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Consolidated Schedule of Investments
€ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Sep. 30, 2023
EUR (€)
Interest rate, PIK   3.75%    
Cost $ 3,158,601,000 $ 2,939,646,000 [1] $ 2,373,435,000  
Fair Value $ 3,123,450,000 $ 2,873,588,000 $ 2,387,374,000  
Percentage of Net Assets   205.65% 200.86%  
Unused Fee Rate   0.375%    
Investment, Identifier [Axis]: 365 Retail Markets, LLC        
Unused Fee Rate 0.50% 0.50% 1.00%  
Unfunded Commitment $ 2,800,000 $ 1,200,000 $ 5,557,000  
Fair Value   $ (27,000) $ (34,000)  
Investment, Identifier [Axis]: 365 Retail Markets, LLC 1        
Variable interest rate 4.75% [2],[3],[4] 4.75% [3],[4],[5] 4.75% [6] 4.75% [2],[3],[4]
Interest Rate 10.15% [2],[3],[4] 8.45% [3],[4],[5],[7] 5.75% [6],[8] 10.15% [2],[3],[4]
Par Amount   $ 17,280,000 [3],[4],[5] $ 17,456,000 [6]  
Cost $ (30,000) [2],[3],[4] 17,045,000 [3],[4],[5],[9] 17,167,000 [1],[6]  
Fair Value   $ 16,890,000 [3],[4],[5] $ 17,238,000 [6]  
Percentage of Net Assets   1.21% [3],[4],[5] 1.45% [6]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,000,000  
Fair Value     $ (25,000)  
Investment, Identifier [Axis]: 365 Retail Markets, LLC 2        
Variable interest rate 4.75% [3],[4] 4.75% [3],[4],[5] 4.75% [6],[10] 4.75% [3],[4]
Interest Rate 10.15% [3],[4] 8.45% [3],[4],[5],[7] 5.75% [6],[8],[10] 10.15% [3],[4]
Par Amount [3],[4] $ 17,149,000 $ 5,543,000 [5]    
Cost 16,952,000 [3],[4] 5,484,000 [3],[4],[5],[9] $ (34,000) [1],[6],[10]  
Fair Value $ 17,149,000 [3],[4] $ 5,418,000 [3],[4],[5] $ (34,000) [6],[10]  
Percentage of Net Assets 1.16% [3],[4] 0.39% [3],[4],[5] 0.00% [6],[10] 1.16% [3],[4]
Investment, Identifier [Axis]: 365 Retail Markets, LLC 3        
Variable interest rate 4.75% [3],[4] 4.75% [3],[4],[5],[11],[12] 4.75% [6],[10] 4.75% [3],[4]
Interest Rate 10.15% [3],[4] 8.45% [3],[4],[5],[7],[11],[12] 5.75% [6],[8],[10] 10.15% [3],[4]
Par Amount $ 5,502,000 [3],[4] $ 1,600,000 [3],[4],[5],[11],[12] $ 800,000 [6],[10]  
Cost 5,452,000 [3],[4] 1,563,000 [3],[4],[5],[9],[11],[12] 754,000 [1],[6],[10]  
Fair Value $ 5,502,000 [3],[4] $ 1,537,000 [3],[4],[5],[11],[12] $ 765,000 [6],[10]  
Percentage of Net Assets 0.37% [3],[4] 0.11% [3],[4],[5],[11],[12] 0.06% [6],[10] 0.37% [3],[4]
Investment, Identifier [Axis]: 48Forty Solutions LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,629,000 $ 2,715,000    
Fair Value $ (30,000) $ (139,000)    
Investment, Identifier [Axis]: 48Forty Solutions LLC 1        
Variable interest rate [3] 6.00% [13],[14] 6.00% [4],[5]   6.00% [13],[14]
Interest Rate [3] 11.43% [13],[14] 10.26% [4],[5],[7]   11.43% [13],[14]
Par Amount [3] $ 17,767,000 [13],[14] $ 1,796,000 [4],[5]    
Cost [3] 17,479,000 [13],[14] 1,728,000 [4],[5],[9]    
Fair Value [3] $ 17,439,000 [13],[14] $ 1,732,000 [4],[5]    
Percentage of Net Assets [3] 1.18% [13],[14] 0.12% [4],[5]   1.18% [13],[14]
Investment, Identifier [Axis]: 48Forty Solutions LLC 2        
Variable interest rate [3] 6.00% [14],[15] 5.50% [4],[5],[16],[17]   6.00% [14],[15]
Interest Rate [3] 11.43% [14],[15] 9.76% [4],[5],[7],[16],[17]   11.43% [14],[15]
Par Amount [3] $ 1,086,000 [14],[15] $ 16,106,000 [4],[5],[16],[17]    
Cost [3] 1,049,000 [14],[15] 15,825,000 [4],[5],[9],[16],[17]    
Fair Value [3] $ 1,036,000 [14],[15] $ 15,283,000 [4],[5],[16],[17]    
Percentage of Net Assets [3] 0.07% [14],[15] 1.09% [4],[5],[16],[17]   0.07% [14],[15]
Investment, Identifier [Axis]: 48Forty Solutions LLC 3        
Variable interest rate [3],[4],[5],[11],[12]   5.50%    
Interest Rate [3],[4],[5],[7],[11],[12]   9.76%    
Cost [3],[4],[5],[9],[11],[12]   $ (46,000)    
Fair Value [3],[4],[5],[11],[12]   $ (139,000)    
Percentage of Net Assets [3],[4],[5],[11],[12]   (0.01%)    
Investment, Identifier [Axis]: ABB Concise Optical Group, LLC        
Variable interest rate [14],[18] 7.50%     7.50%
Interest Rate [14],[18] 13.05%     13.05%
Par Amount [14],[18] $ 17,008,000      
Cost [14],[18] 16,671,000      
Fair Value [14],[18] $ 15,358,000      
Percentage of Net Assets [14],[18] 1.04%     1.04%
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 94,000    
Fair Value   $ (4,000)    
Investment, Identifier [Axis]: ABB Concise Optical Group, LLC 1        
Variable interest rate [4],[5],[18],[19]   7.50%    
Interest Rate [4],[5],[7],[18],[19]   12.67%    
Par Amount [4],[5],[18],[19]   $ 17,977,000    
Cost [4],[5],[9],[18],[19]   17,578,000    
Fair Value [4],[5],[18],[19]   $ 17,165,000    
Percentage of Net Assets [4],[5],[18],[19]   1.23%    
Investment, Identifier [Axis]: ABB Concise Optical Group, LLC 2        
Variable interest rate [4],[5],[11],[12],[18],[19]   6.50%    
Interest Rate [4],[5],[7],[11],[12],[18],[19]   13.99%    
Par Amount [4],[5],[11],[12],[18],[19]   $ 1,792,000    
Cost [4],[5],[9],[11],[12],[18],[19]   1,752,000    
Fair Value [4],[5],[11],[12],[18],[19]   $ 1,707,000    
Percentage of Net Assets [4],[5],[11],[12],[18],[19]   0.12%    
Investment, Identifier [Axis]: AGI-CFI Holdings, Inc.        
Variable interest rate [4],[18] 5.75% 5.75%   5.75%
Interest Rate [4],[7],[18] 11.29% 10.48%   11.29%
Par Amount [4],[18] $ 14,299,000 $ 14,408,000    
Cost [4],[18],[20] 14,071,000 14,140,000    
Fair Value [4],[18] $ 14,147,000 $ 13,851,000    
Percentage of Net Assets [4],[18] 0.95% 0.99%   0.95%
Investment, Identifier [Axis]: AMCP Pet Holdings, Inc. (Brightpet)        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 3,646,000      
Fair Value $ (90,000)      
Investment, Identifier [Axis]: AMCP Pet Holdings, Inc. (Brightpet) 1        
Variable interest rate 7.00% [3],[13],[14] 6.25% [3],[4],[17] 6.25% [6],[21] 7.00% [3],[13],[14]
Interest rate, PIK [3],[13],[14] 0.75%     0.75%
Interest Rate 13.27% [3],[13],[14] 10.98% [3],[4],[7],[17] 7.25% [6],[8],[21] 13.27% [3],[13],[14]
Par Amount $ 41,791,000 [3],[13],[14] $ 17,150,000 [3],[4],[17] $ 33,825,000 [6],[21]  
Cost 40,979,000 [3],[13],[14] 16,798,000 [3],[4],[9],[17] 32,969,000 [1],[6],[21]  
Fair Value $ 40,755,000 [3],[13],[14] $ 16,795,000 [3],[4],[17] $ 33,527,000 [6],[21]  
Percentage of Net Assets 2.75% [3],[13],[14] 1.20% [3],[4],[17] 2.82% [6],[21] 2.75% [3],[13],[14]
Investment, Identifier [Axis]: AMCP Pet Holdings, Inc. (Brightpet) 2        
Variable interest rate 7.00% [3],[14],[15] 6.25% [3],[4] 6.25% [6],[10] 7.00% [3],[14],[15]
Interest rate, PIK [3],[14],[15] 0.75%     0.75%
Interest Rate 13.27% [3],[14],[15] 10.98% [3],[4],[7] 7.25% [6],[8],[10] 13.27% [3],[14],[15]
Par Amount [3] $ 2,189,000 [14],[15] $ 16,333,000 [4]    
Cost 2,099,000 [3],[14],[15] 15,989,000 [3],[4],[9] $ (119,000) [1],[6],[10]  
Fair Value $ 2,044,000 [3],[14],[15] $ 15,995,000 [3],[4] $ (44,000) [6],[10]  
Percentage of Net Assets 0.14% [3],[14],[15] 1.14% [3],[4] 0.00% [6],[10] 0.14% [3],[14],[15]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 5,000,000  
Fair Value     $ (44,000)  
Investment, Identifier [Axis]: AMCP Pet Holdings, Inc. (Brightpet) 3        
Variable interest rate   6.25% [3],[4] 6.25% [6],[10]  
Interest Rate   10.98% [3],[4],[7] 7.25% [6],[8],[10]  
Par Amount   $ 5,833,000 [3],[4] $ 3,938,000 [6],[10]  
Cost   5,721,000 [3],[4],[9] 3,796,000 [1],[6],[10]  
Fair Value   $ 5,713,000 [3],[4] $ 3,886,000 [6],[10]  
Percentage of Net Assets   0.41% [3],[4] 0.33% [6],[10]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,896,000  
Fair Value     $ (17,000)  
Investment, Identifier [Axis]: ARI Network Services, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,273,000 $ 2,121,000    
Fair Value $ (12,000) $ (60,000)    
Investment, Identifier [Axis]: ARI Network Services, Inc. 1        
Variable interest rate 5.25% [4],[13],[18] 5.50% [4],[5],[16],[17],[18],[19] 6.50% [6],[21] 5.25% [4],[13],[18]
Interest Rate 10.67% [4],[7],[13],[18] 9.92% [4],[5],[7],[16],[17],[18],[19] 7.50% [6],[21],[22] 10.67% [4],[7],[13],[18]
Par Amount $ 20,564,000 [4],[13],[18] $ 20,723,000 [4],[5],[16],[17],[18],[19] $ 20,931,000 [6],[21]  
Cost 20,392,000 [4],[13],[18],[20] 20,465,000 [4],[5],[9],[16],[17],[18],[19] 20,563,000 [1],[6],[21]  
Fair Value $ 20,365,000 [4],[13],[18] $ 20,134,000 [4],[5],[16],[17],[18],[19] $ 20,767,000 [6],[21]  
Percentage of Net Assets 1.37% [4],[13],[18] 1.44% [4],[5],[16],[17],[18],[19] 1.75% [6],[21] 1.37% [4],[13],[18]
Investment, Identifier [Axis]: ARI Network Services, Inc. 2        
Variable interest rate 5.25% [4],[13],[18] 5.50% [4],[5],[16],[17],[18],[19] 6.50% [6],[10],[21] 5.25% [4],[13],[18]
Interest Rate 10.67% [4],[13],[18] 9.92% [4],[5],[7],[16],[17],[18],[19] 7.50% [6],[10],[21],[22] 10.67% [4],[13],[18]
Par Amount $ 3,603,000 [4],[13],[18] $ 3,630,000 [4],[5],[16],[17],[18],[19] $ 3,667,000 [6],[10],[21]  
Cost 3,572,000 [4],[13],[18] 3,586,000 [4],[5],[9],[16],[17],[18],[19] 3,603,000 [1],[6],[10],[21]  
Fair Value $ 3,568,000 [4],[13],[18] $ 3,527,000 [4],[5],[16],[17],[18],[19] $ 3,639,000 [6],[10],[21]  
Percentage of Net Assets 0.24% [4],[13],[18] 0.25% [4],[5],[16],[17],[18],[19] 0.31% [6],[10],[21] 0.24% [4],[13],[18]
Investment, Identifier [Axis]: ARI Network Services, Inc. 3        
Variable interest rate 5.25% [2],[4],[18] 5.50% [4],[5],[11],[12],[18],[19] 6.50% [6],[10] 5.25% [2],[4],[18]
Interest Rate 10.67% [2],[4],[18] 9.92% [4],[5],[7],[11],[12],[18],[19] 7.50% [6],[10],[22] 10.67% [2],[4],[18]
Par Amount $ 1,757,000 [2],[4],[18] $ 909,000 [4],[5],[11],[12],[18],[19] $ 1,333,000 [6],[10]  
Cost 1,734,000 [2],[4],[18] 873,000 [4],[5],[9],[11],[12],[18],[19] 1,281,000 [1],[6],[10]  
Fair Value $ 1,728,000 [2],[4],[18] $ 823,000 [4],[5],[11],[12],[18],[19] $ 1,310,000 [6],[10]  
Percentage of Net Assets 0.12% [2],[4],[18] 0.06% [4],[5],[11],[12],[18],[19] 0.11% [6],[10] 0.12% [2],[4],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,697,000  
Fair Value     $ (13,000)  
Investment, Identifier [Axis]: AWP Group Holdings, Inc.        
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 104,000    
Fair Value   $ (3,000)    
Investment, Identifier [Axis]: AWP Group Holdings, Inc. 1        
Variable interest rate 5.50% [3],[13],[14] 4.75% [5],[16] 4.75% [6],[21] 5.50% [3],[13],[14]
Interest Rate 10.99% [3],[13],[14] 9.38% [5],[16] 5.75% [6],[21],[22] 10.99% [3],[13],[14]
Par Amount $ 6,168,000 [3],[13],[14] $ 1,021,000 [5],[16] $ 899,000 [6],[21]  
Cost 5,927,000 [3],[13],[14] 1,010,000 [5],[16] 888,000 [1],[6],[21]  
Fair Value $ 5,928,000 [3],[13],[14] $ 991,000 [5],[16] $ 899,000 [6],[21]  
Percentage of Net Assets 0.40% [3],[13],[14] 0.07% [5],[16] 0.08% [6],[21] 0.40% [3],[13],[14]
Unused Fee Rate 1.00%   1.00%  
Unfunded Commitment $ 1,579,000   $ 132,000  
Fair Value $ (16,000)      
Investment, Identifier [Axis]: AWP Group Holdings, Inc. 2        
Variable interest rate 5.50% [3],[14],[15] 4.75% [5] 4.75% [6],[10] 5.50% [3],[14],[15]
Interest Rate 10.99% [3],[14],[15] 9.41% [5] 5.75% [6],[10],[22] 10.99% [3],[14],[15]
Par Amount $ 79,000 [3],[14],[15] $ 131,000 [5] $ 132,000 [6],[10]  
Cost 62,000 [3],[14],[15] 130,000 [5] 129,000 [1],[6],[10]  
Fair Value $ 62,000 [3],[14],[15] $ 127,000 [5] $ 132,000 [6],[10]  
Percentage of Net Assets   0.01% [5] 0.01% [6],[10]  
Unused Fee Rate 0.50%   0.50%  
Unfunded Commitment $ 470,000   $ 114,000  
Fair Value $ (8,000)      
Investment, Identifier [Axis]: AWP Group Holdings, Inc. 3        
Variable interest rate 5.50% [3],[14],[15] 4.75% [5],[11],[15] 4.75% [6],[10] 5.50% [3],[14],[15]
Interest Rate 10.99% [3],[14],[15] 9.41% [5],[11],[15] 5.75% [6],[10],[22] 10.99% [3],[14],[15]
Par Amount $ 320,000 [3],[14],[15] $ 54,000 [5],[11],[15] $ 43,000 [6],[10]  
Cost 306,000 [3],[14],[15] 52,000 [5],[11],[15] 41,000 [1],[6],[10]  
Fair Value $ 306,000 [3],[14],[15] $ 49,000 [5],[11],[15] $ 43,000 [6],[10]  
Percentage of Net Assets 0.02% [3],[14],[15] 0.00% [5],[11] 0.00% [6],[10] 0.02% [3],[14],[15]
Investment, Identifier [Axis]: Abacus Data Holdings, Inc. (AbacusNext)        
Par Amount $ 29,441,000 [14],[23] $ 29,441,000 [4],[24]    
Par Amount, Shares (in shares) | shares   29,441 [5],[25] 29,441,000  
Cost 2,944,000 [14],[20],[23] $ 2,944,000 [1],[4],[5],[24],[25] $ 2,944,000  
Fair Value $ 2,733,000 [14],[23] $ 2,193,000 [4],[5],[24],[25] $ 2,714,000  
Percentage of Net Assets 0.18% [14],[23] 0.16% [4],[5],[24],[25] 0.23% 0.18% [14],[23]
Unused Fee Rate   0.50% 1.00%  
Unfunded Commitment   $ 700,000 $ 3,500,000  
Fair Value   $ (5,000)    
Investment, Identifier [Axis]: Abacus Data Holdings, Inc. (AbacusNext) 1        
Variable interest rate 6.25% [3],[13],[14] 6.25% [3],[5],[13],[14],[16] 6.25% [6],[21] 6.25% [3],[13],[14]
Interest Rate 11.72% [3],[13],[14] 9.99% [3],[5],[13],[14],[16],[22] 7.25% [6],[21],[22] 11.72% [3],[13],[14]
Par Amount $ 18,475,000 [3],[13],[14] $ 18,617,000 [3],[13],[14] $ 18,806,000 [6],[21]  
Par Amount, Shares (in shares) | shares [5],[16]   18,617    
Cost 18,210,000 [3],[13],[14] $ 18,303,000 [1],[3],[5],[13],[14],[16] 18,428,000 [1],[6],[21]  
Fair Value $ 18,475,000 [3],[13],[14] $ 18,479,000 [3],[5],[13],[14],[16] $ 18,806,000 [6],[21]  
Percentage of Net Assets 1.25% [3],[13],[14] 1.32% [3],[5],[13],[14],[16] 1.58% [6],[21] 1.25% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,190,000  
Investment, Identifier [Axis]: Abacus Data Holdings, Inc. (AbacusNext) 2        
Variable interest rate 6.25% [3],[14] 6.25% [3],[5],[14] 6.25% [6],[10] 6.25% [3],[14]
Interest Rate 11.72% [3],[14] 9.99% [3],[5],[14],[22] 7.25% [6],[10],[22] 11.72% [3],[14]
Par Amount [3],[14] $ 1,935,000 $ 1,950,000    
Par Amount, Shares (in shares) | shares [5]   1,950    
Cost 1,923,000 [3],[14] $ 1,935,000 [1],[3],[5],[14] $ (34,000) [1],[6],[10]  
Fair Value [3],[14] $ 1,935,000 $ 1,936,000 [5]    
Percentage of Net Assets 0.13% [3],[14] 0.14% [3],[5],[14] 0.00% [6],[10] 0.13% [3],[14]
Investment, Identifier [Axis]: Abacus Data Holdings, Inc. (AbacusNext) 3        
Variable interest rate 6.25% [3],[14] 6.25% [3],[5],[11],[14],[15] 6.25% [6],[10] 6.25% [3],[14]
Interest Rate 11.72% [3],[14] 9.99% [3],[5],[11],[14],[15],[22] 7.25% [6],[10],[22] 11.72% [3],[14]
Par Amount $ 1,400,000 [3],[14] $ 700,000 [3],[14],[15] $ 210,000 [6],[10]  
Par Amount, Shares (in shares) | shares [5],[11]   700    
Cost 1,381,000 [3],[14] $ 677,000 [1],[3],[5],[11],[14],[15] 181,000 [1],[6],[10]  
Fair Value $ 1,400,000 [3],[14] $ 690,000 [3],[5],[11],[14],[15] $ 210,000 [6],[10]  
Percentage of Net Assets 0.09% [3],[14] 0.05% [3],[5],[11],[14],[15] 0.02% [6],[10] 0.09% [3],[14]
Investment, Identifier [Axis]: Abracon Group Holdings, LLC        
Unused Fee Rate 1.00%      
Unfunded Commitment $ 441,000      
Fair Value $ (59,000)      
Investment, Identifier [Axis]: Abracon Group Holdings, LLC 1        
Variable interest rate [18] 5.75% [14] 5.75% [4]   5.75% [14]
Interest Rate [18] 11.21% [14] 10.48% [4],[7]   11.21% [14]
Par Amount [18] $ 5,787,000 [14] $ 5,534,000 [4]    
Cost [18] 5,693,000 [14] 5,431,000 [4],[9]    
Fair Value [18] $ 5,012,000 [14] $ 5,249,000 [4]    
Percentage of Net Assets [18] 0.34% [14] 0.38% [4]   0.34% [14]
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 1,003,000    
Fair Value   $ (52,000)    
Investment, Identifier [Axis]: Abracon Group Holdings, LLC 2        
Variable interest rate [18] 5.75% [14],[15] 5.75% [4],[12]   5.75% [14],[15]
Interest Rate [18] 11.21% [14],[15] 10.48% [4],[7],[12]   11.21% [14],[15]
Par Amount [14],[15],[18] $ 265,000      
Cost [18] 253,000 [14],[15] $ (9,000) [4],[9],[12]    
Fair Value [18] $ 170,000 [14],[15] $ (51,000) [4],[12]    
Percentage of Net Assets 0.01% [14],[15],[18] 0.00%   0.01% [14],[15],[18]
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 401,000    
Fair Value   $ (21,000)    
Investment, Identifier [Axis]: Abracon Group Holdings, LLC 3        
Variable interest rate [18] 5.75% [14] 5.75% [4],[12]   5.75% [14]
Interest Rate [18] 11.21% [14] 10.48% [4],[7],[12]   11.21% [14]
Par Amount [14],[18] $ 401,000      
Cost [18] 395,000 [14] $ (7,000) [4],[9],[12]    
Fair Value [18] $ 347,000 [14] $ (21,000) [4],[12]    
Percentage of Net Assets 0.02% [14],[18] 0.00%   0.02% [14],[18]
Investment, Identifier [Axis]: Advarra Holdings, Inc.        
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 41,000 $ 41,000    
Fair Value $ (1,000) $ (2,000)    
Investment, Identifier [Axis]: Advarra Holdings, Inc. 1        
Variable interest rate 5.25% [14],[26] 5.75%   5.25% [14],[26]
Interest Rate 10.57% [14],[26] 10.15%   10.57% [14],[26]
Par Amount $ 455,000 [14],[26] $ 459,000    
Cost 448,000 [14],[26] 451,000    
Fair Value $ 446,000 [14],[26] $ 434,000    
Percentage of Net Assets 0.03% [14],[26] 0.03%   0.03% [14],[26]
Investment, Identifier [Axis]: Advarra Holdings, Inc. 2        
Variable interest rate [15] 5.25% [14],[26] 5.75%   5.25% [14],[26]
Interest Rate [15] 10.57% [14],[26] 10.15%   10.57% [14],[26]
Fair Value [15] $ (1,000) [14],[26] $ (2,000)    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Alert Media, Inc.        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 3,043,000 $ 1,750,000 $ 1,750,000  
Fair Value $ (62,000) $ (58,000) $ (43,000)  
Investment, Identifier [Axis]: Alert Media, Inc. 1        
Variable interest rate 7.75% [3],[13],[14] 5.00% [3],[4],[5],[13],[16] 5.00% [6],[21] 7.75% [3],[13],[14]
Interest rate, PIK [3],[13],[14] 6.75%     6.75%
Interest Rate 11.56% [3],[13],[14],[27] 9.26% [3],[4],[5],[13],[16] 6.00% [6],[21] 11.56% [3],[13],[14],[27]
Par Amount $ 19,127,000 [3],[13],[14] $ 14,000,000 [3],[4],[5],[13],[16] $ 14,000,000 [6],[21]  
Cost 18,877,000 [3],[13],[14],[20] 13,842,000 [3],[4],[5],[13],[16],[20] 13,811,000 [6],[21]  
Fair Value $ 18,775,000 [3],[13],[14] $ 13,534,000 [3],[4],[5],[13],[16] $ 13,657,000 [6],[21]  
Percentage of Net Assets 1.27% [3],[13],[14] 0.97% [3],[4],[5],[13],[16] 1.15% [6],[21] 1.27% [3],[13],[14]
Investment, Identifier [Axis]: Alert Media, Inc. 2        
Variable interest rate 7.75% [3],[14],[15] 5.00% [3],[4],[5],[11],[12] 5.00% [6],[10] 7.75% [3],[14],[15]
Interest rate, PIK [3],[14],[15] 6.75%     6.75%
Interest Rate 11.56% [3],[14],[15],[27] 9.26% [3],[4],[5],[11],[12] 6.00% [6],[10] 11.56% [3],[14],[15],[27]
Cost $ (41,000) [3],[14],[15],[20] $ (17,000) [3],[4],[5],[11],[12],[20] $ (22,000) [6],[10]  
Fair Value (62,000) [3],[14],[15] $ (58,000) [3],[4],[5],[11],[12] $ (43,000) [6],[10]  
Percentage of Net Assets   0.00% [5],[11] 0.00% [6],[10]  
Investment, Identifier [Axis]: Amerilife Holdings, LLC        
Par Amount 908,000 [14],[23] $ 873,000 [17],[24]    
Par Amount, Shares (in shares) | shares [5],[25]   873    
Cost 25,000 [14],[20],[23] $ 24,000 [1],[5],[17],[24],[25]    
Fair Value $ 33,000 [14],[23] $ 24,000 [5],[17],[24],[25]    
Percentage of Net Assets [17],[24]   0.00%    
Investment, Identifier [Axis]: Amerilife Holdings, LLC 1        
Variable interest rate 5.75% [14],[18] 5.75% [5],[19]   5.75% [14],[18]
Interest Rate 11.08% [14],[18] 9.58% [5],[19],[22]   11.08% [14],[18]
Par Amount $ 2,029,000 [14],[18] $ 2,044,000 [5],[19]    
Cost 1,993,000 [14],[18] 2,005,000 [1],[5],[19]    
Fair Value $ 1,972,000 [14],[18] $ 2,005,000 [5],[19]    
Percentage of Net Assets 0.13% [14],[18] 0.14% [5],[19]   0.13% [14],[18]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 292,000 $ 292,000    
Fair Value $ (8,000) $ (5,000)    
Investment, Identifier [Axis]: Amerilife Holdings, LLC 2        
Variable interest rate [15] 5.75% [14],[18] 5.75% [5],[11],[19]   5.75% [14],[18]
Interest Rate [15] 11.08% [14],[18] 10.15% [5],[11],[19],[22]   11.08% [14],[18]
Par Amount [15] $ 579,000 [14],[18] $ 583,000 [5],[11],[19]    
Cost [15] 566,000 [14],[18] 569,000 [1],[5],[11],[19]    
Fair Value [15] $ 554,000 [14],[18] $ 569,000 [5],[11],[19]    
Percentage of Net Assets [15] 0.04% [14],[18] 0.04% [5],[11],[19]   0.04% [14],[18]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 364,000 $ 437,000    
Fair Value $ (10,000) $ (8,000)    
Investment, Identifier [Axis]: Amerilife Holdings, LLC 3        
Variable interest rate [15] 5.75% [14],[18] 5.75% [5],[11],[19]   5.75% [14],[18]
Interest Rate [15] 11.08% [14],[18] 10.15% [5],[11],[19],[22]   11.08% [14],[18]
Par Amount [14],[15],[18] $ 73,000      
Cost [15] 66,000 [14],[18] $ (8,000) [1],[5],[11],[19]    
Fair Value [15] $ 61,000 [14],[18] $ (8,000) [5],[11],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Anaplan, Inc.        
Variable interest rate [18] 6.50% [14] 6.50% [4],[5],[19]   6.50% [14]
Interest Rate [18] 11.82% [14],[27] 10.82% [4],[5],[19]   11.82% [14],[27]
Par Amount [18] $ 24,000,000 [14] $ 24,000,000 [4],[5],[19]    
Cost [18],[20] 23,584,000 [14] 23,546,000 [4],[5],[19]    
Fair Value [18] $ 24,000,000 [14] $ 23,578,000 [4],[5],[19]    
Percentage of Net Assets [18] 1.62% [14] 1.69% [4],[5],[19]   1.62% [14]
Investment, Identifier [Axis]: Answer Acquisition, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 400,000 $ 833,000    
Fair Value $ (7,000) $ (35,000)    
Investment, Identifier [Axis]: Answer Acquisition, LLC 1        
Variable interest rate 5.75% [3],[14] 5.50% [5] 6.00% [6] 5.75% [3],[14]
Interest Rate 11.29% [3],[14] 10.23% [5] 7.00% [6],[22] 11.29% [3],[14]
Par Amount $ 10,638,000 [3],[14] $ 10,719,000 [5] $ 10,827,000 [6]  
Cost 10,489,000 [3],[14] 10,541,000 [5] 10,611,000 [1],[6]  
Fair Value $ 10,450,000 [3],[14] $ 10,265,000 [5] $ 10,611,000 [6]  
Percentage of Net Assets 0.71% [3],[14] 0.73% [5] 0.89% [6] 0.71% [3],[14]
Investment, Identifier [Axis]: Answer Acquisition, LLC 2        
Variable interest rate 5.75% [3],[14],[15] 5.50% [5],[11],[15] 6.00% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.29% [3],[14],[15] 10.23% [5],[11],[15] 7.00% [6],[10],[22] 11.29% [3],[14],[15]
Par Amount [3],[14],[15] $ 433,000      
Cost 422,000 [3],[14],[15] $ (13,000) [5],[11],[15] $ (16,000) [1],[6],[10]  
Fair Value $ 418,000 [3],[14],[15] $ (35,000) [5],[11],[15] $ (16,000) [6],[10]  
Percentage of Net Assets 0.03% [3],[14],[15] 0.00% [5],[11] 0.00% [6],[10] 0.03% [3],[14],[15]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 833,000  
Fair Value     $ (17,000)  
Investment, Identifier [Axis]: Apex Service Partners, LLC 1        
Variable interest rate [3],[14] 5.50%     5.50%
Interest Rate [3],[14] 10.90%     10.90%
Par Amount [3],[14] $ 8,251,000      
Cost [3],[14] 7,884,000      
Fair Value [3],[14] $ 7,899,000      
Percentage of Net Assets [3],[14] 0.53%     0.53%
Investment, Identifier [Axis]: Apex Service Partners, LLC 2        
Variable interest rate [3],[14] 5.50%     5.50%
Interest Rate [3],[14] 10.90%     10.90%
Par Amount [3],[14] $ 8,251,000      
Cost [3],[14] 7,873,000      
Fair Value [3],[14] $ 7,899,000      
Percentage of Net Assets [3],[14] 0.53%     0.53%
Investment, Identifier [Axis]: Appfire Technologies, LLC 1        
Variable interest rate 5.50% [3],[14] 5.50% [3],[4],[5] 5.50% [6] 5.50% [3],[14]
Interest Rate 11.02% [3],[14],[27] 9.92% [3],[4],[5] 6.50% [6] 11.02% [3],[14],[27]
Par Amount $ 18,332,000 [3],[14] $ 14,617,000 [3],[4],[5] $ 4,663,000 [6]  
Cost 18,238,000 [3],[14],[20] 14,549,000 [3],[4],[5],[20] 4,643,000 [6]  
Fair Value $ 17,942,000 [3],[14] $ 14,063,000 [3],[4],[5] $ 4,663,000 [6]  
Percentage of Net Assets 1.21% [3],[14] 1.01% [3],[4],[5] 0.39% [6] 1.21% [3],[14]
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 1,154,000 $ 1,674,000    
Fair Value $ (25,000) $ (63,000)    
Investment, Identifier [Axis]: Appfire Technologies, LLC 2        
Variable interest rate 5.50% [3],[14],[15] 5.50% [3],[4],[5],[11],[12] 5.50% [6],[10] 5.50% [3],[14],[15]
Interest Rate 11.02% [3],[14],[15],[27] 9.92% [3],[4],[5],[11],[12] 6.50% [6],[10] 11.02% [3],[14],[15],[27]
Par Amount [3] $ 311,000 [14],[15] $ 3,696,000 [4],[5],[11],[12]    
Cost 302,000 [3],[14],[15],[20] 3,653,000 [3],[4],[5],[11],[12],[20] $ (59,000) [6],[10]  
Fair Value [3] $ 280,000 [14],[15] $ 3,491,000 [4],[5],[11],[12]    
Percentage of Net Assets 0.02% [3],[14],[15] 0.25% [3],[4],[5],[11],[12] 0.00% [6],[10] 0.02% [3],[14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 167,000 $ 157,000    
Fair Value $ (4,000) $ (6,000)    
Investment, Identifier [Axis]: Appfire Technologies, LLC 3        
Variable interest rate [3] 5.50% [14],[15] 5.50% [2],[4],[5],[11]   5.50% [14],[15]
Interest Rate [3] 11.02% [14],[15],[27] 9.92% [2],[4],[5],[11]   11.02% [14],[15],[27]
Par Amount [2],[3],[4],[5],[11]   $ 10,000    
Cost [3],[20] $ (2,000) [14],[15] 7,000 [2],[4],[5],[11]    
Fair Value [3] $ (3,000) [14],[15] $ 3,000 [2],[4],[5],[11]    
Percentage of Net Assets [5],[11]   0.00%    
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 13,525,000  
Investment, Identifier [Axis]: Applitools, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 433,000 $ 433,000    
Fair Value $ (13,000) $ (7,000)    
Investment, Identifier [Axis]: Applitools, Inc. 1        
Variable interest rate [18] 6.25% [14],[28] 6.25% [4],[29],[30]   6.25% [14],[28]
Interest Rate [18] 11.35% [14],[28] 10.57% [4],[7],[29],[30]   11.35% [14],[28]
Par Amount [18] $ 3,481,000 [14],[28] $ 3,200,000 [4],[29],[30]    
Cost [18] 3,437,000 [14],[28] 3,143,000 [4],[9],[29],[30]    
Fair Value [18] $ 3,377,000 [14],[28] $ 3,145,000 [4],[29],[30]    
Percentage of Net Assets [18] 0.23% [14],[28] 0.23% [4],[29],[30]   0.23% [14],[28]
Investment, Identifier [Axis]: Applitools, Inc. 2        
Variable interest rate [18] 6.25% [14],[15],[28] 6.25% [4],[12],[29],[30]   6.25% [14],[15],[28]
Interest Rate [18] 11.35% [14],[15],[28] 10.57% [4],[7],[12],[29],[30]   11.35% [14],[15],[28]
Cost [18] $ (7,000) [14],[15],[28] $ (8,000) [4],[9],[12],[29],[30]    
Fair Value [18] $ (13,000) [14],[15],[28] $ (7,000) [4],[12],[29],[30]    
Percentage of Net Assets [29]   0.00%    
Investment, Identifier [Axis]: Aptean, Inc.        
Variable interest rate 7.00% [18] 7.00% [18],[19] 7.00% [6],[19] 7.00% [18]
Interest Rate 12.42% [18],[27] 11.74% [18],[19],[22] 7.75% [6],[8],[19] 12.42% [18],[27]
Par Amount $ 5,950,000 [18] $ 5,950,000 [18],[19] $ 5,950,000 [6],[19]  
Cost 5,950,000 [18],[20] 5,950,000 [1],[18],[19] 5,950,000 [1],[6],[19]  
Fair Value $ 5,533,000 [18] $ 5,459,000 [18],[19] $ 5,950,000 [6],[19]  
Percentage of Net Assets 0.37% [18] 0.39% [18],[19] 0.50% [6],[19] 0.37% [18]
Investment, Identifier [Axis]: Assembly Intermediate, LLC 1        
Variable interest rate 6.00% [3],[14] 6.50% [3],[4],[5] 7.00% [6] 6.00% [3],[14]
Interest Rate 11.49% [3],[14] 11.23% [3],[4],[5],[7] 8.00% [6] 11.49% [3],[14]
Par Amount $ 20,741,000 [3],[14] $ 20,741,000 [3],[4],[5] $ 20,741,000 [6]  
Cost 20,436,000 [3],[14] 20,393,000 [3],[4],[5],[9] 20,337,000 [6]  
Fair Value $ 20,216,000 [3],[14] $ 19,944,000 [3],[4],[5] $ 20,337,000 [6]  
Percentage of Net Assets 1.36% [3],[14] 1.43% [3],[4],[5] 1.71% [6] 1.36% [3],[14]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 2,281,000 $ 2,281,000 $ 3,941,000  
Fair Value $ (58,000) $ (88,000) $ (47,000)  
Investment, Identifier [Axis]: Assembly Intermediate, LLC 2        
Variable interest rate 6.00% [3],[14],[15] 6.50% [3],[4],[5],[11],[12] 7.00% [6],[10] 6.00% [3],[14],[15]
Interest Rate 11.49% [3],[14],[15] 11.23% [3],[4],[5],[7],[11],[12] 8.00% [6],[10] 11.49% [3],[14],[15]
Par Amount $ 2,904,000 [3],[14],[15] $ 2,904,000 [3],[4],[5],[11],[12] $ 1,244,000 [6],[10]  
Cost 2,846,000 [3],[14],[15] 2,836,000 [3],[4],[5],[9],[11],[12] 1,182,000 [6],[10]  
Fair Value $ 2,772,000 [3],[14],[15] $ 2,705,000 [3],[4],[5],[11],[12] $ 1,182,000 [6],[10]  
Percentage of Net Assets 0.19% [3],[14],[15] 0.19% [3],[4],[5],[11],[12] 0.10% [6],[10] 0.19% [3],[14],[15]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 2,074,000 $ 1,244,000 $ 2,074,000  
Fair Value $ (52,000) $ (48,000) $ (40,000)  
Investment, Identifier [Axis]: Assembly Intermediate, LLC 3        
Variable interest rate 6.00% [3],[14],[15] 6.50% [3],[4],[5],[11],[12] 7.00% [6],[10] 6.00% [3],[14],[15]
Interest Rate 11.49% [3],[14],[15] 11.23% [3],[4],[5],[7],[11],[12] 8.00% [6],[10] 11.49% [3],[14],[15]
Par Amount [3],[4],[5],[11],[12]   $ 830,000    
Cost $ (28,000) [3],[14],[15] 796,000 [3],[4],[5],[9],[11],[12] $ (40,000) [6],[10]  
Fair Value $ (52,000) [3],[14],[15] $ 750,000 [3],[4],[5],[11],[12] $ (40,000) [6],[10]  
Percentage of Net Assets   0.05% [3],[4],[5],[11],[12] 0.00% [6],[10]  
Investment, Identifier [Axis]: Associations, Inc. 1        
Variable interest rate 6.50% [3],[13],[14] 6.50% [3],[5],[13],[14],[16] 4.00% [6],[21] 6.50% [3],[13],[14]
Interest rate, PIK 2.50% [3],[13],[14] 2.50% [3],[5],[13],[14],[16] 2.50% [6],[21] 2.50% [3],[13],[14]
Interest Rate 12.03% [3],[13],[14] 10.36% [3],[5],[13],[14],[16],[22] 7.50% [6],[21] 12.03% [3],[13],[14]
Par Amount $ 16,570,000 [3],[13],[14] $ 30,525,000 [3],[13],[14] $ 15,853,000 [6],[21]  
Par Amount, Shares (in shares) | shares [5],[16]   30,525    
Cost 16,464,000 [3],[13],[14] $ 30,293,000 [1],[3],[5],[13],[14],[16] 15,706,000 [6],[21]  
Fair Value $ 16,321,000 [3],[13],[14] $ 29,139,000 [3],[5],[13],[14],[16] $ 15,853,000 [6],[21]  
Percentage of Net Assets 1.10% [3],[13],[14] 2.09% [3],[5],[13],[14],[16] 1.33% [6],[21] 1.10% [3],[13],[14]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 1,582,000 $ 6,694,000 $ 1,860,000  
Fair Value $ (24,000) $ (304,000)    
Investment, Identifier [Axis]: Associations, Inc. 2        
Variable interest rate 6.50% [3],[14],[15] 6.50% [3],[5],[11],[14],[15] 4.00% [6],[10] 6.50% [3],[14],[15]
Interest rate, PIK 2.50% [3],[14],[15] 2.50% [3],[5],[11],[14],[15] 2.50% [6],[10] 2.50% [3],[14],[15]
Interest Rate 12.03% [3],[14],[15] 10.36% [3],[5],[11],[14],[15],[22] 7.50% [6],[10] 12.03% [3],[14],[15]
Par Amount $ 20,216,000 [3],[14],[15] $ 546,000 [3],[14],[15] $ 2,723,000 [6],[10]  
Par Amount, Shares (in shares) | shares [5],[11]   546    
Cost 20,068,000 [3],[14],[15] $ 481,000 [1],[3],[5],[11],[14],[15] 2,698,000 [6],[10]  
Fair Value $ 19,889,000 [3],[14],[15] $ 218,000 [3],[5],[11],[14],[15] $ 2,723,000 [6],[10]  
Percentage of Net Assets 1.34% [3],[14],[15] 0.02% [3],[5],[11],[14],[15] 0.23% [6],[10] 1.34% [3],[14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,860,000 $ 1,860,000    
Fair Value $ (28,000) $ (84,000)    
Investment, Identifier [Axis]: Associations, Inc. 3        
Variable interest rate 6.50% [3],[14],[15] 6.50% [3],[5],[11],[14],[15] 6.50% [6],[10] 6.50% [3],[14],[15]
Interest rate, PIK [3],[14],[15] 2.50% 2.50% [5],[11]   2.50%
Interest Rate 12.03% [3],[14],[15] 10.36% [3],[5],[11],[14],[15],[22] 7.50% [6],[10] 12.03% [3],[14],[15]
Par Amount [6],[10]     $ 11,187,000  
Par Amount, Shares (in shares) | shares [5],[11]   0    
Cost $ (12,000) [3],[14],[15] $ (14,000) [1],[3],[5],[11],[14],[15] 11,083,000 [6],[10]  
Fair Value $ (28,000) [3],[14],[15] $ (84,000) [3],[5],[11],[14],[15] $ 11,187,000 [6],[10]  
Percentage of Net Assets   (0.01%) [3],[5],[11],[14],[15] 0.94% [6],[10]  
Investment, Identifier [Axis]: Associations, Inc. 4        
Variable interest rate [6],[10]     6.50%  
Interest Rate [6],[10]     7.50%  
Cost [6],[10]     $ (17,000)  
Percentage of Net Assets [6],[10]     0.00%  
Investment, Identifier [Axis]: Atlas Purchaser, Inc.        
Variable interest rate   5.25% 5.25%  
Interest Rate   9.81% 6.00%  
Par Amount   $ 8,922,000 $ 17,413,000  
Cost   8,778,000 17,090,000  
Fair Value   $ 6,225,000 $ 17,064,000  
Percentage of Net Assets   0.45% 1.44%  
Investment, Identifier [Axis]: Atlas Us Finco, Inc.        
Variable interest rate [13],[18] 5.25%     5.25%
Interest Rate [13],[18] 10.88%     10.88%
Par Amount [13],[18] $ 8,854,000      
Cost [13],[18] 8,727,000      
Fair Value [13],[18] $ 6,238,000      
Percentage of Net Assets [13],[18] 0.42%     0.42%
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 186,000 $ 186,000    
Fair Value $ (2,000) $ (6,000)    
Investment, Identifier [Axis]: Atlas Us Finco, Inc. 1        
Variable interest rate [3],[4] 7.25% [28] 7.25% [5],[30]   7.25% [28]
Interest Rate [3],[4] 12.58% [28] 11.48% [5],[7],[30]   12.58% [28]
Par Amount [3],[4] $ 2,009,000 [28] $ 2,009,000 [5],[30]    
Cost [3],[4] 1,953,000 [28] 1,949,000 [5],[9],[30]    
Fair Value [3],[4] $ 1,988,000 [28] $ 1,949,000 [5],[30]    
Percentage of Net Assets [3],[4] 0.13% [28] 0.14% [5],[30]   0.13% [28]
Investment, Identifier [Axis]: Atlas Us Finco, Inc. 2        
Variable interest rate [3],[4] 7.25% [2],[28] 7.25% [5],[11],[12],[30]   7.25% [2],[28]
Interest Rate [3],[4] 12.58% [2],[28] 11.48% [5],[7],[11],[12],[30]   12.58% [2],[28]
Cost [3],[4] $ (5,000) [2],[28] $ (6,000) [5],[9],[11],[12],[30]    
Fair Value [3],[4] $ (2,000) [2],[28] $ (6,000) [5],[11],[12],[30]    
Percentage of Net Assets [5],[11]   0.00%    
Investment, Identifier [Axis]: Avalara, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,130,000 $ 1,071,000    
Fair Value   $ (26,000)    
Investment, Identifier [Axis]: Avalara, Inc. 1        
Variable interest rate [18] 7.25% [14] 7.25% [4],[5],[19]   7.25% [14]
Interest Rate [18] 12.64% [14] 11.83% [4],[5],[7],[19]   12.64% [14]
Par Amount [18] $ 11,302,000 [14] $ 10,712,000 [4],[5],[19]    
Cost [18] 11,061,000 [14] 10,451,000 [4],[5],[9],[19]    
Fair Value [18] $ 11,302,000 [14] $ 10,451,000 [4],[5],[19]    
Percentage of Net Assets [18] 0.76% [14] 0.75% [4],[5],[19]   0.76% [14]
Investment, Identifier [Axis]: Avalara, Inc. 2        
Variable interest rate [18] 7.25% [14],[15] 7.25% [4],[5],[11],[12],[19]   7.25% [14],[15]
Interest Rate [18] 12.64% [14],[15] 11.83% [4],[5],[7],[11],[12],[19]   12.64% [14],[15]
Cost [18] $ (23,000) [14],[15] $ (26,000) [4],[5],[9],[11],[12],[19]    
Fair Value [4],[5],[11],[12],[18],[19]   $ (26,000)    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: BP Purchaser, LLC        
Variable interest rate 5.50% [14],[18] 5.50% [4],[5],[18],[19] 5.50% 5.50% [14],[18]
Interest Rate 11.17% [14],[18] 10.24% [4],[5],[7],[18],[19] 6.25% [8] 11.17% [14],[18]
Par Amount $ 17,205,000 [14],[18] $ 17,336,000 [4],[5],[18],[19] $ 17,467,000  
Cost 16,931,000 [14],[18] 17,031,000 [4],[5],[9],[18],[19] 17,120,000 [1]  
Fair Value $ 16,645,000 [14],[18] $ 16,185,000 [4],[5],[18],[19] $ 17,120,000  
Percentage of Net Assets 1.12% [14],[18] 1.16% [4],[5],[18],[19] 0.10% 1.12% [14],[18]
Investment, Identifier [Axis]: BP Purchaser, LLC 2        
Par Amount [4],[24]   $ 1,233,333,000    
Par Amount, Shares (in shares) | shares [5],[25]   1,233,333    
Cost [1],[4],[5],[24],[25]   $ 1,233,000    
Fair Value [4],[5],[24],[25]   $ 1,468,000    
Percentage of Net Assets [4],[5],[24],[25]   0.11%    
Investment, Identifier [Axis]: BP Purchaser, LLC, Common Equity        
Par Amount [14],[23] $ 1,383,156,000      
Par Amount, Shares (in shares) | shares     1,233,333,000  
Cost 1,378,000 [14],[20],[23]   $ 1,233,000  
Fair Value $ 1,529,000 [14],[23]   $ 1,233,000  
Percentage of Net Assets 0.10% [14],[23]   0.10% 0.10% [14],[23]
Investment, Identifier [Axis]: BPG Holdings IV Corp.        
Variable interest rate [4],[18] 6.00% 6.00% [5],[19]   6.00%
Interest Rate [4],[18] 11.39% 10.54% [5],[7],[19]   11.39%
Par Amount [4],[18] $ 11,676,000 $ 11,765,000 [5],[19]    
Cost [4],[18] 10,979,000 11,001,000 [5],[9],[19]    
Fair Value [4],[18] $ 11,355,000 $ 11,001,000 [5],[19]    
Percentage of Net Assets [4],[18] 0.77% 0.79% [5],[19]   0.77%
Investment, Identifier [Axis]: Bearcat Buyer, Inc.        
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 513,000  
Investment, Identifier [Axis]: Bearcat Buyer, Inc. 1        
Variable interest rate [6],[21]     4.75%  
Interest Rate [6],[8],[21]     5.75%  
Par Amount [6],[21]     $ 6,843,000  
Cost [1],[6],[21]     6,700,000  
Fair Value [6],[21]     $ 6,843,000  
Percentage of Net Assets [6],[21]     0.58%  
Investment, Identifier [Axis]: Bearcat Buyer, Inc. 2        
Variable interest rate [6],[10],[21]     4.75%  
Interest Rate [6],[8],[10],[21]     5.75%  
Par Amount [6],[10],[21]     $ 6,262,000  
Cost [1],[6],[10],[21]     6,122,000  
Fair Value [6],[10],[21]     $ 6,262,000  
Percentage of Net Assets [6],[10],[21]     0.53%  
Investment, Identifier [Axis]: Bottomline Technologies, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 267,000 $ 267,000    
Fair Value $ (1,000) $ (10,000)    
Investment, Identifier [Axis]: Bottomline Technologies, Inc. 1        
Variable interest rate 5.25% [3],[14] 5.50% [4],[5],[18],[19]   5.25% [3],[14]
Interest Rate 10.57% [3],[14],[27] 9.83% [4],[5],[18],[19]   10.57% [3],[14],[27]
Par Amount $ 3,168,000 [3],[14] $ 3,192,000 [4],[5],[18],[19]    
Cost [20] 3,114,000 [3],[14] 3,133,000 [4],[5],[18],[19]    
Fair Value $ 3,155,000 [3],[14] $ 3,070,000 [4],[5],[18],[19]    
Percentage of Net Assets 0.21% [3],[14] 0.22% [4],[5],[18],[19]   0.21% [3],[14]
Investment, Identifier [Axis]: Bottomline Technologies, Inc. 2        
Variable interest rate 5.00% [3],[14],[15] 5.50% [2],[4],[5],[11],[18],[19]   5.00% [3],[14],[15]
Interest Rate 10.32% [3],[14],[15],[27] 9.83% [2],[4],[5],[11],[18],[19]   10.32% [3],[14],[15],[27]
Cost [20] $ (4,000) [3],[14],[15] $ (5,000) [2],[4],[5],[11],[18],[19]    
Fair Value $ (1,000) [3],[14],[15] $ (10,000) [2],[4],[5],[11],[18],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Bridgepointe Technologies, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 4,426,000 $ 10,116,000    
Fair Value $ (128,000) $ (403,000)    
Investment, Identifier [Axis]: Bridgepointe Technologies, LLC 1        
Variable interest rate [3],[14] 6.50% 6.50% [5]   6.50%
Interest Rate [3],[14] 12.04% 11.23% [5],[22]   12.04%
Par Amount [3],[14] $ 17,273,000 $ 15,174,000    
Par Amount, Shares (in shares) | shares [5]   15,174    
Cost [3],[14] 16,743,000 $ 14,570,000 [1],[5]    
Fair Value [3],[14] $ 16,839,000 $ 14,570,000 [5]    
Percentage of Net Assets [3],[14] 1.14% 1.04% [5]   1.14%
Investment, Identifier [Axis]: Bridgepointe Technologies, LLC 2        
Variable interest rate [3],[14],[15] 6.50% 6.50% [5],[11]   6.50%
Interest Rate [3],[14],[15] 12.04% 11.23% [5],[11],[22]   12.04%
Par Amount [3],[14],[15] $ 10,116,000      
Par Amount, Shares (in shares) | shares [5],[11]   0    
Cost [3],[14],[15] 9,579,000 $ (403,000) [1],[5],[11]    
Fair Value [3],[14],[15] $ 9,696,000 $ (403,000) [5],[11]    
Percentage of Net Assets [3],[14],[15] 0.65% (0.03%) [5],[11]   0.65%
Investment, Identifier [Axis]: Bullhorn, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 593,000 $ 320,000    
Fair Value $ (3,000) $ (10,000)    
Investment, Identifier [Axis]: Bullhorn, Inc. 1        
Variable interest rate 5.75% [3],[13],[14] 5.75% [3],[5],[13],[14],[16] 5.75% [6],[21] 5.75% [3],[13],[14]
Interest Rate 11.24% [3],[13],[14] 10.48% [3],[5],[13],[14],[16],[22] 6.75% [6],[21],[22] 11.24% [3],[13],[14]
Par Amount $ 15,499,000 [3],[13],[14] $ 12,948,000 [3],[13],[14] $ 9,675,000 [6],[21]  
Par Amount, Shares (in shares) | shares [5],[16]   12,948    
Cost 15,409,000 [3],[13],[14] $ 12,847,000 [1],[3],[5],[13],[14],[16] 9,573,000 [1],[6],[21]  
Fair Value $ 15,408,000 [3],[13],[14] $ 12,571,000 [3],[5],[13],[14],[16] $ 9,629,000 [6],[21]  
Percentage of Net Assets 1.04% [3],[13],[14] 0.90% [3],[5],[13],[14],[16] 0.81% [6],[21] 1.04% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 5,172,000  
Fair Value     $ (25,000)  
Investment, Identifier [Axis]: Bullhorn, Inc. 2        
Variable interest rate 5.75% [3],[14] 5.75% [3],[5],[14] 5.75% [6],[10] 5.75% [3],[14]
Interest Rate 11.24% [3],[14] 10.48% [3],[5],[14],[22] 6.75% [6],[10],[22] 11.24% [3],[14]
Par Amount [3],[14] $ 51,000 $ 2,723,000    
Par Amount, Shares (in shares) | shares [5]   2,723    
Cost 50,000 [3],[14] $ 2,712,000 [1],[3],[5],[14] $ (25,000) [1],[6],[10]  
Fair Value $ 50,000 [3],[14] $ 2,643,000 [3],[5],[14] $ (25,000) [6],[10]  
Percentage of Net Assets   0.19% [3],[5],[14] 0.00% [6],[10]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 554,000  
Fair Value     $ (3,000)  
Investment, Identifier [Axis]: Bullhorn, Inc. 3        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[5],[11],[14],[15] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.24% [3],[14],[15] 10.48% [3],[5],[11],[14],[15],[22] 6.75% [6],[10],[22] 11.24% [3],[14],[15]
Par Amount [3],[14],[15]   $ 273,000    
Par Amount, Shares (in shares) | shares [5],[11]   273    
Cost $ (4,000) [3],[14],[15] $ 267,000 [1],[3],[5],[11],[14],[15] $ (6,000) [1],[6],[10]  
Fair Value $ (3,000) [3],[14],[15] $ 256,000 [3],[5],[11],[14],[15] $ (3,000) [6],[10]  
Percentage of Net Assets   0.02% [3],[5],[11],[14],[15] 0.00% [6],[10]  
Investment, Identifier [Axis]: CC SAG Holdings Corp. (Spectrum Automotive) 1        
Variable interest rate [6],[19],[21]     5.75%  
Interest Rate [6],[19],[21],[22]     6.50%  
Par Amount [6],[19],[21]     $ 23,890,000  
Cost [1],[6],[19],[21]     23,553,000  
Fair Value [6],[19],[21]     $ 23,613,000  
Percentage of Net Assets [6],[19],[21]     1.99%  
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 4,437,000  
Fair Value     $ (52,000)  
Investment, Identifier [Axis]: CC SAG Holdings Corp. (Spectrum Automotive) 2        
Variable interest rate [6],[10],[19]     5.75%  
Interest Rate [6],[10],[19],[22]     6.50%  
Par Amount [6],[10],[19]     $ 2,167,000  
Cost [1],[6],[10],[19]     2,105,000  
Fair Value [6],[10],[19]     $ 2,091,000  
Percentage of Net Assets [6],[10],[19]     0.18%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 881,000  
Fair Value     $ (10,000)  
Investment, Identifier [Axis]: CC SAG Holdings Corp. (Spectrum Automotive) 3        
Variable interest rate [6],[10],[19]     5.75%  
Interest Rate [6],[10],[19],[22]     6.50%  
Cost [1],[6],[10],[19]     $ (12,000)  
Fair Value [6],[10],[19]     $ (10,000)  
Percentage of Net Assets [6],[10],[19]     0.00%  
Investment, Identifier [Axis]: CLEO Communications Holding, LLC        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 12,502,000 $ 12,502,000 $ 12,502,000  
Fair Value $ (230,000) $ (445,000) $ (198,000)  
Investment, Identifier [Axis]: CLEO Communications Holding, LLC 1        
Variable interest rate 6.50% [3],[13],[14] 6.50% [3],[4],[5],[13],[16] 6.75% [6],[21] 6.50% [3],[13],[14]
Interest Rate 11.93% [3],[13],[14],[27] 10.74% [3],[4],[5],[13],[16] 7.75% [6],[21] 11.93% [3],[13],[14],[27]
Par Amount $ 39,998,000 [3],[13],[14] $ 39,998,000 [3],[4],[5],[13],[16] $ 39,998,000 [6],[21]  
Cost 39,728,000 [3],[13],[14],[20] 39,685,000 [3],[4],[5],[13],[16],[20] 39,628,000 [6],[21]  
Fair Value $ 39,262,000 [3],[13],[14] $ 38,574,000 [3],[4],[5],[13],[16] $ 39,366,000 [6],[21]  
Percentage of Net Assets 2.65% [3],[13],[14] 2.76% [3],[4],[5],[13],[16] 3.31% [6],[21] 2.65% [3],[13],[14]
Investment, Identifier [Axis]: CLEO Communications Holding, LLC 2        
Variable interest rate 6.50% [3],[14],[15] 6.50% [2],[3],[4],[5],[11] 6.75% [6],[10] 6.50% [3],[14],[15]
Interest Rate 11.93% [3],[14],[15],[27] 10.74% [2],[3],[4],[5],[11] 7.75% [6],[10] 11.93% [3],[14],[15],[27]
Cost $ (77,000) [3],[14],[15],[20] $ (92,000) [2],[3],[4],[5],[11],[20] $ (113,000) [6],[10]  
Fair Value $ (230,000) [3],[14],[15] $ (445,000) [2],[3],[4],[5],[11] $ (197,000) [6],[10]  
Percentage of Net Assets (0.02%) [3],[14],[15] (0.03%) [2],[3],[4],[5],[11] (0.02%) [6],[10] (0.02%) [3],[14],[15]
Investment, Identifier [Axis]: CSC Thrive Holdings, LP (Thrive Networks)        
Par Amount [4],[24]   $ 160,016,000    
Par Amount, Shares (in shares) | shares   160,016 [5],[25] 160,016,000  
Cost   $ 411,000 [1],[4],[5],[24],[25] $ 411,000  
Fair Value   $ 640,000 [4],[5],[24],[25] $ 531,000  
Percentage of Net Assets   0.05% [4],[5],[24],[25] 0.04%  
Investment, Identifier [Axis]: Caerus US 1, Inc. 1        
Variable interest rate [14],[18],[28] 5.75% 5.75% [5],[19],[29]   5.75%
Interest Rate [14],[18],[28] 11.14% 9.83% [5],[19],[22],[29]   11.14%
Par Amount [14],[18],[28] $ 11,066,000 $ 11,121,000    
Par Amount, Shares (in shares) | shares [5],[19],[29]   11,121    
Cost [14],[18],[28] 10,867,000 $ 10,903,000 [1],[5],[19],[29]    
Fair Value [14],[18],[28] $ 11,066,000 $ 10,903,000 [5],[19],[29]    
Percentage of Net Assets [14],[18],[28] 0.75% 0.78% [5],[19],[29]   0.75%
Unused Fee Rate 1.00% 0.00%    
Unfunded Commitment $ 893,000 $ 1,608,000    
Fair Value   $ (16,000)    
Investment, Identifier [Axis]: Caerus US 1, Inc. 2        
Variable interest rate [14],[15],[18],[28] 5.75% 5.75% [5],[11],[19],[29]   5.75%
Interest Rate [14],[15],[18],[28] 11.14% 9.83% [5],[11],[19],[22],[29]   11.14%
Par Amount [14],[15],[18],[28] $ 715,000      
Par Amount, Shares (in shares) | shares [5],[11],[19],[29]   0    
Cost [14],[15],[18],[28] 694,000 $ (16,000) [1],[5],[11],[19],[29]    
Fair Value [14],[15],[18],[28] $ 715,000 $ (16,000) [5],[11],[19],[29]    
Percentage of Net Assets 0.05% [14],[15],[18],[28] 0.00% [5],[11],[19],[29]   0.05% [14],[15],[18],[28]
Unused Fee Rate 0.25% 0.50%    
Unfunded Commitment $ 863,000 $ 878,000    
Fair Value   $ (17,000)    
Investment, Identifier [Axis]: Caerus US 1, Inc. 3        
Variable interest rate [14],[15],[18],[28] 5.75% 5.75% [5],[11],[19],[29]   5.75%
Interest Rate [14],[15],[18],[28] 11.14% 9.83% [5],[11],[19],[22],[29]   11.14%
Par Amount [14],[15],[18],[28] $ 307,000 $ 293,000    
Par Amount, Shares (in shares) | shares [5],[11],[19],[29]   293    
Cost [14],[15],[18],[28] 287,000 $ 270,000 [1],[5],[11],[19],[29]    
Fair Value [14],[15],[18],[28] $ 307,000 $ 270,000 [5],[11],[19],[29]    
Percentage of Net Assets [14],[15],[18],[28] 0.02% 0.02% [5],[11],[19],[29]   0.02%
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc.        
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 313,000  
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. 1        
Variable interest rate [6],[21]     4.75%  
Interest Rate [6],[8],[21]     5.75%  
Par Amount [6],[21]     $ 3,460,000  
Cost [1],[6],[21]     3,433,000  
Fair Value [6],[21]     $ 3,460,000  
Percentage of Net Assets [6],[21]     0.29%  
Investment, Identifier [Axis]: Capstone Acquisition Holdings, Inc. 2        
Variable interest rate [6],[10]     4.75%  
Interest Rate [6],[8],[10]     5.75%  
Par Amount [6],[10]     $ 194,000  
Cost [1],[6],[10]     191,000  
Fair Value [6],[10]     $ 194,000  
Percentage of Net Assets [6],[10]     0.02%  
Investment, Identifier [Axis]: Catalis Intermediate, Inc.        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 2,778,000      
Fair Value $ (247,000)      
Investment, Identifier [Axis]: Catalis Intermediate, Inc. 1        
Variable interest rate [13],[14],[18] 5.50%     5.50%
Interest Rate [13],[14],[18] 11.04%     11.04%
Par Amount [13],[14],[18] $ 39,457,000      
Cost [13],[14],[18] 38,771,000      
Fair Value [13],[14],[18] $ 35,946,000      
Percentage of Net Assets [13],[14],[18] 2.43%     2.43%
Investment, Identifier [Axis]: Catalis Intermediate, Inc. 2        
Variable interest rate [14],[18] 5.50%     5.50%
Interest Rate [14],[18] 11.04%     11.04%
Par Amount [14],[18] $ 8,878,000      
Cost [14],[18] 8,738,000      
Fair Value [14],[18] $ 8,088,000      
Percentage of Net Assets [14],[18] 0.55%     0.55%
Investment, Identifier [Axis]: Catalis Intermediate, Inc. 3        
Variable interest rate [14],[15],[18] 5.50%     5.50%
Interest Rate [14],[15],[18] 11.04%     11.04%
Par Amount [14],[15],[18] $ 1,460,000      
Cost [14],[15],[18] 1,392,000      
Fair Value [14],[15],[18] $ 1,082,000      
Percentage of Net Assets [14],[15],[18] 0.07%     0.07%
Investment, Identifier [Axis]: Cerity Partners, LLC        
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 5,043,000 $ 12,699,000    
Fair Value   $ (381,000)    
Investment, Identifier [Axis]: Cerity Partners, LLC 1        
Variable interest rate [18] 6.75% [14] 6.75% [4]   6.75% [14]
Interest Rate [18] 12.13% [14] 11.32% [4],[7]   12.13% [14]
Par Amount [18] $ 4,767,000 [14] $ 8,617,000 [4]    
Cost [18] 4,634,000 [14] 8,359,000 [4],[9]    
Fair Value [18] $ 4,767,000 [14] $ 8,359,000 [4]    
Percentage of Net Assets [18] 0.32% [14] 0.60% [4]   0.32% [14]
Investment, Identifier [Axis]: Cerity Partners, LLC 2        
Variable interest rate [18] 6.75% [14],[15] 6.75% [4],[12]   6.75% [14],[15]
Interest Rate [18] 12.13% [14],[15] 11.32% [4],[7],[12]   12.13% [14],[15]
Par Amount [18] $ 1,677,000 [14],[15] $ 454,000 [4],[12]    
Cost [18] 1,497,000 [14],[15] 60,000 [4],[9],[12]    
Fair Value [18] $ 1,677,000 [14],[15] $ 60,000 [4],[12]    
Percentage of Net Assets 0.11% [14],[15],[18] 0.00%   0.11% [14],[15],[18]
Investment, Identifier [Axis]: Chase Intermediate, LLC 1        
Variable interest rate [14],[15] 5.25%     5.25%
Interest Rate [14],[15] 11.00%     11.00%
Cost [14],[15] $ (104,000)      
Fair Value [14],[15] $ (104,000)      
Percentage of Net Assets [14],[15] (0.01%)     (0.01%)
Unused Fee Rate 1.00%      
Unfunded Commitment $ 10,602,000      
Fair Value $ (104,000)      
Investment, Identifier [Axis]: Chase Intermediate, LLC 2        
Variable interest rate [14],[15] 5.25%     5.25%
Interest Rate [14],[15] 11.00%     11.00%
Par Amount [14],[15] $ 177,000      
Cost [14],[15] 166,000      
Fair Value [14],[15] $ 166,000      
Percentage of Net Assets [14],[15] 0.01%     0.01%
Unused Fee Rate 0.38%      
Unfunded Commitment $ 353,000      
Fair Value $ (7,000)      
Investment, Identifier [Axis]: Citrin Cooperman Advisors, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,092,000 $ 12,502,000    
Fair Value $ (22,000) $ (445,000)    
Investment, Identifier [Axis]: Citrin Cooperman Advisors, LLC 1        
Variable interest rate 6.25% [14],[18] 5.00% [5],[14],[18],[19] 5.00% [6],[19] 6.25% [14],[18]
Interest Rate 11.64% [14],[18] 9.21% [5],[14],[18],[19],[22] 5.75% [6],[19],[22] 11.64% [14],[18]
Par Amount $ 23,563,000 [14],[18] $ 20,025,000 [14],[18] $ 20,176,000 [6],[19]  
Par Amount, Shares (in shares) | shares [5],[19]   20,025    
Cost 23,179,000 [14],[18] $ 19,695,000 [1],[5],[14],[18],[19] 19,787,000 [1],[6],[19]  
Fair Value $ 23,091,000 [14],[18] $ 19,428,000 [5],[14],[18],[19] $ 19,787,000 [6],[19]  
Percentage of Net Assets 1.56% [14],[18] 1.39% [5],[14],[18],[19] 1.66% [6],[19] 1.56% [14],[18]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 8,647,000  
Fair Value     $ (83,000)  
Investment, Identifier [Axis]: Citrin Cooperman Advisors, LLC 2        
Variable interest rate 5.75% [14],[15],[18] 5.00% [5],[14],[18],[19] 5.00% [6],[10],[19] 5.75% [14],[15],[18]
Interest Rate 10.79% [14],[15],[18] 9.21% [5],[14],[18],[19],[22] 5.75% [6],[10],[19],[22] 10.79% [14],[15],[18]
Par Amount [14],[18] $ 8,517,000 [15] $ 8,582,000    
Par Amount, Shares (in shares) | shares [5],[19]   8,582    
Cost 8,377,000 [14],[15],[18] $ 8,437,000 [1],[5],[14],[18],[19] $ (83,000) [1],[6],[10],[19]  
Fair Value $ 8,325,000 [14],[15],[18] $ 8,326,000 [5],[14],[18],[19] $ (83,000) [6],[10],[19]  
Percentage of Net Assets 0.56% [14],[15],[18] 0.60% [5],[14],[18],[19] (0.01%) [6],[10],[19] 0.56% [14],[15],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 24,500,000  
Fair Value     $ (469,000)  
Investment, Identifier [Axis]: Citrin Cooperman Advisors, LLC 3        
Variable interest rate [6],[10],[19]     5.00%  
Interest Rate [6],[10],[19],[22]     5.75%  
Cost [1],[6],[10],[19]     $ (469,000)  
Fair Value [6],[10],[19]     $ (469,000)  
Percentage of Net Assets [6],[10],[19]     (0.04%)  
Investment, Identifier [Axis]: Continental Battery Company        
Variable interest rate [3],[4] 6.75% 6.75%   6.75%
Interest Rate [3],[4],[7] 12.04% 11.48%   12.04%
Par Amount [3],[4] $ 6,141,000 $ 6,188,000    
Cost [3],[4],[20] 6,053,000 6,083,000    
Fair Value [3],[4] $ 5,467,000 $ 5,903,000    
Percentage of Net Assets [3],[4] 0.37% 0.42%   0.37%
Investment, Identifier [Axis]: Cordeagle US Finco, Inc.        
Variable interest rate [6],[31]     6.75%  
Interest Rate [6],[31]     7.75%  
Par Amount [6],[31]     $ 18,200,000  
Cost [6],[31]     17,856,000  
Fair Value [6],[31]     $ 18,200,000  
Percentage of Net Assets [6],[31]     1.53%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,800,000  
Investment, Identifier [Axis]: Cordeagle US Finco, Inc. 1        
Variable interest rate [6],[10],[31]     6.75%  
Interest Rate [6],[10],[31]     7.75%  
Cost [6],[10],[31]     $ (52,000)  
Percentage of Net Assets [6],[10],[31]     0.00%  
Investment, Identifier [Axis]: Coupa Holdings, LLC 1        
Variable interest rate [14],[18] 7.50%     7.50%
Interest Rate [14],[18],[27] 12.82%     12.82%
Par Amount [14],[18] $ 2,264,000      
Cost [14],[18],[20] 2,211,000      
Fair Value [14],[18] $ 2,231,000      
Percentage of Net Assets [14],[18] 0.15%     0.15%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 1,085,000      
Fair Value $ (16,000)      
Investment, Identifier [Axis]: Coupa Holdings, LLC 2        
Variable interest rate [14],[15],[18] 7.50%     7.50%
Interest Rate [14],[15],[18],[27] 12.82%     12.82%
Cost [14],[15],[18],[20] $ (12,000)      
Fair Value [14],[15],[18] $ (16,000)      
Unused Fee Rate 0.50%      
Unfunded Commitment $ 831,000      
Fair Value $ (12,000)      
Investment, Identifier [Axis]: Coupa Holdings, LLC 3        
Variable interest rate [14],[15],[18] 7.50%     7.50%
Interest Rate [14],[15],[18],[27] 12.82%     12.82%
Cost [14],[15],[18],[20] $ (19,000)      
Fair Value [14],[15],[18] $ (12,000)      
Investment, Identifier [Axis]: Cyara AcquisitionCo, LLC        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 313,000      
Fair Value $ (7,000)      
Investment, Identifier [Axis]: Cyara AcquisitionCo, LLC 1        
Variable interest rate [3],[14] 6.75%     6.75%
Interest rate, PIK [3],[14] 2.75%     2.75%
Interest Rate [3],[14],[27] 12.57%     12.57%
Par Amount [3],[14] $ 4,631,000      
Cost [3],[14],[20] 4,509,000      
Fair Value [3],[14] $ 4,535,000      
Percentage of Net Assets [3],[14] 0.31%     0.31%
Investment, Identifier [Axis]: Cyara AcquisitionCo, LLC 2        
Variable interest rate [3],[14],[15] 6.75%     6.75%
Interest rate, PIK [3],[14],[15] 2.75%     2.75%
Interest Rate [3],[14],[15],[27] 12.57%     12.57%
Cost [3],[14],[15],[20] $ (8,000)      
Fair Value [3],[14],[15] $ (6,000)      
Investment, Identifier [Axis]: DCA Investment Holdings, LLC        
Variable interest rate [13],[14],[18] 6.50%     6.50%
Interest Rate [13],[14],[18] 11.89%     11.89%
Par Amount [13],[14],[18] $ 18,323,000      
Cost [13],[14],[18] 18,007,000      
Fair Value [13],[14],[18] $ 17,770,000      
Percentage of Net Assets [13],[14],[18] 1.20%     1.20%
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 11,000 $ 1,026,000 $ 1,689,000  
Fair Value   $ (15,000)    
Investment, Identifier [Axis]: DCA Investment Holdings, LLC 1        
Variable interest rate 6.50% [14],[15],[18] 6.00% 6.25% [6],[19],[21] 6.50% [14],[15],[18]
Interest Rate 11.89% [14],[15],[18] 10.39% 7.00% [6],[8],[19],[21] 11.89% [14],[15],[18]
Par Amount $ 2,734,000 [14],[15],[18] $ 11,053,000 $ 11,175,000 [6],[19],[21]  
Cost 2,694,000 [14],[15],[18] 10,922,000 11,027,000 [1],[6],[19],[21]  
Fair Value $ 2,651,000 [14],[15],[18] $ 10,887,000 $ 11,175,000 [6],[19],[21]  
Percentage of Net Assets 0.18% [14],[15],[18] 0.78% 0.94% [6],[19],[21] 0.18% [14],[15],[18]
Investment, Identifier [Axis]: DCA Investment Holdings, LLC 2        
Variable interest rate 6.50% [14],[15],[18] 6.00% [15] 6.25% [6],[10],[19] 6.50% [14],[15],[18]
Interest Rate 11.89% [14],[15],[18] 10.39% [15] 7.00% [6],[8],[10],[19] 11.89% [14],[15],[18]
Par Amount $ 888,000 [14],[15],[18] $ 2,629,000 [15] $ 1,079,000 [6],[10],[19]  
Cost 863,000 [14],[15],[18] 2,572,000 [15] 1,053,000 [1],[6],[10],[19]  
Fair Value $ 860,000 [14],[15],[18] $ 2,575,000 [15] $ 1,079,000 [6],[10],[19]  
Percentage of Net Assets 0.06% [14],[15],[18] 0.18% [15] 0.09% [6],[10],[19] 0.06% [14],[15],[18]
Investment, Identifier [Axis]: DCA Investment Holdings, LLC 3        
Variable interest rate [14],[18] 6.50%     6.50%
Interest Rate [14],[18] 11.89%     11.89%
Par Amount [14],[18] $ 409,000      
Cost [14],[18] 406,000      
Fair Value [14],[18] $ 396,000      
Percentage of Net Assets [14],[18] 0.03%     0.03%
Investment, Identifier [Axis]: Diligent Corporation        
Variable interest rate [14],[23] 10.50%     10.50%
Interest Rate [4],[5],[24],[25]   10.50%    
Par Amount $ 5,000,000 [14],[23] $ 5,000,000 [4],[24]    
Par Amount, Shares (in shares) | shares   5,000 [5],[25] 5,000,000  
Cost 6,329,000 [14],[20],[23] $ 5,693,000 [1],[4],[5],[24],[25] $ 5,143,000  
Fair Value $ 6,326,000 [14],[23] $ 5,766,000 [4],[5],[24],[25] $ 5,295,000  
Percentage of Net Assets 0.43% [14],[23] 0.41% [4],[5],[24],[25] 0.45% 0.43% [14],[23]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,655,000 $ 3,150,000    
Fair Value $ (11,000) $ (69,000)    
Investment, Identifier [Axis]: Diligent Corporation 1        
Variable interest rate 5.75% [3],[13],[14] 5.75% [3],[4],[5],[13],[16] 5.75% [6],[21] 5.75% [3],[13],[14]
Interest Rate 11.43% [3],[13],[14],[27] 10.13% [3],[4],[5],[13],[16] 6.75% [6],[21] 11.43% [3],[13],[14],[27]
Par Amount $ 27,300,000 [3],[13],[14] $ 27,510,000 [3],[4],[5],[13],[16] $ 27,790,000 [6],[21]  
Cost 27,173,000 [3],[13],[14],[20] 27,337,000 [3],[4],[5],[13],[16],[20] 27,555,000 [6],[21]  
Fair Value $ 27,185,000 [3],[13],[14] $ 26,905,000 [3],[4],[5],[13],[16] $ 27,790,000 [6],[21]  
Percentage of Net Assets 1.83% [3],[13],[14] 1.93% [3],[4],[5],[13],[16] 2.34% [6],[21] 1.83% [3],[13],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 3,136,000  
Investment, Identifier [Axis]: Diligent Corporation 2        
Variable interest rate 5.75% [3],[13],[14] 5.75% [3],[4],[5],[13],[16] 5.75% [6],[10],[21] 5.75% [3],[13],[14]
Interest Rate 11.43% [3],[13],[14],[27] 10.13% [3],[4],[5],[13],[16] 6.75% [6],[10],[21] 11.43% [3],[13],[14],[27]
Par Amount $ 2,184,000 [3],[13],[14] $ 2,201,000 [3],[4],[5],[13],[16] $ 860,000 [6],[10],[21]  
Cost 2,174,000 [3],[13],[14],[20] 2,187,000 [3],[4],[5],[13],[16],[20] 826,000 [6],[10],[21]  
Fair Value $ 2,175,000 [3],[13],[14] $ 2,152,000 [3],[4],[5],[13],[16] $ 860,000 [6],[10],[21]  
Percentage of Net Assets 0.15% [3],[13],[14] 0.15% [3],[4],[5],[13],[16] 0.07% [6],[10],[21] 0.15% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 4,500,000  
Investment, Identifier [Axis]: Diligent Corporation 3        
Variable interest rate 5.75% [3],[14],[15] 6.25% [2],[3],[4],[5],[11] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.43% [3],[14],[15],[27] 10.63% [2],[3],[4],[5],[11] 6.75% [6],[10] 11.43% [3],[14],[15],[27]
Par Amount [3] $ 1,845,000 [14],[15] $ 1,350,000 [2],[4],[5],[11]    
Cost 1,826,000 [3],[14],[15],[20] 1,323,000 [2],[3],[4],[5],[11],[20] $ (37,000) [6],[10]  
Fair Value [3] $ 1,826,000 [14],[15] $ 1,251,000 [2],[4],[5],[11]    
Percentage of Net Assets 0.12% [3],[14],[15] 0.09% [2],[3],[4],[5],[11] 0.00% [6],[10] 0.12% [3],[14],[15]
Investment, Identifier [Axis]: Donuts, Inc.        
Variable interest rate 6.00% [3],[13],[14]   6.00% 6.00% [3],[13],[14]
Interest Rate 11.57% [3],[13],[14]   7.00% 11.57% [3],[13],[14]
Par Amount $ 24,918,000 [3],[13],[14]   $ 18,563,000  
Cost 24,669,000 [3],[13],[14]   18,237,000  
Fair Value $ 24,819,000 [3],[13],[14]   $ 18,563,000  
Percentage of Net Assets 1.68% [3],[13],[14]   1.56% 1.68% [3],[13],[14]
Unused Fee Rate   0.25%    
Unfunded Commitment   $ 3,166,000    
Fair Value   $ (80,000)    
Investment, Identifier [Axis]: Donuts, Inc. 1        
Variable interest rate   6.00%    
Interest Rate   10.43%    
Par Amount   $ 18,375,000    
Cost   18,108,000    
Fair Value   $ 17,910,000    
Percentage of Net Assets   1.28%    
Investment, Identifier [Axis]: Donuts, Inc. 2        
Variable interest rate   6.00%    
Interest Rate   10.43%    
Par Amount   $ 6,735,000    
Cost   6,735,000    
Fair Value   $ 6,565,000    
Percentage of Net Assets   0.47%    
Investment, Identifier [Axis]: Donuts, Inc. 3        
Variable interest rate [15]   6.00%    
Interest Rate [15]   10.43%    
Fair Value [15]   $ (80,000)    
Percentage of Net Assets [15]   (0.01%)    
Investment, Identifier [Axis]: Dwyer Instruments, Inc. 1        
Variable interest rate [18] 5.75% [14] 6.00% [4]   5.75% [14]
Interest Rate [18] 11.33% [14] 10.73% [4],[7]   11.33% [14]
Par Amount [18] $ 7,998,000 [14] $ 8,059,000 [4]    
Cost [18] 7,871,000 [14] 7,911,000 [4],[9]    
Fair Value [18] $ 7,820,000 [14] $ 7,694,000 [4]    
Percentage of Net Assets [18] 0.53% [14] 0.55% [4]   0.53% [14]
Unused Fee Rate 0.50% 1.00%    
Unfunded Commitment $ 2,028,000 $ 2,028,000    
Fair Value $ (45,000) $ (92,000)    
Investment, Identifier [Axis]: Dwyer Instruments, Inc. 2        
Variable interest rate [18] 5.75% [14],[15] 6.00% [4],[12]   5.75% [14],[15]
Interest Rate [18] 11.33% [14],[15] 10.73% [4],[7],[12]   11.33% [14],[15]
Cost [18] $ (15,000) [14],[15] $ (18,000) [4],[9],[12]    
Fair Value [18] $ (45,000) [14],[15] $ (92,000) [4],[12]    
Percentage of Net Assets [4],[12],[18]   (0.01%)    
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 754,000 $ 855,000    
Fair Value $ (17,000) $ (39,000)    
Investment, Identifier [Axis]: Dwyer Instruments, Inc. 3        
Variable interest rate [18] 5.75% [14],[15] 6.00% [4],[12]   5.75% [14],[15]
Interest Rate [18] 11.33% [14],[15] 10.73% [4],[7],[12]   11.33% [14],[15]
Par Amount [18] $ 260,000 [14],[15] $ 158,000 [4],[12]    
Cost [18] 245,000 [14],[15] 140,000 [4],[9],[12]    
Fair Value [18] $ 237,000 [14],[15] $ 113,000 [4],[12]    
Percentage of Net Assets [18] 0.02% [14],[15] 0.01% [4],[12]   0.02% [14],[15]
Investment, Identifier [Axis]: E-Discovery AcquireCo, LLC        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 1,618,000      
Fair Value $ (40,000)      
Investment, Identifier [Axis]: E-Discovery AcquireCo, LLC 1        
Variable interest rate [3],[14] 6.50%     6.50%
Interest Rate [3],[14],[27] 11.90%     11.90%
Par Amount [3],[14] $ 17,795,000      
Cost [3],[14],[20] 17,355,000      
Fair Value [3],[14] $ 17,355,000      
Percentage of Net Assets [3],[14] 1.17%     1.17%
Investment, Identifier [Axis]: E-Discovery AcquireCo, LLC 2        
Variable interest rate [3],[14],[15] 6.50%     6.50%
Interest Rate [3],[14],[15],[27] 11.90%     11.90%
Cost [3],[14],[15],[20] $ (40,000)      
Fair Value [3],[14],[15] (40,000)      
Investment, Identifier [Axis]: Electrical Source Holdings LLC 1        
Variable interest rate     5.50%  
Interest Rate     6.25%  
Par Amount     $ 29,550,000  
Cost     29,330,000  
Fair Value     $ 29,550,000  
Percentage of Net Assets     2.49%  
Investment, Identifier [Axis]: Electrical Source Holdings LLC 2        
Variable interest rate     5.50%  
Interest Rate     6.25%  
Par Amount     $ 6,538,000  
Cost     6,449,000  
Fair Value     $ 6,538,000  
Percentage of Net Assets     0.55%  
Investment, Identifier [Axis]: Electrical Source Holdings LLC 3        
Variable interest rate     5.50%  
Interest Rate     6.25%  
Par Amount     $ 197,000  
Cost     179,000  
Fair Value     $ 197,000  
Percentage of Net Assets     0.02%  
Investment, Identifier [Axis]: Electrical Source Holdings, LLC        
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 896,000  
Investment, Identifier [Axis]: Encore Holdings, LLC        
Par Amount 2,796,000 [14],[23] $ 2,391,000 [4],[24]    
Par Amount, Shares (in shares) | shares   2,391 [5],[25] 2,391,000  
Cost 348,000 [14],[20],[23] $ 275,000 [1],[4],[5],[24],[25] $ 275,000  
Fair Value $ 660,000 [14],[23] $ 449,000 [4],[5],[24],[25] $ 275,000  
Percentage of Net Assets 0.04% [14],[23] 0.03% [4],[5],[24],[25] 0.02% 0.04% [14],[23]
Investment, Identifier [Axis]: Encore Holdings, LLC 1        
Variable interest rate 4.50% [4],[18] 4.50% [4],[5],[18],[19] 4.50% [6],[19] 4.50% [4],[18]
Interest Rate 9.99% [4],[18] 9.23% [4],[5],[7],[18],[19] 5.25% [6],[8],[19] 9.99% [4],[18]
Par Amount $ 1,835,000 [4],[18] $ 1,850,000 [4],[5],[18],[19] $ 1,868,000 [6],[19]  
Cost 1,810,000 [4],[18] 1,821,000 [4],[5],[9],[18],[19] 1,836,000 [1],[6],[19]  
Fair Value $ 1,835,000 [4],[18] $ 1,806,000 [4],[5],[18],[19] $ 1,836,000 [6],[19]  
Percentage of Net Assets 0.12% [4],[18] 0.13% [4],[5],[18],[19] 0.15% [6],[19] 0.12% [4],[18]
Unused Fee Rate 0.75% 0.75% 0.75%  
Unfunded Commitment $ 1,268,000 $ 1,469,000 $ 3,081,000  
Fair Value   $ (35,000) $ (30,000)  
Investment, Identifier [Axis]: Encore Holdings, LLC 2        
Variable interest rate 4.50% [2],[4],[18] 4.50% [4],[5],[11],[12],[18],[19] 4.50% [6],[10],[19] 4.50% [2],[4],[18]
Interest Rate 9.99% [2],[4],[18] 9.23% [4],[5],[7],[11],[12],[18],[19] 5.25% [6],[8],[10],[19] 9.99% [2],[4],[18]
Par Amount $ 2,298,000 [2],[4],[18] $ 2,118,000 [4],[5],[11],[12],[18],[19] $ 512,000 [6],[10],[19]  
Cost 2,247,000 [2],[4],[18] 2,074,000 [4],[5],[9],[11],[12],[18],[19] 477,000 [1],[6],[10],[19]  
Fair Value $ 2,298,000 [2],[4],[18] $ 2,034,000 [4],[5],[11],[12],[18],[19] $ 477,000 [6],[10],[19]  
Percentage of Net Assets 0.16% [2],[4],[18] 0.15% [4],[5],[11],[12],[18],[19] 0.04% [6],[10],[19] 0.16% [2],[4],[18]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 539,000 $ 539,000 $ 539,000  
Fair Value   $ (13,000) $ (9,000)  
Investment, Identifier [Axis]: Encore Holdings, LLC 3        
Variable interest rate 4.50% [2],[4],[18] 4.50% [4],[5],[11],[12],[18],[19] 4.50% [6],[10],[19] 4.50% [2],[4],[18]
Interest Rate 9.99% [2],[4],[18] 9.23% [4],[5],[7],[11],[12],[18],[19] 5.25% [6],[8],[10],[19] 9.99% [2],[4],[18]
Cost $ (6,000) [2],[4],[18] $ (8,000) [4],[5],[9],[11],[12],[18],[19] $ (9,000) [1],[6],[10],[19]  
Fair Value [19]   $ (13,000) [4],[5],[11],[12],[18] $ (9,000) [6],[10]  
Percentage of Net Assets [19]   0.00% [5],[11] 0.00% [6],[10]  
Investment, Identifier [Axis]: Energy Labs Holdings Corp.        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 33,000      
Investment, Identifier [Axis]: Energy Labs Holdings Corp. 1        
Variable interest rate [3] 5.25% [4] 5.25% [5],[14]   5.25% [4]
Interest Rate [3] 10.68% [4] 9.57% [5],[14],[22]   10.68% [4]
Par Amount [3] $ 385,000 [4] $ 388,000 [14]    
Par Amount, Shares (in shares) | shares [5]   388    
Cost [3] 380,000 [4] $ 382,000 [1],[5],[14]    
Fair Value [3] $ 379,000 [4] $ 376,000 [5],[14]    
Percentage of Net Assets [3] 0.03% [4] 0.03% [5],[14]   0.03% [4]
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 47,000    
Fair Value   $ (1,000)    
Investment, Identifier [Axis]: Energy Labs Holdings Corp. 2        
Variable interest rate [3] 5.25% [4] 5.25% [5],[11],[14],[15]   5.25% [4]
Interest Rate [3] 10.68% [4] 9.57% [5],[11],[14],[15],[22]   10.68% [4]
Par Amount [3],[4] $ 37,000      
Par Amount, Shares (in shares) | shares [5],[11]   0    
Cost 36,000 [3],[4] $ 0 [1],[5],[11]    
Fair Value [3] $ 36,000 [4] $ (2,000) [5],[11],[14],[15]    
Percentage of Net Assets [5],[11]   0.00%    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 45,000    
Fair Value   $ (1,000)    
Investment, Identifier [Axis]: Energy Labs Holdings Corp. 3        
Variable interest rate [3] 5.25% [2],[4] 5.25% [5],[11],[14],[15]   5.25% [2],[4]
Interest Rate [3] 10.68% [2],[4] 9.57% [5],[11],[14],[15],[22]   10.68% [2],[4]
Par Amount [3] $ 30,000 [2],[4] $ 18,000 [14],[15]    
Par Amount, Shares (in shares) | shares [5],[11]   18    
Cost [3] 29,000 [2],[4] $ 17,000 [1],[5],[11],[14],[15]    
Fair Value [3] $ 29,000 [2],[4] $ 16,000 [5],[11],[14],[15]    
Percentage of Net Assets [5],[11]   0.00%    
Investment, Identifier [Axis]: Excelitas Technologies Corp. 1        
Variable interest rate 5.75% [14],[18] 5.75% [5],[19]   5.75% [14],[18]
Interest Rate 11.22% [14],[18] 10.12% [5],[19],[22]   11.22% [14],[18]
Par Amount $ 1,458,000 [14],[18] $ 1,378,000 [5],[19]    
Cost 1,433,000 [14],[18] 1,351,000 [1],[5],[19]    
Fair Value $ 1,440,000 [14],[18] $ 1,311,000 [5],[19]    
Percentage of Net Assets 0.10% [14],[18] 0.09% [5],[19]   0.10% [14],[18]
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 170,000 $ 262,000    
Fair Value $ (2,000) $ (13,000)    
Investment, Identifier [Axis]: Excelitas Technologies Corp. 2        
Variable interest rate 5.75% [14],[18] 5.75% [5],[19]   5.75% [14],[18]
Interest Rate 9.54% [14],[18] 7.55% [5],[19],[22]   9.54% [14],[18]
Par Amount $ 240,000 [14],[18] $ 242,000 [5],[19]    
Cost 244,000 [14],[18] 245,000 [1],[5],[19]    
Fair Value $ 251,000 [14],[18] $ 246,000 [5],[19]    
Percentage of Net Assets 0.02% [14],[18] 0.02% [5],[19]   0.02% [14],[18]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 53,000 $ 57,000    
Fair Value $ (1,000) $ (3,000)    
Investment, Identifier [Axis]: Excelitas Technologies Corp. 3        
Variable interest rate [15] 5.75% [14],[18] 5.75% [5],[11],[19]   5.75% [14],[18]
Interest Rate [15] 11.22% [14],[18] 10.12% [5],[11],[19],[22]   11.22% [14],[18]
Cost [15] $ (2,000) [14],[18] $ (2,000) [1],[5],[11],[19]    
Fair Value [15] $ (2,000) [14],[18] $ (13,000) [5],[11],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Excelitas Technologies Corp. 4        
Variable interest rate [15] 5.75% [14],[18] 5.75% [5],[11],[19]   5.75% [14],[18]
Interest Rate [15] 11.22% [14],[18] 10.12% [5],[11],[19],[22]   11.22% [14],[18]
Par Amount [15] $ 78,000 [14],[18] $ 74,000 [5],[11],[19]    
Cost [15] 75,000 [14],[18] 72,000 [1],[5],[11],[19]    
Fair Value [15] $ 76,000 [14],[18] $ 68,000 [5],[11],[19]    
Percentage of Net Assets 0.01% [14],[15],[18] 0.00% [5],[11],[19]   0.01% [14],[15],[18]
Investment, Identifier [Axis]: FLS Holding, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,802,000 $ 1,802,000    
Fair Value $ (22,000) $ (29,000)    
Investment, Identifier [Axis]: FLS Holding, Inc. 1        
Variable interest rate 5.25% [3],[4],[28] 5.25% [3],[4],[5],[30] 5.25% [6],[31] 5.25% [3],[4],[28]
Interest Rate 10.79% [3],[4],[28] 10.40% [3],[4],[5],[7],[30] 6.25% [6],[8],[31] 10.79% [3],[4],[28]
Par Amount $ 19,073,000 [3],[4],[28] $ 20,727,000 [3],[4],[5],[30] $ 28,750,000 [6],[31]  
Cost 18,769,000 [3],[4],[28] 20,361,000 [3],[4],[5],[9],[30] 28,178,000 [1],[6],[31]  
Fair Value $ 18,844,000 [3],[4],[28] $ 20,389,000 [3],[4],[5],[30] $ 28,178,000 [6],[31]  
Percentage of Net Assets 1.27% [3],[4],[28] 1.46% [3],[4],[5],[30] 2.37% [6],[31] 1.27% [3],[4],[28]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 6,250,000  
Fair Value     $ (62,000)  
Investment, Identifier [Axis]: FLS Holding, Inc. 2        
Variable interest rate 5.25% [3],[4],[28] 5.25% [3],[4],[5],[30] 5.25% [6],[10],[31] 5.25% [3],[4],[28]
Interest Rate 10.79% [3],[4],[28] 10.40% [3],[4],[5],[7],[30] 6.25% [6],[8],[10],[31] 10.79% [3],[4],[28]
Par Amount [3],[4] $ 4,472,000 [28] $ 4,506,000 [5],[30]    
Cost 4,398,000 [3],[4],[28] 4,424,000 [3],[4],[5],[9],[30] $ (62,000) [1],[6],[10],[31]  
Fair Value $ 4,418,000 [3],[4],[28] $ 4,432,000 [3],[4],[5],[30] $ (62,000) [6],[10],[31]  
Percentage of Net Assets 0.30% [3],[4],[28] 0.32% [3],[4],[5],[30] (0.01%) [6],[10],[31] 0.30% [3],[4],[28]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,500,000  
Fair Value     $ (50,000)  
Investment, Identifier [Axis]: FLS Holding, Inc. 3        
Variable interest rate 5.25% [2],[3],[4],[28] 5.25% [3],[4],[5],[11],[12],[30] 5.25% [6],[10],[31] 5.25% [2],[3],[4],[28]
Interest Rate 10.79% [2],[3],[4],[28] 10.40% [3],[4],[5],[7],[11],[12],[30] 6.25% [6],[8],[10],[31] 10.79% [2],[3],[4],[28]
Cost $ (25,000) [2],[3],[4],[28] $ (30,000) [3],[4],[5],[9],[11],[12],[30] $ (50,000) [1],[6],[10],[31]  
Fair Value $ (22,000) [2],[3],[4],[28] $ (29,000) [3],[4],[5],[11],[12],[30] $ (50,000) [6],[10],[31]  
Percentage of Net Assets   0.00% [5],[11] 0.00% [6],[10],[31]  
Investment, Identifier [Axis]: FMG Suite Holdings, LLC        
Unused Fee Rate 0.38% 0.50%    
Unfunded Commitment $ 1,426,000 $ 2,074,000    
Fair Value $ (16,000) $ (44,000)    
Investment, Identifier [Axis]: FMG Suite Holdings, LLC 1        
Variable interest rate 5.50% [3],[14] 5.50% [5] 5.50% 5.50% [3],[14]
Interest Rate 10.71% [3],[14] 9.34% [5] 6.50% 10.71% [3],[14]
Par Amount $ 23,587,000 [3],[14] $ 24,060,000 [5] $ 22,253,000  
Cost 23,255,000 [3],[14] 23,699,000 [5] 21,854,000  
Fair Value $ 23,288,000 [3],[14] $ 23,546,000 [5] $ 22,171,000  
Percentage of Net Assets 1.57% [3],[14] 1.69% [5] 1.87% 1.57% [3],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 5,250,000  
Fair Value     $ (19,000)  
Investment, Identifier [Axis]: FMG Suite Holdings, LLC 2        
Variable interest rate 5.50% [3],[14] 5.50% [5] 5.50% 5.50% [3],[14]
Interest Rate 10.71% [3],[14] 9.34% [5] 6.50% 10.71% [3],[14]
Par Amount $ 4,580,000 [3],[14] $ 5,224,000 [5]    
Cost 4,529,000 [3],[14] 5,151,000 [5] $ (92,000)  
Fair Value $ 4,530,000 [3],[14] $ 5,112,000 [5] $ (19,000)  
Percentage of Net Assets 0.31% [3],[14] 0.37% [5] 0.00% 0.31% [3],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,625,000  
Fair Value     $ (10,000)  
Investment, Identifier [Axis]: FMG Suite Holdings, LLC 3        
Variable interest rate 5.50% [3],[14],[15] 5.50% [5],[11],[15] 5.50% 5.50% [3],[14],[15]
Interest Rate 10.71% [3],[14],[15] 9.34% [5],[11],[15] 6.50% 10.71% [3],[14],[15]
Par Amount [15] $ 893,000 [3],[14] $ 551,000 [5],[11]    
Cost 867,000 [3],[14],[15] 515,000 [5],[11],[15] $ (46,000)  
Fair Value $ 867,000 [3],[14],[15] $ 495,000 [5],[11],[15] $ (10,000)  
Percentage of Net Assets 0.06% [3],[14],[15] 0.04% [5],[11],[15] 0.00% 0.06% [3],[14],[15]
Investment, Identifier [Axis]: FORTIS Solutions Group, LLC        
Variable interest rate [14],[23] 12.25%     12.25%
Interest Rate [4],[5],[24],[25]   12.25%    
Par Amount $ 1,000,000,000 [14],[23] $ 1,000,000,000 [4],[24]    
Par Amount, Shares (in shares) | shares [5],[25]   1,000,000    
Cost 1,143,000 [14],[20],[23] $ 1,041,000 [1],[4],[5],[24],[25]    
Fair Value $ 970,000 [14],[23] $ 1,024,000 [4],[5],[24],[25]    
Percentage of Net Assets 0.07% [14],[23] 0.07% [4],[5],[24],[25]   0.07% [14],[23]
Investment, Identifier [Axis]: FORTIS Solutions Group, LLC 1        
Variable interest rate 5.50% [14],[18] 5.50% [5],[19] 5.50% [6],[19] 5.50% [14],[18]
Interest Rate 11.04% [14],[18] 9.73% [5],[19] 6.25% [6],[8],[19] 11.04% [14],[18]
Par Amount $ 26,776,000 [14],[18] $ 26,980,000 [5],[19] $ 19,430,000 [6],[19]  
Cost 26,358,000 [14],[18] 26,513,000 [5],[19] 19,051,000 [1],[6],[19]  
Fair Value $ 26,744,000 [14],[18] $ 26,101,000 [5],[19] $ 19,051,000 [6],[19]  
Percentage of Net Assets 1.81% [14],[18] 1.87% [5],[19] 1.60% [6],[19] 1.81% [14],[18]
Unused Fee Rate 1.00%   0.50%  
Unfunded Commitment $ 936,000   $ 7,871,000  
Fair Value $ (1,000)   $ (76,000)  
Investment, Identifier [Axis]: FORTIS Solutions Group, LLC 2        
Variable interest rate 5.50% [14],[15],[18] 5.50% [5],[11],[19] 5.50% [6],[10],[19] 5.50% [14],[15],[18]
Interest Rate 11.04% [14],[15],[18] 9.73% [5],[11],[19] 6.25% [6],[8],[10],[19] 11.04% [14],[15],[18]
Par Amount [14],[15],[18] $ 76,000      
Cost 74,000 [14],[15],[18] $ (2,000) [5],[11],[19] $ (76,000) [1],[6],[10],[19]  
Fair Value $ 76,000 [14],[15],[18] $ (3,000) [5],[11],[19] $ (76,000) [6],[10],[19]  
Percentage of Net Assets 0.01% [14],[15],[18] 0.00% [5],[11],[19] (0.01%) [6],[10],[19] 0.01% [14],[15],[18]
Unused Fee Rate 0.50%   0.50%  
Unfunded Commitment $ 2,699,000   $ 2,699,000  
Fair Value $ (3,000)   $ (52,000)  
Investment, Identifier [Axis]: FORTIS Solutions Group, LLC 3        
Variable interest rate 5.50% [14],[15],[18] 5.50% [5],[11],[19] 5.50% [6],[10],[19] 5.50% [14],[15],[18]
Interest Rate 11.04% [14],[15],[18] 9.73% [5],[11],[19] 6.25% [6],[8],[10],[19] 11.04% [14],[15],[18]
Par Amount [14],[15],[18] $ 64,000      
Cost 58,000 [14],[15],[18] $ (7,000) [5],[11],[19] $ (52,000) [1],[6],[10],[19]  
Fair Value $ 63,000 [14],[15],[18] $ (33,000) [5],[11],[19] $ (52,000) [6],[10],[19]  
Percentage of Net Assets [19]   0.00% [5],[11] 0.00% [6],[10]  
Investment, Identifier [Axis]: FORTIS Solutions Group, LLC 4        
Variable interest rate 5.50% [14],[15],[18] 5.50% [5],[11],[19]   5.50% [14],[15],[18]
Interest Rate 11.04% [14],[15],[18] 9.73% [5],[11],[19]   11.04% [14],[15],[18]
Par Amount [5],[11],[19]   $ 360,000    
Cost $ (36,000) [14],[15],[18] 317,000 [5],[11],[19]    
Fair Value $ (3,000) [14],[15],[18] $ 272,000 [5],[11],[19]    
Percentage of Net Assets [5],[11],[19]   0.02%    
Investment, Identifier [Axis]: FPG Intermediate Holdco, LLC        
Variable interest rate [3] 6.50% [14] 6.50% [4],[5]   6.50% [14]
Interest Rate [3] 12.07% [14] 10.92% [4],[5],[7]   12.07% [14]
Par Amount [3] $ 420,000 [14] $ 497,000 [4],[5]    
Cost [3] 413,000 [14] 488,000 [4],[5],[9]    
Fair Value [3] $ 411,000 [14] $ 472,000 [4],[5]    
Percentage of Net Assets [3] 0.03% [14] 0.03% [4],[5]   0.03% [14]
Investment, Identifier [Axis]: Familia Intermediate Holdings I Corp. (Teasdale Latin Foods)        
Variable interest rate [5],[32]   16.25%    
Interest rate, PIK 16.25% [14],[33] 16.25% [4],[34] 16.25% [6],[35] 16.25% [14],[33]
Par Amount $ 1,500,000 [14],[33] $ 1,500,000 [4],[5],[32],[34] $ 1,800,000 [6],[35]  
Cost 1,500,000 [14],[20],[33] 1,500,000 [1],[4],[5],[32],[34] 1,777,000 [1],[6],[35]  
Fair Value $ 125,000 [14],[33] $ 372,000 [4],[5],[32],[34] $ 1,350,000 [6],[35]  
Percentage of Net Assets 0.01% [14],[33] 0.03% [4],[5],[32],[34] 0.11% [6],[35] 0.01% [14],[33]
Investment, Identifier [Axis]: Fetch Insurance Services, LLC        
Variable interest rate [14] 12.75%     12.75%
Interest rate, PIK [14] 3.75%     3.75%
Par Amount [14] $ 1,935,000      
Cost [14],[20] 1,886,000      
Fair Value [14] $ 1,877,000      
Percentage of Net Assets [14] 0.13%     0.13%
Investment, Identifier [Axis]: Fetch Insurance Services, LLC (Fetch)        
Variable interest rate [5]   12.75%    
Interest rate, PIK [5]   3.75%    
Interest Rate [4]   12.75%    
Par Amount [4],[5]   $ 1,881,000    
Cost [1],[4],[5]   1,826,000    
Fair Value [4],[5]   $ 1,826,000    
Percentage of Net Assets [4],[5]   0.13%    
Investment, Identifier [Axis]: Flexera Software, LLC        
Variable interest rate 7.00% [3],[14] 7.00% [3],[4],[5] 7.00% [6] 7.00% [3],[14]
Interest Rate 12.43% [3],[14],[27] 11.39% [3],[4],[5],[22] 8.00% [6],[8] 12.43% [3],[14],[27]
Par Amount $ 13,500,000 [3],[14] $ 13,500,000 [3],[4],[5] $ 13,500,000 [6]  
Cost 13,296,000 [3],[14],[20] 13,277,000 [1],[3],[4],[5] 13,251,000 [1],[6]  
Fair Value $ 13,469,000 [3],[14] $ 12,584,000 [3],[4],[5] $ 13,500,000 [6]  
Percentage of Net Assets 0.91% [3],[14] 0.90% [3],[4],[5] 1.14% [6] 0.91% [3],[14]
Investment, Identifier [Axis]: Fortis Solutions Group, LLC 1        
Variable interest rate [4],[18]   5.50%    
Interest Rate [4],[7],[18]   9.73%    
Par Amount [4],[18]   $ 26,980,000    
Cost [4],[9],[18]   26,513,000    
Fair Value [4],[18]   $ 26,101,000    
Percentage of Net Assets [4],[18]   1.87%    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 76,000    
Fair Value   $ (2,000)    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC 2        
Variable interest rate [4],[12],[18]   5.50%    
Interest Rate [4],[7],[12],[18]   9.73%    
Cost [4],[9],[12],[18]   $ (2,000)    
Fair Value [4],[12],[18]   $ (3,000)    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 1,000,000    
Fair Value   $ (33,000)    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC 3        
Variable interest rate [4],[12],[18]   5.50%    
Interest Rate [4],[7],[12],[18]   9.73%    
Cost [4],[9],[12],[18]   $ (7,000)    
Fair Value [4],[12],[18]   $ (33,000)    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 2,339,000    
Fair Value   $ (76,000)    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC 4        
Variable interest rate [4],[12],[18]   5.50%    
Interest Rate [4],[7],[12],[18]   9.73%    
Par Amount [4],[12],[18]   $ 360,000    
Cost [4],[9],[12],[18]   317,000    
Fair Value [4],[12],[18]   $ 272,000    
Percentage of Net Assets [4],[12],[18]   0.02%    
Investment, Identifier [Axis]: Foundation Risk Partners Corp.        
Unused Fee Rate 0.38% 0.38%    
Unfunded Commitment $ 4,571,000 $ 2,689,000    
Fair Value $ (246,000) $ (47,000)    
Investment, Identifier [Axis]: Foundation Risk Partners Corp. 1        
Variable interest rate 6.00% [14],[18] 6.00% [5],[19] 5.75% 6.00% [14],[18]
Interest Rate 11.49% [14],[18] 10.68% [5],[19],[22] 6.50% 11.49% [14],[18]
Par Amount $ 42,641,000 [14],[18] $ 42,966,000 [5],[19] $ 43,291,000  
Cost 42,141,000 [14],[18] 42,408,000 [1],[5],[19] 42,654,000  
Fair Value $ 40,343,000 [14],[18] $ 42,218,000 [5],[19] $ 42,654,000  
Percentage of Net Assets 2.72% [14],[18] 3.02% [5],[19] 3.59% 2.72% [14],[18]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 4,033,000  
Fair Value     $ (47,000)  
Investment, Identifier [Axis]: Foundation Risk Partners Corp. 2        
Variable interest rate 6.00% [14],[18] 6.00% [5],[19] 5.75% 6.00% [14],[18]
Interest Rate 11.49% [14],[18] 10.68% [5],[19],[22] 6.50% 11.49% [14],[18]
Par Amount $ 9,274,000 [14],[18] $ 9,345,000 [5],[19] $ 5,378,000  
Cost 9,165,000 [14],[18] 9,222,000 [1],[5],[19] 5,269,000  
Fair Value $ 8,774,000 [14],[18] $ 9,182,000 [5],[19] $ 5,269,000  
Percentage of Net Assets 0.59% [14],[18] 0.66% [5],[19] 0.44% 0.59% [14],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 4,571,000  
Fair Value     $ (67,000)  
Investment, Identifier [Axis]: Foundation Risk Partners Corp. 3        
Variable interest rate 6.75% [14],[15],[18] 6.00% [5],[11],[15],[19] 5.75% 6.75% [14],[15],[18]
Interest Rate 11.87% [14],[15],[18] 10.32% [5],[11],[15],[19],[22] 6.50% 11.87% [14],[15],[18]
Par Amount [5],[11],[15],[19]   $ 1,882,000    
Cost $ (47,000) [14],[15],[18] 1,827,000 [1],[5],[11],[15],[19] $ (67,000)  
Fair Value $ (246,000) [14],[15],[18] $ 1,803,000 [5],[11],[15],[19] $ (67,000)  
Percentage of Net Assets (0.02%) [14],[15],[18] 0.13% [5],[11],[15],[19] (0.01%) (0.02%) [14],[15],[18]
Investment, Identifier [Axis]: Frisbee Holding, LP (Fetch)        
Par Amount [4],[24]   $ 21,744,000    
Par Amount, Shares (in shares) | shares [5],[25]   21,744    
Cost [1],[4],[5],[24],[25]   $ 277,000    
Fair Value [4],[5],[24],[25]   $ 277,000    
Percentage of Net Assets [4],[5],[24],[25]   0.02%    
Investment, Identifier [Axis]: Frisbee Holdings, LP (Fetch)        
Par Amount [14],[23] $ 21,744,000      
Cost [14],[20],[23] 277,000      
Fair Value [14],[23] $ 277,000      
Percentage of Net Assets [14],[23] 0.02%     0.02%
Investment, Identifier [Axis]: GC Waves Holdings, Inc.1        
Variable interest rate [14],[18] 6.00%     6.00%
Interest Rate [14],[18] 11.42%     11.42%
Par Amount [14],[18] $ 2,307,000      
Cost [14],[18] 2,263,000      
Fair Value [14],[18] $ 2,263,000      
Percentage of Net Assets [14],[18] 0.15%     0.15%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 6,707,000      
Fair Value $ (161,000)      
Investment, Identifier [Axis]: GC Waves Holdings, Inc.2        
Variable interest rate [14],[15],[18] 6.00%     6.00%
Interest Rate [14],[15],[18] 11.42%     11.42%
Par Amount [14],[15],[18] $ 14,000      
Cost [14],[15],[18] (148,000)      
Fair Value [14],[15],[18] $ (148,000)      
Percentage of Net Assets [14],[15],[18] (0.01%)     (0.01%)
Unused Fee Rate 1.00%      
Unfunded Commitment $ 4,000      
Investment, Identifier [Axis]: GC Waves Holdings, Inc.3        
Variable interest rate [14],[15],[18] 6.00%     6.00%
Interest Rate [14],[15],[18] 11.42%     11.42%
Cost [14],[15],[18] $ (6,000)      
Fair Value [14],[15],[18] $ (6,000)      
Unused Fee Rate 0.50%      
Unfunded Commitment $ 331,000      
Fair Value $ (6,000)      
Investment, Identifier [Axis]: GS AcquisitionCo, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,420,000 $ 2,420,000    
Fair Value $ (6,000) $ (58,000)    
Investment, Identifier [Axis]: GS AcquisitionCo, Inc. 1        
Variable interest rate 5.75% [3],[13],[14] 5.75% [3],[4],[5],[13],[16] 5.75% [6],[21] 5.75% [3],[13],[14]
Interest Rate 11.29% [3],[13],[14],[27] 9.91% [3],[4],[5],[13],[16] 6.75% [6],[21] 11.29% [3],[13],[14],[27]
Par Amount $ 75,341,000 [3],[13],[14] $ 75,927,000 [3],[4],[5],[13],[16] $ 69,710,000 [6],[21]  
Cost 74,944,000 [3],[13],[14],[20] 75,432,000 [3],[4],[5],[13],[16],[20] 69,108,000 [6],[21]  
Fair Value $ 75,167,000 [3],[13],[14] $ 74,120,000 [3],[4],[5],[13],[16] $ 69,361,000 [6],[21]  
Percentage of Net Assets 5.07% [3],[13],[14] 5.30% [3],[4],[5],[13],[16] 5.84% [6],[21] 5.07% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 10,833,000  
Fair Value     $ (54,000)  
Investment, Identifier [Axis]: GS AcquisitionCo, Inc. 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[4],[5],[14] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.29% [3],[14],[15],[27] 9.91% [3],[4],[5],[14] 6.75% [6],[10] 11.29% [3],[14],[15],[27]
Cost $ (15,000) [3],[14],[15],[20]   $ (26,000) [6],[10]  
Fair Value (6,000) [3],[14],[15]   $ (54,000) [6],[10]  
Percentage of Net Assets   0.00% [5] 0.00% [6],[10]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,270,000  
Fair Value     $ (6,000)  
Investment, Identifier [Axis]: GS AcquisitionCo, Inc. 3        
Variable interest rate   5.75% [2],[3],[5],[11],[14] 5.75% [6],[10]  
Interest Rate   9.91% [2],[3],[5],[11],[14] 6.75% [6],[10]  
Par Amount [6],[10]     $ 1,149,000  
Cost   $ (19,000) [2],[3],[5],[11],[14],[20] 1,125,000 [6],[10]  
Fair Value   $ (58,000) [2],[3],[5],[11],[14] $ 1,137,000 [6],[10]  
Percentage of Net Assets   0.00% [5],[11] 0.10% [6],[10]  
Investment, Identifier [Axis]: GSM Acquisition Corp.        
Par Amount, Shares (in shares) | shares     4,500,000  
Cost     $ 450,000  
Fair Value     $ 1,242,000  
Percentage of Net Assets     0.10%  
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 4,280,000    
Fair Value   (62,000)    
Investment, Identifier [Axis]: GSM Acquisition Corp. (GSM Outdoors)        
Par Amount 4,500,000 [14],[23] $ 4,500,000 [4],[24]    
Par Amount, Shares (in shares) | shares [5],[25]   4,500    
Cost 450,000 [14],[20],[23] $ 450,000 [1],[4],[5],[24],[25]    
Fair Value $ 665,000 [14],[23] $ 916,000 [4],[5],[24],[25]    
Percentage of Net Assets 0.04% [14],[23] 0.07% [4],[5],[24],[25]   0.04% [14],[23]
Unused Fee Rate 0.50%   0.50%  
Unfunded Commitment $ 4,280,000   $ 1,617,000  
Fair Value $ (91,000)      
Investment, Identifier [Axis]: GSM Acquisition Corp. (GSM Outdoors) 1        
Variable interest rate 5.00% [3],[13],[14] 5.00% [5],[16] 5.00% [6],[21] 5.00% [3],[13],[14]
Interest Rate 10.65% [3],[13],[14] 9.84% [5],[16] 6.00% [6],[21],[22] 10.65% [3],[13],[14]
Par Amount $ 17,313,000 [3],[13],[14] $ 17,447,000 [5],[16] $ 47,701,000 [6],[21]  
Cost 17,208,000 [3],[13],[14] 17,319,000 [5],[16] 47,196,000 [1],[6],[21]  
Fair Value $ 16,944,000 [3],[13],[14] $ 17,194,000 [5],[16] $ 47,701,000 [6],[21]  
Percentage of Net Assets 1.14% [3],[13],[14] 1.23% [5],[16] 4.01% [6],[21] 1.14% [3],[13],[14]
Investment, Identifier [Axis]: GSM Acquisition Corp. (GSM Outdoors) 2        
Variable interest rate 5.00% [3],[14] 5.00% [5] 5.00% [6],[10] 5.00% [3],[14]
Interest Rate 10.65% [3],[14] 9.84% [5] 6.00% [6],[10],[22] 10.65% [3],[14]
Par Amount $ 4,456,000 [3],[14] $ 4,490,000 [5] $ 7,199,000 [6],[10]  
Cost 4,420,000 [3],[14] 4,446,000 [5] 7,096,000 [1],[6],[10]  
Fair Value $ 4,361,000 [3],[14] $ 4,425,000 [5] $ 7,199,000 [6],[10]  
Percentage of Net Assets 0.29% [3],[14] 0.32% [5] 0.61% [6],[10] 0.29% [3],[14]
Investment, Identifier [Axis]: GSM Acquisition Corp. (GSM Outdoors) 3        
Variable interest rate 5.00% [3],[14],[15] 5.00% [5],[11]   5.00% [3],[14],[15]
Interest Rate 10.65% [3],[14],[15] 9.84% [5],[11]   10.65% [3],[14],[15]
Cost $ (32,000) [3],[14],[15] $ (39,000) [5],[11]    
Fair Value $ (91,000) [3],[14],[15] $ (62,000) [5],[11]    
Percentage of Net Assets (0.01%) [3],[14],[15] 0.00% [5],[11]   (0.01%) [3],[14],[15]
Investment, Identifier [Axis]: Galway Borrower, LLC 1        
Variable interest rate 5.25% [14],[18] 5.25% [5],[15],[19] 5.25% 5.25% [14],[18]
Interest Rate 10.85% [14],[18] 9.98% [5],[15],[19],[22] 6.00% 10.85% [14],[18]
Par Amount $ 33,165,000 [14],[18] $ 32,271,000 [5],[15],[19] $ 26,722,000  
Cost 32,654,000 [14],[18] 31,721,000 [1],[5],[15],[19] 26,203,000  
Fair Value $ 32,082,000 [14],[18] $ 30,880,000 [5],[15],[19] $ 26,260,000  
Percentage of Net Assets 2.17% [14],[18] 2.21% [5],[15],[19] 2.21% 2.17% [14],[18]
Unused Fee Rate 1.00% 0.50% 0.50%  
Unfunded Commitment $ 1,712,000 $ 298,000 $ 4,311,000  
Fair Value $ (24,000) $ (12,000) $ (75,000)  
Investment, Identifier [Axis]: Galway Borrower, LLC 2        
Variable interest rate 5.25% [14],[15],[18] 5.25% [5],[11],[15],[19] 5.25% 5.25% [14],[15],[18]
Interest Rate 10.85% [14],[15],[18] 9.98% [5],[11],[15],[19],[22] 6.00% 10.85% [14],[15],[18]
Par Amount $ 298,000 [14],[15],[18]   $ 1,843,000  
Cost 273,000 [14],[15],[18] $ (7,000) [1],[5],[11],[15],[19] 1,766,000  
Fair Value $ 264,000 [14],[15],[18] $ (13,000) [5],[11],[15],[19] $ 1,736,000  
Percentage of Net Assets 0.02% [14],[15],[18] 0.00% [5],[11],[19] 0.15% 0.02% [14],[15],[18]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 2,053,000 $ 2,053,000 $ 2,053,000  
Fair Value $ (68,000) $ (88,000) $ (36,000)  
Investment, Identifier [Axis]: Galway Borrower, LLC 3        
Variable interest rate 5.25% [14],[15],[18] 5.25% [5],[11],[15],[19] 5.25% 5.25% [14],[15],[18]
Interest Rate 10.85% [14],[15],[18] 9.98% [5],[11],[15],[19],[22] 6.00% 10.85% [14],[15],[18]
Cost $ (27,000) [14],[15],[18] $ (32,000) [1],[5],[11],[15],[19] $ (39,000)  
Fair Value $ (68,000) [14],[15],[18] $ (88,000) [5],[11],[15],[19] $ (35,000)  
Percentage of Net Assets   (0.01%) [5],[11],[15],[19] 0.00%  
Investment, Identifier [Axis]: Gateway US Holdings, Inc. 1        
Variable interest rate 6.50% [14],[18],[28] 6.50% [29]   6.50% [14],[18],[28]
Interest Rate 12.04% [14],[18],[28] 11.23% [29]   12.04% [14],[18],[28]
Par Amount $ 752,000 [14],[18],[28] $ 750,000 [29]    
Cost 746,000 [14],[18],[28] 744,000 [29]    
Fair Value $ 752,000 [14],[18],[28] $ 736,000 [29]    
Percentage of Net Assets 0.05% [14],[18],[28] 0.05% [29]   0.05% [14],[18],[28]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 6,000 $ 6,000    
Fair Value   $ 0    
Investment, Identifier [Axis]: Gateway US Holdings, Inc. 2        
Variable interest rate [15] 6.50% [14],[18],[28] 6.50% [29]   6.50% [14],[18],[28]
Interest Rate [15] 12.04% [14],[18],[28] 11.23% [29]   12.04% [14],[18],[28]
Par Amount [15] $ 206,000 [14],[18],[28] $ 165,000 [29]    
Cost [15] 204,000 [14],[18],[28] 164,000 [29]    
Fair Value [15] $ 206,000 [14],[18],[28] $ 162,000 [29]    
Percentage of Net Assets [15] 0.01% [14],[18],[28] 0.01% [29]   0.01% [14],[18],[28]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 30,000 $ 14,000    
Fair Value   $ 0    
Investment, Identifier [Axis]: Gateway US Holdings, Inc. 3        
Variable interest rate [15] 6.50% [14],[18],[28] 6.50% [29]   6.50% [14],[18],[28]
Interest Rate [15] 12.04% [14],[18],[28] 11.23% [29]   12.04% [14],[18],[28]
Par Amount [15],[29]   $ 17,000    
Cost [15],[29]   16,000    
Fair Value [15],[29]   $ 16,000    
Percentage of Net Assets [29]   0.00%    
Investment, Identifier [Axis]: Govbrands Intermediate, Inc. 1        
Variable interest rate   5.50% 5.50%  
Interest Rate   10.23% 6.25%  
Par Amount   $ 39,759,000 $ 40,162,000  
Cost   38,962,000 39,214,000  
Fair Value   $ 37,942,000 $ 39,214,000  
Percentage of Net Assets   2.72% 3.30%  
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 4,185,000 $ 4,185,000  
Fair Value   $ (191,000) $ (83,000)  
Investment, Identifier [Axis]: Govbrands Intermediate, Inc. 2        
Variable interest rate   5.50% [15] 5.50%  
Interest Rate   10.23% [15] 6.25%  
Par Amount   $ 8,969,000 [15] $ 9,059,000  
Cost   8,751,000 [15] 8,795,000  
Fair Value   $ 8,367,000 [15] $ 8,795,000  
Percentage of Net Assets   0.60% [15] 0.74%  
Unused Fee Rate   0.50% 0.50%  
Unfunded Commitment   $ 424,000 $ 4,237,000  
Fair Value   $ (19,000) $ (99,000)  
Investment, Identifier [Axis]: Govbrands Intermediate, Inc. 3        
Variable interest rate   5.50% [15] 5.50%  
Interest Rate   10.23% [15] 6.25%  
Par Amount [15]   $ 3,814,000    
Cost   3,733,000 [15] $ (99,000)  
Fair Value   $ 3,620,000 [15] $ (99,000)  
Percentage of Net Assets   0.26% [15] (0.01%)  
Investment, Identifier [Axis]: GraphPad Software, LLC        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 875,000 $ 1,750,000 $ 1,750,000  
Fair Value $ (6,000) $ (58,000) $ (16,000)  
Investment, Identifier [Axis]: GraphPad Software, LLC 1        
Variable interest rate 5.50% [3],[4],[13] 5.50% [3],[4],[5],[16],[17] 5.50% [6],[21] 5.50% [3],[4],[13]
Interest Rate 10.94% [3],[4],[13] 10.39% [3],[4],[5],[7],[16],[17] 6.50% [6],[8],[21] 10.94% [3],[4],[13]
Par Amount $ 14,844,000 [3],[4],[13] $ 12,066,000 [3],[4],[5],[16],[17] $ 15,110,000 [6],[21]  
Cost 14,746,000 [3],[4],[13] 11,974,000 [3],[4],[5],[9],[16],[17] 14,971,000 [1],[6],[21]  
Fair Value $ 14,740,000 [3],[4],[13] $ 11,668,000 [3],[4],[5],[16],[17] $ 14,971,000 [6],[21]  
Percentage of Net Assets 0.99% [3],[4],[13] 0.84% [3],[4],[5],[16],[17] 1.26% [6],[21] 0.99% [3],[4],[13]
Investment, Identifier [Axis]: GraphPad Software, LLC 2        
Variable interest rate 5.00% [2],[4] 5.50% [3],[4],[5] 6.00% [6],[10] 5.00% [2],[4]
Interest Rate 13.50% [2],[4] 10.39% [3],[4],[5],[7] 7.00% [6],[8],[10] 13.50% [2],[4]
Par Amount [4] $ 875,000 [2] $ 2,892,000 [3],[5]    
Cost 865,000 [2],[4] 2,869,000 [3],[4],[5],[9] $ (16,000) [1],[6],[10]  
Fair Value $ 863,000 [2],[4] $ 2,797,000 [3],[4],[5] $ (16,000) [6],[10]  
Percentage of Net Assets 0.06% [2],[4] 0.20% [3],[4],[5] 0.00% [6],[10] 0.06% [2],[4]
Investment, Identifier [Axis]: GraphPad Software, LLC 3        
Variable interest rate [3],[4],[5],[11],[12]   5.50%    
Interest Rate [3],[4],[5],[7],[11],[12]   10.39%    
Cost [3],[4],[5],[9],[11],[12]   $ (13,000)    
Fair Value [3],[4],[5],[11],[12]   $ (58,000)    
Percentage of Net Assets [5],[11]   0.00%    
Investment, Identifier [Axis]: Ground Penetrating Radar Systems, LLC        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 722,000 $ 1,181,000 $ 886,000  
Fair Value $ (8,000) $ (30,000)    
Investment, Identifier [Axis]: Ground Penetrating Radar Systems, LLC 1        
Variable interest rate 4.50% [3],[13],[14] 4.75% [5],[16] 4.75% [6],[21] 4.50% [3],[13],[14]
Interest Rate 10.06% [3],[13],[14] 9.39% [5],[16] 5.75% [6],[21],[22] 10.06% [3],[13],[14]
Par Amount $ 8,616,000 [3],[13],[14] $ 10,306,000 [5],[16] $ 8,771,000 [6],[21]  
Cost 8,519,000 [3],[13],[14] 10,166,000 [5],[16] 8,619,000 [1],[6],[21]  
Fair Value $ 8,520,000 [3],[13],[14] $ 10,045,000 [5],[16] $ 8,771,000 [6],[21]  
Percentage of Net Assets 0.58% [3],[13],[14] 0.72% [5],[16] 0.74% [6],[21] 0.58% [3],[13],[14]
Investment, Identifier [Axis]: Ground Penetrating Radar Systems, LLC 2        
Variable interest rate 4.50% [3],[13],[14] 4.75% [5],[11],[15] 4.75% [6],[10] 4.50% [3],[13],[14]
Interest Rate 10.06% [3],[13],[14] 9.39% [5],[11],[15] 5.75% [6],[10],[22] 10.06% [3],[13],[14]
Par Amount $ 1,612,000 [3],[13],[14] $ 459,000 [5],[11],[15] $ 755,000 [6],[10]  
Cost 1,596,000 [3],[13],[14] 440,000 [5],[11],[15] 728,000 [1],[6],[10]  
Fair Value $ 1,594,000 [3],[13],[14] $ 418,000 [5],[11],[15] $ 755,000 [6],[10]  
Percentage of Net Assets 0.11% [3],[13],[14] 0.03% [5],[11],[15] 0.06% [6],[10] 0.11% [3],[13],[14]
Investment, Identifier [Axis]: Ground Penetrating Radar Systems, LLC 3        
Variable interest rate [3],[14],[15] 4.50%     4.50%
Interest Rate [3],[14],[15] 10.06%     10.06%
Par Amount [3],[14],[15] $ 919,000      
Cost [3],[14],[15] 905,000      
Fair Value [3],[14],[15] $ 901,000      
Percentage of Net Assets [3],[14],[15] 0.06%     0.06%
Investment, Identifier [Axis]: Groundworks, LLC 1        
Variable interest rate [3],[13],[14] 6.50%     6.50%
Interest Rate [3],[13],[14] 11.81%     11.81%
Par Amount [3],[13],[14] $ 1,057,000      
Cost [3],[13],[14] 1,027,000      
Fair Value [3],[13],[14] $ 1,046,000      
Percentage of Net Assets [3],[13],[14] 0.07%     0.07%
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 137,000 $ 1,607,000    
Fair Value $ (1,000) $ 0    
Investment, Identifier [Axis]: Groundworks, LLC 2        
Variable interest rate [3],[14],[15] 6.50%     6.50%
Interest Rate [3],[14],[15] 11.81%     11.81%
Par Amount [3],[14],[15] $ 56,000      
Cost [3],[14],[15] 53,000      
Fair Value [3],[14],[15] $ 54,000      
Unused Fee Rate 0.50%      
Unfunded Commitment $ 62,000      
Fair Value $ (1,000)      
Investment, Identifier [Axis]: Groundworks, LLC 3        
Variable interest rate [3],[14],[15] 6.50%     6.50%
Interest Rate [3],[14],[15] 11.81%     11.81%
Cost [3],[14],[15] $ (2,000)      
Fair Value [3],[14],[15] $ (1,000)      
Investment, Identifier [Axis]: Gurobi Optimization, LLC        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,607,000 $ 1,607,000 $ 1,607,000  
Investment, Identifier [Axis]: Gurobi Optimization, LLC 1        
Variable interest rate 4.75% [3],[13],[14] 5.00% [3],[4],[5],[13],[16] 5.00% [6],[21] 4.75% [3],[13],[14]
Interest Rate 10.40% [3],[13],[14],[27] 9.38% [3],[4],[5],[13],[16] 6.00% [6],[8],[21] 10.40% [3],[13],[14],[27]
Par Amount $ 12,991,000 [3],[13],[14] $ 13,091,000 [3],[4],[5],[13],[16] $ 13,226,000 [6],[21]  
Cost 12,981,000 [3],[13],[14],[20] 13,048,000 [3],[4],[5],[13],[16],[20] 13,139,000 [1],[6],[21]  
Fair Value $ 12,991,000 [3],[13],[14] $ 13,091,000 [3],[4],[5],[13],[16] $ 13,226,000 [6],[21]  
Percentage of Net Assets 0.88% [3],[13],[14] 0.94% [3],[4],[5],[13],[16] 1.11% [6],[21] 0.88% [3],[13],[14]
Investment, Identifier [Axis]: Gurobi Optimization, LLC 2        
Variable interest rate 4.75% [3],[14],[15] 5.00% [2],[3],[4],[5],[11] 5.00% [6],[10] 4.75% [3],[14],[15]
Interest Rate 10.40% [3],[14],[15],[27] 9.38% [2],[3],[4],[5],[11] 6.00% [6],[8],[10] 10.40% [3],[14],[15],[27]
Cost $ (1,000) [3],[14],[15],[20] $ (5,000) [2],[3],[4],[5],[11],[20] $ (10,000) [1],[6],[10]  
Percentage of Net Assets   0.00% [5],[11] 0.00% [6],[10]  
Investment, Identifier [Axis]: Heartland Home Services        
Variable interest rate [14],[18] 5.75%     5.75%
Interest Rate [14],[18] 11.07%     11.07%
Par Amount [14],[18] $ 1,950,000      
Cost [14],[18] 1,940,000      
Fair Value [14],[18] $ 1,942,000      
Percentage of Net Assets [14],[18] 0.13%     0.13%
Unused Fee Rate   0.75%    
Unfunded Commitment   $ 612,000    
Fair Value   $ (18,000)    
Investment, Identifier [Axis]: Heartland Home Services, Inc.        
Variable interest rate [4],[5],[11],[12],[18],[19]   5.75%    
Interest Rate [4],[5],[7],[11],[12],[18],[19]   10.10%    
Par Amount [4],[5],[11],[12],[18],[19]   $ 1,877,000    
Cost [4],[5],[9],[11],[12],[18],[19]   1,860,000    
Fair Value [4],[5],[11],[12],[18],[19]   $ 1,802,000    
Percentage of Net Assets [4],[5],[11],[12],[18],[19]   0.13%    
Unused Fee Rate   0.75%    
Unfunded Commitment   $ 612,000    
Fair Value   $ (18,000)    
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC        
Unused Fee Rate 0.50% 0.50% 0.75%  
Unfunded Commitment $ 375,000 $ 88,000 $ 955,000  
Fair Value $ (6,000) $ (7,000) $ (7,000)  
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC 1        
Variable interest rate 4.75% [3],[14],[15] 4.75% 4.75% [6] 4.75% [3],[14],[15]
Interest Rate 10.17% [3],[14],[15] 9.56% 5.75% [6],[8] 10.17% [3],[14],[15]
Par Amount $ 1,852,000 [3],[14],[15] $ 1,866,000 $ 1,885,000 [6]  
Cost 1,839,000 [3],[14],[15] 1,851,000 1,866,000 [1],[6]  
Fair Value $ 1,824,000 [3],[14],[15] $ 1,812,000 $ 1,866,000 [6]  
Percentage of Net Assets 0.12% [3],[14],[15] 0.13% 0.16% [6] 0.12% [3],[14],[15]
Unused Fee Rate   1.00% 0.75%  
Unfunded Commitment   $ 1,255,000 $ 3,816,000  
Fair Value   $ (36,000) $ (37,000)  
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC 2        
Variable interest rate 4.75% [3],[14] 4.75% [15] 4.75% [6],[10] 4.75% [3],[14]
Interest Rate 10.17% [3],[14] 9.56% [15] 5.75% [6],[8],[10] 10.17% [3],[14]
Par Amount $ 4,192,000 [3],[14] $ 2,969,000 [15] $ 424,000 [6],[10]  
Cost 4,166,000 [3],[14] 2,936,000 [15] 383,000 [1],[6],[10]  
Fair Value $ 4,130,000 [3],[14] $ 2,847,000 [15] $ 383,000 [6],[10]  
Percentage of Net Assets 0.28% [3],[14] 0.20% [15] 0.03% [6],[10] 0.28% [3],[14]
Unused Fee Rate   0.50% 0.50%  
Unfunded Commitment   $ 375,000 $ 375,000  
Fair Value   $ (11,000) $ (4,000)  
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC 3        
Variable interest rate 4.75% [3],[14],[15] 4.75% [15] 4.75% [6],[10] 4.75% [3],[14],[15]
Interest Rate 10.17% [3],[14],[15] 9.56% [15] 5.75% [6],[8],[10] 10.17% [3],[14],[15]
Cost $ (2,000) [3],[14],[15] $ (3,000) [15] $ (4,000) [1],[6],[10]  
Fair Value $ (6,000) [3],[14],[15] $ (11,000) [15] $ (4,000) [6],[10]  
Percentage of Net Assets   0.00% 0.00% [6],[10]  
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC 4        
Variable interest rate 8.00% [3],[14] 8.00% [3],[4],[5] 8.00% [6] 8.00% [3],[14]
Interest Rate 13.42% [3],[14],[27] 12.81% [3],[4],[5] 9.00% [6],[8] 13.42% [3],[14],[27]
Par Amount $ 3,960,000 [3],[14] $ 3,960,000 [3],[4],[5] $ 3,960,000 [6]  
Cost 3,900,000 [3],[14],[20] 3,892,000 [3],[4],[5] 3,881,000 [1],[6]  
Fair Value $ 3,869,000 [3],[14] $ 3,624,000 [3],[4],[5] $ 3,882,000 [6]  
Percentage of Net Assets 0.26% [3],[14] 0.26% [3],[4],[5] 0.33% [6] 0.26% [3],[14]
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC 5        
Variable interest rate 8.00% [3],[14] 8.00% [2],[3],[4],[5],[11] 8.00% [6],[10] 8.00% [3],[14]
Interest Rate 13.42% [3],[14],[27] 12.81% [2],[3],[4],[5],[11] 9.00% [6],[8],[10] 13.42% [3],[14],[27]
Par Amount $ 1,540,000 [3],[14] $ 1,452,000 [2],[3],[4],[5],[11] $ 585,000 [6],[10]  
Cost 1,515,000 [3],[14],[20] 1,426,000 [2],[3],[4],[5],[11] 574,000 [1],[6],[10]  
Fair Value $ 1,505,000 [3],[14] $ 1,322,000 [2],[3],[4],[5],[11] $ 574,000 [6],[10]  
Percentage of Net Assets 0.10% [3],[14] 0.09% [2],[3],[4],[5],[11] 0.05% [6],[10] 0.10% [3],[14]
Investment, Identifier [Axis]: Helios Service Partners, LLC 1        
Variable interest rate [3],[4] 6.25%     6.25%
Interest Rate [3],[4] 11.88%     11.88%
Par Amount [3],[4] $ 6,859,000      
Cost [3],[4] 6,693,000      
Fair Value [3],[4] $ 6,693,000      
Percentage of Net Assets [3],[4] 0.45%     0.45%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 12,898,000      
Fair Value $ (155,000)      
Investment, Identifier [Axis]: Helios Service Partners, LLC 2        
Variable interest rate [2],[3],[4] 6.25%     6.25%
Interest Rate [2],[3],[4] 11.88%     11.88%
Cost [2],[3],[4] $ (155,000)      
Fair Value [2],[3],[4] $ (155,000)      
Percentage of Net Assets [2],[3],[4] (0.01%)     (0.01%)
Unused Fee Rate 0.50%      
Unfunded Commitment $ 826,000      
Fair Value $ (20,000)      
Investment, Identifier [Axis]: Helios Service Partners, LLC 3        
Variable interest rate [3],[14],[15] 6.25%     6.25%
Interest Rate [3],[14],[15] 11.88%     11.88%
Par Amount [3],[14],[15] $ 464,000      
Cost [3],[14],[15] 433,000      
Fair Value [3],[14],[15] $ 433,000      
Percentage of Net Assets [3],[14],[15] 0.03%     0.03%
Investment, Identifier [Axis]: Help HP SCF Investor, LP (Help/Systems)        
Par Amount [23],[28] $ 9,619,564,000      
Par Amount, Shares (in shares) | shares     12,460,000  
Cost 12,460,000 [20],[23],[28] $ 12,460,000 [1],[24],[25],[29],[30] $ 13,751,000  
Fair Value $ 14,705,000 [23],[28] $ 14,732,000 [24],[25],[29],[30] $ 1,160  
Percentage of Net Assets 0.99% [23],[28] 1.05% [24],[25],[29],[30] 0.00% 0.99% [23],[28]
Investment, Identifier [Axis]: Help/Systems Holdings, Inc.        
Variable interest rate 6.75% [18] 6.75% [4],[5],[18],[19] 6.75% [6],[19] 6.75% [18]
Interest Rate 12.35% [18],[27] 10.94% [4],[5],[18],[19],[22] 7.50% [6],[8],[19] 12.35% [18],[27]
Par Amount $ 17,500,000 [18] $ 17,500,000 [4],[5],[18],[19] $ 17,500,000 [6],[19]  
Cost 17,500,000 [18],[20] 17,500,000 [1],[4],[5],[18],[19] 17,500,000 [1],[6],[19]  
Fair Value $ 15,050,000 [18] $ 16,189,000 [4],[5],[18],[19] $ 17,500,000 [6],[19]  
Percentage of Net Assets 1.02% [18] 1.16% [4],[5],[18],[19] 1.47% [6],[19] 1.02% [18]
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc.        
Variable interest rate [5],[16],[19]   5.25%    
Interest Rate [5],[16],[19],[22]   9.63%    
Par Amount [5],[16],[19]   $ 18,482,000    
Cost [1],[5],[16],[19]   18,287,000    
Fair Value [5],[16],[19]   $ 17,986,000    
Percentage of Net Assets [5],[16],[19]   1.29%    
Unused Fee Rate 1.00%      
Unfunded Commitment $ 3,754,000      
Fair Value $ (18,000)      
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc. 1        
Variable interest rate 5.50% [3],[13],[14]   5.50% 5.50% [3],[13],[14]
Interest Rate 10.92% [3],[13],[14]   6.25% 10.92% [3],[13],[14]
Par Amount $ 18,342,000 [3],[13],[14]   $ 14,558,000  
Cost 18,157,000 [3],[13],[14]   14,374,000  
Fair Value $ 18,157,000 [3],[13],[14]   $ 14,413,000  
Percentage of Net Assets 1.23% [3],[13],[14]   1.21% 1.23% [3],[13],[14]
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc. 2        
Variable interest rate 5.50% [3],[14],[15]   5.50% 5.50% [3],[14],[15]
Interest Rate 10.92% [3],[14],[15]   6.25% 10.92% [3],[14],[15]
Par Amount     $ 4,110,000  
Cost $ (18,000) [3],[14],[15]   4,055,000  
Fair Value $ (18,000) [3],[14],[15]   $ 4,069,000  
Percentage of Net Assets     0.34%  
Investment, Identifier [Axis]: High Street Buyer, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,136,000 $ 2,136,000    
Fair Value   $ (62,000)    
Investment, Identifier [Axis]: High Street Buyer, Inc. 1        
Variable interest rate 6.00% [13],[14],[18] 6.00% [5],[16],[19] 6.00% 6.00% [13],[14],[18]
Interest Rate 11.54% [13],[14],[18] 10.73% [5],[16],[19],[22] 6.75% 11.54% [13],[14],[18]
Par Amount $ 9,916,000 [13],[14],[18] $ 9,992,000 [5],[16],[19] $ 10,093,000  
Cost 9,774,000 [13],[14],[18] 9,832,000 [1],[5],[16],[19] 9,908,000  
Fair Value $ 9,916,000 [13],[14],[18] $ 9,702,000 [5],[16],[19] $ 10,093,000  
Percentage of Net Assets 0.67% [13],[14],[18] 0.69% [5],[16],[19] 0.85% 0.67% [13],[14],[18]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 3,385,000  
Investment, Identifier [Axis]: High Street Buyer, Inc. 2        
Variable interest rate 6.00% [13],[14],[18] 6.00% [5],[16],[19] 6.00% 6.00% [13],[14],[18]
Interest Rate 11.54% [13],[14],[18] 10.73% [5],[16],[19],[22] 6.75% 11.54% [13],[14],[18]
Par Amount $ 39,821,000 [13],[14],[18] $ 40,125,000 [5],[16],[19] $ 37,138,000  
Cost 39,232,000 [13],[14],[18] 39,459,000 [1],[5],[16],[19] 36,402,000  
Fair Value $ 39,821,000 [13],[14],[18] $ 38,961,000 [5],[16],[19] $ 37,138,000  
Percentage of Net Assets 2.69% [13],[14],[18] 2.79% [5],[16],[19] 3.12% 2.69% [13],[14],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,136,000  
Investment, Identifier [Axis]: High Street Buyer, Inc. 3        
Variable interest rate 6.00% [14],[15],[18] 6.00% [5],[11],[15],[19] 6.00% 6.00% [14],[15],[18]
Interest Rate 11.54% [14],[15],[18] 10.73% [5],[11],[15],[19],[22] 6.75% 11.54% [14],[15],[18]
Cost $ (25,000) [14],[15],[18] $ (31,000) [1],[5],[11],[15],[19] $ (38,000)  
Fair Value [5],[11],[15],[19]   $ (62,000)    
Percentage of Net Assets   0.00% [5],[11],[19] 0.00%  
Investment, Identifier [Axis]: Hyland Software, Inc.        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 1,879,000      
Fair Value $ (28,000)      
Investment, Identifier [Axis]: Hyland Software, Inc.1        
Variable interest rate [13],[14],[18] 6.00%     6.00%
Interest Rate [13],[14],[18] 11.32%     11.32%
Par Amount [13],[14],[18] $ 39,656,000      
Cost [13],[14],[18] 39,062,000      
Fair Value [13],[14],[18] $ 39,062,000      
Percentage of Net Assets [13],[14],[18] 2.64%     2.64%
Investment, Identifier [Axis]: Hyland Software, Inc.2        
Variable interest rate [14],[15],[18] 6.00%     6.00%
Interest Rate [14],[15],[18] 11.32%     11.32%
Cost [14],[15],[18] $ (28,000)      
Fair Value [14],[15],[18] $ (28,000)      
Investment, Identifier [Axis]: IQN Holding Corp., dba Beeline        
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 4,545,000  
Investment, Identifier [Axis]: Idera, Inc.        
Variable interest rate 6.75% [14],[18] 6.75% [4],[5],[18],[19] 6.75% [6],[19] 6.75% [14],[18]
Interest Rate 12.27% [14],[18],[27] 10.50% [4],[5],[18],[19],[22] 7.50% [6],[8],[19] 12.27% [14],[18],[27]
Par Amount $ 3,887,000 [14],[18] $ 3,887,000 [4],[5],[18],[19] $ 3,887,000 [6],[19]  
Cost 3,865,000 [14],[18],[20] 3,863,000 [1],[4],[5],[18],[19] 3,860,000 [1],[6],[19]  
Fair Value $ 3,887,000 [14],[18] $ 3,642,000 [4],[5],[18],[19] $ 3,887,000 [6],[19]  
Percentage of Net Assets 0.26% [14],[18] 0.26% [4],[5],[18],[19] 0.33% [6],[19] 0.26% [14],[18]
Investment, Identifier [Axis]: Infinite Bidco, LLC        
Variable interest rate [14],[26] 6.25%     6.25%
Interest Rate [14],[26] 11.27%     11.27%
Par Amount [14],[26] $ 12,391,000      
Cost [14],[26] 12,058,000      
Fair Value [14],[26] $ 12,274,000      
Percentage of Net Assets [14],[26] 0.83%     0.83%
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 8,500,000 $ 8,500,000  
Fair Value   $ (269,000)    
Investment, Identifier [Axis]: Infinite Bidco, LLC 1        
Variable interest rate 7.00% [26] 7.00% [4],[5],[26],[36] 7.00% [6],[36] 7.00% [26]
Interest Rate 12.43% [26],[27] 11.73% [4],[5],[26],[36] 7.50% [6],[8],[36] 12.43% [26],[27]
Par Amount $ 25,500,000 [26] $ 17,000,000 [4],[5],[26],[36] $ 17,000,000 [6],[36]  
Cost 25,444,000 [20],[26] 16,939,000 [4],[5],[26],[36] 16,931,000 [1],[6],[36]  
Fair Value $ 22,121,000 [26] $ 16,463,000 [4],[5],[26],[36] $ 17,000,000 [6],[36]  
Percentage of Net Assets 1.49% [26] 1.18% [4],[5],[26],[36] 1.43% [6],[36] 1.49% [26]
Investment, Identifier [Axis]: Infinite Bidco, LLC 2        
Variable interest rate [36]   7.00% [2],[4],[5],[11],[26] 7.00% [6],[10]  
Interest Rate [36]   11.73% [2],[4],[5],[11],[26] 7.50% [6],[8],[10]  
Cost [1],[6],[10],[36]     $ (19,000)  
Fair Value [2],[4],[5],[11],[26],[36]   $ (269,000)    
Percentage of Net Assets [36]   (0.02%) [2],[4],[5],[11],[26] 0.00% [6],[10]  
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC        
Variable interest rate [14],[23] 10.50%     10.50%
Interest Rate [4],[5],[24],[25]   10.50%    
Par Amount $ 3,250,000,000 [14],[23] $ 3,250,000,000 [4],[24]    
Par Amount, Shares (in shares) | shares   3,250,000 [5],[25] 3,250,000,000  
Cost 3,851,000 [14],[20],[23] $ 3,555,000 [1],[4],[5],[24],[25] $ 3,185,000  
Fair Value $ 3,835,000 [14],[23] $ 3,165,000 [4],[5],[24],[25] $ 3,185,000  
Percentage of Net Assets 0.26% [14],[23] 0.23% [4],[5],[24],[25] 0.27% 0.26% [14],[23]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 3,056,000  
Fair Value     $ (38,000)  
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 1        
Variable interest rate 6.05% [13],[14],[18] 6.05% [5],[16],[19] 5.50% 6.05% [13],[14],[18]
Interest Rate 11.50% [13],[14],[18] 10.81% [5],[16],[19],[22] 6.25% 11.50% [13],[14],[18]
Par Amount $ 393,000 [13],[14],[18] $ 44,059,000 [5],[16],[19] $ 58,911,000  
Cost 385,000 [13],[14],[18] 43,688,000 [1],[5],[16],[19] 58,193,000  
Fair Value $ 385,000 [13],[14],[18] $ 42,808,000 [5],[16],[19] $ 58,193,000  
Percentage of Net Assets 0.03% [13],[14],[18] 3.06% [5],[16],[19] 4.90% 0.03% [13],[14],[18]
Unused Fee Rate 1.00%      
Unfunded Commitment $ 163,000      
Fair Value $ (3,000)      
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 2        
Variable interest rate 6.00% [13],[14],[15],[18] 6.05% [5],[19] 5.75% 6.00% [13],[14],[15],[18]
Interest Rate 11.45% [13],[14],[15],[18] 10.81% [5],[19],[22] 6.75% 11.45% [13],[14],[15],[18]
Par Amount $ 85,297,000 [13],[14],[15],[18] $ 24,599,000 [5],[19] $ 24,849,000  
Cost 84,589,000 [13],[14],[15],[18] 24,373,000 [1],[5],[19] 24,545,000  
Fair Value $ 83,590,000 [13],[14],[15],[18] $ 23,900,000 [5],[19] $ 24,545,000  
Percentage of Net Assets 5.64% [13],[14],[15],[18] 1.71% [5],[19] 2.07% 5.64% [13],[14],[15],[18]
Unused Fee Rate 1.00%      
Unfunded Commitment $ 52,000      
Fair Value $ (1,000)      
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 3        
Variable interest rate 6.00% [13],[14],[15],[18] 6.05% [5],[19]   6.00% [13],[14],[15],[18]
Interest Rate 11.45% [13],[14],[15],[18] 10.81% [5],[19],[22]   11.45% [13],[14],[15],[18]
Par Amount $ 99,000 [13],[14],[15],[18] $ 17,290,000 [5],[19]    
Cost 96,000 [13],[14],[15],[18] 17,108,000 [1],[5],[19]    
Fair Value $ 94,000 [13],[14],[15],[18] $ 16,799,000 [5],[19]    
Percentage of Net Assets 0.01% [13],[14],[15],[18] 1.20% [5],[19]   0.01% [13],[14],[15],[18]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 4        
Variable interest rate [14],[15],[18] 6.50%     6.50%
Interest Rate [14],[15],[18] 11.95%     11.95%
Cost [14],[15],[18] $ (2,000)      
Fair Value [14],[15],[18] $ (1,000)      
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated        
Variable interest rate [29]   6.50%    
Interest Rate [29]   11.23%    
Par Amount [29]   $ 500,000    
Cost [29]   486,000    
Fair Value [29]   $ 489,000    
Percentage of Net Assets [29]   0.03%    
Unused Fee Rate 0.50%      
Unfunded Commitment $ 10,000      
Fair Value $ (1,000)      
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated 1        
Variable interest rate 6.50% [3],[14],[28]   5.50% [6],[21] 6.50% [3],[14],[28]
Interest Rate 12.01% [3],[14],[28]   6.50% [6],[21],[22] 12.01% [3],[14],[28]
Par Amount $ 496,000 [3],[14],[28]   $ 44,355,000 [6],[21]  
Cost 485,000 [3],[14],[28]   44,205,000 [1],[6],[21]  
Fair Value $ 468,000 [3],[14],[28]   $ 44,355,000 [6],[21]  
Percentage of Net Assets 0.03% [3],[14],[28]   3.73% [6],[21] 0.03% [3],[14],[28]
Investment, Identifier [Axis]: Intelerad Medical Systems Incorporated 2        
Variable interest rate 6.50% [3],[14],[15],[28]   5.50% [6],[10] 6.50% [3],[14],[15],[28]
Interest Rate 12.01% [3],[14],[15],[28]   6.50% [6],[10],[22] 12.01% [3],[14],[15],[28]
Par Amount [3],[14],[15],[28] $ 24,000      
Cost 23,000 [3],[14],[15],[28]   $ (10,000) [1],[6],[10]  
Fair Value [3],[14],[15],[28] $ 22,000      
Percentage of Net Assets [6],[10]     0.00%  
Investment, Identifier [Axis]: Investment One        
Interest rate floor 1.00% 1.00%   1.00%
Investment, Identifier [Axis]: Investment Three        
Interest rate floor 0.50% 0.50%   0.50%
Investment, Identifier [Axis]: Investment Two        
Interest rate floor 0.75% 0.75%   0.75%
Investment, Identifier [Axis]: Jonathan Acquisition Company        
Variable interest rate 5.00% [3],[4] 5.00% [3],[4] 5.00% [31] 5.00% [3],[4]
Interest Rate 10.49% [3],[4],[7] 9.73% [3],[4],[7] 6.00% [22],[31] 10.49% [3],[4],[7]
Par Amount $ 2,691,000 [3],[4] $ 2,712,000 [3],[4] $ 2,739,000 [31]  
Cost 2,645,000 [3],[4],[20] 2,656,000 [3],[4],[20] 2,671,000 [1],[31]  
Fair Value $ 2,658,000 [3],[4] $ 2,641,000 [3],[4] $ 2,671,000 [31]  
Percentage of Net Assets 0.18% [3],[4] 0.19% [3],[4] 0.22% [31] 0.18% [3],[4]
Investment, Identifier [Axis]: KENG Acquisition, Inc 1        
Variable interest rate [3],[14] 6.25%     6.25%
Interest Rate [3],[14] 11.64%     11.64%
Par Amount [3],[14] $ 3,221,000      
Cost [3],[14] 3,142,000      
Fair Value [3],[14] $ 3,142,000      
Percentage of Net Assets [3],[14] 0.21%     0.21%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 2,040,000      
Fair Value $ (24,000)      
Investment, Identifier [Axis]: KENG Acquisition, Inc 2        
Variable interest rate [3],[14],[15] 6.25%     6.25%
Interest Rate [3],[14],[15] 11.64%     11.64%
Par Amount [3],[14],[15] $ 400,000      
Cost [3],[14],[15] 365,000      
Fair Value [3],[14],[15] $ 371,000      
Percentage of Net Assets [3],[14],[15] 0.03%     0.03%
Unused Fee Rate 0.50%      
Unfunded Commitment $ 781,000      
Fair Value $ (19,000)      
Investment, Identifier [Axis]: KENG Acquisition, Inc 3        
Variable interest rate [3],[14],[15] 6.25%     6.25%
Interest Rate [3],[14],[15] 11.64%     11.64%
Par Amount [3],[14],[15] $ 98,000      
Cost [3],[14],[15] 76,000      
Fair Value [3],[14],[15] $ 76,000      
Percentage of Net Assets [3],[14],[15] 0.01%     0.01%
Investment, Identifier [Axis]: KPSKY Acquisition, Inc.        
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 1,126,000 $ 3,413,000 $ 1,980,000  
Fair Value $ (20,000) $ (154,000) $ (29,000)  
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. 1        
Variable interest rate 5.25% [14],[18] 5.50% [4],[5],[18],[19] 5.50% [6],[19] 5.25% [14],[18]
Interest Rate 10.72% [14],[18] 9.89% [4],[5],[7],[18],[19] 6.25% [6],[8],[19] 10.72% [14],[18]
Par Amount $ 33,951,000 [14],[18] $ 34,211,000 [4],[5],[18],[19] $ 34,557,000 [6],[19]  
Cost 33,423,000 [14],[18] 33,621,000 [4],[5],[9],[18],[19] 33,882,000 [1],[6],[19]  
Fair Value $ 33,353,000 [14],[18] $ 32,668,000 [4],[5],[18],[19] $ 33,882,000 [6],[19]  
Percentage of Net Assets 2.25% [14],[18] 2.34% [4],[5],[18],[19] 2.85% [6],[19] 2.25% [14],[18]
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. 2        
Variable interest rate 5.25% [14],[15],[18] 4.53% [4],[5],[11],[12],[18],[19] 4.50% [6],[10] 5.25% [14],[15],[18]
Interest Rate 10.72% [14],[15],[18] 12.03% [4],[5],[7],[11],[12],[18],[19] 7.75% [6],[8],[10] 10.72% [14],[15],[18]
Par Amount $ 6,648,000 [14],[15],[18] $ 4,420,000 [4],[5],[11],[12],[18],[19] $ 1,975,000 [6],[10]  
Cost 6,529,000 [14],[15],[18] 4,311,000 [4],[5],[9],[11],[12],[18],[19] 1,917,000 [1],[6],[10]  
Fair Value $ 6,510,000 [14],[15],[18] $ 4,066,000 [4],[5],[11],[12],[18],[19] $ 1,917,000 [6],[10]  
Percentage of Net Assets 0.44% [14],[15],[18] 0.29% [4],[5],[11],[12],[18],[19] 0.16% [6],[10] 0.44% [14],[15],[18]
Investment, Identifier [Axis]: KWOR Acquisition, Inc. 1        
Variable interest rate 5.25% [3],[14] 5.25% [5],[14],[18],[19] 5.25% [6],[19] 5.25% [3],[14]
Interest Rate 10.67% [3],[14] 9.63% [5],[14],[18],[19],[22] 6.00% [6],[8],[19] 10.67% [3],[14]
Par Amount $ 5,347,000 [3],[14] $ 5,376,000 [14],[18] $ 878,000 [6],[19]  
Par Amount, Shares (in shares) | shares [5],[19]   5,376    
Cost 5,260,000 [3],[14] $ 5,280,000 [1],[5],[14],[18],[19] 865,000 [1],[6],[19]  
Fair Value $ 5,248,000 [3],[14] $ 5,096,000 [5],[14],[18],[19] $ 865,000 [6],[19]  
Percentage of Net Assets 0.35% [3],[14] 0.36% [5],[14],[18],[19] 0.07% [6],[19] 0.35% [3],[14]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 3,473,000 $ 4,777,000 $ 110,000  
Fair Value $ (64,000) $ (248,000) $ (2,000)  
Investment, Identifier [Axis]: KWOR Acquisition, Inc. 2        
Variable interest rate 5.25% [3],[14],[15] 5.25% [5],[11],[14],[15],[18],[19] 4.25% [6],[10] 5.25% [3],[14],[15]
Interest Rate 10.67% [3],[14],[15] 9.63% [5],[11],[14],[15],[18],[19],[22] 7.50% [6],[8],[10] 10.67% [3],[14],[15]
Par Amount $ 1,304,000 [3],[14],[15]   $ 12,000 [6],[10]  
Par Amount, Shares (in shares) | shares [5],[11],[19]   0    
Cost 1,253,000 [3],[14],[15] $ (44,000) [1],[5],[11],[14],[15],[18],[19] 10,000 [1],[6],[10]  
Fair Value $ 1,216,000 [3],[14],[15] $ (248,000) [5],[11],[14],[15],[18],[19] $ 10,000 [6],[10]  
Percentage of Net Assets 0.08% [3],[14],[15] (0.02%) [5],[11],[14],[15],[18],[19] 0.00% [6],[10] 0.08% [3],[14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 55,000 $ 122,000    
Fair Value $ (1,000) $ (6,000)    
Investment, Identifier [Axis]: KWOR Acquisition, Inc. 3        
Variable interest rate [14],[15] 4.25% 4.25% [5],[11],[18],[19]   4.25%
Interest Rate [14],[15] 12.75% 11.75% [5],[11],[18],[19],[22]   12.75%
Par Amount [14],[15] $ 67,000      
Par Amount, Shares (in shares) | shares [5],[11],[19]   0    
Cost [14],[15] 66,000 $ (1,000) [1],[5],[11],[18],[19]    
Fair Value [14],[15] $ 65,000 $ (6,000) [5],[11],[18],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Kaseya, Inc. 1        
Variable interest rate [18] 6.25% [14] 5.75% [4],[5],[19]   6.25% [14]
Interest rate, PIK [14],[18] 2.50%     2.50%
Interest Rate [18] 11.62% [14],[27] 10.33% [4],[5],[19]   11.62% [14],[27]
Par Amount [18] $ 14,129,000 [14] $ 14,099,000 [4],[5],[19]    
Cost [18],[20] 13,947,000 [14] 13,899,000 [4],[5],[19]    
Fair Value [18] $ 14,009,000 [14] $ 13,484,000 [4],[5],[19]    
Percentage of Net Assets [18] 0.95% [14] 0.97% [4],[5],[19]   0.95% [14]
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 803,000 $ 856,000    
Fair Value $ (7,000) $ (37,000)    
Investment, Identifier [Axis]: Kaseya, Inc. 2        
Variable interest rate [18] 6.25% [14],[15] 5.75% [2],[4],[5],[11],[19]   6.25% [14],[15]
Interest rate, PIK [14],[15],[18] 2.50%     2.50%
Interest Rate [18] 11.62% [14],[15],[27] 10.33% [2],[4],[5],[11],[19]   11.62% [14],[15],[27]
Par Amount [14],[15],[18] $ 52,000      
Cost [18],[20] 47,000 [14],[15] $ (6,000) [2],[4],[5],[11],[19]    
Fair Value [18] $ 45,000 [14],[15] $ (37,000) [2],[4],[5],[11],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 641,000 $ 856,000    
Fair Value $ (5,000) $ (37,000)    
Investment, Identifier [Axis]: Kaseya, Inc. 3        
Variable interest rate [18] 6.25% [14],[15] 5.75% [2],[4],[5],[11],[19]   6.25% [14],[15]
Interest rate, PIK [14],[15],[18] 2.50%     2.50%
Interest Rate [18] 11.62% [14],[15],[27] 10.33% [2],[4],[5],[11],[19]   11.62% [14],[15],[27]
Par Amount [14],[15],[18] $ 215,000      
Cost [18],[20] 205,000 [14],[15] $ (12,000) [2],[4],[5],[11],[19]    
Fair Value [18] $ 208,000 [14],[15] $ (37,000) [2],[4],[5],[11],[19]    
Percentage of Net Assets 0.01% [14],[15],[18] 0.00% [5],[11],[19]   0.01% [14],[15],[18]
Investment, Identifier [Axis]: Keystone Agency Investors 1        
Variable interest rate 5.50% [3],[14] 6.25% [5] 5.50% 5.50% [3],[14]
Interest Rate 11.04% [3],[14] 10.98% [5],[22] 6.50% 11.04% [3],[14]
Par Amount $ 3,489,000 [3],[14] $ 3,516,000 [5] $ 2,003,000  
Cost 3,448,000 [3],[14] 3,467,000 [1],[5] 1,973,000  
Fair Value $ 3,425,000 [3],[14] $ 3,467,000 [5] $ 1,974,000  
Percentage of Net Assets 0.23% [3],[14] 0.25% [5] 0.17% 0.23% [3],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 2,578,000  
Fair Value     $ (38,000)  
Investment, Identifier [Axis]: Keystone Agency Investors 2        
Variable interest rate 5.50% [3],[14] 6.25% [5] 5.50% 5.50% [3],[14]
Interest Rate 11.04% [3],[14] 10.98% [5],[22] 6.50% 11.04% [3],[14]
Par Amount $ 4,017,000 [3],[14] $ 4,047,000 [5]    
Cost 3,971,000 [3],[14] 3,993,000 [1],[5] $ (38,000)  
Fair Value $ 3,944,000 [3],[14] $ 3,993,000 [5] $ (38,000)  
Percentage of Net Assets 0.27% [3],[14] 0.29% [5] 0.00% 0.27% [3],[14]
Investment, Identifier [Axis]: Knockout Intermediate Holdings I, Inc.        
Variable interest rate [14],[23] 11.75%     11.75%
Interest Rate [4],[5],[24],[25]   11.75%    
Par Amount $ 2,790,000 [14],[23] $ 2,790,000 [4],[24]    
Par Amount, Shares (in shares) | shares [5],[25]   2,790    
Cost 3,073,000 [14],[20],[23] $ 2,895,000 [1],[4],[5],[24],[25]    
Fair Value $ 3,147,000 [14],[23] $ 2,787,000 [4],[5],[24],[25]    
Percentage of Net Assets 0.21% [14],[23] 0.20% [4],[5],[24],[25]   0.21% [14],[23]
Investment, Identifier [Axis]: Komline Sanderson Engineering Corp. 1        
Variable interest rate 6.00% [13],[14],[26] 6.00% [5],[16],[36] 6.00% [6],[36] 6.00% [13],[14],[26]
Interest Rate 11.65% [13],[14],[26] 11.14% [5],[16],[36] 6.50% [6],[22],[36] 11.65% [13],[14],[26]
Par Amount $ 17,260,000 [13],[14],[26] $ 4,080,000 [5],[16],[36] $ 16,798,000 [6],[36]  
Cost 17,156,000 [13],[14],[26] 4,045,000 [5],[16],[36] 16,643,000 [1],[6],[36]  
Fair Value $ 16,827,000 [13],[14],[26] $ 3,837,000 [5],[16],[36] $ 16,462,000 [6],[36]  
Percentage of Net Assets 1.14% [13],[14],[26] 0.27% [5],[16],[36] 1.39% [6],[36] 1.14% [13],[14],[26]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 8,529,000 $ 8,529,000 $ 2,452,000  
Fair Value $ (214,000) $ (507,000) $ (49,000)  
Investment, Identifier [Axis]: Komline Sanderson Engineering Corp. 2        
Variable interest rate 6.00% [14],[15],[26] 6.00% [5],[11],[15],[36] 6.00% [6],[10],[36] 6.00% [14],[15],[26]
Interest Rate 11.65% [14],[15],[26] 11.14% [5],[11],[15],[36] 6.50% [6],[10],[22],[36] 11.65% [14],[15],[26]
Par Amount $ 18,613,000 [14],[15],[26]   $ 19,263,000 [6],[10],[36]  
Cost 18,453,000 [14],[15],[26] $ (72,000) [5],[11],[15],[36] 19,090,000 [1],[6],[10],[36]  
Fair Value $ 17,932,000 [14],[15],[26] $ (507,000) [5],[11],[15],[36] $ 18,877,000 [6],[10],[36]  
Percentage of Net Assets 1.21% [14],[15],[26] (0.04%) [5],[11],[15],[36] 1.59% [6],[10],[36] 1.21% [14],[15],[26]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 3,797,000 $ 2,057,000    
Fair Value $ (95,000) $ (122,000)    
Investment, Identifier [Axis]: Komline Sanderson Engineering Corp. 3        
Variable interest rate 5.00% [14],[15] 6.00% [5],[16],[36] 6.00% [6],[10],[36] 5.00% [14],[15]
Interest Rate 13.50% [14],[15] 10.67% [5],[16],[36] 6.50% [6],[10],[22],[36] 13.50% [14],[15]
Par Amount $ 949,000 [14],[15] $ 16,629,000 [5],[16],[36] $ 2,294,000 [6],[10],[36]  
Cost 926,000 [14],[15] 16,507,000 [5],[16],[36] 2,254,000 [1],[6],[10],[36]  
Fair Value $ 830,000 [14],[15] $ 15,640,000 [5],[16],[36] $ 2,199,000 [6],[10],[36]  
Percentage of Net Assets 0.06% [14],[15] 1.12% [5],[16],[36] 0.19% [6],[10],[36] 0.06% [14],[15]
Investment, Identifier [Axis]: Komline Sanderson Engineering Corp. 4        
Variable interest rate [5],[36]   6.00%    
Interest Rate [5],[36]   10.67%    
Par Amount [5],[36]   $ 19,118,000    
Cost [5],[36]   18,984,000    
Fair Value [5],[36]   $ 17,981,000    
Percentage of Net Assets [5],[36]   1.29%    
Investment, Identifier [Axis]: Komline Sanderson Engineering Corp. 5        
Variable interest rate [5],[11],[15],[36]   6.00%    
Interest Rate [5],[11],[15],[36]   10.67%    
Par Amount [5],[11],[15],[36]   $ 2,689,000    
Cost [5],[11],[15],[36]   2,659,000    
Fair Value [5],[11],[15],[36]   $ 2,407,000    
Percentage of Net Assets [5],[11],[15],[36]   0.17%    
Investment, Identifier [Axis]: LJ Avalon Holdings, LLC 1        
Variable interest rate [3],[14] 6.25%     6.25%
Interest Rate [3],[14] 11.77%     11.77%
Par Amount [3],[14] $ 4,142,000      
Cost [3],[14] 4,026,000      
Fair Value [3],[14] $ 4,052,000      
Percentage of Net Assets [3],[14] 0.27%     0.27%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 1,243,000      
Fair Value $ (27,000)      
Investment, Identifier [Axis]: LJ Avalon Holdings, LLC 2        
Variable interest rate [3],[14],[15] 6.25%     6.25%
Interest Rate [3],[14],[15] 11.77%     11.77%
Par Amount [3],[14],[15] $ 444,000      
Cost [3],[14],[15] 418,000      
Fair Value [3],[14],[15] $ 408,000      
Percentage of Net Assets [3],[14],[15] 0.03%     0.03%
Unused Fee Rate 0.50%      
Unfunded Commitment $ 675,000      
Fair Value $ (15,000)      
Investment, Identifier [Axis]: LJ Avalon Holdings, LLC 3        
Variable interest rate [3],[14],[15] 6.25%     6.25%
Interest Rate [3],[14],[15] 11.77%     11.77%
Cost [3],[14],[15] $ (18,000)      
Fair Value [3],[14],[15] (15,000)      
Investment, Identifier [Axis]: LUV Car Wash        
Par Amount [14],[23] 123,000      
Cost [14],[20],[23] 123,000      
Fair Value [14],[23] $ 88,000      
Percentage of Net Assets [14],[23] 0.01%     0.01%
Investment, Identifier [Axis]: LUV Car Wash Group, LLC        
Variable interest rate [3],[14],[15] 7.00%     7.00%
Interest Rate [3],[14],[15] 12.40%     12.40%
Par Amount [3],[14],[15] $ 716,000      
Cost [3],[14],[15] 709,000      
Fair Value [3],[14],[15] $ 712,000      
Percentage of Net Assets [3],[14],[15] 0.05%     0.05%
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 274,000 $ 257,000    
Fair Value $ (1,000) $ (5,000)    
Investment, Identifier [Axis]: LUV Car Wash Group, LLC 1        
Variable interest rate [3],[4],[5],[11],[12]   5.50%    
Interest Rate [3],[4],[5],[7],[11],[12]   9.24%    
Par Amount [3],[4],[5],[11],[12]   $ 372,000    
Cost [3],[4],[5],[9],[11],[12]   367,000    
Fair Value [3],[4],[5],[11],[12]   $ 359,000    
Percentage of Net Assets [3],[4],[5],[11],[12]   0.03%    
Investment, Identifier [Axis]: LUV Car Wash Group, LLC 2        
Variable interest rate [3],[4],[5]   5.50%    
Interest Rate [3],[4],[5],[7]   9.24%    
Par Amount [3],[4],[5]   $ 349,000    
Cost [3],[4],[5],[9]   346,000    
Fair Value [3],[4],[5]   $ 341,000    
Percentage of Net Assets [3],[4],[5]   0.02%    
Investment, Identifier [Axis]: LUV Car Wash Holdings, LLC        
Par Amount [4],[24]   $ 116,000    
Par Amount, Shares (in shares) | shares [5],[25]   116    
Cost [1],[4],[5],[24],[25]   $ 116,000    
Fair Value [4],[5],[24],[25]   $ 116,000    
Percentage of Net Assets [4],[5],[24],[25]   0.01%    
Investment, Identifier [Axis]: LegitScript 1        
Variable interest rate [4],[5],[18],[19]   5.25%    
Interest Rate [4],[5],[18],[19]   8.23%    
Par Amount [4],[5],[18],[19]   $ 28,108,000    
Cost [4],[5],[18],[19],[20]   27,580,000    
Fair Value [4],[5],[18],[19]   $ 27,580,000    
Percentage of Net Assets [4],[5],[18],[19]   1.97%    
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 7,654,000    
Fair Value   $ (68,000)    
Investment, Identifier [Axis]: LegitScript 2        
Variable interest rate [2],[4],[5],[11],[18],[19]   5.25%    
Interest Rate [2],[4],[5],[11],[18],[19]   9.57%    
Cost [2],[4],[5],[11],[18],[19],[20]   $ (68,000)    
Fair Value [2],[4],[5],[11],[18],[19]   $ (68,000)    
Percentage of Net Assets [5],[11],[19]   0.00%    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 3,917,000    
Fair Value   $ (72,000)    
Investment, Identifier [Axis]: LegitScript 3        
Variable interest rate [2],[4],[5],[11],[18],[19]   5.25%    
Interest Rate [2],[4],[5],[11],[18],[19]   9.57%    
Par Amount [2],[4],[5],[11],[18],[19]   $ 250,000    
Cost [2],[4],[5],[11],[18],[19],[20]   174,000    
Fair Value [2],[4],[5],[11],[18],[19]   $ 174,000    
Percentage of Net Assets [2],[4],[5],[11],[18],[19]   0.01%    
Investment, Identifier [Axis]: LegitScript, LLC 1        
Variable interest rate [14],[18] 5.75%     5.75%
Interest Rate [14],[18],[27] 11.07%     11.07%
Par Amount [14],[18] $ 26,636,000      
Cost [14],[18],[20] 26,179,000      
Fair Value [14],[18] $ 26,183,000      
Percentage of Net Assets [14],[18] 1.77%     1.77%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 6,612,000      
Fair Value $ (112,000)      
Investment, Identifier [Axis]: LegitScript, LLC 2        
Variable interest rate [14],[15],[18] 5.75%     5.75%
Interest Rate [14],[15],[18],[27] 11.07%     11.07%
Par Amount [14],[15],[18] $ 704,000      
Cost [14],[15],[18],[20] 639,000      
Fair Value [14],[15],[18] $ 580,000      
Percentage of Net Assets [14],[15],[18] 0.04%     0.04%
Unused Fee Rate 0.50%      
Unfunded Commitment $ 3,167,000      
Fair Value $ (54,000)      
Investment, Identifier [Axis]: LegitScript, LLC 3        
Variable interest rate [14],[15],[18] 5.75%     5.75%
Interest Rate [14],[15],[18],[27] 11.07%     11.07%
Par Amount | € [14],[15],[18]       € 1,000
Cost | € [14],[15],[18],[20]       934
Fair Value | € [14],[15],[18]       € 929
Percentage of Net Assets [14],[15],[18] 0.06%     0.06%
Investment, Identifier [Axis]: Lightspeed Buyer, Inc.        
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 4,050,000 $ 4,050,000  
Fair Value   $ (118,000) $ (180,000)  
Investment, Identifier [Axis]: Lightspeed Buyer, Inc. 1        
Variable interest rate 5.25% [3],[13],[14] 5.50% 5.75% [6],[21] 5.25% [3],[13],[14]
Interest Rate 10.70% [3],[13],[14] 9.98% 6.75% [6],[8],[21] 10.70% [3],[13],[14]
Par Amount $ 12,572,000 [3],[13],[14] $ 12,669,000 $ 12,797,000 [6],[21]  
Cost 12,396,000 [3],[13],[14] 12,442,000 12,506,000 [1],[6],[21]  
Fair Value $ 12,486,000 [3],[13],[14] $ 12,300,000 $ 12,229,000 [6],[21]  
Percentage of Net Assets 0.84% [3],[13],[14] 0.88% 1.03% [6],[21] 0.84% [3],[13],[14]
Investment, Identifier [Axis]: Lightspeed Buyer, Inc. 2        
Variable interest rate 5.25% [3],[14] 5.50% 5.75% [6],[10] 5.25% [3],[14]
Interest Rate 10.70% [3],[14] 9.98% 6.75% [6],[8],[10] 10.70% [3],[14]
Par Amount $ 9,936,000 [3],[14] $ 9,234,000 $ 9,328,000 [6],[10]  
Cost 9,784,000 [3],[14] 9,053,000 9,056,000 [1],[6],[10]  
Fair Value $ 9,869,000 [3],[14] $ 8,966,000 $ 8,734,000 [6],[10]  
Percentage of Net Assets 0.67% [3],[14] 0.64% 0.73% [6],[10] 0.67% [3],[14]
Investment, Identifier [Axis]: Lightspeed Buyer, Inc. 3        
Variable interest rate [15]   5.50%    
Interest Rate [15]   9.98%    
Cost [15]   $ (28,000)    
Fair Value [15]   $ (118,000)    
Percentage of Net Assets [15]   (0.01%)    
Investment, Identifier [Axis]: Lightspeed Solution, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,195,000 $ 2,439,000    
Fair Value $ (45,000) $ (89,000)    
Investment, Identifier [Axis]: Lightspeed Solution, LLC 1        
Variable interest rate [18] 6.50% [14] 6.50% [4],[5],[19]   6.50% [14]
Interest rate, PIK [14],[18] 2.17%     2.17%
Interest Rate [18] 11.82% [14] 10.82% [4],[5],[7],[19]   11.82% [14]
Par Amount [18] $ 7,803,000 [14] $ 7,585,000 [4],[5],[19]    
Cost [18] 7,684,000 [14] 7,451,000 [4],[5],[9],[19]    
Fair Value [18] $ 7,642,000 [14] $ 7,308,000 [4],[5],[19]    
Percentage of Net Assets [18] 0.52% [14] 0.52% [4],[5],[19]   0.52% [14]
Investment, Identifier [Axis]: Lightspeed Solution, LLC 2        
Variable interest rate [18] 6.50% [14],[15] 6.50% [4],[5],[11],[12],[19]   6.50% [14],[15]
Interest rate, PIK [14],[15],[18] 2.17%     2.17%
Interest Rate [18] 11.82% [14],[15] 10.82% [4],[5],[7],[11],[12],[19]   11.82% [14],[15]
Par Amount [14],[15],[18] $ 249,000      
Cost [18] 229,000 [14],[15] $ (21,000) [4],[5],[9],[11],[12],[19]    
Fair Value [18] $ 199,000 [14],[15] $ (89,000) [4],[5],[11],[12],[19]    
Percentage of Net Assets [18] 0.01% [14],[15] (0.01%) [4],[5],[11],[12],[19]   0.01% [14],[15]
Investment, Identifier [Axis]: Long Term Care Group, Inc.        
Variable interest rate 7.00% [14],[18] 6.00%   7.00% [14],[18]
Interest rate, PIK [14],[18] 6.00%     6.00%
Interest Rate 12.58% [14],[18] 10.34%   12.58% [14],[18]
Par Amount $ 5,013,000 [14],[18] $ 4,963,000    
Cost 4,936,000 [14],[18] 4,875,000    
Fair Value $ 4,163,000 [14],[18] $ 4,768,000    
Percentage of Net Assets 0.28% [14],[18] 0.34%   0.28% [14],[18]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,150,000 $ 2,150,000    
Fair Value $ (16,000) $ (64,000)    
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 1        
Variable interest rate 6.00% [3],[13],[14] 6.25% [5],[16] 5.75% [6],[21] 6.00% [3],[13],[14]
Interest Rate 11.52% [3],[13],[14] 9.75% [5],[16] 6.75% [6],[8],[21] 11.52% [3],[13],[14]
Par Amount $ 32,681,000 [3],[13],[14] $ 121,000 [5],[16] $ 28,678,000 [6],[21]  
Cost 32,212,000 [3],[13],[14] 117,000 [5],[16] 28,139,000 [1],[6],[21]  
Fair Value $ 32,274,000 [3],[13],[14] $ 117,000 [5],[16] $ 28,392,000 [6],[21]  
Percentage of Net Assets 2.18% [3],[13],[14] 0.01% [5],[16] 2.39% [6],[21] 2.18% [3],[13],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 1,585,000  
Fair Value     $ (16,000)  
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 2        
Variable interest rate 6.00% [3],[14] 6.50% [5] 5.75% [6],[10] 6.00% [3],[14]
Interest Rate 11.52% [3],[14] 11.46% [5] 6.75% [6],[8],[10] 11.52% [3],[14]
Par Amount $ 3,683,000 [3],[14] $ 4,419,000 [5] $ 2,160,000 [6],[10]  
Cost 3,631,000 [3],[14] 4,332,000 [5] 2,104,000 [1],[6],[10]  
Fair Value $ 3,633,000 [3],[14] $ 4,332,000 [5] $ 2,122,000 [6],[10]  
Percentage of Net Assets 0.25% [3],[14] 0.31% [5] 0.18% [6],[10] 0.25% [3],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,500,000  
Fair Value     $ (25,000)  
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 3        
Variable interest rate 6.00% [3],[14],[15] 6.25% [5],[16] 5.75% [6],[10] 6.00% [3],[14],[15]
Interest Rate 11.52% [3],[14],[15] 9.50% [5],[16] 6.75% [6],[8],[10] 11.52% [3],[14],[15]
Par Amount $ 1,350,000 [3],[14],[15] $ 28,391,000 [5],[16]    
Cost 1,318,000 [3],[14],[15] 27,937,000 [5],[16] $ (46,000) [1],[6],[10]  
Fair Value $ 1,316,000 [3],[14],[15] $ 27,550,000 [5],[16] $ (25,000) [6],[10]  
Percentage of Net Assets 0.09% [3],[14],[15] 1.97% [5],[16] 0.00% [6],[10] 0.09% [3],[14],[15]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 4        
Variable interest rate [5]   6.25%    
Interest Rate [5]   9.50%    
Par Amount [5]   $ 3,711,000    
Cost [5]   3,650,000    
Fair Value [5]   $ 3,601,000    
Percentage of Net Assets [5]   0.26%    
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 5        
Variable interest rate [5],[11],[15]   6.00%    
Interest Rate [5],[11],[15]   10.94%    
Par Amount [5],[11],[15]   $ 350,000    
Cost [5],[11],[15]   312,000    
Fair Value [5],[11],[15]   $ 276,000    
Percentage of Net Assets [5],[11],[15]   0.02%    
Investment, Identifier [Axis]: MRI Software, LLC        
Variable interest rate [6]     5.50%  
Interest Rate [6]     6.50%  
Par Amount [6]     $ 49,090,000  
Cost [6]     48,603,000  
Fair Value [6]     $ 49,090,000  
Percentage of Net Assets [6]     4.13%  
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,215,000 $ 2,215,000    
Fair Value $ (18,000) $ (45,000)    
Investment, Identifier [Axis]: MRI Software, LLC 1        
Variable interest rate 5.50% [3],[13],[14] 5.50% [3],[5],[13],[14],[16] 5.50% [6],[10],[21] 5.50% [3],[13],[14]
Interest Rate 10.99% [3],[13],[14] 10.23% [3],[5],[13],[14],[16] 6.50% [6],[10],[21] 10.99% [3],[13],[14]
Par Amount $ 59,029,000 [3],[13],[14] $ 59,485,000 [3],[5],[13],[14],[16] $ 362,000 [6],[10],[21]  
Cost 58,710,000 [3],[13],[14] 59,075,000 [3],[5],[13],[14],[16] 338,000 [6],[10],[21]  
Fair Value $ 58,544,000 [3],[13],[14] $ 58,278,000 [3],[5],[13],[14],[16] $ 362,000 [6],[10],[21]  
Percentage of Net Assets 3.95% [3],[13],[14] 4.17% [3],[5],[13],[14],[16] 0.03% [6],[10],[21] 3.95% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 10,637,000  
Investment, Identifier [Axis]: MRI Software, LLC 2        
Variable interest rate 5.50% [3],[14],[15] 5.50% [3],[5],[10],[11],[14],[15] 5.50% [6],[10] 5.50% [3],[14],[15]
Interest Rate 10.99% [3],[14],[15],[27] 10.23% [3],[5],[10],[11],[14],[15] 6.50% [6],[10] 10.99% [3],[14],[15],[27]
Cost $ (9,000) [3],[14],[15],[20] $ (12,000) [3],[5],[10],[11],[14],[15] $ (15,000) [6],[10]  
Fair Value [3],[14],[15] $ (18,000) $ (45,000) [5],[10],[11]    
Percentage of Net Assets [10]   0.00% [5],[11] 0.00% [6]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,215,000  
Investment, Identifier [Axis]: MSM Acquisitions, Inc. 1        
Variable interest rate   6.00% [5],[16] 6.00%  
Interest Rate   10.75% [5],[16] 7.00%  
Par Amount   $ 31,570,000 [5],[16] $ 31,890,000  
Cost   31,179,000 [5],[16] 31,412,000  
Fair Value   $ 30,815,000 [5],[16] $ 31,571,000  
Percentage of Net Assets   2.21% [5],[16] 2.66%  
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 23,439,000 $ 26,515,000  
Fair Value   $ (560,000) $ (265,000)  
Investment, Identifier [Axis]: MSM Acquisitions, Inc. 2        
Variable interest rate   6.00% [5],[11],[15] 6.00%  
Interest Rate   10.75% [5],[11],[15] 7.00%  
Par Amount   $ 12,743,000 [5],[11],[15] $ 9,782,000  
Cost   12,493,000 [5],[11],[15] 9,488,000  
Fair Value   $ 11,878,000 [5],[11],[15] $ 9,419,000  
Percentage of Net Assets   0.85% [5],[11],[15] 0.79%  
Unused Fee Rate   0.50% 0.50%  
Unfunded Commitment   $ 2,112,000 $ 3,582,000  
Fair Value   $ (51,000) $ (36,000)  
Investment, Identifier [Axis]: MSM Acquisitions, Inc. 3        
Variable interest rate   6.00% [5],[11],[15] 5.00%  
Interest Rate   10.75% [5],[11],[15] 8.25%  
Par Amount   $ 1,836,000 [5],[11],[15] $ 365,000  
Cost   1,784,000 [5],[11],[15] 300,000  
Fair Value   $ 1,741,000 [5],[11],[15] $ 326,000  
Percentage of Net Assets   0.12% [5],[11],[15] 0.03%  
Investment, Identifier [Axis]: Magnolia Wash Holdings        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 71,000 $ 71,000    
Fair Value $ (7,000) $ (3,000)    
Investment, Identifier [Axis]: Magnolia Wash Holdings 1        
Variable interest rate [3] 6.50% [14] 6.50% [4],[5]   6.50% [14]
Interest Rate [3] 12.01% [14] 10.32% [4],[5],[7]   12.01% [14]
Par Amount [3] $ 3,263,000 [14] $ 3,767,000 [4],[5]    
Cost [3] 3,207,000 [14] 3,696,000 [4],[5],[9]    
Fair Value [3] $ 2,935,000 [14] $ 3,608,000 [4],[5]    
Percentage of Net Assets [3] 0.20% [14] 0.26% [4],[5]   0.20% [14]
Investment, Identifier [Axis]: Magnolia Wash Holdings 2        
Variable interest rate [3] 6.50% [14] 6.50% [4]   6.50% [14]
Interest Rate [3] 12.01% [14] 10.32% [4],[7]   12.01% [14]
Par Amount [3] $ 700,000 [14] $ 706,000 [4]    
Cost [3] 689,000 [14] 692,000 [4],[9]    
Fair Value [3] $ 630,000 [14] $ 676,000 [4]    
Percentage of Net Assets [3] 0.04% [14] 0.05% [4]   0.04% [14]
Investment, Identifier [Axis]: Magnolia Wash Holdings 3        
Variable interest rate [3] 6.50% [14],[15] 6.50% [4],[12]   6.50% [14],[15]
Interest Rate [3] 12.01% [14],[15] 10.32% [4],[7],[12]   12.01% [14],[15]
Par Amount [3] $ 87,000 [14],[15] $ 87,000 [4],[12]    
Cost [3] 85,000 [14],[15] 84,000 [4],[9],[12]    
Fair Value [3] $ 71,000 [14],[15] $ 81,000 [4],[12]    
Percentage of Net Assets [3],[4],[12]   0.01%    
Investment, Identifier [Axis]: Majesco        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,575,000 $ 1,575,000 $ 1,575,000  
Fair Value $ (23,000) $ (66,000)    
Investment, Identifier [Axis]: Majesco 1        
Variable interest rate 7.38% [3],[13],[14] 7.25% [5],[16] 7.25% 7.38% [3],[13],[14]
Interest Rate 12.77% [3],[13],[14] 11.98% [5],[16],[22] 8.25% 12.77% [3],[13],[14]
Par Amount $ 23,241,000 [3],[13],[14] $ 23,421,000 [5],[16] $ 23,660,000  
Cost 22,830,000 [3],[13],[14] 22,948,000 [1],[5],[16] 23,104,000  
Fair Value $ 22,904,000 [3],[13],[14] $ 22,447,000 [5],[16] $ 23,660,000  
Percentage of Net Assets 1.55% [3],[13],[14] 1.61% [5],[16] 1.99% 1.55% [3],[13],[14]
Investment, Identifier [Axis]: Majesco 2        
Variable interest rate 7.38% [3],[14],[15] 7.25% [5],[11],[15] 7.25% 7.38% [3],[14],[15]
Interest Rate 12.77% [3],[14],[15] 11.98% [5],[11],[15],[22] 8.25% 12.77% [3],[14],[15]
Cost $ (23,000) [3],[14],[15] $ (29,000) [1],[5],[11],[15] $ (37,000)  
Fair Value [15] $ (23,000) [3],[14] $ (66,000) [5],[11]    
Percentage of Net Assets   0.00% [5],[11] 0.00%  
Investment, Identifier [Axis]: Mammoth Holdings, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 953,000 $ 953,000    
Fair Value $ (4,000) $ 0    
Investment, Identifier [Axis]: Mammoth Holdings, LLC 1        
Variable interest rate 6.50% [3],[13],[14] 6.00% [3],[4],[17] 6.00% [6],[21] 6.50% [3],[13],[14]
Interest Rate 12.01% [3],[13],[14] 9.82% [3],[4],[7],[17] 7.00% [6],[8],[21] 12.01% [3],[13],[14]
Par Amount $ 43,665,000 [3],[13],[14] $ 8,033,000 [3],[4],[17] $ 8,117,000 [6],[21]  
Cost 43,532,000 [3],[13],[14] 8,008,000 [3],[4],[9],[17] 8,058,000 [1],[6],[21]  
Fair Value $ 43,495,000 [3],[13],[14] $ 8,033,000 [3],[4],[17] $ 8,117,000 [6],[21]  
Percentage of Net Assets 2.94% [3],[13],[14] 0.57% [3],[4],[17] 0.68% [6],[21] 2.94% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 7,434,000  
Investment, Identifier [Axis]: Mammoth Holdings, LLC 2        
Variable interest rate 6.50% [3],[14],[15] 6.00% [3],[4] 6.00% [6],[10] 6.50% [3],[14],[15]
Interest Rate 12.01% [3],[14],[15] 9.82% [3],[4],[7] 7.00% [6],[8],[10] 12.01% [3],[14],[15]
Par Amount   $ 35,966,000 [3],[4] $ 28,858,000 [6],[10]  
Cost $ (3,000) [3],[14],[15] 35,846,000 [3],[4],[9] 28,590,000 [1],[6],[10]  
Fair Value $ (4,000) [3],[14],[15] $ 35,966,000 [3],[4] $ 28,858,000 [6],[10]  
Percentage of Net Assets   2.57% [3],[4] 2.43% [6],[10]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 953,000  
Investment, Identifier [Axis]: Mammoth Holdings, LLC 3        
Variable interest rate   6.00% [3],[4],[12] 6.00% [6],[10]  
Interest Rate   9.82% [3],[4],[7],[12] 7.00% [6],[8],[10]  
Cost   $ (3,000) [3],[4],[9],[12] $ (6,000) [1],[6],[10]  
Percentage of Net Assets   0.00% 0.00% [6],[10]  
Investment, Identifier [Axis]: Mantech International CP 1        
Variable interest rate [4],[18] 5.75% 5.75%   5.75%
Interest Rate [4],[7],[18] 11.12% 9.58%   11.12%
Par Amount [4],[18] $ 356,000 $ 359,000    
Cost [4],[18],[20] 350,000 352,000    
Fair Value [4],[18] $ 356,000 $ 350,000    
Percentage of Net Assets [4],[18] 0.02% 0.03%   0.02%
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 56,000 $ 87,000    
Fair Value   $ (2,000)    
Investment, Identifier [Axis]: Mantech International CP 2        
Variable interest rate [4],[18] 5.75% [2] 5.75% [12]   5.75% [2]
Interest Rate [4],[7],[18] 11.12% [2] 9.58% [12]   11.12% [2]
Par Amount [2],[4],[18] $ 31,000      
Cost [4],[18],[20] 30,000 [2] $ (1,000) [12]    
Fair Value [4],[18] $ 31,000 [2] $ (2,000) [12]    
Percentage of Net Assets   0.00%    
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 53,000 $ 53,000    
Fair Value   $ (1,000)    
Investment, Identifier [Axis]: Mantech International CP 3        
Variable interest rate [4],[18] 5.75% [2] 5.75% [12]   5.75% [2]
Interest Rate [4],[7],[18] 11.12% [2] 9.58% [12]   11.12% [2]
Cost [4],[18],[20] $ (1,000) [2] $ (1,000) [12]    
Fair Value [4],[12],[18]   $ (2,000)    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Matrix Parent, Inc.        
Variable interest rate [18] 8.00% [14] 8.00% [4],[5],[19]   8.00% [14]
Interest Rate [18] 13.56% [14],[27] 12.55% [4],[5],[19],[22]   13.56% [14],[27]
Par Amount [18] $ 10,667,000 [14] $ 10,667,000 [4],[5],[19]    
Cost [18] 10,505,000 [14],[20] 10,493,000 [1],[4],[5],[19]    
Fair Value [18] $ 6,494,000 [14] $ 9,757,000 [4],[5],[19]    
Percentage of Net Assets [18] 0.44% [14] 0.70% [4],[5],[19]   0.44% [14]
Investment, Identifier [Axis]: Montana Buyer, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 466,000 $ 466,000    
Fair Value $ (8,000) $ (16,000)    
Investment, Identifier [Axis]: Montana Buyer, Inc. 1        
Variable interest rate [18] 5.75% [14] 5.75% [4],[5],[19]   5.75% [14]
Interest Rate [18] 11.07% [14],[27] 8.70% [4],[5],[19]   11.07% [14],[27]
Par Amount [18]   $ 4,131,000 [4],[5],[19]   € 4,100 [14]
Cost [18],[20]   4,051,000 [4],[5],[19]   4,028 [14]
Fair Value [18]   $ 3,991,000 [4],[5],[19]   € 4,032 [14]
Percentage of Net Assets [18] 0.27% [14] 0.29% [4],[5],[19]   0.27% [14]
Investment, Identifier [Axis]: Montana Buyer, Inc. 2        
Variable interest rate [18] 5.75% [14],[15] 5.75% [2],[4],[5],[11],[19]   5.75% [14],[15]
Interest Rate [18] 11.07% [14],[15],[27] 8.70% [2],[4],[5],[11],[19]   11.07% [14],[15],[27]
Cost [18],[20]   $ (9,000) [2],[4],[5],[11],[19]   € (7) [14],[15]
Fair Value [18]   $ (16,000) [2],[4],[5],[11],[19]   € (8) [14],[15]
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Nellson Nutraceutical, Inc.        
Variable interest rate [3] 5.75% [13],[14] 5.75% [4],[17]   5.75% [13],[14]
Interest Rate [3] 11.15% [13],[14] 10.17% [4],[7],[17]   11.15% [13],[14]
Par Amount [3] $ 18,452,000 [13],[14] $ 23,592,000 [4],[17]    
Cost [3] 18,280,000 [13],[14] 23,439,000 [4],[9],[17]    
Fair Value [3] $ 18,267,000 [13],[14] $ 23,476,000 [4],[17]    
Percentage of Net Assets [3] 1.23% [13],[14] 1.68% [4],[17]   1.23% [13],[14]
Investment, Identifier [Axis]: Nellson Nutraceutical, Inc. 1        
Variable interest rate [6],[21]     5.25%  
Interest Rate [6],[8],[21]     6.25%  
Par Amount [6],[21]     $ 24,606,000  
Cost [1],[6],[21]     24,292,000  
Fair Value [6],[21]     $ 24,606,000  
Percentage of Net Assets [6],[21]     2.07%  
Investment, Identifier [Axis]: Nellson Nutraceutical, Inc. 2        
Variable interest rate [6],[21]     4.25%  
Interest Rate [6],[8],[21]     7.50%  
Par Amount [6],[21]     $ 66,000  
Cost [1],[6],[21]     65,000  
Fair Value [6],[21]     $ 66,000  
Percentage of Net Assets [6],[21]     0.01%  
Investment, Identifier [Axis]: Netwrix Corporation And Concept Searching, Inc. 1        
Variable interest rate [18] 5.00% [14] 5.00% [4],[5],[19]   5.00% [14]
Interest Rate [18] 10.30% [14],[27] 9.70% [4],[5],[19]   10.30% [14],[27]
Par Amount [18]   $ 4,605,000 [4],[5],[19]   € 5,468 [14]
Cost [18],[20]   4,562,000 [4],[5],[19]   5,424 [14]
Fair Value [18]   $ 4,358,000 [4],[5],[19]   € 5,363 [14]
Percentage of Net Assets [18] 0.36% [14] 0.31% [4],[5],[19]   0.36% [14]
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 1,562,000 $ 1,652,000    
Fair Value $ (30,000) $ (89,000)    
Investment, Identifier [Axis]: Netwrix Corporation And Concept Searching, Inc. 2        
Variable interest rate [18] 5.00% [14],[15] 5.00% [4],[5],[11],[19]   5.00% [14],[15]
Interest Rate [18] 10.30% [14],[15],[27] 9.70% [4],[5],[11],[19]   10.30% [14],[15],[27]
Par Amount [4],[5],[11],[18],[19]   $ 812,000    
Cost [18],[20]   798,000 [4],[5],[11],[19]   € (8) [14],[15]
Fair Value [18]   $ 680,000 [4],[5],[11],[19]   € (30) [14],[15]
Percentage of Net Assets [4],[5],[11],[18],[19]   0.05%    
Unused Fee Rate 0.25% 0.50%    
Unfunded Commitment $ 323,000 $ 431,000    
Fair Value $ (6,000) $ (23,000)    
Investment, Identifier [Axis]: Netwrix Corporation And Concept Searching, Inc. 3        
Variable interest rate [18] 5.00% [14],[15] 5.00% [2],[4],[5],[11],[19]   5.00% [14],[15]
Interest Rate [18] 10.30% [14],[15],[27] 9.70% [2],[4],[5],[11],[19]   10.30% [14],[15],[27]
Par Amount | € [14],[15],[18]       € 108
Cost [18],[20]   $ (4,000) [2],[4],[5],[11],[19]   104 [14],[15]
Fair Value [18]   $ (23,000) [2],[4],[5],[11],[19]   € 99 [14],[15]
Percentage of Net Assets 0.01% [14],[15],[18] 0.00% [5],[11],[19]   0.01% [14],[15],[18]
Investment, Identifier [Axis]: Oak Purchaser, Inc. 1        
Variable interest rate [18] 5.50% [14] 5.50% [4],[5],[19]   5.50% [14]
Interest Rate [18] 10.97% [14],[27] 9.48% [4],[5],[19]   10.97% [14],[27]
Par Amount [18]   $ 2,792,000 [4],[5],[19]   € 2,792 [14]
Cost [18],[20]   2,766,000 [4],[5],[19]   2,769 [14]
Fair Value [18]   $ 2,752,000 [4],[5],[19]   € 2,723 [14]
Percentage of Net Assets [18] 0.18% [14] 0.20% [4],[5],[19]   0.18% [14]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 1,031,000 $ 1,236,000    
Fair Value $ (25,000) $ (18,000)    
Investment, Identifier [Axis]: Oak Purchaser, Inc. 2        
Variable interest rate [18] 5.50% [14],[15] 5.50% [2],[4],[5],[11],[19]   5.50% [14],[15]
Interest Rate [18] 10.97% [14],[15],[27] 9.48% [2],[4],[5],[11],[19]   10.97% [14],[15],[27]
Par Amount [18]   $ 625,000 [2],[4],[5],[11],[19]   € 830 [14],[15]
Cost [18],[20]   609,000 [2],[4],[5],[11],[19]   816 [14],[15]
Fair Value [18]   $ 599,000 [2],[4],[5],[11],[19]   € 784 [14],[15]
Percentage of Net Assets [18] 0.05% [14],[15] 0.04% [2],[4],[5],[11],[19]   0.05% [14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 372,000 $ 372,000    
Fair Value $ (9,000) $ (5,000)    
Investment, Identifier [Axis]: Oak Purchaser, Inc. 3        
Variable interest rate [18] 5.50% [14],[15] 5.50% [2],[4],[5],[11],[19]   5.50% [14],[15]
Interest Rate [18] 10.97% [14],[15],[27] 9.48% [2],[4],[5],[11],[19]   10.97% [14],[15],[27]
Cost [18]   $ (3,000) [2],[4],[5],[11],[19]   € (3) [14],[15],[20]
Fair Value [18]   $ (5,000) [2],[4],[5],[11],[19]   € (9) [14],[15]
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Oakbridge Insurance Agency, LLC 1        
Variable interest rate 5.75% [3],[14] 5.75% [5]   5.75% [3],[14]
Interest Rate 11.17% [3],[14] 10.17% [5],[22]   11.17% [3],[14]
Par Amount $ 1,074,000 [3],[14] $ 1,078,000 [5]    
Cost 1,060,000 [3],[14] 1,062,000 [1],[5]    
Fair Value $ 1,062,000 [3],[14] $ 1,062,000 [5]    
Percentage of Net Assets 0.07% [3],[14] 0.08% [5]   0.07% [3],[14]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 283,000 $ 399,000    
Fair Value $ (3,000) $ (3,000)    
Investment, Identifier [Axis]: Oakbridge Insurance Agency, LLC 2        
Variable interest rate [15] 5.75% [3],[14] 5.75% [5],[11]   5.75% [3],[14]
Interest Rate [15] 11.17% [3],[14] 10.17% [5],[11],[22]   11.17% [3],[14]
Par Amount [15] $ 176,000 [3],[14] $ 60,000 [5],[11]    
Cost [15] 172,000 [3],[14] 56,000 [1],[5],[11]    
Fair Value [15] $ 171,000 [3],[14] $ 56,000 [5],[11]    
Percentage of Net Assets 0.01% [3],[14],[15] 0.00% [5],[11]   0.01% [3],[14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 29,000 $ 36,000    
Investment, Identifier [Axis]: Oakbridge Insurance Agency, LLC 3        
Variable interest rate [15] 5.75% [3],[14] 5.75% [5],[11]   5.75% [3],[14]
Interest Rate [15] 11.17% [3],[14] 10.17% [5],[11],[22]   11.17% [3],[14]
Par Amount [15] $ 26,000 [3],[14] $ 19,000 [5],[11]    
Cost [15] 26,000 [3],[14] 18,000 [1],[5],[11]    
Fair Value [15] $ 26,000 [3],[14] $ 18,000 [5],[11]    
Percentage of Net Assets [5],[11]   0.00%    
Investment, Identifier [Axis]: Omni Intermediate Holdings, LLC        
Variable interest rate [3] 9.00% [14] 9.00% [4],[5]   9.00% [14]
Interest Rate [3] 14.40% [14],[27] 13.69% [4],[5]   14.40% [14],[27]
Par Amount [3]   $ 4,500,000 [4],[5]   € 4,500 [14]
Cost [3]   4,374,000 [4],[5]   4,388 [14],[20]
Fair Value [3]   $ 4,319,000 [4],[5]   € 4,500 [14]
Percentage of Net Assets [3] 0.30% [14] 0.31% [4],[5]   0.30% [14]
Investment, Identifier [Axis]: Omni Intermediate Holdings, LLC 1        
Variable interest rate 5.00% [3],[4] 5.00% [3],[4] 5.00% [6] 5.00% [3],[4]
Interest Rate 10.42% [3],[4],[7] 9.73% [3],[4],[7] 6.00% [6],[22] 10.42% [3],[4],[7]
Par Amount $ 12,445,000 [3],[4] $ 12,131,000 [3],[4] $ 10,621,000 [6]  
Cost 12,353,000 [3],[4],[20] 12,027,000 [3],[4],[20] 10,516,000 [1],[6]  
Fair Value $ 12,445,000 [3],[4] $ 11,617,000 [3],[4] $ 10,516,000 [6]  
Percentage of Net Assets 0.84% [3],[4] 0.83% [3],[4] 0.88% [6] 0.84% [3],[4]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 138,000 $ 732,000 $ 1,264,000  
Fair Value   $ (31,000) $ (6,000)  
Investment, Identifier [Axis]: Omni Intermediate Holdings, LLC 2        
Variable interest rate 5.00% [2],[3],[4] 5.00% [3],[4],[12] 5.00% [6],[10] 5.00% [2],[3],[4]
Interest Rate 10.42% [2],[3],[4],[7] 9.73% [3],[4],[7],[12] 6.00% [6],[10],[22] 10.42% [2],[3],[4],[7]
Par Amount $ 1,265,000 [2],[3],[4] $ 531,000 [3],[4],[12] $ 1,195,000 [6],[10]  
Cost 1,248,000 [2],[3],[4],[20] 519,000 [3],[4],[12],[20] 1,176,000 [1],[6],[10]  
Fair Value $ 1,265,000 [2],[3],[4] $ 471,000 [3],[4],[12] $ 1,176,000 [6],[10]  
Percentage of Net Assets 0.09% [2],[3],[4] 0.03% [3],[4],[12] 0.10% [6],[10] 0.09% [2],[3],[4]
Unused Fee Rate 0.50% 1.00% 0.50%  
Unfunded Commitment $ 799,000 $ 173,000 $ 799,000  
Fair Value   $ (7,000) $ (8,000)  
Investment, Identifier [Axis]: Omni Intermediate Holdings, LLC 3        
Variable interest rate 4.00% [2],[4],[14] 5.00% [3],[4] 5.00% [6],[10] 4.00% [2],[4],[14]
Interest Rate 9.42% [2],[4],[7],[14] 9.73% [3],[4],[7] 6.00% [6],[10],[22] 9.42% [2],[4],[7],[14]
Par Amount $ 266,000 [2],[4],[14] $ 385,000 [3],[4] $ 266,000 [6],[10]  
Cost 259,000 [2],[4],[14],[20] 378,000 [3],[4],[20] 256,000 [1],[6],[10]  
Fair Value $ 266,000 [2],[4],[14] $ 368,000 [3],[4] $ 256,000 [6],[10]  
Percentage of Net Assets 0.02% [2],[4],[14] 0.03% [3],[4] 0.02% [6],[10] 0.02% [2],[4],[14]
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 1,065,000    
Fair Value   $ (45,000)    
Investment, Identifier [Axis]: Omni Intermediate Holdings, LLC 4        
Variable interest rate [3],[4],[12]   5.00%    
Interest Rate [3],[4],[7],[12]   9.73%    
Cost [3],[4],[12],[20]   $ (9,000)    
Fair Value [3],[4],[12]   $ (45,000)    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: PAI Holdco, Inc.        
Variable interest rate 7.50% [3],[14] 7.50% [3],[4],[5] 5.50% [6] 7.50% [3],[14]
Interest rate, PIK 2.00% [3],[14] 2.00% [3],[4],[5] 2.00% [6] 2.00% [3],[14]
Interest Rate 13.02% [3],[14],[27] 11.92% [3],[4],[5] 8.50% [6],[8] 13.02% [3],[14],[27]
Par Amount   $ 26,033,000 [3],[4],[5] $ 25,509,000 [6] € 26,430 [3],[14]
Cost   25,444,000 [3],[4],[5] 24,843,000 [1],[6] 25,898 [3],[14],[20]
Fair Value   $ 23,787,000 [3],[4],[5] $ 25,509,000 [6] € 25,074 [3],[14]
Percentage of Net Assets 1.69% [3],[14] 1.70% [3],[4],[5] 2.15% [6] 1.69% [3],[14]
Investment, Identifier [Axis]: PCX Holding Corp.        
Par Amount $ 6,538,000 [14],[23] $ 6,538,000 [4],[24]    
Par Amount, Shares (in shares) | shares   6,538 [5],[25] 6,538,000  
Cost 654,000 [14],[20],[23] $ 654,000 [1],[4],[5],[24],[25] $ 654,000  
Fair Value $ 779,000 [14],[23] $ 747,000 [4],[5],[24],[25] $ 965,000  
Percentage of Net Assets 0.05% [14],[23] 0.05% [4],[5],[24],[25] 0.08% 0.05% [14],[23]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 987,000 $ 1,296,000    
Fair Value $ (9,000) $ (42,000)    
Investment, Identifier [Axis]: PCX Holding Corp. 1        
Variable interest rate 6.25% [3],[4],[13] 6.25% [3],[4],[17] 6.25% [6],[21] 6.25% [3],[4],[13]
Interest Rate 11.79% [3],[4],[7],[13] 10.98% [3],[4],[7],[17] 7.25% [6],[21],[22] 11.79% [3],[4],[7],[13]
Par Amount $ 18,093,000 [3],[4],[13] $ 18,232,000 [3],[4],[17] $ 18,417,000 [6],[21]  
Cost 17,975,000 [3],[4],[13],[20] 18,093,000 [3],[4],[17],[20] 18,250,000 [1],[6],[21]  
Fair Value $ 17,930,000 [3],[4],[13] $ 17,636,000 [3],[4],[17] $ 18,417,000 [6],[21]  
Percentage of Net Assets 1.21% [3],[4],[13] 1.26% [3],[4],[17] 1.55% [6],[21] 1.21% [3],[4],[13]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 1,851,000  
Investment, Identifier [Axis]: PCX Holding Corp. 2        
Variable interest rate 6.25% [3],[4] 6.25% [3],[4] 6.25% [6],[10] 6.25% [3],[4]
Interest Rate 11.79% [3],[4],[7] 10.98% [3],[4],[7] 7.25% [6],[10],[22] 11.79% [3],[4],[7]
Par Amount $ 18,218,000 [3],[4] $ 18,356,000 [3],[4] $ 7,386,000 [6],[10]  
Cost 17,968,000 [3],[4],[20] 18,064,000 [3],[4],[20] 7,309,000 [1],[6],[10]  
Fair Value $ 18,053,000 [3],[4] $ 17,756,000 [3],[4] $ 7,386,000 [6],[10]  
Percentage of Net Assets 1.22% [3],[4] 1.27% [3],[4] 0.62% [6],[10] 1.22% [3],[4]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,851,000  
Investment, Identifier [Axis]: PCX Holding Corp. 3        
Variable interest rate 6.25% [2],[3],[4] 6.25% [3],[4],[12] 6.25% [6],[10] 6.25% [2],[3],[4]
Interest Rate 11.79% [2],[3],[4],[7] 10.98% [3],[4],[7],[12] 7.25% [6],[10],[22] 11.79% [2],[3],[4],[7]
Par Amount [3],[4] $ 864,000 [2] $ 555,000 [12]    
Cost 853,000 [2],[3],[4],[20] 542,000 [3],[4],[12],[20] $ (16,000) [1],[6],[10]  
Fair Value [3],[4] $ 847,000 [2] $ 495,000 [12]    
Percentage of Net Assets 0.06% [2],[3],[4] 0.04% [3],[4],[12] 0.00% [6],[10] 0.06% [2],[3],[4]
Investment, Identifier [Axis]: PDFTron Systems, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 3,850,000 $ 3,850,000    
Fair Value $ (73,000) $ (128,000)    
Investment, Identifier [Axis]: PDFTron Systems, Inc. 1        
Variable interest rate [3] 5.50% [13],[14],[28] 5.50% [4],[5],[16],[17],[30]   5.50% [13],[14],[28]
Interest Rate [3] 10.83% [13],[14],[28] 9.82% [4],[5],[7],[16],[17],[30]   10.83% [13],[14],[28]
Par Amount [3] $ 30,107,000 [13],[14],[28] $ 30,415,000 [4],[5],[16],[17],[30]    
Cost [3] 29,750,000 [13],[14],[28] 29,998,000 [4],[5],[9],[16],[17],[30]    
Fair Value [3] $ 29,535,000 [13],[14],[28] $ 29,402,000 [4],[5],[16],[17],[30]    
Percentage of Net Assets [3] 1.99% [13],[14],[28] 2.10% [4],[5],[16],[17],[30]   1.99% [13],[14],[28]
Investment, Identifier [Axis]: PDFTron Systems, Inc. 2        
Variable interest rate [3] 5.50% [14],[28] 5.50% [4],[5],[29],[30]   5.50% [14],[28]
Interest Rate [3] 10.83% [14],[28] 9.82% [4],[5],[7],[22],[29],[30]   10.83% [14],[28]
Par Amount [3] $ 9,751,000 [14],[28] $ 9,800,000 [4],[5],[29],[30]    
Cost [3] 9,612,000 [14],[28] 9,638,000 [1],[4],[5],[9],[29],[30]    
Fair Value [3] $ 9,566,000 [14],[28] $ 9,474,000 [4],[5],[29],[30]    
Percentage of Net Assets [3] 0.65% [14],[28] 0.68% [4],[5],[29],[30]   0.65% [14],[28]
Investment, Identifier [Axis]: PDFTron Systems, Inc. 3        
Variable interest rate [3] 5.50% [14],[15],[28] 5.50% [4],[5],[11],[12],[29],[30]   5.50% [14],[15],[28]
Interest Rate [3] 10.83% [14],[15],[28] 9.82% [4],[5],[7],[11],[12],[22],[29],[30]   10.83% [14],[15],[28]
Par Amount [3] $ 3,850,000 [14],[15],[28] $ 3,850,000 [4],[5],[11],[12],[29],[30]    
Cost [3] 3,764,000 [14],[15],[28] 3,741,000 [1],[4],[5],[9],[11],[12],[29],[30]    
Fair Value [3] $ 3,704,000 [14],[15],[28] $ 3,594,000 [4],[5],[11],[12],[29],[30]    
Percentage of Net Assets [3] 0.25% [14],[15],[28] 0.26% [4],[5],[11],[12],[29],[30]   0.25% [14],[15],[28]
Investment, Identifier [Axis]: PDFTron US Acquisition Corp. 1        
Variable interest rate [6],[10],[21]     5.50%  
Interest Rate [6],[8],[10],[21]     6.50%  
Par Amount [6],[10],[21]     $ 30,723,000  
Cost [1],[6],[10],[21]     30,226,000  
Fair Value [6],[10],[21]     $ 29,894,000  
Percentage of Net Assets [6],[10],[21]     2.52%  
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 3,640,000  
Fair Value     $ (98,000)  
Investment, Identifier [Axis]: PDFTron US Acquisition Corp. 2        
Variable interest rate [6],[10],[31]     5.50%  
Interest Rate [6],[8],[10],[31]     6.50%  
Par Amount [6],[10],[31]     $ 6,160,000  
Cost [1],[6],[10],[31]     6,044,000  
Fair Value [6],[10],[31]     $ 5,896,000  
Percentage of Net Assets [6],[10],[31]     0.50%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 7,700,000  
Fair Value     $ (208,000)  
Investment, Identifier [Axis]: PDFTron US Acquisition Corp. 3        
Variable interest rate [6],[10],[31]     5.50%  
Interest Rate [6],[8],[10],[31]     6.50%  
Cost [1],[6],[10],[31]     $ (140,000)  
Fair Value [6],[10],[31]     $ (208,000)  
Percentage of Net Assets [6],[10],[31]     (0.02%)  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC        
Variable interest rate [14],[15],[18] 5.75%     5.75%
Interest Rate [14],[15],[18] 11.15%     11.15%
Cost [14],[15],[18] $ (75,000)      
Fair Value [14],[15],[18] $ (75,000)      
Percentage of Net Assets [14],[15],[18] (0.01%)     (0.01%)
Unused Fee Rate 1.00%      
Unfunded Commitment $ 15,090,000      
Fair Value $ (75,000)      
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC Two        
Variable interest rate [14],[18] 5.75%     5.75%
Interest Rate [14],[18] 11.15%     11.15%
Par Amount [14],[18] $ 4,357,000      
Cost [14],[18] 4,193,000      
Fair Value [14],[18] $ 4,292,000      
Percentage of Net Assets [14],[18] 0.29%     0.29%
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC 1        
Variable interest rate 5.98% [14],[18] 5.50% [4],[5],[18],[19] 5.50% [6],[19] 5.98% [14],[18]
Interest Rate 11.52% [14],[18] 10.23% [4],[5],[7],[18],[19] 6.25% [6],[8],[19] 11.52% [14],[18]
Par Amount $ 28,415,000 [14],[18] $ 28,632,000 [4],[5],[18],[19] $ 17,400,000 [6],[19]  
Cost 28,191,000 [14],[18] 28,383,000 [4],[5],[9],[18],[19] 17,228,000 [1],[6],[19]  
Fair Value $ 27,116,000 [14],[18] $ 27,804,000 [4],[5],[18],[19] $ 17,228,000 [6],[19]  
Percentage of Net Assets 1.83% [14],[18] 1.99% [4],[5],[18],[19] 1.45% [6],[19] 1.83% [14],[18]
Unfunded Commitment     $ 16,090,000  
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC 2        
Variable interest rate 5.98% [14],[18] 5.50% [4],[5],[18],[19] 5.50% [6],[10],[19] 5.98% [14],[18]
Interest Rate 11.52% [14],[18] 10.23% [4],[5],[7],[18],[19] 6.25% [6],[8],[10],[19] 11.52% [14],[18]
Par Amount $ 15,808,000 [14],[18] $ 15,929,000 [4],[5],[18],[19] $ 11,521,000 [6],[10],[19]  
Cost 15,682,000 [14],[18] 15,787,000 [4],[5],[9],[18],[19] 11,408,000 [1],[6],[10],[19]  
Fair Value $ 15,086,000 [14],[18] $ 15,469,000 [4],[5],[18],[19] $ 11,408,000 [6],[10],[19]  
Percentage of Net Assets 1.02% [14],[18] 1.11% [4],[5],[18],[19] 0.96% [6],[10],[19] 1.02% [14],[18]
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc.        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 792,000      
Fair Value $ (9,000)      
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc. 1        
Variable interest rate [14],[15] 6.50%     6.50%
Interest Rate [14],[15] 11.97%     11.97%
Par Amount [14],[15] $ 6,763,000      
Cost [14],[15] 6,632,000      
Fair Value [14],[15] $ 6,685,000      
Percentage of Net Assets [14],[15] 0.45%     0.45%
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc. 2        
Variable interest rate [14],[15] 6.50%     6.50%
Interest Rate [14],[15] 11.97%     11.97%
Cost [14],[15] $ (15,000)      
Fair Value [14],[15] $ (9,000)      
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 4,485,000 $ 4,485,000    
Fair Value $ (61,000) $ (207,000)    
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC 1        
Variable interest rate 5.75% [13],[14],[18] 5.50% [5],[16],[19] 5.50% 5.75% [13],[14],[18]
Interest Rate 11.27% [13],[14],[18] 8.86% [5],[16],[19],[22] 6.25% 11.27% [13],[14],[18]
Par Amount $ 62,516,000 [13],[14],[18] $ 61,902,000 [5],[16],[19] $ 45,812,000  
Cost 61,538,000 [13],[14],[18] 60,837,000 [1],[5],[16],[19] 44,918,000  
Fair Value $ 61,666,000 [13],[14],[18] $ 59,042,000 [5],[16],[19] $ 44,918,000  
Percentage of Net Assets 4.16% [13],[14],[18] 4.23% [5],[16],[19] 3.78% 4.16% [13],[14],[18]
Unused Fee Rate     0.75%  
Unfunded Commitment     $ 17,620,000  
Fair Value     $ (171,000)  
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC 2        
Variable interest rate 5.75% [14],[15],[18] 5.50% [5],[19] 5.75% 5.75% [14],[15],[18]
Interest Rate 11.27% [14],[15],[18] 8.86% [5],[19],[22] 6.75% 11.27% [14],[15],[18]
Par Amount [5],[19]   $ 1,089,000    
Cost $ (65,000) [14],[15],[18] 1,060,000 [1],[5],[19] $ (171,000)  
Fair Value $ (61,000) [14],[15],[18] $ 1,039,000 [5],[19] $ (171,000)  
Percentage of Net Assets   0.07% [5],[19] (0.01%)  
Unused Fee Rate     0.75%  
Unfunded Commitment     $ 4,485,000  
Fair Value     $ (86,000)  
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC 3        
Variable interest rate   5.50% [5],[11],[15],[19] 5.50%  
Interest Rate   8.86% [5],[11],[15],[19],[22] 6.25%  
Cost   $ (74,000) [1],[5],[11],[15],[19] $ (86,000)  
Fair Value   $ (207,000) [5],[11],[15],[19] $ (86,000)  
Percentage of Net Assets   (0.01%) [5],[11],[15],[19] (0.01%)  
Investment, Identifier [Axis]: Performance Health & Wellness        
Variable interest rate 6.00% [3],[13],[14] 6.00% [3],[4],[17] 6.00% [6],[21] 6.00% [3],[13],[14]
Interest Rate 11.57% [3],[13],[14] 10.73% [3],[4],[7],[17] 7.00% [6],[8],[21] 11.57% [3],[13],[14]
Par Amount $ 9,398,000 [3],[13],[14] $ 9,398,000 [3],[4],[17] $ 10,474,000 [6],[21]  
Cost 9,268,000 [3],[13],[14] 9,248,000 [3],[4],[9],[17] 10,278,000 [1],[6],[21]  
Fair Value $ 9,248,000 [3],[13],[14] $ 8,956,000 [3],[4],[17] $ 10,474,000 [6],[21]  
Percentage of Net Assets 0.62% [3],[13],[14] 0.64% [3],[4],[17] 0.88% [6],[21] 0.62% [3],[13],[14]
Investment, Identifier [Axis]: PerkinElmer U.S., LLC        
Variable interest rate [3],[13],[14] 6.75%     6.75%
Interest Rate [3],[13],[14] 12.16%     12.16%
Par Amount [3],[13],[14] $ 3,893,000      
Cost [3],[13],[14] 3,784,000      
Fair Value [3],[13],[14] $ 3,842,000      
Percentage of Net Assets [3],[13],[14] 0.26%     0.26%
Investment, Identifier [Axis]: Pet Holdings, Inc. (Brightpet)        
Par Amount $ 17,543,000 [14],[23] $ 13,846,000 [4],[24]    
Par Amount, Shares (in shares) | shares   13,846 [5],[25] 12,313,000  
Cost 2,013,000 [14],[20],[23] $ 1,385,000 [1],[4],[5],[24],[25] $ 1,232,000  
Fair Value $ 1,718,000 [14],[23] $ 1,028,000 [4],[5],[24],[25] $ 1,052,000  
Percentage of Net Assets 0.12% [14],[23] 0.07% [4],[5],[24],[25] 0.09% 0.12% [14],[23]
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC 1        
Variable interest rate 6.00% [13],[14],[18] 6.00% [5],[19] 6.00% 6.00% [13],[14],[18]
Interest Rate 11.43% [13],[14],[18] 11.12% [5],[19],[22] 6.75% 11.43% [13],[14],[18]
Par Amount $ 20,256,000 [13],[14],[18] $ 910,000 [5],[19] $ 17,972,000  
Cost 20,072,000 [13],[14],[18] 897,000 [1],[5],[19] 17,796,000  
Fair Value $ 19,896,000 [13],[14],[18] $ 866,000 [5],[19] $ 17,796,000  
Percentage of Net Assets 1.34% [13],[14],[18] 0.06% [5],[19] 1.50% 1.34% [13],[14],[18]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 1,695,000 $ 292,000 $ 1,559,000  
Fair Value $ (16,000) $ (14,000) $ (13,000)  
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC 2        
Variable interest rate 6.00% [14],[15],[18] 6.00% [5],[11],[15],[19] 6.00% 6.00% [14],[15],[18]
Interest Rate 11.43% [14],[15],[18] 11.12% [5],[11],[15],[19] 6.75% 11.43% [14],[15],[18]
Par Amount $ 7,164,000 [14],[15],[18] $ 1,985,000 [5],[11],[15],[19] $ 3,433,000  
Cost 7,080,000 [14],[15],[18] 1,955,000 [5],[11],[15],[19] 3,392,000  
Fair Value $ 7,022,000 [14],[15],[18] $ 1,874,000 [5],[11],[15],[19] $ 3,392,000  
Percentage of Net Assets 0.47% [14],[15],[18] 0.13% [5],[11],[15],[19] 0.29% 0.47% [14],[15],[18]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 832,000 $ 832,000 $ 832,000  
Fair Value $ (15,000) $ (40,000) $ (8,000)  
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC 3        
Variable interest rate 6.00% [14],[15],[18] 6.00% [5],[19] 6.00% 6.00% [14],[15],[18]
Interest Rate 11.43% [14],[15],[18] 11.21% [5],[19] 6.75% 11.43% [14],[15],[18]
Par Amount [5],[19]   $ 17,793,000    
Cost $ (6,000) [14],[15],[18] 17,638,000 [5],[19] $ (8,000)  
Fair Value $ (15,000) [14],[15],[18] $ 16,930,000 [5],[19] $ (8,000)  
Percentage of Net Assets   1.21% [5],[19] 0.00%  
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC 4        
Variable interest rate [5],[11],[15],[19]   6.00%    
Interest Rate [5],[11],[15],[19]   11.21%    
Par Amount [5],[11],[15],[19]   $ 4,942,000    
Cost [5],[11],[15],[19]   4,899,000    
Fair Value [5],[11],[15],[19]   $ 4,703,000    
Percentage of Net Assets [5],[11],[15],[19]   0.34%    
Investment, Identifier [Axis]: Peter C. Foy & Associates Insurance Services, LLC 5        
Variable interest rate [5],[11],[15],[19]   6.00%    
Interest Rate [5],[11],[15],[19]   11.21%    
Cost [5],[11],[15],[19]   $ (7,000)    
Fair Value [5],[11],[15],[19]   $ (40,000)    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Pound Bidco, Inc 1        
Variable interest rate [3],[13],[28] 6.50% [14] 6.50% [4],[5],[16],[18],[29]   6.50% [14]
Interest Rate [3],[13],[28] 11.93% [14],[27] 10.67% [4],[5],[16],[18],[29]   11.93% [14],[27]
Par Amount [3],[13],[28]   $ 9,012,000 [4],[5],[16],[18],[29]   € 6,395 [14]
Cost [3],[13],[28]   8,888,000 [4],[5],[16],[18],[29]   6,329 [14],[20]
Fair Value [3],[13],[28]   $ 8,970,000 [4],[5],[16],[18],[29]   € 6,395 [14]
Percentage of Net Assets [3],[13],[28] 0.43% [14] 0.64% [4],[5],[16],[18],[29]   0.43% [14]
Investment, Identifier [Axis]: Pound Bidco, Inc 2        
Variable interest rate [3],[13],[28] 6.50% [14],[15] 6.50% [2],[4],[5],[11],[16],[29]   6.50% [14],[15]
Interest Rate [3],[13],[28] 11.93% [14],[15],[27] 10.67% [2],[4],[5],[11],[16],[29]   11.93% [14],[15],[27]
Cost [3],[13],[28]   $ (14,000) [2],[4],[5],[11],[16],[29]   € (11) [14],[15],[20]
Fair Value [2],[3],[4],[5],[11],[13],[16],[28],[29]   $ (5,000)    
Percentage of Net Assets [5],[11],[16],[29]   0.00%    
Investment, Identifier [Axis]: Pound Bidco, Inc 3        
Variable interest rate [3],[14],[28] 6.50%     6.50%
Interest Rate [3],[14],[27],[28] 11.93%     11.93%
Par Amount | € [3],[14],[28]       € 2,617
Cost | € [3],[14],[20],[28]       2,585
Fair Value | € [3],[14],[28]       € 2,617
Percentage of Net Assets [3],[14],[28] 0.18%     0.18%
Investment, Identifier [Axis]: Pound Bidco, Inc 4        
Variable interest rate [3],[14],[15],[28] 6.50%     6.50%
Interest Rate [3],[14],[15],[27],[28] 11.93%     11.93%
Investment, Identifier [Axis]: Pound Bidco, Inc.        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,163,000 $ 1,163,000 $ 1,163,000  
Fair Value   $ (5,000) $ (19,000)  
Investment, Identifier [Axis]: Pound Bidco, Inc. 1        
Variable interest rate [6],[21],[31]     6.50%  
Interest Rate [6],[8],[21],[31]     7.50%  
Par Amount [6],[21],[31]     $ 9,012,000  
Cost [1],[6],[21],[31]     8,854,000  
Fair Value [6],[21],[31]     $ 8,854,000  
Percentage of Net Assets [6],[21],[31]     0.74%  
Investment, Identifier [Axis]: Pound Bidco, Inc. 2        
Variable interest rate [6],[10],[21],[31]     6.50%  
Interest Rate [6],[8],[10],[21],[31]     7.50%  
Cost [1],[6],[10],[21],[31]     $ (19,000)  
Fair Value [6],[10],[21],[31]     $ (19,000)  
Percentage of Net Assets [6],[10],[21],[31]     0.00%  
Investment, Identifier [Axis]: Pritchard Industries, Inc.        
Par Amount, Shares (in shares) | shares   1,700,000 [5],[25] 1,700,000,000  
Cost   $ 1,700,000 [1],[5],[25] $ 1,700,000  
Fair Value   $ 2,210,000 [5],[25] $ 1,700,000  
Percentage of Net Assets   0.16% [5],[25] 0.14%  
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 691,000 $ 6,140,000  
Fair Value   (38,000) $ (59,000)  
Investment, Identifier [Axis]: Pritchard Industries, LLC        
Par Amount 1,700,000,000 [14],[23] 1,700,000,000 [4],[24]    
Cost 1,700,000 [14],[20],[23] 1,700,000 [4],[24]    
Fair Value $ 1,734,000 [14],[23] $ 2,210,000 [4],[24]    
Percentage of Net Assets 0.12% [14],[23] 0.16% [4],[24]   0.12% [14],[23]
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 691,000    
Fair Value   $ (38,000)    
Investment, Identifier [Axis]: Pritchard Industries, LLC 1        
Variable interest rate 5.50% [14],[18] 5.50% [5],[14],[18],[19] 5.50% [6],[19] 5.50% [14],[18]
Interest Rate 11.09% [14],[18],[27] 10.54% [5],[14],[18],[19] 6.25% [6],[8],[19] 11.09% [14],[18],[27]
Par Amount $ 25,338,000 [14],[18] $ 25,532,000 [5],[14],[18],[19] $ 25,789,000 [6],[19]  
Cost 24,971,000 [14],[18],[20] 25,108,000 [5],[14],[18],[19] 25,289,000 [1],[6],[19]  
Fair Value $ 24,809,000 [14],[18] $ 24,112,000 [5],[14],[18],[19] $ 25,289,000 [6],[19]  
Percentage of Net Assets 1.67% [14],[18] 1.73% [5],[14],[18],[19] 2.13% [6],[19] 1.67% [14],[18]
Investment, Identifier [Axis]: Pritchard Industries, LLC 2        
Variable interest rate 5.50% [14],[18] 5.50% [4],[5],[10],[11],[12],[18],[19] 5.50% [6],[10],[19] 5.50% [14],[18]
Interest Rate 11.09% [14],[18],[27] 10.54% [4],[5],[10],[11],[12],[18],[19] 6.25% [6],[8],[10],[19] 11.09% [14],[18],[27]
Par Amount [18] $ 6,058,000 [14] $ 5,413,000 [4],[5],[10],[11],[12],[19]    
Cost 5,966,000 [14],[18],[20] 5,315,000 [4],[5],[10],[11],[12],[18],[19],[20] $ (59,000) [1],[6],[10],[19]  
Fair Value $ 5,931,000 [14],[18] $ 5,074,000 [4],[5],[10],[11],[12],[18],[19] $ (59,000) [6],[10],[19]  
Percentage of Net Assets 0.40% [14],[18] 0.36% [4],[5],[10],[11],[12],[18],[19] 0.00% [6],[10],[19] 0.40% [14],[18]
Investment, Identifier [Axis]: Procure Acquiom Financial, LLC (Procure Analytics)        
Par Amount $ 1,000,000,000 [14],[23] $ 1,000,000,000 [4],[24]    
Par Amount, Shares (in shares) | shares   1,000,000 [5],[25] 1,000,000,000  
Cost 1,000,000 [14],[20],[23] $ 1,000,000 [1],[4],[5],[24],[25] $ 1,000,000  
Fair Value $ 1,240,000 [14],[23] $ 1,380,000 [4],[5],[24],[25] $ 1,000,000  
Percentage of Net Assets 0.08% [14],[23] 0.10% [4],[5],[24],[25] 0.08% 0.08% [14],[23]
Investment, Identifier [Axis]: Procure Acquireco, Inc. (Procure Analytics) 1        
Variable interest rate 5.00% [14],[18] 5.00% [4],[5],[18],[19] 5.50% [6],[19] 5.00% [14],[18]
Interest Rate 10.57% [14],[18] 9.35% [4],[5],[7],[18],[19],[22] 6.25% [6],[8],[19] 10.57% [14],[18]
Par Amount $ 3,899,000 [14],[18] $ 3,929,000 [4],[5],[18],[19] $ 3,968,000 [6],[19]  
Cost 3,837,000 [14],[18] 3,859,000 [1],[4],[5],[18],[19],[20] 3,889,000 [1],[6],[19]  
Fair Value $ 3,769,000 [14],[18] $ 3,755,000 [4],[5],[18],[19] $ 3,889,000 [6],[19]  
Percentage of Net Assets 0.25% [14],[18] 0.27% [4],[5],[18],[19] 0.33% [6],[19] 0.25% [14],[18]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 794,000 $ 794,000 $ 794,000  
Fair Value $ (26,000) $ (35,000) $ (8,000)  
Investment, Identifier [Axis]: Procure Acquireco, Inc. (Procure Analytics) 2        
Variable interest rate 5.00% [14],[15],[18] 5.00% [4],[5],[12],[18],[19] 5.50% [6],[10],[19] 5.00% [14],[15],[18]
Interest Rate 10.57% [14],[15],[18] 9.35% [4],[5],[7],[12],[18],[19],[22] 6.25% [6],[8],[10],[19] 10.57% [14],[15],[18]
Cost $ (6,000) [14],[15],[18] $ (7,000) [1],[4],[5],[12],[18],[19],[20] $ (8,000) [1],[6],[10],[19]  
Fair Value $ (26,000) [14],[15],[18] $ (35,000) [4],[5],[12],[18],[19] $ (8,000) [6],[10],[19]  
Percentage of Net Assets [19]   0.00% [5] 0.00% [6],[10]  
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 238,000 $ 238,000 $ 238,000  
Fair Value $ (8,000) $ (11,000) $ (5,000)  
Investment, Identifier [Axis]: Procure Acquireco, Inc. (Procure Analytics) 3        
Variable interest rate 5.00% [14],[15],[18] 5.00% [4],[5],[12],[18],[19] 5.50% [6],[10],[19] 5.00% [14],[15],[18]
Interest Rate 10.57% [14],[15],[18] 9.35% [4],[5],[7],[12],[18],[19],[22] 6.25% [6],[8],[10],[19] 10.57% [14],[15],[18]
Cost $ (3,000) [14],[15],[18] $ (4,000) [1],[4],[5],[12],[18],[19],[20] $ (5,000) [1],[6],[10],[19]  
Fair Value $ (8,000) [14],[15],[18] $ (11,000) [4],[5],[12],[18],[19] $ (5,000) [6],[10],[19]  
Percentage of Net Assets [19]   0.00% [5] 0.00% [6],[10]  
Investment, Identifier [Axis]: Project Boost Purchase, LLC 1        
Variable interest rate [14],[18] 5.25% 5.25% [5],[19]   5.25%
Interest Rate [14],[18] 10.67% 9.65% [5],[19],[22]   10.67%
Par Amount [14],[18] $ 5,682,000 $ 5,414,000    
Par Amount, Shares (in shares) | shares [5],[19]   5,414    
Cost [14],[18] 5,636,000 $ 5,364,000 [1],[5],[19]    
Fair Value [14],[18] $ 5,664,000 $ 5,362,000 [5],[19]    
Percentage of Net Assets [14],[18] 0.38% 0.38% [5],[19]   0.38%
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 589,000 $ 1,038,000    
Fair Value $ (2,000) $ (10,000)    
Investment, Identifier [Axis]: Project Boost Purchase, LLC 2        
Variable interest rate [14],[15],[18] 5.25% 5.25% [5],[11],[19]   5.25%
Interest Rate [14],[15],[18] 10.67% 9.65% [5],[11],[19],[22]   10.67%
Par Amount [14],[15],[18]   $ 85,000    
Par Amount, Shares (in shares) | shares [5],[11],[19]   85    
Cost [14],[15],[18] $ (4,000) $ 79,000 [1],[5],[11],[19]    
Fair Value [14],[15],[18] $ (2,000) $ 74,000 [5],[11],[19]    
Percentage of Net Assets [5],[11],[14],[15],[18],[19]   0.01%    
Unused Fee Rate 0.38% 0.50%    
Unfunded Commitment $ 449,000 $ 449,000    
Fair Value $ (1,000) $ (4,000)    
Investment, Identifier [Axis]: Project Boost Purchase, LLC 3        
Variable interest rate [14],[15],[18] 5.25% 5.25% [5],[11],[19]   5.25%
Interest Rate [14],[15],[18] 10.67% 9.65% [5],[11],[19],[22]   10.67%
Par Amount, Shares (in shares) | shares [5],[11],[19]   0    
Cost [14],[15],[18] $ (3,000) $ (4,000) [1],[5],[11],[19]    
Fair Value [14],[15],[18] $ (1,000) $ (4,000) [5],[11],[19]    
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: Project Leopard Holdings Inc        
Variable interest rate [26],[28] 5.25% 5.25%   5.25%
Interest Rate [26],[28] 10.72% [27] 9.80%   10.72% [27]
Par Amount [26],[28]   $ 6,280,000   € 6,233
Cost [26],[28]   5,862,000   5,852 [20]
Fair Value [26],[28]   $ 5,696,000   € 5,485
Percentage of Net Assets [26],[28] 0.37% 0.41%   0.37%
Investment, Identifier [Axis]: Project Leopard Holdings, Inc.        
Variable interest rate [29],[36]   5.25%    
Interest Rate [29],[36]   9.80%    
Par Amount [29],[36]   $ 6,280,000    
Cost [29],[36]   5,862,000    
Fair Value [29],[36]   $ 5,696,000    
Percentage of Net Assets [29],[36]   0.41%    
Investment, Identifier [Axis]: Prompt Care Infusion Buyer Inc 1        
Variable interest rate 6.00% [3],[14] 6.00%   6.00% [3],[14]
Interest Rate 11.43% [3],[14] 10.22%   11.43% [3],[14]
Par Amount $ 9,004,000 [3],[14] $ 9,073,000    
Cost 8,876,000 [3],[14] 8,925,000    
Fair Value $ 8,862,000 [3],[14] $ 8,757,000    
Percentage of Net Assets 0.60% [3],[14] 0.63%   0.60% [3],[14]
Unused Fee Rate 1.00%      
Unfunded Commitment $ 972,000      
Fair Value $ (15,000)      
Investment, Identifier [Axis]: Prompt Care Infusion Buyer Inc 2        
Variable interest rate [15] 6.00% [3],[14] 6.00%   6.00% [3],[14]
Interest Rate [15] 11.43% [3],[14] 10.22%   11.43% [3],[14]
Par Amount [15] $ 1,402,000 [3],[14] $ 881,000    
Cost [15] 1,379,000 [3],[14] 849,000    
Fair Value [15] $ 1,365,000 [3],[14] $ 766,000    
Percentage of Net Assets [15] 0.09% [3],[14] 0.05%   0.09% [3],[14]
Investment, Identifier [Axis]: Promptcare Infusion Buyer, Inc. 1        
Variable interest rate   6.00% 6.00% [6]  
Interest Rate   10.22% 7.00% [6],[8]  
Par Amount   $ 9,073,000 $ 9,165,000 [6]  
Cost   8,925,000 8,990,000 [1],[6]  
Fair Value   $ 8,757,000 $ 8,948,000 [6]  
Percentage of Net Assets   0.63% 0.75% [6]  
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 2,431,000 $ 3,050,000  
Fair Value   $ (85,000) $ (72,000)  
Investment, Identifier [Axis]: Promptcare Infusion Buyer, Inc. 2        
Variable interest rate   6.00% 6.00% [6],[10]  
Interest Rate   10.22% 7.00% [6],[8],[10]  
Par Amount   $ 881,000 $ 837,000 [6],[10]  
Cost   849,000 792,000 [1],[6],[10]  
Fair Value   $ 766,000 $ 745,000 [6],[10]  
Percentage of Net Assets   0.05% 0.06% [6],[10]  
Investment, Identifier [Axis]: Prophix Software, Inc.        
Unfunded Commitment $ 297,000      
Investment, Identifier [Axis]: QBS Parent, Inc.        
Variable interest rate 8.50% [14] 8.50% [4],[5] 8.50% [6] 8.50% [14]
Interest Rate 13.92% [14],[27] 12.88% [4],[5] 8.72% [6],[8] 13.92% [14],[27]
Par Amount $ 15,000,000 [14] $ 15,000,000 [4],[5] $ 15,000,000 [6]  
Cost 14,841,000 [14],[20] 14,809,000 [4],[5] 14,769,000 [1],[6]  
Fair Value $ 14,343,000 [14] $ 13,569,000 [4],[5] $ 14,748,000 [6]  
Percentage of Net Assets 0.97% [14] 0.97% [4],[5] 1.24% [6] 0.97% [14]
Investment, Identifier [Axis]: QW Holding Corporation 1        
Variable interest rate [3],[4],[5],[16],[17]   5.50%    
Interest Rate [3],[4],[5],[7],[16],[17],[22]   9.44%    
Par Amount [3],[4],[5],[16],[17]   $ 8,907,000    
Cost [1],[3],[4],[5],[16],[17],[20]   8,791,000    
Fair Value [3],[4],[5],[16],[17]   $ 8,575,000    
Percentage of Net Assets [3],[4],[5],[16],[17]   0.61%    
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 394,000    
Fair Value   $ (15,000)    
Investment, Identifier [Axis]: QW Holding Corporation 2        
Variable interest rate [3],[4],[5],[12]   5.50%    
Interest Rate [3],[4],[5],[7],[12],[22]   9.44%    
Par Amount [3],[4],[5],[12]   $ 1,851,000    
Cost [1],[3],[4],[5],[12],[20]   1,824,000    
Fair Value [3],[4],[5],[12]   $ 1,767,000    
Percentage of Net Assets [3],[4],[5],[12]   0.13%    
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 2,250,000    
Fair Value   $ (84,000)    
Investment, Identifier [Axis]: QW Holding Corporation 3        
Variable interest rate [3],[4],[5],[12]   5.50%    
Interest Rate [3],[4],[5],[7],[12],[22]   9.44%    
Cost [1],[3],[4],[5],[12],[20]   $ (29,000)    
Fair Value [3],[4],[5],[12]   $ (84,000)    
Percentage of Net Assets [3],[4],[5],[12]   (0.01%)    
Investment, Identifier [Axis]: RSC Acquisition, Inc.        
Unused Fee Rate 1.00%      
Unfunded Commitment $ 745,000      
Fair Value $ (11,000)      
Investment, Identifier [Axis]: RSC Acquisition, Inc. 1        
Variable interest rate 5.50% [13],[14],[18] 5.50% [5],[16],[19] 5.50% 5.50% [13],[14],[18]
Interest Rate 11.04% [13],[14],[18] 9.97% [5],[16],[19] 6.25% 11.04% [13],[14],[18]
Par Amount $ 32,483,000 [13],[14],[18] $ 24,774,000 [5],[16],[19] $ 18,667,000  
Cost 32,137,000 [13],[14],[18] 24,417,000 [5],[16],[19] 18,287,000  
Fair Value $ 32,137,000 [13],[14],[18] $ 23,999,000 [5],[16],[19] $ 18,484,000  
Percentage of Net Assets 2.17% [13],[14],[18] 1.72% [5],[16],[19] 1.56% 2.17% [13],[14],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 8,474,000  
Fair Value     $ (82,000)  
Investment, Identifier [Axis]: RSC Acquisition, Inc. 2        
Variable interest rate 6.00% [14],[15],[18] 5.50% [5],[19] 5.50% 6.00% [14],[15],[18]
Interest Rate 11.54% [14],[15],[18] 9.97% [5],[19] 6.25% 11.54% [14],[15],[18]
Par Amount   $ 7,961,000 [5],[19] $ 5,911,000  
Cost $ (11,000) [14],[15],[18] 7,900,000 [5],[19] 5,772,000  
Fair Value $ (11,000) [14],[15],[18] $ 7,712,000 [5],[19] $ 5,772,000  
Percentage of Net Assets   0.55% [5],[19] 0.49%  
Investment, Identifier [Axis]: RSK Holdings, Inc. (Riskonnect)        
Variable interest rate 10.50% [14],[18],[23] 10.50% [5],[19],[25]   10.50% [14],[18],[23]
Interest Rate [4],[18],[24]   10.50%    
Par Amount [18] $ 1,012,200,000 [14],[23] $ 1,012,200,000 [4],[24]    
Par Amount, Shares (in shares) | shares [5],[19],[25]   1,012,200    
Cost [18] 1,137,000 [14],[20],[23] $ 1,019,000 [1],[4],[5],[19],[24],[25]    
Fair Value [18] $ 1,174,000 [14],[23] $ 1,053,000 [4],[5],[19],[24],[25]    
Percentage of Net Assets [18] 0.08% [14],[23] 0.08% [4],[5],[19],[24],[25]   0.08% [14],[23]
Investment, Identifier [Axis]: Radwell Parent, LLC        
Unused Fee Rate   0.38%    
Unfunded Commitment   $ 2,442,000    
Fair Value   $ (71,000)    
Investment, Identifier [Axis]: Radwell Parent, LLC 1        
Variable interest rate [4],[5],[16],[17],[18],[19]   6.75%    
Interest Rate [4],[5],[7],[16],[17],[18],[19]   11.33%    
Par Amount [4],[5],[16],[17],[18],[19]   $ 32,558,000    
Cost [4],[5],[9],[16],[17],[18],[19]   31,607,000    
Fair Value [4],[5],[16],[17],[18],[19]   $ 31,607,000    
Percentage of Net Assets [4],[5],[16],[17],[18],[19]   2.26%    
Investment, Identifier [Axis]: Radwell Parent, LLC 2        
Variable interest rate [4],[5],[11],[12],[18],[19]   6.75%    
Interest Rate [4],[5],[7],[11],[12],[18],[19]   11.33%    
Cost [4],[5],[9],[11],[12],[18],[19]   $ (71,000)    
Fair Value [4],[5],[11],[12],[18],[19]   $ (71,000)    
Percentage of Net Assets [4],[5],[11],[12],[18],[19]   (0.01%)    
Investment, Identifier [Axis]: Randy's Holdings, Inc. 1        
Variable interest rate [3],[4] 6.50% 6.50%   6.50%
Interest Rate [3],[4],[7] 11.88% 10.59%   11.88%
Par Amount [3],[4] $ 6,684,000 $ 6,743,000    
Cost [3],[4],[20] 6,506,000 6,545,000    
Fair Value [3],[4] $ 6,638,000 $ 6,545,000    
Percentage of Net Assets [3],[4] 0.45% 0.47%   0.45%
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 2,248,000 $ 2,248,000    
Fair Value $ (16,000) $ (31,000)    
Investment, Identifier [Axis]: Randy's Holdings, Inc. 2        
Variable interest rate [3],[4] 6.50% [2] 6.50% [12]   6.50% [2]
Interest Rate [3],[4],[7] 11.88% [2] 10.59% [12]   11.88% [2]
Cost [3],[4],[20] $ (29,000) [2] $ (31,000) [12]    
Fair Value [3],[4] $ (15,000) [2] $ (31,000) [12]    
Percentage of Net Assets   0.00%    
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 608,000 $ 757,000    
Fair Value $ (4,000) $ (22,000)    
Investment, Identifier [Axis]: Randy's Holdings, Inc. 3        
Variable interest rate [3],[4] 6.50% [2] 6.50% [12]   6.50% [2]
Interest Rate [3],[4],[7] 11.88% [2] 10.59% [12]   11.88% [2]
Par Amount [3],[4] $ 292,000 [2] $ 142,000 [12]    
Cost [3],[4],[20] 269,000 [2] 116,000 [12]    
Fair Value [3],[4] $ 285,000 [2] $ 116,000 [12]    
Percentage of Net Assets [3],[4] 0.02% [2] 0.01% [12]   0.02% [2]
Investment, Identifier [Axis]: Raptor Merger Sub Debt, LLC        
Unused Fee Rate 0.38%      
Unfunded Commitment $ 1,954,000      
Fair Value $ (9,000)      
Investment, Identifier [Axis]: Raptor Merger Sub Debt, LLC 1        
Variable interest rate [13],[14],[18] 6.75%     6.75%
Interest Rate [13],[14],[18] 12.14%     12.14%
Par Amount [13],[14],[18] $ 32,314,000      
Cost [13],[14],[18] 31,450,000      
Fair Value [13],[14],[18] $ 32,165,000      
Percentage of Net Assets [13],[14],[18] 2.17%     2.17%
Investment, Identifier [Axis]: Raptor Merger Sub Debt, LLC 2        
Variable interest rate [14],[15],[18] 6.75%     6.75%
Interest Rate [14],[15],[18] 12.14%     12.14%
Par Amount [14],[15],[18] $ 488,000      
Cost [14],[15],[18] 428,000      
Fair Value [14],[15],[18] $ 477,000      
Percentage of Net Assets [14],[15],[18] 0.03%     0.03%
Investment, Identifier [Axis]: Recovery Point Systems, Inc.        
Par Amount $ 1,000,000,000 [14],[23] $ 1,000,000,000 [4],[24]    
Par Amount, Shares (in shares) | shares   1,000,000 [5],[25] 1,000,000,000  
Cost 1,000,000 [14],[20],[23] $ 1,000,000 [1],[4],[5],[24],[25] $ 1,000,000  
Fair Value $ 1,020,000 [14],[23] $ 760,000 [4],[5],[24],[25] $ 750,000  
Percentage of Net Assets 0.07% [14],[23] 0.05% [4],[5],[24],[25] 0.06% 0.07% [14],[23]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 4,000,000 $ 4,000,000 $ 4,000,000  
Fair Value   $ (5,000)    
Investment, Identifier [Axis]: Recovery Point Systems, Inc. 1        
Variable interest rate 6.00% [3],[13],[14] 6.50% 6.50% 6.00% [3],[13],[14]
Interest Rate 11.42% [3],[13],[14] 10.26% 7.50% 11.42% [3],[13],[14]
Par Amount $ 40,740,000 [3],[13],[14] $ 41,055,000 $ 41,475,000  
Cost 40,298,000 [3],[13],[14] 40,514,000 40,805,000  
Fair Value $ 40,740,000 [3],[13],[14] $ 41,002,000 $ 41,475,000  
Percentage of Net Assets 2.75% [3],[13],[14] 2.93% 3.49% 2.75% [3],[13],[14]
Investment, Identifier [Axis]: Recovery Point Systems, Inc. 2        
Variable interest rate 6.00% [3],[14],[15] 6.50% [15] 6.50% 6.00% [3],[14],[15]
Interest Rate 11.42% [3],[14],[15] 10.26% [15] 7.50% 11.42% [3],[14],[15]
Cost $ (38,000) [3],[14],[15] $ (48,000) [15] $ (61,000)  
Fair Value [15]   $ (5,000)    
Percentage of Net Assets   0.00% 0.00%  
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc.        
Variable interest rate 8.50% [3],[14] 8.50% [3],[4],[5] 8.50% [6] 8.50% [3],[14]
Interest Rate 13.99% [3],[14],[27] 12.67% [3],[4],[5],[22] 9.50% [6],[8] 13.99% [3],[14],[27]
Par Amount $ 19,000,000 [3],[14] $ 19,000,000 [3],[4],[5] $ 19,000,000 [6]  
Cost 18,707,000 [3],[14],[20] 18,653,000 [1],[3],[4],[5] 18,584,000 [1],[6]  
Fair Value $ 18,867,000 [3],[14] $ 17,904,000 [3],[4],[5] $ 19,000,000 [6]  
Percentage of Net Assets 1.27% [3],[14] 1.28% [3],[4],[5] 1.60% [6] 1.27% [3],[14]
Investment, Identifier [Axis]: Redwood Services Group, LLC        
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 3,620,000 $ 729,000    
Fair Value $ (35,000) $ (32,000)    
Investment, Identifier [Axis]: Redwood Services Group, LLC 1        
Variable interest rate 6.00% [14],[18] 6.00%   6.00% [14],[18]
Interest Rate 11.75% [14],[18] 10.68%   11.75% [14],[18]
Par Amount $ 10,857,000 [14],[18] $ 10,939,000    
Cost 10,668,000 [14],[18] 10,732,000    
Fair Value $ 10,669,000 [14],[18] $ 10,462,000    
Percentage of Net Assets 0.72% [14],[18] 0.75%   0.72% [14],[18]
Investment, Identifier [Axis]: Redwood Services Group, LLC 2        
Variable interest rate [15] 6.00% [14],[18] 6.00%   6.00% [14],[18]
Interest Rate [15] 11.75% [14],[18] 10.68%   11.75% [14],[18]
Par Amount [15] $ 2,597,000 [14],[18] $ 1,880,000    
Cost [15] 2,534,000 [14],[18] 1,848,000    
Fair Value [15] $ 2,534,000 [14],[18] $ 1,766,000    
Percentage of Net Assets [15] 0.17% [14],[18] 0.13%   0.17% [14],[18]
Investment, Identifier [Axis]: Revalize, Inc.        
Variable interest rate 10.00% [3],[14],[23] 10.00% [5],[25],[37]   10.00% [3],[14],[23]
Interest Rate [3],[4],[24]   10.00%    
Par Amount [3] $ 2,255,000 [14],[23] $ 2,255,000 [4],[24]    
Par Amount, Shares (in shares) | shares   2,255 [5],[25],[37] 1,500,000  
Cost 2,569,000 [3],[14],[20],[23] $ 2,391,000 [1],[3],[4],[5],[24],[25],[37] $ 1,470,000  
Fair Value $ 2,729,000 [3],[14],[23] $ 2,281,000 [3],[4],[5],[24],[25],[37] $ 1,470,000  
Percentage of Net Assets 0.18% [3],[14],[23] 0.16% [3],[4],[5],[24],[25],[37] 0.12% 0.18% [3],[14],[23]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 62,000 $ 71,000    
Fair Value $ (2,000) $ (3,000)    
Investment, Identifier [Axis]: Revalize, Inc. 1        
Variable interest rate 5.75% [14],[18] 5.75% [3],[4],[5] 5.25% [6],[10] 5.75% [14],[18]
Interest Rate 11.30% [14],[18],[27] 10.48% [3],[4],[5] 6.25% [6],[8],[10] 11.30% [14],[18],[27]
Par Amount   $ 19,652,000 [3],[4],[5] $ 19,715,000 [6],[10] € 19,505 [14],[18]
Cost   19,543,000 [3],[4],[5] 19,570,000 [1],[6],[10] 19,418 [14],[18],[20]
Fair Value   $ 18,737,000 [3],[4],[5] $ 19,512,000 [6],[10] € 19,026 [14],[18]
Percentage of Net Assets 1.28% [14],[18] 1.34% [3],[4],[5] 1.64% [6],[10] 1.28% [14],[18]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 708,000  
Fair Value     $ (7,000)  
Investment, Identifier [Axis]: Revalize, Inc. 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [2],[3],[4],[5],[11] 5.25% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.30% [3],[14],[15],[27] 10.48% [2],[3],[4],[5],[11] 6.25% [6],[8],[10] 11.30% [3],[14],[15],[27]
Par Amount | € [3],[14],[15]       € 9
Cost   $ (1,000) [2],[3],[4],[5],[11] $ (1,000) [1],[6],[10] 8 [3],[14],[15],[20]
Fair Value   $ (3,000) [2],[3],[4],[5],[11] $ (1,000) [6],[10] € 7 [3],[14],[15]
Percentage of Net Assets   0.00% [5],[11] 0.00% [6],[10]  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 71,000  
Fair Value     $ (1,000)  
Investment, Identifier [Axis]: Reveal Data Solutions        
Par Amount [14],[23] $ 477,846,000      
Cost [14],[20],[23] 621,000      
Fair Value [14],[23] $ 621,000      
Percentage of Net Assets [14],[23] 0.04%     0.04%
Investment, Identifier [Axis]: Riskonnect Parent, LLC        
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 558,000 $ 558,000    
Fair Value $ (3,000) $ (21,000)    
Investment, Identifier [Axis]: Riskonnect Parent, LLC 1        
Variable interest rate [18] 5.50% [14] 5.50% [4],[5],[19]   5.50% [14]
Interest Rate [18] 11.04% [14],[27] 10.08% [4],[5],[19]   11.04% [14],[27]
Par Amount [18]   $ 444,000 [4],[5],[19]   € 520 [14]
Cost [18]   436,000 [4],[5],[19]   512 [14],[20]
Fair Value [18]   $ 427,000 [4],[5],[19]   € 517 [14]
Percentage of Net Assets [18] 0.03% [14] 0.03% [4],[5],[19]   0.03% [14]
Investment, Identifier [Axis]: Riskonnect Parent, LLC 2        
Variable interest rate [18] 5.50% [14],[15] 5.50% [2],[4],[5],[11],[19]   5.50% [14],[15]
Interest Rate [18] 11.04% [14],[15],[27] 10.08% [2],[4],[5],[11],[19]   11.04% [14],[15],[27]
Par Amount [2],[4],[5],[11],[18],[19]   $ 80,000    
Cost [18]   73,000 [2],[4],[5],[11],[19]   € (5) [14],[15],[20]
Fair Value [18]   $ 55,000 [2],[4],[5],[11],[19]   € (3) [14],[15]
Percentage of Net Assets [5],[11],[19]   0.00%    
Investment, Identifier [Axis]: RoadOne IntermodaLogistics 1        
Variable interest rate [3],[4] 6.25% 6.25%   6.25%
Interest Rate [3],[4],[7] 11.72% 10.81%   11.72%
Par Amount [3],[4] $ 1,660,000 $ 1,672,000    
Cost [3],[4],[20] 1,614,000 1,622,000    
Fair Value [3],[4] $ 1,629,000 $ 1,622,000    
Percentage of Net Assets [3],[4] 0.11% 0.12%   0.11%
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 295,000 $ 426,000    
Fair Value $ (5,000) $ (6,000)    
Investment, Identifier [Axis]: RoadOne IntermodaLogistics 2        
Variable interest rate [3],[4] 6.25% [2] 6.25% [12]   6.25% [2]
Interest Rate [3],[4],[7] 11.72% [2] 10.81% [12]   11.72% [2]
Par Amount [2],[3],[4] $ 130,000      
Cost [3],[4],[20] 122,000 [2] $ (6,000) [12]    
Fair Value [3],[4] $ 122,000 [2] $ (6,000) [12]    
Percentage of Net Assets 0.01% [2],[3],[4] 0.00%   0.01% [2],[3],[4]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 310,000 $ 255,000    
Fair Value $ (6,000) $ (8,000)    
Investment, Identifier [Axis]: RoadOne IntermodaLogistics 3        
Variable interest rate [3],[4] 6.25% [2] 6.25% [12]   6.25% [2]
Interest Rate [3],[4],[7] 11.72% [2] 10.81% [12]   11.72% [2]
Par Amount [3],[4] $ 20,000 [2] $ 75,000 [12]    
Cost [3],[4],[20] 12,000 [2] 65,000 [12]    
Fair Value [3],[4] $ 14,000 [2] $ 65,000 [12]    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Securonix, Inc.        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 3,782,000 $ 3,782,000    
Fair Value $ (112,000) $ (137,000)    
Investment, Identifier [Axis]: Securonix, Inc. 1        
Variable interest rate [18] 6.50% [14] 6.50% [4],[5],[19]   6.50% [14]
Interest Rate [18] 11.27% [14],[27] 10.10% [4],[5],[19]   11.27% [14],[27]
Par Amount [18]   $ 21,010,000 [4],[5],[19]   € 21,010 [14]
Cost [18]   20,678,000 [4],[5],[19]   20,715 [14],[20]
Fair Value [18]   $ 20,249,000 [4],[5],[19]   € 20,390 [14]
Percentage of Net Assets [18] 1.38% [14] 1.45% [4],[5],[19]   1.38% [14]
Investment, Identifier [Axis]: Securonix, Inc. 2        
Variable interest rate [18] 6.50% [15] 6.50% [2],[4],[5],[11],[19]   6.50% [15]
Interest Rate [18] 11.27% [15],[27] 10.10% [2],[4],[5],[11],[19]   11.27% [15],[27]
Cost [18]   $ (58,000) [2],[4],[5],[11],[19]   € (50) [15],[20]
Fair Value [18]   $ (137,000) [2],[4],[5],[11],[19]   € (112) [15]
Percentage of Net Assets [18] (0.01%) [15] (0.01%) [2],[4],[5],[11],[19]   (0.01%) [15]
Investment, Identifier [Axis]: Shelby Co-invest, LP (Spectrum Automotive)        
Par Amount $ 8,500,000 [14],[23] $ 8,500,000 [4],[24]    
Par Amount, Shares (in shares) | shares   8,500 [5],[25] 8,500,000  
Cost 850,000 [14],[20],[23] $ 850,000 [1],[4],[5],[24],[25] $ 850,000  
Fair Value $ 1,346,000 [14],[23] $ 1,194,000 [4],[5],[24],[25] $ 993,000  
Percentage of Net Assets 0.09% [14],[23] 0.09% [4],[5],[24],[25] 0.08% 0.09% [14],[23]
Investment, Identifier [Axis]: Sherlock Buyer Corp. 1        
Variable interest rate 5.75% [3],[14] 5.75% [4],[5],[18],[19] 5.75% [6],[19] 5.75% [3],[14]
Interest Rate 11.24% [3],[14] 10.48% [4],[5],[7],[18],[19],[22] 6.50% [6],[8],[19] 11.24% [3],[14]
Par Amount $ 10,977,000 [3],[14] $ 11,061,000 [4],[5],[18],[19] $ 11,145,000 [6],[19]  
Cost 10,803,000 [3],[14] 10,867,000 [1],[4],[5],[18],[19],[20] 10,923,000 [1],[6],[19]  
Fair Value $ 10,940,000 [3],[14] $ 10,816,000 [4],[5],[18],[19] $ 10,923,000 [6],[19]  
Percentage of Net Assets 0.74% [3],[14] 0.77% [4],[5],[18],[19] 0.92% [6],[19] 0.74% [3],[14]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 3,215,000 $ 3,215,000 $ 3,215,000  
Fair Value $ (11,000) $ (71,000) $ (32,000)  
Investment, Identifier [Axis]: Sherlock Buyer Corp. 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [4],[5],[12],[18],[19] 5.75% [6],[10],[19] 5.75% [3],[14],[15]
Interest Rate 11.24% [3],[14],[15] 10.48% [4],[5],[7],[12],[18],[19],[22] 6.50% [6],[8],[10],[19] 11.24% [3],[14],[15]
Cost $ (24,000) [3],[14],[15] $ (27,000) [1],[4],[5],[12],[18],[19],[20] $ (32,000) [1],[6],[10],[19]  
Fair Value $ (11,000) [3],[14],[15] $ (71,000) [4],[5],[12],[18],[19] $ (32,000) [6],[10],[19]  
Percentage of Net Assets [19]   (0.01%) [4],[5],[12],[18] 0.00% [6],[10]  
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,286,000 $ 1,286,000 $ 1,286,000  
Fair Value $ (4,000) $ (28,000) $ (25,000)  
Investment, Identifier [Axis]: Sherlock Buyer Corp. 3        
Variable interest rate 5.75% [3],[14],[15] 5.75% [4],[5],[12],[18],[19] 5.75% [6],[10],[19] 5.75% [3],[14],[15]
Interest Rate 11.24% [3],[14],[15] 10.48% [4],[5],[7],[12],[18],[19],[22] 6.50% [6],[8],[10],[19] 11.24% [3],[14],[15]
Cost $ (18,000) [3],[14],[15] $ (21,000) [1],[4],[5],[12],[18],[19],[20] $ (25,000) [1],[6],[10],[19]  
Fair Value $ (4,000) [3],[14],[15] $ (28,000) [4],[5],[12],[18],[19] $ (25,000) [6],[10],[19]  
Percentage of Net Assets [19]   0.00% [5] 0.00% [6],[10]  
Investment, Identifier [Axis]: SitusAMC Holdings Corp.        
Variable interest rate 5.50% [14],[18] 5.50% [4],[18] 5.75% [6],[19] 5.50% [14],[18]
Interest Rate 10.99% [14],[18] 10.23% [4],[7],[18] 6.50% [6],[8],[19] 10.99% [14],[18]
Par Amount $ 3,337,000 [14],[18] $ 3,573,000 [4],[18] $ 3,600,000 [6],[19]  
Cost 3,310,000 [14],[18] 3,542,000 [4],[9],[18] 3,564,000 [1],[6],[19]  
Fair Value $ 3,301,000 [14],[18] $ 3,417,000 [4],[18] $ 3,564,000 [6],[19]  
Percentage of Net Assets 0.22% [14],[18] 0.24% [4],[18] 0.30% [6],[19] 0.22% [14],[18]
Investment, Identifier [Axis]: Skykick, Inc.        
Par Amount $ 134,101,000 [14],[23] $ 134,101,000 [4],[24]    
Par Amount, Shares (in shares) | shares   134,101 [5],[25] 134,101,000  
Cost 1,275,000 [14],[20],[23] $ 1,275,000 [1],[4],[5],[24],[25] $ 1,275,000  
Fair Value $ 1,275,000 [14],[23] $ 963,000 [4],[5],[24],[25] $ 1,298,000  
Percentage of Net Assets 0.09% [14],[23] 0.07% [4],[5],[24],[25] 0.11% 0.09% [14],[23]
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 1,155,000 $ 2,625,000  
Fair Value   $ (29,000) $ (31,000)  
Investment, Identifier [Axis]: Skykick, Inc. 1        
Variable interest rate 7.25% [3],[14] 7.25% [3],[4],[5] 7.25% [6] 7.25% [3],[14]
Interest Rate 12.84% [3],[14],[27] 11.00% [3],[4],[5] 8.25% [6],[8] 12.84% [3],[14],[27]
Par Amount   $ 6,300,000 [3],[4],[5] $ 6,300,000 [6] € 6,300 [3],[14]
Cost   6,171,000 [3],[4],[5] 6,149,000 [1],[6] 6,187 [3],[14],[20]
Fair Value   $ 6,142,000 [3],[4],[5] $ 6,149,000 [6] € 5,872 [3],[14]
Percentage of Net Assets 0.40% [3],[14] 0.44% [3],[4],[5] 0.52% [6] 0.40% [3],[14]
Investment, Identifier [Axis]: Skykick, Inc. 2        
Variable interest rate 7.25% [3],[14] 7.25% [2],[3],[4],[5],[11] 7.25% [6],[10] 7.25% [3],[14]
Interest Rate 12.84% [3],[14],[27] 11.00% [2],[3],[4],[5],[11] 8.25% [6],[8],[10] 12.84% [3],[14],[27]
Par Amount [3]   $ 1,470,000 [2],[4],[5],[11]   € 2,415 [14]
Cost   1,427,000 [2],[3],[4],[5],[11] $ (31,000) [1],[6],[10] 2,369 [3],[14],[20]
Fair Value   $ 1,404,000 [2],[3],[4],[5],[11] $ (31,000) [6],[10] € 2,251 [3],[14]
Percentage of Net Assets 0.15% [3],[14] 0.10% [2],[3],[4],[5],[11] 0.00% [6],[10] 0.15% [3],[14]
Investment, Identifier [Axis]: Smarsh, Inc. 1        
Variable interest rate [18] 6.50% [14] 6.50% [4]   6.50% [14]
Interest Rate [18] 11.84% [14] 11.29% [4],[7]   11.84% [14]
Par Amount [18] $ 4,286,000 [14] $ 4,286,000 [4]    
Cost [18] 4,215,000 [14] 4,208,000 [4],[9]    
Fair Value [18] $ 4,200,000 [14] $ 4,126,000 [4]    
Percentage of Net Assets [18] 0.28% [14] 0.30% [4]   0.28% [14]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 536,000 $ 536,000    
Fair Value $ (11,000) $ (20,000)    
Investment, Identifier [Axis]: Smarsh, Inc. 2        
Variable interest rate [18] 6.50% [14],[15] 6.50% [4],[12]   6.50% [14],[15]
Interest Rate [18] 11.84% [14],[15] 11.29% [4],[7],[12]   11.84% [14],[15]
Par Amount [18] $ 536,000 [14],[15] $ 536,000 [4],[12]    
Cost [18] 523,000 [14],[15] 521,000 [4],[9],[12]    
Fair Value [18] $ 514,000 [14],[15] $ 496,000 [4],[12]    
Percentage of Net Assets [18] 0.03% [14],[15] 0.04% [4],[12]   0.03% [14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 268,000 $ 268,000    
Fair Value $ (5,000) $ (10,000)    
Investment, Identifier [Axis]: Smarsh, Inc. 3        
Variable interest rate [18] 6.50% [14],[15] 6.50% [4],[12]   6.50% [14],[15]
Interest Rate [18] 11.84% [14],[15] 11.29% [4],[7],[12]   11.84% [14],[15]
Cost [18] $ (4,000) [14],[15] $ (5,000) [4],[9],[12]    
Fair Value [18] $ (5,000) [14],[15] $ (10,000) [4],[12]    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Sonny’s Enterprises, Inc.        
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 21,225,000  
Fair Value     $ (410,000)  
Investment, Identifier [Axis]: Sonny’s Enterprises, Inc. 1        
Variable interest rate [6]     5.50%  
Interest Rate [6],[22]     6.50%  
Par Amount [6]     $ 7,075,000  
Cost [1],[6]     6,938,000  
Fair Value [6]     $ 6,938,000  
Percentage of Net Assets [6]     0.58%  
Investment, Identifier [Axis]: Sonny’s Enterprises, Inc. 2        
Variable interest rate [6],[21]     6.75%  
Interest Rate [6],[21],[22]     7.75%  
Par Amount [6],[21]     $ 5,414,000  
Cost [1],[6],[21]     5,321,000  
Fair Value [6],[21]     $ 5,321,000  
Percentage of Net Assets [6],[21]     0.45%  
Investment, Identifier [Axis]: Sonny’s Enterprises, Inc. 3        
Variable interest rate [6],[10]     6.75%  
Interest Rate [6],[10],[22]     7.75%  
Par Amount [6],[10]     $ 14,447,000  
Cost [1],[6],[10]     14,203,000  
Fair Value [6],[10]     $ 14,203,000  
Percentage of Net Assets [6],[10]     1.19%  
Investment, Identifier [Axis]: Sonny’s Enterprises, Inc. 4        
Variable interest rate [6],[10]     5.50%  
Interest Rate [6],[10],[22]     6.50%  
Cost [1],[6],[10]     $ (410,000)  
Fair Value [6],[10]     $ (410,000)  
Percentage of Net Assets [6],[10]     (0.03%)  
Investment, Identifier [Axis]: Sonny's Enterprises, LLC 1        
Variable interest rate [3],[4] 6.75% [13] 6.04% [17]   6.75% [13]
Interest Rate [3],[4],[7] 12.27% [13] 10.29% [17]   12.27% [13]
Par Amount [3],[4] $ 40,817,000 [13] $ 12,363,000 [17]    
Cost [3],[4],[20] 40,296,000 [13] 12,178,000 [17]    
Fair Value [3],[4] $ 40,780,000 [13] $ 11,839,000 [17]    
Percentage of Net Assets [3],[4] 2.75% [13] 0.85% [17]   2.75% [13]
Investment, Identifier [Axis]: Sonny's Enterprises, LLC 2        
Variable interest rate [3],[4] 6.75% [13] 6.75%   6.75% [13]
Interest Rate [3],[4],[7] 12.27% [13] 11.00%   12.27% [13]
Par Amount [3],[4] $ 5,319,000 [13] $ 34,154,000    
Cost [3],[4],[20] 5,257,000 [13] 33,656,000    
Fair Value [3],[4] $ 5,314,000 [13] $ 32,706,000    
Percentage of Net Assets [3],[4] 0.36% [13] 2.34%   0.36% [13]
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC        
Variable interest rate   5.50%    
Interest Rate   9.93%    
Par Amount   $ 899,000    
Cost   883,000    
Fair Value   $ 854,000    
Percentage of Net Assets   0.06%    
Investment, Identifier [Axis]: Spectrio, LLC 1        
Variable interest rate [3],[13],[14] 6.00%     6.00%
Interest Rate [3],[13],[14] 11.50%     11.50%
Par Amount [3],[13],[14] $ 31,329,000      
Cost [3],[13],[14] 31,004,000      
Fair Value [3],[13],[14] $ 29,913,000      
Percentage of Net Assets [3],[13],[14] 2.02%     2.02%
Investment, Identifier [Axis]: Spectrio, LLC 2        
Variable interest rate [3],[14] 6.00%     6.00%
Interest Rate [3],[14] 11.50%     11.50%
Par Amount [3],[14] $ 12,638,000      
Cost [3],[14] 12,595,000      
Fair Value [3],[14] $ 12,067,000      
Percentage of Net Assets [3],[14] 0.81%     0.81%
Investment, Identifier [Axis]: Spectrio, LLC 3        
Variable interest rate [3],[14] 6.00%     6.00%
Interest Rate [3],[14] 11.50%     11.50%
Par Amount [3],[14] $ 3,947,000      
Cost [3],[14] 3,905,000      
Fair Value [3],[14] $ 3,769,000      
Percentage of Net Assets [3],[14] 0.25%     0.25%
Investment, Identifier [Axis]: Spectrum Automotive Holdings Corp. 1        
Variable interest rate [4],[18] 5.75% [13] 5.75% [17]   5.75% [13]
Interest Rate [4],[7],[18] 11.18% [13] 10.48% [17]   11.18% [13]
Par Amount [4],[18] $ 23,470,000 [13] $ 23,650,000 [17]    
Cost [4],[18],[20] 23,210,000 [13] 23,358,000 [17]    
Fair Value [4],[18] $ 22,853,000 [13] $ 22,274,000 [17]    
Percentage of Net Assets [4],[18] 1.54% [13] 1.59% [17]   1.54% [13]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 1,154,000 $ 1,917,000    
Fair Value $ (30,000) $ (112,000)    
Investment, Identifier [Axis]: Spectrum Automotive Holdings Corp. 2        
Variable interest rate [4],[18] 5.75% [2] 5.75% [12]   5.75% [2]
Interest Rate [4],[7],[18] 11.18% [2] 10.48% [12]   11.18% [2]
Par Amount [4],[18] $ 5,379,000 [2] $ 4,656,000 [12]    
Cost [4],[18],[20] 5,312,000 [2] 4,585,000 [12]    
Fair Value [4],[18] $ 5,207,000 [2] $ 4,273,000 [12]    
Percentage of Net Assets [4],[18] 0.35% [2] 0.31% [12]   0.35% [2]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 881,000 $ 881,000    
Fair Value $ (23,000) $ (51,000)    
Investment, Identifier [Axis]: Spectrum Automotive Holdings Corp. 3        
Variable interest rate [4],[18] 5.75% [2] 5.75% [12]   5.75% [2]
Interest Rate [4],[7],[18] 11.18% [2] 10.48% [12]   11.18% [2]
Cost [4],[18],[20] $ (8,000) [2] $ (10,000) [12]    
Fair Value [4],[18] $ (23,000) [2] $ (51,000) [12]    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Spotless Brands, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 145,000 $ 145,000    
Fair Value $ (2,000) $ (6,000)    
Investment, Identifier [Axis]: Spotless Brands, LLC 1        
Variable interest rate [3] 6.50% [14] 6.50% [4]   6.50% [14]
Interest Rate [3] 12.00% [14] 10.71% [4],[7]   12.00% [14]
Par Amount [3] $ 4,514,000 [14] $ 4,549,000 [4]    
Cost [3] 4,438,000 [14] 4,463,000 [4],[9]    
Fair Value [3] $ 4,458,000 [14] $ 4,371,000 [4]    
Percentage of Net Assets [3] 0.30% [14] 0.31% [4]   0.30% [14]
Investment, Identifier [Axis]: Spotless Brands, LLC 2        
Variable interest rate [3] 6.50% [14] 6.50% [4]   6.50% [14]
Interest Rate [3] 12.00% [14] 10.71% [4],[7]   12.00% [14]
Par Amount [3] $ 855,000 [14] $ 860,000 [4]    
Cost [3] 840,000 [14] 843,000 [4],[9]    
Fair Value [3] $ 845,000 [14] $ 826,000 [4]    
Percentage of Net Assets [3] 0.06% [14] 0.06% [4]   0.06% [14]
Investment, Identifier [Axis]: Spotless Brands, LLC 3        
Variable interest rate [3] 6.50% [14],[15] 6.50% [4],[12]   6.50% [14],[15]
Interest Rate [3] 12.00% [14],[15] 10.71% [4],[7],[12]   12.00% [14],[15]
Cost [3] $ (2,000) [14],[15] $ (3,000) [4],[9],[12]    
Fair Value [3] $ (2,000) [14],[15] $ (6,000) [4],[12]    
Percentage of Net Assets   0.00%    
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC 1        
Variable interest rate 5.75% [14],[18] 5.75%   5.75% [14],[18]
Interest Rate 11.24% [14],[18] 10.48%   11.24% [14],[18]
Par Amount $ 4,309,000 [14],[18] $ 4,342,000    
Cost 4,257,000 [14],[18] 4,284,000    
Fair Value $ 4,239,000 [14],[18] $ 4,111,000    
Percentage of Net Assets 0.29% [14],[18] 0.29%   0.29% [14],[18]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 423,000 $ 737,000    
Fair Value $ (7,000) $ (39,000)    
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC 2        
Variable interest rate [15] 5.75% [14],[18] 5.75%   5.75% [14],[18]
Interest Rate [15] 11.24% [14],[18] 10.48%   11.24% [14],[18]
Par Amount [15] $ 820,000 [14],[18] $ 511,000    
Cost [15] 808,000 [14],[18] 500,000    
Fair Value [15] $ 800,000 [14],[18] $ 444,000    
Percentage of Net Assets [15] 0.05% [14],[18] 0.03%   0.05% [14],[18]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 538,000 $ 175,000    
Fair Value $ (9,000) $ (9,000)    
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC 3        
Variable interest rate [15] 5.75% [14],[18] 4.75%   5.75% [14],[18]
Interest Rate [15] 11.24% [14],[18] 12.25%   11.24% [14],[18]
Par Amount [15] $ 88,000 [14],[18] $ 450,000    
Cost [15] 81,000 [14],[18] 442,000    
Fair Value [15] $ 77,000 [14],[18] $ 417,000    
Percentage of Net Assets [15] 0.01% [14],[18] 0.03%   0.01% [14],[18]
Investment, Identifier [Axis]: Summit Acquisition, Inc. 1        
Variable interest rate [13],[14],[18] 6.75%     6.75%
Interest Rate [13],[14],[18] 12.14%     12.14%
Par Amount [13],[14],[18] $ 7,371,000      
Cost [13],[14],[18] 7,158,000      
Fair Value [13],[14],[18] $ 7,232,000      
Percentage of Net Assets [13],[14],[18] 0.49%     0.49%
Unused Fee Rate 1.00%      
Unfunded Commitment $ 1,638,000      
Fair Value $ (31,000)      
Investment, Identifier [Axis]: Summit Acquisition, Inc. 2        
Variable interest rate [14],[15],[18] 6.75%     6.75%
Interest Rate [14],[15],[18] 12.14%     12.14%
Cost [14],[15],[18] $ (23,000)      
Fair Value [14],[15],[18] $ (31,000)      
Unused Fee Rate 0.50%      
Unfunded Commitment $ 819,000      
Fair Value $ (15,000)      
Investment, Identifier [Axis]: Summit Acquisition, Inc. 3        
Variable interest rate [14],[15],[18] 6.75%     6.75%
Interest Rate [14],[15],[18] 12.14%     12.14%
Cost [14],[15],[18] $ (23,000)      
Fair Value [14],[15],[18] $ (15,000)      
Investment, Identifier [Axis]: Summit Buyer, LLC 1        
Variable interest rate 5.75% [3],[4] 5.75% [3],[4],[5] 5.00% [6] 5.75% [3],[4]
Interest Rate 11.24% [3],[4] 10.13% [3],[4],[5],[7] 6.00% [6],[22] 11.24% [3],[4]
Par Amount $ 21,952,000 [3],[4] $ 22,120,000 [3],[4],[5] $ 22,344,000 [6]  
Cost 21,701,000 [3],[4] 21,795,000 [3],[4],[5],[9] 21,923,000 [1],[6]  
Fair Value $ 21,701,000 [3],[4] $ 21,142,000 [3],[4],[5] $ 22,167,000 [6]  
Percentage of Net Assets 1.46% [3],[4] 1.51% [3],[4],[5] 1.86% [6] 1.46% [3],[4]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 227,000 $ 3,304,000 $ 13,656,000  
Fair Value $ (3,000) $ (146,000) $ (108,000)  
Investment, Identifier [Axis]: Summit Buyer, LLC 2        
Variable interest rate 5.75% [2],[3],[4] 5.75% [3],[4],[5],[11],[12] 5.00% [6],[10] 5.75% [2],[3],[4]
Interest Rate 11.24% [2],[3],[4] 10.13% [3],[4],[5],[7],[11],[12] 6.00% [6],[10],[22] 11.24% [2],[3],[4]
Par Amount $ 32,063,000 [2],[3],[4] $ 28,996,000 [3],[4],[5],[11],[12] $ 18,887,000 [6],[10]  
Cost 31,684,000 [2],[3],[4] 28,544,000 [3],[4],[5],[9],[11],[12] 18,416,000 [1],[6],[10]  
Fair Value $ 31,684,000 [2],[3],[4] $ 27,569,000 [3],[4],[5],[11],[12] $ 18,630,000 [6],[10]  
Percentage of Net Assets 2.14% [2],[3],[4] 1.97% [3],[4],[5],[11],[12] 1.57% [6],[10] 2.14% [2],[3],[4]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,881,000 $ 2,420,000 $ 2,420,000  
Fair Value $ (19,000) $ (107,000) $ (19,000)  
Investment, Identifier [Axis]: Summit Buyer, LLC 3        
Variable interest rate 4.75% [2],[4] 5.75% [3],[4],[5],[11],[12] 5.00% [6],[10] 4.75% [2],[4]
Interest Rate 13.25% [2],[4] 10.13% [3],[4],[5],[7],[11],[12] 6.00% [6],[10],[22] 13.25% [2],[4]
Par Amount [2],[4] $ 562,000      
Cost 537,000 [2],[4] $ (32,000) [3],[4],[5],[9],[11],[12] $ (43,000) [1],[6],[10]  
Fair Value $ 537,000 [2],[4] $ (107,000) [3],[4],[5],[11],[12] $ (19,000) [6],[10]  
Percentage of Net Assets 0.04% [2],[4] (0.01%) [3],[4],[5],[11],[12] 0.00% [6],[10] 0.04% [2],[4]
Investment, Identifier [Axis]: Superman Holdings, LLC        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 380,000      
Fair Value $ (5,000)      
Investment, Identifier [Axis]: Superman Holdings, LLC 1        
Variable interest rate [3],[14] 5.75%     5.75%
Interest Rate [3],[14] 11.52%     11.52%
Par Amount [3],[14] $ 1,605,000      
Cost [3],[14] 1,568,000      
Fair Value [3],[14] $ 1,586,000      
Percentage of Net Assets [3],[14] 0.11%     0.11%
Investment, Identifier [Axis]: Superman Holdings, LLC 2        
Variable interest rate [3],[14],[15] 5.75%     5.75%
Interest Rate [3],[14],[15] 11.52%     11.52%
Cost [3],[14],[15] $ (4,000)      
Fair Value [3],[14],[15] $ (4,000)      
Investment, Identifier [Axis]: Surewerx Purchaser III, Inc. 1        
Variable interest rate [18] 6.75% [14],[28] 6.75% [4],[5],[19],[29],[30]   6.75% [14],[28]
Interest Rate [18] 12.14% [14],[28] 11.30% [4],[5],[7],[19],[22],[29],[30]   12.14% [14],[28]
Par Amount [18] $ 5,461,000 [14],[28] $ 17,527,000 [4],[5],[19],[29],[30]    
Cost [18] 5,309,000 [14],[28] 17,002,000 [1],[4],[5],[19],[20],[29],[30]    
Fair Value [18] $ 5,461,000 [14],[28] $ 17,002,000 [4],[5],[19],[29],[30]    
Percentage of Net Assets [18] 0.37% [14],[28] 1.22% [4],[5],[19],[29],[30]   0.37% [14],[28]
Unused Fee Rate 1.00% 0.50%    
Unfunded Commitment $ 1,128,000 $ 1,681,000    
Fair Value   $ (50,000)    
Investment, Identifier [Axis]: Surewerx Purchaser III, Inc. 2        
Variable interest rate [18] 6.75% [14],[15],[28] 6.75% [4],[5],[12],[19],[29],[30]   6.75% [14],[15],[28]
Interest Rate [18] 12.14% [14],[15],[28] 11.30% [4],[5],[7],[12],[19],[22],[29],[30]   12.14% [14],[15],[28]
Cost [18] $ (20,000) [14],[15],[28] $ (72,000) [1],[4],[5],[12],[19],[20],[29],[30]    
Fair Value [4],[5],[12],[18],[19],[29],[30]   $ (72,000)    
Percentage of Net Assets [4],[5],[12],[18],[19],[29],[30]   (0.01%)    
Unused Fee Rate 0.50% 1.00%    
Unfunded Commitment $ 454,000 $ 3,601,000    
Fair Value   $ (72,000)    
Investment, Identifier [Axis]: Surewerx Purchaser III, Inc. 3        
Variable interest rate [18] 6.75% [14],[15],[28] 6.75% [4],[5],[12],[19],[29],[30]   6.75% [14],[15],[28]
Interest Rate [18] 12.14% [14],[15],[28] 11.30% [4],[5],[7],[12],[19],[22],[29],[30]   12.14% [14],[15],[28]
Par Amount [18] $ 614,000 [14],[15],[28] $ 240,000 [4],[5],[12],[19],[29],[30]    
Cost [18] 586,000 [14],[15],[28] 183,000 [1],[4],[5],[12],[19],[20],[29],[30]    
Fair Value [18] $ 614,000 [14],[15],[28] $ 183,000 [4],[5],[12],[19],[29],[30]    
Percentage of Net Assets [18] 0.04% [14],[15],[28] 0.01% [4],[5],[12],[19],[29],[30]   0.04% [14],[15],[28]
Investment, Identifier [Axis]: Surewerx Topco, LP        
Par Amount $ 512,000 [14],[23],[28] $ 512,000 [4],[24],[38]    
Par Amount, Shares (in shares) | shares [5],[25],[29]   512    
Cost 512,000 [14],[20],[23],[28] $ 512,000 [1],[4],[5],[24],[25],[29],[38]    
Fair Value $ 553,000 [14],[23],[28] $ 512,000 [4],[5],[24],[25],[29],[38]    
Percentage of Net Assets 0.04% [14],[23],[28] 0.04% [4],[5],[24],[25],[29],[38]   0.04% [14],[23],[28]
Investment, Identifier [Axis]: Suveto        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 1,125,000      
Fair Value $ (27,000)      
Investment, Identifier [Axis]: Suveto 1        
Variable interest rate 4.25% [14],[18] 5.00% [15]   4.25% [14],[18]
Interest Rate 9.67% [14],[18] 9.38% [15]   9.67% [14],[18]
Par Amount $ 11,867,000 [14],[18] $ 11,038,000 [15]    
Cost 11,778,000 [14],[18] 10,935,000 [15]    
Fair Value $ 11,588,000 [14],[18] $ 10,461,000 [15]    
Percentage of Net Assets 0.78% [14],[18] 0.75% [15]   0.78% [14],[18]
Unused Fee Rate   1.00%    
Unfunded Commitment   $ 5,081,000    
Fair Value   $ (182,000)    
Investment, Identifier [Axis]: Suveto 2        
Variable interest rate [15] 4.25% [14],[18] 5.00%   4.25% [14],[18]
Interest Rate [15] 9.67% [14],[18] 9.38%   9.67% [14],[18]
Par Amount [15] $ 172,000 [14],[18] $ 810,000    
Cost [15] 157,000 [14],[18] 793,000    
Fair Value [15] $ 141,000 [14],[18] $ 764,000    
Percentage of Net Assets [15] 0.01% [14],[18] 0.05%   0.01% [14],[18]
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 486,000    
Fair Value   (18,000)    
Investment, Identifier [Axis]: Suveto Buyer, LLC        
Par Amount [14],[23],[28] $ 19,257,000      
Par Amount, Shares (in shares) | shares     17,000,000  
Cost 1,926,000 [14],[20],[23],[28]   $ 1,700,000  
Fair Value $ 1,796,000 [14],[23],[28]   $ 1,700,000  
Percentage of Net Assets 0.12% [14],[23],[28]   0.14% 0.12% [14],[23],[28]
Investment, Identifier [Axis]: Suveto Buyer, LLC 1        
Variable interest rate [6],[10],[19]     4.25%  
Interest Rate [6],[8],[10],[19]     5.00%  
Par Amount [6],[10],[19]     $ 7,755,000  
Cost [1],[6],[10],[19]     7,643,000  
Fair Value [6],[10],[19]     $ 7,608,000  
Percentage of Net Assets [6],[10],[19]     0.64%  
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 8,442,000  
Fair Value     $ (78,000)  
Investment, Identifier [Axis]: Suveto Buyer, LLC 2        
Variable interest rate [6],[10]     3.25%  
Interest Rate [6],[8],[10]     6.50%  
Par Amount [6],[10]     $ 590,000  
Cost [1],[6],[10]     575,000  
Fair Value [6],[10]     $ 575,000  
Percentage of Net Assets [6],[10]     0.05%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 707,000  
Fair Value     $ (7,000)  
Investment, Identifier [Axis]: Suveto Co-Invest, LP        
Par Amount [4],[24],[38]   $ 17,000,000    
Par Amount, Shares (in shares) | shares [5],[25],[29]   17,000    
Cost [1],[4],[5],[24],[25],[29],[38]   $ 1,700,000    
Fair Value [4],[5],[24],[25],[29],[38]   $ 1,963,000    
Percentage of Net Assets [4],[5],[24],[25],[29],[38]   0.14%    
Investment, Identifier [Axis]: Sweep Purchaser, LLC 1        
Variable interest rate 5.75% [3],[14] 5.75% [3],[4],[5] 5.75% [6] 5.75% [3],[14]
Interest Rate 11.22% [3],[14] 10.47% [3],[4],[5],[7],[22] 6.75% [6],[8] 11.22% [3],[14]
Par Amount $ 8,638,000 [3],[14] $ 8,704,000 [3],[4],[5] $ 8,793,000 [6]  
Cost 8,537,000 [3],[14] 8,582,000 [1],[3],[4],[5],[20] 8,644,000 [1],[6]  
Fair Value $ 7,954,000 [3],[14] $ 8,239,000 [3],[4],[5] $ 8,644,000 [6]  
Percentage of Net Assets 0.54% [3],[14] 0.59% [3],[4],[5] 0.73% [6] 0.54% [3],[14]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 273,000 $ 273,000 $ 956,000  
Fair Value $ (22,000) $ (15,000) $ (16,000)  
Investment, Identifier [Axis]: Sweep Purchaser, LLC 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[4],[5],[12] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.22% [3],[14],[15] 10.47% [3],[4],[5],[7],[12],[22] 6.75% [6],[8],[10] 11.22% [3],[14],[15]
Par Amount $ 5,889,000 [3],[14],[15] $ 5,934,000 [3],[4],[5],[12] $ 5,029,000 [6],[10]  
Cost 5,813,000 [3],[14],[15] 5,843,000 [1],[3],[4],[5],[12],[20] 4,942,000 [1],[6],[10]  
Fair Value $ 5,401,000 [3],[14],[15] $ 5,601,000 [3],[4],[5],[12] $ 4,942,000 [6],[10]  
Percentage of Net Assets 0.36% [3],[14],[15] 0.40% [3],[4],[5],[12] 0.42% [6],[10] 0.36% [3],[14],[15]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 28,000 $ 1,153,000    
Fair Value $ (2,000) $ (62,000)    
Investment, Identifier [Axis]: Sweep Purchaser, LLC 3        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[4],[5],[12] 4.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.22% [3],[14],[15] 10.47% [3],[4],[5],[7],[12],[22] 8.00% [6],[8],[10] 11.22% [3],[14],[15]
Par Amount $ 1,378,000 [3],[14],[15] $ 253,000 [3],[4],[5],[12] $ 450,000 [6],[10]  
Cost 1,363,000 [3],[14],[15] 235,000 [1],[3],[4],[5],[12],[20] 427,000 [1],[6],[10]  
Fair Value $ 1,267,000 [3],[14],[15] $ 178,000 [3],[4],[5],[12] $ 427,000 [6],[10]  
Percentage of Net Assets 0.09% [3],[14],[15] 0.01% [3],[4],[5],[12] 0.04% [6],[10] 0.09% [3],[14],[15]
Investment, Identifier [Axis]: Syntax Systems Ltd 1        
Variable interest rate 5.75% [14],[18],[28] 5.50% [29] 5.50% 5.75% [14],[18],[28]
Interest Rate 11.17% [14],[18],[28] 10.13% [29] 6.25% 11.17% [14],[18],[28]
Par Amount $ 35,183,000 [14],[18],[28] $ 35,452,000 [29] $ 35,811,000  
Cost 34,909,000 [14],[18],[28] 35,146,000 [29] 35,460,000  
Fair Value $ 34,416,000 [14],[18],[28] $ 33,520,000 [29] $ 35,460,000  
Percentage of Net Assets 2.32% [14],[18],[28] 2.40% [29] 2.98% 2.32% [14],[18],[28]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 9,357,000 $ 9,356,000 $ 9,356,000  
Fair Value $ (204,000) $ (510,000) $ (91,000)  
Investment, Identifier [Axis]: Syntax Systems Ltd 2        
Variable interest rate 5.75% [14],[15],[18],[28] 5.50% [15],[29] 5.50% 5.75% [14],[15],[18],[28]
Interest Rate 11.17% [14],[15],[18],[28] 10.13% [15],[29] 6.25% 11.17% [14],[15],[18],[28]
Cost $ (68,000) [14],[15],[18],[28] $ (78,000) [15],[29] $ (91,000)  
Fair Value $ (204,000) [14],[15],[18],[28] $ (510,000) [15],[29] $ (91,000)  
Percentage of Net Assets (0.01%) [14],[15],[18],[28] (0.04%) [15],[29] (0.01%) (0.01%) [14],[15],[18],[28]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,248,000 $ 1,247,000 $ 2,106,000  
Fair Value $ (27,000) $ (68,000) $ (20,000)  
Investment, Identifier [Axis]: Syntax Systems Ltd 3        
Variable interest rate 5.75% [14],[15],[18],[28] 5.61% [5],[11],[15],[19] 5.50% 5.75% [14],[15],[18],[28]
Interest Rate 11.17% [14],[15],[18],[28] 10.08% [5],[11],[15],[19] 6.25% 11.17% [14],[15],[18],[28]
Par Amount $ 2,495,000 [14],[15],[18],[28] $ 2,495,000 [5],[11],[15],[19] $ 1,637,000  
Cost 2,472,000 [14],[15],[18],[28] 2,466,000 [5],[11],[15],[19] 1,601,000  
Fair Value $ 2,413,000 [14],[15],[18],[28] $ 2,291,000 [5],[11],[15],[19] $ 1,601,000  
Percentage of Net Assets 0.16% [14],[15],[18],[28] 0.16% [5],[11],[15],[19] 0.13% 0.16% [14],[15],[18],[28]
Investment, Identifier [Axis]: Tamarack Intermediate, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 752,000 $ 808,000    
Fair Value $ (34,000) $ (36,000)    
Investment, Identifier [Axis]: Tamarack Intermediate, LLC 1        
Variable interest rate [18] 5.75% [14] 5.75% [4],[5],[19]   5.75% [14]
Interest Rate [18] 11.17% [14] 9.23% [4],[5],[7],[19],[22]   11.17% [14]
Par Amount [18] $ 5,431,000 [14] $ 5,473,000 [4],[5],[19]    
Cost [18] 5,345,000 [14] 5,375,000 [1],[4],[5],[19],[20]    
Fair Value [18] $ 5,189,000 [14] $ 5,232,000 [4],[5],[19]    
Percentage of Net Assets [18] 0.35% [14] 0.37% [4],[5],[19]   0.35% [14]
Investment, Identifier [Axis]: Tamarack Intermediate, LLC 2        
Variable interest rate [18] 5.75% [14],[15] 5.75% [4],[5],[12],[19]   5.75% [14],[15]
Interest Rate [18] 11.17% [14],[15] 9.23% [4],[5],[7],[12],[19],[22]   11.17% [14],[15]
Par Amount [18] $ 149,000 [14],[15] $ 91,000 [4],[5],[12],[19]    
Cost [18] 135,000 [14],[15] 76,000 [1],[4],[5],[12],[19],[20]    
Fair Value [18] $ 108,000 [14],[15] $ 52,000 [4],[5],[12],[19]    
Percentage of Net Assets 0.01% [14],[15],[18] 0.00% [5],[19]   0.01% [14],[15],[18]
Investment, Identifier [Axis]: Tank Holding Corp.        
Unused Fee Rate   0.38%    
Unfunded Commitment   $ 667,000    
Fair Value   $ (37,000)    
Investment, Identifier [Axis]: Tank Holding Corp. 1        
Variable interest rate [18] 5.75% [4],[13] 5.75% [16],[17],[19]   5.75% [4],[13]
Interest Rate [18] 11.19% [4],[13] 10.17% [7],[16],[17],[19]   11.19% [4],[13]
Par Amount [18] $ 15,753,000 [4],[13] $ 14,129,000 [16],[17],[19]    
Cost [18] 15,479,000 [4],[13] 13,875,000 [9],[16],[17],[19]    
Fair Value [18] $ 15,228,000 [4],[13] $ 13,352,000 [16],[17],[19]    
Percentage of Net Assets [18] 1.03% [4],[13] 0.96% [16],[17],[19]   1.03% [4],[13]
Unused Fee Rate 1.00%      
Unfunded Commitment $ 745,000      
Fair Value $ (26,000)      
Investment, Identifier [Axis]: Tank Holding Corp. 2        
Variable interest rate [18] 5.75% [2],[4] 4.75% [11],[12],[19]   5.75% [2],[4]
Interest Rate [18] 11.19% [2],[4] 12.25% [7],[11],[12],[19]   11.19% [2],[4]
Par Amount [11],[12],[18],[19]   $ 133,000    
Cost [18] $ (10,000) [2],[4] 119,000 [9],[11],[12],[19]    
Fair Value [18] $ (26,000) [2],[4] $ 89,000 [11],[12],[19]    
Percentage of Net Assets [11],[12],[18],[19]   0.01%    
Unused Fee Rate 0.38%      
Unfunded Commitment $ 173,000      
Fair Value $ (6,000)      
Investment, Identifier [Axis]: Tank Holding Corp. 3        
Variable interest rate [2],[18] 5.75%     5.75%
Interest Rate [2],[18] 11.19%     11.19%
Par Amount [2],[18] $ 627,000      
Cost [2],[18] 615,000      
Fair Value [2],[18] $ 600,000      
Percentage of Net Assets [2],[18] 0.04%     0.04%
Investment, Identifier [Axis]: Teasdale Foods, Inc. (Teasdale Latin Foods)        
Variable interest rate 7.25% [3],[14] 7.25% [3],[4] 6.25% [6] 7.25% [3],[14]
Interest rate, PIK 1.00% [3],[14] 1.00% [3],[4] 1.00% [6] 1.00% [3],[14]
Interest Rate 12.84% [3],[14] 12.29% [3],[4],[7] 8.25% [6],[8] 12.84% [3],[14]
Par Amount $ 10,837,000 [3],[14] $ 10,812,000 [3],[4] $ 11,148,000 [6]  
Cost 10,732,000 [3],[14] 10,675,000 [3],[4],[9] 10,965,000 [1],[6]  
Fair Value $ 9,740,000 [3],[14] $ 9,017,000 [3],[4] $ 10,029,000 [6]  
Percentage of Net Assets 0.66% [3],[14] 0.65% [3],[4] 0.84% [6] 0.66% [3],[14]
Investment, Identifier [Axis]: Thrive Buyer, Inc. (Thrive Networks)        
Par Amount [14],[23] $ 162,309,000      
Cost [14],[20],[23] 421,000      
Fair Value [14],[23] $ 766,000      
Percentage of Net Assets [14],[23] 0.05%     0.05%
Unused Fee Rate 0.38% 0.50%    
Unfunded Commitment $ 1,321,000 $ 1,717,000    
Fair Value $ (31,000) $ (42,000)    
Investment, Identifier [Axis]: Thrive Buyer, Inc. (Thrive Networks) 1        
Variable interest rate 6.50% [3],[13],[14] 6.00% [5],[16] 6.00% 6.50% [3],[13],[14]
Interest Rate 12.10% [3],[13],[14] 10.73% [5],[16] 7.00% 12.10% [3],[13],[14]
Par Amount $ 22,995,000 [3],[13],[14] $ 20,561,000 [5],[16] $ 20,770,000  
Cost 22,672,000 [3],[13],[14] 20,258,000 [5],[16] 20,402,000  
Fair Value $ 22,447,000 [3],[13],[14] $ 20,059,000 [5],[16] $ 20,402,000  
Percentage of Net Assets 1.52% [3],[13],[14] 1.44% [5],[16] 1.72% 1.52% [3],[13],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 6,442,000  
Fair Value     $ (123,000)  
Investment, Identifier [Axis]: Thrive Buyer, Inc. (Thrive Networks) 2        
Variable interest rate 6.00% [3],[14] 6.00% [5] 6.00% 6.00% [3],[14]
Interest Rate 11.60% [3],[14] 10.73% [5] 7.00% 11.60% [3],[14]
Par Amount $ 16,955,000 [3],[14] $ 17,085,000 [5] $ 8,031,000  
Cost 16,734,000 [3],[14] 16,820,000 [5] 7,763,000  
Fair Value $ 16,557,000 [3],[14] $ 16,668,000 [5] $ 7,763,000  
Percentage of Net Assets 1.12% [3],[14] 1.19% [5] 0.65% 1.12% [3],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,982,000  
Fair Value     $ (35,000)  
Investment, Identifier [Axis]: Thrive Buyer, Inc. (Thrive Networks) 3        
Variable interest rate 5.00% [14],[15] 5.00% [5],[11],[15] 6.00% 5.00% [14],[15]
Interest Rate 13.50% [14],[15] 12.50% [5],[11],[15] 7.00% 13.50% [14],[15]
Par Amount [15] $ 661,000 [14] $ 264,000 [5],[11]    
Cost 637,000 [14],[15] 236,000 [5],[11],[15] $ (35,000)  
Fair Value $ 614,000 [14],[15] $ 216,000 [5],[11],[15] $ (35,000)  
Percentage of Net Assets 0.04% [14],[15] 0.02% [5],[11],[15] 0.00% 0.04% [14],[15]
Investment, Identifier [Axis]: Tivity Health, Inc.        
Variable interest rate 6.00% [14],[18] 6.00%   6.00% [14],[18]
Interest Rate 11.39% [14],[18] 10.58%   11.39% [14],[18]
Par Amount $ 3,683,000 [14],[18] $ 3,711,000    
Cost 3,635,000 [14],[18] 3,658,000    
Fair Value $ 3,662,000 [14],[18] $ 3,592,000    
Percentage of Net Assets 0.25% [14],[18] 0.26%   0.25% [14],[18]
Investment, Identifier [Axis]: Total Portfolio Investments        
Cost [20] $ 3,158,601,000      
Fair Value $ 3,123,450,000      
Percentage of Net Assets 210.83%     210.83%
Investment, Identifier [Axis]: Trintech, Inc.        
Unused Fee Rate 0.50%      
Unfunded Commitment $ 2,092,000      
Fair Value $ (41,000)      
Investment, Identifier [Axis]: Trintech, Inc. 1        
Variable interest rate [3],[13],[14] 6.50%     6.50%
Interest Rate [3],[13],[14] 11.82%     11.82%
Par Amount [3],[13],[14] $ 34,086,000      
Cost [3],[13],[14] 33,419,000      
Fair Value [3],[13],[14] $ 33,419,000      
Percentage of Net Assets [3],[13],[14] 2.26%     2.26%
Investment, Identifier [Axis]: Trintech, Inc. 2        
Variable interest rate [3],[14],[15] 6.50%     6.50%
Interest Rate [3],[14],[15] 11.82%     11.82%
Par Amount [3],[14],[15] $ 837,000      
Cost [3],[14],[15] 780,000      
Fair Value [3],[14],[15] $ 780,000      
Percentage of Net Assets [3],[14],[15] 0.05%     0.05%
Investment, Identifier [Axis]: Triple Lift, Inc.        
Unused Fee Rate 0.50% 0.25% 0.50%  
Unfunded Commitment $ 2,467,000 $ 2,467,000 $ 4,000,000  
Fair Value $ (187,000) $ (127,000) $ (37,000)  
Investment, Identifier [Axis]: Triple Lift, Inc. 1        
Variable interest rate 5.75% [13],[14],[18] 5.50% [5],[16],[19] 5.75% 5.75% [13],[14],[18]
Interest Rate 11.30% [13],[14],[18] 10.12% [5],[16],[19] 6.50% 11.30% [13],[14],[18]
Par Amount $ 27,370,000 [13],[14],[18] $ 27,580,000 [5],[16],[19] $ 27,860,000  
Cost 26,978,000 [13],[14],[18] 27,136,000 [5],[16],[19] 27,345,000  
Fair Value $ 25,301,000 [13],[14],[18] $ 26,162,000 [5],[16],[19] $ 27,604,000  
Percentage of Net Assets 1.71% [13],[14],[18] 1.87% [5],[16],[19] 2.32% 1.71% [13],[14],[18]
Investment, Identifier [Axis]: Triple Lift, Inc. 2        
Variable interest rate 5.75% [14],[15],[18] 5.25% [5],[11],[15],[19] 5.75% 5.75% [14],[15],[18]
Interest Rate 11.30% [14],[15],[18] 9.58% [5],[11],[15],[19] 6.50% 11.30% [14],[15],[18]
Par Amount [15] $ 1,533,000 [14],[18] $ 1,533,000 [5],[11],[19]    
Cost 1,481,000 [14],[15],[18] 1,472,000 [5],[11],[15],[19] $ (72,000)  
Fair Value $ 1,231,000 [14],[15],[18] $ 1,328,000 [5],[11],[15],[19] $ (37,000)  
Percentage of Net Assets 0.08% [14],[15],[18] 0.10% [5],[11],[15],[19] 0.00% 0.08% [14],[15],[18]
Investment, Identifier [Axis]: Trunk Acquisition, Inc.        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 857,000 $ 857,000 $ 857,000  
Fair Value $ (19,000) $ (39,000) $ (8,000)  
Investment, Identifier [Axis]: Trunk Acquisition, Inc. 1        
Variable interest rate 5.75% [3],[14] 5.50% [3],[4],[5] 6.00% [6] 5.75% [3],[14]
Interest Rate 11.29% [3],[14],[27] 10.23% [3],[4],[5] 7.00% [6],[8] 11.29% [3],[14],[27]
Par Amount   $ 9,051,000 [3],[4],[5] $ 9,143,000 [6] € 8,983 [3],[14]
Cost   8,976,000 [3],[4],[5] 9,052,000 [1],[6] 8,919 [3],[14],[20]
Fair Value   $ 8,638,000 [3],[4],[5] $ 9,052,000 [6] € 8,786 [3],[14]
Percentage of Net Assets 0.59% [3],[14] 0.62% [3],[4],[5] 0.76% [6] 0.59% [3],[14]
Investment, Identifier [Axis]: Trunk Acquisition, Inc. 2        
Variable interest rate 5.75% [3],[14],[15] 5.50% [2],[3],[4],[5],[11] 6.00% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.29% [3],[14],[15],[27] 10.23% [2],[3],[4],[5],[11] 7.00% [6],[8],[10] 11.29% [3],[14],[15],[27]
Cost   $ (6,000) [2],[3],[4],[5],[11] $ (9,000) [1],[6],[10] € (5) [3],[14],[15],[20]
Fair Value   $ (39,000) [2],[3],[4],[5],[11] $ (9,000) [6],[10] € (19) [3],[14],[15]
Percentage of Net Assets   0.00% [5],[11] 0.00% [6],[10]  
Investment, Identifier [Axis]: Turbo Buyer, Inc. 1        
Variable interest rate 6.00% [3],[4] 6.00% [3],[4],[5] 6.00% [6] 6.00% [3],[4]
Interest Rate 11.40% [3],[4] 11.15% [3],[4],[5],[7] 7.00% [6],[22] 11.40% [3],[4]
Par Amount $ 37,652,000 [3],[4] $ 37,940,000 [3],[4],[5] $ 38,325,000 [6]  
Cost 37,251,000 [3],[4] 37,419,000 [3],[4],[5],[9] 37,645,000 [1],[6]  
Fair Value $ 37,184,000 [3],[4] $ 36,574,000 [3],[4],[5] $ 37,580,000 [6]  
Percentage of Net Assets 2.51% [3],[4] 2.62% [3],[4],[5] 3.16% [6] 2.51% [3],[4]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 1,610,000  
Fair Value     $ (31,000)  
Investment, Identifier [Axis]: Turbo Buyer, Inc. 2        
Variable interest rate 6.00% [3],[4] 6.00% [3],[4],[5] 6.00% [6],[10] 6.00% [3],[4]
Interest Rate 11.40% [3],[4] 11.15% [3],[4],[5],[7] 7.00% [6],[10],[22] 11.40% [3],[4]
Par Amount $ 37,835,000 [3],[4] $ 38,123,000 [3],[4],[5] $ 36,890,000 [6],[10]  
Cost 37,352,000 [3],[4] 37,494,000 [3],[4],[5],[9] 36,086,000 [1],[6],[10]  
Fair Value $ 37,365,000 [3],[4] $ 36,751,000 [3],[4],[5] $ 36,142,000 [6],[10]  
Percentage of Net Assets 2.52% [3],[4] 2.63% [3],[4],[5] 3.04% [6],[10] 2.52% [3],[4]
Investment, Identifier [Axis]: Two Six Labs, LLC 1        
Variable interest rate 5.50% [4],[18] 5.50% [4],[18] 5.50% [6],[19] 5.50% [4],[18]
Interest Rate 10.89% [4],[7],[18] 10.08% [4],[7],[18] 6.25% [6],[19],[22] 10.89% [4],[7],[18]
Par Amount $ 10,876,000 [4],[18] $ 10,959,000 [4],[18] $ 11,070,000 [6],[19]  
Cost 10,723,000 [4],[18],[20] 10,782,000 [4],[18],[20] 10,859,000 [1],[6],[19]  
Fair Value $ 10,764,000 [4],[18] $ 10,694,000 [4],[18] $ 10,960,000 [6],[19]  
Percentage of Net Assets 0.73% [4],[18] 0.77% [4],[18] 0.92% [6],[19] 0.73% [4],[18]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 2,134,000 $ 2,134,000 $ 4,268,000  
Fair Value $ (22,000) $ (52,000) $ (43,000)  
Investment, Identifier [Axis]: Two Six Labs, LLC 2        
Variable interest rate 5.50% [2],[4],[18] 5.50% [4],[12],[18] 5.50% [6],[10],[19] 5.50% [2],[4],[18]
Interest Rate 10.89% [2],[4],[7],[18] 10.08% [4],[7],[12],[18] 6.25% [6],[10],[19],[22] 10.89% [2],[4],[7],[18]
Par Amount [4],[18] $ 2,102,000 [2] $ 2,118,000 [12]    
Cost 2,058,000 [2],[4],[18],[20] 2,066,000 [4],[12],[18],[20] $ (40,000) [1],[6],[10],[19]  
Fair Value $ 2,059,000 [2],[4],[18] $ 2,015,000 [4],[12],[18] $ (43,000) [6],[10],[19]  
Percentage of Net Assets 0.14% [2],[4],[18] 0.14% [4],[12],[18] 0.00% [6],[10],[19] 0.14% [2],[4],[18]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 2,134,000 $ 2,134,000 $ 2,134,000  
Fair Value $ (22,000) $ (52,000) $ (21,000)  
Investment, Identifier [Axis]: Two Six Labs, LLC 3        
Variable interest rate 5.50% [2],[4],[18] 5.50% [4],[12],[18] 5.50% [6],[10],[19] 5.50% [2],[4],[18]
Interest Rate 10.89% [2],[4],[7],[18] 10.08% [4],[7],[12],[18] 6.25% [6],[10],[19],[22] 10.89% [2],[4],[7],[18]
Cost $ (28,000) [2],[4],[18],[20] $ (33,000) [4],[12],[18],[20] $ (40,000) [1],[6],[10],[19]  
Fair Value $ (22,000) [2],[4],[18] $ (52,000) [4],[12],[18] $ (21,000) [6],[10],[19]  
Percentage of Net Assets   0.00% 0.00% [6],[10],[19]  
Investment, Identifier [Axis]: US Infra Svcs Buyer, LLC 1        
Variable interest rate 6.50% [3],[13],[14] 6.75% [3],[4],[5],[16],[17] 6.50% [6],[21] 6.50% [3],[13],[14]
Interest rate, PIK [3] 0.25% [13],[14] 0.25% [4],[5],[16],[17]   0.25% [13],[14]
Interest Rate 12.34% [3],[13],[14] 11.67% [3],[4],[5],[7],[16],[17],[22] 7.50% [6],[8],[21] 12.34% [3],[13],[14]
Par Amount $ 14,958,000 [3],[13],[14] $ 16,193,000 [3],[4],[5],[16],[17] $ 16,991,000 [6],[21]  
Cost 14,813,000 [3],[13],[14] 15,998,000 [1],[3],[4],[5],[16],[17],[20] 16,734,000 [1],[6],[21]  
Fair Value $ 14,311,000 [3],[13],[14] $ 15,427,000 [3],[4],[5],[16],[17] $ 16,903,000 [6],[21]  
Percentage of Net Assets 0.97% [3],[13],[14] 1.10% [3],[4],[5],[16],[17] 1.42% [6],[21] 0.97% [3],[13],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 8,085,000  
Fair Value     $ (42,000)  
Investment, Identifier [Axis]: US Infra Svcs Buyer, LLC 2        
Variable interest rate 6.50% [3],[13],[14] 6.75% [3],[4],[5],[16],[17] 6.50% [6],[10] 6.50% [3],[13],[14]
Interest rate, PIK [3] 0.25% [13],[14] 0.25% [4],[5],[16],[17]   0.25% [13],[14]
Interest Rate 12.34% [3],[13],[14] 11.67% [3],[4],[5],[7],[16],[17],[22] 7.50% [6],[8],[10] 12.34% [3],[13],[14]
Par Amount $ 2,111,000 [3],[13],[14] $ 2,285,000 [3],[4],[5],[16],[17] $ 2,398,000 [6],[10]  
Cost 2,091,000 [3],[13],[14] 2,259,000 [1],[3],[4],[5],[16],[17],[20] 2,246,000 [1],[6],[10]  
Fair Value $ 2,019,000 [3],[13],[14] $ 2,177,000 [3],[4],[5],[16],[17] $ 2,343,000 [6],[10]  
Percentage of Net Assets 0.14% [3],[13],[14] 0.16% [3],[4],[5],[16],[17] 0.20% [6],[10] 0.14% [3],[13],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 225,000  
Fair Value     $ (1,000)  
Investment, Identifier [Axis]: US Infra Svcs Buyer, LLC 3        
Variable interest rate 6.50% [3],[14] 6.75% [3],[4],[5] 6.50% [6],[10] 6.50% [3],[14]
Interest rate, PIK [3] 0.25% [14] 0.25% [4],[5]   0.25% [14]
Interest Rate 12.34% [3],[14] 11.67% [3],[4],[5],[7],[22] 7.50% [6],[8],[10] 12.34% [3],[14]
Par Amount $ 2,250,000 [3],[14] $ 2,250,000 [3],[4],[5] $ 2,025,000 [6],[10]  
Cost 2,231,000 [3],[14] 2,225,000 [1],[3],[4],[5],[20] 1,993,000 [1],[6],[10]  
Fair Value $ 2,153,000 [3],[14] $ 2,144,000 [3],[4],[5] $ 2,013,000 [6],[10]  
Percentage of Net Assets 0.15% [3],[14] 0.15% [3],[4],[5] 0.17% [6],[10] 0.15% [3],[14]
Investment, Identifier [Axis]: United Flow Technologies Intermediate Holdco II, LLC 1        
Variable interest rate 5.75% [3],[14] 5.75% [3],[4],[5] 5.75% [6] 5.75% [3],[14]
Interest Rate 11.17% [3],[14] 10.17% [3],[4],[5],[7],[22] 6.75% [6],[8] 11.17% [3],[14]
Par Amount $ 16,844,000 [3],[14] $ 16,972,000 [3],[4],[5] $ 17,100,000 [6]  
Cost 16,596,000 [3],[14] 16,687,000 [1],[3],[4],[5],[20] 16,766,000 [1],[6]  
Fair Value $ 16,572,000 [3],[14] $ 16,457,000 [3],[4],[5] $ 16,766,000 [6]  
Percentage of Net Assets 1.12% [3],[14] 1.18% [3],[4],[5] 1.41% [6] 1.12% [3],[14]
Unused Fee Rate 1.00% 1.00% 1.00%  
Unfunded Commitment $ 32,000 $ 164,000 $ 7,500,000  
Fair Value $ (1,000) $ (5,000) $ (73,000)  
Investment, Identifier [Axis]: United Flow Technologies Intermediate Holdco II, LLC 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[4],[5],[12] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.17% [3],[14],[15] 10.17% [3],[4],[5],[7],[12],[22] 6.75% [6],[8],[10] 11.17% [3],[14],[15]
Par Amount $ 19,701,000 [3],[14],[15] $ 9,668,000 [3],[4],[5],[12] $ 2,400,000 [6],[10]  
Cost 19,383,000 [3],[14],[15] 9,409,000 [1],[3],[4],[5],[12],[20] 2,280,000 [1],[6],[10]  
Fair Value $ 19,384,000 [3],[14],[15] $ 9,067,000 [3],[4],[5],[12] $ 2,280,000 [6],[10]  
Percentage of Net Assets 1.31% [3],[14],[15] 0.65% [3],[4],[5],[12] 0.19% [6],[10] 1.31% [3],[14],[15]
Unused Fee Rate 0.50% 1.00% 0.50%  
Unfunded Commitment $ 1,950,000 $ 10,000,000 $ 3,000,000  
Fair Value $ (31,000) $ (303,000) $ (58,000)  
Investment, Identifier [Axis]: United Flow Technologies Intermediate Holdco II, LLC 3        
Variable interest rate 5.75% [3],[14],[15] 5.75% [3],[4],[5],[12] 5.75% [6],[10] 5.75% [3],[14],[15]
Interest Rate 11.17% [3],[14],[15] 10.17% [3],[4],[5],[7],[12],[22] 6.75% [6],[8],[10] 11.17% [3],[14],[15]
Par Amount [3],[14],[15] $ 1,050,000      
Cost 1,013,000 [3],[14],[15] $ (46,000) [1],[3],[4],[5],[12],[20] $ (58,000) [1],[6],[10]  
Fair Value $ 1,002,000 [3],[14],[15] $ (91,000) [3],[4],[5],[12] $ (58,000) [6],[10]  
Percentage of Net Assets 0.07% [3],[14],[15] (0.01%) [3],[4],[5],[12] 0.00% [6],[10] 0.07% [3],[14],[15]
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 3,000,000    
Fair Value   $ (91,000)    
Investment, Identifier [Axis]: UpStack, Inc. 1        
Variable interest rate 6.25% [3],[14] 5.75% [5]   6.25% [3],[14]
Interest Rate 11.65% [3],[14] 10.32% [5]   11.65% [3],[14]
Par Amount $ 8,271,000 [3],[14] $ 9,737,000 [5]    
Cost 8,128,000 [3],[14] 9,539,000 [5]    
Fair Value $ 8,064,000 [3],[14] $ 9,444,000 [5]    
Percentage of Net Assets 0.54% [3],[14] 0.68% [5]   0.54% [3],[14]
Unused Fee Rate 1.00% 1.00%    
Unfunded Commitment $ 6,945,000 $ 1,050,000    
Fair Value $ (106,000) $ (32,000)    
Investment, Identifier [Axis]: UpStack, Inc. 2        
Variable interest rate [15] 6.25% [3],[14] 5.75% [5],[11]   6.25% [3],[14]
Interest Rate [15] 11.65% [3],[14] 10.32% [5],[11]   11.65% [3],[14]
Par Amount [15] $ 6,034,000 [3],[14] $ 3,292,000 [5],[11]    
Cost [15] 5,811,000 [3],[14] 3,205,000 [5],[11]    
Fair Value [15] $ 5,801,000 [3],[14] $ 3,162,000 [5],[11]    
Percentage of Net Assets [15] 0.39% [3],[14] 0.23% [5],[11]   0.39% [3],[14]
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 875,000 $ 875,000    
Fair Value $ (22,000) $ (26,000)    
Investment, Identifier [Axis]: UpStack, Inc. 3        
Variable interest rate [15] 6.25% [3],[14] 5.75% [5],[11]   6.25% [3],[14]
Interest Rate [15] 11.65% [3],[14] 10.32% [5],[11]   11.65% [3],[14]
Cost [15] $ (16,000) [3],[14] $ (19,000) [5],[11]    
Fair Value [15] $ (22,000) [3],[14] $ (26,000) [5],[11]    
Percentage of Net Assets [5],[11]   0.00%    
Investment, Identifier [Axis]: Upstack Holdco, Inc. 1        
Variable interest rate     6.00%  
Interest Rate     7.00%  
Par Amount     $ 9,844,000  
Cost     9,609,000  
Fair Value     $ 9,635,000  
Percentage of Net Assets     0.81%  
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 1,050,000  
Fair Value     $ (22,000)  
Investment, Identifier [Axis]: Upstack Holdco, Inc. 2        
Variable interest rate     6.00%  
Interest Rate     7.00%  
Par Amount     $ 3,325,000  
Cost     3,223,000  
Fair Value     $ 3,232,000  
Percentage of Net Assets     0.27%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 875,000  
Fair Value     $ (18,000)  
Investment, Identifier [Axis]: Upstack Holdco, Inc. 3        
Variable interest rate     6.00%  
Interest Rate     7.00%  
Cost     $ (23,000)  
Fair Value     $ (19,000)  
Percentage of Net Assets     0.00%  
Investment, Identifier [Axis]: User Zoom Technologies, Inc.        
Variable interest rate [18] 7.00% [14] 5.75% [4],[5],[19]   7.00% [14]
Interest Rate [18] 11.92% [14],[27] 9.35% [4],[5],[19]   11.92% [14],[27]
Par Amount [18]   $ 38,689,000 [4],[5],[19]   € 38,689 [14]
Cost [18]   37,967,000 [4],[5],[19]   38,028 [14],[20]
Fair Value [18]   $ 37,965,000 [4],[5],[19]   € 38,078 [14]
Percentage of Net Assets [18] 2.57% [14] 2.72% [4],[5],[19]   2.57% [14]
Investment, Identifier [Axis]: V Global Holdings, LLC        
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 449,000 $ 672,000    
Fair Value $ (9,000) $ (34,000)    
Investment, Identifier [Axis]: V Global Holdings, LLC 1        
Variable interest rate [4] 5.75% [13],[18] 5.75% [5],[16],[17],[19]   5.75% [13],[18]
Interest Rate [4] 11.43% [13],[18] 8.99% [5],[7],[16],[17],[19]   11.43% [13],[18]
Par Amount [4] $ 4,866,000 [13],[18] $ 4,903,000 [5],[16],[17],[19]    
Cost [4] 4,789,000 [13],[18] 4,814,000 [5],[9],[16],[17],[19]    
Fair Value [4] $ 4,771,000 [13],[18] $ 4,659,000 [5],[16],[17],[19]    
Percentage of Net Assets [4] 0.32% [13],[18] 0.33% [5],[16],[17],[19]   0.32% [13],[18]
Investment, Identifier [Axis]: V Global Holdings, LLC 2        
Variable interest rate [4],[18] 5.75% [2] 5.75% [5],[11],[12],[19]   5.75% [2]
Interest Rate [4],[18] 11.43% [2] 8.99% [5],[7],[11],[12],[19]   11.43% [2]
Par Amount [2],[4],[18] $ 223,000      
Cost [4],[18] 214,000 [2] $ (11,000) [5],[9],[11],[12],[19]    
Fair Value [4],[18] $ 210,000 [2] $ (34,000) [5],[11],[12],[19]    
Percentage of Net Assets 0.01% [2],[4],[18] 0.00% [5],[11],[19]   0.01% [2],[4],[18]
Investment, Identifier [Axis]: VRC Companies LLC 6        
Unused Fee Rate   0.75%    
Unfunded Commitment   $ 6,059,000    
Fair Value   $ (212,000)    
Investment, Identifier [Axis]: VRC Companies, LLC 1        
Variable interest rate 5.75% [3],[13],[14] 5.75% [4],[5],[18],[19] 5.50% [6],[19],[21] 5.75% [3],[13],[14]
Interest Rate 11.13% [3],[13],[14] 8.52% [4],[5],[7],[18],[19],[22] 6.25% [6],[8],[19],[21] 11.13% [3],[13],[14]
Par Amount $ 64,103,000 [3],[13],[14] $ 7,540,000 [4],[5],[18],[19] $ 49,335,000 [6],[19],[21]  
Cost 63,435,000 [3],[13],[14] 7,435,000 [1],[4],[5],[18],[19],[20] 48,644,000 [1],[6],[19],[21]  
Fair Value $ 63,821,000 [3],[13],[14] $ 7,276,000 [4],[5],[18],[19] $ 48,921,000 [6],[19],[21]  
Percentage of Net Assets 4.31% [3],[13],[14] 0.52% [4],[5],[18],[19] 4.12% [6],[19],[21] 4.31% [3],[13],[14]
Unused Fee Rate 0.75% 0.75% 0.75%  
Unfunded Commitment $ 515,000 $ 6,059,000 $ 5,000,000  
Fair Value $ (2,000) $ (212,000) $ (42,000)  
Investment, Identifier [Axis]: VRC Companies, LLC 2        
Variable interest rate 5.75% [3],[14],[15] 5.75% [4],[5],[12],[18],[19] 5.50% [6],[10],[19],[21] 5.75% [3],[14],[15]
Interest Rate 11.13% [3],[14],[15] 8.52% [4],[5],[7],[12],[18],[19],[22] 6.25% [6],[8],[10],[19],[21] 11.13% [3],[14],[15]
Par Amount $ 8,569,000 [3],[14],[15] $ 3,074,000 [4],[5],[12],[18],[19] $ 3,263,000 [6],[10],[19],[21]  
Cost 8,466,000 [3],[14],[15] 2,950,000 [1],[4],[5],[12],[18],[19],[20] 3,148,000 [1],[6],[10],[19],[21]  
Fair Value $ 8,529,000 [3],[14],[15] $ 2,754,000 [4],[5],[12],[18],[19] $ 3,193,000 [6],[10],[19],[21]  
Percentage of Net Assets 0.58% [3],[14],[15] 0.20% [4],[5],[12],[18],[19] 0.27% [6],[10],[19],[21] 0.58% [3],[14],[15]
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,653,000 $ 1,653,000 $ 1,653,000  
Fair Value $ (7,000) $ (58,000) $ (14,000)  
Investment, Identifier [Axis]: VRC Companies, LLC 3        
Variable interest rate 5.50% [3],[14],[15] 5.50% [4],[5],[16],[17],[18],[19] 5.50% [6],[10],[19] 5.50% [3],[14],[15]
Interest Rate 10.83% [3],[14],[15] 10.65% [4],[5],[7],[16],[17],[18],[19],[22] 6.25% [6],[8],[10],[19] 10.83% [3],[14],[15]
Par Amount [4],[5],[16],[17],[18],[19]   $ 48,840,000    
Cost $ (16,000) [3],[14],[15] 48,260,000 [1],[4],[5],[16],[17],[18],[19],[20] $ (23,000) [1],[6],[10],[19]  
Fair Value $ (7,000) [3],[14],[15] $ 47,130,000 [4],[5],[16],[17],[18],[19] $ (14,000) [6],[10],[19]  
Percentage of Net Assets [19]   3.37% [4],[5],[16],[17],[18] 0.00% [6],[10]  
Investment, Identifier [Axis]: VRC Companies, LLC 4        
Variable interest rate [4],[5],[12],[16],[17],[18],[19]   5.50%    
Interest Rate [4],[5],[7],[12],[16],[17],[18],[19],[22]   10.22%    
Par Amount [4],[5],[12],[16],[17],[18],[19]   $ 8,214,000    
Cost [1],[4],[5],[12],[16],[17],[18],[19],[20]   8,119,000    
Fair Value [4],[5],[12],[16],[17],[18],[19]   $ 7,927,000    
Percentage of Net Assets [4],[5],[12],[16],[17],[18],[19]   0.57%    
Investment, Identifier [Axis]: VRC Companies, LLC 5        
Variable interest rate [4],[5],[12],[18],[19]   5.50%    
Interest Rate [4],[5],[7],[12],[18],[19],[22]   10.22%    
Cost [1],[4],[5],[12],[18],[19],[20]   $ (19,000)    
Fair Value [4],[5],[12],[18],[19]   $ (58,000)    
Percentage of Net Assets [5],[19]   0.00%    
Investment, Identifier [Axis]: VRC Companies, LLC 7        
Unused Fee Rate   0.50%    
Unfunded Commitment   $ 1,653,000    
Fair Value   $ (58,000)    
Investment, Identifier [Axis]: Valcourt Holdings II, LLC        
Unused Fee Rate   1.00% 1.00%  
Unfunded Commitment   $ 1,121,000 $ 4,378,000  
Fair Value   $ (13,000)    
Investment, Identifier [Axis]: Valcourt Holdings II, LLC 1        
Variable interest rate 5.25% [3],[13],[14] 5.25% [3],[4],[5] 5.50% [6],[21] 5.25% [3],[13],[14]
Interest Rate 10.79% [3],[13],[14] 9.98% [3],[4],[5],[7],[22] 6.50% [6],[8],[21] 10.79% [3],[13],[14]
Par Amount $ 34,805,000 [3],[13],[14] $ 25,145,000 [3],[4],[5] $ 35,431,000 [6],[21]  
Cost 34,383,000 [3],[13],[14] 24,785,000 [1],[3],[4],[5],[20] 34,816,000 [1],[6],[21]  
Fair Value $ 34,597,000 [3],[13],[14] $ 24,850,000 [3],[4],[5] $ 35,431,000 [6],[21]  
Percentage of Net Assets 2.34% [3],[13],[14] 1.78% [3],[4],[5] 2.98% [6],[21] 2.34% [3],[13],[14]
Investment, Identifier [Axis]: Valcourt Holdings II, LLC 2        
Variable interest rate 5.25% [3],[14] 5.25% [3],[4],[5],[16],[17] 5.50% [6],[10] 5.25% [3],[14]
Interest Rate 10.79% [3],[14] 9.98% [3],[4],[5],[7],[16],[17],[22] 6.50% [6],[8],[10] 10.79% [3],[14]
Par Amount $ 3,067,000 [3],[14] $ 9,929,000 [3],[4],[5],[16],[17] $ 2,521,000 [6],[10]  
Cost 3,031,000 [3],[14] 9,783,000 [1],[3],[4],[5],[16],[17],[20] 2,405,000 [1],[6],[10]  
Fair Value $ 3,048,000 [3],[14] $ 9,813,000 [3],[4],[5],[16],[17] $ 2,521,000 [6],[10]  
Percentage of Net Assets 0.21% [3],[14] 0.70% [3],[4],[5],[16],[17] 0.21% [6],[10] 0.21% [3],[14]
Investment, Identifier [Axis]: Valcourt Holdings II, LLC 3        
Variable interest rate [3],[4],[5],[12]   5.25%    
Interest Rate [3],[4],[5],[7],[12],[22]   9.98%    
Par Amount [3],[4],[5],[12]   $ 5,738,000    
Cost [1],[3],[4],[5],[12],[20]   5,643,000    
Fair Value [3],[4],[5],[12]   $ 5,658,000    
Percentage of Net Assets [3],[4],[5],[12]   0.40%    
Investment, Identifier [Axis]: Vardiman Black Holdings, LLC        
Unused Fee Rate   1.25%    
Unfunded Commitment   $ 142,000    
Fair Value   $ (8,000)    
Investment, Identifier [Axis]: Vardiman Black Holdings, LLC 1        
Variable interest rate 7.00% [14],[26],[33] 7.00% [36]   7.00% [14],[26],[33]
Interest Rate 12.40% [14],[26],[33] 11.22% [36]   12.40% [14],[26],[33]
Par Amount $ 3,386,000 [14],[26],[33] $ 3,412,000 [36]    
Cost 3,360,000 [14],[26],[33] 3,382,000 [36]    
Fair Value $ 2,860,000 [14],[26],[33] $ 3,227,000 [36]    
Percentage of Net Assets 0.19% [14],[26],[33] 0.23% [36]   0.19% [14],[26],[33]
Investment, Identifier [Axis]: Vardiman Black Holdings, LLC 2        
Variable interest rate 7.00% [14],[26],[33] 7.00% [15],[36]   7.00% [14],[26],[33]
Interest Rate 12.40% [14],[26],[33] 11.22% [15],[36]   12.40% [14],[26],[33]
Par Amount $ 4,020,000 [14],[26],[33] $ 3,907,000 [15],[36]    
Cost 3,988,000 [14],[26],[33] 3,871,000 [15],[36]    
Fair Value $ 3,395,000 [14],[26],[33] $ 3,687,000 [15],[36]    
Percentage of Net Assets 0.23% [14],[26],[33] 0.26% [15],[36]   0.23% [14],[26],[33]
Investment, Identifier [Axis]: Vehlo Purchaser, LLC 1        
Variable interest rate [6],[19]     5.00%  
Interest Rate [6],[19],[22]     5.75%  
Par Amount [6],[19]     $ 27,154,000  
Cost [1],[6],[19]     26,638,000  
Fair Value [6],[19]     $ 26,725,000  
Percentage of Net Assets [6],[19]     2.25%  
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 11,569,000  
Fair Value     $ (183,000)  
Investment, Identifier [Axis]: Vehlo Purchaser, LLC 2        
Variable interest rate [6],[10],[19]     5.00%  
Interest Rate [6],[8],[10],[19]     5.75%  
Par Amount [6],[10],[19]     $ 7,875,000  
Cost [1],[6],[10],[19]     7,614,000  
Fair Value [6],[10],[19]     $ 7,568,000  
Percentage of Net Assets [6],[10],[19]     0.64%  
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 4,666,000  
Fair Value     $ (74,000)  
Investment, Identifier [Axis]: Vehlo Purchaser, LLC 3        
Variable interest rate [6],[10],[19]     5.00%  
Interest Rate [6],[8],[10],[19]     5.75%  
Par Amount [6],[10],[19]     $ 1,167,000  
Cost [1],[6],[10],[19]     1,057,000  
Fair Value [6],[10],[19]     $ 1,074,000  
Percentage of Net Assets [6],[10],[19]     0.09%  
Investment, Identifier [Axis]: Vermont Aus Pty Ltd        
Variable interest rate 5.65% [14],[18],[28] 5.65% [29]   5.65% [14],[18],[28]
Interest Rate 11.04% [14],[18],[28] 10.23% [29]   11.04% [14],[18],[28]
Par Amount $ 8,373,000 [14],[18],[28] $ 8,436,000 [29]    
Cost 8,203,000 [14],[18],[28] 8,244,000 [29]    
Fair Value $ 8,182,000 [14],[18],[28] $ 7,927,000 [29]    
Percentage of Net Assets 0.55% [14],[18],[28] 0.57% [29]   0.55% [14],[18],[28]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC        
Variable interest rate [5],[16]   4.50%    
Interest Rate [5],[16]   8.88%    
Par Amount [5],[16]   $ 2,715,000    
Cost [5],[16]   2,696,000    
Fair Value [5],[16]   $ 2,679,000    
Percentage of Net Assets [5],[16]   0.19%    
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 447,000 $ 268,000    
Fair Value   $ (4,000)    
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 1        
Variable interest rate 4.50% [3],[13],[14] 4.50% 4.50% [6],[21] 4.50% [3],[13],[14]
Interest Rate 9.95% [3],[13],[14] 8.88% 5.50% [6],[8],[21] 9.95% [3],[13],[14]
Par Amount $ 2,694,000 [3],[13],[14] $ 2,715,000 $ 2,735,000 [6],[21]  
Cost 2,679,000 [3],[13],[14] 2,696,000 2,713,000 [1],[6],[21]  
Fair Value $ 2,694,000 [3],[13],[14] $ 2,679,000 $ 2,735,000 [6],[21]  
Percentage of Net Assets 0.18% [3],[13],[14] 0.19% 0.23% [6],[21] 0.18% [3],[13],[14]
Unused Fee Rate     1.00%  
Unfunded Commitment     $ 309,000  
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 2        
Variable interest rate 4.50% [3],[14] 4.50% [5],[6] 4.50% [6],[10] 4.50% [3],[14]
Interest Rate 9.95% [3],[14] 8.88% [5],[22] 5.50% [6],[8],[10] 9.95% [3],[14]
Par Amount $ 1,755,000 [3],[14] $ 1,769,000 $ 1,472,000 [6],[10]  
Par Amount, Shares (in shares) | shares [5]   1,769    
Cost 1,746,000 [3],[14] $ 1,757,000 [1],[5] 1,457,000 [1],[6],[10]  
Fair Value $ 1,755,000 [3],[14] $ 1,746,000 [5] $ 1,472,000 [6],[10]  
Percentage of Net Assets 0.12% [3],[14] 0.12% [5] 0.12% [6],[10] 0.12% [3],[14]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 427,000  
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC 3        
Variable interest rate 4.50% [3],[14],[15] 3.50% [5],[11],[15] 3.50% [6],[10] 4.50% [3],[14],[15]
Interest Rate 9.95% [3],[14],[15] 11.00% [5],[11],[15],[22] 6.75% [6],[8],[10] 9.95% [3],[14],[15]
Par Amount   $ 179,000 [15] $ 20,000 [6],[10]  
Par Amount, Shares (in shares) | shares [5],[11]   179    
Cost $ (2,000) [3],[14],[15] $ 176,000 [1],[5],[11],[15] 16,000 [1],[6],[10]  
Fair Value   $ 173,000 [5],[11],[15] $ 20,000 [6],[10]  
Percentage of Net Assets   0.01% [5],[11],[15] 0.00% [6],[10]  
Investment, Identifier [Axis]: World Insurance Associates, LLC        
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 1,269,000 $ 444,000 $ 1,173,000  
Fair Value $ (63,000) $ (14,000) $ (23,000)  
Investment, Identifier [Axis]: World Insurance Associates, LLC 1        
Variable interest rate 6.75% [3],[13],[14] 5.75% [5],[16] 5.75% 6.75% [3],[13],[14]
Interest Rate 12.14% [3],[13],[14] 10.33% [5],[16] 6.75% 12.14% [3],[13],[14]
Par Amount $ 34,076,000 [3],[13],[14] $ 33,331,000 [5],[16] $ 33,658,000  
Cost 33,192,000 [3],[13],[14] 32,499,000 [5],[16] 32,601,000  
Fair Value $ 32,394,000 [3],[13],[14] $ 32,288,000 [5],[16] $ 32,996,000  
Percentage of Net Assets 2.19% [3],[13],[14] 2.31% [5],[16] 2.78% 2.19% [3],[13],[14]
Investment, Identifier [Axis]: World Insurance Associates, LLC 2        
Variable interest rate 5.75% [3],[13],[14] 5.75% [5],[16] 5.75% 5.75% [3],[13],[14]
Interest Rate 11.15% [3],[13],[14] 10.33% [5],[16] 6.75% 11.15% [3],[13],[14]
Par Amount $ 30,934,000 [3],[13],[14] $ 31,170,000 [5],[16] $ 31,487,000  
Cost 30,285,000 [3],[13],[14] 30,528,000 [5],[16] 30,671,000  
Fair Value $ 29,386,000 [3],[13],[14] $ 30,194,000 [5],[16] $ 30,868,000  
Percentage of Net Assets 1.98% [3],[13],[14] 2.16% [5],[16] 2.60% 1.98% [3],[13],[14]
Investment, Identifier [Axis]: World Insurance Associates, LLC 3        
Variable interest rate 5.75% [3],[14],[15] 5.75% [5],[11],[15] 5.75% 5.75% [3],[14],[15]
Interest Rate 11.15% [3],[14],[15] 10.33% [5],[11],[15] 6.75% 11.15% [3],[14],[15]
Par Amount   $ 825,000 [5],[11],[15] $ 95,000  
Cost $ (13,000) [3],[14],[15] 808,000 [5],[11],[15] 74,000  
Fair Value $ (64,000) [3],[14],[15] $ 785,000 [5],[11],[15] $ 70,000  
Percentage of Net Assets   0.06% [5],[11],[15] 0.01%  
Investment, Identifier [Axis]: Zarya Intermediate, LLC        
Variable interest rate [6],[21]     6.50%  
Interest Rate [6],[21]     7.50%  
Par Amount [6],[21]     $ 24,500,000  
Cost [6],[21]     24,043,000  
Fair Value [6],[21]     $ 24,500,000  
Percentage of Net Assets [6],[21]     2.06%  
Unused Fee Rate 0.50% 0.50%    
Unfunded Commitment $ 2,085,000 $ 3,649,000    
Fair Value   $ (7,000)    
Investment, Identifier [Axis]: Zarya Intermediate, LLC 1        
Variable interest rate 6.50% [3],[14],[28] 6.50% [3],[4],[5],[29],[30] 6.50% [6],[10] 6.50% [3],[14],[28]
Interest Rate 11.92% [3],[14],[27],[28] 10.90% [3],[4],[5],[29],[30] 7.50% [6],[10] 11.92% [3],[14],[27],[28]
Par Amount $ 35,408,000 [3],[14],[28] $ 35,408,000 [3],[4],[5],[29],[30] $ 19,250,000 [6],[10]  
Cost 35,408,000 [3],[14],[20],[28] 35,408,000 [3],[4],[5],[20],[29],[30] 18,884,000 [6],[10]  
Fair Value $ 35,408,000 [3],[14],[28] $ 35,344,000 [3],[4],[5],[29],[30] $ 19,250,000 [6],[10]  
Percentage of Net Assets 2.39% [3],[14],[28] 2.53% [3],[4],[5],[29],[30] 1.62% [6],[10] 2.39% [3],[14],[28]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 1,983,000  
Investment, Identifier [Axis]: Zarya Intermediate, LLC 2        
Variable interest rate 6.50% [3],[14],[15],[28],[30] 6.50% [3],[4],[5],[11],[12],[29],[30] 6.50% [6],[10] 6.50% [3],[14],[15],[28],[30]
Interest Rate 11.92% [3],[14],[15],[27],[28],[30] 10.90% [3],[4],[5],[11],[12],[29],[30] 7.50% [6],[10] 11.92% [3],[14],[15],[27],[28],[30]
Par Amount [3],[14],[15],[28],[30] $ 1,564,000      
Cost 1,564,000 [3],[14],[15],[20],[28],[30]   $ (86,000) [6],[10]  
Fair Value [3],[30] $ 1,564,000 [14],[15],[28] $ (7,000) [4],[5],[11],[12],[29]    
Percentage of Net Assets 0.11% [3],[14],[15],[28],[30] 0.00% [5],[11],[29] 0.00% [6],[10] 0.11% [3],[14],[15],[28],[30]
Unused Fee Rate     0.50%  
Unfunded Commitment     $ 2,683,000  
Investment, Identifier [Axis]: iCIMS, Inc.        
Variable interest rate   7.25%    
Interest rate, PIK   3.875%    
Interest Rate   11.52%    
Par Amount   $ 6,568,000    
Cost   6,455,000    
Fair Value   $ 6,455,000    
Percentage of Net Assets   0.46%    
Investment, Identifier [Axis]: iCIMS, Inc. 1        
Variable interest rate [14],[18] 6.75%     6.75%
Interest Rate [14],[18] 12.14%     12.14%
Par Amount [14],[18] $ 7,059,000      
Cost [14],[18] 6,955,000      
Fair Value [14],[18] $ 7,059,000      
Percentage of Net Assets [14],[18] 0.48%     0.48%
Unfunded Commitment $ 112,000      
Investment, Identifier [Axis]: iCIMS, Inc. 2        
Variable interest rate [14],[15],[18] 6.75%     6.75%
Interest Rate [14],[15],[18] 12.14%     12.14%
Cost [14],[15],[18] $ (1,000)      
Unused Fee Rate 0.50%      
Unfunded Commitment $ 38,000      
Investment, Identifier [Axis]: iCIMS, Inc. 3        
Variable interest rate [14],[15],[18] 6.75%     6.75%
Interest Rate [14],[15],[18] 12.14%     12.14%
Par Amount [14],[15],[18] $ 8,000      
Cost [14],[15],[18] 7,000      
Fair Value [14],[15],[18] 8,000      
Investment, Identifier [Axis]: mPulse Mobile, Inc.        
Par Amount 165,761,000 [14],[23] $ 165,761,000 [4],[24]    
Par Amount, Shares (in shares) | shares   165,761 [5],[25] 165,761,000  
Cost 1,220,000 [14],[20],[23] $ 1,220,000 [1],[4],[5],[24],[25] $ 1,220,000  
Fair Value $ 1,147,000 [14],[23] $ 1,281,000 [4],[5],[24],[25] $ 1,220,000  
Percentage of Net Assets 0.08% [14],[23] 0.09% [4],[5],[24],[25] 0.10% 0.08% [14],[23]
Investment, Identifier [Axis]: mPulse Mobile, Inc. 1        
Variable interest rate 5.25% [14],[18] 5.25% 5.25% [6],[19] 5.25% [14],[18]
Interest Rate 10.75% [14],[18] 9.32% 6.00% [6],[8],[19] 10.75% [14],[18]
Par Amount $ 17,369,000 [14],[18] $ 17,500,000 $ 17,500,000 [6],[19]  
Cost 17,108,000 [14],[18] 17,200,000 17,152,000 [1],[6],[19]  
Fair Value $ 17,100,000 [14],[18] $ 16,977,000 $ 17,152,000 [6],[19]  
Percentage of Net Assets 1.15% [14],[18] 1.21% 1.44% [6],[19] 1.15% [14],[18]
Unused Fee Rate 1.00% 1.00% 0.50%  
Unfunded Commitment $ 1,996,000 $ 1,996,000 $ 1,996,000  
Fair Value $ (31,000) $ (60,000) $ (20,000)  
Investment, Identifier [Axis]: mPulse Mobile, Inc. 2        
Variable interest rate 5.25% [14],[15],[18] 5.25% [15] 5.25% [6],[10],[19] 5.25% [14],[15],[18]
Interest Rate 10.75% [14],[15],[18] 9.32% [15] 6.00% [6],[8],[10],[19] 10.75% [14],[15],[18]
Cost $ (14,000) [14],[15],[18] $ (17,000) [15] $ (20,000) [1],[6],[10],[19]  
Fair Value $ (31,000) [14],[15],[18] $ (60,000) [15] $ (20,000) [6],[10],[19]  
Percentage of Net Assets   0.00% 0.00% [6],[10],[19]  
Unused Fee Rate 0.50% 0.50% 0.50%  
Unfunded Commitment $ 129,000 $ 353,000 $ 504,000  
Fair Value $ (2,000) $ (11,000) $ (10,000)  
Investment, Identifier [Axis]: mPulse Mobile, Inc. 3        
Variable interest rate 5.25% [14],[15],[18] 5.25% [15] 5.25% [6],[10],[19] 5.25% [14],[15],[18]
Interest Rate 10.75% [14],[15],[18] 9.32% [15] 6.00% [6],[8],[10],[19] 10.75% [14],[15],[18]
Par Amount [15] $ 375,000 [14],[18] $ 151,000    
Cost 368,000 [14],[15],[18] 143,000 [15] $ (10,000) [1],[6],[10],[19]  
Fair Value $ 368,000 [14],[15],[18] $ 136,000 [15] $ (10,000) [6],[10],[19]  
Percentage of Net Assets 0.02% [14],[15],[18] 0.01% [15] 0.00% [6],[10],[19] 0.02% [14],[15],[18]
Euro Interbank Offered Rate (EURIBOR)        
Variable interest rate 5.66% 2.13%   5.66%
London Interbank Offered Rate (LIBOR) | 1-month Period        
Variable interest rate 5.43% 4.39%   5.43%
London Interbank Offered Rate (LIBOR) | 3-month Period        
Variable interest rate 5.66% 4.77%   5.66%
London Interbank Offered Rate (LIBOR) | 6-month Period        
Variable interest rate 5.90% 5.14%   5.90%
Secured Overnight Financing Rate (SOFR) | 1-month Period        
Variable interest rate 5.32% 4.36%   5.32%
Secured Overnight Financing Rate (SOFR) | 3-month Period        
Variable interest rate 5.40% 4.59%   5.40%
Secured Overnight Financing Rate (SOFR) | 6-month Period        
Variable interest rate   4.78%    
Prime Rate        
Variable interest rate 8.50% 7.50%   8.50%
Health Care Equipment & Supplies        
Cost [20] $ 5,415,000      
Fair Value $ 5,374,000      
Percentage of Net Assets 0.36%     0.36%
First Lien Debt        
Cost $ 2,960,107,000 $ 2,753,620,000 $ 2,213,332,000 [1] € 2,960,107 [20]
Fair Value $ 2,933,870,000 $ 2,694,111,000 $ 2,224,100,000 € 2,933,870
Percentage of Net Assets 198.03% 192.81% 187.12% 198.03%
First Lien Debt | Aerospace & Defense        
Cost $ 52,573,000 [20] $ 52,520,000 [20] $ 38,993,000 [1]  
Fair Value $ 52,676,000 $ 51,531,000 $ 39,370,000  
Percentage of Net Assets 3.56% 3.69% 3.31% 3.56%
First Lien Debt | Air Freight & Logistics        
Cost $ 29,679,000 [20] $ 28,736,000 [20] $ 11,948,000 [1]  
Fair Value $ 29,888,000 $ 27,943,000 $ 11,948,000  
Percentage of Net Assets 2.02% 2.00% 1.01% 2.02%
First Lien Debt | Automobile Components        
Cost $ 86,866,000 [20] $ 86,480,000 [20] $ 51,698,000 [1]  
Fair Value $ 86,506,000 $ 83,574,000 $ 51,746,000  
Percentage of Net Assets 5.84% 5.98% 4.35% 5.84%
First Lien Debt | Automobiles        
Cost $ 154,223,000 $ 150,144,000 [9] $ 174,783,000 [1]  
Fair Value $ 154,132,000 $ 146,413,000 $ 175,583,000  
Percentage of Net Assets 10.40% 10.48% 14.77% 10.40%
First Lien Debt | Biotechnology        
Cost $ 15,611,000 $ 14,830,000 [9] $ 14,955,000 [1]  
Fair Value $ 15,603,000 $ 14,407,000 $ 14,955,000  
Percentage of Net Assets 1.05% 1.03% 1.26% 1.05%
First Lien Debt | Chemicals        
Cost $ 21,087,000 $ 18,797,000 [9]    
Fair Value $ 20,783,000 $ 18,066,000    
Percentage of Net Assets 1.40% 1.29%   1.40%
First Lien Debt | Commercial Services & Supplies        
Cost $ 320,119,000 $ 325,020,000 [1],[20] $ 306,205,000 [1]  
Fair Value $ 319,668,000 $ 319,508,000 $ 307,450,000  
Percentage of Net Assets 21.58% 22.87% 25.87% 21.58%
First Lien Debt | Construction & Engineering        
Cost $ 45,942,000 $ 37,932,000 [9] $ 35,799,000 [1]  
Fair Value $ 45,890,000 $ 36,734,000 $ 35,799,000  
Percentage of Net Assets 3.10% 2.63% 3.01% 3.10%
First Lien Debt | Containers & Packaging        
Cost $ 43,385,000 $ 43,852,000 [9] $ 36,043,000 [1]  
Fair Value $ 43,525,000 $ 42,522,000 $ 36,043,000  
Percentage of Net Assets 2.94% 3.04% 3.03% 2.94%
First Lien Debt | Distributors        
Cost $ 90,110,000 $ 122,968,000 [9] $ 28,636,000 [1]  
Fair Value $ 87,337,000 $ 120,982,000 $ 28,636,000  
Percentage of Net Assets 5.90% 8.66% 2.41% 5.90%
First Lien Debt | Diversified Consumer Services        
Cost $ 103,850,000 $ 88,142,000 [9] $ 36,642,000 [1]  
Fair Value $ 103,167,000 $ 87,147,000 $ 36,975,000  
Percentage of Net Assets 6.96% 6.24% 3.11% 6.96%
First Lien Debt | Financial Services        
Cost $ 53,913,000 $ 19,820,000 [9] $ 71,968,000 [1]  
Fair Value $ 54,126,000 $ 19,586,000 $ 72,070,000  
Percentage of Net Assets 3.65% 1.40% 6.06% 3.65%
First Lien Debt | Food Products        
Cost $ 72,090,000 $ 72,622,000 [9]    
Fair Value $ 70,806,000 $ 70,996,000    
Percentage of Net Assets 4.78% 5.08%   4.78%
First Lien Debt | Electronic Equipment, Instruments & Components        
Cost $ 26,500,000 $ 13,448,000 [9]    
Fair Value $ 25,815,000 $ 12,892,000    
Percentage of Net Assets 1.74% 0.92%   1.74%
First Lien Debt | Health Care Equipment & Supplies        
Cost $ 13,052,000   $ 62,269,000 [1]  
Fair Value $ 13,090,000   $ 62,602,000  
Percentage of Net Assets 0.88%   5.27% 0.88%
First Lien Debt | Health Care Providers & Services        
Cost $ 111,559,000 $ 90,686,000    
Fair Value $ 110,086,000 $ 88,460,000    
Percentage of Net Assets 7.43% 6.33%   7.43%
First Lien Debt | Health Care Technology        
Cost $ 61,214,000 $ 21,467,000 $ 21,562,000 [1]  
Fair Value $ 61,389,000 $ 21,148,000 $ 20,963,000  
Percentage of Net Assets 4.14% 1.51% 1.76% 4.14%
First Lien Debt | Industrial Conglomerates        
Cost $ 33,628,000 $ 1,666,000 [1] $ 35,958,000  
Fair Value $ 34,407,000 $ 1,612,000 $ 36,285,000  
Percentage of Net Assets 2.32% 0.12% 3.05% 2.32%
First Lien Debt | Insurance Sector [Member]        
Cost $ 466,713,000 $ 455,293,000 $ 401,473,000  
Fair Value $ 460,888,000 $ 446,804,000 $ 403,895,000  
Percentage of Net Assets 31.11% 31.98% 33.98% 31.11%
First Lien Debt | Interactive Media & Services        
Cost $ 104,614,000 $ 103,429,000 $ 90,189,000  
Fair Value $ 100,966,000 $ 101,077,000 $ 91,025,000  
Percentage of Net Assets 6.82% 7.23% 7.66% 6.82%
First Lien Debt | IT Services        
Cost $ 227,038,000 $ 230,561,000 $ 201,890,000  
Fair Value $ 220,202,000 $ 223,366,000 $ 202,960,000  
Percentage of Net Assets 14.86% 15.99% 17.08% 14.86%
First Lien Debt | Leisure Products        
Cost $ 21,596,000 $ 21,726,000 $ 54,292,000 [1]  
Fair Value $ 21,214,000 $ 21,557,000 $ 54,900,000  
Percentage of Net Assets 1.43% 1.54% 4.62% 1.43%
First Lien Debt | Machinery        
Cost $ 84,669,000 $ 88,999,000 $ 48,582,000 [1]  
Fair Value $ 83,742,000 $ 85,464,000 $ 48,133,000  
Percentage of Net Assets 5.65% 6.12% 4.05% 5.65%
First Lien Debt | Multi-Utilities        
Cost $ 21,738,000 $ 16,427,000 [1] $ 10,405,000 [1]  
Fair Value $ 21,760,000 $ 16,228,000 $ 10,600,000  
Percentage of Net Assets 1.47% 1.16% 0.89% 1.47%
First Lien Debt | Oil, Gas & Consumable Fuels        
Cost [1]   $ 399,000    
Fair Value   $ 390,000    
Percentage of Net Assets   0.03%    
First Lien Debt | Pharmaceuticals        
Cost $ 11,848,000 $ 11,157,000 [1]    
Fair Value $ 12,088,000 $ 11,157,000    
Percentage of Net Assets 0.82% 0.80%   0.82%
First Lien Debt | Professional Services        
Cost $ 110,638,000 $ 89,714,000 [1] $ 91,547,000 [1]  
Fair Value $ 110,995,000 $ 88,770,000 $ 92,207,000  
Percentage of Net Assets 7.49% 6.35% 7.76% 7.49%
First Lien Debt | Real Estate Management & Development        
Cost $ 163,130,000 [20] $ 155,654,000 [20] $ 121,237,000  
Fair Value $ 162,420,000 $ 152,029,000 $ 122,965,000  
Percentage of Net Assets 10.96% 10.88% 10.35% 10.96%
First Lien Debt | Software        
Cost   $ 381,883,000 $ 252,416,000 [1] € 412,722 [20]
Fair Value   $ 374,792,000 $ 252,952,000 € 410,701
Percentage of Net Assets 27.72% 26.82% 21.28% 27.72%
Second Lien Debt        
Cost $ 145,809,000 [20] $ 136,620,000 [1] $ 120,124,000  
Fair Value $ 134,712,000 $ 128,350,000 121,550,000  
Percentage of Net Assets 9.09% 9.19%   9.09%
Second Lien Debt | Electronic Equipment, Instruments & Components        
Cost   $ 16,939,000 16,912,000 [1]  
Fair Value   $ 16,194,000 $ 17,000,000  
Percentage of Net Assets   1.16% 1.43%  
Second Lien Debt | Health Care Providers & Services        
Cost   $ 5,318,000    
Fair Value   $ 4,946,000    
Percentage of Net Assets   0.35%    
Second Lien Debt | Industrial Conglomerates        
Cost [1]     $ 39,944,000  
Fair Value     $ 40,387,000  
Percentage of Net Assets     3.40%  
Second Lien Debt | IT Services        
Cost $ 40,072,000 [20] $ 40,016,000 [1]    
Fair Value $ 37,804,000 $ 37,735,000    
Percentage of Net Assets 2.55% 2.70%   2.55%
Second Lien Debt | Software        
Cost $ 23,801,000 [20] $ 23,770,000 [1] $ 120,124,000 [1]  
Fair Value $ 19,963,000 $ 22,341,000 $ 121,550,000  
Percentage of Net Assets 1.35% 1.60% 10.23% 1.35%
Other Securities        
Cost $ 52,685,000 [20] $ 49,406,000 [1] $ 39,979,000  
Fair Value $ 54,868,000 $ 51,127,000 $ 41,724,000  
Percentage of Net Assets 3.70% 3.66% 3.51% 3.70%
Unsecured debt        
Cost $ 3,386,000 [20] $ 3,326,000 [1] $ 1,777,000 [1]  
Fair Value $ 2,002,000 $ 2,198,000 $ 1,350,000  
Percentage of Net Assets 0.14% 0.16% 0.11% 0.14%
Preferred equity        
Cost $ 19,377,000 [20] $ 17,869,000 [1] $ 11,073,000  
Fair Value $ 19,456,000 $ 17,039,000 $ 11,248,000  
Percentage of Net Assets 1.31% 1.22% 0.95% 1.31%
Common equity        
Cost $ 29,922,000 [20] $ 28,211,000 [1] $ 27,129,000  
Fair Value $ 33,410,000 $ 31,890,000 $ 29,126,000  
Percentage of Net Assets 2.26% 2.28% 2.45% 2.26%
Unfunded Debt Securities        
Unfunded Commitment $ 287,164,000 $ 314,251,000 $ 509,403,000  
Fair Value (4,778,000) (10,260,000) (5,203,000)  
Unfunded Debt Securities, First Lien        
Unfunded Commitment 287,164,000 305,663,000 499,948,000  
Fair Value $ (4,778,000) (9,984,000) (5,196,000)  
Unfunded Debt Securities, Second Lien        
Unfunded Commitment   8,588,000 9,455,000  
Fair Value   $ (276,000) $ (7,000)  
Non Qualifying Assets | Assets, Total | Customer Concentration Risk        
% of Total Investments at Fair Value 6.24% 7.10%    
Restricted Securities        
Fair Value $ 52,866,000 $ 48,929,000    
Percentage of Net Assets 3.57% 3.50%   3.57%
[1] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[2] The Company reclassified certain industry groupings of its portfolio companies presented in the consolidated financial statements as of December 31, 2022 to align with the recently updated GICS, where applicable. These reclassifications had no impact on the Consolidated Statement of Assets and Liabilities as of December 31, 2022.
[3] Loan includes interest rate floor of 1.00%.
[4] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Company’s Valuation Designee, under the supervision of the Board of Directors (see Note 2 and Note 5), pursuant to the Company’s valuation policy.
[5] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Company’s Board of Directors (the "Board of Directors" or the "Board") (see Note 2 and Note 5), pursuant to the Company’s valuation policy.
[6] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Board of Directors (see Note 2 and Note 5), pursuant to the Company’s valuation policy.
[7] Variable rate loans to the portfolio companies bear interest at a rate that is determined by reference to either E, L or S or an alternate base rate (commonly based on F or P), each of which generally resets periodically. For each loan, the Company has indicated the reference rate used and provided the spread and the interest rate in effect as of December 31, 2022. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at December 31, 2022. As of December 31, 2022, the reference rates for our LIBOR-based loans were the 3-month E at 2.13%, the 1-month L at 4.39%, the 3-month L at 4.77%, the 6-month L at 5.14%; the reference rates for our SOFR-based loans were the 1-month S at 4.36%, the 3-month S at 4.59%, the 6-month S at 4.78%; and the reference rate for our Prime rate-based loans were at 7.50%.
[8] Variable rate loans to the portfolio companies bear interest at a rate that is determined by reference to either LIBOR (“L”) or an alternate base rate (commonly based on the Federal Funds Rate (“F”) or the U.S. Prime Rate (“P”)), each of which generally resets periodically. For each loan, the Company has indicated the reference rate used and provided the spread and the interest rate in effect as of December 31, 2021. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at December 31, 2021. As of December 31, 2021, the reference rates for our variable rate loans were the 30-day L at 0.10%, the 90-day L at 0.21%, the 180-day L at 0.34%, and the P at 3.25%.
[9] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[10] Position or portion thereof is an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Negative cost and fair value, if any, results from unamortized fees, which are capitalized to the cost of the investment. The unfunded loan commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See below for more information on the Company’s unfunded commitments as of December 31, 2021:
[11] Position or portion thereof is an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Negative cost and fair value, if any, results from unamortized fees, which are capitalized to the cost of the investment. The unfunded loan commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See below for more information on the Company’s unfunded commitments as of December 31, 2022:
[12] Position or portion thereof is an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Negative cost and fair value, if any, results from unamortized fees, which are capitalized to the cost of the investment. The unfunded loan commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See below for more information on the Company’s unfunded commitments as of December 31, 2022:
[13] Assets or a portion thereof are pledged as collateral for the BNP Funding Facility (as defined below). See Note 6 “Debt”.
[14] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Company’s Valuation Designee (the “Valuation Designee”), under the supervision of the Board of Directors (the “Board of Directors” or the “Board”) (see Note 2 and Note 5), pursuant to the Company’s valuation policy.
[15] Position or portion thereof is an unfunded loan commitment, and no interest is being earned on the unfunded portion, although the investment may earn unused commitment fees. Negative cost and fair value, if any, results from unamortized fees, which are capitalized to the cost of the investment. The unfunded loan commitment may be subject to a commitment termination date that may expire prior to the maturity date stated.
[16] Assets or a portion thereof are pledged as collateral for the BNP Funding Facility (as defined below). See Note 6 “Debt”.
[17] Assets or a portion thereof are pledged as collateral for the BNP Funding Facility (as defined below). See Note 6 “Debt”.
[18] Loan includes interest rate floor of 0.75%.
[19] Loan includes interest rate floor of 0.75%.
[20] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[21] Assets or a portion thereof are pledged as collateral for the BNP Funding Facility. See Note 6 “Debt”.
[22] Variable rate loans to the portfolio companies bear interest at a rate that is determined by reference to either EURIBOR ("E"), LIBOR ("L") or SOFR ("S") or an alternate base rate (commonly based on the Federal Funds Rate ("F") or the U.S. Prime Rate ("P")), each of which generally resets periodically. For each loan, the Company has indicated the reference rate used and provided the spread and the interest rate in effect as of December 31, 2022. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at December 31, 2022. As of December 31, 2022, the reference rates for our LIBOR-based loans were the 3-month E at 2.13%, the 30-day L at 4.39%, the 90-day L at 4.77%, the 180-day L at 5.14%; the reference rates for our SOFR-based loans were the 30-day S at 4.36%, the 90-day S at 4.59%, the 180-day S at 4.78%; and the reference rate for our Prime rate-based loans were at 7.50%.
[23] Securities exempt from registration under the Securities Act of 1933, and may be deemed to be “restricted securities”. As of September 30, 2023, the aggregate fair value of these securities is $52,866 or 3.57% of the Company’s net assets. The initial acquisition dates have been included for such securities.
[24] Securities exempt from registration under the Securities Act of 1933, and may be deemed to be “restricted securities”. As of December 31, 2022, the aggregate fair value of these securities is $48,929 or 3.50% of the Company’s net assets. The initial acquisition dates have been included for such securities.
[25] Securities exempt from registration under the Securities Act of 1933, and may be deemed to be “restricted securities”. As of December 31, 2022, the aggregate fair value of these securities is $48,929 or 3.5% of the Company’s net assets. The initial acquisition dates have been included for such securities.
[26] Loan includes interest rate floor of 0.50%.
[27] Variable rate loans to the portfolio companies bear interest at a rate that is determined by reference to either EURIBOR (“E”), LIBOR (“L” or “LIBOR”) or SOFR (“S”) or an alternate base rate (commonly based on the Federal Funds Rate (“F”) or the U.S. Prime Rate (“P”)), each of which generally resets periodically. For each loan, the Company has indicated the reference rate used and provided the spread and the interest rate in effect as of September 30, 2023. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at September 30, 2023. As of September 30, 2023, the reference rates for our LIBOR-based loans were the 3-month E at 5.66%, the 1-month L at 5.43% , the 3-month L at 5.66% , the 6-month L at 5.90%; the reference rates for our SOFR-based loans were the 1-month S at 5.32%, the 3-month S at 5.40%; and the P at 8.50% .
[28] The investment is not a qualifying asset under Section 55(a) of the 1940 Act. The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of September 30, 2023, non-qualifying assets represented 6.24% of total assets as calculated in accordance with regulatory requirements.
[29] The investment is not a qualifying asset under Section 55(a) of the 1940 Act. The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2022, non-qualifying assets represented 7.1% of total assets as calculated in accordance with regulatory requirements.
[30] The investment is not a qualifying asset under Section 55(a) of the 1940 Act. The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2022, non-qualifying assets represented 7.10% of total assets as calculated in accordance with regulatory requirements.
[31] The investment is not a qualifying asset under Section 55(a) of the 1940 Act. The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2021, non-qualifying assets represented 5.7% of total assets as calculated in accordance with regulatory requirements.
[32] Investment was on non-accrual status as of December 31, 2022.
[33] Investment was on non-accrual status as of September 30, 2023.
[34] Investment was on non-accrual status as of December 31, 2022.
[35] Represents a senior unsecured note, which is subordinated to senior secured term loans of the portfolio company.
[36] Loan includes interest rate floor of 0.50%.
[37] Loan includes interest rate floor of 1.00%
[38] The investment is not a qualifying asset under Section 55(a) of the 1940 Act. The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2022, non-qualifying assets represented 7.10% of total assets as calculated in accordance with regulatory requirements.