],[10] 0.09% [2],[7]
Investment, Identifier [Axis]: Entomo Brands Acquisitions, Inc. (Palmetto Exterminators) 2    
Schedule of Investments [Line Items]    
Fair Value $ 662 [4],[10] $ 645 [2],[5]
Percent of net assets 0.08% [6],[10] 0.07% [2],[7]
Investment, Identifier [Axis]: Entomo Brands Acquisitions, Inc. (Palmetto Exterminators) 3    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 1,026
Percent of net assets [2],[7],[17]   0.11%
Investment, Identifier [Axis]: Erie Construction Mid-West, LLC (Erie Construction)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14]   4.75%
Fair Value [1],[5],[14]   $ 9,604
Percent of net assets [1],[7],[14]   0.99%
Investment, Identifier [Axis]: Erie Construction, LLC (Erie Construction)    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17],[21]   $ 535
Percent of net assets [2],[7],[17],[21]   0.06%
Investment, Identifier [Axis]: Esquire Deposition Solutions, LLC    
Schedule of Investments [Line Items]    
Fair Value $ 1,968 [4],[10] $ 1,765 [2],[5]
Percent of net assets 0.22% [6],[10] 0.18% [2],[7]
Investment, Identifier [Axis]: Excel Fitness Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [1],[3],[14]
Fair Value $ 9,775 [4],[8],[10] $ 9,826 [1],[5],[14]
Percent of net assets 1.11% [6],[8],[10] 1.01% [1],[7],[14]
Investment, Identifier [Axis]: Excel Fitness Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 471 [4],[10],[11] $ 474 [2],[5],[12]
Percent of net assets 0.05% [6],[10],[11] 0.05% [2],[7],[12]
Investment, Identifier [Axis]: Exterro, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [1],[3],[14]
Fair Value $ 9,389 [4],[8],[10] $ 9,569 [1],[5],[14]
Percent of net assets 1.07% [6],[8],[10] 0.99% [1],[7],[14]
Investment, Identifier [Axis]: Eyesouth Eye Care Holdco LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [1],[3],[14]
Fair Value $ 7,224 [4],[8],[10] $ 7,264 [1],[5],[14]
Percent of net assets 0.82% [6],[8],[10] 0.75% [1],[7],[14]
Investment, Identifier [Axis]: Eyesouth Eye Care Holdco LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10] 5.50% [2],[3]
Fair Value $ 2,368 [4],[10] $ 2,381 [2],[5]
Percent of net assets 0.27% [6],[10] 0.25% [2],[7]
Investment, Identifier [Axis]: FBG Holdings LLC    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 512  
Percent of net assets [6],[10],[23] 0.06%  
Investment, Identifier [Axis]: FH DMI Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [2],[3],[12]
Fair Value $ 478 [4],[10],[11] $ (10) [2],[5],[12]
Percent of net assets 0.05% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: FH DMI Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 1,960 [4],[8] $ 1,969 [5],[14]
Percent of net assets 0.22% [6],[8] 0.20% [7],[14]
Investment, Identifier [Axis]: FS NU Investors, LP (NearU)    
Schedule of Investments [Line Items]    
Fair Value $ 184 [4],[10],[13],[23] $ 159 [2],[5],[15],[17]
Percent of net assets 0.02% [6],[10],[13],[23] 0.02% [2],[7],[15],[17]
Investment, Identifier [Axis]: FS Parent Holding, LLC (FoodScience LLC) 1    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 5
Percent of net assets [2],[7],[17]   0.00%
Investment, Identifier [Axis]: FS Parent Holding, LLC (FoodScience LLC) 2    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 98
Percent of net assets [2],[7],[17]   0.01%
Investment, Identifier [Axis]: FSK Pallet Holding Corp. (Kamps Pallets)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[10] 6.00% [1],[3],[14]
Fair Value $ 9,132 [4],[8],[10] $ 9,510 [1],[5],[14]
Percent of net assets 1.04% [6],[8],[10] 0.98% [1],[7],[14]
Investment, Identifier [Axis]: First American Government Obligations Fund - Class Z    
Schedule of Investments [Line Items]    
Fair Value $ 1,847 [4] $ 30 [5]
Percent of net assets 0.21% [6] 0.00% [7]
Investment, Identifier [Axis]: FirstCall Mechanical Group, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 4.75% [2],[3],[12]
Fair Value $ 9,809 [4],[8] $ 6,196 [2],[5],[12]
Percent of net assets 1.11% [6],[8] 0.64% [2],[7],[12]
Investment, Identifier [Axis]: FirstCall Mechanical Group, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 4.75% [1],[2],[3]
Fair Value $ 15,350 [4],[10],[11] $ 9,856 [1],[2],[5]
Percent of net assets 1.74% [6],[10],[11] 1.02% [1],[2],[7]
Investment, Identifier [Axis]: Five Star Lower Holding LLC (Five Star Packaging)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14],[20]   4.25%
Fair Value [1],[5],[14],[20]   $ 7,468
Percent of net assets [1],[7],[14],[20]   0.77%
Investment, Identifier [Axis]: FoodScience, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ 1,996 [4],[10],[11] $ (61) [2],[5],[12]
Percent of net assets 0.23% [6],[10],[11] (0.01%) [2],[7],[12]
Investment, Identifier [Axis]: FoodScience, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 4.75% [2],[3]
Fair Value $ 5,800 [4],[8],[10] $ 5,870 [2],[5]
Percent of net assets 0.66% [6],[8],[10] 0.60% [2],[7]
Investment, Identifier [Axis]: FoodServices Brand Group, LLC    
Schedule of Investments [Line Items]    
Fair Value [4],[10] $ 3,010  
Percent of net assets [6],[10] 0.34%  
Investment, Identifier [Axis]: GHR Healthcare, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [3],[14],[15]
Fair Value $ 5,998 [4],[8],[10],[13] $ 6,183 [5],[14],[15]
Percent of net assets 0.68% [6],[8],[10],[13] 0.64% [7],[14],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[13] 5.25% [3],[14],[15]
Fair Value $ 1,876 [4],[10],[13] $ 1,934 [5],[14],[15]
Percent of net assets 0.21% [6],[10],[13] 0.20% [7],[14],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11],[13] 5.25% [2],[3],[12],[15]
Fair Value $ (90) [4],[10],[11],[13] $ (47) [2],[5],[12],[15]
Percent of net assets (0.01%) [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11],[13] 5.25% [2],[3],[12],[15]
Fair Value $ (30) [4],[10],[11],[13] $ (16) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [3],[14]
Fair Value $ 4,670 [4],[8],[10],[13] $ 4,814 [5],[14],[15]
Percent of net assets 0.53% [6],[8],[10],[13] 0.50% [7],[14],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 6    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [1],[3],[14],[15]
Fair Value $ 7,620 [4],[8],[10],[13] $ 7,854 [1],[5],[14],[15]
Percent of net assets 0.86% [6],[8],[10],[13] 0.81% [1],[7],[14],[15]
Investment, Identifier [Axis]: GHR Healthcare, LLC 7    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [1],[3],[14],[15]
Fair Value $ 3,543 [4],[8],[10],[13] $ 3,652 [1],[5],[14],[15]
Percent of net assets 0.40% [6],[8],[10],[13] 0.38% [1],[7],[14],[15]
Investment, Identifier [Axis]: Gabriel Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.80% [9],[10] 6.25% [2],[3]
Fair Value $ 657 [4],[10] $ 653 [2],[5]
Percent of net assets 0.07% [6],[10] 0.07% [2],[7]
Investment, Identifier [Axis]: Gabriel Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.80% [8],[9],[10],[13] 6.25% [1],[3],[14],[15]
Fair Value $ 9,006 [4],[8],[10],[13] $ 8,954 [1],[5],[14],[15]
Percent of net assets 1.02% [6],[8],[10],[13] 0.92% [1],[7],[14],[15]
Investment, Identifier [Axis]: Gabriel Partners, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.80% [8],[9],[10],[13] 6.25% [1],[3],[14],[15]
Fair Value $ 1,500 [4],[8],[10],[13] $ 1,492 [1],[5],[14],[15]
Percent of net assets 0.17% [6],[8],[10],[13] 0.15% [1],[7],[14],[15]
Investment, Identifier [Axis]: Gabriel Partners, LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 1.80% [8],[9],[10],[13] 6.25% [3],[14],[15]
Fair Value $ 3,718 [4],[8],[10],[13] $ 3,696 [5],[14],[15]
Percent of net assets 0.42% [6],[8],[10],[13] 0.38% [7],[14],[15]
Investment, Identifier [Axis]: Gannett Fleming, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 4.75% [1],[2],[3],[15]
Fair Value $ 17,566 [4],[10],[13] $ 17,669 [1],[2],[5],[15]
Percent of net assets 1.99% [6],[10],[13] 1.83% [1],[2],[7],[15]
Investment, Identifier [Axis]: Gannett Fleming, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ (15) [4],[10],[11],[13] $ (19) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Geds Equity Investors, LP (Esquire Deposition Services)    
Schedule of Investments [Line Items]    
Fair Value $ 267 [4],[10],[23] $ 300 [2],[5],[17]
Percent of net assets 0.03% [6],[10],[23] 0.03% [2],[7],[17]
Investment, Identifier [Axis]: Genesee Scientific LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10],[13] 5.75% [3],[14],[15]
Fair Value $ 5,236 [4],[8],[10],[13] $ 5,176 [5],[14],[15]
Percent of net assets 0.59% [6],[8],[10],[13] 0.53% [7],[14],[15]
Investment, Identifier [Axis]: Genesee Scientific LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10],[13] 5.75% [2],[3]
Fair Value $ 1,371 [4],[10],[13] $ 1,355 [2],[5],[15]
Percent of net assets 0.16% [6],[10],[13] 0.14% [2],[7],[15]
Investment, Identifier [Axis]: Gloves Buyer, Inc. (PIP)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14]   4.00%
Fair Value [1],[5],[14]   $ 9,052
Percent of net assets [1],[7],[14]   0.93%
Investment, Identifier [Axis]: GreyLion TGNL Holdings    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 855  
Percent of net assets [6],[10],[23],[26] 0.10%  
Investment, Identifier [Axis]: HBB Parent, LLC (High Bar Brands)    
Schedule of Investments [Line Items]    
Fair Value $ 302 [4],[10],[23] $ 376 [2],[5],[17],[21]
Percent of net assets 0.03% [6],[10],[23] 0.04% [2],[7],[17],[21]
Investment, Identifier [Axis]: HMA Equity, LP (Health Management Associates)    
Schedule of Investments [Line Items]    
Fair Value $ 414 [4],[10],[23] $ 547 [2],[5],[17]
Percent of net assets 0.04% [6],[10],[23] 0.06% [2],[7],[17]
Investment, Identifier [Axis]: HMN Acquirer Corp. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ (37) [4],[10],[11] $ (23) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: HMN Acquirer Corp. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.75% [3],[14]
Fair Value $ 6,449 [4],[8] $ 6,535 [5],[14]
Percent of net assets 0.73% [6],[8] 0.67% [7],[14]
Investment, Identifier [Axis]: Halo Buyer, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[20]   4.50%
Fair Value [5],[14],[20]   $ 5,348
Percent of net assets [7],[14],[20]   0.55%
Investment, Identifier [Axis]: Health Management Associates, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [8],[9],[10] 6.25% [2],[3],[14]
Fair Value $ 8,210 [4],[8],[10] $ 8,264 [2],[5],[14]
Percent of net assets 0.93% [6],[8],[10] 0.85% [2],[7],[14]
Investment, Identifier [Axis]: Health Management Associates, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [9],[10] 6.25% [2],[3],[12]
Fair Value $ 1,064 [4],[10] $ 742 [2],[5],[12]
Percent of net assets 0.12% [6],[10] 0.08% [2],[7],[12]
Investment, Identifier [Axis]: Healthspan Buyer, LLC (Thorne HealthTech)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 5.25% [3],[14]
Fair Value $ 10,420 [4],[8],[10] $ 10,495 [5],[14]
Percent of net assets 1.18% [6],[8],[10] 1.07% [7],[14]
Investment, Identifier [Axis]: Heartland Home Services, Inc. (Helios Buyer, Inc.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[10],[13] 6.00% [3],[14],[15]
Fair Value $ 6,194 [4],[8],[10],[13] $ 6,123 [5],[14],[15]
Percent of net assets 0.71% [6],[8],[10],[13] 0.63% [7],[14],[15]
Investment, Identifier [Axis]: Heartland Home Services, Inc. (Helios Buyer, Inc.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[10],[13] 6.00% [1],[3],[14],[15]
Fair Value $ 5,371 [4],[8],[10],[13] $ 5,310 [1],[5],[14],[15]
Percent of net assets 0.61% [6],[8],[10],[13] 0.55% [1],[7],[14],[15]
Investment, Identifier [Axis]: Heartland Home Services, Inc. (Helios Buyer, Inc.) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[10],[13] 6.00% [1],[3],[14],[15]
Fair Value $ 2,463 [4],[8],[10],[13] $ 2,435 [1],[5],[14],[15]
Percent of net assets 0.28% [6],[8],[10],[13] 0.25% [1],[7],[14],[15]
Investment, Identifier [Axis]: Heartland Paving Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ 4,923 [4],[10],[11] $ (54) [2],[5],[12]
Percent of net assets 0.56% [6],[10],[11] (0.01%) [2],[7],[12]
Investment, Identifier [Axis]: Heartland Paving Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 4.75% [2],[3],[12]
Fair Value $ 5,537 [4],[8],[10] $ (54) [2],[5],[12]
Percent of net assets 0.63% [6],[8],[10] (0.01%) [2],[7],[12]
Investment, Identifier [Axis]: Heartland Paving Partners, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 4.75% [3],[14]
Fair Value $ 8,251 [4],[8],[10] $ 8,469 [5],[14]
Percent of net assets 0.94% [6],[8],[10] 0.87% [7],[14]
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ 10,467 [4],[10] $ 2,218 [2],[5],[12]
Percent of net assets 1.19% [6],[10] 0.23% [2],[7],[12]
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 3,800 [4],[10] $ 10,003 [2],[5]
Percent of net assets 0.43% [6],[10] 1.03% [2],[7]
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC 3    
Schedule of Investments [Line Items]    
Fair Value $ 2,093 [4],[10] $ 2,001 [2],[5]
Percent of net assets 0.24% [6],[10] 0.21% [2],[7]
Investment, Identifier [Axis]: Helios Aggregator Holdings I LP (Pinnacle Supply Partners, LLC)    
Schedule of Investments [Line Items]    
Fair Value $ 177 [4],[10],[23] $ 213 [2],[5],[17]
Percent of net assets 0.02% [6],[10],[23] 0.02% [2],[7],[17]
Investment, Identifier [Axis]: HemaSource, Inc.    
Schedule of Investments [Line Items]    
Fair Value $ 5,230 [4],[10] $ 5,277 [2],[5]
Percent of net assets 0.59% [6],[10] 0.54% [2],[7]
Investment, Identifier [Axis]: High Bar Brands Operating, LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ (22) [4],[10],[11] $ 2,061 [2],[5]
Percent of net assets 0.00% [6],[10],[11] 0.21% [2],[7]
Investment, Identifier [Axis]: High Bar Brands Operating, LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 2,010 [4],[10] $ (8) [2],[5],[12]
Percent of net assets 0.23% [6],[10] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Hyperion Materials & Technologies, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 4.50% [1],[2],[3],[20]
Fair Value $ 2,551 [4],[10] $ 2,588 [1],[2],[5],[20]
Percent of net assets 0.29% [6],[10] 0.27% [1],[2],[7],[20]
Investment, Identifier [Axis]: ICE USA Infrastructure, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10] 5.25% [1],[3],[14]
Fair Value $ 6,298 [4],[8],[10] $ 6,511 [1],[5],[14]
Percent of net assets 0.71% [6],[8],[10] 0.67% [1],[7],[14]
Investment, Identifier [Axis]: IF&P Holding Company, LLC (Fresh Edge) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 4.50% [2],[3]
Fair Value $ 4,089 [4],[10] $ 3,963 [2],[5]
Percent of net assets 0.47% [6],[10] 0.41% [2],[7]
Investment, Identifier [Axis]: IF&P Holding Company, LLC (Fresh Edge) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 4.50% [2],[3]
Fair Value $ 816 [4],[10] $ 791 [2],[5]
Percent of net assets 0.09% [6],[10] 0.08% [2],[7]
Investment, Identifier [Axis]: IF&P Holding Company, LLC (Fresh Edge) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 4.50% [2],[3]
Fair Value $ 966 [4],[10] $ 937 [2],[5]
Percent of net assets 0.11% [6],[10] 0.10% [2],[7]
Investment, Identifier [Axis]: INS Intermediate II, LLC (Ergotech DBA Industrial Networking Solutions) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10] 6.50% [1],[3],[14]
Fair Value $ 1,921 [4],[10] $ 7,890 [1],[5],[14]
Percent of net assets 0.22% [6],[10] 0.81% [1],[7],[14]
Investment, Identifier [Axis]: INS Intermediate II, LLC (Ergotech DBA Industrial Networking Solutions) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9] 6.50% [2],[3],[12]
Fair Value $ 11,295 [4],[8] $ 2 [2],[5],[12]
Percent of net assets 1.28% [6],[8] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: ISG Enterprises, LLC (Industrial Service Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.75% [3],[14]
Fair Value $ 6,270 [4],[8] $ 6,344 [5],[14]
Percent of net assets 0.71% [6],[8] 0.65% [7],[14]
Investment, Identifier [Axis]: ISG Enterprises, LLC (Industrial Service Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.75% [3],[14]
Fair Value $ 3,265 [4],[8] $ 3,303 [5],[14]
Percent of net assets 0.37% [6],[8] 0.34% [7],[14]
Investment, Identifier [Axis]: Illumifin Corporation (Long Term Care Group)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10],[13] 3.27% [2],[3],[14],[15]
Fair Value $ 6,978 [4],[10],[13] $ 6,650 [2],[5],[14],[15]
Percent of net assets 0.79% [6],[10],[13] 0.69% [2],[7],[14],[15]
Investment, Identifier [Axis]: ImageFirst Holdings, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   4.25%
Fair Value [1],[2],[5],[14]   $ 8,442
Percent of net assets [1],[2],[7],[14]   0.87%
Investment, Identifier [Axis]: Impact Advisors, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ 10  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Impact Advisors, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 4.50%  
Fair Value [4],[8],[10] $ 12,812  
Percent of net assets [6],[8],[10] 1.45%  
Investment, Identifier [Axis]: Impact Parent Corporation (Impact Environmental Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.00% [2],[3],[14]
Fair Value $ 6,627 [4],[8],[10] $ 6,661 [2],[5],[14]
Percent of net assets 0.75% [6],[8],[10] 0.69% [2],[7],[14]
Investment, Identifier [Axis]: Impact Parent Corporation (Impact Environmental Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.00% [3],[14]
Fair Value $ 3,096 [4],[8] $ 3,112 [5],[14]
Percent of net assets 0.35% [6],[8] 0.32% [7],[14]
Investment, Identifier [Axis]: Impact Parent Corporation (Impact Environmental Group) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10] 5.00% [2],[3]
Fair Value $ 6,711 [4],[10] $ 6,745 [2],[5]
Percent of net assets 0.76% [6],[10] 0.70% [2],[7]
Investment, Identifier [Axis]: Impact Parent Corporation (Impact Environmental Group) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.00% [3],[14]
Fair Value $ 1,698 [4],[8] $ 1,706 [5],[14]
Percent of net assets 0.19% [6],[8] 0.18% [7],[14]
Investment, Identifier [Axis]: Industrial Air Flow Dynamics, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 5.00%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Industrial Air Flow Dynamics, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 5.00%  
Fair Value [4],[10],[13] $ 79  
Percent of net assets [6],[10],[13] 0.01%  
Investment, Identifier [Axis]: Infobase Acquisition, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9] 5.50% [3],[14]
Fair Value $ 4,232 [4],[8] $ 4,287 [5],[14]
Percent of net assets 0.48% [6],[8] 0.44% [7],[14]
Investment, Identifier [Axis]: Infucare Rx Inc    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14]   4.25%
Fair Value [1],[5],[14]   $ 5,788
Percent of net assets [1],[7],[14]   0.60%
Investment, Identifier [Axis]: Integrated Power Services Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 4.50% [2],[3],[12]
Fair Value $ 0 [4],[10],[11] $ 0 [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Integrated Power Services Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.50% [2],[3]
Fair Value $ 4,812 [4],[8],[10] $ 3,551 [2],[5]
Percent of net assets 0.55% [6],[8],[10] 0.37% [2],[7]
Investment, Identifier [Axis]: Ivex Holdco Inc. (Specialized Packaging Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[22] 5.50% [3],[21]
Fair Value $ 10,070 [4],[8],[10],[22] $ 4,333 [5],[21]
Percent of net assets 1.14% [6],[8],[10],[22] 0.45% [7],[21]
Investment, Identifier [Axis]: Ivex Holdco Inc. (Specialized Packaging Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[22] 6.25% [2],[3],[14],[21]
Fair Value $ 4,329 [4],[10],[22] $ 6,776 [2],[5],[14],[21]
Percent of net assets 0.49% [6],[10],[22] 0.70% [2],[7],[14],[21]
Investment, Identifier [Axis]: Ivex Holdco Inc. (Specialized Packaging Group) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[22] 5.75% [2],[3]
Fair Value $ 6,769 [4],[8],[10],[22] $ 3,267 [2],[5]
Percent of net assets 0.77% [6],[8],[10],[22] 0.34% [2],[7]
Investment, Identifier [Axis]: Ivex Holdco Inc. (Specialized Packaging Group) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[22] 5.50% [1],[3],[14]
Fair Value $ 3,264 [4],[10],[22] $ 10,080 [1],[5],[14]
Percent of net assets 0.37% [6],[10],[22] 1.04% [1],[7],[14]
Investment, Identifier [Axis]: JEGS Automotive 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 7.00% [9],[10] 6.00% [2],[3]
Fair Value $ 1,330 [4],[10] $ 203 [2],[5]
Percent of net assets 0.15% [6],[10] 0.02% [2],[7]
Investment, Identifier [Axis]: JEGS Automotive 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 7.00% [9],[10] 6.00% [3],[14]
Fair Value $ 221 [4],[10] $ 1,222 [5],[14]
Percent of net assets 0.03% [6],[10] 0.13% [7],[14]
Investment, Identifier [Axis]: JKC Buyer, Inc. (J. Knipper and Company Inc) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 5.00%  
Fair Value [4],[8],[10] $ 2,098  
Percent of net assets [6],[8],[10] 0.24%  
Investment, Identifier [Axis]: JKC Buyer, Inc. (J. Knipper and Company Inc) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 5.00%  
Fair Value [4],[8] $ 6,062  
Percent of net assets [6],[8] 0.69%  
Investment, Identifier [Axis]: Java Buyer, Inc. (Sciens Building Solutions, LLC) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.75% [3],[14],[15]
Fair Value $ 4,833 [4],[10],[13] $ 9,220 [5],[14],[15]
Percent of net assets 0.55% [6],[10],[13] 0.95% [7],[14],[15]
Investment, Identifier [Axis]: Java Buyer, Inc. (Sciens Building Solutions, LLC) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 5.75% [2],[3],[14],[15]
Fair Value $ 9,150 [4],[8],[10],[13] $ 4,870 [2],[5],[14],[15]
Percent of net assets 1.04% [6],[8],[10],[13] 0.50% [2],[7],[14],[15]
Investment, Identifier [Axis]: Jetson Buyer, Inc. (E-Technologies Group, Inc.)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9] 5.50% [1],[3],[14]
Fair Value $ 7,033 [4],[8] $ 7,138 [1],[5],[14]
Percent of net assets 0.80% [6],[8] 0.74% [1],[7],[14]
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Enagage PEO) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10],[13] 5.00%  
Fair Value [4],[8],[10],[13] $ 9,421  
Percent of net assets [6],[8],[10],[13] 1.07%  
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Enagage PEO) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 5.00%  
Fair Value [4],[10],[11],[13] $ 5,666  
Percent of net assets [6],[10],[11],[13] 0.64%  
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Enagage PEO) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 5.00%  
Fair Value [4],[10],[11],[13] $ (9)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Engage PEO) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[15]   5.00%
Fair Value [5],[14],[15]   $ 9,483
Percent of net assets [7],[14],[15]   0.98%
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Engage PEO) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   5.00%
Fair Value [2],[5],[12],[15]   $ 4,061
Percent of net assets [2],[7],[12],[15]   0.42%
Investment, Identifier [Axis]: KENG Acquisition, Inc. (Engage PEO) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   5.00%
Fair Value [2],[5],[12],[15]   $ (10)
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: KKEMP Blocked Co-Invest, LP    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 1,000  
Percent of net assets [6],[10],[23] 0.11%  
Investment, Identifier [Axis]: KL Bronco Acquisition, Inc. (Elevation Labs) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.25% [3],[14]
Fair Value $ 6,638 [4],[8] $ 6,721 [5],[14]
Percent of net assets 0.76% [6],[8] 0.69% [7],[14]
Investment, Identifier [Axis]: KL Bronco Acquisition, Inc. (Elevation Labs) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10],[11] 5.25% [2],[3],[12]
Fair Value $ 2,456 [4],[10],[11] $ 931 [2],[5],[12]
Percent of net assets 0.28% [6],[10],[11] 0.10% [2],[7],[12]
Investment, Identifier [Axis]: KRIV Acquisition, Inc. (Riveron)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 5.00%  
Fair Value [4],[8],[10] $ 12,085  
Percent of net assets [6],[8],[10] 1.37%  
Investment, Identifier [Axis]: KRIV Acquisition, Inc. (Riveron) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   5.75%
Fair Value [1],[2],[5],[14]   $ 10,556
Percent of net assets [1],[2],[7],[14]   1.09%
Investment, Identifier [Axis]: KRIV Acquisition, Inc. (Riveron) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3]   5.75%
Fair Value [2],[5]   $ 1,583
Percent of net assets [2],[7]   0.16%
Investment, Identifier [Axis]: KRIV Co-Invest Holdings, L.P. (Riveron)    
Schedule of Investments [Line Items]    
Fair Value $ 954 [4],[10],[23],[26] $ 697 [2],[5],[17]
Percent of net assets 0.11% [6],[10],[23],[26] 0.07% [2],[7],[17]
Investment, Identifier [Axis]: Kenco PPC Buyer LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.25% [1],[2],[3],[14]
Fair Value $ 21,613 [4],[8],[10] $ 22,073 [1],[2],[5],[14]
Percent of net assets 2.45% [6],[8],[10] 2.28% [1],[2],[7],[14]
Investment, Identifier [Axis]: Kenco PPC Buyer LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 4.25% [2],[3],[12]
Fair Value $ 3,573 [4],[10] $ 33 [2],[5],[12]
Percent of net assets 0.41% [6],[10] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Kenco PPC Buyer LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 4.25% [2],[3],[12]
Fair Value $ (19) [4],[10],[11] $ 36 [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: LH Equity Investors, L.P.    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 1,500  
Percent of net assets [6],[10],[23],[26] 0.17%  
Investment, Identifier [Axis]: LHS Acquistion, LLC (Summit Hill Foods)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.75%
Fair Value [5],[14]   $ 8,024
Percent of net assets [7],[14]   0.83%
Investment, Identifier [Axis]: LRN Corporation (Lion Merger Sub, Inc.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.50% [9],[10],[13] 6.50% [3],[15]
Fair Value $ 7,188 [4],[10],[13] $ 7,193 [5],[15]
Percent of net assets 0.82% [6],[10],[13] 0.74% [7],[15]
Investment, Identifier [Axis]: LRN Corporation (Lion Merger Sub, Inc.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.50% [9],[10],[13] 6.50% [2],[3],[15]
Fair Value $ 7,166 [4],[10],[13] $ 7,170 [2],[5],[15]
Percent of net assets 0.81% [6],[10],[13] 0.74% [2],[7],[15]
Investment, Identifier [Axis]: LSCS Holdings, Inc. (Dohmen)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14],[20]   4.50%
Fair Value [1],[2],[5],[14],[20]   $ 9,991
Percent of net assets [1],[2],[7],[14],[20]   1.03%
Investment, Identifier [Axis]: Lapmaster Co-Investment, LLC (Precision Surfacing Solutions)    
Schedule of Investments [Line Items]    
Fair Value $ 7,476 [4],[10],[23] $ 6,214 [2],[5],[17],[21]
Percent of net assets 0.85% [6],[10],[23] 0.64% [2],[7],[17],[21]
Investment, Identifier [Axis]: Lavie Group, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 5.00%  
Fair Value [4],[10],[11],[13] $ (7)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Lavie Group, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 5.00%  
Fair Value [4],[10],[13] $ 2,723  
Percent of net assets [6],[10],[13] 0.31%  
Investment, Identifier [Axis]: Legacy Parent Holdings, LLC (Legacy Service Partners)    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 647
Percent of net assets [2],[7],[17]   0.07%
Investment, Identifier [Axis]: Legacy Parent Holdings, LLC (Legacy Service Partners) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 5.25%  
Fair Value [4],[8],[10] $ 9,945  
Percent of net assets [6],[8],[10] 1.13%  
Investment, Identifier [Axis]: Legacy Parent Holdings, LLC (Legacy Service Partners) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 5.25%  
Fair Value [4],[8] $ 4,635  
Percent of net assets [6],[8] 0.52%  
Investment, Identifier [Axis]: Legacy Parent Holdings, LLC (Legacy Service Partners) 3    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 16  
Percent of net assets [6],[10],[23] 0.00%  
Investment, Identifier [Axis]: Legacy Parent Holdings, LLC (Legacy Service Partners) 4    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 643  
Percent of net assets [6],[10],[23] 0.07%  
Investment, Identifier [Axis]: Legacy Service Partners, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 5.25%  
Fair Value [4],[10] $ 2,901  
Percent of net assets [6],[10] 0.33%  
Investment, Identifier [Axis]: Legacy Service Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3]   5.25%
Fair Value [5]   $ 2,921
Percent of net assets [7]   0.30%
Investment, Identifier [Axis]: Legacy Service Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   5.25%
Fair Value [1],[2],[5],[14]   $ 10,015
Percent of net assets [1],[2],[7],[14]   1.03%
Investment, Identifier [Axis]: Legacy Service Partners, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.25%
Fair Value [5],[14]   $ 4,668
Percent of net assets [7],[14]   0.48%
Investment, Identifier [Axis]: Liberty Buyer, Inc. (Liberty Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10],[13] 5.75% [3],[14],[15]
Fair Value $ 3,691 [4],[8],[10],[13] $ 3,842 [5],[14],[15]
Percent of net assets 0.42% [6],[8],[10],[13] 0.40% [7],[14],[15]
Investment, Identifier [Axis]: Liberty Buyer, Inc. (Liberty Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10],[13] 5.75% [2],[3],[12],[15]
Fair Value $ 278 [4],[10],[13] $ 283 [2],[5],[12],[15]
Percent of net assets 0.03% [6],[10],[13] 0.03% [2],[7],[12],[15]
Investment, Identifier [Axis]: Low Voltage Holdings Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ (3)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Low Voltage Holdings Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ (1)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Low Voltage Holdings Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[13] 4.75%  
Fair Value [4],[8],[13] $ 2,355  
Percent of net assets [6],[8],[13] 0.26%  
Investment, Identifier [Axis]: MBS Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 6.25% [3],[14],[15]
Fair Value $ 1,040 [4],[10],[13] $ 1,828 [5],[14],[15]
Percent of net assets 0.12% [6],[10],[13] 0.19% [7],[14],[15]
Investment, Identifier [Axis]: MBS Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[13] 5.75% [1],[3],[14],[15]
Fair Value $ 1,796 [4],[8],[13] $ 9,950 [1],[5],[14],[15]
Percent of net assets 0.20% [6],[8],[13] 1.03% [1],[7],[14],[15]
Investment, Identifier [Axis]: MBS Holdings, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 6.50% [3],[14],[15]
Fair Value $ 9,873 [4],[8],[10],[13] $ 1,314 [5],[14],[15]
Percent of net assets 1.12% [6],[8],[10],[13] 0.14% [7],[14],[15]
Investment, Identifier [Axis]: MBS Holdings, Inc. 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[13] 5.00%  
Fair Value [4],[8],[13] $ 1,291  
Percent of net assets [6],[8],[13] 0.15%  
Investment, Identifier [Axis]: MDC Group Holdings, LP (Mosaic Dental)    
Schedule of Investments [Line Items]    
Fair Value $ 46 [4],[10],[23] $ 191 [2],[5],[17],[21]
Percent of net assets 0.01% [6],[10],[23] 0.02% [2],[7],[17],[21]
Investment, Identifier [Axis]: MDC Intermediate Holdings II, LLC (Mosaic Dental) 1    
Schedule of Investments [Line Items]    
Fair Value $ 1,792 [4],[10] $ 1,719 [2],[5]
Percent of net assets 0.21% [6],[10] 0.18% [2],[7]
Investment, Identifier [Axis]: MDC Intermediate Holdings II, LLC (Mosaic Dental) 2    
Schedule of Investments [Line Items]    
Fair Value $ 478 [4],[10] $ 458 [2],[5]
Percent of net assets 0.05% [6],[10] 0.05% [2],[7]
Investment, Identifier [Axis]: MEI Buyer LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [1],[2],[3],[14]
Fair Value $ 540 [4],[10],[11] $ 11,319 [1],[2],[5],[14]
Percent of net assets 0.06% [6],[10],[11] 1.17% [1],[2],[7],[14]
Investment, Identifier [Axis]: MEI Buyer LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [2],[3]
Fair Value $ 11,321 [4],[8],[10] $ 1,810 [2],[5]
Percent of net assets 1.28% [6],[8],[10] 0.19% [2],[7]
Investment, Identifier [Axis]: MEI Buyer LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 5.00%  
Fair Value [4],[10] $ 1,810  
Percent of net assets [6],[10] 0.21%  
Investment, Identifier [Axis]: MPG Parent Holdings, LLC (Market Performance Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[3],[14]
Fair Value $ 12,463 [4],[8],[10] $ 12,650 [1],[5],[14]
Percent of net assets 1.41% [6],[8],[10] 1.31% [1],[7],[14]
Investment, Identifier [Axis]: MPG Parent Holdings, LLC (Market Performance Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10] 5.00% [2],[3]
Fair Value $ 3,060 [4],[10] $ 3,106 [2],[5]
Percent of net assets 0.35% [6],[10] 0.32% [2],[7]
Investment, Identifier [Axis]: MSM Acquisitions, Inc. (Spectrio) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10],[13] 6.00% [2],[3],[14],[15]
Fair Value $ 7,270 [4],[10],[13] $ 7,301 [2],[5],[14],[15]
Percent of net assets 0.83% [6],[10],[13] 0.75% [2],[7],[14],[15]
Investment, Identifier [Axis]: MSM Acquisitions, Inc. (Spectrio) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10],[13] 6.00% [2],[3],[14],[15]
Fair Value $ 2,589 [4],[10],[13] $ 2,594 [2],[5],[14],[15]
Percent of net assets 0.29% [6],[10],[13] 0.27% [2],[7],[14],[15]
Investment, Identifier [Axis]: MSM Acquisitions, Inc. (Spectrio) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10],[13] 6.00% [3],[15]
Fair Value $ 395 [4],[10],[13] $ 396 [5],[15]
Percent of net assets 0.04% [6],[10],[13] 0.04% [7],[15]
Investment, Identifier [Axis]: Matador US Buyer, LLC (Insulation Technology Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10],[22] 5.00% [1],[2],[3],[14],[21]
Fair Value $ 22,102 [4],[8],[10],[22] $ 22,155 [1],[2],[5],[14],[21]
Percent of net assets 2.51% [6],[8],[10],[22] 2.28% [1],[2],[7],[14],[21]
Investment, Identifier [Axis]: Matador US Buyer, LLC (Insulation Technology Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11],[22] 5.00% [2],[3],[12],[21]
Fair Value $ 5,567 [4],[10],[11],[22] $ (53) [2],[5],[12],[21]
Percent of net assets 0.63% [6],[10],[11],[22] (0.01%) [2],[7],[12],[21]
Investment, Identifier [Axis]: Micronics Filtration Holdings, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3]   5.50%
Fair Value [2],[5]   $ 2,413
Percent of net assets [2],[7]   0.25%
Investment, Identifier [Axis]: Midwest Eye Services, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 4.50% [1],[3],[14]
Fair Value $ 8,807 [4],[8] $ 8,923 [1],[5],[14]
Percent of net assets 1.00% [6],[8] 0.92% [1],[7],[14]
Investment, Identifier [Axis]: Mobile Communications America, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 5.25% [2],[3],[14]
Fair Value $ 124 [4],[10],[11] $ 18,466 [2],[5],[14]
Percent of net assets 0.01% [6],[10],[11] 1.90% [2],[7],[14]
Investment, Identifier [Axis]: Mobile Communications America, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 5.25% [2],[3],[12]
Fair Value $ 18,071 [4],[8],[10] $ 1,186 [2],[5],[12]
Percent of net assets 2.05% [6],[8],[10] 0.12% [2],[7],[12]
Investment, Identifier [Axis]: Mobile Communications America, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 4.75%  
Fair Value [4],[10] $ 4,257  
Percent of net assets [6],[10] 0.48%  
Investment, Identifier [Axis]: Momentum Textiles, LLC    
Schedule of Investments [Line Items]    
Fair Value [4],[10] $ 4,997  
Percent of net assets [6],[10] 0.56%  
Investment, Identifier [Axis]: NFM & J, L.P. (The Facilities Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[13] 5.75% [3],[14],[15]
Fair Value $ 4,714 [4],[8],[13] $ 4,806 [5],[14],[15]
Percent of net assets 0.54% [6],[8],[13] 0.50% [7],[14],[15]
Investment, Identifier [Axis]: NFM & J, L.P. (The Facilities Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10],[13] 5.75% [1],[3],[14],[15]
Fair Value $ 8,742 [4],[8],[10],[13] $ 8,920 [1],[5],[14],[15]
Percent of net assets 0.99% [6],[8],[10],[13] 0.92% [1],[7],[14],[15]
Investment, Identifier [Axis]: NFM & J, L.P. (The Facilities Group) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[13] 5.75% [3],[14],[15]
Fair Value $ 4,792 [4],[8],[13] $ 4,885 [5],[14],[15]
Percent of net assets 0.55% [6],[8],[13] 0.50% [7],[14],[15]
Investment, Identifier [Axis]: NFM & J, L.P. (The Facilities Group) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10],[11],[13] 5.75% [2],[3],[12],[15]
Fair Value $ 482 [4],[10],[11],[13] $ 544 [2],[5],[12],[15]
Percent of net assets 0.05% [6],[10],[11],[13] 0.06% [2],[7],[12],[15]
Investment, Identifier [Axis]: NJEye LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   4.75%
Fair Value [5],[14]   $ 5,284
Percent of net assets [7],[14]   0.54%
Investment, Identifier [Axis]: NJEye LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   4.75%
Fair Value [5],[14]   $ 693
Percent of net assets [7],[14]   0.07%
Investment, Identifier [Axis]: NJEye LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3]   4.75%
Fair Value [2],[5]   $ 884
Percent of net assets [2],[7]   0.09%
Investment, Identifier [Axis]: NJEye LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   4.75%
Fair Value [5],[14]   $ 881
Percent of net assets [7],[14]   0.09%
Investment, Identifier [Axis]: NMSEF II Holdings I, L.P.    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 483  
Percent of net assets [6],[10],[23],[26] 0.05%  
Investment, Identifier [Axis]: NP/BF Holdings, L.P.    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 1,000  
Percent of net assets [6],[10],[23] 0.11%  
Investment, Identifier [Axis]: National Renovations LLC (Repipe Specialists) 1    
Schedule of Investments [Line Items]    
Fair Value $ 620 [4],[10] $ 2,200 [2],[5]
Percent of net assets 0.07% [6],[10] 0.23% [2],[7]
Investment, Identifier [Axis]: National Renovations LLC (Repipe Specialists) 2    
Schedule of Investments [Line Items]    
Fair Value $ 2,279 [4],[10] $ 190 [2],[5]
Percent of net assets 0.26% [6],[10] 0.02% [2],[7]
Investment, Identifier [Axis]: National Renovations LLC (Repipe Specialists) 3    
Schedule of Investments [Line Items]    
Fair Value [4],[10] $ 197  
Percent of net assets [6],[10] 0.02%  
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 5.75%  
Fair Value [4],[10],[11],[13] $ (1)  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 5.75%  
Fair Value [4],[10],[13] $ 919  
Percent of net assets [6],[10],[13] 0.10%  
Investment, Identifier [Axis]: New Spartech Holdings LLC    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 1,137  
Percent of net assets [6],[10],[23] 0.13%  
Investment, Identifier [Axis]: New Spartech Holdings LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 7.00%  
Fair Value [4],[10] $ 1,441  
Percent of net assets [6],[10] 0.17%  
Investment, Identifier [Axis]: New Spartech Holdings LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 1.00%  
Fair Value [4],[10],[13] $ 2,387  
Percent of net assets [6],[10],[13] 0.27%  
Investment, Identifier [Axis]: North Haven CS Acquisition, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.25%
Fair Value [5],[14]   $ 5,774
Percent of net assets [7],[14]   0.60%
Investment, Identifier [Axis]: North Haven CS Acquisition, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   5.25%
Fair Value [1],[2],[5],[14]   $ 22,409
Percent of net assets [1],[2],[7],[14]   2.31%
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC (Fairway Lawns) 1    
Schedule of Investments [Line Items]    
Fair Value $ 878 [4],[10],[11] $ 2,869 [2],[5]
Percent of net assets 0.10% [6],[10],[11] 0.30% [2],[7]
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC (Fairway Lawns) 2    
Schedule of Investments [Line Items]    
Fair Value $ 4,390 [4],[10] $ 6,592 [2],[5]
Percent of net assets 0.50% [6],[10] 0.68% [2],[7]
Investment, Identifier [Axis]: North Haven Fairway Buyer, LLC (Fairway Lawns) 3    
Schedule of Investments [Line Items]    
Fair Value $ 6,332 [4],[10] $ 4,554 [2],[5],[12]
Percent of net assets 0.72% [6],[10] 0.47% [2],[7],[12]
Investment, Identifier [Axis]: North Haven Spartan US Holdco LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.75% [3],[14]
Fair Value $ 2,457 [4],[8] $ 2,477 [5],[14]
Percent of net assets 0.28% [6],[8] 0.26% [7],[14]
Investment, Identifier [Axis]: North Haven Spartan US Holdco LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.75% [3],[14]
Fair Value $ 213 [4],[8] $ 215 [5],[14]
Percent of net assets 0.02% [6],[8] 0.02% [7],[14]
Investment, Identifier [Axis]: North Haven Spartan US Holdco LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10],[11] 5.75% [1],[3],[12]
Fair Value $ 1,622 [4],[10],[11] $ 0 [1],[5],[12]
Percent of net assets 0.18% [6],[10],[11] 0.00% [1],[7],[12]
Investment, Identifier [Axis]: North Haven Terrapin IntermediateCo, LLC (Apex Companies)    
Schedule of Investments [Line Items]    
Fair Value $ 179 [4],[10],[23] $ 127 [2],[5],[17],[21]
Percent of net assets 0.02% [6],[10],[23] 0.01% [2],[7],[17],[21]
Investment, Identifier [Axis]: Nutrition 101 Buyer, LLC (101 Inc)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.25% [3],[14]
Fair Value $ 6,261 [4],[8] $ 6,109 [5],[14]
Percent of net assets 0.71% [6],[8] 0.63% [7],[14]
Investment, Identifier [Axis]: OCM System One Buyer CTB, LLC (System One)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14]   3.75%
Fair Value [2],[5],[14]   $ 3,204
Percent of net assets [2],[7],[14]   0.33%
Investment, Identifier [Axis]: OEP Glass Purchaser, LLC (PGW Auto Glass) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[3],[14]
Fair Value $ 12,528 [4],[8],[10] $ 12,484 [1],[5],[14]
Percent of net assets 1.42% [6],[8],[10] 1.29% [1],[7],[14]
Investment, Identifier [Axis]: OEP Glass Purchaser, LLC (PGW Auto Glass) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10] 5.00% [2],[3]
Fair Value $ 2,400 [4],[10] $ 2,410 [2],[5]
Percent of net assets 0.27% [6],[10] 0.25% [2],[7]
Investment, Identifier [Axis]: OSG Topco Holdings, LLC (Output Services Group, Inc.)    
Schedule of Investments [Line Items]    
Fair Value $ 598 [4],[10],[23] $ 768 [2],[5],[17],[21]
Percent of net assets 0.07% [6],[10],[23] 0.08% [2],[7],[17],[21]
Investment, Identifier [Axis]: OSP Gannett Aggregator, LP (Gannett Fleming)    
Schedule of Investments [Line Items]    
Fair Value $ 1,271 [4],[10],[22],[23],[24] $ 1,180 [2],[5],[17],[25]
Percent of net assets 0.14% [6],[10],[22],[23],[24] 0.12% [2],[7],[17],[25]
Investment, Identifier [Axis]: Oceansound Partners Co-Invest II, LP (Gannett Fleming)    
Schedule of Investments [Line Items]    
Fair Value $ 1,808 [4],[10],[23] $ 1,678 [2],[5],[17]
Percent of net assets 0.21% [6],[10],[23] 0.17% [2],[7],[17]
Investment, Identifier [Axis]: Oliver Investors, LP (Oliver Packaging)    
Schedule of Investments [Line Items]    
Fair Value [2],[5],[17]   $ 673
Percent of net assets [2],[7],[17]   0.07%
Investment, Identifier [Axis]: Oliver Investors, LP (Oliver Packaging) 1    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 15  
Percent of net assets [6],[10],[23] 0.00%  
Investment, Identifier [Axis]: Oliver Investors, LP (Oliver Packaging) 2    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 306  
Percent of net assets [6],[10],[23] 0.03%  
Investment, Identifier [Axis]: Oliver Packaging, LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ 2,469 [4],[10] $ 2,366 [2],[5]
Percent of net assets 0.28% [6],[10] 0.24% [2],[7]
Investment, Identifier [Axis]: Oliver Packaging, LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 482 [4],[10] $ 460 [2],[5]
Percent of net assets 0.05% [6],[10] 0.05% [2],[7]
Investment, Identifier [Axis]: Olympic Buyer, Inc. (Ascensus)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.35% [8],[9],[10],[13] 4.35% [1],[3],[14],[15]
Fair Value $ 8,387 [4],[8],[10],[13] $ 8,132 [1],[5],[14],[15]
Percent of net assets 0.95% [6],[8],[10],[13] 0.84% [1],[7],[14],[15]
Investment, Identifier [Axis]: Olympus US Bidco LLC (Phaidon International)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10],[22] 5.50% [3],[14],[21]
Fair Value $ 12,876 [4],[8],[10],[22] $ 13,025 [5],[14],[21]
Percent of net assets 1.46% [6],[8],[10],[22] 1.34% [7],[14],[21]
Investment, Identifier [Axis]: One Month SOFR    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.13% 4.33%
Investment, Identifier [Axis]: One World Fitness PFF, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.25%
Fair Value [5],[14]   $ 3,781
Percent of net assets [7],[14]   0.39%
Investment, Identifier [Axis]: Online Labels Group, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10] 5.25% [1],[3]
Fair Value $ 3,270 [4],[10] $ 3,295 [1],[5]
Percent of net assets 0.37% [6],[10] 0.34% [1],[7]
Investment, Identifier [Axis]: Online Labels Group, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.25% [2],[3],[12]
Fair Value $ 201 [4],[10],[11] $ 0 [2],[5],[12]
Percent of net assets 0.02% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Online Labels Group, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.25% [2],[3],[12]
Fair Value $ 0 [4],[10],[11] $ 0 [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Orion Group FM Holdings, LLC (Leo Facilities) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.50% [2],[3],[14]
Fair Value $ 8,400 [4],[8] $ 8,359 [2],[5],[14]
Percent of net assets 0.95% [6],[8] 0.86% [2],[7],[14]
Investment, Identifier [Axis]: Orion Group FM Holdings, LLC (Leo Facilities) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 4,698 [4],[10],[11] $ 4,654 [2],[5],[12]
Percent of net assets 0.53% [6],[10],[11] 0.48% [2],[7],[12]
Investment, Identifier [Axis]: Orion Group FM Holdings, LLC (Leo Facilities) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.50% [3],[14]
Fair Value $ 1,577 [4],[8] $ 1,569 [5],[14]
Percent of net assets 0.18% [6],[8] 0.16% [7],[14]
Investment, Identifier [Axis]: Orion Group FM Holdings, LLC (Leo Facilities) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 0 [4],[10],[11] $ (167) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] (0.02%) [2],[7],[12]
Investment, Identifier [Axis]: Output Services Group, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 8.00% [9],[10] 8.00% [2],[3],[21]
Fair Value $ 155 [4],[10] $ 155 [2],[5],[21]
Percent of net assets 0.02% [6],[10] 0.02% [2],[7],[21]
Investment, Identifier [Axis]: Output Services Group, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [9],[10] 6.25% [2],[3]
Fair Value $ 837 [4],[10] $ 837 [2],[5]
Percent of net assets 0.09% [6],[10] 0.09% [2],[7]
Investment, Identifier [Axis]: Ovation Holdings, Inc 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11] 5.00% [1],[3],[14]
Fair Value $ 6,533 [4],[10],[11] $ 7,946 [1],[5],[14]
Percent of net assets 0.74% [6],[10],[11] 0.82% [1],[7],[14]
Investment, Identifier [Axis]: Ovation Holdings, Inc 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [2],[3]
Fair Value $ 940 [4],[8] $ 1,880 [2],[5]
Percent of net assets 0.11% [6],[8] 0.19% [2],[7]
Investment, Identifier [Axis]: Ovation Holdings, Inc 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [2],[3],[12]
Fair Value $ 7,886 [4],[8] $ (8) [2],[5],[12]
Percent of net assets 0.89% [6],[8] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Ovation Holdings, Inc 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [2],[3]
Fair Value $ 1,866 [4],[8] $ 947 [2],[5]
Percent of net assets 0.21% [6],[8] 0.10% [2],[7]
Investment, Identifier [Axis]: PAG Holding Corp. (Precision Aviation Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 5.25% [1],[3],[14]
Fair Value $ 14,651 [4],[8],[10] $ 14,836 [1],[5],[14]
Percent of net assets 1.66% [6],[8],[10] 1.53% [1],[7],[14]
Investment, Identifier [Axis]: PAG Holding Corp. (Precision Aviation Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 5.25% [2],[3]
Fair Value $ 4,857 [4],[10] $ 4,918 [2],[5]
Percent of net assets 0.55% [6],[10] 0.51% [2],[7]
Investment, Identifier [Axis]: PLZ Corp (PLZ Aeroscience)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 7.50% [9],[10] 7.50% [2],[3]
Fair Value $ 12,056 [4],[10] $ 12,272 [2],[5]
Percent of net assets 1.37% [6],[10] 1.26% [2],[7]
Investment, Identifier [Axis]: PN Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ (5)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: PN Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.50%  
Fair Value [4],[8] $ 3,872  
Percent of net assets [6],[8] 0.44%  
Investment, Identifier [Axis]: PN Topco L.P.    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23] $ 86  
Percent of net assets [6],[10],[23] 0.01%  
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14],[15]   3.25%
Fair Value [1],[2],[5],[14],[15]   $ 12,352
Percent of net assets [1],[2],[7],[14],[15]   1.26%
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   3.25%
Fair Value [2],[5],[12],[15]   $ 7
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: Palmetto Acquisitionco, Inc. (Tech24) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9],[10] 5.75% [3],[14]
Fair Value $ 12,598 [4],[8],[10] $ 12,986 [5],[14]
Percent of net assets 1.43% [6],[8],[10] 1.33% [7],[14]
Investment, Identifier [Axis]: Palmetto Acquisitionco, Inc. (Tech24) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [9],[10] 5.75% [2],[3],[12]
Fair Value $ 3,549 [4],[10] $ 3,035 [2],[5],[12]
Percent of net assets 0.40% [6],[10] 0.31% [2],[7],[12]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [2],[3],[15]
Fair Value $ 6,941 [4],[10],[13] $ 7,091 [2],[5],[15]
Percent of net assets 0.79% [6],[10],[13] 0.73% [2],[7],[15]
Investment, Identifier [Axis]: Pegasus Aggregator Holdings LP (S&S Truck Parts)    
Schedule of Investments [Line Items]    
Fair Value $ 645 [4],[10],[23] $ 644 [2],[5],[17]
Percent of net assets 0.07% [6],[10],[23] 0.07% [2],[7],[17]
Investment, Identifier [Axis]: Perennial Services Group, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9] 5.50% [3],[14]
Fair Value $ 6,615 [4],[8] $ 6,732 [5],[14]
Percent of net assets 0.75% [6],[8] 0.69% [7],[14]
Investment, Identifier [Axis]: Perennial Services Group, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3],[14]
Fair Value $ 5,920 [4],[8],[10] $ 6,024 [2],[5],[14]
Percent of net assets 0.67% [6],[8],[10] 0.62% [2],[7],[14]
Investment, Identifier [Axis]: Perennial Services Investors LLC (Perennial Services Group)    
Schedule of Investments [Line Items]    
Fair Value $ 956 [4],[10],[23] $ 894 [2],[5],[17],[21]
Percent of net assets 0.11% [6],[10],[23] 0.09% [2],[7],[17],[21]
Investment, Identifier [Axis]: Performance Packaging Buyer, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.50%  
Fair Value [4],[8] $ 6,941  
Percent of net assets [6],[8] 0.79%  
Investment, Identifier [Axis]: Phoenix Topco Holdings LP (S&S Truck Parts) 1    
Schedule of Investments [Line Items]    
Fair Value $ 1,177 [4],[10],[23] $ 1,052 [2],[5],[17],[21]
Percent of net assets 0.13% [6],[10],[23] 0.11% [2],[7],[17],[21]
Investment, Identifier [Axis]: Phoenix Topco Holdings LP (S&S Truck Parts) 2    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 0 [2],[5],[17],[21]
Percent of net assets 0.00% [6],[10],[23] 0.00% [2],[7],[17],[21]
Investment, Identifier [Axis]: Pinnacle Supply Partners, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [9],[10],[11] 6.25% [3],[14]
Fair Value $ (24) [4],[10],[11] $ 6,168 [5],[14]
Percent of net assets 0.00% [6],[10],[11] 0.64% [7],[14]
Investment, Identifier [Axis]: Pinnacle Supply Partners, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [8],[9] 6.25% [2],[3],[12]
Fair Value $ 6,130 [4],[8] $ 1,325 [2],[5],[12]
Percent of net assets 0.70% [6],[8] 0.14% [2],[7],[12]
Investment, Identifier [Axis]: Pinnacle Supply Partners, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 6.25%  
Fair Value [4],[10] $ 1,946  
Percent of net assets [6],[10] 0.22%  
Investment, Identifier [Axis]: Promptcare Infusion Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10],[11],[13] 6.00% [2],[3],[12],[15]
Fair Value $ 1,415 [4],[10],[11],[13] $ 1,430 [2],[5],[12],[15]
Percent of net assets 0.16% [6],[10],[11],[13] 0.15% [2],[7],[12],[15]
Investment, Identifier [Axis]: Promptcare Infusion Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[13] 6.00% [3],[14],[15]
Fair Value $ 8,043 [4],[8],[13] $ 8,120 [5],[14],[15]
Percent of net assets 0.91% [6],[8],[13] 0.84% [7],[14],[15]
Investment, Identifier [Axis]: Promptcare Infusion Buyer, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [8],[9],[13] 6.00% [3],[14],[15]
Fair Value $ 1,253 [4],[8],[13] $ 1,265 [5],[14],[15]
Percent of net assets 0.14% [6],[8],[13] 0.13% [7],[14],[15]
Investment, Identifier [Axis]: Prosci, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.25% [8],[9] 4.50% [3],[14]
Fair Value $ 4,733 [4],[8] $ 4,733 [5],[14]
Percent of net assets 0.54% [6],[8] 0.49% [7],[14]
Investment, Identifier [Axis]: QHR Health, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [1],[3],[14],[21]
Fair Value $ 7,524 [4],[8],[10] $ 7,675 [1],[5],[14],[21]
Percent of net assets 0.86% [6],[8],[10] 0.79% [1],[7],[14],[21]
Investment, Identifier [Axis]: QHR Health, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [3],[14],[21]
Fair Value $ 3,183 [4],[8],[10] $ 3,246 [5],[14],[21]
Percent of net assets 0.36% [6],[8],[10] 0.33% [7],[14],[21]
Investment, Identifier [Axis]: QHR Health, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [1],[3],[14]
Fair Value $ 3,183 [4],[8],[10] $ 3,246 [1],[5],[14]
Percent of net assets 0.36% [6],[8],[10] 0.33% [1],[7],[14]
Investment, Identifier [Axis]: Quartz Holding Company (Quickbase)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   3.50%
Fair Value [1],[2],[5],[14]   $ 6,803
Percent of net assets [1],[2],[7],[14]   0.70%
Investment, Identifier [Axis]: R1 Holdings, LLC (RoadOne)    
Schedule of Investments [Line Items]    
Fair Value $ 5,003 [4],[10] $ 4,815 [2],[5]
Percent of net assets 0.57% [6],[10] 0.50% [2],[7]
Investment, Identifier [Axis]: RA Parent Holdings LP (S&S Truck Parts) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 5.00% [3],[14]
Fair Value $ 1,127 [4],[8] $ 7,830 [5],[14]
Percent of net assets 0.13% [6],[8] 0.81% [7],[14]
Investment, Identifier [Axis]: RA Parent Holdings LP (S&S Truck Parts) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 5.00% [3],[14]
Fair Value $ 19,687 [4],[8],[10] $ 96 [5],[14]
Percent of net assets 2.23% [6],[8],[10] 0.01% [7],[14]
Investment, Identifier [Axis]: RA Parent Holdings LP (S&S Truck Parts) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 5.00% [3],[14]
Fair Value $ 1,678 [4],[8] $ 1,685 [5],[14]
Percent of net assets 0.19% [6],[8] 0.17% [7],[14]
Investment, Identifier [Axis]: RA Parent Holdings LP (S&S Truck Parts) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 5.00% [1],[2],[3],[14]
Fair Value $ 96 [4],[8] $ 19,767 [1],[2],[5],[14]
Percent of net assets 0.01% [6],[8] 2.04% [1],[2],[7],[14]
Investment, Identifier [Axis]: RA Parent Holdings LP (S&S Truck Parts) 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.75%  
Fair Value [4],[8] $ 6,670  
Percent of net assets [6],[8] 0.76%  
Investment, Identifier [Axis]: RCP Nats Co-Investment Fund LP    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 1,194  
Percent of net assets [6],[10],[23],[26] 0.14%  
Investment, Identifier [Axis]: REP Coinvest III AAD, L.P. (Anne Arundel)    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 0 [2],[5],[17]
Percent of net assets 0.00% [6],[10],[23] 0.00% [2],[7],[17]
Investment, Identifier [Axis]: REP HS Holdings, LLC (HemaSource)    
Schedule of Investments [Line Items]    
Fair Value $ 783 [4],[10],[23] $ 795 [2],[5],[17]
Percent of net assets 0.09% [6],[10],[23] 0.08% [2],[7],[17]
Investment, Identifier [Axis]: REP RO Coinvest IV-A, LP (RoadOne)    
Schedule of Investments [Line Items]    
Fair Value $ 680 [4],[10],[23] $ 809 [2],[5],[17]
Percent of net assets 0.08% [6],[10],[23] 0.07% [2],[7],[17]
Investment, Identifier [Axis]: RMS Energy Borrower LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ (5)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: RMS Energy Borrower LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 4.50%  
Fair Value [4],[8],[10] $ 6,739  
Percent of net assets [6],[8],[10] 0.76%  
Investment, Identifier [Axis]: RPI Investments LP (Rose Paving)    
Schedule of Investments [Line Items]    
Fair Value $ 87 [4],[10],[23] $ 100 [2],[5],[17]
Percent of net assets 0.01% [6],[10],[23] 0.01% [2],[7],[17]
Investment, Identifier [Axis]: RailPros Parent, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.50%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: RailPros Parent, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.50%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: RailPros Parent, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 4.50%  
Fair Value [4],[10],[13] $ 68  
Percent of net assets [6],[10],[13] 0.01%  
Investment, Identifier [Axis]: Randys Holdings, Inc. (Randy's Worldwide Automotive) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.00% [1],[2],[3],[14],[15]
Fair Value $ 2,586 [4],[10],[11],[13] $ 10,908 [1],[2],[5],[14],[15]
Percent of net assets 0.29% [6],[10],[11],[13] 1.12% [1],[2],[7],[14],[15]
Investment, Identifier [Axis]: Randys Holdings, Inc. (Randy's Worldwide Automotive) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 5.00% [2],[3],[12],[15]
Fair Value $ 10,768 [4],[8],[10],[13] $ 1,068 [2],[5],[12],[15]
Percent of net assets 1.22% [6],[8],[10],[13] 0.11% [2],[7],[12],[15]
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ 1,263  
Percent of net assets [6],[10],[11] 0.15%  
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ (2)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 4.50%  
Fair Value [4],[8] $ 7,391  
Percent of net assets [6],[8] 0.84%  
Investment, Identifier [Axis]: Red Griffin TopCo, LLC (Seko Global Logistics LLC) 1    
Schedule of Investments [Line Items]    
Fair Value $ 227 [4],[10],[23] $ 2,820 [2],[5],[17]
Percent of net assets 0.03% [6],[10],[23] 0.29% [2],[7],[17]
Investment, Identifier [Axis]: Red Griffin TopCo, LLC (Seko Global Logistics LLC) 2    
Schedule of Investments [Line Items]    
Fair Value $ 119 [4],[10],[23] $ 1,481 [2],[5],[17]
Percent of net assets 0.01% [6],[10],[23] 0.15% [2],[7],[17]
Investment, Identifier [Axis]: Redwood Services Group, LLC (Evergreen Services Group) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11],[13] 6.25% [2],[3],[14],[15]
Fair Value $ 1,001 [4],[10],[11],[13] $ 11,845 [2],[5],[14],[15]
Percent of net assets 0.11% [6],[10],[11],[13] 1.22% [2],[7],[14],[15]
Investment, Identifier [Axis]: Redwood Services Group, LLC (Evergreen Services Group) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 6.25% [2],[3],[15]
Fair Value $ 14,063 [4],[8],[10],[13] $ 2,834 [2],[5],[15]
Percent of net assets 1.60% [6],[8],[10],[13] 0.29% [2],[7],[15]
Investment, Identifier [Axis]: Redwood Services Group, LLC (Evergreen Services Group) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 5.25%  
Fair Value [4],[10],[13] $ 2,812  
Percent of net assets [6],[10],[13] 0.32%  
Investment, Identifier [Axis]: Refresh Buyer, LLC (Sunny Sky Products) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.50% [2],[3],[14]
Fair Value $ 6,823 [4],[8],[10] $ 6,963 [2],[5],[14]
Percent of net assets 0.77% [6],[8],[10] 0.72% [2],[7],[14]
Investment, Identifier [Axis]: Refresh Buyer, LLC (Sunny Sky Products) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 4.50% [2],[3],[12]
Fair Value $ 1,727 [4],[10] $ (15) [2],[5],[12]
Percent of net assets 0.20% [6],[10] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Renaissance Buyer, LLC (LMI Consulting, LLC)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.50% [1],[2],[3],[14]
Fair Value $ 12,040 [4],[8],[10] $ 12,162 [1],[2],[5],[14]
Percent of net assets 1.37% [6],[8],[10] 1.25% [1],[2],[7],[14]
Investment, Identifier [Axis]: Repipe Aggregator, LLC (Repipe Specialists)    
Schedule of Investments [Line Items]    
Fair Value $ 87 [4],[10],[23] $ 48 [2],[5],[17],[21]
Percent of net assets 0.01% [6],[10],[23] 0.00% [2],[7],[17],[21]
Investment, Identifier [Axis]: Revalize Inc. (f/k/a AQ Holdco Inc.) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 5.75% [1],[3],[14],[15]
Fair Value $ 687 [4],[10],[13] $ 3,934 [1],[5],[14],[15]
Percent of net assets 0.07% [6],[10],[13] 0.41% [1],[7],[14],[15]
Investment, Identifier [Axis]: Revalize Inc. (f/k/a AQ Holdco Inc.) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10],[13] 5.75% [2],[3],[14],[15]
Fair Value $ 996 [4],[8],[10],[13] $ 1,010 [2],[5],[14],[15]
Percent of net assets 0.11% [6],[8],[10],[13] 0.10% [2],[7],[14],[15]
Investment, Identifier [Axis]: Revalize Inc. (f/k/a AQ Holdco Inc.) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 5.75% [2],[3],[15]
Fair Value $ 221 [4],[10],[13] $ 224 [2],[5],[15]
Percent of net assets 0.03% [6],[10],[13] 0.02% [2],[7],[15]
Investment, Identifier [Axis]: Revalize Inc. (f/k/a AQ Holdco Inc.) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 4.75%  
Fair Value [4],[10],[13] $ 3,192  
Percent of net assets [6],[10],[13] 0.36%  
Investment, Identifier [Axis]: Rhino Intermediate Holding Company, LLC (Rhino Tool House) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9] 5.25% [2],[3],[14]
Fair Value $ 9,324 [4],[8] $ 9,456 [2],[5],[14]
Percent of net assets 1.06% [6],[8] 0.97% [2],[7],[14]
Investment, Identifier [Axis]: Rhino Intermediate Holding Company, LLC (Rhino Tool House) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10] 5.25% [2],[3]
Fair Value $ 1,792 [4],[8],[10] $ 1,818 [2],[5]
Percent of net assets 0.20% [6],[8],[10] 0.19% [2],[7]
Investment, Identifier [Axis]: Ridge Trail US Bidco, Inc. (Options IT) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[13] 4.50% [2],[3],[15]
Fair Value $ 674 [4],[10],[13] $ 679 [2],[5],[15]
Percent of net assets 0.08% [6],[10],[13] 0.07% [2],[7],[15]
Investment, Identifier [Axis]: Ridge Trail US Bidco, Inc. (Options IT) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11],[13] 4.50% [2],[3],[12],[15]
Fair Value $ (2) [4],[10],[11],[13] $ (2) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Ridge Trail US Bidco, Inc. (Options IT) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11],[13] 4.50% [2],[3],[12],[15]
Fair Value $ 21 [4],[10],[11],[13] $ 21 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Rose Paving, LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ (2) [4],[10],[11] $ (2) [2],[5],[12]
Percent of net assets 0.00% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Rose Paving, LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 2,901 [4],[10] $ 2,901 [2],[5]
Percent of net assets 0.33% [6],[10] 0.30% [2],[7]
Investment, Identifier [Axis]: Royal Holdco Corporation (RMA Companies) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11] 4.75% [3],[14]
Fair Value $ 691 [4],[10],[11] $ 5,178 [5],[14]
Percent of net assets 0.08% [6],[10],[11] 0.53% [7],[14]
Investment, Identifier [Axis]: Royal Holdco Corporation (RMA Companies) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9],[10] 5.75% [2],[3],[14]
Fair Value $ 16,286 [4],[8],[10] $ 4,582 [2],[5],[14]
Percent of net assets 1.85% [6],[8],[10] 0.47% [2],[7],[14]
Investment, Identifier [Axis]: Royal Holdco Corporation (RMA Companies) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3]   5.75%
Fair Value [2],[5]   $ 3,132
Percent of net assets [2],[7]   0.32%
Investment, Identifier [Axis]: Royal Holdco Corporation (RMA Companies) 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   5.75%
Fair Value [5],[14]   $ 3,087
Percent of net assets [7],[14]   0.32%
Investment, Identifier [Axis]: SCIC Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.75%  
Fair Value [4],[10],[11] $ 59  
Percent of net assets [6],[10],[11] 0.01%  
Investment, Identifier [Axis]: SCIC Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 4.75%  
Fair Value [4],[8],[10] $ 15,019  
Percent of net assets [6],[8],[10] 1.70%  
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 10.00% [9],[10] 8.00% [2],[3]
Fair Value $ 451 [4],[10] $ 427 [2],[5]
Percent of net assets 0.05% [6],[10] 0.04% [2],[7]
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 7.00% [9],[10] 12.00% [2],[3]
Fair Value $ 1,699 [4],[10] $ 1,630 [2],[5]
Percent of net assets 0.19% [6],[10] 0.17% [2],[7]
Investment, Identifier [Axis]: SI Solutions, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 4.75% [3],[14]
Fair Value $ 11,740 [4],[8] $ 11,888 [5],[14]
Percent of net assets 1.33% [6],[8] 1.22% [7],[14]
Investment, Identifier [Axis]: SI Solutions, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ 1,097 [4],[10],[11] $ 7 [2],[5],[12]
Percent of net assets 0.12% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: SM Wellness Holdings, Inc. (Solis Mammography)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3],[14]   4.50%
Fair Value [1],[2],[5],[14]   $ 12,920
Percent of net assets [1],[2],[7],[14]   1.32%
Investment, Identifier [Axis]: STS Holding, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 4.75% [3],[14]
Fair Value $ 3,479 [4],[8] $ 3,829 [5],[14]
Percent of net assets 0.39% [6],[8] 0.39% [7],[14]
Investment, Identifier [Axis]: Safety Infrastructure Services Intermediate LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[2],[3]   4.75%
Fair Value [1],[2],[5]   $ 7,018
Percent of net assets [1],[2],[7]   0.72%
Investment, Identifier [Axis]: Safety Infrastructure Services Intermediate LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 5.00%  
Fair Value [4],[10],[11] $ 975  
Percent of net assets [6],[10],[11] 0.11%  
Investment, Identifier [Axis]: Safety Infrastructure Services Intermediate LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 5.00%  
Fair Value [4],[8] $ 6,914  
Percent of net assets [6],[8] 0.78%  
Investment, Identifier [Axis]: Sagebrush Buyer, LLC (Province)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[2],[3]
Fair Value $ 4,434 [4],[8],[10] $ 4,748 [1],[2],[5]
Percent of net assets 0.50% [6],[8],[10] 0.49% [1],[2],[7]
Investment, Identifier [Axis]: Sandlot Buyer, LLC (Prime Time Healthcare) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [8],[9],[10] 6.25% [2],[3],[14]
Fair Value $ 7,710 [4],[8],[10] $ 7,746 [2],[5],[14]
Percent of net assets 0.88% [6],[8],[10] 0.80% [2],[7],[14]
Investment, Identifier [Axis]: Sandlot Buyer, LLC (Prime Time Healthcare) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.25% [8],[9],[10] 6.25% [1],[2],[3],[14]
Fair Value $ 9,080 [4],[8],[10] $ 9,502 [1],[2],[5],[14]
Percent of net assets 1.03% [6],[8],[10] 0.98% [1],[2],[7],[14]
Investment, Identifier [Axis]: Sapphire Telecom, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [1],[2],[3],[14]
Fair Value $ 18,969 [4],[8],[10] $ 19,187 [1],[2],[5],[14]
Percent of net assets 2.15% [6],[8],[10] 1.98% [1],[2],[7],[14]
Investment, Identifier [Axis]: Sara Lee Frozen Bakery, LLC (f/k/a KSLB Holdings, LLC)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3]   4.50%
Fair Value [5]   $ 2,762
Percent of net assets [7]   0.28%
Investment, Identifier [Axis]: Sara Lee Frozen Bakery, LLC (f/k/a KSLB Holdings, LLC) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 4.75%  
Fair Value [4],[10] $ 10,339  
Percent of net assets [6],[10] 1.17%  
Investment, Identifier [Axis]: Sara Lee Frozen Bakery, LLC (f/k/a KSLB Holdings, LLC) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10] 4.75%  
Fair Value [4],[8],[10] $ 9,396  
Percent of net assets [6],[8],[10] 1.07%  
Investment, Identifier [Axis]: Scaled Agile, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 2.25% [8],[9],[10],[13] 5.50% [3],[14],[15]
Fair Value $ 6,714 [4],[8],[10],[13] $ 7,079 [5],[14],[15]
Percent of net assets 0.76% [6],[8],[10],[13] 0.73% [7],[14],[15]
Investment, Identifier [Axis]: Scaled Agile, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 2.25% [9],[10],[13] 5.50% [2],[3],[15]
Fair Value $ 327 [4],[10],[13] $ 348 [2],[5],[15]
Percent of net assets 0.04% [6],[10],[13] 0.04% [2],[7],[15]
Investment, Identifier [Axis]: Service Logic Acquisition, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[15]   3.50%
Fair Value [5],[14],[15]   $ 7,939
Percent of net assets [7],[14],[15]   0.82%
Investment, Identifier [Axis]: Signia Aerospace, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   3.00%
Fair Value [2],[5],[12],[15]   $ 0
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: Signia Aerospace, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[15]   3.00%
Fair Value [5],[14],[15]   $ 1,467
Percent of net assets [7],[14],[15]   0.15%
Investment, Identifier [Axis]: Six Month SOFR    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 3.85% 4.25%
Investment, Identifier [Axis]: Smart Wave Technologies, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 6.00% [9],[10] 6.00% [2],[3],[14]
Fair Value $ 7,752 [4],[10] $ 7,579 [2],[5],[14]
Percent of net assets 0.88% [6],[10] 0.78% [2],[7],[14]
Investment, Identifier [Axis]: Smile Brands Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 8.50% [9],[10] 9.52% [2],[3]
Fair Value $ 10,146 [4],[10] $ 9,352 [2],[5]
Percent of net assets 1.15% [6],[10] 0.96% [2],[7]
Investment, Identifier [Axis]: Smith & Howard Advisory LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 3.75% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ 2,190 [4],[10],[11] $ (23) [2],[5],[12]
Percent of net assets 0.25% [6],[10],[11] 0.00% [2],[7],[12]
Investment, Identifier [Axis]: Smith & Howard Advisory LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 3.75% [8],[9] 4.75% [3],[14]
Fair Value $ 2,845 [4],[8] $ 2,887 [5],[14]
Percent of net assets 0.33% [6],[8] 0.30% [7],[14]
Investment, Identifier [Axis]: Solve Group Holdings, L.P. (Solve Industrial)    
Schedule of Investments [Line Items]    
Fair Value $ 164 [4],[10],[23] $ 154 [2],[5],[17]
Percent of net assets 0.02% [6],[10],[23] 0.02% [2],[7],[17]
Investment, Identifier [Axis]: Solve Industrial Motion Group LLC 1    
Schedule of Investments [Line Items]    
Fair Value $ 1,940 [4],[10] $ 1,787 [2],[5]
Percent of net assets 0.22% [6],[10] 0.18% [2],[7]
Investment, Identifier [Axis]: Solve Industrial Motion Group LLC 2    
Schedule of Investments [Line Items]    
Fair Value $ 836 [4],[10] $ 779 [2],[5]
Percent of net assets 0.09% [6],[10] 0.08% [2],[7]
Investment, Identifier [Axis]: Solve Industrial Motion Group LLC 3    
Schedule of Investments [Line Items]    
Fair Value $ 2,222 [4],[10] $ 2,046 [2],[5]
Percent of net assets 0.25% [6],[10] 0.21% [2],[7]
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14],[15],[20]   3.25%
Fair Value [1],[5],[14],[15],[20]   $ 9,502
Percent of net assets [1],[7],[14],[15],[20]   0.98%
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ 26  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 4.50%  
Fair Value [4],[10],[11] $ 9  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 4.50%  
Fair Value [4],[10] $ 7,018  
Percent of net assets [6],[10] 0.80%  
Investment, Identifier [Axis]: Syndigo LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14]   4.50%
Fair Value [5],[14]   $ 5,775
Percent of net assets [7],[14]   0.60%
Investment, Identifier [Axis]: Syndigo LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 5.00%  
Fair Value [4],[10],[11] $ (3)  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Syndigo LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9] 5.00%  
Fair Value [4],[8] $ 4,387  
Percent of net assets [6],[8] 0.50%  
Investment, Identifier [Axis]: TBRS, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ (22) [4],[10],[11],[13] $ (21) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: TBRS, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ 58 [4],[10],[11],[13] $ 71 [2],[5],[12],[15]
Percent of net assets 0.01% [6],[10],[11],[13] 0.01% [2],[7],[12],[15]
Investment, Identifier [Axis]: TBRS, Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10],[13] 4.75% [3],[14],[15]
Fair Value $ 8,982 [4],[8],[10],[13] $ 8,023 [5],[14],[15]
Percent of net assets 1.02% [6],[8],[10],[13] 0.83% [7],[14],[15]
Investment, Identifier [Axis]: TI Acquisition NC, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.25% [8],[9] 4.75% [3],[14]
Fair Value $ 2,730 [4],[8] $ 2,751 [5],[14]
Percent of net assets 0.31% [6],[8] 0.28% [7],[14]
Investment, Identifier [Axis]: TJC Spartech Acquisition Corp.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[15],[20]   4.75%
Fair Value [2],[5],[14],[15],[20]   $ 10,616
Percent of net assets [2],[7],[14],[15],[20]   1.09%
Investment, Identifier [Axis]: TPC Wire & Cable Corp. 1    
Schedule of Investments [Line Items]    
Fair Value $ 2,295 [4],[10] $ 2,249 [2],[5]
Percent of net assets 0.26% [6],[10] 0.23% [2],[7]
Investment, Identifier [Axis]: TPC Wire & Cable Corp. 2    
Schedule of Investments [Line Items]    
Fair Value $ 939 [4],[10] $ 920 [2],[5]
Percent of net assets 0.11% [6],[10] 0.09% [2],[7]
Investment, Identifier [Axis]: TPC Wire & Cable Corp. 3    
Schedule of Investments [Line Items]    
Fair Value $ 1,750 [4],[10] $ 1,714 [2],[5]
Percent of net assets 0.20% [6],[10] 0.18% [2],[7]
Investment, Identifier [Axis]: TSS Buyer, LLC (Technical Safety Services) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9] 5.50% [3],[14]
Fair Value $ 6,652 [4],[8] $ 6,703 [5],[14]
Percent of net assets 0.75% [6],[8] 0.69% [7],[14]
Investment, Identifier [Axis]: TSS Buyer, LLC (Technical Safety Services) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [9],[10],[11] 5.50% [2],[3],[12]
Fair Value $ 5,250 [4],[10],[11] $ 4,922 [2],[5],[12]
Percent of net assets 0.60% [6],[10],[11] 0.51% [2],[7],[12]
Investment, Identifier [Axis]: TSS Buyer, LLC (Technical Safety Services) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3],[14]
Fair Value $ 1,857 [4],[8],[10] $ 1,871 [2],[5],[14]
Percent of net assets 0.21% [6],[8],[10] 0.19% [2],[7],[14]
Investment, Identifier [Axis]: Tau Buyer, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ 1,439  
Percent of net assets [6],[10],[11],[13] 0.16%  
Investment, Identifier [Axis]: Tau Buyer, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ 175  
Percent of net assets [6],[10],[11],[13] 0.02%  
Investment, Identifier [Axis]: Tau Buyer, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10],[13] 4.75%  
Fair Value [4],[8],[10],[13] $ 9,804  
Percent of net assets [6],[8],[10],[13] 1.11%  
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[14],[15]   4.25%
Fair Value [2],[5],[14],[15]   $ 4,635
Percent of net assets [2],[7],[14],[15]   0.48%
Investment, Identifier [Axis]: Thermostat Purchaser III, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   4.25%
Fair Value [2],[5],[12],[15]   $ 0
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: Thompson Safety LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 5.00%  
Fair Value [4],[10],[11] $ 0  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Thompson Safety LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11] 5.00%  
Fair Value [4],[10],[11] $ 0  
Percent of net assets [6],[10],[11] 0.00%  
Investment, Identifier [Axis]: Three Month SOFR    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 3.98% 4.31%
Investment, Identifier [Axis]: Tidi Legacy Products, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9],[10],[13] 5.25% [1],[2],[3],[14],[15]
Fair Value $ 15,404 [4],[8],[10],[13] $ 15,418 [1],[2],[5],[14],[15]
Percent of net assets 1.75% [6],[8],[10],[13] 1.59% [1],[2],[7],[14],[15]
Investment, Identifier [Axis]: Tidi Legacy Products, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10],[11],[13] 5.25% [2],[3],[12],[15]
Fair Value $ 41 [4],[10],[11],[13] $ 13 [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Tinuiti Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [2],[3],[14],[15]
Fair Value $ 2,796 [4],[8],[10],[13] $ 2,886 [2],[5],[14],[15]
Percent of net assets 0.31% [6],[8],[10],[13] 0.30% [2],[7],[14],[15]
Investment, Identifier [Axis]: Tinuiti Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[10],[13] 5.25% [2],[3],[14],[15]
Fair Value $ 1,827 [4],[8],[10],[13] $ 1,886 [2],[5],[14],[15]
Percent of net assets 0.21% [6],[8],[10],[13] 0.19% [2],[7],[14],[15]
Investment, Identifier [Axis]: Tinuiti Inc. 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[13] 5.25% [2],[3],[15]
Fair Value $ 9,356 [4],[10],[13] $ 9,658 [2],[5],[15]
Percent of net assets 1.06% [6],[10],[13] 1.00% [2],[7],[15]
Investment, Identifier [Axis]: Transit Buyer, LLC (Propark Mobility) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 6,703 [4],[8] $ 6,749 [5],[14]
Percent of net assets 0.76% [6],[8] 0.70% [7],[14]
Investment, Identifier [Axis]: Transit Buyer, LLC (Propark Mobility) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10] 5.00% [2],[3],[12]
Fair Value $ 3,085 [4],[10] $ 2,683 [2],[5],[12]
Percent of net assets 0.35% [6],[10] 0.28% [2],[7],[12]
Investment, Identifier [Axis]: Transit Buyer, LLC (Propark Mobility) 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [2],[3],[14]
Fair Value $ 10,096 [4],[8],[10] $ 10,164 [2],[5],[14]
Percent of net assets 1.15% [6],[8],[10] 1.05% [2],[7],[14]
Investment, Identifier [Axis]: Trilon Group, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 5.50% [1],[2],[3],[14]
Fair Value $ 27,545 [4],[8],[10] $ 27,584 [1],[2],[5],[14]
Percent of net assets 3.11% [6],[8],[10] 2.84% [1],[2],[7],[14]
Investment, Identifier [Axis]: Trilon Group, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10] 5.50% [2],[3]
Fair Value $ 1,861 [4],[10] $ 1,863 [2],[5]
Percent of net assets 0.21% [6],[10] 0.19% [2],[7]
Investment, Identifier [Axis]: Turbine Engine Specialists, Inc.    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 9.50% [9],[10] 9.50% [2],[3]
Fair Value $ 2,531 [4],[10] $ 2,530 [2],[5]
Percent of net assets 0.29% [6],[10] 0.26% [2],[7]
Investment, Identifier [Axis]: Twelve Month SOFR    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 3.66% 4.18%
Investment, Identifier [Axis]: Tyto Athene, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.75% [2],[3],[14]
Fair Value $ 6,851 [4],[8],[10] $ 6,952 [2],[5],[14]
Percent of net assets 0.78% [6],[8],[10] 0.72% [2],[7],[14]
Investment, Identifier [Axis]: US MetalCo Holdings LLC (MGM Transformer Company) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3],[14]
Fair Value $ 23,112 [4],[8],[10] $ 23,511 [2],[5],[14]
Percent of net assets 2.62% [6],[8],[10] 2.43% [2],[7],[14]
Investment, Identifier [Axis]: US MetalCo Holdings LLC (MGM Transformer Company) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 5.50% [2],[3]
Fair Value $ 6,284 [4],[10] $ 6,393 [2],[5]
Percent of net assets 0.71% [6],[10] 0.66% [2],[7]
Investment, Identifier [Axis]: USA Water Intermediate Holdings, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9] 4.75% [2],[3],[14]
Fair Value $ 7,778 [4],[8] $ 7,837 [2],[5],[14]
Percent of net assets 0.88% [6],[8] 0.81% [2],[7],[14]
Investment, Identifier [Axis]: USA Water Intermediate Holdings, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11] 4.75% [2],[3],[12]
Fair Value $ 2,034 [4],[10],[11] $ 333 [2],[5],[12]
Percent of net assets 0.23% [6],[10],[11] 0.03% [2],[7],[12]
Investment, Identifier [Axis]: USAW Parent LLC (USA Water)    
Schedule of Investments [Line Items]    
Fair Value $ 642 [4],[10],[23] $ 566 [5],[17],[21]
Percent of net assets 0.07% [6],[10],[23] 0.06% [7],[17],[21]
Investment, Identifier [Axis]: Ultima Health Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value [2],[5]   $ 1,761
Percent of net assets [2],[7]   0.18%
Investment, Identifier [Axis]: Ultima Health Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value $ 312 [4],[10],[23] $ 212 [2],[5],[17]
Percent of net assets 0.04% [6],[10],[23] 0.02% [2],[7],[17]
Investment, Identifier [Axis]: VALIDITY INC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10] 5.25%  
Fair Value [4],[10] $ 99  
Percent of net assets [6],[10] 0.01%  
Investment, Identifier [Axis]: VCP Tech24 Co-Invest Aggregator LP (Tech24)    
Schedule of Investments [Line Items]    
Fair Value $ 955 [4],[10],[23],[26] $ 957 [2],[5],[17]
Percent of net assets 0.11% [6],[10],[23],[26] 0.10% [2],[7],[17]
Investment, Identifier [Axis]: VMG Holdings LLC (VMG Health) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 4.75% [1],[3],[14]
Fair Value $ 1,124 [4],[8],[10] $ 15,744 [1],[5],[14]
Percent of net assets 0.13% [6],[8],[10] 1.61% [1],[7],[14]
Investment, Identifier [Axis]: VMG Holdings LLC (VMG Health) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 4.75% [2],[3]
Fair Value $ 15,642 [4],[8],[10] $ 1,128 [2],[5]
Percent of net assets 1.77% [6],[8],[10] 0.12% [2],[7]
Investment, Identifier [Axis]: VRC Companies, LLC (Vital Records Control) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[13] 5.50% [3],[14],[15]
Fair Value $ 4,491 [4],[8],[13] $ 4,489 [5],[14],[15]
Percent of net assets 0.51% [6],[8],[13] 0.46% [7],[14],[15]
Investment, Identifier [Axis]: VRC Companies, LLC (Vital Records Control) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[13] 5.75% [3],[14],[15]
Fair Value $ 328 [4],[8],[13] $ 329 [5],[14],[15]
Percent of net assets 0.04% [6],[8],[13] 0.03% [7],[14],[15]
Investment, Identifier [Axis]: VSTG Intermediate Holdings, Inc. (Vistage Worldwide, Inc.)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[15]   4.75%
Fair Value [5],[14],[15]   $ 4,989
Percent of net assets [7],[14],[15]   0.51%
Investment, Identifier [Axis]: Valkyrie Intermediate, LLC    
Schedule of Investments [Line Items]    
Fair Value $ 2,866 [4],[10] $ 2,823 [2],[5]
Percent of net assets 0.33% [6],[10] 0.29% [2],[7]
Investment, Identifier [Axis]: Vensure Employer Services, Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[13] 5.00% [2],[3],[15]
Fair Value $ 3,062 [4],[10],[13] $ 2,718 [2],[5],[15]
Percent of net assets 0.35% [6],[10],[13] 0.28% [2],[7],[15]
Investment, Identifier [Axis]: Vensure Employer Services, Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10],[11],[13] 5.00% [2],[3],[12],[15]
Fair Value $ 0 [4],[10],[11],[13] $ (3) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Venture Buyer, LLC (Velosio) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [8],[9],[13] 5.25% [1],[3],[14],[15]
Fair Value $ 6,154 [4],[8],[13] $ 6,207 [1],[5],[14],[15]
Percent of net assets 0.70% [6],[8],[13] 0.64% [1],[7],[14],[15]
Investment, Identifier [Axis]: Venture Buyer, LLC (Velosio) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.25% [9],[10],[11],[13] 5.25% [2],[3],[12],[15]
Fair Value $ 224 [4],[10],[11],[13] $ 1 [2],[5],[12],[15]
Percent of net assets 0.03% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10],[13] 4.75% [1],[2],[3],[14],[15]
Fair Value $ 13,582 [4],[8],[10],[13] $ 13,573 [1],[2],[5],[14],[15]
Percent of net assets 1.54% [6],[8],[10],[13] 1.39% [1],[2],[7],[14],[15]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ 2,441 [4],[10],[11],[13] $ 1,159 [2],[5],[12],[15]
Percent of net assets 0.28% [6],[10],[11],[13] 0.12% [2],[7],[12],[15]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[11],[13] 4.75% [2],[3],[12],[15]
Fair Value $ (16) [4],[10],[11],[13] $ (17) [2],[5],[12],[15]
Percent of net assets 0.00% [6],[10],[11],[13] 0.00% [2],[7],[12],[15]
Investment, Identifier [Axis]: Victors CCC Buyer LLC (CrossCountry Consulting) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[13] 4.75% [3],[14],[15]
Fair Value $ 8,029 [4],[8],[13] $ 8,127 [5],[14],[15]
Percent of net assets 0.91% [6],[8],[13] 0.84% [7],[14],[15]
Investment, Identifier [Axis]: Victors CCC Buyer LLC (CrossCountry Consulting) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 4.75% [2],[3],[15]
Fair Value $ 824 [4],[10],[13] $ 834 [2],[5],[15]
Percent of net assets 0.09% [6],[10],[13] 0.09% [2],[7],[15]
Investment, Identifier [Axis]: WCHG Buyer, Inc. (Handgards, LLC)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.50% [1],[2],[3],[14]
Fair Value $ 23,889 [4],[8],[10] $ 24,613 [1],[2],[5],[14]
Percent of net assets 2.71% [6],[8],[10] 2.54% [1],[2],[7],[14]
Investment, Identifier [Axis]: WE Select Fund 3, L.P.    
Schedule of Investments [Line Items]    
Fair Value [4],[10],[23],[26] $ 483  
Percent of net assets [6],[10],[23],[26] 0.05%  
Investment, Identifier [Axis]: WPP Fairway Aggregator B, L.P (Fresh Edge) 1    
Schedule of Investments [Line Items]    
Fair Value $ 0 [4],[10],[23] $ 0 [2],[5],[17]
Percent of net assets 0.00% [6],[10],[23] 0.00% [2],[7],[17]
Investment, Identifier [Axis]: WPP Fairway Aggregator B, L.P (Fresh Edge) 2    
Schedule of Investments [Line Items]    
Fair Value $ 351 [4],[10],[23] $ 581 [2],[5],[17]
Percent of net assets 0.04% [6],[10],[23] 0.06% [2],[7],[17]
Investment, Identifier [Axis]: WSB Engineering Holdings Inc. 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9] 6.00% [2],[3],[14]
Fair Value $ 6,344 [4],[8] $ 6,432 [2],[5],[14]
Percent of net assets 0.72% [6],[8] 0.66% [2],[7],[14]
Investment, Identifier [Axis]: WSB Engineering Holdings Inc. 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [9],[10] 6.00% [2],[3],[12]
Fair Value $ 4,168 [4],[10] $ 3,743 [2],[5],[12]
Percent of net assets 0.47% [6],[10] 0.39% [2],[7],[12]
Investment, Identifier [Axis]: Watermill Express, LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [9],[10],[13] 4.75% [2],[3],[12],[15]
Fair Value $ 2,373 [4],[10],[13] $ 578 [2],[5],[12],[15]
Percent of net assets 0.27% [6],[10],[13] 0.06% [2],[7],[12],[15]
Investment, Identifier [Axis]: Watermill Express, LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10],[13] 5.25% [2],[3],[15]
Fair Value $ 3,154 [4],[8],[10],[13] $ 3,162 [2],[5],[15]
Percent of net assets 0.36% [6],[8],[10],[13] 0.33% [2],[7],[15]
Investment, Identifier [Axis]: Watermill Express, LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10],[13] 5.25% [1],[3],[14],[15]
Fair Value $ 6,295 [4],[8],[10],[13] $ 6,311 [1],[5],[14],[15]
Percent of net assets 0.71% [6],[8],[10],[13] 0.65% [1],[7],[14],[15]
Investment, Identifier [Axis]: Watermill Express, LLC 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[13] 5.25% [3],[14],[15]
Fair Value $ 3,211 [4],[8],[13] $ 3,220 [5],[14],[15]
Percent of net assets 0.36% [6],[8],[13] 0.33% [7],[14],[15]
Investment, Identifier [Axis]: Watermill Express, LLC 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[13] 5.25% [3],[14],[15]
Fair Value $ 310 [4],[8],[13] $ 311 [5],[14],[15]
Percent of net assets 0.04% [6],[8],[13] 0.03% [7],[14],[15]
Investment, Identifier [Axis]: Watermill Express, LLC 6    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[11],[13] 4.75%  
Fair Value [4],[10],[11],[13] $ 0  
Percent of net assets [6],[10],[11],[13] 0.00%  
Investment, Identifier [Axis]: Watermill Express, LLC 7    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [9],[10],[13] 4.75%  
Fair Value [4],[10],[13] $ 2,741  
Percent of net assets [6],[10],[13] 0.31%  
Investment, Identifier [Axis]: Wellspring Pharmaceutical Corporation 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [2],[3],[14]
Fair Value $ 7,257 [4],[8],[10] $ 7,245 [2],[5],[14]
Percent of net assets 0.82% [6],[8],[10] 0.75% [2],[7],[14]
Investment, Identifier [Axis]: Wellspring Pharmaceutical Corporation 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9] 5.00% [3],[14]
Fair Value $ 3,109 [4],[8] $ 3,314 [5],[14]
Percent of net assets 0.35% [6],[8] 0.34% [7],[14]
Investment, Identifier [Axis]: Wellspring Pharmaceutical Corporation 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [9],[10] 5.00% [2],[3]
Fair Value $ 1,543 [4],[10] $ 1,541 [2],[5]
Percent of net assets 0.18% [6],[10] 0.16% [2],[7]
Investment, Identifier [Axis]: Wellspring Pharmaceutical Corporation 4    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [2],[3],[12]
Fair Value $ 2,541 [4],[8],[10] $ 2,526 [2],[5],[12]
Percent of net assets 0.29% [6],[8],[10] 0.26% [2],[7],[12]
Investment, Identifier [Axis]: Wellspring Pharmaceutical Corporation 5    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10] 5.00% [2],[3],[14]
Fair Value $ 1,224 [4],[8],[10] $ 1,222 [2],[5],[14]
Percent of net assets 0.14% [6],[8],[10] 0.13% [2],[7],[14]
Investment, Identifier [Axis]: World Insurance Associates, LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.00% [8],[9],[10],[13] 6.00% [2],[3],[14],[15]
Fair Value $ 14,671 [4],[8],[10],[13] $ 14,716 [2],[5],[14],[15]
Percent of net assets 1.66% [6],[8],[10],[13] 1.51% [2],[7],[14],[15]
Investment, Identifier [Axis]: Wrench Group LLC    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [3],[14],[15]   4.00%
Fair Value [5],[14],[15]   $ 9,959
Percent of net assets [7],[14],[15]   1.03%
Investment, Identifier [Axis]: XpressMyself.com LLC (SmartSign) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [1],[3],[14]
Fair Value $ 9,700 [4],[8],[10] $ 9,775 [1],[5],[14]
Percent of net assets 1.10% [6],[8],[10] 1.01% [1],[7],[14]
Investment, Identifier [Axis]: XpressMyself.com LLC (SmartSign) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.75% [8],[9] 5.75% [3],[14]
Fair Value $ 4,936 [4],[8] $ 4,974 [5],[14]
Percent of net assets 0.56% [6],[8] 0.51% [7],[14]
Investment, Identifier [Axis]: YI, LLC (Young Innovations)    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [8],[9],[10],[13] 5.75%  
Fair Value [4],[8],[10],[13] $ 15,932  
Percent of net assets [6],[8],[10],[13] 1.81%  
Investment, Identifier [Axis]: YI, LLC (Young Innovations) 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [1],[3],[14],[15]   5.75%
Fair Value [1],[5],[14],[15]   $ 16,244
Percent of net assets [1],[7],[14],[15]   1.66%
Investment, Identifier [Axis]: YI, LLC (Young Innovations) 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) [2],[3],[12],[15]   5.75%
Fair Value [2],[5],[12],[15]   $ (30)
Percent of net assets [2],[7],[12],[15]   0.00%
Investment, Identifier [Axis]: good2grow LLC 1    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.50% [8],[9],[10] 4.50% [1],[3],[14]
Fair Value $ 8,699 [4],[8],[10] $ 8,699 [1],[5],[14]
Percent of net assets 0.99% [6],[8],[10] 0.90% [1],[7],[14]
Investment, Identifier [Axis]: good2grow LLC 2    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 5.50% [8],[9],[10] 5.50% [2],[3],[14]
Fair Value $ 4,029 [4],[8],[10] $ 4,981 [2],[5],[14]
Percent of net assets 0.46% [6],[8],[10] 0.51% [2],[7],[14]
Investment, Identifier [Axis]: good2grow LLC 3    
Schedule of Investments [Line Items]    
Effective interest rate (as a percent) 4.75% [8],[9],[10] 4.75% [1],[3],[14]
Fair Value $ 14,158 [4],[8],[10] $ 14,408 [1],[5],[14]
Percent of net assets 1.61% [6],[8],[10] 1.48% [1],[7],[14]
[1] Denotes that all or a portion of the assets are owned by SPV V (as defined in Note 1 "Organization"). SPV V has entered into a senior secured revolving credit facility (the “Wells Fargo Financing Facility”). The lenders of the Wells Fargo Financing Facility have a first lien security interest in substantially all of the assets of SPV V. Accordingly, such assets are not available to other creditors of the Company.
[2] Denotes that all or a portion of the assets are owned by the Company or NCDL Equity Holdings (each as defined in Note 1 "Organization"). The Company entered into a senior secured revolving credit agreement (the “Revolving Credit Facility”). The Revolving Credit Facility is guaranteed by NCDL Equity Holdings and will be guaranteed by certain subsidiaries of the Company that are formed or acquired by the Company in the future.
[3] The majority of the investments bear interest at rates that may be determined by reference to Secured Overnight Financing Rate (“SOFR” or "S"), which reset monthly or quarterly. For each such investment, the Company has provided the spread over SOFR and the current contractual interest rate in effect at December 31, 2024. As of December 31, 2024, rate for 1M S, 3M S, 6M S, 12M S ("SOFR") are 4.33%, 4.31%, 4.25%, and 4.18%, respectively. Certain investments are subject to a SOFR floor. For fixed rate loans, a spread above a reference rate is not applicable.
[4] Investment valued using unobservable inputs (Level 3), unless noted otherwise. See Note 2 “Significant Accounting Policies – Valuation of Portfolio Investments” and Note 5 "Fair Value Measurements" for more information.
[5] Investment valued using unobservable inputs (Level 3). See Note 2 “Significant Accounting Policies – Valuation of Portfolio Investments” and Note 5 "Fair Value Measurements" for more information.
[6] Percentage is based on net assets of $881,485 as of September 30, 2025.
[7] Percentage is based on net assets of $970,320 as of December 31, 2024.
[8] Denotes that all or a portion of the assets are owned by CLO-I, CLO-II and/or CLO-III (each as defined in Note 1 “Organization”), which serve as collateral for the Company's debt securitizations. See Note 7 “Borrowings” for more information.
[9] The majority of the investments bear interest at rates that may be determined by reference to Secured Overnight Financing Rate ("SOFR" or "S"), which generally reset periodically. For each such investment, the Company has provided the spread over SOFR and the current contractual interest rate in effect at September 30, 2025. As of September 30, 2025, rates for 1M S, 3M S, 6M S, 12M S ("SOFR") are 4.13%, 3.98%, 3.85%, and 3.66%, respectively. Certain investments are subject to a SOFR floor or may utilize an alternative reference rate such as U.S. Prime Rate (“P”). For fixed rate loans, a spread above a reference rate is not applicable.
[10] Denotes that all or a portion of the assets are owned by the Company or NCDL Equity Holdings (each as defined in Note 1 “Organization”). The Company entered into a senior secured revolving credit agreement (the “Revolving Credit Facility”). The Revolving Credit Facility is guaranteed by NCDL Equity Holdings and will be guaranteed by certain subsidiaries of the Company that are formed or acquired by the Company in the future. See Note 7 “Borrowings” for more information.
[11] Position or portion thereof is an unfunded loan or equity commitment. For unfunded loan commitments, no interest is being earned on the unfunded portion, although the investment may be subject to unused commitment fees. Negative cost and fair value result from unamortized fees, which are capitalized to the investment cost. The unfunded loan commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See Note 8 “Commitments and Contingencies”.
[12] Position or portion thereof is an unfunded loan commitment, and no interest is being earned on the unfunded portion. See Note 8 "Commitments and Contingencies". The investment may be subject to unused commitment fees.
[13] Investment is a unitranche position.
[14] Denotes that all or a portion of the assets are owned by CLO-I, CLO-II and/or CLO-III (each as defined in Note 1 "Organization"), which serve as collateral for the 2022 Debt Securitization, the 2023 Debt Securitization, and the 2024 Debt Securitization (each as defined in the Notes). See Note 7 "Secured Borrowings".
[15] Investment is a unitranche position.
[16] Investments valued using observable inputs (Level 2). See Note 2 “Significant Accounting Policies – Valuation of Portfolio Investments” and Note 5 “Fair Value Measurements” for more information.
[17] Security acquired in transaction exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”), and may be deemed to be a “restricted security” under the Securities Act. As of December 31, 2024, the Company held fifty-two restricted securities with an aggregate fair value of 36,598, or 3.77% of the Company’s net assets.
[18] Loan was on non-accrual status as of September 30, 2025.
[19] Loan was on non-accrual status as of December 31, 2024.
[20] Investments valued using observable inputs (Level 2). See Note 2 “Significant Accounting Policies – Valuation of Portfolio Investments” and Note 5 "Fair Value Measurements" for more information.
[21] The investment is considered as a non-qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company cannot acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company's total assets. As of December 31, 2024, total non-qualifying assets at fair value represented 4.71% of the Company's total assets calculated in accordance with the 1940 Act.
[22] The investment is considered a non-qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company cannot acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company's total assets. As of September 30, 2025, total non-qualifying assets at fair value represented 4.27% of the Company's total assets calculated in accordance with the 1940 Act.
[23] Security acquired in transaction exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”), and may be deemed to be a “restricted security” under the Securities Act. As of September 30, 2025, the Company held sixty-two restricted securities with an aggregate fair value of $40,941, or 4.64% of the Company’s net assets.
[24] Represents an investment held through an aggregator vehicle organized as a pooled investment vehicle.
[25] Represents an investment held through an aggregator vehicle organized as a pooled investment vehicle.
[26] Investments measured at net asset value (“NAV”). See Note 2 “Significant Accounting Policies – Valuation of Portfolio Investments” for more information.