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Consolidated Schedule of Investments (Parenthetical)
€ in Thousands, £ in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
investment
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
investment
Mar. 31, 2025
EUR (€)
investment
Mar. 31, 2025
GBP (£)
investment
Dec. 31, 2024
EUR (€)
investment
Dec. 31, 2024
GBP (£)
investment
Sep. 30, 2023
USD ($)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
May 03, 2013
USD ($)
Cost basis of securities purchased under collateralized agreements to resell $ 30,000   $ 30,000                
Fair value of securities purchased under collateralized agreements to resell 13,500   13,500                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 3,091,024                    
Net Change In Unrealized Appreciation (Depreciation) (48,927) $ 2,994                  
Fair value, ending balance 3,034,211   $ 3,091,024                
Net Realized Gains (Losses) $ 37,825 (11,827)                  
Investments at fair value that are non-qualifying assets as a percentage of total assets 14.20%   14.60% 14.20% 14.20% 14.60% 14.60%        
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) And Eagle Infrastructure Super HoldCo, LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance $ 19,156 17,873 $ 17,873                
Gross additions [1]     0                
Gross redemptions [2]     (50)                
Net Change In Unrealized Appreciation (Depreciation)     1,333                
Fair value, ending balance     19,156                
Net Realized Gains (Losses)     0                
Interest Income     1,432                
Dividend Income     0                
Other Income     0                
Sierra Hamilton Holdings Corporation                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 2,000 2,000 2,000                
Gross additions [1]     0                
Gross redemptions [2]     0                
Net Change In Unrealized Appreciation (Depreciation)     0                
Fair value, ending balance     2,000                
Net Realized Gains (Losses)     0                
Interest Income     0                
Dividend Income     0                
Other Income     0                
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 91,620 113,786 113,786                
Gross additions [1]     16,409                
Gross redemptions [2]     0                
Net Change In Unrealized Appreciation (Depreciation)     (38,575)                
Fair value, ending balance     91,620                
Net Realized Gains (Losses)     0                
Interest Income     3,659                
Dividend Income     5,843                
Other Income     250                
NMFC Senior Loan Program III LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Dividend Income 5,800 5,863                  
NMFC Senior Loan Program IV LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Dividend Income 3,934 4,356                  
Non-controlled/Affiliated                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 112,776 133,659 133,659                
Gross additions 2,673 [3]   16,409 [1]                
Gross redemptions 0 [4]   (50) [2]                
Net Change In Unrealized Appreciation (Depreciation) (4,891)   (37,242)                
Fair value, ending balance 110,558   112,776                
Net Realized Gains (Losses) 0   0                
Interest Income 1,318   5,091                
Dividend Income 1,683   5,843                
Other Income 63 63 250                
Non-controlled/Affiliated | Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) And Eagle Infrastructure Super HoldCo, LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 19,156                    
Gross additions [3] 0                    
Gross redemptions [4] 0                    
Net Change In Unrealized Appreciation (Depreciation) (819)                    
Fair value, ending balance 18,337   19,156                
Net Realized Gains (Losses) 0                    
Interest Income 327                    
Dividend Income 0                    
Other Income 0                    
Non-controlled/Affiliated | Sierra Hamilton Holdings Corporation                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 2,000                    
Gross additions [3] 0                    
Gross redemptions [4] 0                    
Net Change In Unrealized Appreciation (Depreciation) 0                    
Fair value, ending balance 2,000   2,000                
Net Realized Gains (Losses) 0                    
Interest Income 0                    
Dividend Income 0                    
Other Income 0                    
Non-controlled/Affiliated | TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 91,620                    
Gross additions [3] 2,673                    
Gross redemptions [4] 0                    
Net Change In Unrealized Appreciation (Depreciation) (4,072)                    
Fair value, ending balance 90,221   91,620                
Net Realized Gains (Losses) 0                    
Interest Income 991                    
Dividend Income 1,683                    
Other Income 63                    
Controlled                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 700,896 667,796 667,796                
Gross additions 71,003 [5]   47,177 [6]                
Gross redemptions (60,582) [7]   (14,413) [8]                
Net Change In Unrealized Appreciation (Depreciation) (48,392)   336                
Fair value, ending balance 662,925   700,896                
Net Realized Gains (Losses) 38,899   2,000                
Interest Income 5,173   21,449                
Dividend Income 14,269   55,086                
Other Income 1,828 873 3,392                
Controlled | Haven Midstream LLC / Haven Midstream Holdings LLC / QID TRH Holdings LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 0 3,419 3,419                
Gross additions [6]     0                
Gross redemptions [8]     0                
Net Change In Unrealized Appreciation (Depreciation)     (3,419)                
Fair value, ending balance     0                
Net Realized Gains (Losses)     4,981                
Interest Income     0                
Dividend Income     0                
Other Income     41                
Controlled | National HME, Inc./NHME Holdings Corp.                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 3,000 3,000 3,000                
Gross additions 0 [5]   0 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) 0   0                
Fair value, ending balance 3,000   3,000                
Net Realized Gains (Losses) 0   0                
Interest Income 0   0                
Dividend Income 0   0                
Other Income 0   0                
Controlled | New Benevis Topco, LLC / New Benevis Holdco, Inc.                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 140,102 135,401 135,401                
Gross additions 6,055 [5]   10,595 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) (1,408)   (5,894)                
Fair value, ending balance 144,749   140,102                
Net Realized Gains (Losses) 0   0                
Interest Income 3,311   12,934                
Dividend Income 0   0                
Other Income 1,383   375                
Controlled | New Permian Holdco, Inc. / New Permian Holdco, L.L.C.                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 63,076 63,170 63,170                
Gross additions 1,345 [5]   7,005 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) (2,901)   (7,099)                
Fair value, ending balance 61,520   63,076                
Net Realized Gains (Losses) 0   0                
Interest Income 1,346   5,382                
Dividend Income 0   0                
Other Income 125   500                
Controlled | NM APP CANADA CORP                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 0 7 7                
Gross additions [6]     0                
Gross redemptions [8]     0                
Net Change In Unrealized Appreciation (Depreciation)     (7)                
Fair value, ending balance     0                
Net Realized Gains (Losses)     31                
Interest Income     0                
Dividend Income     0                
Other Income     0                
Controlled | NM CLFX LP [Member]                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 0 11,731 11,731                
Gross additions [6]     0                
Gross redemptions [8]     (12,279)                
Net Change In Unrealized Appreciation (Depreciation)     548                
Fair value, ending balance     0                
Net Realized Gains (Losses)     (2,461)                
Interest Income     0                
Dividend Income     24                
Other Income     845                
Controlled | NM NL Holdings, L.P.                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 104,512 96,071 96,071                
Gross additions 0 [5]   0 [6]                
Gross redemptions 0 [7]   (2,123) [8]                
Net Change In Unrealized Appreciation (Depreciation) 699   10,564                
Fair value, ending balance 105,211   104,512                
Net Realized Gains (Losses) 0   (548)                
Interest Income 0   0                
Dividend Income 2,225   8,116                
Other Income 0   181                
Controlled | NM GP Holdco, LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 322 1,048 1,048                
Gross additions 0 [5]   0 [6]                
Gross redemptions 0 [7]   (11) [8]                
Net Change In Unrealized Appreciation (Depreciation) 61   (715)                
Fair value, ending balance 383   322                
Net Realized Gains (Losses) 0   (3)                
Interest Income 0   0                
Dividend Income 13   89                
Other Income 0   0                
Controlled | NM YI LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 9,960 9,550 9,550                
Gross additions 0 [5]   0 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) (1,033)   410                
Fair value, ending balance 8,927   9,960                
Net Realized Gains (Losses) 0   0                
Interest Income 0   0                
Dividend Income 226   879                
Other Income 0   0                
Controlled | NMFC Senior Loan Program III LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 160,000 140,000 140,000                
Gross additions 0 [5]   20,000 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) 0   0                
Fair value, ending balance 160,000   160,000                
Net Realized Gains (Losses) 0   0                
Interest Income 0   0                
Dividend Income 5,800   23,304                
Other Income 0   0                
Controlled | NMFC Senior Loan Program IV LLC                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 112,400 112,400 112,400                
Gross additions 0 [5]   0 [6]                
Gross redemptions 0 [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) 0   0                
Fair value, ending balance 112,400   112,400                
Net Realized Gains (Losses) 0   0                
Interest Income 0   0                
Dividend Income 3,934   16,228                
Other Income 0   0                
Controlled | UniTek Global Services, Inc.                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 107,524 $ 91,999 91,999                
Gross additions 63,603 [5]   9,577 [6]                
Gross redemptions (60,582) [7]   0 [8]                
Net Change In Unrealized Appreciation (Depreciation) (43,810)   5,948                
Fair value, ending balance 66,735   107,524                
Net Realized Gains (Losses) 38,899   0                
Interest Income 516   3,133                
Dividend Income 2,071   6,446                
Other Income 320   1,450                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien                      
Principal Amount or Par Value [9],[10],[11],[12],[13] $ 4,698                    
Spread [9],[11],[12],[13] 6.25%     6.25% 6.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12],[13] $ 4,698                    
Investment, Identifier [Axis]: AAC Lender Holdings, LLC, Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 0                    
Fair value, ending balance 0 [11],[12]   0 [14],[15]                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn                      
Principal Amount or Par Value 3,659 [10],[11],[12],[16]   3,659 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 1                      
Principal Amount or Par Value $ 22,675 [10],[11],[19],[20]   $ 22,733 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 22,734                    
Fair value, ending balance 22,675 [11],[19],[20]   $ 22,734 [14],[21],[22]                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 2                      
Principal Amount or Par Value $ 20,165 [9],[10],[11],[12]   $ 20,218 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 20,218                    
Fair value, ending balance 20,165 [9],[11],[12]   $ 20,218 [14],[15],[23]                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 3                      
Principal Amount or Par Value $ 9,575 [10],[11],[24]   $ 9,599 [14],[17],[25]                
Spread 5.25% [11],[24]   5.25% [14],[25] 5.25% [11],[24] 5.25% [11],[24] 5.25% [14],[25] 5.25% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 9,599                    
Fair value, ending balance 9,575 [11],[24]   $ 9,599 [14],[25]                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 4                      
Principal Amount or Par Value $ 7,357 [10],[11],[24]   $ 7,375 [14],[17],[25]                
Spread 5.25% [11],[24]   5.25% [14],[25] 5.25% [11],[24] 5.25% [11],[24] 5.25% [14],[25] 5.25% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 7,375                    
Fair value, ending balance 7,357 [11],[24]   $ 7,375 [14],[25]                
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 1                      
Principal Amount or Par Value 16,185 [9],[10],[11],[12]   15,733 [14],[15],[17],[23]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 15,366                    
Fair value, ending balance 15,916 [9],[11],[12]   15,366 [14],[15],[23]                
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 2                      
Principal Amount or Par Value 6,347 [10],[11],[24]   6,170 [14],[17],[25]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] 6,027                    
Fair value, ending balance $ 6,242 [11],[24]   $ 6,027 [14],[25]                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien                      
Number of investments held | investment 2   2 2 2 2 2        
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 282 [10],[11],[12],[16]   $ 235 [14],[15],[17],[18]                
Spread 5.50% [11],[12],[16]   5.50% [14],[15],[18] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[15],[18] 5.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 228                    
Fair value, ending balance 272 [11],[12],[16]   $ 228 [14],[15],[18]                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn                      
Principal Amount or Par Value 2,071 [10],[11],[12],[16],[26]   2,118 [14],[15],[17],[18],[27],[28]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[28] (62)                    
Fair value, ending balance (74) [11],[12],[16],[26]   (62) [14],[15],[18],[28]                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 1                      
Principal Amount or Par Value $ 22,089 [10],[11],[19],[20]   $ 21,910 [14],[17],[21],[22]                
Spread 2.75% [11],[19],[20],[29]   2.75% [14],[21],[22],[30] 2.75% [11],[19],[20],[29] 2.75% [11],[19],[20],[29] 2.75% [14],[21],[22],[30] 2.75% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 21,266                    
Fair value, ending balance 21,300 [11],[19],[20]   $ 21,266 [14],[21],[22]                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 2                      
Principal Amount or Par Value $ 4,240 [9],[10],[11],[12]   $ 4,206 [14],[15],[17],[23]                
Spread 2.75% [9],[11],[12],[29]   2.75% [14],[15],[23],[30] 2.75% [9],[11],[12],[29] 2.75% [9],[11],[12],[29] 2.75% [14],[15],[23],[30] 2.75% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 4,082                    
Fair value, ending balance 4,089 [9],[11],[12]   $ 4,082 [14],[15],[23]                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 3                      
Principal Amount or Par Value $ 3,915 [9],[10],[11],[12]   $ 3,884 [14],[15],[17],[23]                
Spread 2.75% [9],[11],[12],[29]   2.75% [14],[15],[23],[30] 2.75% [9],[11],[12],[29] 2.75% [9],[11],[12],[29] 2.75% [14],[15],[23],[30] 2.75% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,769                    
Fair value, ending balance 3,776 [9],[11],[12]   $ 3,769 [14],[15],[23]                
Investment, Identifier [Axis]: ACI Parent Inc., Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[28] 16,419                    
Fair value, ending balance 16,872 [11],[12],[26]   16,419 [14],[15],[28]                
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien                      
Principal Amount or Par Value $ 3,062 [9],[10],[11],[12]   $ 3,062 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12]   4.75% [14],[15],[23] 4.75% [9],[11],[12] 4.75% [9],[11],[12] 4.75% [14],[15],[23] 4.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,062                    
Fair value, ending balance 3,062 [9],[11],[12]   $ 3,062 [14],[15],[23]                
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien - Undrawn                      
Principal Amount or Par Value 3,077 [10],[11],[12],[16]   3,077 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien                      
Principal Amount or Par Value [14],[15],[17],[23],[31]     $ 4,698                
Spread [14],[15],[23],[31]     6.25%     6.25% 6.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[31] 4,698                    
Fair value, ending balance [14],[15],[23],[31]     $ 4,698                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [14],[15],[17],[18]     1,048                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [10],[11],[12],[16] 1,048                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 667 [10],[11],[12],[16]   667 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp., First lien                      
Principal Amount or Par Value $ 8,478 [9],[10],[11],[12]   $ 8,510 [14],[15],[17],[23]                
Spread 6.75% [9],[11],[12]   6.75% [14],[15],[23] 6.75% [9],[11],[12] 6.75% [9],[11],[12] 6.75% [14],[15],[23] 6.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 8,404                    
Fair value, ending balance $ 8,372 [9],[11],[12]   $ 8,404 [14],[15],[23]                
Investment, Identifier [Axis]: Ambrosia Holdco Corp., First lien                      
Number of investments held | investment 2   2 2 2 2 2        
Investment, Identifier [Axis]: Ambrosia Holdco Corp., Ordinary shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] $ 1,348                    
Fair value, ending balance 1,291 [11],[20]   $ 1,348 [14],[22]                
Investment, Identifier [Axis]: Ambrosia Holdco Corp., Ordinary shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 1,300                    
Fair value, ending balance 1,245 [11],[12]   1,300 [14],[15]                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     1,969                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 1,969                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 1                      
Principal Amount or Par Value $ 18,915 [9],[10],[11],[12]   $ 18,964 [14],[17],[21],[22]                
Spread 5.25% [9],[11],[12]   5.25% [14],[21],[22] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 18,964                    
Fair value, ending balance 18,915 [9],[11],[12]   $ 18,964 [14],[21],[22]                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 2                      
Principal Amount or Par Value $ 5,264 [10],[11],[19],[20]   $ 5,277 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 5,277                    
Fair value, ending balance 5,264 [11],[19],[20]   $ 5,277 [14],[21],[22]                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 3                      
Principal Amount or Par Value $ 691 [9],[10],[11],[12]   $ 693 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 693                    
Fair value, ending balance 691 [9],[11],[12]   $ 693 [14],[15],[23]                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien                      
Principal Amount or Par Value $ 31,406                    
Number of investments held | investment 2   2 2 2 2 2        
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18],[32]     $ 2,652                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[32] $ 0                    
Fair value, ending balance [14],[15],[18],[32]     0                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 2,652                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 1                      
Principal Amount or Par Value $ 29,879 [10],[11],[20],[33]   $ 29,879 [14],[17],[22]                
Spread 0.50% [11],[20],[29],[33]   0.50% [14],[22],[30] 0.50% [11],[20],[29],[33] 0.50% [11],[20],[29],[33] 0.50% [14],[22],[30] 0.50% [14],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] $ 17,999                    
Fair value, ending balance 17,999 [11],[20],[33]   $ 17,999 [14],[22]                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 2                      
Principal Amount or Par Value $ 1,527 [10],[11],[12],[33]   $ 1,527 [14],[15],[17]                
Spread 0.50% [11],[12],[29],[33]   0.50% [14],[15],[30] 0.50% [11],[12],[29],[33] 0.50% [11],[12],[29],[33] 0.50% [14],[15],[30] 0.50% [14],[15],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 0                    
Fair value, ending balance 0 [11],[12],[33]   $ 0 [14],[15]                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien, Non-accrual status                      
Principal Amount or Par Value               $ 17,927 $ 13,479    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Non-accrual status                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance 17,999                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated                      
Principal Amount or Par Value 5,230 [10],[11],[12],[33]   5,230 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 0                    
Fair value, ending balance 0 [11],[12],[33]   0 [14],[15]                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated, Non-accrual status                      
Principal Amount or Par Value                   $ 5,230  
Investment, Identifier [Axis]: Anaplan, Inc., First lien                      
Principal Amount or Par Value $ 10,592 [9],[10],[11],[12]   $ 10,618 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.25% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 10,618                    
Fair value, ending balance 10,592 [9],[11],[12]   $ 10,618 [14],[15],[23]                
Investment, Identifier [Axis]: Ancora Acquisition LLC, Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[34] 0                    
Fair value, ending balance 0 [11],[35]   0 [14],[34]                
Investment, Identifier [Axis]: Associations, Inc., First lien                      
Principal Amount or Par Value $ 49,306 [9],[10],[11],[12]   $ 49,430 [14],[15],[17],[23]                
Spread 6.50% [9],[11],[12]   6.50% [14],[15],[23] 6.50% [9],[11],[12] 6.50% [9],[11],[12] 6.50% [14],[15],[23] 6.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 49,430                    
Fair value, ending balance 49,799 [9],[11],[12]   $ 49,430 [14],[15],[23]                
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 2                      
Principal Amount or Par Value $ 953 [10],[11],[12],[16]   $ 641 [14],[15],[17],[18]                
Spread 6.50% [11],[12],[16]   6.50% [14],[15],[18] 6.50% [11],[12],[16] 6.50% [11],[12],[16] 6.50% [14],[15],[18] 6.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 641                    
Fair value, ending balance 962 [11],[12],[16]   $ 641 [14],[15],[18]                
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     3,200                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 1                      
Principal Amount or Par Value $ 2,277 [10],[11],[12],[16]   $ 1,539 [14],[15],[17],[18]                
Spread 6.50% [11],[12],[16]   6.50% [14],[15],[18] 6.50% [11],[12],[16] 6.50% [11],[12],[16] 6.50% [14],[15],[18] 6.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 1,539                    
Fair value, ending balance 2,277 [11],[12],[16]   $ 1,539 [14],[15],[18]                
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 2,884 [10],[11],[12]   1,539 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 29 [11],[12]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[12] 800                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12] 0                    
Investment, Identifier [Axis]: Associations, Inc., Subordinated 1                      
Principal Amount or Par Value 8,243 [10],[11],[12]   7,959 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 7,959                    
Fair value, ending balance 8,366 [11],[12]   7,959 [14],[15]                
Investment, Identifier [Axis]: Associations, Inc., Subordinated 2                      
Principal Amount or Par Value 3,148 [10],[11],[12]   3,039 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 3,039                    
Fair value, ending balance 3,195 [11],[12]   3,039 [14],[15]                
Investment, Identifier [Axis]: Aston FinCo S.a r.l. / Aston US Finco, LLC, Second lien                      
Principal Amount or Par Value $ 34,459 [9],[10],[11],[12]   $ 34,459 [14],[15],[17],[23],[31]                
Spread 8.25% [9],[11],[12]   8.25% [14],[15],[23],[31] 8.25% [9],[11],[12] 8.25% [9],[11],[12] 8.25% [14],[15],[23],[31] 8.25% [14],[15],[23],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[31] $ 34,459                    
Fair value, ending balance 34,459 [9],[11],[12]   $ 34,459 [14],[15],[23],[31]                
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18],[27],[31]     320                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[31] 0                    
Fair value, ending balance [14],[15],[18],[31]     0                
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[13],[16] 320                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[13],[16] 0                    
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 1                      
Principal Amount or Par Value $ 3,437 [9],[10],[11],[12]   $ 3,445 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,445                    
Fair value, ending balance 3,437 [9],[11],[12]   $ 3,445 [14],[15],[23]                
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 2                      
Principal Amount or Par Value $ 1,338 [9],[10],[11],[12]   $ 1,342 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 1,342                    
Fair value, ending balance 1,338 [9],[11],[12]   $ 1,342 [14],[15],[23]                
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.) First Lien 1                      
Principal Amount or Par Value [9],[10],[11],[12] $ 36,155                    
Spread [9],[11],[12] 5.75%     5.75% 5.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 35,446                    
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 1                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 21,624                
Spread [14],[15],[23]     5.75%     5.75% 5.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 21,138                    
Fair value, ending balance [14],[15],[23]     $ 21,138                
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 2                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 14,624                
Spread [14],[21],[22]     5.75%     5.75% 5.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 14,295                    
Fair value, ending balance [14],[21],[22]     $ 14,295                
Investment, Identifier [Axis]: Avalara, Inc., First lien                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 17,198                
Spread [14],[15],[23]     6.25%     6.25% 6.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 17,198                    
Fair value, ending balance [14],[15],[23]     $ 17,198                
Investment, Identifier [Axis]: Avalara, Inc., First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     1,720                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     $ 0                
Investment, Identifier [Axis]: Bach Special Limited (Bach Preference Limited), Preferred shares                      
Spread [15],[23],[31]     11.75%     11.75% 11.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [15],[23],[31] 13,867                    
Fair value, ending balance [15],[23],[31]     $ 13,867                
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien                      
Principal Amount or Par Value $ 13,652 [9],[10],[11],[12]   $ 13,687 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12]   4.75% [14],[15],[23] 4.75% [9],[11],[12] 4.75% [9],[11],[12] 4.75% [14],[15],[23] 4.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 13,585                    
Fair value, ending balance 13,550 [9],[11],[12]   $ 13,585 [14],[15],[23]                
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 1                      
Principal Amount or Par Value 2,065 [10],[11],[12],[16]   2,065 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (15)                    
Fair value, ending balance (15) [11],[12],[16]   (15) [14],[15],[18]                
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 2                      
Principal Amount or Par Value 2,894 [10],[11],[12],[16]   2,894 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (22)                    
Fair value, ending balance (22) [11],[12],[16]   (22) [14],[15],[18]                
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien                      
Principal Amount or Par Value $ 6,086 [9],[10],[11],[12]   $ 6,109 [14],[15],[17],[23],[36]                
Spread 7.00% [9],[11],[12]   7.00% [14],[15],[23],[36] 7.00% [9],[11],[12] 7.00% [9],[11],[12] 7.00% [14],[15],[23],[36] 7.00% [14],[15],[23],[36]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[36] $ 6,109                    
Fair value, ending balance 6,086 [9],[11],[12]   $ 6,109 [14],[15],[23],[36]                
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien - Undrawn                      
Principal Amount or Par Value 417 [10],[11],[12],[16]   417 [14],[15],[17],[18],[36]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[36] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18],[36]                
Investment, Identifier [Axis]: Bamboo Health Intermediate Holdings (fka Appriss Health Intermediate Holdings, Inc.), Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[36] 3,371                    
Fair value, ending balance [14],[15],[36]     3,371                
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien                      
Principal Amount or Par Value [10],[11],[12],[16] $ 466                    
Spread [11],[12],[16] 4.75%     4.75% 4.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 466                    
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Drawn                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 467                
Spread [14],[15],[18]     4.75%     4.75% 4.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 467                    
Fair value, ending balance [14],[15],[18]     $ 467                
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Undrawn                      
Principal Amount or Par Value 1,685 [10],[11],[12],[16]   1,685 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Bonterra LLC, First lien                      
Principal Amount or Par Value [9],[10],[12] $ 15,065                    
Spread [9],[12] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[12] $ 15,027                    
Investment, Identifier [Axis]: Bonterra LLC, First lien - Drawn                      
Principal Amount or Par Value [10],[12],[16] $ 266                    
Spread [12],[16] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] $ 265                    
Investment, Identifier [Axis]: Bonterra LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [10],[12],[16] 1,629                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] 0                    
Investment, Identifier [Axis]: Bonterra LLC, First lien - Undrawn 2                      
Principal Amount or Par Value [10],[12],[16] 1,363                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] (3)                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 1                      
Principal Amount or Par Value $ 1,316 [10],[11],[16],[37]   $ 1,319 [14],[17],[18],[38]                
Spread 5.00% [11],[16],[37]   5.00% [14],[18],[38] 5.00% [11],[16],[37] 5.00% [11],[16],[37] 5.00% [14],[18],[38] 5.00% [14],[18],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[38] $ 1,319                    
Fair value, ending balance 1,316 [11],[16],[37]   $ 1,319 [14],[18],[38]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 2                      
Principal Amount or Par Value $ 515 [10],[11],[12],[16]   $ 516 [14],[15],[17],[18]                
Spread 5.00% [11],[12],[16]   5.00% [14],[15],[18] 5.00% [11],[12],[16] 5.00% [11],[12],[16] 5.00% [14],[15],[18] 5.00% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 516                    
Fair value, ending balance 515 [11],[12],[16]   $ 516 [14],[15],[18]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 376 [10],[11],[12],[16]   376 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 1,594 [10],[11],[12],[16]   1,594 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 3                      
Principal Amount or Par Value 963 [10],[11],[16],[37]   963 [14],[17],[18],[38]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[38] 0                    
Fair value, ending balance 0 [11],[16],[37]   0 [14],[18],[38]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 1                      
Principal Amount or Par Value $ 19,969 [10],[11],[37]   $ 20,019 [14],[17],[38]                
Spread 5.00% [11],[37]   5.00% [14],[38] 5.00% [11],[37] 5.00% [11],[37] 5.00% [14],[38] 5.00% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 20,019                    
Fair value, ending balance 19,969 [11],[37]   $ 20,019 [14],[38]                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 2                      
Principal Amount or Par Value $ 7,808 [10],[11],[19],[20]   $ 7,827 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,827                    
Fair value, ending balance 7,808 [11],[19],[20]   $ 7,827 [14],[21],[22]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     935                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Drawn                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 417                
Spread [14],[15],[18]     5.00%     5.00% 5.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 417                    
Fair value, ending balance [14],[15],[18]     $ 417                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,847 [10],[11],[12],[16]   1,847 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[12],[16] 935                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 1                      
Principal Amount or Par Value $ 13,206 [10],[11],[19],[20]   $ 13,206 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 13,206                    
Fair value, ending balance 13,206 [11],[19],[20]   $ 13,206 [14],[21],[22]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 2                      
Principal Amount or Par Value $ 8,879 [9],[10],[11],[12]   $ 8,462 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 8,462                    
Fair value, ending balance 8,879 [9],[11],[12]   $ 8,462 [14],[15],[23]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 3                      
Principal Amount or Par Value $ 3,398 [10],[11],[19],[20]   $ 3,398 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 3,398                    
Fair value, ending balance 3,398 [11],[19],[20]   $ 3,398 [14],[21],[22]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 4                      
Principal Amount or Par Value $ 761 [10],[11],[19],[20]   $ 761 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 761                    
Fair value, ending balance 761 [11],[19],[20]   $ 761 [14],[21],[22]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 5                      
Principal Amount or Par Value $ 341 [10],[11],[19],[20]   $ 341 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 341                    
Fair value, ending balance 341 [11],[19],[20]   $ 341 [14],[21],[22]                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 6                      
Principal Amount or Par Value $ 272 [10],[11],[19],[20]   $ 272 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 272                    
Fair value, ending balance 272 [11],[19],[20]   $ 272 [14],[21],[22]                
Investment, Identifier [Axis]: CB Buyer, Inc., First lien                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 3,308                
Spread [14],[21],[22]     5.25%     5.25% 5.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 3,292                    
Fair value, ending balance [14],[21],[22]     $ 3,292                
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value [14],[15],[17],[18]     364                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (2)                    
Fair value, ending balance [14],[15],[18]     (2)                
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     934                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (5)                    
Fair value, ending balance [14],[15],[18]     (5)                
Investment, Identifier [Axis]: CFS Management, LLC, First lien 1                      
Principal Amount or Par Value $ 11,918 [9],[10],[11],[12]   $ 11,881 [14],[17],[21],[22]                
Spread 6.25% [9],[11],[12],[29]   6.25% [14],[21],[22],[30] 6.25% [9],[11],[12],[29] 6.25% [9],[11],[12],[29] 6.25% [14],[21],[22],[30] 6.25% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 10,693                    
Fair value, ending balance 10,429 [9],[11],[12]   $ 10,693 [14],[21],[22]                
Investment, Identifier [Axis]: CFS Management, LLC, First lien 2                      
Principal Amount or Par Value $ 3,551 [10],[11],[19],[20]   $ 3,539 [14],[17],[21],[22]                
Spread 6.25% [11],[19],[20],[29]   6.25% [14],[21],[22],[30] 6.25% [11],[19],[20],[29] 6.25% [11],[19],[20],[29] 6.25% [14],[21],[22],[30] 6.25% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 3,185                    
Fair value, ending balance 3,107 [11],[19],[20]   $ 3,185 [14],[21],[22]                
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien                      
Principal Amount or Par Value $ 8,514 [10],[11],[19],[20]   $ 8,493 [14],[17],[21],[22]                
Spread 6.75% [9],[11],[12],[16],[19],[20],[29]   6.75% [14],[21],[22],[30] 6.75% [9],[11],[12],[16],[19],[20],[29] 6.75% [9],[11],[12],[16],[19],[20],[29] 6.75% [14],[21],[22],[30] 6.75% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 8,449                    
Fair value, ending balance 8,514 [11],[19],[20]   $ 8,449 [14],[21],[22]                
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Drawn                      
Principal Amount or Par Value 1,073 [9],[10],[11],[12],[16]   $ 954 [14],[15],[17],[18],[23]                
Spread [14],[15],[18],[23],[30]     6.75%     6.75% 6.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] 950                    
Fair value, ending balance 1,073 [9],[11],[12],[16]   $ 950 [14],[15],[18],[23]                
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Undrawn                      
Principal Amount or Par Value 113 [10],[11],[12],[16]   226 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (1)                    
Fair value, ending balance 0 [11],[12],[16]   (1) [14],[15],[18]                
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien                      
Principal Amount or Par Value $ 6,500 [10],[11],[19],[20]   $ 6,516 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 6,483                    
Fair value, ending balance 6,467 [11],[19],[20]   $ 6,483 [14],[21],[22]                
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 565 [9],[10],[11],[12],[16]   $ 489 [14],[15],[17],[18],[23]                
Spread 5.00% [9],[11],[12],[16]   5.00% [14],[15],[18],[23] 5.00% [9],[11],[12],[16] 5.00% [9],[11],[12],[16] 5.00% [14],[15],[18],[23] 5.00% [14],[15],[18],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] $ 486                    
Fair value, ending balance 562 [9],[11],[12],[16]   $ 486 [14],[15],[18],[23]                
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 521 [10],[11],[12],[16]   597 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (3)                    
Fair value, ending balance (3) [11],[12],[16]   (3) [14],[15],[18]                
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 1,629 [10],[11],[12],[16]   1,629 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (8)                    
Fair value, ending balance (8) [11],[12],[16]   (8) [14],[15],[18]                
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     850                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 637 [10],[11],[12],[16]   $ 637 [14],[15],[17],[18]                
Spread 5.50% [11],[12],[16]   5.50% [14],[15],[18] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[15],[18] 5.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 637                    
Fair value, ending balance 637 [11],[12],[16]   $ 637 [14],[15],[18]                
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 850                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Calabrio, Inc., First lien 1                      
Principal Amount or Par Value $ 12,255 [10],[11],[37]   $ 12,286 [14],[17],[38]                
Spread 5.50% [11],[37]   5.50% [14],[38] 5.50% [11],[37] 5.50% [11],[37] 5.50% [14],[38] 5.50% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 12,286                    
Fair value, ending balance 12,255 [11],[37]   $ 12,286 [14],[38]                
Investment, Identifier [Axis]: Calabrio, Inc., First lien 2                      
Principal Amount or Par Value $ 1,570 [10],[11],[37]   $ 1,574 [14],[17],[38]                
Spread 5.50% [11],[37]   5.50% [14],[38] 5.50% [11],[37] 5.50% [11],[37] 5.50% [14],[38] 5.50% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 1,574                    
Fair value, ending balance 1,570 [11],[37]   $ 1,574 [14],[38]                
Investment, Identifier [Axis]: Cardinal Parent, Inc., First lien                      
Principal Amount or Par Value $ 11,700 [10],[24]   $ 11,730 [17],[25]                
Spread 4.50% [24]   4.50% [25] 4.50% [24] 4.50% [24] 4.50% [25] 4.50% [25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [25] $ 11,249                    
Fair value, ending balance 11,433 [24]   $ 11,249 [25]                
Investment, Identifier [Axis]: Cardinal Parent, Inc., Second lien                      
Principal Amount or Par Value $ 9,767 [10],[11],[24]   $ 9,767 [14],[17],[25]                
Spread 7.75% [11],[24]   7.75% [14],[25] 7.75% [11],[24] 7.75% [11],[24] 7.75% [14],[25] 7.75% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 9,423                    
Fair value, ending balance 9,655 [11],[24]   $ 9,423 [14],[25]                
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 35,797                
Spread [14],[21],[22],[30]     2.88%     2.88% 2.88%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 35,797                    
Fair value, ending balance [14],[21],[22]     $ 35,797                
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien - Undrawn                      
Principal Amount or Par Value 3,980 [10],[11],[12],[16]   3,980 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, Second Lien 1                      
Principal Amount or Par Value [10],[11],[19],[20] $ 36,023                    
Spread [11],[19],[20],[29] 2.88%     2.88% 2.88%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[19],[20] $ 36,023                    
Investment, Identifier [Axis]: Ciklum Inc, First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[12],[16] 2,989                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Ciklum Inc., First lien                      
Principal Amount or Par Value $ 9,512 [10],[11],[13],[19],[20]   $ 9,536 [14],[17],[21],[22],[31]                
Spread 6.50% [11],[13],[19],[20]   6.50% [14],[21],[22],[31] 6.50% [11],[13],[19],[20] 6.50% [11],[13],[19],[20] 6.50% [14],[21],[22],[31] 6.50% [14],[21],[22],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22],[31] $ 9,536                    
Fair value, ending balance 9,512 [11],[13],[19],[20]   $ 9,536 [14],[21],[22],[31]                
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 11,955 [10],[11],[12],[16]   11,955 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     2,989                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: CommerceHub, Inc., First lien                      
Principal Amount or Par Value $ 3,910 [9],[10],[11],[12]   $ 3,920 [14],[15],[17],[23]                
Spread 6.25% [9],[11],[12]   6.25% [14],[15],[23] 6.25% [9],[11],[12] 6.25% [9],[11],[12] 6.25% [14],[15],[23] 6.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,920                    
Fair value, ending balance 3,910 [9],[11],[12]   $ 3,920 [14],[15],[23]                
Investment, Identifier [Axis]: Compsych Investments Corp, First lien                      
Principal Amount or Par Value [10],[11],[19],[20] $ 1,162                    
Spread [11],[19],[20] 4.75%     4.75% 4.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[19],[20] $ 1,159                    
Investment, Identifier [Axis]: Compsych Investments Corp., First lien                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 1,164                
Spread [14],[21],[22]     4.75%     4.75% 4.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 1,162                    
Fair value, ending balance [14],[21],[22]     $ 1,162                
Investment, Identifier [Axis]: Compsych Investments Corp., First lien - Undrawn                      
Principal Amount or Par Value 333 [10],[11],[12],[16]   333 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (1)                    
Fair value, ending balance (1) [11],[12],[16]   (1) [14],[15],[18]                
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 1                      
Principal Amount or Par Value $ 13,243 [9],[10],[11],[12]   $ 13,152 [14],[15],[17],[23]                
Spread 1.00% [9],[11],[12],[29]   1.00% [14],[15],[23],[30] 1.00% [9],[11],[12],[29] 1.00% [9],[11],[12],[29] 1.00% [14],[15],[23],[30] 1.00% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 11,935                    
Fair value, ending balance 12,180 [9],[11],[12]   $ 11,935 [14],[15],[23]                
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 2                      
Principal Amount or Par Value $ 2,211 [9],[10],[11],[12]   $ 2,196 [14],[15],[17],[23]                
Spread 1.00% [9],[11],[12],[29]   1.00% [14],[15],[23],[30] 1.00% [9],[11],[12],[29] 1.00% [9],[11],[12],[29] 1.00% [14],[15],[23],[30] 1.00% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 1,993                    
Fair value, ending balance 2,034 [9],[11],[12]   $ 1,993 [14],[15],[23]                
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 1,050                
Spread [14],[15],[23]     5.25%     5.25% 5.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 1,050                    
Fair value, ending balance [14],[15],[23]     $ 1,050                
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien                      
Principal Amount or Par Value [9],[10],[11],[12] $ 1,047                    
Spread [9],[11],[12] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 1,047                    
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     578                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 578                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien                      
Principal Amount or Par Value $ 14,352 [9],[10],[11],[12]   $ 14,388 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 14,388                    
Fair value, ending balance 14,352 [9],[11],[12]   $ 14,388 [14],[15],[23]                
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 1,291 [10],[11],[12],[16]   1,291 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 989 [10],[11],[12],[16]   989 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 1                      
Principal Amount or Par Value $ 1,799 [10],[11],[19],[20]   $ 1,804 [14],[17],[21],[22]                
Spread 6.41% [11],[19],[20]   6.41% [14],[21],[22] 6.41% [11],[19],[20] 6.41% [11],[19],[20] 6.41% [14],[21],[22] 6.41% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 1,758                    
Fair value, ending balance 1,761 [11],[19],[20]   $ 1,758 [14],[21],[22]                
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 2                      
Principal Amount or Par Value $ 1,008 [9],[10],[11],[12]   $ 1,011 [14],[15],[17],[23]                
Spread 6.50% [9],[11],[12]   6.50% [14],[15],[23] 6.50% [9],[11],[12] 6.50% [9],[11],[12] 6.50% [14],[15],[23] 6.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 987                    
Fair value, ending balance 988 [9],[11],[12]   $ 987 [14],[15],[23]                
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc., Second lien                      
Principal Amount or Par Value $ 20,313 [9],[10],[12]   $ 20,313 [15],[17],[23]                
Spread 6.75% [9],[12]   6.75% [15],[23] 6.75% [9],[12] 6.75% [9],[12] 6.75% [15],[23] 6.75% [15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [15],[23] $ 20,281                    
Fair value, ending balance $ 20,034 [9],[12]   $ 20,281 [15],[23]                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Drawn                      
Spread [11],[12],[16] 5.75%     5.75% 5.75%            
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien (3)(13)(16) - Drawn                      
Principal Amount or Par Value [10],[11],[12],[16] $ 481                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 479                    
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn                      
Principal Amount or Par Value 1,924 [10],[11],[12],[16]   2,405 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (13)                    
Fair value, ending balance (8) [11],[12],[16]   (13) [14],[15],[18]                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 1                      
Principal Amount or Par Value $ 18,290 [9],[10],[11],[12]   $ 18,337 [14],[15],[17],[23]                
Spread 5.75% [9],[11],[12]   5.75% [14],[15],[23] 5.75% [9],[11],[12] 5.75% [9],[11],[12] 5.75% [14],[15],[23] 5.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 18,236                    
Fair value, ending balance 18,213 [9],[11],[12]   $ 18,236 [14],[15],[23]                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 2                      
Principal Amount or Par Value $ 6,849 [10],[11],[24]   $ 6,867 [14],[17],[25]                
Spread 5.75% [11],[24]   5.75% [14],[25] 5.75% [11],[24] 5.75% [11],[24] 5.75% [14],[25] 5.75% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 6,829                    
Fair value, ending balance 6,821 [11],[24]   $ 6,829 [14],[25]                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 3                      
Principal Amount or Par Value [9],[10],[11],[12] $ 3,380                    
Spread [9],[11],[12] 5.75%     5.75% 5.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 3,366                    
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, First lien - Undrawn                      
Principal Amount or Par Value 3,046 [10],[11],[12],[16]   3,046 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16]   986 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 1                      
Principal Amount or Par Value $ 12,845 [9],[10],[11],[12]   $ 12,878 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 12,878                    
Fair value, ending balance 12,845 [9],[11],[12]   $ 12,878 [14],[15],[23]                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 2                      
Principal Amount or Par Value $ 1,082 [10],[11],[19],[20]   $ 1,085 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 1,085                    
Fair value, ending balance 1,082 [11],[19],[20]   $ 1,085 [14],[21],[22]                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 3                      
Principal Amount or Par Value $ 65 [10],[11],[12]   $ 65 [14],[15],[17]                
Spread 5.00% [11],[12]   5.00% [14],[15] 5.00% [11],[12] 5.00% [11],[12] 5.00% [14],[15] 5.00% [14],[15]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 65                    
Fair value, ending balance 65 [11],[12]   $ 65 [14],[15]                
Investment, Identifier [Axis]: Daxko Acquisition Corporation., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 986                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC, Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 79,222                    
Fair value, ending balance 78,578 [9],[11],[12]   79,222 [14],[15],[23]                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn                      
Principal Amount or Par Value $ 3,027 [9],[10],[11],[12],[16]   $ 3,027 [14],[15],[17],[18],[23]                
Spread 5.75% [9],[11],[12],[16]   5.75% [14],[15],[18],[23] 5.75% [9],[11],[12],[16] 5.75% [9],[11],[12],[16] 5.75% [14],[15],[18],[23] 5.75% [14],[15],[18],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] $ 2,987                    
Fair value, ending balance 3,000 [9],[11],[12],[16]   $ 2,987 [14],[15],[18],[23]                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 1                      
Principal Amount or Par Value $ 36,998 [10],[11],[19],[20]   $ 37,094 [14],[17],[21],[22]                
Spread 5.75% [11],[19],[20]   5.75% [14],[21],[22] 5.75% [11],[19],[20] 5.75% [11],[19],[20] 5.75% [14],[21],[22] 5.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 36,604                    
Fair value, ending balance 36,672 [11],[19],[20]   $ 36,604 [14],[21],[22]                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 2                      
Principal Amount or Par Value $ 3,894 [9],[10],[11],[12]   $ 3,905 [14],[15],[17],[23]                
Spread 5.75% [9],[11],[12]   5.75% [14],[15],[23] 5.75% [9],[11],[12] 5.75% [9],[11],[12] 5.75% [14],[15],[23] 5.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,853                    
Fair value, ending balance $ 3,860 [9],[11],[12]   $ 3,853 [14],[15],[23]                
Investment, Identifier [Axis]: Diamond Parent Holdings Corp, Wholly-owned subsidiaries                      
Number of investments held | investment 2   2 2 2 2 2        
Investment, Identifier [Axis]: Digital Corporation, First Lien                      
Number of investments held | investment 2     2 2            
Investment, Identifier [Axis]: Diligent Corporation , First lien 1                      
Principal Amount or Par Value [10],[11],[19],[20] $ 19,821                    
Spread [11],[19],[20] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[19],[20] $ 19,821                    
Investment, Identifier [Axis]: Diligent Corporation , First lien 2                      
Principal Amount or Par Value [9],[10],[11],[12] $ 3,398                    
Spread [9],[11],[12] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 3,398                    
Investment, Identifier [Axis]: Diligent Corporation, First lien                      
Number of investments held | investment     2     2 2        
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 1                      
Principal Amount or Par Value 2,265 [10],[11],[12],[16]   $ 2,265 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 2                      
Principal Amount or Par Value 3,398 [10],[11],[12],[16]   3,398 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Diligent Corporation, First lien 1                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 19,821                
Spread [14],[21],[22]     5.00%     5.00% 5.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 19,821                    
Fair value, ending balance [14],[21],[22]     $ 19,821                
Investment, Identifier [Axis]: Diligent Corporation, First lien 2                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 3,398                
Spread [14],[15],[23]     5.00%     5.00% 5.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 3,398                    
Fair value, ending balance [14],[15],[23]     $ 3,398                
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc., Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[39] 13,609                    
Fair value, ending balance 14,364 [11],[12],[40]   13,609 [14],[15],[39]                
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 1                      
Principal Amount or Par Value $ 10,628 [10],[11],[19],[20]   $ 10,628 [14],[17],[21],[22]                
Spread 7.50% [11],[19],[20]   7.50% [14],[21],[22] 7.50% [11],[19],[20] 7.50% [11],[19],[20] 7.50% [14],[21],[22] 7.50% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 10,628                    
Fair value, ending balance 10,628 [11],[19],[20]   $ 10,628 [14],[21],[22]                
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 2                      
Principal Amount or Par Value $ 340 [10],[11],[12]   $ 340 [14],[15],[17]                
Spread 7.50% [11],[12]   7.50% [14],[15] 7.50% [11],[12] 7.50% [11],[12] 7.50% [14],[15] 7.50% [14],[15]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 340                    
Fair value, ending balance 340 [11],[12]   $ 340 [14],[15]                
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC, Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 8,188                    
Fair value, ending balance 7,369 [11],[12]   8,188 [14],[15]                
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien                      
Principal Amount or Par Value $ 7,113 [10],[11],[24],[41]   $ 7,113 [14],[17],[25],[42]                
Spread 4.75% [11],[24],[41]   4.75% [14],[25],[42] 4.75% [11],[24],[41] 4.75% [11],[24],[41] 4.75% [14],[25],[42] 4.75% [14],[25],[42]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25],[42] $ 7,078                    
Fair value, ending balance 7,078 [11],[24],[41]   $ 7,078 [14],[25],[42]                
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,206 [10],[11],[16],[24]   1,206 [14],[17],[18],[25]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[25] (6)                    
Fair value, ending balance (6) [11],[16],[24]   (6) [14],[18],[25]                
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 4,190 [10],[11],[12],[16]   4,190 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (21)                    
Fair value, ending balance (21) [11],[12],[16]   (21) [14],[15],[18]                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 305                    
Fair value, ending balance 305 [11],[12]   305 [14],[15]                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Preferred shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 2,900                    
Fair value, ending balance 2,900 [11],[12]   2,900 [14],[15]                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Preferred shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 2,702                    
Fair value, ending balance 2,702 [11],[12]   2,702 [14],[15]                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc., Junior preferred shares, Non-accrual status                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance 2,702                    
Investment, Identifier [Axis]: Eclipse Topco, Inc., Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25],[42] 1,952                    
Fair value, ending balance 1,952 [11],[24],[41]   1,952 [14],[25],[42]                
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC, Subordinated                      
Principal Amount or Par Value 23,277 [10],[11],[12],[43]   22,290 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 22,290                    
Fair value, ending balance 23,277 [11],[12],[43]   $ 22,290 [14],[15]                
Investment, Identifier [Axis]: Einstein Parent, Inc., First Lien - Drawn 1                      
Principal Amount or Par Value [9],[10],[11],[12] $ 55,582                    
Spread [9],[11],[12] 6.50%     6.50% 6.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 55,026                    
Investment, Identifier [Axis]: Einstein Parent, Inc.., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 5,750                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ (57)                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien                      
Number of investments held | investment 5   3 5 5 3 3        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18],[44]     $ 1,400                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[44] $ 0                    
Fair value, ending balance [14],[15],[18],[44]     0                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [10],[11],[12],[16] 909                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[16],[37] 2,723                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[16],[37] 0                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 3                      
Principal Amount or Par Value [10],[11],[12],[16] 1,400                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 1                      
Principal Amount or Par Value $ 8,527 [10],[11],[37]   $ 10,185 [14],[17],[38]                
Spread 5.00% [11],[37]   5.75% [14],[38] 5.00% [11],[37] 5.00% [11],[37] 5.75% [14],[38] 5.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 10,185                    
Fair value, ending balance 8,527 [11],[37]   $ 10,185 [14],[38]                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 2                      
Principal Amount or Par Value $ 4,753 [9],[10],[11],[12]   $ 5,677 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   6.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 6.00% [14],[15],[23] 6.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 5,677                    
Fair value, ending balance 4,753 [9],[11],[12]   $ 5,677 [14],[15],[23]                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 3                      
Principal Amount or Par Value $ 2,863 [10],[11],[37]   $ 3,419 [14],[17],[38]                
Spread 5.00% [11],[37]   5.75% [14],[38] 5.00% [11],[37] 5.00% [11],[37] 5.75% [14],[38] 5.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 3,419                    
Fair value, ending balance 2,863 [11],[37]   $ 3,419 [14],[38]                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 4                      
Principal Amount or Par Value $ 2,844 [10],[11],[37]   $ 3,397 [14],[17],[38]                
Spread 5.00% [11],[37]   5.75% [14],[38] 5.00% [11],[37] 5.00% [11],[37] 5.75% [14],[38] 5.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 3,397                    
Fair value, ending balance 2,844 [11],[37]   $ 3,397 [14],[38]                
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC, Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38],[44] 4,618                    
Fair value, ending balance 4,655 [11],[37],[45]   4,618 [14],[38],[44]                
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien                      
Principal Amount or Par Value [9],[10],[11],[12],[46] $ 8,058                    
Spread [9],[11],[12],[29],[46] 2.25%     2.25% 2.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12],[46] $ 8,038                    
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value [10],[11],[12],[16] 4,740                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[12],[16] 1,422                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] (4)                    
Investment, Identifier [Axis]: Firebird Co-Invest L.P, LP Interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[46] 3,358                    
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.), Second lien 1                      
Principal Amount or Par Value [10],[11],[24] $ 15,091                    
Spread [11],[24] 6.75%     6.75% 6.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[24] $ 14,319                    
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.), Second lien 2                      
Principal Amount or Par Value [9],[10],[11],[12] $ 2,012                    
Spread [9],[11],[12] 6.75%     6.75% 6.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 1,909                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien - Drawn                      
Principal Amount or Par Value [9],[10],[11],[12] $ 4,064                    
Spread [9],[11],[12] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 4,064                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien 1                      
Principal Amount or Par Value [10],[11],[19],[20] $ 37,095                    
Spread [11],[19],[20] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[19],[20] $ 37,095                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien 2                      
Principal Amount or Par Value [10],[11],[12],[16] $ 601                    
Spread [11],[12],[16] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 601                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 3,312 [10],[11],[12],[16]   3,312 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 1,710 [10],[11],[12],[16]   2,095 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 1                      
Principal Amount or Par Value $ 18,372 [10],[11],[19],[20]   $ 33,356 [14],[17],[21],[22]                
Spread 5.75% [11],[19],[20]   5.25% [14],[21],[22] 5.75% [11],[19],[20] 5.75% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 33,356                    
Fair value, ending balance 18,372 [11],[19],[20]   $ 33,356 [14],[21],[22]                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 2                      
Principal Amount or Par Value $ 7,744 [9],[10],[11],[12]   $ 4,075 [14],[15],[17],[23]                
Spread 5.75% [9],[11],[12]   5.25% [14],[15],[23] 5.75% [9],[11],[12] 5.75% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 4,075                    
Fair value, ending balance 7,744 [9],[11],[12]   $ 4,075 [14],[15],[23]                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, Subordinated                      
Principal Amount or Par Value [10],[11],[12] $ 16,953                    
Spread [11],[12] 7.50%     7.50% 7.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12] $ 16,953                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 1                      
Principal Amount or Par Value $ 1,287 [10],[11],[12],[16]   $ 1,001 [14],[15],[17],[18]                
Spread 5.50% [11],[12],[16]   5.50% [14],[15],[18] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[15],[18] 5.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 1,001                    
Fair value, ending balance 1,287 [11],[12],[16]   $ 1,001 [14],[15],[18]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 2                      
Principal Amount or Par Value $ 98 [10],[11],[12],[16]   $ 342 [14],[15],[17],[18]                
Spread 5.50% [11],[12],[16]   5.50% [14],[15],[18] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[15],[18] 5.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 342                    
Fair value, ending balance 98 [11],[12],[16]   $ 342 [14],[15],[18]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 3,262 [10],[11],[12],[16]   3,360 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 1,573 [10],[11],[12],[16]   1,859 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 1                      
Principal Amount or Par Value $ 17,132 [10],[11],[19],[20]   $ 17,176 [14],[17],[21],[22]                
Spread 5.50% [11],[19],[20]   5.50% [14],[21],[22] 5.50% [11],[19],[20] 5.50% [11],[19],[20] 5.50% [14],[21],[22] 5.50% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 17,176                    
Fair value, ending balance 17,132 [11],[19],[20]   $ 17,176 [14],[21],[22]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 2                      
Principal Amount or Par Value $ 12,330 [9],[10],[11],[12]   $ 12,020 [14],[15],[17],[23]                
Spread 5.50% [9],[11],[12]   5.50% [14],[15],[23] 5.50% [9],[11],[12] 5.50% [9],[11],[12] 5.50% [14],[15],[23] 5.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 12,020                    
Fair value, ending balance 12,330 [9],[11],[12]   $ 12,020 [14],[15],[23]                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 3                      
Principal Amount or Par Value $ 79 [10],[11],[12]   $ 80 [14],[15],[17]                
Spread 5.50% [11],[12]   5.50% [14],[15] 5.50% [11],[12] 5.50% [11],[12] 5.50% [14],[15] 5.50% [14],[15]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 80                    
Fair value, ending balance 79 [11],[12]   $ 80 [14],[15]                
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 1                      
Principal Amount or Par Value $ 22,500 [10],[11],[37]   $ 22,500 [14],[17],[38]                
Spread 6.50% [11],[37]   6.50% [14],[38] 6.50% [11],[37] 6.50% [11],[37] 6.50% [14],[38] 6.50% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 22,500                    
Fair value, ending balance 22,500 [11],[37]   $ 22,500 [14],[38]                
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 2                      
Principal Amount or Par Value $ 10,965 [9],[10],[11],[12]   $ 7,009 [14],[17],[21],[22]                
Spread 6.50% [9],[11],[12]   6.50% [14],[21],[22] 6.50% [9],[11],[12] 6.50% [9],[11],[12] 6.50% [14],[21],[22] 6.50% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,009                    
Fair value, ending balance 10,965 [9],[11],[12]   $ 7,009 [14],[21],[22]                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Undrawn                      
Principal Amount or Par Value 3,951 [10],[11],[12],[16]   3,951 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 1                      
Principal Amount or Par Value $ 40,211 [10],[11],[19],[20]   $ 40,312 [14],[17],[21],[22]                
Spread 4.75% [11],[19],[20]   4.75% [14],[21],[22] 4.75% [11],[19],[20] 4.75% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 40,312                    
Fair value, ending balance 40,211 [11],[19],[20]   $ 40,312 [14],[21],[22]                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 2                      
Principal Amount or Par Value $ 21,395 [10],[11],[37]   $ 21,448 [14],[17],[38]                
Spread 4.75% [11],[37]   4.75% [14],[38] 4.75% [11],[37] 4.75% [11],[37] 4.75% [14],[38] 4.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 21,448                    
Fair value, ending balance 21,395 [11],[37]   $ 21,448 [14],[38]                
Investment, Identifier [Axis]: GEDC Equity, LLC, Participation Interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 50                    
Fair value, ending balance 50 [11],[12]   50 [14],[15]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 318 [10],[11],[12],[16]   $ 319 [14],[15],[17],[18]                
Spread 5.25% [11],[12],[16]   5.25% [14],[15],[18] 5.25% [11],[12],[16] 5.25% [11],[12],[16] 5.25% [14],[15],[18] 5.25% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 319                    
Fair value, ending balance 318 [11],[12],[16]   $ 319 [14],[15],[18]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,120 [10],[11],[12],[16]   1,120 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 4,821 [10],[11],[12],[16]   4,821 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 1                      
Principal Amount or Par Value $ 34,628 [10],[11],[19],[20]   $ 34,719 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 34,719                    
Fair value, ending balance 34,628 [11],[19],[20]   $ 34,719 [14],[21],[22]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 2                      
Principal Amount or Par Value $ 21,241 [10],[11],[37]   $ 21,297 [14],[17],[38]                
Spread 5.25% [11],[37]   5.25% [14],[38] 5.25% [11],[37] 5.25% [11],[37] 5.25% [14],[38] 5.25% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 21,297                    
Fair value, ending balance 21,241 [11],[37]   $ 21,297 [14],[38]                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 3                      
Principal Amount or Par Value $ 2,901 [9],[10],[11],[12]   $ 2,909 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 2,909                    
Fair value, ending balance 2,901 [9],[11],[12]   $ 2,909 [14],[15],[23]                
Investment, Identifier [Axis]: Galway Borrower LLC, First lien                      
Principal Amount or Par Value $ 1,087 [10],[11],[19],[20]   $ 1,090 [14],[17],[21],[22]                
Spread 4.50% [11],[19],[20]   4.50% [14],[21],[22] 4.50% [11],[19],[20] 4.50% [11],[19],[20] 4.50% [14],[21],[22] 4.50% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 1,080                    
Fair value, ending balance 1,077 [11],[19],[20]   $ 1,080 [14],[21],[22]                
Investment, Identifier [Axis]: Galway Borrower LLC, First lien - Drawn                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 1,806                
Spread [14],[15],[18]     4.50%     4.50% 4.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 1,788                    
Fair value, ending balance [14],[15],[18]     $ 1,788                
Investment, Identifier [Axis]: Galway Borrower LLC, First lien Drawn                      
Principal Amount or Par Value [10],[11],[12],[16] $ 1,801                    
Spread [11],[12],[16] 4.50%     4.50% 4.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 1,783                    
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien                      
Principal Amount or Par Value $ 17,856 [10],[11],[19],[20]   $ 17,901 [14],[17],[21],[22]                
Spread 4.75% [11],[19],[20]   4.75% [14],[21],[22] 4.75% [11],[19],[20] 4.75% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 17,856                    
Fair value, ending balance 17,856 [11],[19],[20]   $ 17,856 [14],[21],[22]                
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Drawn                      
Principal Amount or Par Value $ 446 [10],[11],[12],[16]   $ 448 [14],[15],[17],[18]                
Spread 4.75% [11],[12],[16]   4.75% [14],[15],[18] 4.75% [11],[12],[16] 4.75% [11],[12],[16] 4.75% [14],[15],[18] 4.75% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 446                    
Fair value, ending balance 446 [11],[12],[16]   $ 446 [14],[15],[18]                
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 1,682 [10],[11],[12],[16]   1,682 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (4)                    
Fair value, ending balance 0 [11],[12],[16]   (4) [14],[15],[18]                
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 4,038 [10],[11],[12],[16]   4,038 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (10)                    
Fair value, ending balance 0 [11],[12],[16]   (10) [14],[15],[18]                
Investment, Identifier [Axis]: Greenway Health, LLC, First lien                      
Principal Amount or Par Value $ 6,286 [9],[10],[11],[12]   $ 6,302 [14],[15],[17],[23]                
Spread 6.75% [9],[11],[12]   6.75% [14],[15],[23] 6.75% [9],[11],[12] 6.75% [9],[11],[12] 6.75% [14],[15],[23] 6.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 6,302                    
Fair value, ending balance 6,286 [9],[11],[12]   $ 6,302 [14],[15],[23]                
Investment, Identifier [Axis]: Groundworks, LLC, First lien                      
Principal Amount or Par Value [17],[25]     $ 18,908                
Spread [25]     3.25%     3.25% 3.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [25] 19,034                    
Fair value, ending balance [25]     $ 19,034                
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Drawn                      
Principal Amount or Par Value [17],[18],[25]     $ 557                
Spread [18],[25]     3.25%     3.25% 3.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [18],[25] 560                    
Fair value, ending balance [18],[25]     $ 560                
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Undrawn                      
Principal Amount or Par Value [17],[18],[25]     2,938                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [18],[25] $ 20                    
Fair value, ending balance [18],[25]     $ 20                
Investment, Identifier [Axis]: HBWM Holdings, LLC, Ordinary shares                      
Spread [11],[29],[47] 4.00%     4.00% 4.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[47] $ 9,532                    
Investment, Identifier [Axis]: HBWM Holdings, LLC, Ordinary shares                      
Spread [14],[48]     4.00%     4.00% 4.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[48] 9,532                    
Fair value, ending balance [14],[48]     $ 9,532                
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 1                      
Principal Amount or Par Value $ 22,500 [10],[37]   $ 22,500 [17],[38]                
Spread 6.75% [37]   6.75% [38] 6.75% [37] 6.75% [37] 6.75% [38] 6.75% [38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [38] $ 14,513                    
Fair value, ending balance 16,313 [37]   $ 14,513 [38]                
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 2                      
Principal Amount or Par Value $ 4,208 [10],[19],[20]   $ 4,208 [17],[21],[22]                
Spread 6.75% [19],[20]   6.75% [21],[22] 6.75% [19],[20] 6.75% [19],[20] 6.75% [21],[22] 6.75% [21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [21],[22] $ 2,714                    
Fair value, ending balance 3,051 [19],[20]   $ 2,714 [21],[22]                
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien                      
Principal Amount or Par Value $ 5,056 [9],[10],[11],[12]   $ 5,069 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 5,069                    
Fair value, ending balance 5,056 [9],[11],[12]   $ 5,069 [14],[15],[23]                
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien - Undrawn                      
Principal Amount or Par Value 1,229 [10],[11],[12],[16]   1,229 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien                      
Principal Amount or Par Value $ 3,798 [9],[10],[11],[12]   $ 3,808 [14],[15],[17],[23]                
Spread 4.50% [9],[11],[12]   4.50% [14],[15],[23] 4.50% [9],[11],[12] 4.50% [9],[11],[12] 4.50% [14],[15],[23] 4.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 3,808                    
Fair value, ending balance 3,798 [9],[11],[12]   $ 3,808 [14],[15],[23]                
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 3,315 [10],[11],[12],[16]   $ 2,313 [14],[15],[17],[18]                
Spread 4.75% [11],[12],[16]   4.75% [14],[15],[18] 4.75% [11],[12],[16] 4.75% [11],[12],[16] 4.75% [14],[15],[18] 4.75% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 2,313                    
Fair value, ending balance 3,315 [11],[12],[16]   $ 2,313 [14],[15],[18]                
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Undrawn                      
Principal Amount or Par Value 4,665 [10],[11],[12],[16]   5,676 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First lien                      
Principal Amount or Par Value $ 14,447 [9],[10],[12]   $ 14,484 [15],[17],[23]                
Spread 5.25% [9],[12]   5.25% [15],[23] 5.25% [9],[12] 5.25% [9],[12] 5.25% [15],[23] 5.25% [15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [15],[23] $ 14,291                    
Fair value, ending balance 14,300 [9],[12]   $ 14,291 [15],[23]                
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien - Undrawn                      
Principal Amount or Par Value 3,780 [10],[11],[12],[16]   3,780 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 1                      
Principal Amount or Par Value $ 32,717 [10],[11],[19],[20]   $ 32,799 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 32,799                    
Fair value, ending balance 32,717 [11],[19],[20]   $ 32,799 [14],[21],[22]                
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 2                      
Principal Amount or Par Value $ 2,536 [9],[10],[11],[12]   $ 2,542 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 2,542                    
Fair value, ending balance 2,536 [9],[11],[12]   $ 2,542 [14],[15],[23]                
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien                      
Principal Amount or Par Value $ 8,696 [9],[10],[11],[12]   $ 8,696 [14],[15],[17],[23]                
Spread 6.50% [9],[11],[12]   6.50% [14],[15],[23] 6.50% [9],[11],[12] 6.50% [9],[11],[12] 6.50% [14],[15],[23] 6.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 8,696                    
Fair value, ending balance 8,696 [9],[11],[12]   $ 8,696 [14],[15],[23]                
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien - Undrawn                      
Principal Amount or Par Value 828 [10],[11],[12],[16]   828 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Idera, Inc., Second lien 1                      
Principal Amount or Par Value [14],[17],[25]     $ 15,091                
Spread [14],[25]     6.75%     6.75% 6.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] 15,091                    
Fair value, ending balance [14],[25]     $ 15,091                
Investment, Identifier [Axis]: Idera, Inc., Second lien 2                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 2,012                
Spread [14],[15],[23]     6.75%     6.75% 6.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 2,012                    
Fair value, ending balance [14],[15],[23]     $ 2,012                
Investment, Identifier [Axis]: Infogain Corporation, First lien - Undrawn                      
Principal Amount or Par Value 3,827 [10],[11],[12],[16]   3,827 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Infogain Corporation, First lien 1                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 18,372                
Spread [14],[21],[22]     5.75%     5.75% 5.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 18,372                    
Fair value, ending balance [14],[21],[22]     $ 18,372                
Investment, Identifier [Axis]: Infogain Corporation, First lien 2                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 7,764                
Spread [14],[15],[23]     5.75%     5.75% 5.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 7,764                    
Fair value, ending balance [14],[15],[23]     $ 7,764                
Investment, Identifier [Axis]: Infogain Corporation, Subordinated                      
Principal Amount or Par Value [14],[15],[17]     $ 16,953                
Spread [14],[15]     7.50%     7.50% 7.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 16,953                    
Fair value, ending balance [14],[15]     $ 16,953                
Investment, Identifier [Axis]: Integro Parent Inc., Second lien                      
Principal Amount or Par Value [14],[15],[17],[23],[31]     7,091                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[31] 6,331                    
Fair value, ending balance [14],[15],[23],[31]     $ 6,331                
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd, Structured Finance Obligations                      
Spread [15],[31]     7.00%     7.00% 7.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [15],[31] 3,232                    
Fair value, ending balance [15],[31]     $ 3,232                
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd, Structured Finance Obligations                      
Principal Amount or Par Value [10],[11],[12] $ 3,232                    
Spread [11],[12] 7.00%     7.00% 7.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12] $ 3,232                    
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Drawn                      
Principal Amount or Par Value $ 19 [10],[11],[12],[16]   $ 19 [14],[15],[17],[18]                
Spread 5.75% [11],[12],[16]   5.75% [14],[15],[18] 5.75% [11],[12],[16] 5.75% [11],[12],[16] 5.75% [14],[15],[18] 5.75% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 18                    
Fair value, ending balance 18 [11],[12],[16]   $ 18 [14],[15],[18]                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Undrawn                      
Principal Amount or Par Value 1,568 [10],[11],[12],[16]   1,568 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (47)                    
Fair value, ending balance (45) [11],[12],[16]   (47) [14],[15],[18]                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 1                      
Principal Amount or Par Value $ 6,809 [9],[10],[11],[12]   $ 6,827 [14],[15],[17],[23]                
Spread 5.50% [9],[11],[12]   5.50% [14],[15],[23] 5.50% [9],[11],[12] 5.50% [9],[11],[12] 5.50% [14],[15],[23] 5.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 6,570                    
Fair value, ending balance 6,591 [9],[11],[12]   $ 6,570 [14],[15],[23]                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 2                      
Principal Amount or Par Value $ 1,146 [9],[10],[11],[12]   $ 1,149 [14],[15],[17],[23]                
Spread 5.50% [9],[11],[12]   5.50% [14],[15],[23] 5.50% [9],[11],[12] 5.50% [9],[11],[12] 5.50% [14],[15],[23] 5.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 1,106                    
Fair value, ending balance 1,109 [9],[11],[12]   $ 1,106 [14],[15],[23]                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 3                      
Principal Amount or Par Value $ 780 [9],[10],[11],[12]   $ 782 [14],[15],[17],[23]                
Spread 5.50% [9],[11],[12]   5.50% [14],[15],[23] 5.50% [9],[11],[12] 5.50% [9],[11],[12] 5.50% [14],[15],[23] 5.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 752                    
Fair value, ending balance 755 [9],[11],[12]   $ 752 [14],[15],[23]                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 1                      
Principal Amount or Par Value [14],[15],[17],[18],[23]     $ 973                
Spread [14],[15],[18],[23]     5.50%     5.50% 5.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] 973                    
Fair value, ending balance [14],[15],[18],[23]     $ 973                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 751                
Spread [14],[15],[18]     5.50%     5.50% 5.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 751                    
Fair value, ending balance [14],[15],[18]     $ 751                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 1                      
Principal Amount or Par Value [14],[15],[17],[18]     2,865                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     2,888                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Kaseya Inc., First lien 1                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 64,124                
Spread [14],[21],[22]     5.50%     5.50% 5.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 64,124                    
Fair value, ending balance [14],[21],[22]     $ 64,124                
Investment, Identifier [Axis]: Kaseya Inc., First lien 2                      
Principal Amount or Par Value [14],[15],[17],[23]     $ 238                
Spread [14],[15],[23]     5.50%     5.50% 5.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 238                    
Fair value, ending balance [14],[15],[23]     $ 238                
Investment, Identifier [Axis]: Kaseya, Inc., First lien                      
Number of investments held | investment     2     2 2        
Investment, Identifier [Axis]: Kele Holdco, Inc. First Lien - Drawn                      
Principal Amount or Par Value [9],[10],[11],[12],[16] $ 180                    
Spread [9],[11],[12],[16] 4.50%     4.50% 4.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12],[16] $ 180                    
Investment, Identifier [Axis]: Kele Holdco, Inc. First Lien 1                      
Principal Amount or Par Value [10],[11],[37] $ 14,594                    
Spread [11],[37] 4.50%     4.50% 4.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[37] $ 14,594                    
Investment, Identifier [Axis]: Kele Holdco, Inc. First Lien 2                      
Principal Amount or Par Value [10],[11],[37] $ 1,261                    
Spread [11],[37] 4.50%     4.50% 4.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[37] $ 1,261                    
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 1,799                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 1                      
Principal Amount or Par Value [14],[17],[38]     $ 14,635                
Spread [14],[38]     4.50%     4.50% 4.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] 14,635                    
Fair value, ending balance [14],[38]     $ 14,635                
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 2                      
Principal Amount or Par Value [14],[17],[38]     $ 2,268                
Spread [14],[38]     4.50%     4.50% 4.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] 2,268                    
Fair value, ending balance [14],[38]     $ 2,268                
Investment, Identifier [Axis]: Kele Holdco, Inc.., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 1,619                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Kene Acquisition, Inc, First lien - Drawn                      
Principal Amount or Par Value [10],[11],[12],[16] $ 162                    
Spread [11],[12],[16] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 162                    
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien                      
Principal Amount or Par Value $ 3,500 [10],[11],[19],[20]   $ 3,509 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 3,509                    
Fair value, ending balance 3,500 [11],[19],[20]   $ 3,509 [14],[21],[22]                
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Drawn                      
Principal Amount or Par Value [14],[15],[17],[18]     $ 162                
Spread [14],[15],[18]     5.25%     5.25% 5.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 162                    
Fair value, ending balance [14],[15],[18]     $ 162                
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,398 [10],[11],[12],[16]   1,398 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 468 [10],[11],[12],[16]   468 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc., Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[49] 21,010                    
Fair value, ending balance 13,236 [11],[12]   21,010 [14],[15],[49]                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien                      
Principal Amount or Par Value $ 6,151 [10],[11],[37]   $ 6,124 [14],[17],[38]                
Spread 2.75% [11],[29],[37]   2.75% [14],[30],[38] 2.75% [11],[29],[37] 2.75% [11],[29],[37] 2.75% [14],[30],[38] 2.75% [14],[30],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 6,062                    
Fair value, ending balance 6,090 [11],[37]   $ 6,062 [14],[38]                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Drawn                      
Principal Amount or Par Value $ 333 [10],[11],[12],[16]   $ 72 [14],[15],[17],[18]                
Spread 5.00% [11],[12],[16]   5.00% [14],[15],[18] 5.00% [11],[12],[16] 5.00% [11],[12],[16] 5.00% [14],[15],[18] 5.00% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 71                    
Fair value, ending balance 329 [11],[12],[16]   $ 71 [14],[15],[18]                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 358 [10],[11],[16],[37]   358 [17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance (4)                    
Fair value, ending balance (4) [11],[16],[37]   (4)                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 383 [10],[11],[12],[16]   644 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (6)                    
Fair value, ending balance (4) [11],[12],[16]   (6) [14],[15],[18]                
Investment, Identifier [Axis]: Logrhythm, Inc., First lien                      
Principal Amount or Par Value $ 4,196 [10],[11],[12]   $ 4,196 [14],[15],[17],[23]                
Spread 7.50% [11],[12]   7.50% [14],[15],[23] 7.50% [11],[12] 7.50% [11],[12] 7.50% [14],[15],[23] 7.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 4,196                    
Fair value, ending balance 4,127 [11],[12]   $ 4,196 [14],[15],[23]                
Investment, Identifier [Axis]: Logrhythm, Inc., First lien - Undrawn                      
Principal Amount or Par Value 420 [10],[11],[12],[16]   420 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance (7) [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: MRI Software LLC, First lien - Drawn                      
Principal Amount or Par Value $ 111 [10],[11],[12],[16]   $ 111 [14],[15],[17],[18]                
Spread 4.75% [11],[12],[16]   4.75% [14],[15],[18] 4.75% [11],[12],[16] 4.75% [11],[12],[16] 4.75% [14],[15],[18] 4.75% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 111                    
Fair value, ending balance 111 [11],[12],[16]   $ 111 [14],[15],[18]                
Investment, Identifier [Axis]: MRI Software LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     1,891                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: MRI Software LLC, First lien 1                      
Principal Amount or Par Value $ 21,373 [10],[11],[37]   $ 21,430 [14],[17],[38]                
Spread 4.75% [11],[37]   4.75% [14],[38] 4.75% [11],[37] 4.75% [11],[37] 4.75% [14],[38] 4.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 21,430                    
Fair value, ending balance 21,373 [11],[37]   $ 21,430 [14],[38]                
Investment, Identifier [Axis]: MRI Software LLC, First lien 2                      
Principal Amount or Par Value $ 7,571 [9],[10],[11],[12]   $ 7,591 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12]   4.75% [14],[15],[23] 4.75% [9],[11],[12] 4.75% [9],[11],[12] 4.75% [14],[15],[23] 4.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 7,591                    
Fair value, ending balance 7,571 [9],[11],[12]   $ 7,591 [14],[15],[23]                
Investment, Identifier [Axis]: MRI Software LLC, First lien 3                      
Principal Amount or Par Value $ 4,509 [10],[11],[19],[20]   $ 4,521 [14],[17],[21],[22]                
Spread 4.75% [11],[19],[20]   4.75% [14],[21],[22] 4.75% [11],[19],[20] 4.75% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 4,521                    
Fair value, ending balance 4,509 [11],[19],[20]   $ 4,521 [14],[21],[22]                
Investment, Identifier [Axis]: MRI Software LLC, First lien 4                      
Principal Amount or Par Value $ 3,099 [10],[11],[19],[20]   $ 3,107 [14],[17],[21],[22]                
Spread 4.75% [11],[19],[20]   4.75% [14],[21],[22] 4.75% [11],[19],[20] 4.75% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 3,107                    
Fair value, ending balance 3,099 [11],[19],[20]   $ 3,107 [14],[21],[22]                
Investment, Identifier [Axis]: MRI Software LLC, First lien 5                      
Principal Amount or Par Value $ 791 [9],[10],[11],[12]   $ 793 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12]   4.75% [14],[15],[23] 4.75% [9],[11],[12] 4.75% [9],[11],[12] 4.75% [14],[15],[23] 4.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 793                    
Fair value, ending balance 791 [9],[11],[12]   $ 793 [14],[15],[23]                
Investment, Identifier [Axis]: MRI Software LLC., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 1,891                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Michael Baker International, LLC, First lien                      
Principal Amount or Par Value [15],[17],[23]     $ 4,892                
Spread [15],[23]     4.75%     4.75% 4.75%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [15],[23] 4,910                    
Fair value, ending balance [15],[23]     $ 4,910                
Investment, Identifier [Axis]: Model N, Inc., First lien                      
Principal Amount or Par Value $ 44,107 [10],[11],[19],[20]   $ 44,218 [14],[17],[21],[22]                
Spread 4.75% [11],[19],[20]   5.00% [14],[21],[22] 4.75% [11],[19],[20] 4.75% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 43,997                    
Fair value, ending balance 43,886 [11],[19],[20]   $ 43,997 [14],[21],[22]                
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 4,825 [10],[11],[12],[16]   4,825 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (24)                    
Fair value, ending balance (24) [11],[12],[16]   (24) [14],[15],[18]                
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 9,047 [10],[11],[12],[16]   9,047 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (45)                    
Fair value, ending balance (45) [11],[12],[16]   (45) [14],[15],[18]                
Investment, Identifier [Axis]: NC Topco, LLC, First lien                      
Principal Amount or Par Value $ 5,879 [10],[11],[19],[20]   $ 5,853 [14],[17],[21],[22]                
Spread 2.50% [11],[19],[20],[29]   2.50% [14],[21],[22],[30] 2.50% [11],[19],[20],[29] 2.50% [11],[19],[20],[29] 2.50% [14],[21],[22],[30] 2.50% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 5,824                    
Fair value, ending balance 5,849 [11],[19],[20]   $ 5,824 [14],[21],[22]                
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 669 [10],[11],[12],[16]   669 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (3)                    
Fair value, ending balance (3) [11],[12],[16]   (3) [14],[15],[18]                
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 1,672 [10],[11],[12],[16]   1,672 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (8)                    
Fair value, ending balance (8) [11],[12],[16]   (8) [14],[15],[18]                
Investment, Identifier [Axis]: NHME Holdings Corp., Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[50] 0                    
Fair value, ending balance 0 [11],[12],[51]   0 [14],[15],[50]                
Investment, Identifier [Axis]: NHME Holdings Corp., Warrants                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[50] 0                    
Fair value, ending balance 0 [11],[12],[51]   0 [14],[15],[50]                
Investment, Identifier [Axis]: NM GP Holdco, LLC, Membership interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[31],[52] 322                    
Fair value, ending balance 383 [11],[13],[53]   322 [14],[31],[52]                
Investment, Identifier [Axis]: NM NL Holdings, L.P., Membership interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[31],[52] 104,512                    
Fair value, ending balance 105,211 [11],[13],[53]   104,512 [14],[31],[52]                
Investment, Identifier [Axis]: NM YI, LLC, Membership interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[52] 9,960                    
Fair value, ending balance 8,927 [11],[53]   9,960 [14],[52]                
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 1                      
Principal Amount or Par Value $ 19,259 [9],[10],[11],[12]   $ 19,259 [14],[15],[17],[23]                
Spread 6.09% [9],[11],[12]   6.09% [14],[15],[23] 6.09% [9],[11],[12] 6.09% [9],[11],[12] 6.09% [14],[15],[23] 6.09% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 19,259                    
Fair value, ending balance 19,259 [9],[11],[12]   $ 19,259 [14],[15],[23]                
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 2                      
Principal Amount or Par Value $ 5,012 [9],[10],[11],[12]   $ 5,012 [14],[15],[17],[23]                
Spread 6.09% [9],[11],[12]   6.09% [14],[15],[23] 6.09% [9],[11],[12] 6.09% [9],[11],[12] 6.09% [14],[15],[23] 6.09% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 5,012                    
Fair value, ending balance 5,012 [9],[11],[12]   $ 5,012 [14],[15],[23]                
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 3                      
Principal Amount or Par Value $ 4,913 [10],[11],[19],[20]   $ 4,913 [14],[17],[21],[22]                
Spread 6.09% [11],[19],[20]   6.09% [14],[21],[22] 6.09% [11],[19],[20] 6.09% [11],[19],[20] 6.09% [14],[21],[22] 6.09% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 4,913                    
Fair value, ending balance 4,913 [11],[19],[20]   $ 4,913 [14],[21],[22]                
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC, Membership interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[31] 160,000                    
Fair value, ending balance 160,000 [11],[12],[13]   160,000 [14],[15],[31]                
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC, Membership interest                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[31] 112,400                    
Fair value, ending balance 112,400 [11],[12],[13]   112,400 [14],[15],[31]                
Investment, Identifier [Axis]: National HME, Inc., Second lien                      
Principal Amount or Par Value 8,281 [10],[11],[12],[51]   8,281 [14],[15],[17],[50]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[50] 3,000                    
Fair value, ending balance $ 3,000 [11],[12],[51]   $ 3,000 [14],[15],[50]                
Investment, Identifier [Axis]: National HME, Inc., Second lien, Tranche A Term Loan                      
Investment, percentage of interest entitled to receive 20.00%   20.00% 20.00% 20.00% 20.00% 20.00%        
Spread 5.00%   5.00% 5.00% 5.00% 5.00% 5.00%        
Investment, Identifier [Axis]: National HME, Inc., Second lien, Tranche B Term Loan                      
Investment, percentage of interest entitled to receive 20.00%   20.00% 20.00% 20.00% 20.00% 20.00%        
Spread 6.00%   6.00% 6.00% 6.00% 6.00% 6.00%        
Investment, Identifier [Axis]: Nelipak Holding Company First lien 1                      
Principal Amount or Par Value     $ 17,109                
Investment, Identifier [Axis]: Nelipak Holding Company First lien 2                      
Principal Amount or Par Value     406                
Investment, Identifier [Axis]: Nelipak Holding Company First lien 3                      
Principal Amount or Par Value     6,638                
Investment, Identifier [Axis]: Nelipak Holding Company First lien 4                      
Principal Amount or Par Value     833                
Investment, Identifier [Axis]: Nelipak Holding Company, Drawn Revolver                      
Principal Amount or Par Value $ 226                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Drawn 1                      
Principal Amount or Par Value $ 1,306 [9],[10],[11],[12],[16],[54]   $ 1,097 [14],[15],[17],[18],[23],[55]                
Spread 5.50% [9],[11],[12],[16],[54]   5.50% [14],[15],[18],[23],[55] 5.50% [9],[11],[12],[16],[54] 5.50% [9],[11],[12],[16],[54] 5.50% [14],[15],[18],[23],[55] 5.50% [14],[15],[18],[23],[55]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23],[55] $ 1,097                    
Fair value, ending balance $ 1,306 [9],[11],[12],[16],[54]   $ 1,097 [14],[15],[18],[23],[55]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Drawn 2                      
Principal Amount or Par Value     $ 392 [14],[15],[17],[18] € 209 [10],[11],[12],[16]              
Spread 5.50% [11],[12],[16]   5.50% [14],[15],[18] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[15],[18] 5.50% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 405                    
Fair value, ending balance 226 [11],[12],[16]   $ 405 [14],[15],[18]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 1                      
Principal Amount or Par Value 3,501 [10],[11],[12],[16]   3,501 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 2                      
Principal Amount or Par Value     6,411 [14],[15],[17],[18],[23],[55] € 6,411 [9],[10],[11],[12],[16],[54]              
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23],[55] 0                    
Fair value, ending balance 0 [9],[11],[12],[16],[54]   0 [14],[15],[18],[23],[55]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 3                      
Principal Amount or Par Value     804 [14],[15],[17],[18],[23],[55] 987 [9],[10],[11],[12],[16],[54]              
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23],[55] 0                    
Fair value, ending balance 0 [9],[11],[12],[16],[54]   0 [14],[15],[18],[23],[55]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 4                      
Principal Amount or Par Value 1,306 [10],[11],[12],[16]   1,515 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   $ 0 [14],[15],[18]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 1                      
Principal Amount or Par Value $ 17,830     € 16,482 [9],[10],[11],[12],[54]   € 16,523 [14],[15],[17],[23],[55]          
Spread 5.50% [9],[11],[12],[54]   5.50% [14],[15],[23],[55] 5.50% [9],[11],[12],[54] 5.50% [9],[11],[12],[54] 5.50% [14],[15],[23],[55] 5.50% [14],[15],[23],[55]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[55] $ 17,108                    
Fair value, ending balance 17,830 [9],[11],[12],[54]   $ 17,108 [14],[15],[23],[55]                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 2                      
Principal Amount or Par Value $ 9,001 [10],[11],[19],[20]   $ 9,023 [14],[17],[21],[22]                
Spread 5.50% [11],[19],[20]   5.50% [14],[21],[22] 5.50% [11],[19],[20] 5.50% [11],[19],[20] 5.50% [14],[21],[22] 5.50% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 9,023                    
Fair value, ending balance 9,001 [11],[19],[20]   $ 9,023 [14],[21],[22]                
Investment, Identifier [Axis]: Nelipak Holding Company, Undrawn Delayed Draw Term Loan                      
Principal Amount or Par Value 6,935                    
Investment, Identifier [Axis]: Nelipak Holding Company, Undrawn Revolver                      
Principal Amount or Par Value 1,068                    
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 1                      
Principal Amount or Par Value 47,496 [10],[11],[20]   46,068 [14],[17],[22]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 46,068                    
Fair value, ending balance 47,496 [11],[20]   46,068 [14],[22]                
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 2                      
Principal Amount or Par Value 36,948 [9],[10],[11],[12]   33,155 [14],[15],[17],[23]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 33,155                    
Fair value, ending balance 36,948 [9],[11],[12]   33,155 [14],[15],[23]                
Investment, Identifier [Axis]: New Benevis Holdco, Inc., Subordinated                      
Principal Amount or Par Value 24,535 [10],[11],[12]   23,814 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 19,051                    
Fair value, ending balance 19,628 [11],[12]   19,051 [14],[15]                
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 28,481                    
Fair value, ending balance 27,697 [11],[20]   28,481 [14],[22]                
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 13,347                    
Fair value, ending balance 12,980 [11],[12]   13,347 [14],[15]                
Investment, Identifier [Axis]: New Permian Holdco, Inc., Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 18,900                    
Fair value, ending balance 16,000 [11],[12]   18,900 [14],[15]                
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien                      
Principal Amount or Par Value $ 23,336 [9],[10],[11],[12]   $ 23,336 [14],[15],[17],[23]                
Spread 9.00% [9],[11],[12]   9.00% [14],[15],[23] 9.00% [9],[11],[12] 9.00% [9],[11],[12] 9.00% [14],[15],[23] 9.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 23,336                    
Fair value, ending balance 23,336 [9],[11],[12]   $ 23,336 [14],[15],[23]                
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Drawn                      
Principal Amount or Par Value $ 22,184 [9],[10],[11],[12],[16]   $ 20,840 [14],[15],[17],[18],[23]                
Spread 6.00% [9],[11],[12],[16]   6.00% [14],[15],[18],[23] 6.00% [9],[11],[12],[16] 6.00% [9],[11],[12],[16] 6.00% [14],[15],[18],[23] 6.00% [14],[15],[18],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] $ 20,840                    
Fair value, ending balance 22,184 [9],[11],[12],[16]   $ 20,840 [14],[15],[18],[23]                
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Undrawn                      
Principal Amount or Par Value 9,710 [10],[11],[12],[16]   1,055 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Next Holdco, LLC, First lien                      
Principal Amount or Par Value $ 6,312 [10],[11],[19],[20]   $ 3,494 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.75% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.75% [14],[21],[22] 5.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 3,494                    
Fair value, ending balance 6,312 [11],[19],[20]   $ 3,494 [14],[21],[22]                
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [14],[15],[17],[18]     903                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     339                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [10],[11],[12],[16] 903                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value [10],[11],[12],[16] 339                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Undrawn                      
Principal Amount or Par Value 646 [10],[11],[12],[16]   880 [14],[15],[17],[18],[27]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (71)                    
Fair value, ending balance (99) [11],[12],[16]   (71) [14],[15],[18]                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 1                      
Principal Amount or Par Value $ 10,096 [9],[10],[11],[12]   $ 10,058 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12],[29]   4.75% [14],[15],[23],[30] 4.75% [9],[11],[12],[29] 4.75% [9],[11],[12],[29] 4.75% [14],[15],[23],[30] 4.75% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 9,241                    
Fair value, ending balance 8,553 [9],[11],[12]   $ 9,241 [14],[15],[23]                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 2                      
Principal Amount or Par Value $ 9,970 [9],[10],[11],[12]   $ 9,932 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12],[29]   4.75% [14],[15],[23],[30] 4.75% [9],[11],[12],[29] 4.75% [9],[11],[12],[29] 4.75% [14],[15],[23],[30] 4.75% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 9,126                    
Fair value, ending balance 8,446 [9],[11],[12]   $ 9,126 [14],[15],[23]                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 3                      
Principal Amount or Par Value $ 880 [9],[10],[11],[12]   $ 877 [14],[15],[17],[23]                
Spread 4.75% [9],[11],[12],[29]   4.75% [14],[15],[23],[30] 4.75% [9],[11],[12],[29] 4.75% [9],[11],[12],[29] 4.75% [14],[15],[23],[30] 4.75% [14],[15],[23],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 805                    
Fair value, ending balance 745 [9],[11],[12]   $ 805 [14],[15],[23]                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien Drawn                      
Principal Amount or Par Value [10],[11],[12],[16] $ 235                    
Spread [11],[12],[16] 6.75%     6.75% 6.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 199                    
Investment, Identifier [Axis]: OA Buyer, Inc., First lien                      
Number of investments held | investment 3   3 3 3 3 3        
Investment, Identifier [Axis]: OA Buyer, Inc., First lien - Undrawn                      
Principal Amount or Par Value $ 3,600 [10],[11],[12],[16]   $ 3,600 [14],[15],[17],[18],[56]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[56] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18],[56]                
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 1                      
Principal Amount or Par Value $ 31,434 [10],[11],[19],[20]   $ 31,513 [14],[17],[21],[22]                
Spread 4.50% [11],[19],[20]   4.75% [14],[21],[22] 4.50% [11],[19],[20] 4.50% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 31,513                    
Fair value, ending balance 31,434 [11],[19],[20]   $ 31,513 [14],[21],[22]                
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 2                      
Principal Amount or Par Value $ 27,355 [10],[11],[19],[20]   $ 27,425 [14],[17],[21],[22]                
Spread 4.50% [11],[19],[20]   4.75% [14],[21],[22] 4.50% [11],[19],[20] 4.50% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 27,425                    
Fair value, ending balance 27,355 [11],[19],[20]   $ 27,425 [14],[21],[22]                
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 3                      
Principal Amount or Par Value $ 1,732 [10],[11],[19],[20]   $ 1,736 [14],[17],[21],[22]                
Spread 4.50% [11],[19],[20]   4.75% [14],[21],[22] 4.50% [11],[19],[20] 4.50% [11],[19],[20] 4.75% [14],[21],[22] 4.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 1,736                    
Fair value, ending balance 1,732 [11],[19],[20]   $ 1,736 [14],[21],[22]                
Investment, Identifier [Axis]: OA Topco, L.P., Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[56] 7,646                    
Fair value, ending balance 14,980 [11],[12],[57]   7,646 [14],[15],[56]                
Investment, Identifier [Axis]: OEConnection LLC, First lien                      
Principal Amount or Par Value [14],[17],[21],[22]     $ 46,430                
Spread [14],[21],[22]     5.00%     5.00% 5.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] 46,430                    
Fair value, ending balance [14],[21],[22]     $ 46,430                
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 1                      
Principal Amount or Par Value [14],[15],[17],[18]     8,101                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 2                      
Principal Amount or Par Value [14],[15],[17],[18]     5,063                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: OEConnection LLC, First lien 1                      
Principal Amount or Par Value [10],[11],[19],[20] $ 46,313                    
Spread [11],[19],[20] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[19],[20] $ 46,313                    
Investment, Identifier [Axis]: OEConnection LLC, First lien 2                      
Principal Amount or Par Value [9],[10],[11],[12] $ 8,081                    
Spread [9],[11],[12] 5.00%     5.00% 5.00%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 8,081                    
Investment, Identifier [Axis]: OEConnection LLC., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 5,063                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien - Undrawn                      
Principal Amount or Par Value 1,860 [10],[11],[12],[16]   1,860 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 1                      
Principal Amount or Par Value $ 14,880 [9],[10],[11],[12]   $ 7,440 [14],[17],[21],[22]                
Spread 7.75% [9],[11],[12]   7.75% [14],[21],[22] 7.75% [9],[11],[12] 7.75% [9],[11],[12] 7.75% [14],[21],[22] 7.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,440                    
Fair value, ending balance 14,880 [9],[11],[12]   $ 7,440 [14],[21],[22]                
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 2                      
Principal Amount or Par Value $ 5,454 [9],[10],[11],[12]   $ 7,440 [14],[15],[17]                
Spread 7.25% [9],[11],[12]   7.75% [14],[15] 7.25% [9],[11],[12] 7.25% [9],[11],[12] 7.75% [14],[15] 7.75% [14],[15]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 7,440                    
Fair value, ending balance 5,454 [9],[11],[12]   $ 7,440 [14],[15]                
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 3                      
Principal Amount or Par Value [14],[15],[17]     $ 5,454                
Spread [14],[15]     7.25%     7.25% 7.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 5,454                    
Fair value, ending balance [14],[15]     $ 5,454                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien                      
Principal Amount or Par Value [14],[17],[25]     $ 18,161                
Spread [14],[25]     5.50%     5.50% 5.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] 18,161                    
Fair value, ending balance [14],[25]     $ 18,161                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 244 [10],[11],[12],[16]   $ 2,360 [14],[17],[18],[25]                
Spread 5.50% [11],[12],[16]   5.50% [14],[18],[25] 5.50% [11],[12],[16] 5.50% [11],[12],[16] 5.50% [14],[18],[25] 5.50% [14],[18],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[25] $ 2,360                    
Fair value, ending balance 244 [11],[12],[16]   $ 2,360 [14],[18],[25]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,586 [10],[11],[12],[16]   1,865 [14],[17],[18],[25]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[25] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[18],[25]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 1,865 [10],[11],[16],[24]   1,830 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[16],[24]   0 [14],[15],[18]                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien 1                      
Principal Amount or Par Value [10],[11],[24] $ 20,469                    
Spread [11],[24] 5.50%     5.50% 5.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[24] $ 20,469                    
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien 2                      
Principal Amount or Par Value [9],[10],[11],[12] $ 513                    
Spread [9],[11],[12] 5.50%     5.50% 5.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 513                    
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien - Undrawn                      
Principal Amount or Par Value 486 [10],[11],[12],[16]   486 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 1                      
Principal Amount or Par Value $ 22,331 [10],[11],[24]   $ 22,388 [14],[17],[25]                
Spread 5.75% [11],[24]   5.75% [14],[25] 5.75% [11],[24] 5.75% [11],[24] 5.75% [14],[25] 5.75% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 22,388                    
Fair value, ending balance 22,331 [11],[24]   $ 22,388 [14],[25]                
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 2                      
Principal Amount or Par Value $ 8,238 [10],[11],[19],[20]   $ 8,258 [14],[17],[21],[22]                
Spread 5.75% [11],[19],[20]   5.75% [14],[21],[22] 5.75% [11],[19],[20] 5.75% [11],[19],[20] 5.75% [14],[21],[22] 5.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 8,258                    
Fair value, ending balance 8,238 [11],[19],[20]   $ 8,258 [14],[21],[22]                
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                      
Principal Amount or Par Value $ 14,500 [10],[11],[12]   $ 14,500 [14],[15],[17]               $ 20,000
Spread 0.00% [11],[12]   0.00% [14],[15] 0.00% [11],[12] 0.00% [11],[12] 0.00% [14],[15] 0.00% [14],[15]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 6,525                    
Fair value, ending balance 6,525 [11],[12]   $ 6,525 [14],[15]                
Investment, Identifier [Axis]: PPVA Fund, L.P., Collateralized Financing                      
Principal Amount or Par Value $ 0 [10],[33],[58]   $ 0 [17],[59],[60]                
Spread 0.00% [33],[58]   0.00% [59],[60] 0.00% [33],[58] 0.00% [33],[58] 0.00% [59],[60] 0.00% [59],[60]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [59],[60] $ 0                    
Fair value, ending balance 0 [33],[58]   $ 0 [59],[60]                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien                      
Principal Amount or Par Value $ 7,635 [10],[11],[19],[20]   $ 7,654 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,635                    
Fair value, ending balance 7,616 [11],[19],[20]   $ 7,635 [14],[21],[22]                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Drawn                      
Principal Amount or Par Value [14],[15],[17],[18],[23]     $ 258                
Spread [14],[15],[18],[23]     5.25%     5.25% 5.25%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] 258                    
Fair value, ending balance [14],[15],[18],[23]     $ 258                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Drawn 1                      
Principal Amount or Par Value [10],[11],[12],[16] $ 617                    
Spread [11],[12],[16] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] $ 615                    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Drawn 2                      
Principal Amount or Par Value [9],[10],[11],[12],[16] $ 210                    
Spread [9],[11],[12],[16] 5.25%     5.25% 5.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12],[16] $ 210                    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 583 [10],[11],[12],[16]   643 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (2)                    
Fair value, ending balance (1) [11],[12],[16]   (2) [14],[15],[18]                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 691 [10],[11],[12],[16]   1,201 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (3)                    
Fair value, ending balance (2) [11],[12],[16]   (3) [14],[15],[18]                
Investment, Identifier [Axis]: Permian Trust, First lien                      
Principal Amount or Par Value 3,409 [10],[11],[12]   3,409 [14],[15],[17],[59]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[59] 0                    
Fair value, ending balance 0 [11],[12]   0 [14],[15],[59]                
Investment, Identifier [Axis]: Permian Trust, Trust Claim                      
Principal Amount or Par Value 247 [10],[11],[61]   247 [14],[17],[59],[62]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[59],[62] 0                    
Fair value, ending balance 0 [11],[61]   0 [14],[59],[62]                
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien                      
Principal Amount or Par Value $ 28,074 [9],[10],[11],[12]   $ 28,145 [14],[17],[21],[22]                
Spread 6.00% [9],[11],[12]   6.00% [14],[21],[22] 6.00% [9],[11],[12] 6.00% [9],[11],[12] 6.00% [14],[21],[22] 6.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 28,145                    
Fair value, ending balance 27,614 [9],[11],[12]   $ 28,145 [14],[21],[22]                
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 1                      
Principal Amount or Par Value 3,708 [10],[11],[12],[16]   3,708 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance (61) [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 2                      
Principal Amount or Par Value 3,708 [10],[11],[12],[16]   3,708 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance $ (61) [11],[12],[16]   $ 0 [14],[15],[18]                
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien                      
Number of investments held | investment 2   2 2 2 2 2        
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18],[63]     $ 3,284                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[63] $ 0                    
Fair value, ending balance [14],[15],[18],[63]     0                
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 1                      
Principal Amount or Par Value $ 23,089 [9],[10],[11],[12]   $ 23,089 [14],[15],[17],[23]                
Spread 6.00% [9],[11],[12]   6.50% [14],[15],[23] 6.00% [9],[11],[12] 6.00% [9],[11],[12] 6.50% [14],[15],[23] 6.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 23,089                    
Fair value, ending balance 23,089 [9],[11],[12]   $ 23,089 [14],[15],[23]                
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 2                      
Principal Amount or Par Value $ 2,374 [9],[10],[11],[12]   $ 2,374 [14],[15],[17],[23]                
Spread 6.00% [9],[11],[12]   6.50% [14],[15],[23] 6.00% [9],[11],[12] 6.00% [9],[11],[12] 6.50% [14],[15],[23] 6.50% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 2,374                    
Fair value, ending balance 2,374 [9],[11],[12]   $ 2,374 [14],[15],[23]                
Investment, Identifier [Axis]: Pioneer Buyer I, LLC., First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16],[64] 3,284                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16],[64] 0                    
Investment, Identifier [Axis]: Pioneer Topco I, L.P., Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[63],[65] 2,000                    
Fair value, ending balance 2,000 [11],[64],[66]   2,000 [14],[63],[65]                
Investment, Identifier [Axis]: Planview Parent, Inc., Second lien                      
Principal Amount or Par Value $ 9,231 [9],[10],[12]   $ 9,231 [17],[21],[22]                
Spread 5.75% [9],[12]   5.75% [21],[22] 5.75% [9],[12] 5.75% [9],[12] 5.75% [21],[22] 5.75% [21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [21],[22] $ 9,208                    
Fair value, ending balance 9,196 [9],[12]   $ 9,208 [21],[22]                
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien                      
Principal Amount or Par Value $ 22,331 [10],[11],[24]   $ 22,387 [14],[17],[25]                
Spread 4.75% [11],[24]   4.75% [14],[25] 4.75% [11],[24] 4.75% [11],[24] 4.75% [14],[25] 4.75% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 22,387                    
Fair value, ending balance 22,331 [11],[24]   $ 22,387 [14],[25]                
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien - Undrawn                      
Principal Amount or Par Value 4,289 [10],[11],[12],[16]   4,289 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien                      
Principal Amount or Par Value $ 10,493 [10],[11],[37]   $ 10,519 [14],[17],[38]                
Spread 5.25% [11],[37]   5.25% [14],[38] 5.25% [11],[37] 5.25% [11],[37] 5.25% [14],[38] 5.25% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 10,519                    
Fair value, ending balance 10,493 [11],[37]   $ 10,519 [14],[38]                
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     1,510                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 1,510                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Project Essential Super Parent, Inc., Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 14,833                    
Fair value, ending balance 15,548 [11],[12]   14,833 [14],[15]                
Investment, Identifier [Axis]: RLG Holdings, LLC, First lien                      
Principal Amount or Par Value $ 3,959 [10],[19],[20]   $ 3,970 [17],[21],[22]                
Spread 5.00% [19],[20]   5.00% [21],[22] 5.00% [19],[20] 5.00% [19],[20] 5.00% [21],[22] 5.00% [21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [21],[22] $ 3,934                    
Fair value, ending balance 3,660 [19],[20]   $ 3,934 [21],[22]                
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 1                      
Principal Amount or Par Value 152 [10],[11],[20]   $ 152 [14],[17],[22]                
Spread [14],[22]     0.00%     0.00% 0.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 152                    
Fair value, ending balance 152 [11],[20]   $ 152 [14],[22]                
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 2                      
Principal Amount or Par Value 52 [10],[11],[12]   $ 52 [14],[15],[17]                
Spread [14],[15]     0.00%     0.00% 0.00%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 52                    
Fair value, ending balance 52 [11],[12]   $ 52 [14],[15]                
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 327                    
Fair value, ending balance 272 [11],[20]   327 [14],[22]                
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 112                    
Fair value, ending balance 93 [11],[12]   112 [14],[15]                
Investment, Identifier [Axis]: Riskonnect Parent, LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     6,349                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Riskonnect Parent, LLC, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 6,349                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     384                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Drawn                      
Principal Amount or Par Value $ 128 [10],[11],[12],[16]   $ 128 [14],[15],[17],[18]                
Spread 4.25% [11],[12],[16]   4.25% [14],[15],[18] 4.25% [11],[12],[16] 4.25% [11],[12],[16] 4.25% [14],[15],[18] 4.25% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 128                    
Fair value, ending balance 128 [11],[12],[16]   $ 128 [14],[15],[18]                
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 384                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 1                      
Principal Amount or Par Value $ 7,427 [10],[11],[19],[20]   $ 7,446 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,446                    
Fair value, ending balance 7,427 [11],[19],[20]   $ 7,446 [14],[21],[22]                
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 2                      
Principal Amount or Par Value $ 1,519 [9],[10],[11],[12]   $ 1,523 [14],[15],[17],[23]                
Spread 5.25% [9],[11],[12]   5.25% [14],[15],[23] 5.25% [9],[11],[12] 5.25% [9],[11],[12] 5.25% [14],[15],[23] 5.25% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 1,523                    
Fair value, ending balance 1,519 [9],[11],[12]   $ 1,523 [14],[15],[23]                
Investment, Identifier [Axis]: Sierra Enterprises, LLC                      
Principal Amount or Par Value $ 42,345 [9],[10],[11],[12]   $ 42,450 [14],[15],[17],[23]                
Spread 6.25% [9],[11],[12]   6.75% [14],[15],[23] 6.25% [9],[11],[12] 6.25% [9],[11],[12] 6.75% [14],[15],[23] 6.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 42,450                    
Fair value, ending balance 42,345 [9],[11],[12]   $ 42,450 [14],[15],[23]                
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 1,799                    
Fair value, ending balance 1,799 [11],[20]   1,799 [14],[22]                
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 201                    
Fair value, ending balance 201 [11],[12]   201 [14],[15]                
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 235 [9],[10],[11],[12],[16]   $ 324 [14],[15],[17],[18],[23]                
Spread 4.00% [9],[11],[12],[16]   4.00% [14],[15],[18],[23] 4.00% [9],[11],[12],[16] 4.00% [9],[11],[12],[16] 4.00% [14],[15],[18],[23] 4.00% [14],[15],[18],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18],[23] $ 315                    
Fair value, ending balance 228 [9],[11],[12],[16]   $ 315 [14],[15],[18],[23]                
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Undrawn                      
Principal Amount or Par Value 324 [10],[11],[12],[16]   235 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (7)                    
Fair value, ending balance (9) [11],[12],[16]   (7) [14],[15],[18]                
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 1                      
Principal Amount or Par Value $ 10,220 [10],[11],[19],[20]   $ 10,247 [14],[17],[21],[22]                
Spread 5.75% [11],[19],[20]   5.75% [14],[21],[22] 5.75% [11],[19],[20] 5.75% [11],[19],[20] 5.75% [14],[21],[22] 5.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 9,953                    
Fair value, ending balance 9,927 [11],[19],[20]   $ 9,953 [14],[21],[22]                
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 2                      
Principal Amount or Par Value $ 77 [9],[10],[11],[12]   $ 77 [14],[15],[17],[23]                
Spread 5.75% [9],[11],[12]   5.75% [14],[15],[23] 5.75% [9],[11],[12] 5.75% [9],[11],[12] 5.75% [14],[15],[23] 5.75% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 75                    
Fair value, ending balance 75 [9],[11],[12]   $ 75 [14],[15],[23]                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] 16,450                    
Fair value, ending balance 16,815 [11],[24]   16,450 [14],[25]                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] 5,671                    
Fair value, ending balance 5,797 [9],[11],[12]   5,671 [14],[15],[23]                
Investment, Identifier [Axis]: Syndigo LLC, Second lien 1                      
Principal Amount or Par Value $ 22,500 [10],[11],[24]   $ 22,500 [14],[17],[25]                
Spread 8.00% [11],[24]   8.00% [14],[25] 8.00% [11],[24] 8.00% [11],[24] 8.00% [14],[25] 8.00% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 22,500                    
Fair value, ending balance 22,500 [11],[24]   $ 22,500 [14],[25]                
Investment, Identifier [Axis]: Syndigo LLC, Second lien 2                      
Principal Amount or Par Value $ 5,697 [10],[11],[19],[20]   $ 5,697 [14],[17],[21],[22]                
Spread 8.00% [11],[19],[20]   8.00% [14],[21],[22] 8.00% [11],[19],[20] 8.00% [11],[19],[20] 8.00% [14],[21],[22] 8.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 5,697                    
Fair value, ending balance 5,697 [11],[19],[20]   $ 5,697 [14],[21],[22]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien - Undrawn                      
Principal Amount or Par Value 2,695 [10],[11],[12],[16]   2,695 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 1                      
Principal Amount or Par Value $ 12,475 [10],[11],[20]   12,327 [14],[17],[22]                
Spread [11],[20],[29] 3.25%     3.25% 3.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] $ 10,402                    
Fair value, ending balance 10,526 [11],[20]   10,402 [14],[22]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 2                      
Principal Amount or Par Value $ 10,043 [9],[10],[11],[12]   9,925 [14],[15],[17]                
Spread [9],[11],[12],[29] 3.25%     3.25% 3.25%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 8,374                    
Fair value, ending balance 8,474 [9],[11],[12]   8,374 [14],[15]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 3                      
Principal Amount or Par Value $ 2,863 [9],[10],[11],[12]   $ 2,843 [14],[15],[17]                
Spread 3.00% [9],[11],[12],[29]   2.00% [14],[15],[30] 3.00% [9],[11],[12],[29] 3.00% [9],[11],[12],[29] 2.00% [14],[15],[30] 2.00% [14],[15],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] $ 2,351                    
Fair value, ending balance 2,368 [9],[11],[12]   $ 2,351 [14],[15]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 1                      
Principal Amount or Par Value 311 [10],[11],[20]   302 [14],[17],[22]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[22] 302                    
Fair value, ending balance 311 [11],[20]   302 [14],[22]                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 2                      
Principal Amount or Par Value 300 [10],[11],[12]   291 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 291                    
Fair value, ending balance 300 [11],[12]   291 [14],[15]                
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Ordinary shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 59,978                    
Fair value, ending balance 59,136 [11],[12]   59,978 [14],[15]                
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Preferred shares                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 9,352                    
Fair value, ending balance 7,808 [11],[12]   $ 9,352 [14],[15]                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien                      
Principal Amount or Par Value | £ [14],[15],[17],[23],[31]             £ 19,418        
Spread [14],[15],[23],[30],[31]     3.50%     3.50% 3.50%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[31] $ 19,321                    
Fair value, ending balance [14],[15],[23],[31]     $ 19,321                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien                      
Principal Amount or Par Value | £ [9],[10],[11],[12]         £ 19,617            
Spread [9],[11],[12],[29] 3.50%     3.50% 3.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [9],[11],[12] $ 19,519                    
Investment, Identifier [Axis]: TigerConnect, Inc., First lien                      
Principal Amount or Par Value $ 29,868 [9],[10],[11],[12]   $ 29,868 [14],[17],[21],[22]                
Spread 3.38% [9],[11],[12],[29]   3.38% [14],[21],[22],[30] 3.38% [9],[11],[12],[29] 3.38% [9],[11],[12],[29] 3.38% [14],[21],[22],[30] 3.38% [14],[21],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 29,868                    
Fair value, ending balance 29,868 [9],[11],[12]   $ 29,868 [14],[21],[22]                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 2,724 [10],[11],[16],[20]   $ 2,440 [14],[17],[18],[22]                
Spread 3.38% [11],[16],[20],[29]   3.38% [14],[18],[22],[30] 3.38% [11],[16],[20],[29] 3.38% [11],[16],[20],[29] 3.38% [14],[18],[22],[30] 3.38% [14],[18],[22],[30]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[22] $ 2,440                    
Fair value, ending balance 2,724 [11],[16],[20]   $ 2,440 [14],[18],[22]                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 1,017 [10],[11],[16],[20]   1,301 [14],[17],[18],[22]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[22] 0                    
Fair value, ending balance 0 [11],[16],[20]   0 [14],[18],[22]                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 4,267 [10],[11],[12],[16]   4,267 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 1                      
Principal Amount or Par Value 95 [10],[11],[16],[19],[20]   785 [14],[17],[18],[21],[22]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[18],[21],[22] 0                    
Fair value, ending balance 0 [11],[16],[19],[20]   0 [14],[18],[21],[22]                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 2                      
Principal Amount or Par Value 1,501 [10],[11],[12],[16]   1,501 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 1                      
Principal Amount or Par Value $ 15,382 [10],[11],[19],[20]   $ 15,382 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 15,382                    
Fair value, ending balance 15,382 [11],[19],[20]   $ 15,382 [14],[21],[22]                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 2                      
Principal Amount or Par Value $ 4,467 [10],[11],[19],[20]   $ 4,467 [14],[17],[21],[22]                
Spread 5.25% [11],[19],[20]   5.25% [14],[21],[22] 5.25% [11],[19],[20] 5.25% [11],[19],[20] 5.25% [14],[21],[22] 5.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 4,467                    
Fair value, ending balance 4,467 [11],[19],[20]   $ 4,467 [14],[21],[22]                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien Drawn                      
Principal Amount or Par Value [10],[11],[16],[19],[20] $ 690                    
Spread [11],[16],[19],[20] 4.50%     4.50% 4.50%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[16],[19],[20] $ 690                    
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien - Undrawn                      
Principal Amount or Par Value 893 [10],[11],[12],[16]   893 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance 0 [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 1                      
Principal Amount or Par Value $ 6,966 [9],[10],[11],[12]   $ 6,984 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 6,984                    
Fair value, ending balance 6,966 [9],[11],[12]   $ 6,984 [14],[15],[23]                
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 2                      
Principal Amount or Par Value $ 5,527 [10],[11],[19],[20]   $ 5,541 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 5,541                    
Fair value, ending balance 5,527 [11],[19],[20]   $ 5,541 [14],[21],[22]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance 0                    
Fair value, ending balance 0 [11],[20]   0                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 0                    
Fair value, ending balance 0 [11],[12]   0 [14],[15]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 1                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 20,646                    
Fair value, ending balance 45,347 [11],[12]   20,646 [14],[15]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 2                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 12,682                    
Fair value, ending balance 21,388 [11],[12]   12,682 [14],[15]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 3                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[59] 3,080                    
Fair value, ending balance 0 [11],[20]   3,080 [14],[15],[59]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 4                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [22],[59] 0                    
Fair value, ending balance 0 [11],[12]   0 [22],[59]                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 5                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[59] 0                    
Fair value, ending balance [14],[15],[59]     0                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 1                      
Principal Amount or Par Value [14],[15],[17]     15,608                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 15,459                    
Fair value, ending balance [14],[15]     15,459                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 2                      
Principal Amount or Par Value [14],[15],[17]     6,919                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 6,853                    
Fair value, ending balance [14],[15]     6,853                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Warrants                      
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 48,804                    
Fair value, ending balance [14],[15]     48,804                
Investment, Identifier [Axis]: Viper Bidco,Inc., First lien                      
Principal Amount or Par Value 15,503                    
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien                      
Principal Amount or Par Value $ 12,000 [9],[10],[11],[12],[54]   $ 12,030 [14],[15],[17],[23],[55]                
Spread 5.00% [9],[11],[12],[54]   5.00% [14],[15],[23],[55] 5.00% [9],[11],[12],[54] 5.00% [9],[11],[12],[54] 5.00% [14],[15],[23],[55] 5.00% [14],[15],[23],[55]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23],[55] $ 14,981                    
Fair value, ending balance 15,425 [9],[11],[12],[54]   $ 14,981 [14],[15],[23],[55]                
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 1                      
Principal Amount or Par Value 4,150 [10],[11],[12],[16]   4,150 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance (21) [11],[12],[16]   0 [14],[15],[18]                
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 2                      
Principal Amount or Par Value 3,320 [10],[11],[12],[16]   3,320 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (17)                    
Fair value, ending balance (17) [11],[12],[16]   (17) [14],[15],[18]                
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien 1                      
Principal Amount or Par Value     15,057                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn                      
Principal Amount or Par Value [14],[15],[17],[18]     2,040                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] 0                    
Fair value, ending balance [14],[15],[18]     0                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 1                      
Principal Amount or Par Value $ 15,553 [10],[11],[19],[20]   $ 15,593 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 15,593                    
Fair value, ending balance 15,553 [11],[19],[20]   $ 15,593 [14],[21],[22]                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 2                      
Principal Amount or Par Value $ 11,878 [9],[10],[11],[12]   $ 11,908 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 11,908                    
Fair value, ending balance 11,878 [9],[11],[12]   $ 11,908 [14],[15],[23]                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 3                      
Principal Amount or Par Value $ 6,642 [10],[11],[19],[20]   $ 6,659 [14],[17],[21],[22]                
Spread 5.00% [11],[19],[20]   5.00% [14],[21],[22] 5.00% [11],[19],[20] 5.00% [11],[19],[20] 5.00% [14],[21],[22] 5.00% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 6,659                    
Fair value, ending balance 6,642 [11],[19],[20]   $ 6,659 [14],[21],[22]                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 4                      
Principal Amount or Par Value $ 1,225 [9],[10],[11],[12]   $ 1,228 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 1,228                    
Fair value, ending balance 1,225 [9],[11],[12]   $ 1,228 [14],[15],[23]                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 5                      
Principal Amount or Par Value $ 822 [9],[10],[11],[12]   $ 824 [14],[15],[17],[23]                
Spread 5.00% [9],[11],[12]   5.00% [14],[15],[23] 5.00% [9],[11],[12] 5.00% [9],[11],[12] 5.00% [14],[15],[23] 5.00% [14],[15],[23]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[23] $ 824                    
Fair value, ending balance 822 [9],[11],[12]   $ 824 [14],[15],[23]                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, LLC, First lien - Undrawn                      
Principal Amount or Par Value [10],[11],[12],[16] 2,040                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [11],[12],[16] 0                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, Subordinated                      
Principal Amount or Par Value 4,235 [10],[11],[12]   4,231 [14],[15],[17]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15] 4,231                    
Fair value, ending balance 4,235 [11],[12]   4,231 [14],[15]                
Investment, Identifier [Axis]: Xactly Corporation, First lien                      
Principal Amount or Par Value $ 22,500 [10],[11],[24]   $ 22,500 [14],[17],[25]                
Spread 6.25% [11],[24]   6.25% [14],[25] 6.25% [11],[24] 6.25% [11],[24] 6.25% [14],[25] 6.25% [14],[25]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[25] $ 22,250                    
Fair value, ending balance 22,286 [11],[24]   $ 22,250 [14],[25]                
Investment, Identifier [Axis]: Xactly Corporation, First lien - Undrawn                      
Principal Amount or Par Value 992 [10],[11],[12],[16]   992 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (11)                    
Fair value, ending balance (9) [11],[12],[16]   (11) [14],[15],[18]                
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien                      
Principal Amount or Par Value $ 21,825 [10],[11],[37]   $ 21,825 [14],[17],[38]                
Spread 4.75% [11],[37]   4.75% [14],[38] 4.75% [11],[37] 4.75% [11],[37] 4.75% [14],[38] 4.75% [14],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[38] $ 21,825                    
Fair value, ending balance 21,825 [11],[37]   $ 21,825 [14],[38]                
Investment, Identifier [Axis]: e Research Technology, Inc., First lien - Undrawn 1                      
Principal Amount or Par Value [10],[12],[16] 1,889                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] (9)                    
Investment, Identifier [Axis]: e Research Technology, Inc., First lien - Undrawn 2                      
Principal Amount or Par Value [10],[12],[16] 2,040                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] (11)                    
Investment, Identifier [Axis]: e Research Technology, Inc., First lien - Undrawn 3                      
Principal Amount or Par Value [10],[12],[16] 1,074                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] (11)                    
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien                      
Principal Amount or Par Value [10],[12] $ 11,380                    
Spread [12] 4.75%     4.75% 4.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12] $ 11,266                    
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Drawn                      
Principal Amount or Par Value [10],[12],[16] $ 107                    
Spread [12],[16] 4.75%     4.75% 4.75%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, ending balance [12],[16] $ 107                    
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Drawn                      
Principal Amount or Par Value $ 388 [10],[11],[12],[16]   $ 706 [14],[15],[17],[18]                
Spread 5.75% [11],[12],[16]   5.75% [14],[15],[18] 5.75% [11],[12],[16] 5.75% [11],[12],[16] 5.75% [14],[15],[18] 5.75% [14],[15],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] $ 701                    
Fair value, ending balance 383 [11],[12],[16]   $ 701 [14],[15],[18]                
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn                      
Principal Amount or Par Value 3,142 [10],[11],[12],[16]   2,824 [14],[15],[17],[18]                
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[15],[18] (21)                    
Fair value, ending balance (41) [11],[12],[16]   (21) [14],[15],[18]                
Investment, Identifier [Axis]: iCIMS, Inc., First lien 1                      
Principal Amount or Par Value $ 44,742 [10],[11],[19],[20]   $ 44,742 [14],[17],[21],[22]                
Spread 5.75% [11],[19],[20]   5.75% [14],[21],[22] 5.75% [11],[19],[20] 5.75% [11],[19],[20] 5.75% [14],[21],[22] 5.75% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 44,406                    
Fair value, ending balance 44,151 [11],[19],[20]   $ 44,406 [14],[21],[22]                
Investment, Identifier [Axis]: iCIMS, Inc., First lien 2                      
Principal Amount or Par Value $ 7,366 [10],[11],[19],[20]   $ 7,366 [14],[17],[21],[22]                
Spread 6.25% [11],[19],[20]   6.25% [14],[21],[22] 6.25% [11],[19],[20] 6.25% [11],[19],[20] 6.25% [14],[21],[22] 6.25% [14],[21],[22]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                      
Fair value, beginning balance [14],[21],[22] $ 7,311                    
Fair value, ending balance $ 7,269 [11],[19],[20]   $ 7,311 [14],[21],[22]                
[1] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind (“PIK”) interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
[2] Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[3] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind (“PIK”) interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
[4] Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[5] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
[6] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
[7] Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[8] Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[9] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower, Sumitomo Mitsui Banking Corporation, as administrative agent, sole lead arranger, and sole book runner, and the lenders party thereto. See Note 7. Borrowings, for details
[10] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[11] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[12] Investment is held by New Mountain Finance Corporation
[13] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of March 31, 2025, 14.2% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[14] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[15] Investment is held by New Mountain Finance Corporation
[16] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolving credit facilities or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[17] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[18] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolving credit facilities or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[19] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. as the Borrower, Wells Fargo Securities, LLC, as the Administrative Agent, and Wells Fargo Bank, National Association, as the Lender and Collateral Custodian.. See Note 7. Borrowings, for details.
[20] Investment is held by New Mountain Finance Holdings, L.L.C.
[21] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. as the Borrower, Wells Fargo Securities, LLC, as the Administrative Agent, and Wells Fargo Bank, National Association, as the Lender and Collateral Custodian.. See Note 7. Borrowings, for details.
[22] Investment is held by New Mountain Finance Holdings, L.L.C.
[23] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower, Sumitomo Mitsui Banking Corporation, as administrative agent, sole lead arranger, and sole book runner, and the lenders party thereto. See Note 7. Borrowings, for details
[24] Investment is held by New Mountain Finance SBIC, L.P.
[25] Investment is held by New Mountain Finance SBIC, L.P.
[26] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, two first lien delayed draws and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc.
[27] Total Coupon is payable in cash unless otherwise indicated. A majority of the variable rate debt investments bear interest and dividends at a rate that may be determined by reference to the Secured Overnight Financing Rate (SOFR), the Prime Rate (P), the Sterling Overnight Interbank Average Rate (SONIA) and Euro Interbank Offered Rate (EURIBOR) and which resets daily (D), monthly (M), quarterly (Q), semi-annually (S) or annually (A). For each investment the current coupon rate provided reflects the rate in effect as of December 31, 2024.
[28] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, two first lien delayed draws and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc.
[29] All or a portion of interest contains PIK interest. See Note 2. Summary of Significant Accounting Policies-Revenue Recognition, for details.
[30] All or a portion of interest contains PIK interest.
[31] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of December 31, 2024, 14.6% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[32] The Company holds ordinary shares in AAC Lender Holdings, LLC and two first lien term loans, a first lien revolver and subordinated notes in American Achievement Corporation, a partially-owned subsidiary of AAC Lender Holdings, LLC.
[33] Investment is on non-accrual status. See Note 3. Investments, for details.
[34] Investment is held by NMF Ancora Holdings, Inc.
[35] Investment is held by NMF Ancora Holdings, Inc.
[36] The Company holds preferred equity in Bamboo Health Intermediate Holdings, Inc.(fka Appriss Health Intermediate Holdings, Inc.) and holds a first lien term loan and a first lien revolver in Bamboo Health Holdings, LLC (fka Appriss Health, LLC), a wholly-owned subsidiary of Bamboo Health Intermediate Holdings, Inc.
[37] Investment is held by New Mountain Finance SBIC II, L.P.
[38] Investment is held by New Mountain Finance SBIC II, L.P.
[39] The Company holds investments in two wholly-owned subsidiaries of Diamond Parent Holdings Corp. The Company holds two first lien term loans, a first lien delayed draw and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc.
[40] The Company holds investments in two wholly-owned subsidiaries of Diamond Parent Holdings Corp. The Company holds two first lien term loans, a first lien delayed draw and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc.
[41] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Eclipse Buyer, Inc., a wholly-owned subsidiary of Eclipse Topco, Inc.
[42] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Eclipse Buyer, Inc., a wholly-owned subsidiary of Eclipse Topco, Inc.
[43] The Company holds ordinary shares and preferred equity in TVG-Edmentum Holdings, LLC, and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC.
[44] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and three first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[45] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and five first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[46] The Company holds a LP Interest in Firebird Co-Invest L.P. and holds a first lien term loan, a first lien delayed and a first lien revolver in Firebird Acquisition Corp, Inc., a wholly-owned subsidiary of Firebird Co-Invest L.P. .
[47] Investment is held by NMF HB, Inc.
[48] Investment is held by NMF HB, Inc.
[49] The Company holds preferred equity in Knockout Intermediate Holdings I Inc. and a first lien term loan, a first lien revolver and two first lien delayed draws in Kaseya, Inc., a wholly-owned subsidiary of Knockout Intermediate Holdings I Inc.
[50] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as a second lien Tranche A Term Loan in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp. The second lien Tranche A Term Loan is entitled to receive 20% of the interest earned on the first lien Tranche A Term Loan, which accrues interest at a rate of SOFR + 5.00%, and 20% of the interest earned on the first lien Tranche B Term Loan, which accrues interest at a rate of SOFR + 6.00%.
[51] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as a second lien Tranche A Term Loan in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp. The second lien Tranche A Term Loan is entitled to receive 20% of the interest earned on the first lien Tranche A Term Loan, which accrues interest at a rate of SOFR + 5.00%, and 20% of the interest earned on the first lien Tranche B Term Loan, which accrues interest at a rate of SOFR + 6.00%.
[52] Investment is held by New Mountain Net Lease Corporation.
[53] Investment is held by New Mountain Net Lease Corporation.
[54] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of March 31, 2025, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $15,503 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan, undrawn revolver and drawn revolver is $17,830, $6,935, $1,068 and $226, respectively. See Note 2. Summary of Significant Accounting Policies, for details
[55] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2024, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $15,057 and the Nelipak Holding Company first lien term loan, drawn revolver, undrawn delayed draw term loan and undrawn revolver is $17,109, $406 $6,638 and $833, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[56] The Company holds ordinary shares in OA Topco, L.P., and three first lien term loans and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidiary of OA Topco, L.P.
[57] The Company holds ordinary shares in OA Topco, L.P., and three first lien term loans and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidiary of OA Topco, L.P.
[58] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $13,500 as of March 31, 2025. See Note 2. Summary of Significant Accounting Policies, for details.
[59] Investment is on non-accrual status. See Note 3. Investments, for details.
[60] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $13,500 as of December 31, 2024. See Note 2. Summary of Significant Accounting Policies, for details.
[61] Investment is held by NMF Permian Holdings, LLC.
[62] Investment is held by NMF Permian Holdings, LLC.
[63] The Company holds ordinary shares in Pioneer Topco I, L.P., and two first lien term loans and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[64] The Company holds ordinary shares in Pioneer Topco I, L.P., and two first lien term loans and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[65] Investment is held by NMF Pioneer, Inc.
[66] Investment is held by NMF Pioneer, Inc.