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Consolidated Schedule of Investments (Parenthetical)
€ in Thousands, £ in Thousands, $ in Thousands
 3 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2024
USD ($)
investment
numberOfAgreement
Dec. 31, 2023
USD ($)
investment
numberOfAgreement
Dec. 31, 2022
USD ($)
Dec. 31, 2024
EUR (€)
investment
numberOfAgreement
Dec. 31, 2024
GBP (£)
investment
numberOfAgreement
Dec. 31, 2023
EUR (€)
investment
numberOfAgreement
Dec. 31, 2023
GBP (£)
investment
numberOfAgreement
Sep. 30, 2023
USD ($)
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 $ 16,500                  
Number of collateralized agreements | numberOfAgreement     1 1   1 1 1 1        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 3,011,322                    
Net Change In Unrealized Appreciation (Depreciation)     15,069 $ 10,416 $ (85,249)                
Fair Value, Ending Balance     3,091,024 3,011,322                  
Net Realized Gains (Losses)     $ (41,412) $ (32,841) 53,530                
Investments at fair value that are non-qualifying assets as a percentage of total assets     14.60% 14.80%   14.60% 14.60% 14.80% 14.80%        
QID NGL, LLC | Common Class B                          
Ownership percentage       4.60%                  
QID TRH Holdings, LLC | Common Class B                          
Ownership percentage       97.00%                  
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     $ 17,873                    
Gross Additions     0 [1]                    
Gross Redemptions     (50) [2]                    
Net Change In Unrealized Appreciation (Depreciation)     1,333                    
Fair Value, Ending Balance     19,156 $ 17,873                  
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                    
Gross Additions     0 [1]                    
Gross Redemptions     0 [2]                    
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                    
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     113,786                    
Gross Additions     16,409 [1]                    
Gross Redemptions     0 [2]                    
Net Change In Unrealized Appreciation (Depreciation)     (38,575)                    
Fair Value, Ending Balance     91,620 113,786                  
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     23,304 20,038 17,485                
NMFC Senior Loan Program IV LLC                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Dividend Income   $ 13,173 16,228 15,483                  
Non-controlled/Affiliated                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     133,659 130,787                  
Gross Additions     16,409 [1] 22,390 [3]                  
Gross Redemptions     (50) [2] (466) [4]                  
Net Change In Unrealized Appreciation (Depreciation)     (37,242) (19,052)                  
Fair Value, Ending Balance $ 130,787   112,776 133,659 130,787                
Net Realized Gains (Losses)     0 0                  
Interest Income     5,091 4,134                  
Dividend Income     5,843 4,625                  
Other Income     250 251 250                
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     17,873 0                  
Gross Additions       15,581 [3]                  
Gross Redemptions       (459) [4]                  
Net Change In Unrealized Appreciation (Depreciation)       2,751                  
Fair Value, Ending Balance 0     17,873 0                
Net Realized Gains (Losses)       0                  
Interest Income       1,084                  
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 4,000                  
Gross Additions       2 [3]                  
Gross Redemptions       (7) [4]                  
Net Change In Unrealized Appreciation (Depreciation)       (1,995)                  
Fair Value, Ending Balance 4,000     2,000 4,000                
Net Realized Gains (Losses)       0                  
Interest Income       2                  
Dividend Income       0                  
Other Income       1                  
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     113,786 126,787                  
Gross Additions       6,807 [3]                  
Gross Redemptions       0 [4]                  
Net Change In Unrealized Appreciation (Depreciation)       (19,808)                  
Fair Value, Ending Balance 126,787     113,786 126,787                
Net Realized Gains (Losses)       0                  
Interest Income       3,048                  
Dividend Income       4,625                  
Other Income       250                  
Controlled                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     667,796 690,035                  
Gross Additions     47,177 [5] 40,458 [6]                  
Gross Redemptions     (14,413) [7] (44,109) [8]                  
Net Change In Unrealized Appreciation (Depreciation)     336 (18,588)                  
Fair Value, Ending Balance 690,035   700,896 667,796 690,035                
Net Realized Gains (Losses)     2,000 16,413                  
Interest Income     21,449 20,829                  
Dividend Income     55,086 51,208                  
Other Income     3,392 5,315 7,146                
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     3,419 35,788                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     (3,419) (32,369)                  
Fair Value, Ending Balance 35,788   0 3,419 35,788                
Net Realized Gains (Losses)     4,981 33,815                  
Interest Income     0 0                  
Dividend Income     0 0                  
Other Income     41 2,041                  
Controlled | National HME, Inc./NHME Holdings Corp.                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,000 5,381                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     0 [7] (17,404) [8]                  
Net Change In Unrealized Appreciation (Depreciation)     0 15,023                  
Fair Value, Ending Balance 5,381   3,000 3,000 5,381                
Net Realized Gains (Losses)     0 (17,404)                  
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     135,401 114,146                  
Gross Additions     10,595 [5] 26,153 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     (5,894) (4,898)                  
Fair Value, Ending Balance 114,146   140,102 135,401 114,146                
Net Realized Gains (Losses)     0 0                  
Interest Income     12,934 11,632                  
Dividend Income     0 0                  
Other Income     375 1,500                  
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     63,170 57,564                  
Gross Additions     7,005 [5] 5,606 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     (7,099) 0                  
Fair Value, Ending Balance 57,564   63,076 63,170 57,564                
Net Realized Gains (Losses)     0 0                  
Interest Income     5,382 5,197                  
Dividend Income     0 0                  
Other Income     500 506                  
Controlled | NM APP CANADA CORP                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7 0                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     (7) 7                  
Fair Value, Ending Balance 0   0 7 0                
Net Realized Gains (Losses)     31 0                  
Interest Income     0 0                  
Dividend Income     0 0                  
Other Income     0 0                  
Controlled | NM CLFX LP                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     11,731 16,172                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     (12,279) [7] (259) [8]                  
Net Change In Unrealized Appreciation (Depreciation)     548 (4,182)                  
Fair Value, Ending Balance 16,172   0 11,731 16,172                
Net Realized Gains (Losses)     (2,461) 0                  
Interest Income     0 0                  
Dividend Income     24 1,252                  
Other Income     845 0                  
Controlled | NM NL Holdings, L.P.                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     96,071 94,305                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     (2,123) [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     10,564 1,766                  
Fair Value, Ending Balance 94,305   104,512 96,071 94,305                
Net Realized Gains (Losses)     (548) 0                  
Interest Income     0 0                  
Dividend Income     8,116 8,191                  
Other Income     181 0                  
Controlled | NM GP Holdco, LLC                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,048 1,028                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     (11) [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     (715) 20                  
Fair Value, Ending Balance 1,028   322 1,048 1,028                
Net Realized Gains (Losses)     (3) 0                  
Interest Income     0 0                  
Dividend Income     89 88                  
Other Income     0 0                  
Controlled | NM YI LLC                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,550 9,481                  
Gross Additions     0 [5] 0 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     410 69                  
Fair Value, Ending Balance 9,481   9,960 9,550 9,481                
Net Realized Gains (Losses)     0 0                  
Interest Income     0 0                  
Dividend Income     879 853                  
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     140,000 140,000                  
Gross Additions     20,000 [5] 0 [6]                  
Gross Redemptions     0 [7] 0 [8]                  
Net Change In Unrealized Appreciation (Depreciation)     0 0                  
Fair Value, Ending Balance 140,000   160,000 140,000 140,000                
Net Realized Gains (Losses)     0 0                  
Interest Income     0 0                  
Dividend Income     23,304 20,038                  
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                  
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   112,400 112,400 112,400                
Net Realized Gains (Losses)     0 0                  
Interest Income     0 0                  
Dividend Income     16,228 15,483                  
Other Income     0 0                  
Controlled | UniTek Global Services, Inc.                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     91,999 103,770                  
Gross Additions     9,577 [5] 8,699 [6]                  
Gross Redemptions     0 [7] (26,446) [8]                  
Net Change In Unrealized Appreciation (Depreciation)     5,948 5,976                  
Fair Value, Ending Balance 103,770   107,524 91,999 $ 103,770                
Net Realized Gains (Losses)     0 2                  
Interest Income     3,133 4,000                  
Dividend Income     6,446 5,303                  
Other Income     1,450 1,268                  
Investment, Identifier [Axis]: AAC Lender Holdings, LLC, Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [9],[10],[11]                    
Fair Value, Ending Balance     0 [12],[13],[14] $ 0 [9],[10],[11]                  
Investment, Identifier [Axis]: AAC lender Holdings LLC, First lien                          
Number of investments held | investment       2       2 2        
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 1                          
Principal amount or par value       $ 14,011 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,420 [10],[11]                    
Fair Value, Ending Balance       13,420 [10],[11]                  
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 2                          
Principal amount or par value       5,495 [10],[15],[16]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,263 [10],[16]                    
Fair Value, Ending Balance       5,263 [10],[16]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien - Drawn 1                          
Principal amount or par value       $ 22,965 [10],[15],[17],[18]                  
Spread       5.50% [10],[17],[18]       5.50% [10],[17],[18] 5.50% [10],[17],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,965 [10],[17],[18]                    
Fair Value, Ending Balance       $ 22,965 [10],[17],[18]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien - Drawn 2                          
Principal amount or par value       $ 7,450 [10],[15],[16],[17]                  
Spread       5.50% [10],[16],[17]       5.50% [10],[16],[17] 5.50% [10],[16],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,450 [10],[16],[17]                    
Fair Value, Ending Balance       $ 7,450 [10],[16],[17]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien 1                          
Principal amount or par value       $ 20,426 [10],[15],[19]                  
Spread       5.50% [10],[19]       5.50% [10],[19] 5.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     20,426 [10],[19]                    
Fair Value, Ending Balance       $ 20,426 [10],[19]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien 2                          
Principal amount or par value       $ 9,698 [10],[15],[16]                  
Spread       5.50% [10],[16]       5.50% [10],[16] 5.50% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,698 [10],[16]                    
Fair Value, Ending Balance       $ 9,698 [10],[16]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn                          
Principal amount or par value     3,659 [13],[14],[20],[21] 3,659 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 1                          
Principal amount or par value     $ 22,733 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,734 [13],[22],[23]                    
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 2                          
Principal amount or par value     $ 20,218 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 20,218 [13],[14],[24]                    
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 3                          
Principal amount or par value     $ 9,599 [13],[20],[25]                    
Spread     5.25% [13],[25]     5.25% [13],[25] 5.25% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,599 [13],[25]                    
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 4                          
Principal amount or par value     $ 7,375 [13],[20],[25]                    
Spread     5.25% [13],[25]     5.25% [13],[25] 5.25% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,375 [13],[25]                    
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 1                          
Principal amount or par value     15,733 [13],[14],[20],[24]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     15,366 [13],[14],[24]                    
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 2                          
Principal amount or par value     6,170 [13],[20],[25]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     6,027 [13],[25]                    
Investment, Identifier [Axis]: ACI Group Holdings, Inc. First Lien - Drawn 1                          
Principal amount or par value       $ 1,397 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,364 [10],[11],[17]                    
Fair Value, Ending Balance       $ 1,364 [10],[11],[17]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc. First Lien - Drawn 2                          
Principal amount or par value       $ 353 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     345 [10],[11],[17]                    
Fair Value, Ending Balance       $ 345 [10],[11],[17]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc. First Lien 1                          
Principal amount or par value       $ 22,025 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,498 [10],[18]                    
Fair Value, Ending Balance       $ 21,498 [10],[18]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc. First Lien 2                          
Principal amount or par value       $ 3,904 [10],[11],[15]                  
Spread       5.50% [10],[11]       5.50% [10],[11] 5.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 3,810 [10],[11]                    
Fair Value, Ending Balance       $ 3,810 [10],[11]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First Lien                          
Number of investments held | investment       2       2 2        
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien                          
Number of investments held | investment     2     2 2            
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Drawn                          
Principal amount or par value     $ 235 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 228 [13],[14],[21]                    
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn                          
Principal amount or par value     2,118 [13],[14],[20],[21],[26]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (62) [13],[14],[21],[26]                    
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value       $ 2,001 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (48) [10],[11],[17]                    
Fair Value, Ending Balance       (48) [10],[11],[17]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value       2,909 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (70) [10],[11],[17]                    
Fair Value, Ending Balance       $ (70) [10],[11],[17]                  
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 1                          
Principal amount or par value     $ 21,910 [13],[20],[22],[23]                    
Spread     2.75% [13],[22],[23],[27]     2.75% [13],[22],[23],[27] 2.75% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,266 [13],[22],[23]                    
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 2                          
Principal amount or par value     $ 4,206 [13],[14],[20],[24]                    
Spread     2.75% [13],[14],[24],[27]     2.75% [13],[14],[24],[27] 2.75% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,082 [13],[14],[24]                    
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 3                          
Principal amount or par value     $ 3,884 [13],[14],[20],[24]                    
Spread     2.75% [13],[14],[24],[27]     2.75% [13],[14],[24],[27] 2.75% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,769 [13],[14],[24]                    
Investment, Identifier [Axis]: ACI Parent Inc., Preferred shares                          
Preferred equity dividend rate       11.75%                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     15,040 [10],[11],[28]                    
Fair Value, Ending Balance     16,419 [13],[14],[26] $ 15,040 [10],[11],[28]                  
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien                          
Principal amount or par value     $ 3,062 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24]     4.75% [13],[14],[24] 4.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,062 [13],[14],[24]                    
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien - Undrawn                          
Principal amount or par value     3,077 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien                          
Principal amount or par value     $ 4,698 [13],[14],[20],[24],[29]                    
Spread     6.25% [13],[14],[24],[29]     6.25% [13],[14],[24],[29] 6.25% [13],[14],[24],[29]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,698 [13],[14],[24],[29]                    
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 1                          
Principal amount or par value     1,048 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 2                          
Principal amount or par value     667 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp. First Lien                          
Principal amount or par value       $ 13,444 [10],[15],[19]                  
Spread       8.25% [10],[19]       8.25% [10],[19] 8.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,444 [10],[19]                    
Fair Value, Ending Balance       $ 13,444 [10],[19]                  
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp., First lien                          
Principal amount or par value     $ 8,510 [13],[14],[20],[24]                    
Spread     6.75% [13],[14],[24]     6.75% [13],[14],[24] 6.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 8,404 [13],[14],[24]                    
Investment, Identifier [Axis]: Ambrosia Holdco Corp., First lien                          
Number of investments held | investment     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, Ending Balance     $ 1,348 [13],[23]                    
Investment, Identifier [Axis]: Ambrosia Holdco Corp., Ordinary shares 2                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     1,300 [13],[14]                    
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. First Lien - Drawn                          
Principal amount or par value       $ 700 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     700 [10],[11],[17]                    
Fair Value, Ending Balance       $ 700 [10],[11],[17]                  
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. First Lien 1                          
Principal amount or par value       $ 19,159 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     19,159 [10],[18]                    
Fair Value, Ending Balance       $ 19,159 [10],[18]                  
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. First Lien 2                          
Principal amount or par value       $ 5,331 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,331 [10],[18]                    
Fair Value, Ending Balance       $ 5,331 [10],[18]                  
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                          
Principal amount or par value     1,969 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                          
Principal amount or par value       1,969 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 1                          
Principal amount or par value     $ 18,964 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 18,964 [13],[22],[23]                    
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 2                          
Principal amount or par value     $ 5,277 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,277 [13],[22],[23]                    
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 3                          
Principal amount or par value     $ 693 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 693 [13],[14],[24]                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) First Lien 1                          
Principal amount or par value       $ 29,879 [10],[15],[18],[30]                  
Spread       0.50% [10],[18],[30],[31]       0.50% [10],[18],[30],[31] 0.50% [10],[18],[30],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     20,586 [10],[18],[30]                    
Fair Value, Ending Balance       $ 20,586 [10],[18],[30]                  
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) First Lien 2                          
Principal amount or par value       $ 1,527 [10],[11],[15],[30]                  
Spread       0.50% [10],[11],[30],[31]       0.50% [10],[11],[30],[31] 0.50% [10],[11],[30],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[30]                    
Fair Value, Ending Balance       $ 0 [10],[11],[30]                  
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) Subordinated                          
Principal amount or par value       5,230 [10],[11],[15],[30]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[30]                    
Fair Value, Ending Balance       0 [10],[11],[30]                  
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            
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                          
Principal amount or par value     $ 2,652 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                          
Principal amount or par value       2,652 [9],[10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [9],[10],[11],[17]                    
Fair Value, Ending Balance       0 [9],[10],[11],[17]                  
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 1                          
Principal amount or par value     $ 29,879 [13],[20],[23],[32]                    
Spread     0.50% [13],[23],[27],[32]     0.50% [13],[23],[27],[32] 0.50% [13],[23],[27],[32]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 17,999 [13],[23],[32]                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 2                          
Principal amount or par value     $ 1,527 [13],[14],[20],[32]                    
Spread     0.50% [13],[14],[27],[32]     0.50% [13],[14],[27],[32] 0.50% [13],[14],[27],[32]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 0 [13],[14],[32]                    
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 [13],[14],[20],[32]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[32]                    
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       $ 10,618 [10],[15],[18]                  
Spread       6.50% [10],[18]       6.50% [10],[18] 6.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,618 [10],[18]                    
Fair Value, Ending Balance       $ 10,618 [10],[18]                  
Investment, Identifier [Axis]: Anaplan, Inc., First lien                          
Principal amount or par value     $ 10,618 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 10,618 [13],[14],[24]                    
Investment, Identifier [Axis]: Ancora Acquisition LLC, Preferred shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[33]                    
Fair Value, Ending Balance     0 [13],[34] $ 0 [10],[33]                  
Investment, Identifier [Axis]: Appriss Health Holdings, Inc, Wholly-owned subsidiaries                          
Number of investments held | investment       2       2 2        
Investment, Identifier [Axis]: Appriss Health Intermediate Holdings, Inc., Preferred shares                          
Preferred equity dividend rate       11.00%                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,863 [10],[11]                    
Fair Value, Ending Balance       $ 2,863 [10],[11]                  
Investment, Identifier [Axis]: Appriss Health, LLC, First Lien                          
Principal amount or par value       $ 6,188 [10],[15],[19],[35]                  
Spread       6.75% [10],[19],[35]       6.75% [10],[19],[35] 6.75% [10],[19],[35]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,188 [10],[19],[35]                    
Fair Value, Ending Balance       $ 6,188 [10],[19],[35]                  
Investment, Identifier [Axis]: Appriss Health, LLC, First lien - Undrawn                          
Principal amount or par value       417 [10],[11],[15],[17],[35]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17],[35]                    
Fair Value, Ending Balance       0 [10],[11],[17],[35]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien - Drawn                          
Principal amount or par value       $ 1,252 [10],[11],[15],[17]                  
Spread       6.50% [10],[11],[17]       6.50% [10],[11],[17] 6.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,252 [10],[11],[17]                    
Fair Value, Ending Balance       $ 1,252 [10],[11],[17]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 1                          
Principal amount or par value       $ 33,701 [10],[15],[18]                  
Spread       4.00% [10],[18],[31]       4.00% [10],[18],[31] 4.00% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     33,701 [10],[18]                    
Fair Value, Ending Balance       $ 33,701 [10],[18]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 2                          
Principal amount or par value       $ 9,037 [10],[15],[18]                  
Spread       4.00% [10],[18],[31]       4.00% [10],[18],[31] 4.00% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,037 [10],[18]                    
Fair Value, Ending Balance       $ 9,037 [10],[18]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 3                          
Principal amount or par value       $ 9,036 [10],[15],[19]                  
Spread       4.00% [10],[19],[31]       4.00% [10],[19],[31] 4.00% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,036 [10],[19]                    
Fair Value, Ending Balance       $ 9,036 [10],[19]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 4                          
Principal amount or par value       $ 5,457 [10],[15],[19]                  
Spread       4.00% [10],[19],[31]       4.00% [10],[19],[31] 4.00% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,457 [10],[19]                    
Fair Value, Ending Balance       $ 5,457 [10],[19]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 5                          
Principal amount or par value       $ 4,341 [10],[15],[19]                  
Spread       4.00% [10],[19],[31]       4.00% [10],[19],[31] 4.00% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,341 [10],[19]                    
Fair Value, Ending Balance       $ 4,341 [10],[19]                  
Investment, Identifier [Axis]: Associations, Inc. First Lien 6                          
Principal amount or par value       $ 4,121 [10],[15],[18]                  
Spread       4.00% [10],[18],[31]       4.00% [10],[18],[31] 4.00% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,121 [10],[18]                    
Fair Value, Ending Balance       $ 4,121 [10],[18]                  
Investment, Identifier [Axis]: Associations, Inc., First lien                          
Principal amount or par value     $ 49,430 [13],[14],[20],[24]                    
Spread     6.50% [13],[14],[24]     6.50% [13],[14],[24] 6.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 49,430 [13],[14],[24]                    
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 2                          
Principal amount or par value     $ 641 [13],[14],[20],[21]                    
Spread     6.50% [13],[14],[21]     6.50% [13],[14],[21] 6.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 641 [13],[14],[21]                    
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 2                          
Principal amount or par value     3,200 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 1                          
Principal amount or par value     $ 1,539 [13],[14],[20],[21]                    
Spread     6.50% [13],[14],[21]     6.50% [13],[14],[21] 6.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,539 [13],[14],[21]                    
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn                          
Principal amount or par value       2,291 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,539 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Associations, Inc., Subordinated 1                          
Principal amount or par value     7,959 [13],[14],[20]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     7,959 [13],[14]                    
Investment, Identifier [Axis]: Associations, Inc., Subordinated 2                          
Principal amount or par value     3,039 [13],[14],[20]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     3,039 [13],[14]                    
Investment, Identifier [Axis]: Aston FinCo S.a r.l. / Aston US Finco, LLC, Second lien                          
Principal amount or par value     $ 34,459 [13],[14],[20],[24],[29] $ 34,459 [10],[15],[19],[36]                  
Spread     8.25% [13],[14],[24],[29] 8.25% [10],[19],[36]   8.25% [13],[14],[24],[29] 8.25% [13],[14],[24],[29] 8.25% [10],[19],[36] 8.25% [10],[19],[36]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 34,458 [10],[19],[36]                    
Fair Value, Ending Balance     34,459 [13],[14],[24],[29] $ 34,458 [10],[19],[36]                  
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First Lien 1                          
Principal amount or par value       $ 3,454 [10],[15],[18]                  
Spread       7.25% [10],[18]       7.25% [10],[18] 7.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,454 [10],[18]                    
Fair Value, Ending Balance       $ 3,454 [10],[18]                  
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First Lien 2                          
Principal amount or par value       $ 1,345 [15],[18]                  
Spread       6.75% [18]       6.75% [18] 6.75% [18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,332 [18]                    
Fair Value, Ending Balance       $ 1,332 [18]                  
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                          
Principal amount or par value     320 [13],[14],[20],[21],[29]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21],[29]                    
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                          
Principal amount or par value       320 [10],[11],[15],[17],[36]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17],[36]                    
Fair Value, Ending Balance       0 [10],[11],[17],[36]                  
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 1                          
Principal amount or par value     $ 3,445 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,445 [13],[14],[24]                    
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 2                          
Principal amount or par value     $ 1,342 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,342 [13],[14],[24]                    
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.) First Lien 1                          
Principal amount or par value       $ 21,847 [10],[15],[19]                  
Spread       5.75% [10],[19]       5.75% [10],[19] 5.75% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,473 [10],[19]                    
Fair Value, Ending Balance       $ 21,473 [10],[19]                  
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.) First Lien 2                          
Principal amount or par value       $ 14,774 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     14,522 [10],[18]                    
Fair Value, Ending Balance       $ 14,522 [10],[18]                  
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 1                          
Principal amount or par value     $ 21,624 [13],[14],[20],[24]                    
Spread     5.75% [13],[14],[24]     5.75% [13],[14],[24] 5.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,138 [13],[14],[24]                    
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 2                          
Principal amount or par value     $ 14,624 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,295 [13],[22],[23]                    
Investment, Identifier [Axis]: Avalara, Inc First Lien                          
Principal amount or par value       $ 17,198 [10],[15],[19]                  
Spread       7.25% [10],[19]       7.25% [10],[19] 7.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     17,198 [10],[19]                    
Fair Value, Ending Balance       $ 17,198 [10],[19]                  
Investment, Identifier [Axis]: Avalara, Inc., First lien                          
Principal amount or par value     $ 17,198 [13],[14],[20],[24]                    
Spread     6.25% [13],[14],[24]     6.25% [13],[14],[24] 6.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 17,198 [13],[14],[24]                    
Investment, Identifier [Axis]: Avalara, Inc., First lien - Undrawn                          
Principal amount or par value     1,720 [13],[14],[20],[21] 1,720 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     $ 0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Bach Special Limited (Bach Preference Limited), Preferred shares                          
Spread     11.75% [14],[24],[29]     11.75% [14],[24],[29] 11.75% [14],[24],[29]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 11,742 [10],[11],[36]                    
Fair Value, Ending Balance     13,867 [14],[24],[29] 11,742 [10],[11],[36]                  
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien                          
Principal amount or par value     $ 13,687 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24]     4.75% [13],[14],[24] 4.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 13,585 [13],[14],[24]                    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 1                          
Principal amount or par value     2,065 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (15) [13],[14],[21]                    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 2                          
Principal amount or par value     2,894 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (22) [13],[14],[21]                    
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien                          
Principal amount or par value     $ 6,109 [13],[14],[20],[24],[37]                    
Spread     7.00% [13],[14],[24],[37]     7.00% [13],[14],[24],[37] 7.00% [13],[14],[24],[37]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,109 [13],[14],[24],[37]                    
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien - Undrawn                          
Principal amount or par value     417 [13],[14],[20],[21],[37]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21],[37]                    
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, Ending Balance     3,371 [13],[14],[37]                    
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Drawn                          
Principal amount or par value     $ 467 [13],[14],[20],[21]                    
Spread     4.75% [13],[14],[21]     4.75% [13],[14],[21] 4.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 467 [13],[14],[21]                    
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Undrawn                          
Principal amount or par value     1,685 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc. First Lien                          
Principal amount or par value       $ 20,171 [10],[15],[38]                  
Spread       5.00% [10],[38]       5.00% [10],[38] 5.00% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     20,070 [10],[38]                    
Fair Value, Ending Balance       $ 20,070 [10],[38]                  
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 1                          
Principal amount or par value     $ 1,319 [13],[20],[21],[39]                    
Spread     5.00% [13],[21],[39]     5.00% [13],[21],[39] 5.00% [13],[21],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,319 [13],[21],[39]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 2                          
Principal amount or par value     $ 516 [13],[14],[20],[21]                    
Spread     5.00% [13],[14],[21]     5.00% [13],[14],[21] 5.00% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 516 [13],[14],[21]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value     376 [13],[14],[20],[21] 2,292 [10],[15],[17],[38]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[38]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[17],[38]                  
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value     1,594 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 3                          
Principal amount or par value     963 [13],[20],[21],[39]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[21],[39]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 1                          
Principal amount or par value     $ 20,019 [13],[20],[39]                    
Spread     5.00% [13],[39]     5.00% [13],[39] 5.00% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 20,019 [13],[39]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 2                          
Principal amount or par value     $ 7,827 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,827 [13],[22],[23]                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc.n, First lien - Undrawn 2                          
Principal amount or par value       1,146 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (6) [10],[11],[17]                    
Fair Value, Ending Balance       (6) [10],[11],[17]                  
Investment, Identifier [Axis]: Bullhorn, Inc. First Lien 1                          
Principal amount or par value       $ 16,487 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,487 [10],[18]                    
Fair Value, Ending Balance       $ 16,487 [10],[18]                  
Investment, Identifier [Axis]: Bullhorn, Inc. First Lien 2                          
Principal amount or par value       $ 3,407 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,407 [10],[18]                    
Fair Value, Ending Balance       $ 3,407 [10],[18]                  
Investment, Identifier [Axis]: Bullhorn, Inc. First Lien 3                          
Principal amount or par value       $ 763 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     763 [10],[18]                    
Fair Value, Ending Balance       $ 763 [10],[18]                  
Investment, Identifier [Axis]: Bullhorn, Inc. First Lien 4                          
Principal amount or par value       $ 342 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     342 [10],[18]                    
Fair Value, Ending Balance       $ 342 [10],[18]                  
Investment, Identifier [Axis]: Bullhorn, Inc. First Lien 5                          
Principal amount or par value       $ 273 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     273 [10],[18]                    
Fair Value, Ending Balance       $ 273 [10],[18]                  
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                          
Principal amount or par value     935 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Drawn                          
Principal amount or par value     $ 417 [13],[14],[20],[21]                    
Spread     5.00% [13],[14],[21]     5.00% [13],[14],[21] 5.00% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 417 [13],[14],[21]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn                          
Principal amount or par value       852 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,847 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 1                          
Principal amount or par value     $ 13,206 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 13,206 [13],[22],[23]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 2                          
Principal amount or par value     $ 8,462 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 8,462 [13],[14],[24]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 3                          
Principal amount or par value     $ 3,398 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,398 [13],[22],[23]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 4                          
Principal amount or par value     $ 761 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 761 [13],[22],[23]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 5                          
Principal amount or par value     $ 341 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 341 [13],[22],[23]                    
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 6                          
Principal amount or par value     $ 272 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 272 [13],[22],[23]                    
Investment, Identifier [Axis]: CB Buyer, Inc., First lien                          
Principal amount or par value     $ 3,308 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,292 [13],[22],[23]                    
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 1                          
Principal amount or par value     364 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (2) [13],[14],[21]                    
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 2                          
Principal amount or par value     934 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (5) [13],[14],[21]                    
Investment, Identifier [Axis]: CFS Management, LLC, First Lien 1                          
Principal amount or par value       $ 11,188 [10],[15],[18]                  
Spread       6.25% [10],[18],[31]       6.25% [10],[18],[31] 6.25% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,775 [10],[18]                    
Fair Value, Ending Balance       $ 9,775 [10],[18]                  
Investment, Identifier [Axis]: CFS Management, LLC, First Lien 2                          
Principal amount or par value       $ 3,333 [10],[15],[18]                  
Spread       6.25% [10],[18],[31]       6.25% [10],[18],[31] 6.25% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,912 [10],[18]                    
Fair Value, Ending Balance       $ 2,912 [10],[18]                  
Investment, Identifier [Axis]: CFS Management, LLC, First lien 1                          
Principal amount or par value     $ 11,881 [13],[20],[22],[23]                    
Spread     6.25% [13],[22],[23],[27]     6.25% [13],[22],[23],[27] 6.25% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 10,693 [13],[22],[23]                    
Investment, Identifier [Axis]: CFS Management, LLC, First lien 2                          
Principal amount or par value     $ 3,539 [13],[20],[22],[23]                    
Spread     6.25% [13],[22],[23],[27]     6.25% [13],[22],[23],[27] 6.25% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,185 [13],[22],[23]                    
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien                          
Principal amount or par value     $ 8,493 [13],[20],[22],[23]                    
Spread     6.75% [13],[22],[23],[27]     6.75% [13],[22],[23],[27] 6.75% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 8,449 [13],[22],[23]                    
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Drawn                          
Principal amount or par value     $ 954 [13],[14],[20],[21],[24]                    
Spread     6.75% [13],[14],[21],[24],[27]     6.75% [13],[14],[21],[24],[27] 6.75% [13],[14],[21],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 950 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Undrawn                          
Principal amount or par value     226 [13],[14],[20],[21] 226 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (10) [10],[11],[17]                    
Fair Value, Ending Balance     (1) [13],[14],[21] (10) [10],[11],[17]                  
Investment, Identifier [Axis]: CG Group Holdings, LLC,First Lien                          
Principal amount or par value       $ 8,403 [10],[15],[18]                  
Spread       6.75% [10],[18],[31]       6.75% [10],[18],[31] 6.75% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     8,039 [10],[18]                    
Fair Value, Ending Balance       $ 8,039 [10],[18]                  
Investment, Identifier [Axis]: CG Group Holdings, LLC,First Lien - Drawn                          
Principal amount or par value       $ 935 [10],[11],[15],[17]                  
Spread       6.75% [10],[11],[17],[31]       6.75% [10],[11],[17],[31] 6.75% [10],[11],[17],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     894 [10],[11],[17]                    
Fair Value, Ending Balance       $ 894 [10],[11],[17]                  
Investment, Identifier [Axis]: CHA Holdings, Inc. Second Lien 1                          
Principal amount or par value       $ 7,012 [10],[15],[16]                  
Spread       8.75% [10],[16]       8.75% [10],[16] 8.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,012 [10],[16]                    
Fair Value, Ending Balance       $ 7,012 [10],[16]                  
Investment, Identifier [Axis]: CHA Holdings, Inc. Second Lien 2                          
Principal amount or par value       $ 4,453 [10],[11],[15]                  
Spread       8.75% [10],[11]       8.75% [10],[11] 8.75% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,454 [10],[11]                    
Fair Value, Ending Balance       $ 4,454 [10],[11]                  
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. Second Lien 1                          
Principal amount or par value       $ 18,266 [10],[11],[15]                  
Spread       7.25% [10],[11]       7.25% [10],[11] 7.25% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,184 [10],[11]                    
Fair Value, Ending Balance       $ 18,184 [10],[11]                  
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. Second Lien 2                          
Principal amount or par value       $ 7,500 [10],[15],[19]                  
Spread       7.25% [10],[19]       7.25% [10],[19] 7.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,467 [10],[19]                    
Fair Value, Ending Balance       $ 7,467 [10],[19]                  
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien                          
Principal amount or par value     $ 6,516 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,483 [13],[22],[23]                    
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Drawn                          
Principal amount or par value     $ 489 [13],[14],[20],[21],[24]                    
Spread     5.00% [13],[14],[21],[24]     5.00% [13],[14],[21],[24] 5.00% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 486 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value     597 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (3) [13],[14],[21]                    
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value     1,629 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (8) [13],[14],[21]                    
Investment, Identifier [Axis]: Calabrio, Inc. First Lien                          
Principal amount or par value       $ 12,347 [15],[38]                  
Spread       7.13% [38]       7.13% [38] 7.13% [38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,224 [38]                    
Fair Value, Ending Balance       $ 12,224 [38]                  
Investment, Identifier [Axis]: Calabrio, Inc. First Lien - Drawn                          
Principal amount or par value       $ 850 [11],[15],[17]                  
Spread       7.13% [11],[17]       7.13% [11],[17] 7.13% [11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     841 [11],[17]                    
Fair Value, Ending Balance       $ 841 [11],[17]                  
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                          
Principal amount or par value     850 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Drawn                          
Principal amount or par value     $ 637 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 637 [13],[14],[21]                    
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                          
Principal amount or par value       637 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (6) [11],[17]                    
Fair Value, Ending Balance       (6) [11],[17]                  
Investment, Identifier [Axis]: Calabrio, Inc., First lien 1                          
Principal amount or par value     $ 12,286 [13],[20],[39]                    
Spread     5.50% [13],[39]     5.50% [13],[39] 5.50% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 12,286 [13],[39]                    
Investment, Identifier [Axis]: Calabrio, Inc., First lien 2                          
Principal amount or par value     $ 1,574 [13],[20],[39]                    
Spread     5.50% [13],[39]     5.50% [13],[39] 5.50% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,574 [13],[39]                    
Investment, Identifier [Axis]: Cardinal Parent, Inc. First Lien                          
Principal amount or par value       $ 11,852 [15],[16]                  
Spread       4.50% [16]       4.50% [16] 4.50% [16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,919 [16]                    
Fair Value, Ending Balance       $ 10,919 [16]                  
Investment, Identifier [Axis]: Cardinal Parent, Inc. Second Lien                          
Principal amount or par value       $ 9,767 [10],[15],[16]                  
Spread       7.75% [10],[16]       7.75% [10],[16] 7.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     8,975 [10],[16]                    
Fair Value, Ending Balance       $ 8,975 [10],[16]                  
Investment, Identifier [Axis]: Cardinal Parent, Inc., First lien                          
Principal amount or par value     $ 11,730 [20],[25]                    
Spread     4.50% [25]     4.50% [25] 4.50% [25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 11,249 [25]                    
Investment, Identifier [Axis]: Cardinal Parent, Inc., Second lien                          
Principal amount or par value     $ 9,767 [13],[20],[25]                    
Spread     7.75% [13],[25]     7.75% [13],[25] 7.75% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,423 [13],[25]                    
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien                          
Principal amount or par value     $ 35,797 [13],[20],[22],[23]                    
Spread     2.88% [13],[22],[23],[27]     2.88% [13],[22],[23],[27] 2.88% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 35,797 [13],[22],[23]                    
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien - Undrawn                          
Principal amount or par value     3,980 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, Second Lien 1                          
Principal amount or par value       $ 47,838 [10],[11],[15]                  
Spread       7.50% [10],[11]       7.50% [10],[11] 7.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     45,072 [10],[11]                    
Fair Value, Ending Balance       $ 45,072 [10],[11]                  
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, Second Lien 2                          
Principal amount or par value       $ 7,500 [10],[15],[19]                  
Spread       7.50% [10],[19]       7.50% [10],[19] 7.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,066 [10],[19]                    
Fair Value, Ending Balance       $ 7,066 [10],[19]                  
Investment, Identifier [Axis]: Ciklum Inc., First lien                          
Principal amount or par value     $ 9,536 [13],[20],[22],[23],[29]                    
Spread     6.50% [13],[22],[23],[29]     6.50% [13],[22],[23],[29] 6.50% [13],[22],[23],[29]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,536 [13],[22],[23],[29]                    
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 1                          
Principal amount or par value     11,955 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 2                          
Principal amount or par value     2,989 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: CommerceHub, Inc. First Lien                          
Principal amount or par value       $ 3,960 [10],[11],[15]                  
Spread       6.25% [10],[11]       6.25% [10],[11] 6.25% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,960 [10],[11]                    
Fair Value, Ending Balance       $ 3,960 [10],[11]                  
Investment, Identifier [Axis]: CommerceHub, Inc., First lien                          
Principal amount or par value     $ 3,920 [13],[14],[20],[24]                    
Spread     6.25% [13],[14],[24]     6.25% [13],[14],[24] 6.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,920 [13],[14],[24]                    
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First Lien                          
Principal amount or par value       $ 7,091 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,899 [10],[18]                    
Fair Value, Ending Balance       $ 6,899 [10],[18]                  
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien - Undrawn 1                          
Principal amount or par value       425 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (11) [10],[11],[17]                    
Fair Value, Ending Balance       (11) [10],[11],[17]                  
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien - Undrawn 2                          
Principal amount or par value       849 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (23) [10],[11],[17]                    
Fair Value, Ending Balance       (23) [10],[11],[17]                  
Investment, Identifier [Axis]: Compsych Investments Corp., First lien                          
Principal amount or par value     $ 1,164 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,162 [13],[22],[23]                    
Investment, Identifier [Axis]: Compsych Investments Corp., First lien - Undrawn                          
Principal amount or par value     333 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (1) [13],[14],[21]                    
Investment, Identifier [Axis]: Convey Health Solutions, Inc. First Lien 1                          
Principal amount or par value       $ 19,022 [10],[15],[16]                  
Spread       5.25% [10],[16]       5.25% [10],[16] 5.25% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,768 [10],[16]                    
Fair Value, Ending Balance       $ 16,768 [10],[16]                  
Investment, Identifier [Axis]: Convey Health Solutions, Inc. First Lien 2                          
Principal amount or par value       $ 3,176 [10],[15],[16]                  
Spread       5.25% [10],[16]       5.25% [10],[16] 5.25% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,800 [10],[16]                    
Fair Value, Ending Balance       $ 2,800 [10],[16]                  
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 1                          
Principal amount or par value     $ 13,152 [13],[14],[20],[24]                    
Spread     1.00% [13],[14],[24],[27]     1.00% [13],[14],[24],[27] 1.00% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 11,935 [13],[14],[24]                    
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 2                          
Principal amount or par value     $ 2,196 [13],[14],[20],[24]                    
Spread     1.00% [13],[14],[24],[27]     1.00% [13],[14],[24],[27] 1.00% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,993 [13],[14],[24]                    
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien                          
Principal amount or par value     $ 1,050 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,050 [13],[14],[24]                    
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien - Undrawn                          
Principal amount or par value     578 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Coupa Holdings, LLC First Lien 1                          
Principal amount or par value       $ 7,230 [10],[15],[18]                  
Spread       7.50% [10],[18]       7.50% [10],[18] 7.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,303 [10],[18]                    
Fair Value, Ending Balance       $ 7,303 [10],[18]                  
Investment, Identifier [Axis]: Coupa Holdings, LLC First Lien 2                          
Principal amount or par value       $ 7,230 [10],[15],[19]                  
Spread       7.50% [10],[19]       7.50% [10],[19] 7.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,303 [10],[19]                    
Fair Value, Ending Balance       $ 7,303 [10],[19]                  
Investment, Identifier [Axis]: Coupa Holdings, LLC First lien - Undrawn 1                          
Principal amount or par value       1,291 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13 [10],[11],[17]                    
Fair Value, Ending Balance       13 [10],[11],[17]                  
Investment, Identifier [Axis]: Coupa Holdings, LLC First lien - Undrawn 2                          
Principal amount or par value       989 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien                          
Principal amount or par value     $ 14,388 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,388 [13],[14],[24]                    
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 1                          
Principal amount or par value     1,291 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 2                          
Principal amount or par value     989 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Coyote Buyer, LLC First Lien 1                          
Principal amount or par value       $ 13,653 [15],[38]                  
Spread       6.00% [38]       6.00% [38] 6.00% [38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,653 [38]                    
Fair Value, Ending Balance       $ 13,653 [38]                  
Investment, Identifier [Axis]: Coyote Buyer, LLC First Lien 2                          
Principal amount or par value       $ 2,457 [15],[38]                  
Spread       8.00% [38]       8.00% [38] 8.00% [38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,457 [38]                    
Fair Value, Ending Balance       $ 2,457 [38]                  
Investment, Identifier [Axis]: Coyote Buyer, LLC, First lien - Undrawn                          
Principal amount or par value       1,013 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [11],[17]                    
Fair Value, Ending Balance       0 [11],[17]                  
Investment, Identifier [Axis]: Cube Industrials Buyer, Inc. First Lien                          
Principal amount or par value       $ 4,483 [10],[11],[15]                  
Spread       6.00% [10],[11]       6.00% [10],[11] 6.00% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,450 [10],[11]                    
Fair Value, Ending Balance       $ 4,450 [10],[11]                  
Investment, Identifier [Axis]: Cube Industrials Buyer, Inc., First lien - Undrawn                          
Principal amount or par value       517 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (4) [10],[11],[17]                    
Fair Value, Ending Balance       (4) [10],[11],[17]                  
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First Lien                          
Principal amount or par value       $ 1,823 [10],[15],[18]                  
Spread       6.41% [10],[18]       6.41% [10],[18] 6.41% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,768 [10],[18]                    
Fair Value, Ending Balance       $ 1,768 [10],[18]                  
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First Lien - Drawn                          
Principal amount or par value       $ 1,021 [10],[11],[15],[17]                  
Spread       6.50% [10],[11],[17]       6.50% [10],[11],[17] 6.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     992 [10],[11],[17]                    
Fair Value, Ending Balance       $ 992 [10],[11],[17]                  
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 1                          
Principal amount or par value     $ 1,804 [13],[20],[22],[23]                    
Spread     6.41% [13],[22],[23]     6.41% [13],[22],[23] 6.41% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,758 [13],[22],[23]                    
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 2                          
Principal amount or par value     $ 1,011 [13],[14],[20],[24]                    
Spread     6.50% [13],[14],[24]     6.50% [13],[14],[24] 6.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 987 [13],[14],[24]                    
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc. Second Lien                          
Principal amount or par value       $ 20,313 [11],[15]                  
Spread       6.75% [11]       6.75% [11] 6.75% [11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,333 [11]                    
Fair Value, Ending Balance       $ 18,333 [11]                  
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc., Second lien                          
Principal amount or par value     $ 20,313 [14],[20],[24]                    
Spread     6.75% [14],[24]     6.75% [14],[24] 6.75% [14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 20,281 [14],[24]                    
Investment, Identifier [Axis]: DOCS, MSO, LLC, First Lien 1                          
Principal amount or par value       $ 18,572 [10],[15],[19]                  
Spread       5.75% [10],[19]       5.75% [10],[19] 5.75% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,238 [10],[19]                    
Fair Value, Ending Balance       $ 18,238 [10],[19]                  
Investment, Identifier [Axis]: DOCS, MSO, LLC, First Lien 2                          
Principal amount or par value       $ 6,955 [10],[15],[16]                  
Spread       5.75% [10],[16]       5.75% [10],[16] 5.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,830 [10],[16]                    
Fair Value, Ending Balance       $ 6,830 [10],[16]                  
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn                          
Principal amount or par value     2,405 [13],[14],[20],[21] 2,405 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (43) [10],[11],[17]                    
Fair Value, Ending Balance     (13) [13],[14],[21] (43) [10],[11],[17]                  
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 1                          
Principal amount or par value     $ 18,337 [13],[14],[20],[24]                    
Spread     5.75% [13],[14],[24]     5.75% [13],[14],[24] 5.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 18,236 [13],[14],[24]                    
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 2                          
Principal amount or par value     $ 6,867 [13],[20],[25]                    
Spread     5.75% [13],[25]     5.75% [13],[25] 5.75% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,829 [13],[25]                    
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, First lien - Undrawn                          
Principal amount or par value     3,046 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: DS Admiral Bidco, LLC, First Lien                          
Principal amount or par value       $ 7,472 [10],[15],[18]                  
Spread       7.00% [10],[18]       7.00% [10],[18] 7.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,564 [10],[18]                    
Fair Value, Ending Balance       $ 7,564 [10],[18]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First Lien - Drawn 1                          
Principal amount or par value       $ 66 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     66 [10],[11],[17]                    
Fair Value, Ending Balance       $ 66 [10],[11],[17]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First Lien - Drawn 2                          
Principal amount or par value       $ 66 [10],[11],[15],[17]                  
Spread       4.50% [10],[11],[17]       4.50% [10],[11],[17] 4.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     66 [10],[11],[17]                    
Fair Value, Ending Balance       $ 66 [10],[11],[17]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First Lien 1                          
Principal amount or par value       $ 13,011 [10],[15],[19]                  
Spread       5.50% [10],[19]       5.50% [10],[19] 5.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,011 [10],[19]                    
Fair Value, Ending Balance       $ 13,011 [10],[19]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First Lien 2                          
Principal amount or par value       $ 1,096 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,096 [10],[18]                    
Fair Value, Ending Balance       $ 1,096 [10],[18]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn                          
Principal amount or par value     986 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn 1                          
Principal amount or par value       459 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn 2                          
Principal amount or par value       920 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 1                          
Principal amount or par value     $ 12,878 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 12,878 [13],[14],[24]                    
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 2                          
Principal amount or par value     $ 1,085 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,085 [13],[22],[23]                    
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 3                          
Principal amount or par value     $ 65 [13],[14],[20]                    
Spread     5.00% [13],[14]     5.00% [13],[14] 5.00% [13],[14]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 65 [13],[14]                    
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC, Preferred shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     74,768 [10],[11]                    
Fair Value, Ending Balance     79,222 [13],[14],[24] 74,768 [10],[11]                  
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First Lien - Drawn                          
Principal amount or par value       $ 2,623 [10],[11],[15],[17]                  
Spread       5.75% [10],[11],[17]       5.75% [10],[11],[17] 5.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,576 [10],[11],[17]                    
Fair Value, Ending Balance       $ 2,576 [10],[11],[17]                  
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First Lien 1                          
Principal amount or par value       $ 37,477 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     36,791 [10],[18]                    
Fair Value, Ending Balance       $ 36,791 [10],[18]                  
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First Lien 2                          
Principal amount or par value       $ 3,945 [10],[11],[15]                  
Spread       5.75% [10],[11]       5.75% [10],[11] 5.75% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,873 [10],[11]                    
Fair Value, Ending Balance       $ 3,873 [10],[11]                  
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn                          
Principal amount or par value     $ 3,027 [13],[14],[20],[21],[24]                    
Spread     5.75% [13],[14],[21],[24]     5.75% [13],[14],[21],[24] 5.75% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,987 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Undrawn                          
Principal amount or par value       404 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (7) [10],[11],[17]                    
Fair Value, Ending Balance       $ (7) [10],[11],[17]                  
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 1                          
Principal amount or par value     $ 37,094 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 36,604 [13],[22],[23]                    
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 2                          
Principal amount or par value     $ 3,905 [13],[14],[20],[24]                    
Spread     5.75% [13],[14],[24]     5.75% [13],[14],[24] 5.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,853 [13],[14],[24]                    
Investment, Identifier [Axis]: Diamond Parent Holdings Corp, Wholly-owned subsidiaries                          
Number of investments held | investment     2 2   2 2 2 2        
Investment, Identifier [Axis]: Diligent Corporation , First lien - Undrawn                          
Principal amount or par value       $ 1,667 [10],[11],[15],[17],[40]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ (33) [10],[11],[17],[40]                    
Fair Value, Ending Balance       (33) [10],[11],[17],[40]                  
Investment, Identifier [Axis]: Diligent Corporation, First Lien - Drawn                          
Principal amount or par value       $ 1,957 [10],[11],[15],[17]                  
Spread       6.25% [10],[11],[17]       6.25% [10],[11],[17] 6.25% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,919 [10],[11],[17]                    
Fair Value, Ending Balance       $ 1,919 [10],[11],[17]                  
Investment, Identifier [Axis]: Diligent Corporation, First Lien 1                          
Principal amount or par value       $ 17,404 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,998 [10],[18]                    
Fair Value, Ending Balance       $ 16,998 [10],[18]                  
Investment, Identifier [Axis]: Diligent Corporation, First Lien 2                          
Principal amount or par value       $ 5,768 [10],[11],[15]                  
Spread       6.25% [10],[11]       6.25% [10],[11] 6.25% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,654 [10],[11]                    
Fair Value, Ending Balance       $ 5,654 [10],[11]                  
Investment, Identifier [Axis]: Diligent Corporation, First Lien 3                          
Principal amount or par value       $ 5,679 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 5,546 [10],[18]                    
Fair Value, Ending Balance       $ 5,546 [10],[18]                  
Investment, Identifier [Axis]: Diligent Corporation, First lien                          
Number of investments held | investment     2 3   2 2 3 3        
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 1                          
Principal amount or par value     $ 2,265 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 2                          
Principal amount or par value     3,398 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Diligent Corporation, First lien 1                          
Principal amount or par value     $ 19,821 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 19,821 [13],[22],[23]                    
Investment, Identifier [Axis]: Diligent Corporation, First lien 2                          
Principal amount or par value     $ 3,398 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,398 [13],[14],[24]                    
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc., Preferred shares                          
Preferred equity dividend rate       10.50%                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,162 [10],[11],[40]                    
Fair Value, Ending Balance     13,609 [13],[14],[41] $ 12,162 [10],[11],[40]                  
Investment, Identifier [Axis]: EAB Global, Inc. Second Lien                          
Principal amount or par value       $ 14,868 [10],[15],[18]                  
Spread       6.50% [10],[18]       6.50% [10],[18] 6.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     14,868 [10],[18]                    
Fair Value, Ending Balance       $ 14,868 [10],[18]                  
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 1                          
Principal amount or par value     $ 10,628 [13],[20],[22],[23] 10,676 [10],[15],[18]                  
Spread     7.50% [13],[22],[23]     7.50% [13],[22],[23] 7.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 10,676 [10],[18]                    
Fair Value, Ending Balance     10,628 [13],[22],[23] 10,676 [10],[18]                  
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 2                          
Principal amount or par value     $ 340 [13],[14],[20] 342 [10],[11],[15]                  
Spread     7.50% [13],[14]     7.50% [13],[14] 7.50% [13],[14]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 342 [10],[11]                    
Fair Value, Ending Balance     340 [13],[14] 342 [10],[11]                  
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     6,855 [10],[11]                    
Fair Value, Ending Balance     8,188 [13],[14] 6,855 [10],[11]                  
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien                          
Principal amount or par value     $ 7,113 [13],[20],[25],[42]                    
Spread     4.75% [13],[25],[42]     4.75% [13],[25],[42] 4.75% [13],[25],[42]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,078 [13],[25],[42]                    
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 1                          
Principal amount or par value     1,206 [13],[20],[21],[25]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (6) [13],[21],[25]                    
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 2                          
Principal amount or par value     4,190 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (21) [13],[14],[21]                    
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, Ending Balance     305 [13],[14]                    
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, Ending Balance     2,900 [13],[14]                    
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, Ending Balance     2,702 [13],[14],[32]                    
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, Ending Balance     1,952 [13],[25],[42]                    
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC, Subordinated                          
Principal amount or par value     22,290 [13],[14],[20] $ 18,635 [10],[11],[15]                  
Spread       7.50% [10],[11],[31]       7.50% [10],[11],[31] 7.50% [10],[11],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,635 [10],[11]                    
Fair Value, Ending Balance     22,290 [13],[14] $ 18,635 [10],[11]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First Lien - Drawn 1                          
Principal amount or par value       $ 4,503 [10],[11],[15],[17]                  
Spread       6.00% [10],[11],[17]       6.00% [10],[11],[17] 6.00% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,466 [10],[11],[17]                    
Fair Value, Ending Balance       $ 4,466 [10],[11],[17]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First Lien - Drawn 2                          
Principal amount or par value       $ 315 [10],[11],[15],[17]                  
Spread       5.75% [10],[11],[17]       5.75% [10],[11],[17] 5.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     310 [10],[11],[17]                    
Fair Value, Ending Balance       $ 310 [10],[11],[17]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First Lien 1                          
Principal amount or par value       $ 10,290 [10],[15],[38]                  
Spread       5.75% [10],[38]       5.75% [10],[38] 5.75% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,125 [10],[38]                    
Fair Value, Ending Balance       $ 10,125 [10],[38]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First Lien 2                          
Principal amount or par value       $ 3,454 [10],[15],[38]                  
Spread       5.75% [10],[38]       5.75% [10],[38] 5.75% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,398 [10],[38]                    
Fair Value, Ending Balance       $ 3,398 [10],[38]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First Lien 3                          
Principal amount or par value       $ 3,432 [10],[15],[38]                  
Spread       5.75% [10],[38]       5.75% [10],[38] 5.75% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 3,378 [10],[38]                    
Fair Value, Ending Balance       $ 3,378 [10],[38]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien                          
Number of investments held | investment     3 3   3 3 3 3        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn                          
Principal amount or par value     $ 1,400 [13],[14],[20],[21],[43]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21],[43]                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 1                          
Principal amount or par value       $ 1,229 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (10) [10],[11],[17]                    
Fair Value, Ending Balance       (10) [10],[11],[17]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 2                          
Principal amount or par value       1,085 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (17) [10],[11],[17]                    
Fair Value, Ending Balance       (17) [10],[11],[17]                  
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 1                          
Principal amount or par value     $ 10,185 [13],[20],[39]                    
Spread     5.75% [13],[39]     5.75% [13],[39] 5.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 10,185 [13],[39]                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 2                          
Principal amount or par value     $ 5,677 [13],[14],[20],[24]                    
Spread     6.00% [13],[14],[24]     6.00% [13],[14],[24] 6.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,677 [13],[14],[24]                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 3                          
Principal amount or par value     $ 3,419 [13],[20],[39]                    
Spread     5.75% [13],[39]     5.75% [13],[39] 5.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,419 [13],[39]                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 4                          
Principal amount or par value     $ 3,397 [13],[20],[39]                    
Spread     5.75% [13],[39]     5.75% [13],[39] 5.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,397 [13],[39]                    
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC, Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,454 [10],[38],[44]                    
Fair Value, Ending Balance     4,618 [13],[39],[43] 4,454 [10],[38],[44]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien - Drawn                          
Principal amount or par value       $ 1,006 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,006 [10],[11],[17]                    
Fair Value, Ending Balance       $ 1,006 [10],[11],[17]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien 1                          
Principal amount or par value       $ 33,698 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     33,698 [10],[18]                    
Fair Value, Ending Balance       $ 33,698 [10],[18]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First Lien 2                          
Principal amount or par value       $ 347 [10],[11],[15]                  
Spread       5.50% [10],[11]       5.50% [10],[11] 5.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     347 [10],[11]                    
Fair Value, Ending Balance       $ 347 [10],[11]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 1                          
Principal amount or par value     3,312 [13],[14],[20],[21] 4,557 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 2                          
Principal amount or par value     2,095 [13],[14],[20],[21] 1,090 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 1                          
Principal amount or par value     $ 33,356 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 33,356 [13],[22],[23]                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 2                          
Principal amount or par value     $ 4,075 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,075 [13],[14],[24]                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien - Drawn 1                          
Principal amount or par value       $ 143 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     142 [10],[11],[17]                    
Fair Value, Ending Balance       $ 142 [10],[11],[17]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien - Drawn 2                          
Principal amount or par value       $ 138 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     138 [10],[11],[17]                    
Fair Value, Ending Balance       $ 138 [10],[11],[17]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien 1                          
Principal amount or par value       $ 17,353 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     17,243 [10],[18]                    
Fair Value, Ending Balance       $ 17,243 [10],[18]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien 2                          
Principal amount or par value       $ 10,092 [10],[15],[19]                  
Spread       5.50% [10],[19]       5.50% [10],[19] 5.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,028 [10],[19]                    
Fair Value, Ending Balance       $ 10,028 [10],[19]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien 3                          
Principal amount or par value       $ 1,178 [10],[11],[15]                  
Spread       5.50% [10],[11]       5.50% [10],[11] 5.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,171 [10],[11]                    
Fair Value, Ending Balance       $ 1,171 [10],[11]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First Lien 4                          
Principal amount or par value       $ 80 [10],[11],[15]                  
Spread       5.50% [10],[11]       5.50% [10],[11] 5.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     80 [10],[11]                    
Fair Value, Ending Balance       $ 80 [10],[11]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 1                          
Principal amount or par value     $ 1,001 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,001 [13],[14],[21]                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 2                          
Principal amount or par value     $ 342 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 342 [13],[14],[21]                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 1                          
Principal amount or par value     3,360 [13],[14],[20],[21] 2,718 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (17) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (17) [10],[11],[17]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 2                          
Principal amount or par value     1,859 [13],[14],[20],[21] 4,435 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (28) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (28) [10],[11],[17]                  
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 1                          
Principal amount or par value     $ 17,176 [13],[20],[22],[23]                    
Spread     5.50% [13],[22],[23]     5.50% [13],[22],[23] 5.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 17,176 [13],[22],[23]                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 2                          
Principal amount or par value     $ 12,020 [13],[14],[20],[24]                    
Spread     5.50% [13],[14],[24]     5.50% [13],[14],[24] 5.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 12,020 [13],[14],[24]                    
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 3                          
Principal amount or par value     $ 80 [13],[14],[20]                    
Spread     5.50% [13],[14]     5.50% [13],[14] 5.50% [13],[14]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 80 [13],[14]                    
Investment, Identifier [Axis]: Foundational Education Group, Inc. Second Lien 1                          
Principal amount or par value       $ 22,500 [10],[15],[38]                  
Spread       6.50% [10],[38]       6.50% [10],[38] 6.50% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,100 [10],[38]                    
Fair Value, Ending Balance       $ 22,100 [10],[38]                  
Investment, Identifier [Axis]: Foundational Education Group, Inc. Second Lien 2                          
Principal amount or par value       $ 7,009 [10],[15],[18]                  
Spread       6.50% [10],[18]       6.50% [10],[18] 6.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,884 [10],[18]                    
Fair Value, Ending Balance       $ 6,884 [10],[18]                  
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 1                          
Principal amount or par value     $ 22,500 [13],[20],[39]                    
Spread     6.50% [13],[39]     6.50% [13],[39] 6.50% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,500 [13],[39]                    
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 2                          
Principal amount or par value     $ 7,009 [13],[20],[22],[23]                    
Spread     6.50% [13],[22],[23]     6.50% [13],[22],[23] 6.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,009 [13],[22],[23]                    
Investment, Identifier [Axis]: GC Waves Holdings, Inc. First Lien - Drawn                          
Principal amount or par value       $ 451 [10],[15],[17],[18]                  
Spread       6.00% [10],[17],[18]       6.00% [10],[17],[18] 6.00% [10],[17],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     451 [10],[17],[18]                    
Fair Value, Ending Balance       $ 451 [10],[17],[18]                  
Investment, Identifier [Axis]: GC Waves Holdings, Inc. First Lien 1                          
Principal amount or par value       $ 40,270 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     40,270 [10],[18]                    
Fair Value, Ending Balance       $ 40,270 [10],[18]                  
Investment, Identifier [Axis]: GC Waves Holdings, Inc. First Lien 2                          
Principal amount or par value       $ 21,666 [10],[15],[38]                  
Spread       6.00% [10],[38]       6.00% [10],[38] 6.00% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,666 [10],[38]                    
Fair Value, Ending Balance       $ 21,666 [10],[38]                  
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Undrawn                          
Principal amount or par value     3,951 [13],[14],[20],[21] 3,951 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 1                          
Principal amount or par value     $ 40,312 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 40,312 [13],[22],[23]                    
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 2                          
Principal amount or par value     $ 21,448 [13],[20],[39]                    
Spread     4.75% [13],[39]     4.75% [13],[39] 4.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,448 [13],[39]                    
Investment, Identifier [Axis]: GEDC Equity, LLC, Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     150 [10],[11]                    
Fair Value, Ending Balance       150 [10],[11]                  
Investment, Identifier [Axis]: GEDC Equity, LLC, Participation Interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     50 [13],[14]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc. First Lien 1                          
Principal amount or par value       $ 34,023 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     34,023 [10],[18]                    
Fair Value, Ending Balance       $ 34,023 [10],[18]                  
Investment, Identifier [Axis]: GS Acquisitionco, Inc. First Lien 2                          
Principal amount or par value       $ 21,521 [10],[15],[38]                  
Spread       5.50% [10],[38]       5.50% [10],[38] 5.50% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,521 [10],[38]                    
Fair Value, Ending Balance       $ 21,521 [10],[38]                  
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn                          
Principal amount or par value     $ 319 [13],[14],[20],[21]                    
Spread     5.25% [13],[14],[21]     5.25% [13],[14],[21] 5.25% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 319 [13],[14],[21]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn                          
Principal amount or par value       3,730 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,120 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 2                          
Principal amount or par value     4,821 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 1                          
Principal amount or par value     $ 34,719 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 34,719 [13],[22],[23]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 2                          
Principal amount or par value     $ 21,297 [13],[20],[39]                    
Spread     5.25% [13],[39]     5.25% [13],[39] 5.25% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,297 [13],[39]                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 3                          
Principal amount or par value     $ 2,909 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,909 [13],[14],[24]                    
Investment, Identifier [Axis]: Galway Borrower LLC, First lien                          
Principal amount or par value     $ 1,806 [13],[14],[20],[21]                    
Spread     4.50% [13],[14],[21]     4.50% [13],[14],[21] 4.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,788 [13],[14],[21]                    
Investment, Identifier [Axis]: Galway Borrower LLC, First lien - Drawn                          
Principal amount or par value     $ 1,090 [13],[20],[22],[23]                    
Spread     4.50% [13],[22],[23]     4.50% [13],[22],[23] 4.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,080 [13],[22],[23]                    
Investment, Identifier [Axis]: Granicus, Inc. First Lien - Drawn                          
Principal amount or par value       $ 579 [10],[11],[15],[17]                  
Spread       6.50% [10],[11],[17]       6.50% [10],[11],[17] 6.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     579 [10],[11],[17]                    
Fair Value, Ending Balance       $ 579 [10],[11],[17]                  
Investment, Identifier [Axis]: Granicus, Inc. First Lien 1                          
Principal amount or par value       $ 15,463 [10],[15],[16]                  
Spread       5.50% [10],[16],[31]       5.50% [10],[16],[31] 5.50% [10],[16],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     15,463 [10],[16]                    
Fair Value, Ending Balance       $ 15,463 [10],[16]                  
Investment, Identifier [Axis]: Granicus, Inc. First Lien 2                          
Principal amount or par value       $ 5,981 [10],[15],[19]                  
Spread       5.50% [10],[19],[31]       5.50% [10],[19],[31] 5.50% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,981 [10],[19]                    
Fair Value, Ending Balance       $ 5,981 [10],[19]                  
Investment, Identifier [Axis]: Granicus, Inc. First Lien 3                          
Principal amount or par value       $ 5,899 [10],[15],[18]                  
Spread       5.50% [10],[18],[31]       5.50% [10],[18],[31] 5.50% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,899 [10],[18]                    
Fair Value, Ending Balance       $ 5,899 [10],[18]                  
Investment, Identifier [Axis]: Granicus, Inc. First Lien 4                          
Principal amount or par value       $ 4,542 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,542 [10],[18]                    
Fair Value, Ending Balance       $ 4,542 [10],[18]                  
Investment, Identifier [Axis]: Granicus, Inc., First lien - Undrawn 2                          
Principal amount or par value       1,834 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien                          
Principal amount or par value     $ 17,901 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 17,856 [13],[22],[23]                    
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Drawn                          
Principal amount or par value     $ 448 [13],[14],[20],[21]                    
Spread     4.75% [13],[14],[21]     4.75% [13],[14],[21] 4.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 446 [13],[14],[21]                    
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 1                          
Principal amount or par value     1,682 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (4) [13],[14],[21]                    
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 2                          
Principal amount or par value     4,038 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (10) [13],[14],[21]                    
Investment, Identifier [Axis]: Greenway Health, LLC, First Lien                          
Principal amount or par value       $ 6,349 [15],[19]                  
Spread       6.75% [19]       6.75% [19] 6.75% [19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,254 [19]                    
Fair Value, Ending Balance       $ 6,254 [19]                  
Investment, Identifier [Axis]: Greenway Health, LLC, First lien                          
Principal amount or par value     $ 6,302 [13],[14],[20],[24]                    
Spread     6.75% [13],[14],[24]     6.75% [13],[14],[24] 6.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,302 [13],[14],[24]                    
Investment, Identifier [Axis]: Groundworks, LLC, First Lien                          
Principal amount or par value       $ 19,517 [10],[15],[16]                  
Spread       6.50% [10],[16]       6.50% [10],[16] 6.50% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     19,330 [10],[16]                    
Fair Value, Ending Balance       $ 19,330 [10],[16]                  
Investment, Identifier [Axis]: Groundworks, LLC, First lien                          
Principal amount or par value     $ 18,908 [20],[25]                    
Spread     3.25% [25]     3.25% [25] 3.25% [25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 19,034 [25]                    
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Drawn                          
Principal amount or par value     $ 557 [20],[21],[25]                    
Spread     3.25% [21],[25]     3.25% [21],[25] 3.25% [21],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 560 [21],[25]                    
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Undrawn                          
Principal amount or par value     2,938 [20],[21],[25]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     20 [21],[25]                    
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Undrawn 1                          
Principal amount or par value       891 [10],[15],[16],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (9) [10],[16],[17]                    
Fair Value, Ending Balance       (9) [10],[16],[17]                  
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Undrawn 2                          
Principal amount or par value       1,076 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (10) [10],[11],[17]                    
Fair Value, Ending Balance       (10) [10],[11],[17]                  
Investment, Identifier [Axis]: HB Wealth Management, LLC, Preferred shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 5,125 [10],[45]                    
Fair Value, Ending Balance       5,125 [10],[45]                  
Investment, Identifier [Axis]: HBWM Holdings, LLC, Ordinary shares                          
Spread     4.00% [13],[46]     4.00% [13],[46] 4.00% [13],[46]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,532 [13],[46]                    
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. Second Lien 1                          
Principal amount or par value       $ 22,500 [10],[15],[38]                  
Spread       6.75% [10],[38]       6.75% [10],[38] 6.75% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,059 [10],[38]                    
Fair Value, Ending Balance       $ 21,059 [10],[38]                  
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. Second Lien 2                          
Principal amount or par value       $ 4,208 [10],[15],[18]                  
Spread       6.75% [10],[18]       6.75% [10],[18] 6.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,938 [10],[18]                    
Fair Value, Ending Balance       $ 3,938 [10],[18]                  
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 1                          
Principal amount or par value     $ 22,500 [20],[39]                    
Spread     6.75% [39]     6.75% [39] 6.75% [39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,513 [39]                    
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 2                          
Principal amount or par value     $ 4,208 [20],[22],[23]                    
Spread     6.75% [22],[23]     6.75% [22],[23] 6.75% [22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,714 [22],[23]                    
Investment, Identifier [Axis]: Haven Midstream Holdings LLC, Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,323 [10],[47]                    
Fair Value, Ending Balance       3,323 [10],[47]                  
Investment, Identifier [Axis]: Haven Midstream Holdings LLC, Profit Interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     96 [10],[48]                    
Fair Value, Ending Balance       96 [10],[48]                  
Investment, Identifier [Axis]: Haven Midstream LLC, First lien - Undrawn                          
Principal amount or par value       8,000 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First Lien                          
Principal amount or par value       $ 5,120 [10],[15],[19]                  
Spread       5.75% [10],[19]       5.75% [10],[19] 5.75% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,069 [10],[19]                    
Fair Value, Ending Balance       $ 5,069 [10],[19]                  
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien                          
Principal amount or par value     $ 5,069 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,069 [13],[14],[24]                    
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien - Undrawn                          
Principal amount or par value     1,229 [13],[14],[20],[21] 1,229 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (12) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (12) [10],[11],[17]                  
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien                          
Principal amount or par value     $ 3,808 [13],[14],[20],[24]                    
Spread     4.50% [13],[14],[24]     4.50% [13],[14],[24] 4.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,808 [13],[14],[24]                    
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Drawn                          
Principal amount or par value     $ 2,313 [13],[14],[20],[21]                    
Spread     4.75% [13],[14],[21]     4.75% [13],[14],[21] 4.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,313 [13],[14],[21]                    
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Undrawn                          
Principal amount or par value     5,676 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First Lien                          
Principal amount or par value       $ 6,822 [15],[19]                  
Spread       5.25% [19]       5.25% [19] 5.25% [19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,704 [19]                    
Fair Value, Ending Balance       $ 6,704 [19]                  
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First lien                          
Principal amount or par value     $ 14,484 [14],[20],[24]                    
Spread     5.25% [14],[24]     5.25% [14],[24] 5.25% [14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,291 [14],[24]                    
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First Lien 1                          
Principal amount or par value       $ 28,839 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     28,839 [10],[18]                    
Fair Value, Ending Balance       $ 28,839 [10],[18]                  
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First Lien 2                          
Principal amount or par value       $ 4,214 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,214 [10],[18]                    
Fair Value, Ending Balance       $ 4,214 [10],[18]                  
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien - Undrawn                          
Principal amount or par value     3,780 [13],[14],[20],[21] 2,298 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 1                          
Principal amount or par value     $ 32,799 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 32,799 [13],[22],[23]                    
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 2                          
Principal amount or par value     $ 2,542 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,542 [13],[14],[24]                    
Investment, Identifier [Axis]: IMO Investor Holdings, Inc. First Lien                          
Principal amount or par value       $ 12,844 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,742 [10],[18]                    
Fair Value, Ending Balance       $ 12,742 [10],[18]                  
Investment, Identifier [Axis]: IMO Investor Holdings, Inc. First Lien - Drawn 1                          
Principal amount or par value       $ 1,139 [10],[11],[15],[17]                  
Spread       6.00% [10],[11],[17]       6.00% [10],[11],[17] 6.00% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,130 [10],[11],[17]                    
Fair Value, Ending Balance       $ 1,130 [10],[11],[17]                  
Investment, Identifier [Axis]: IMO Investor Holdings, Inc. First Lien - Drawn 2                          
Principal amount or par value       $ 62 [10],[11],[15],[17]                  
Spread       6.00% [10],[11],[17]       6.00% [10],[11],[17] 6.00% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     61 [10],[11],[17]                    
Fair Value, Ending Balance       $ 61 [10],[11],[17]                  
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value       1,487 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (12) [10],[11],[17]                    
Fair Value, Ending Balance       (12) [10],[11],[17]                  
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value       1,951 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (16) [10],[11],[17]                    
Fair Value, Ending Balance       (16) [10],[11],[17]                  
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien                          
Principal amount or par value     $ 8,696 [13],[14],[20],[24]                    
Spread     6.50% [13],[14],[24]     6.50% [13],[14],[24] 6.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 8,696 [13],[14],[24]                    
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien - Undrawn                          
Principal amount or par value     828 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Idera, Inc. Secnd Lien 1                          
Principal amount or par value       $ 22,500 [10],[15],[16]                  
Spread       6.75% [10],[16]       6.75% [10],[16] 6.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,500 [10],[16]                    
Fair Value, Ending Balance       $ 22,500 [10],[16]                  
Investment, Identifier [Axis]: Idera, Inc. Secnd Lien 2                          
Principal amount or par value       $ 3,000 [10],[11],[15]                  
Spread       6.75% [10],[11]       6.75% [10],[11] 6.75% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,000 [10],[11]                    
Fair Value, Ending Balance       $ 3,000 [10],[11]                  
Investment, Identifier [Axis]: Idera, Inc., Second lien 1                          
Principal amount or par value     $ 15,091 [13],[20],[25]                    
Spread     6.75% [13],[25]     6.75% [13],[25] 6.75% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 15,091 [13],[25]                    
Investment, Identifier [Axis]: Idera, Inc., Second lien 2                          
Principal amount or par value     $ 2,012 [13],[14],[20],[24]                    
Spread     6.75% [13],[14],[24]     6.75% [13],[14],[24] 6.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,012 [13],[14],[24]                    
Investment, Identifier [Axis]: Infogain Corporation, First Lien 1                          
Principal amount or par value       $ 18,707 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,707 [10],[18]                    
Fair Value, Ending Balance       $ 18,707 [10],[18]                  
Investment, Identifier [Axis]: Infogain Corporation, First Lien 2                          
Principal amount or par value       $ 7,844 [10],[15],[19]                  
Spread       5.50% [10],[19]       5.50% [10],[19] 5.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,844 [10],[19]                    
Fair Value, Ending Balance       $ 7,844 [10],[19]                  
Investment, Identifier [Axis]: Infogain Corporation, First lien - Undrawn                          
Principal amount or par value     3,827 [13],[14],[20],[21] 3,827 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Infogain Corporation, First lien 1                          
Principal amount or par value     $ 18,372 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 18,372 [13],[22],[23]                    
Investment, Identifier [Axis]: Infogain Corporation, First lien 2                          
Principal amount or par value     $ 7,764 [13],[14],[20],[24]                    
Spread     5.75% [13],[14],[24]     5.75% [13],[14],[24] 5.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,764 [13],[14],[24]                    
Investment, Identifier [Axis]: Infogain Corporation, Subordinated                          
Principal amount or par value     $ 16,953 [13],[14],[20] $ 17,245 [10],[11],[15]                  
Spread     7.50% [13],[14] 8.25% [10],[11]   7.50% [13],[14] 7.50% [13],[14] 8.25% [10],[11] 8.25% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 17,245 [10],[11]                    
Fair Value, Ending Balance     16,953 [13],[14] $ 17,245 [10],[11]                  
Investment, Identifier [Axis]: Integro Parent Inc., First lien 1                          
Principal amount or par value       4,086 [10],[15],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,086 [10],[18]                    
Fair Value, Ending Balance       4,086 [10],[18]                  
Investment, Identifier [Axis]: Integro Parent Inc., First lien 2                          
Principal amount or par value       807 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     807 [10],[11]                    
Fair Value, Ending Balance       807 [10],[11]                  
Investment, Identifier [Axis]: Integro Parent Inc., Second lien                          
Principal amount or par value     7,091 [13],[14],[20],[24],[29] 13,657 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,231 [10],[11]                    
Fair Value, Ending Balance     $ 6,331 [13],[14],[24],[29] 13,231 [10],[11]                  
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd, Structured Finance Obligations                          
Spread     7.00% [14],[29]     7.00% [14],[29] 7.00% [14],[29]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,232 [14],[29]                    
Investment, Identifier [Axis]: KAMC Holdings, Inc, Second Lien 1                          
Principal amount or par value       $ 18,750 [10],[15],[18]                  
Spread       8.00% [10],[18]       8.00% [10],[18] 8.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     17,079 [10],[18]                    
Fair Value, Ending Balance       $ 17,079 [10],[18]                  
Investment, Identifier [Axis]: KAMC Holdings, Inc, Second Lien 2                          
Principal amount or par value       $ 18,750 [10],[15],[19]                  
Spread       8.00% [10],[19]       8.00% [10],[19] 8.00% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     17,079 [10],[19]                    
Fair Value, Ending Balance       $ 17,079 [10],[19]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc. First Lien - Drawn 1                          
Principal amount or par value       $ 1,160 [10],[15],[17],[18]                  
Spread       5.25% [10],[17],[18]       5.25% [10],[17],[18] 5.25% [10],[17],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,138 [10],[17],[18]                    
Fair Value, Ending Balance       $ 1,138 [10],[17],[18]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc. First Lien - Drawn 2                          
Principal amount or par value       $ 19 [10],[11],[15],[17]                  
Spread       5.75% [10],[11],[17]       5.75% [10],[11],[17] 5.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     19 [10],[11],[17]                    
Fair Value, Ending Balance       $ 19 [10],[11],[17]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc. First Lien 1                          
Principal amount or par value       $ 6,898 [10],[15],[19]                  
Spread       5.25% [10],[19]       5.25% [10],[19] 5.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,763 [10],[19]                    
Fair Value, Ending Balance       $ 6,763 [10],[19]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc. First Lien 2                          
Principal amount or par value       $ 790 [10],[15],[18]                  
Spread       5.25% [10],[18]       5.25% [10],[18] 5.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     774 [10],[18]                    
Fair Value, Ending Balance       $ 774 [10],[18]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Drawn                          
Principal amount or par value     $ 19 [13],[14],[20],[21]                    
Spread     5.75% [13],[14],[21]     5.75% [13],[14],[21] 5.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 18 [13],[14],[21]                    
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Undrawn                          
Principal amount or par value     1,568 [13],[14],[20],[21] 1,568 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (16) [10],[11],[17]                    
Fair Value, Ending Balance     (47) [13],[14],[21] (16) [10],[11],[17]                  
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 1                          
Principal amount or par value     $ 6,827 [13],[14],[20],[24]                    
Spread     5.50% [13],[14],[24]     5.50% [13],[14],[24] 5.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,570 [13],[14],[24]                    
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 2                          
Principal amount or par value     $ 1,149 [13],[14],[20],[24]                    
Spread     5.50% [13],[14],[24]     5.50% [13],[14],[24] 5.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,106 [13],[14],[24]                    
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 3                          
Principal amount or par value     $ 782 [13],[14],[20],[24]                    
Spread     5.50% [13],[14],[24]     5.50% [13],[14],[24] 5.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 752 [13],[14],[24]                    
Investment, Identifier [Axis]: Kaseya Inc. First Lien                          
Principal amount or par value       $ 63,633 [10],[15],[18]                  
Spread       3.50% [10],[18],[31]       3.50% [10],[18],[31] 3.50% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     63,633 [10],[18]                    
Fair Value, Ending Balance       $ 63,633 [10],[18]                  
Investment, Identifier [Axis]: Kaseya Inc. First Lien - Drawn 1                          
Principal amount or par value       $ 973 [10],[11],[15],[17]                  
Spread       5.50% [10],[11],[17]       5.50% [10],[11],[17] 5.50% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     973 [10],[11],[17]                    
Fair Value, Ending Balance       $ 973 [10],[11],[17]                  
Investment, Identifier [Axis]: Kaseya Inc. First Lien - Drawn 2                          
Principal amount or par value       $ 237 [10],[11],[15],[17]                  
Spread       3.50% [10],[11],[17],[31]       3.50% [10],[11],[17],[31] 3.50% [10],[11],[17],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     237 [10],[11],[17]                    
Fair Value, Ending Balance       $ 237 [10],[11],[17]                  
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 1                          
Principal amount or par value     $ 973 [13],[14],[20],[21],[24]                    
Spread     5.50% [13],[14],[21],[24]     5.50% [13],[14],[21],[24] 5.50% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 973 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 2                          
Principal amount or par value     $ 751 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 751 [13],[14],[21]                    
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 1                          
Principal amount or par value     2,865 [13],[14],[20],[21] 3,616 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 2                          
Principal amount or par value     2,888 [13],[14],[20],[21] 2,888 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Kaseya Inc., First lien 1                          
Principal amount or par value     $ 64,124 [13],[20],[22],[23]                    
Spread     5.50% [13],[22],[23]     5.50% [13],[22],[23] 5.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 64,124 [13],[22],[23]                    
Investment, Identifier [Axis]: Kaseya Inc., First lien 2                          
Principal amount or par value     $ 238 [13],[14],[20],[24]                    
Spread     5.50% [13],[14],[24]     5.50% [13],[14],[24] 5.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 238 [13],[14],[24]                    
Investment, Identifier [Axis]: Kaseya, Inc., First lien                          
Number of investments held | investment     2     2 2            
Investment, Identifier [Axis]: Kele Holdco, Inc. First Lien                          
Principal amount or par value       $ 14,796 [10],[15],[38]                  
Spread       5.25% [10],[38]       5.25% [10],[38] 5.25% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 14,796 [10],[38]                    
Fair Value, Ending Balance       $ 14,796 [10],[38]                  
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Undrawn                          
Principal amount or par value       1,799 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Undrawn                          
Principal amount or par value     1,799 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 1                          
Principal amount or par value     $ 14,635 [13],[20],[39]                    
Spread     4.50% [13],[39]     4.50% [13],[39] 4.50% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,635 [13],[39]                    
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 2                          
Principal amount or par value     $ 2,268 [13],[20],[39]                    
Spread     4.50% [13],[39]     4.50% [13],[39] 4.50% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,268 [13],[39]                    
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien                          
Principal amount or par value     $ 3,509 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,509 [13],[22],[23]                    
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Drawn                          
Principal amount or par value     $ 162 [13],[14],[20],[21]                    
Spread     5.25% [13],[14],[21]     5.25% [13],[14],[21] 5.25% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 162 [13],[14],[21]                    
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,398 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 2                          
Principal amount or par value     468 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
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     17,019 [10],[11],[49]                    
Fair Value, Ending Balance     21,010 [13],[14],[50] $ 17,019 [10],[11],[49]                  
Investment, Identifier [Axis]: Knockout Intermediate Holdings I, Preferred shares                          
Preferred equity dividend rate       11.75%                  
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien                          
Principal amount or par value     $ 6,124 [13],[20],[39]                    
Spread     2.75% [13],[27],[39]     2.75% [13],[27],[39] 2.75% [13],[27],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,062 [13],[39]                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Drawn                          
Principal amount or par value     $ 72 [13],[14],[20],[21]                    
Spread     5.00% [13],[14],[21]     5.00% [13],[14],[21] 5.00% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 71 [13],[14],[21]                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 1                          
Principal amount or par value     358 [13],[20],[21],[39]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (4) [13],[21],[39]                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 2                          
Principal amount or par value     644 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (6) [13],[14],[21]                    
Investment, Identifier [Axis]: Logrhythm, Inc., First lien                          
Principal amount or par value     $ 4,196 [13],[14],[20],[24]                    
Spread     7.50% [13],[14],[24]     7.50% [13],[14],[24] 7.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,196 [13],[14],[24]                    
Investment, Identifier [Axis]: Logrhythm, Inc., First lien - Undrawn                          
Principal amount or par value     420 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: MED Parentco, LP, Second Lien                          
Principal amount or par value       $ 20,857 [10],[15],[19]                  
Spread       8.25% [10],[19]       8.25% [10],[19] 8.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     20,119 [10],[19]                    
Fair Value, Ending Balance       $ 20,119 [10],[19]                  
Investment, Identifier [Axis]: MRI Software LLC, First Lien 1                          
Principal amount or par value       $ 21,655 [10],[15],[38]                  
Spread       5.50% [10],[38]       5.50% [10],[38] 5.50% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     21,598 [10],[38]                    
Fair Value, Ending Balance       $ 21,598 [10],[38]                  
Investment, Identifier [Axis]: MRI Software LLC, First Lien 2                          
Principal amount or par value       $ 7,670 [10],[11],[15]                  
Spread       5.50% [10],[11]       5.50% [10],[11] 5.50% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,650 [10],[11]                    
Fair Value, Ending Balance       $ 7,650 [10],[11]                  
Investment, Identifier [Axis]: MRI Software LLC, First Lien 3                          
Principal amount or par value       $ 4,568 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,557 [10],[18]                    
Fair Value, Ending Balance       $ 4,557 [10],[18]                  
Investment, Identifier [Axis]: MRI Software LLC, First Lien 4                          
Principal amount or par value       $ 3,140 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,132 [10],[18]                    
Fair Value, Ending Balance       $ 3,132 [10],[18]                  
Investment, Identifier [Axis]: MRI Software LLC, First Lien 5                          
Principal amount or par value       $ 801 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     800 [10],[18]                    
Fair Value, Ending Balance       $ 800 [10],[18]                  
Investment, Identifier [Axis]: MRI Software LLC, First lien - Drawn                          
Principal amount or par value     $ 111 [13],[14],[20],[21]                    
Spread     4.75% [13],[14],[21]     4.75% [13],[14],[21] 4.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 111 [13],[14],[21]                    
Investment, Identifier [Axis]: MRI Software LLC, First lien - Undrawn                          
Principal amount or par value     1,891 [13],[14],[20],[21] 2,002 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (5) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (5) [10],[11],[17]                  
Investment, Identifier [Axis]: MRI Software LLC, First lien 1                          
Principal amount or par value     $ 21,430 [13],[20],[39]                    
Spread     4.75% [13],[39]     4.75% [13],[39] 4.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,430 [13],[39]                    
Investment, Identifier [Axis]: MRI Software LLC, First lien 2                          
Principal amount or par value     $ 7,591 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24]     4.75% [13],[14],[24] 4.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,591 [13],[14],[24]                    
Investment, Identifier [Axis]: MRI Software LLC, First lien 3                          
Principal amount or par value     $ 4,521 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,521 [13],[22],[23]                    
Investment, Identifier [Axis]: MRI Software LLC, First lien 4                          
Principal amount or par value     $ 3,107 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,107 [13],[22],[23]                    
Investment, Identifier [Axis]: MRI Software LLC, First lien 5                          
Principal amount or par value     $ 793 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24]     4.75% [13],[14],[24] 4.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 793 [13],[14],[24]                    
Investment, Identifier [Axis]: Michael Baker International, LLC, First lien                          
Principal amount or par value     $ 4,892 [14],[20],[24]                    
Spread     4.75% [14],[24]     4.75% [14],[24] 4.75% [14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,910 [14],[24]                    
Investment, Identifier [Axis]: Model N, Inc., First lien                          
Principal amount or par value     $ 44,218 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 43,997 [13],[22],[23]                    
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 1                          
Principal amount or par value     4,825 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (24) [13],[14],[21]                    
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 2                          
Principal amount or par value     9,047 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (45) [13],[14],[21]                    
Investment, Identifier [Axis]: NC Topco, LLC, First lien                          
Principal amount or par value     $ 5,853 [13],[20],[22],[23]                    
Spread     2.50% [13],[22],[23],[27]     2.50% [13],[22],[23],[27] 2.50% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,824 [13],[22],[23]                    
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 1                          
Principal amount or par value     669 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (3) [13],[14],[21]                    
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 2                          
Principal amount or par value     1,672 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (8) [13],[14],[21]                    
Investment, Identifier [Axis]: NHME Holdings Corp., Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[51]                    
Fair Value, Ending Balance     0 [13],[14],[52] 0 [10],[11],[51]                  
Investment, Identifier [Axis]: NHME Holdings Corp., Warrants                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[51]                    
Fair Value, Ending Balance     0 [13],[14],[52] 0 [10],[11],[51]                  
Investment, Identifier [Axis]: NM APP Canada Corp., Membership interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7 [10],[36],[53]                    
Fair Value, Ending Balance       7 [10],[36],[53]                  
Investment, Identifier [Axis]: NM CLFX LP, Membership interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     11,731 [10],[53]                    
Fair Value, Ending Balance       11,731 [10],[53]                  
Investment, Identifier [Axis]: NM GP Holdco, LLC, Membership interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,048 [10],[36],[53]                    
Fair Value, Ending Balance     322 [13],[29],[54] 1,048 [10],[36],[53]                  
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     96,071 [10],[36],[53]                    
Fair Value, Ending Balance     104,512 [13],[29],[54] 96,071 [10],[36],[53]                  
Investment, Identifier [Axis]: NM YI, LLC, Membership interest                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,550 [10],[53]                    
Fair Value, Ending Balance     9,960 [13],[54] 9,550 [10],[53]                  
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc. First Lien - Drawn                          
Principal amount or par value       $ 5,012 [10],[11],[15],[17]                  
Spread       6.09% [10],[11],[17]       6.09% [10],[11],[17] 6.09% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,979 [10],[11],[17]                    
Fair Value, Ending Balance       $ 4,979 [10],[11],[17]                  
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc. First Lien 1                          
Principal amount or par value       $ 19,259 [15]                  
Spread       6.09%       6.09% 6.09%        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     19,133                    
Fair Value, Ending Balance       $ 19,133                  
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc. First Lien 2                          
Principal amount or par value       $ 4,913 [10],[15],[18]                  
Spread       6.09% [10],[18]       6.09% [10],[18] 6.09% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,881 [10],[18]                    
Fair Value, Ending Balance       $ 4,881 [10],[18]                  
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 1                          
Principal amount or par value     $ 19,259 [20]                    
Spread     6.09%     6.09% 6.09%            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 19,259                    
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 2                          
Principal amount or par value     $ 5,012 [13],[14],[20],[24]                    
Spread     6.09% [13],[14],[24]     6.09% [13],[14],[24] 6.09% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,012 [13],[14],[24]                    
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 3                          
Principal amount or par value     $ 4,913 [13],[14],[20],[24]                    
Spread     6.09% [13],[14],[24]     6.09% [13],[14],[24] 6.09% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,913 [13],[14],[24]                    
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     140,000 [10],[11],[36]                    
Fair Value, Ending Balance     160,000 [13],[14],[29] 140,000 [10],[11],[36]                  
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     112,400 [10],[11],[36]                    
Fair Value, Ending Balance     112,400 [13],[14],[29] 112,400 [10],[11],[36]                  
Investment, Identifier [Axis]: National HME, Inc., Second lien                          
Principal amount or par value     8,281 [13],[14],[20],[52] 8,281 [10],[11],[15],[30],[51]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,000 [10],[11],[30],[51]                    
Fair Value, Ending Balance     $ 3,000 [13],[14],[52] $ 3,000 [10],[11],[30],[51]                  
Other Income $ (1,500)                        
Investment, Identifier [Axis]: National HME, Inc., Second lien, Tranche A Term Loan                          
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                          
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]: Ncontracts, LLC, First Lien                          
Principal amount or par value       $ 8,372 [15],[18]                  
Spread       6.50% [18]       6.50% [18] 6.50% [18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 8,267 [18]                    
Fair Value, Ending Balance       $ 8,267 [18]                  
Investment, Identifier [Axis]: Ncontracts, LLC, First lien - Undrawn 1                          
Principal amount or par value       773 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [11],[17]                    
Fair Value, Ending Balance       0 [11],[17]                  
Investment, Identifier [Axis]: Ncontracts, LLC, First lien - Undrawn 2                          
Principal amount or par value       773 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (10) [11],[17]                    
Fair Value, Ending Balance       (10) [11],[17]                  
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, First lien - Drawn 1                          
Principal amount or par value     $ 1,097 [13],[14],[20],[21],[24],[55]                    
Spread     5.50% [13],[14],[21],[24],[55]     5.50% [13],[14],[21],[24],[55] 5.50% [13],[14],[21],[24],[55]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,097 [13],[14],[21],[24],[55]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Drawn 2                          
Principal amount or par value     $ 392 [13],[14],[20],[21]                    
Spread     5.50% [13],[14],[21]     5.50% [13],[14],[21] 5.50% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 405 [13],[14],[21]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 1                          
Principal amount or par value     3,501 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 2                          
Principal amount or par value     6,411 [13],[14],[20],[21],[24],[55]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21],[24],[55]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 3                          
Principal amount or par value     804 [13],[14],[20],[21],[24],[55]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21],[24],[55]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 4                          
Principal amount or par value     1,515 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 0 [13],[14],[21]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 1                          
Principal amount or par value | €           € 16,523 [13],[14],[20],[24],[55]              
Spread     5.50% [13],[14],[24],[55]     5.50% [13],[14],[24],[55] 5.50% [13],[14],[24],[55]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 17,108 [13],[14],[24],[55]                    
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 2                          
Principal amount or par value     $ 9,023 [13],[20],[22],[23]                    
Spread     5.50% [13],[22],[23]     5.50% [13],[22],[23] 5.50% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,023 [13],[22],[23]                    
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 1                          
Principal amount or par value     46,068 [13],[20],[23] 41,731 [10],[15],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     41,731 [10],[18]                    
Fair Value, Ending Balance     46,068 [13],[23] 41,731 [10],[18]                  
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 2                          
Principal amount or par value     33,155 [13],[14],[20],[24] 19,798 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     19,798 [10],[11]                    
Fair Value, Ending Balance     33,155 [13],[14],[24] 19,798 [10],[11]                  
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 3                          
Principal amount or par value       10,239 [10],[15],[19]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,239 [10],[19]                    
Fair Value, Ending Balance       10,239 [10],[19]                  
Investment, Identifier [Axis]: New Benevis Holdco, Inc., Subordinated                          
Principal amount or par value     23,814 [13],[14],[20] 21,092 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,874 [10],[11]                    
Fair Value, Ending Balance     19,051 [13],[14] 16,874 [10],[11]                  
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     31,838 [10],[18]                    
Fair Value, Ending Balance     28,481 [13],[23] 31,838 [10],[18]                  
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     7,812 [10],[19]                    
Fair Value, Ending Balance     13,347 [13],[14] 7,812 [10],[19]                  
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 3                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,109 [10],[11]                    
Fair Value, Ending Balance       7,109 [10],[11]                  
Investment, Identifier [Axis]: New Permian Holdco, Inc., Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     26,000 [10],[11]                    
Fair Value, Ending Balance     18,900 [13],[14] 26,000 [10],[11]                  
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien                          
Principal amount or par value     $ 23,336 [13],[14],[20],[24] 23,336 [10],[11],[15]                  
Spread     9.00% [13],[14],[24]     9.00% [13],[14],[24] 9.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 23,335 [10],[11]                    
Fair Value, Ending Balance     23,336 [13],[14],[24] 23,335 [10],[11]                  
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Drawn                          
Principal amount or par value     $ 20,840 [13],[14],[20],[21],[24] 13,835 [10],[11],[15],[17]                  
Spread     6.00% [13],[14],[21],[24]     6.00% [13],[14],[21],[24] 6.00% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 13,835 [10],[11],[17]                    
Fair Value, Ending Balance     20,840 [13],[14],[21],[24] 13,835 [10],[11],[17]                  
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Undrawn                          
Principal amount or par value     1,055 [13],[14],[20],[21] 8,060 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: New Trojan Parent, Inc. Second Lien                          
Principal amount or par value       $ 26,762 [10],[15],[18]                  
Spread       7.25% [10],[18]       7.25% [10],[18] 7.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,421 [10],[18]                    
Fair Value, Ending Balance       $ 1,421 [10],[18]                  
Investment, Identifier [Axis]: Next Holdco, LLC, First Lien                          
Principal amount or par value       $ 3,520 [10],[15],[18]                  
Spread       6.00% [10],[18]       6.00% [10],[18] 6.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,494 [10],[18]                    
Fair Value, Ending Balance       $ 3,494 [10],[18]                  
Investment, Identifier [Axis]: Next Holdco, LLC, First lien                          
Principal amount or par value     $ 3,494 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,494 [13],[22],[23]                    
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                          
Principal amount or par value     903 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                          
Principal amount or par value     339 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                          
Principal amount or par value       903 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                          
Principal amount or par value       339 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (3) [10],[11],[17]                    
Fair Value, Ending Balance       (3) [10],[11],[17]                  
Investment, Identifier [Axis]: Notorious Topco, LLC First Lien - Drawn 1                          
Principal amount or par value       $ 867 [10],[11],[15],[17]                  
Spread       6.75% [10],[11],[17]       6.75% [10],[11],[17] 6.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     803 [10],[11],[17]                    
Fair Value, Ending Balance       $ 803 [10],[11],[17]                  
Investment, Identifier [Axis]: Notorious Topco, LLC First Lien - Drawn 2                          
Principal amount or par value       $ 59 [10],[11],[15],[17]                  
Spread       6.75% [10],[11],[17]       6.75% [10],[11],[17] 6.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     55 [10],[11],[17]                    
Fair Value, Ending Balance       $ 55 [10],[11],[17]                  
Investment, Identifier [Axis]: Notorious Topco, LLC First Lien 1                          
Principal amount or par value       $ 9,950 [10],[15],[19]                  
Spread       6.75% [10],[19]       6.75% [10],[19] 6.75% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,215 [10],[19]                    
Fair Value, Ending Balance       $ 9,215 [10],[19]                  
Investment, Identifier [Axis]: Notorious Topco, LLC First Lien 2                          
Principal amount or par value       $ 9,825 [10],[15],[19]                  
Spread       6.75% [10],[19]       6.75% [10],[19] 6.75% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,100 [10],[19]                    
Fair Value, Ending Balance       $ 9,100 [10],[19]                  
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Undrawn                          
Principal amount or par value     880 [13],[14],[20],[21] 822 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (61) [10],[11],[17]                    
Fair Value, Ending Balance     (71) [13],[14],[21] $ (61) [10],[11],[17]                  
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 1                          
Principal amount or par value     $ 10,058 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24],[27]     4.75% [13],[14],[24],[27] 4.75% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,241 [13],[14],[24]                    
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 2                          
Principal amount or par value     $ 9,932 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24],[27]     4.75% [13],[14],[24],[27] 4.75% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,126 [13],[14],[24]                    
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 3                          
Principal amount or par value     $ 877 [13],[14],[20],[24]                    
Spread     4.75% [13],[14],[24],[27]     4.75% [13],[14],[24],[27] 4.75% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 805 [13],[14],[24]                    
Investment, Identifier [Axis]: OA Buyer, Inc, First lien                          
Number of investments held | investment       2       2 2        
Investment, Identifier [Axis]: OA Buyer, Inc. First Lien 1                          
Principal amount or par value       $ 27,707 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     27,707 [10],[18]                    
Fair Value, Ending Balance       $ 27,707 [10],[18]                  
Investment, Identifier [Axis]: OA Buyer, Inc. First Lien 2                          
Principal amount or par value       $ 1,754 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 1,754 [10],[18]                    
Fair Value, Ending Balance       $ 1,754 [10],[18]                  
Investment, Identifier [Axis]: OA Buyer, Inc., First lien                          
Number of investments held | investment     3     3 3            
Investment, Identifier [Axis]: OA Buyer, Inc., First lien - Undrawn                          
Principal amount or par value     $ 3,600 [13],[14],[20],[21],[56] 3,600 [10],[11],[15],[17],[57]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17],[57]                    
Fair Value, Ending Balance     0 [13],[14],[21],[56] 0 [10],[11],[17],[57]                  
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 1                          
Principal amount or par value     $ 31,513 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 31,513 [13],[22],[23]                    
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 2                          
Principal amount or par value     $ 27,425 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 27,425 [13],[22],[23]                    
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 3                          
Principal amount or par value     $ 1,736 [13],[20],[22],[23]                    
Spread     4.75% [13],[22],[23]     4.75% [13],[22],[23] 4.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,736 [13],[22],[23]                    
Investment, Identifier [Axis]: OA Topco, L.P., Ordinary shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,343 [10],[11],[57]                    
Fair Value, Ending Balance     7,646 [13],[14],[56] $ 3,343 [10],[11],[57]                  
Investment, Identifier [Axis]: OEC Holdco, LLC, Preferred shares                          
Preferred equity dividend rate       11.00%                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     8,115 [10],[58],[59]                    
Fair Value, Ending Balance       $ 8,115 [10],[58],[59]                  
Investment, Identifier [Axis]: OEConnection LLC, First lien                          
Principal amount or par value     $ 46,430 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 46,430 [13],[22],[23]                    
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 1                          
Principal amount or par value     8,101 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 2                          
Principal amount or par value     5,063 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: OEConnection LLC, Second Lien 1                          
Principal amount or par value       $ 23,406 [10],[15],[18]                  
Spread       7.00% [10],[18]       7.00% [10],[18] 7.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     23,406 [10],[18]                    
Fair Value, Ending Balance       $ 23,406 [10],[18]                  
Investment, Identifier [Axis]: OEConnection LLC, Second Lien 2                          
Principal amount or par value       $ 12,044 [10],[15],[18]                  
Spread       7.00% [10],[18]       7.00% [10],[18] 7.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,044 [10],[18]                    
Fair Value, Ending Balance       $ 12,044 [10],[18]                  
Investment, Identifier [Axis]: OEConnection LLC, Second lien                          
Number of investments held | investment       2       2 2        
Investment, Identifier [Axis]: Oranje Holdco, Inc. First Lien 1                          
Principal amount or par value       $ 7,440 [10],[15],[19]                  
Spread       7.50% [10],[19]       7.50% [10],[19] 7.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,440 [10],[19]                    
Fair Value, Ending Balance       $ 7,440 [10],[19]                  
Investment, Identifier [Axis]: Oranje Holdco, Inc. First Lien 2                          
Principal amount or par value       $ 7,440 [10],[15],[18]                  
Spread       7.50% [10],[18]       7.50% [10],[18] 7.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,440 [10],[18]                    
Fair Value, Ending Balance       $ 7,440 [10],[18]                  
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien - Undrawn                          
Principal amount or par value     1,860 [13],[14],[20],[21] 1,860 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 1                          
Principal amount or par value     $ 7,440 [13],[20],[22],[23]                    
Spread     7.75% [13],[22],[23]     7.75% [13],[22],[23] 7.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,440 [13],[22],[23]                    
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 2                          
Principal amount or par value     $ 7,440 [13],[14],[20],[24]                    
Spread     7.75% [13],[14],[24]     7.75% [13],[14],[24] 7.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,440 [13],[14],[24]                    
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 3                          
Principal amount or par value     $ 5,454 [13],[14],[20],[24]                    
Spread     7.25% [13],[14],[24]     7.25% [13],[14],[24] 7.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,454 [13],[14],[24]                    
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien                          
Principal amount or par value     $ 18,161 [13],[20],[25]                    
Spread     5.50% [13],[25]     5.50% [13],[25] 5.50% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 18,161 [13],[25]                    
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Drawn                          
Principal amount or par value     $ 2,360 [13],[20],[21],[25]                    
Spread     5.50% [13],[21],[25]     5.50% [13],[21],[25] 5.50% [13],[21],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,360 [13],[21],[25]                    
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,865 [13],[20],[21],[25]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[21],[25]                    
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value     1,830 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC First Lien                          
Principal amount or par value       $ 7,514 [10],[15],[16]                  
Spread       5.75% [10],[16]       5.75% [10],[16] 5.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,514 [10],[16]                    
Fair Value, Ending Balance       $ 7,514 [10],[16]                  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien - Undrawn                          
Principal amount or par value     486 [13],[14],[20],[21] 486 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 1                          
Principal amount or par value     $ 22,388 [13],[20],[25]                    
Spread     5.75% [13],[25]     5.75% [13],[25] 5.75% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,388 [13],[25]                    
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 2                          
Principal amount or par value     $ 8,258 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 8,258 [13],[22],[23]                    
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                          
Principal amount or par value     $ 14,500 [13],[14],[20]                   $ 20,000
Spread     0.00% [13],[14]     0.00% [13],[14] 0.00% [13],[14]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,525 [13],[14]                    
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                          
Principal amount or par value       14,500 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,975 [10],[11]                    
Fair Value, Ending Balance       7,975 [10],[11]                  
Investment, Identifier [Axis]: PPVA Fund, L.P., Collateralized Financing                          
Principal amount or par value     $ 0 [20],[32],[60] $ 0 [15],[30],[61]                  
Spread     0.00% [32],[60] 0.00% [30],[61]   0.00% [32],[60] 0.00% [32],[60] 0.00% [30],[61] 0.00% [30],[61]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 0 [30],[61]                    
Fair Value, Ending Balance     0 [32],[60] $ 0 [30],[61]                  
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien                          
Principal amount or par value     $ 7,654 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,635 [13],[22],[23]                    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Drawn                          
Principal amount or par value     $ 258 [13],[14],[20],[21],[24]                    
Spread     5.25% [13],[14],[21],[24]     5.25% [13],[14],[21],[24] 5.25% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 258 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 1                          
Principal amount or par value     643 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (2) [13],[14],[21]                    
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 2                          
Principal amount or par value     1,201 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (3) [13],[14],[21]                    
Investment, Identifier [Axis]: Permian Trust, First lien                          
Principal amount or par value     3,409 [13],[14],[20],[32]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[32]                    
Investment, Identifier [Axis]: Permian Trust, First lien 1                          
Principal amount or par value       247 [10],[15],[30],[62]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[30],[62]                    
Fair Value, Ending Balance       0 [10],[30],[62]                  
Investment, Identifier [Axis]: Permian Trust, First lien 2                          
Principal amount or par value       3,409 [10],[11],[15],[30]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[30]                    
Fair Value, Ending Balance       0 [10],[11],[30]                  
Investment, Identifier [Axis]: Permian Trust, Trust Claim                          
Principal amount or par value     247 [13],[20],[32],[63]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[32],[63]                    
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First Lien                          
Principal amount or par value       $ 28,430 [15],[18]                  
Spread       6.00% [18]       6.00% [18] 6.00% [18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     28,439 [18]                    
Fair Value, Ending Balance       $ 28,439 [18]                  
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien                          
Principal amount or par value     $ 28,145 [13],[20],[22],[23]                    
Spread     6.00% [13],[22],[23]     6.00% [13],[22],[23] 6.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 28,145 [13],[22],[23]                    
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 1                          
Principal amount or par value     3,708 [13],[14],[20],[21] 3,708 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1 [11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 1 [11],[17]                  
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 2                          
Principal amount or par value     3,708 [13],[14],[20],[21] 3,708 [11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [11],[17]                  
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First Lien 1                          
Principal amount or par value       16,802 [10],[15],[19]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,802 [10],[19]                    
Fair Value, Ending Balance       16,802 [10],[19]                  
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First Lien 2                          
Principal amount or par value       2,303 [10],[15],[19]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     $ 2,303 [10],[19]                    
Fair Value, Ending Balance       $ 2,303 [10],[19]                  
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     $ 3,284 [13],[14],[20],[21],[64] $ 2,446 [10],[11],[15],[17],[65]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17],[65]                    
Fair Value, Ending Balance     0 [13],[14],[21],[64] 0 [10],[11],[17],[65]                  
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 1                          
Principal amount or par value     $ 23,089 [13],[14],[20],[24]                    
Spread     6.50% [13],[14],[24]     6.50% [13],[14],[24] 6.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 23,089 [13],[14],[24]                    
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 2                          
Principal amount or par value     $ 2,374 [13],[14],[20],[24]                    
Spread     6.50% [13],[14],[24]     6.50% [13],[14],[24] 6.50% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,374 [13],[14],[24]                    
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     1,796 [10],[65],[66]                    
Fair Value, Ending Balance     2,000 [13],[64],[67] 1,796 [10],[65],[66]                  
Investment, Identifier [Axis]: Planview Parent, Inc., Second lien                          
Principal amount or par value     $ 9,231 [20],[22],[23]                    
Spread     5.75% [22],[23]     5.75% [22],[23] 5.75% [22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,208 [22],[23]                    
Investment, Identifier [Axis]: Power Grid Holdings, Inc. First Lien                          
Principal amount or par value       $ 18,193 [10],[15],[16]                  
Spread       4.75% [10],[16]       4.75% [10],[16] 4.75% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,011 [10],[16]                    
Fair Value, Ending Balance       $ 18,011 [10],[16]                  
Investment, Identifier [Axis]: Power Grid Holdings, Inc. First Lien - Drawn                          
Principal amount or par value       $ 214 [10],[11],[15],[17]                  
Spread       4.75% [10],[11],[17]       4.75% [10],[11],[17] 4.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     212 [10],[11],[17]                    
Fair Value, Ending Balance       $ 212 [10],[11],[17]                  
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien                          
Principal amount or par value     $ 22,387 [13],[20],[25]                    
Spread     4.75% [13],[25]     4.75% [13],[25] 4.75% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,387 [13],[25]                    
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien - Undrawn                          
Principal amount or par value     4,289 [13],[14],[20],[21] 4,075 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (41) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (41) [10],[11],[17]                  
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien                          
Principal amount or par value     $ 10,519 [13],[20],[39]                    
Spread     5.25% [13],[39]     5.25% [13],[39] 5.25% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 10,519 [13],[39]                    
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien - Undrawn                          
Principal amount or par value     1,510 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
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     12,382 [10],[11]                    
Fair Value, Ending Balance     14,833 [13],[14] 12,382 [10],[11]                  
Investment, Identifier [Axis]: Project Power Buyer, LLC, First Lien                          
Principal amount or par value       $ 3,553 [10],[15],[18]                  
Spread       7.00% [10],[18]       7.00% [10],[18] 7.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,553 [10],[18]                    
Fair Value, Ending Balance       $ 3,553 [10],[18]                  
Investment, Identifier [Axis]: Project Power Buyer, LLC, First lien - Undrawn                          
Principal amount or par value       184 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First Lien                          
Principal amount or par value       $ 5,109 [10],[15],[18]                  
Spread       5.50% [10],[18]       5.50% [10],[18] 5.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,109 [10],[18]                    
Fair Value, Ending Balance       $ 5,109 [10],[18]                  
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien - Undrawn                          
Principal amount or par value       1,161 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Quartz Holding Company, Second Lien                          
Principal amount or par value       $ 10,000 [10],[11],[15]                  
Spread       8.00% [10],[11]       8.00% [10],[11] 8.00% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,000 [10],[11]                    
Fair Value, Ending Balance       $ 10,000 [10],[11]                  
Investment, Identifier [Axis]: RLG Holdings, LLC, First lien                          
Principal amount or par value     $ 3,970 [20],[22],[23]                    
Spread     5.00% [22],[23]     5.00% [22],[23] 5.00% [22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 3,934 [22],[23]                    
Investment, Identifier [Axis]: Recorded Future, Inc. First Lien 1                          
Principal amount or par value       $ 24,220 [10],[15],[19]                  
Spread       5.25% [10],[19]       5.25% [10],[19] 5.25% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     24,220 [10],[19]                    
Fair Value, Ending Balance       $ 24,220 [10],[19]                  
Investment, Identifier [Axis]: Recorded Future, Inc. First Lien 2                          
Principal amount or par value       $ 12,524 [10],[15],[18]                  
Spread       5.25% [10],[18]       5.25% [10],[18] 5.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,524 [10],[18]                    
Fair Value, Ending Balance       $ 12,524 [10],[18]                  
Investment, Identifier [Axis]: Recorded Future, Inc., First lien - Undrawn                          
Principal amount or par value       2,981 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 1                          
Principal amount or par value     $ 152 [13],[20],[23]                    
Spread     0.00% [13],[23]     0.00% [13],[23] 0.00% [13],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 152 [13],[23]                    
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 2                          
Principal amount or par value     $ 52 [13],[14],[20]                    
Spread     0.00% [13],[14]     0.00% [13],[14] 0.00% [13],[14]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 52 [13],[14]                    
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 1                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     327 [13],[23]                    
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 2                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     112 [13],[14]                    
Investment, Identifier [Axis]: Riskonnect Parent, LLC, First lien - Undrawn                          
Principal amount or par value     6,349 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First Lien                          
Principal amount or par value       $ 6,904 [10],[15],[18]                  
Spread       5.25% [10],[18]       5.25% [10],[18] 5.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,904 [10],[18]                    
Fair Value, Ending Balance       $ 6,904 [10],[18]                  
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First Lien - Drawn                          
Principal amount or par value       $ 384 [10],[11],[15],[17]                  
Spread       4.25% [10],[11],[17]       4.25% [10],[11],[17] 4.25% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     384 [10],[11],[17]                    
Fair Value, Ending Balance       $ 384 [10],[11],[17]                  
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn                          
Principal amount or par value     384 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Drawn                          
Principal amount or par value     $ 128 [13],[14],[20],[21]                    
Spread     4.25% [13],[14],[21]     4.25% [13],[14],[21] 4.25% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 128 [13],[14],[21]                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn                          
Principal amount or par value       128 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 1                          
Principal amount or par value     $ 7,446 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,446 [13],[22],[23]                    
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 2                          
Principal amount or par value     $ 1,523 [13],[14],[20],[24]                    
Spread     5.25% [13],[14],[24]     5.25% [13],[14],[24] 5.25% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,523 [13],[14],[24]                    
Investment, Identifier [Axis]: Sierra Enterprises, LLC                          
Principal amount or par value     $ 42,450 [13],[14],[20],[24]                    
Spread     6.75% [13],[14],[24]     6.75% [13],[14],[24] 6.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 42,450 [13],[14],[24]                    
Investment, Identifier [Axis]: Sierra Enterprises, LLC, First Lien                          
Principal amount or par value       $ 23,780 [11],[15]                  
Spread       2.50% [11],[31]       2.50% [11],[31] 2.50% [11],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,055 [11]                    
Fair Value, Ending Balance       $ 22,055 [11]                  
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     1,799 [10],[18]                    
Fair Value, Ending Balance     1,799 [13],[23] 1,799 [10],[18]                  
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     201 [10],[11]                    
Fair Value, Ending Balance     201 [13],[14] 201 [10],[11]                  
Investment, Identifier [Axis]: Specialtycare, Inc. First Lien - Drawn                          
Principal amount or par value       $ 78 [10],[11],[15],[17]                  
Spread       4.00% [10],[11],[17]       4.00% [10],[11],[17] 4.00% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     76 [10],[11],[17]                    
Fair Value, Ending Balance       $ 76 [10],[11],[17]                  
Investment, Identifier [Axis]: Specialtycare, Inc. First Lien 1                          
Principal amount or par value       $ 10,352 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,938 [10],[18]                    
Fair Value, Ending Balance       $ 9,938 [10],[18]                  
Investment, Identifier [Axis]: Specialtycare, Inc. First Lien 2                          
Principal amount or par value       $ 78 [10],[11],[15]                  
Spread       5.75% [10],[11]       5.75% [10],[11] 5.75% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     76 [10],[11]                    
Fair Value, Ending Balance       $ 76 [10],[11]                  
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Drawn                          
Principal amount or par value     $ 324 [13],[14],[20],[21],[24]                    
Spread     4.00% [13],[14],[21],[24]     4.00% [13],[14],[21],[24] 4.00% [13],[14],[21],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 315 [13],[14],[21],[24]                    
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Undrawn                          
Principal amount or par value     235 [13],[14],[20],[21] 481 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (17) [10],[11],[17]                    
Fair Value, Ending Balance     (7) [13],[14],[21] (17) [10],[11],[17]                  
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 1                          
Principal amount or par value     $ 10,247 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,953 [13],[22],[23]                    
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 2                          
Principal amount or par value     $ 77 [13],[14],[20],[24]                    
Spread     5.75% [13],[14],[24]     5.75% [13],[14],[24] 5.75% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 75 [13],[14],[24]                    
Investment, Identifier [Axis]: Sun Acquirer Corp. First Lien - Drawn                          
Principal amount or par value       $ 112 [10],[11],[15],[17]                  
Spread       5.75% [10],[11],[17]       5.75% [10],[11],[17] 5.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     110 [10],[11],[17]                    
Fair Value, Ending Balance       $ 110 [10],[11],[17]                  
Investment, Identifier [Axis]: Sun Acquirer Corp. First Lien 1                          
Principal amount or par value       $ 3,945 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,878 [10],[18]                    
Fair Value, Ending Balance       $ 3,878 [10],[18]                  
Investment, Identifier [Axis]: Sun Acquirer Corp. First Lien 2                          
Principal amount or par value       $ 2,788 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,740 [10],[18]                    
Fair Value, Ending Balance       $ 2,740 [10],[18]                  
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Undrawn                          
Principal amount or par value       447 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (8) [10],[11],[17]                    
Fair Value, Ending Balance       (8) [10],[11],[17]                  
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     13,807 [10],[16]                    
Fair Value, Ending Balance     16,450 [13],[25] 13,807 [10],[16]                  
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     4,759 [10],[11]                    
Fair Value, Ending Balance     5,671 [13],[14],[24] 4,759 [10],[11]                  
Investment, Identifier [Axis]: Syndigo LLC, Second Lien 1                          
Principal amount or par value       $ 22,500 [10],[15],[16]                  
Spread       8.00% [10],[16]       8.00% [10],[16] 8.00% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,500 [10],[16]                    
Fair Value, Ending Balance       $ 22,500 [10],[16]                  
Investment, Identifier [Axis]: Syndigo LLC, Second Lien 2                          
Principal amount or par value       $ 5,697 [10],[15],[18]                  
Spread       8.00% [10],[18]       8.00% [10],[18] 8.00% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,697 [10],[18]                    
Fair Value, Ending Balance       $ 5,697 [10],[18]                  
Investment, Identifier [Axis]: Syndigo LLC, Second lien 1                          
Principal amount or par value     $ 22,500 [13],[20],[25]                    
Spread     8.00% [13],[25]     8.00% [13],[25] 8.00% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,500 [13],[25]                    
Investment, Identifier [Axis]: Syndigo LLC, Second lien 2                          
Principal amount or par value     $ 5,697 [13],[20],[22],[23]                    
Spread     8.00% [13],[22],[23]     8.00% [13],[22],[23] 8.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,697 [13],[22],[23]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp, First Lien 1                          
Principal amount or par value       $ 16,227 [10],[15],[18]                  
Spread       3.50% [10],[18]       3.50% [10],[18] 3.50% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,736 [10],[18]                    
Fair Value, Ending Balance       $ 9,736 [10],[18]                  
Investment, Identifier [Axis]: TMK Hawk Parent, Corp, First Lien 2                          
Principal amount or par value       $ 15,651 [10],[15],[19]                  
Spread       3.50% [10],[19]       3.50% [10],[19] 3.50% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     9,392 [10],[19]                    
Fair Value, Ending Balance       $ 9,392 [10],[19]                  
Investment, Identifier [Axis]: TMK Hawk Parent, Corp, First Lien 3                          
Principal amount or par value       $ 1,033 [15],[18]                  
Spread       9.50% [18]       9.50% [18] 9.50% [18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,033 [18]                    
Fair Value, Ending Balance       $ 1,033 [18]                  
Investment, Identifier [Axis]: TMK Hawk Parent, Corp, First Lien 4                          
Principal amount or par value       $ 996 [15],[19]                  
Spread       9.50% [19]       9.50% [19] 9.50% [19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     996 [19]                    
Fair Value, Ending Balance       $ 996 [19]                  
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien - Undrawn                          
Principal amount or par value     2,695 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 1                          
Principal amount or par value     12,327 [13],[20],[23]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     10,402 [13],[23]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 2                          
Principal amount or par value     9,925 [13],[14],[20],[24]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     8,374 [13],[14],[24]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 3                          
Principal amount or par value     $ 2,843 [13],[14],[20],[24]                    
Spread     2.00% [13],[14],[24],[27]     2.00% [13],[14],[24],[27] 2.00% [13],[14],[24],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,351 [13],[14],[24]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 1                          
Principal amount or par value     302 [13],[20],[23]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     302 [13],[23]                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 2                          
Principal amount or par value     291 [13],[14],[20]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     291 [13],[14]                    
Investment, Identifier [Axis]: TRC Companies L.L.C. (fka Energize Holdco LLC) Second Lien                          
Principal amount or par value       $ 7,950 [10],[15],[18]                  
Spread       6.75% [10],[18]       6.75% [10],[18] 6.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,711 [10],[18]                    
Fair Value, Ending Balance       $ 7,711 [10],[18]                  
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Ordinary shares                          
Ordinary shares dividend rate       12.00%                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     95,151 [10],[11]                    
Fair Value, Ending Balance     59,978 [13],[14] $ 95,151 [10],[11]                  
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Preferred shares                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 9,352 [13],[14]                    
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien                          
Principal amount or par value | £             £ 19,418 [13],[14],[20],[24],[29]            
Spread     3.50% [13],[14],[24],[27],[29]     3.50% [13],[14],[24],[27],[29] 3.50% [13],[14],[24],[27],[29]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 19,321 [13],[14],[24],[29]                    
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 1                          
Principal amount or par value       $ 16,600         £ 13,039 [10],[11],[15],[68]        
Spread       5.00% [10],[11],[31],[68]       5.00% [10],[11],[31],[68] 5.00% [10],[11],[31],[68]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     16,600 [10],[11],[68]                    
Fair Value, Ending Balance       $ 16,600 [10],[11],[68]                  
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 2                          
Principal amount or par value | £                 £ 10,734 [10],[11],[15],[68]        
Spread       5.00% [10],[11],[31],[68]       5.00% [10],[11],[31],[68] 5.00% [10],[11],[31],[68]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,664 [10],[11],[68]                    
Fair Value, Ending Balance       $ 13,664 [10],[11],[68]                  
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 2 and Tennessee Bidco Limited, First lien 5                          
Principal amount or par value       14,457                  
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 3                          
Principal amount or par value       $ 10,312 [10],[11],[15]                  
Spread       5.00% [10],[11],[31]       5.00% [10],[11],[31] 5.00% [10],[11],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     10,312 [10],[11]                    
Fair Value, Ending Balance       $ 10,312 [10],[11]                  
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 4                          
Principal amount or par value       $ 6,373 [10],[11],[15]                  
Spread       5.00% [10],[11],[31]       5.00% [10],[11],[31] 5.00% [10],[11],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     6,373 [10],[11]                    
Fair Value, Ending Balance       $ 6,373 [10],[11]                  
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 5                          
Principal amount or par value | €               € 716 [10],[11],[15],[68]          
Spread       5.00% [10],[11],[31],[68]       5.00% [10],[11],[31],[68] 5.00% [10],[11],[31],[68]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     791 [10],[11],[68]                    
Fair Value, Ending Balance       $ 791 [10],[11],[68]                  
Investment, Identifier [Axis]: TigerConnect, Inc. First Lien                          
Principal amount or par value       $ 29,868 [10],[15],[19]                  
Spread       3.38% [10],[19],[31]       3.38% [10],[19],[31] 3.38% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     29,614 [10],[19]                    
Fair Value, Ending Balance       $ 29,614 [10],[19]                  
Investment, Identifier [Axis]: TigerConnect, Inc. First Lien - Drawn                          
Principal amount or par value       $ 1,354 [10],[15],[17],[18]                  
Spread       3.38% [10],[17],[18],[31]       3.38% [10],[17],[18],[31] 3.38% [10],[17],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,343 [10],[17],[18]                    
Fair Value, Ending Balance       $ 1,343 [10],[17],[18]                  
Investment, Identifier [Axis]: TigerConnect, Inc., First lien                          
Principal amount or par value     $ 29,868 [13],[20],[22],[23]                    
Spread     3.38% [13],[22],[23],[27]     3.38% [13],[22],[23],[27] 3.38% [13],[22],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 29,868 [13],[22],[23]                    
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Drawn                          
Principal amount or par value     $ 2,440 [13],[20],[21],[23]                    
Spread     3.38% [13],[21],[23],[27]     3.38% [13],[21],[23],[27] 3.38% [13],[21],[23],[27]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 2,440 [13],[21],[23]                    
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 1                          
Principal amount or par value     1,301 [13],[20],[21],[23] 885 [10],[15],[17],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (8) [10],[17],[18]                    
Fair Value, Ending Balance     0 [13],[21],[23] (8) [10],[17],[18]                  
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 2                          
Principal amount or par value     4,267 [13],[14],[20],[21] 4,267 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     (36) [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] (36) [10],[11],[17]                  
Investment, Identifier [Axis]: Transcendia Holdings, Inc. Second Lien                          
Principal amount or par value       $ 14,500 [10],[15],[19]                  
Spread       8.00% [10],[19]       8.00% [10],[19] 8.00% [10],[19]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,250 [10],[19]                    
Fair Value, Ending Balance       $ 7,250 [10],[19]                  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First Lien - Drawn                          
Principal amount or par value       $ 4,070 [10],[15],[17],[18]                  
Spread       5.75% [10],[17],[18]       5.75% [10],[17],[18] 5.75% [10],[17],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,070 [10],[17],[18]                    
Fair Value, Ending Balance       $ 4,070 [10],[17],[18]                  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First Lien 1                          
Principal amount or par value       $ 15,382 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     15,382 [10],[18]                    
Fair Value, Ending Balance       $ 15,382 [10],[18]                  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 1                          
Principal amount or par value     785 [13],[20],[21],[22],[23] 1,182 [10],[15],[17],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[18]                    
Fair Value, Ending Balance     0 [13],[21],[22],[23] 0 [10],[17],[18]                  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 2                          
Principal amount or par value     1,501 [13],[14],[20],[21] 1,501 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 1                          
Principal amount or par value     $ 15,382 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 15,382 [13],[22],[23]                    
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 2                          
Principal amount or par value     $ 4,467 [13],[20],[22],[23]                    
Spread     5.25% [13],[22],[23]     5.25% [13],[22],[23] 5.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 4,467 [13],[22],[23]                    
Investment, Identifier [Axis]: USRP Holdings, Inc. First Lien 1                          
Principal amount or par value       $ 11,226 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     11,226 [10],[18]                    
Fair Value, Ending Balance       $ 11,226 [10],[18]                  
Investment, Identifier [Axis]: USRP Holdings, Inc. First Lien 2                          
Principal amount or par value       $ 1,462 [10],[11],[15]                  
Spread       5.75% [10],[11]       5.75% [10],[11] 5.75% [10],[11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,462 [10],[11]                    
Fair Value, Ending Balance       $ 1,462 [10],[11]                  
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien - Undrawn                          
Principal amount or par value     893 [13],[14],[20],[21] 893 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     0 [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 1                          
Principal amount or par value     $ 6,984 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,984 [13],[14],[24]                    
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 2                          
Principal amount or par value     $ 5,541 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 5,541 [13],[22],[23]                    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Junior preferred shares, Non-accrual status                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0                    
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 [10],[18]                    
Fair Value, Ending Balance     0 [13],[23] 0 [10],[18]                  
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     0 [10],[11]                    
Fair Value, Ending Balance     0 [13],[14] 0 [10],[11]                  
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     16,348 [10],[11]                    
Fair Value, Ending Balance     20,646 [13],[14] 16,348 [10],[11]                  
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     10,119 [10],[11]                    
Fair Value, Ending Balance     12,682 [13],[14] 10,119 [10],[11]                  
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     4,210 [10],[11],[30]                    
Fair Value, Ending Balance     3,080 [13],[14],[32] 4,210 [10],[11],[30]                  
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     0 [10],[18],[30]                    
Fair Value, Ending Balance     0 [13],[23],[32] 0 [10],[18],[30]                  
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     0 [10],[11],[30]                    
Fair Value, Ending Balance     0 [13],[14],[32] 0 [10],[11],[30]                  
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 1                          
Principal amount or par value     15,608 [13],[14],[20] 13,438 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     12,893 [10],[11]                    
Fair Value, Ending Balance     15,459 [13],[14] 12,893 [10],[11]                  
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 2                          
Principal amount or par value     6,919 [13],[14],[20] 5,957 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     5,713 [10],[11]                    
Fair Value, Ending Balance     6,853 [13],[14] 5,713 [10],[11]                  
Investment, Identifier [Axis]: UniTek Global Services, Inc., Senior preferred shares, Non-accrual status                          
Principal amount or par value                     $ 19,795    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     3,080                    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Warrants                          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     42,716 [10],[11]                    
Fair Value, Ending Balance     48,804 [13],[14] 42,716 [10],[11]                  
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien                          
Principal amount or par value     $ 12,030 [13],[14],[20],[24],[55]                    
Spread     5.00% [13],[14],[24],[55]     5.00% [13],[14],[24],[55] 5.00% [13],[14],[24],[55]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 14,981 [13],[14],[24],[55]                    
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 1                          
Principal amount or par value     4,150 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 2                          
Principal amount or par value     3,320 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (17) [13],[14],[21]                    
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien 1                          
Principal amount or par value     15,057                    
Investment, Identifier [Axis]: Virtusa Corporation, Subordinated                          
Principal amount or par value       $ 9,401 [11],[15]                  
Spread       7.13% [11]       7.13% [11] 7.13% [11]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     8,077 [11]                    
Fair Value, Ending Balance       $ 8,077 [11]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First Lien - Drawn                          
Principal amount or par value       $ 13,336 [10],[15],[17],[18]                  
Spread       5.75% [10],[17],[18]       5.75% [10],[17],[18] 5.75% [10],[17],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     13,336 [10],[17],[18]                    
Fair Value, Ending Balance       $ 13,336 [10],[17],[18]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First Lien 1                          
Principal amount or par value       $ 18,758 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     18,758 [10],[18]                    
Fair Value, Ending Balance       $ 18,758 [10],[18]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First Lien 2                          
Principal amount or par value       $ 1,241 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,241 [10],[18]                    
Fair Value, Ending Balance       $ 1,241 [10],[18]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First Lien 3                          
Principal amount or par value       $ 832 [10],[15],[18]                  
Spread       5.75% [10],[18]       5.75% [10],[18] 5.75% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     832 [10],[18]                    
Fair Value, Ending Balance       $ 832 [10],[18]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn                          
Principal amount or par value     2,040 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     0 [13],[14],[21]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn 1                          
Principal amount or par value       2,396 [10],[15],[17],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[18]                    
Fair Value, Ending Balance       0 [10],[17],[18]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn 2                          
Principal amount or par value       2,040 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 1                          
Principal amount or par value     $ 15,593 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 15,593 [13],[22],[23]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 2                          
Principal amount or par value     $ 11,908 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 11,908 [13],[14],[24]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 3                          
Principal amount or par value     $ 6,659 [13],[20],[22],[23]                    
Spread     5.00% [13],[22],[23]     5.00% [13],[22],[23] 5.00% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 6,659 [13],[22],[23]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 4                          
Principal amount or par value     $ 1,228 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 1,228 [13],[14],[24]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 5                          
Principal amount or par value     $ 824 [13],[14],[20],[24]                    
Spread     5.00% [13],[14],[24]     5.00% [13],[14],[24] 5.00% [13],[14],[24]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 824 [13],[14],[24]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, Subordinated                          
Principal amount or par value     4,231 [13],[14],[20]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     4,231 [13],[14]                    
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, Subrdinated                          
Principal amount or par value       3,513 [10],[11],[15]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     3,459 [10],[11]                    
Fair Value, Ending Balance       3,459 [10],[11]                  
Investment, Identifier [Axis]: Xactly Corporation, First Lien                          
Principal amount or par value       $ 22,500 [10],[15],[16]                  
Spread       7.25% [10],[16]       7.25% [10],[16] 7.25% [10],[16]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     22,500 [10],[16]                    
Fair Value, Ending Balance       $ 22,500 [10],[16]                  
Investment, Identifier [Axis]: Xactly Corporation, First lien                          
Principal amount or par value     $ 22,500 [13],[20],[25]                    
Spread     6.25% [13],[25]     6.25% [13],[25] 6.25% [13],[25]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 22,250 [13],[25]                    
Investment, Identifier [Axis]: Xactly Corporation, First lien - Undrawn                          
Principal amount or par value     992 [13],[14],[20],[21] 992 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance     (11) [13],[14],[21] 0 [10],[11],[17]                  
Investment, Identifier [Axis]: YLG Holdings, Inc. First Lien - Drawn 1                          
Principal amount or par value       $ 1,204 [10],[15],[17],[38]                  
Spread       5.00% [10],[17],[38]       5.00% [10],[17],[38] 5.00% [10],[17],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     1,204 [10],[17],[38]                    
Fair Value, Ending Balance       $ 1,204 [10],[17],[38]                  
Investment, Identifier [Axis]: YLG Holdings, Inc. First Lien - Drawn 2                          
Principal amount or par value       $ 80 [10],[15],[17],[38]                  
Spread       5.50% [10],[17],[38]       5.50% [10],[17],[38] 5.50% [10],[17],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     80 [10],[17],[38]                    
Fair Value, Ending Balance       $ 80 [10],[17],[38]                  
Investment, Identifier [Axis]: YLG Holdings, Inc. First Lien 1                          
Principal amount or par value       $ 17,677 [10],[15],[38]                  
Spread       5.00% [10],[38]       5.00% [10],[38] 5.00% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     17,676 [10],[38]                    
Fair Value, Ending Balance       $ 17,676 [10],[38]                  
Investment, Identifier [Axis]: YLG Holdings, Inc. First Lien 2                          
Principal amount or par value       $ 2,302 [10],[15],[38]                  
Spread       5.00% [10],[38]       5.00% [10],[38] 5.00% [10],[38]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     2,301 [10],[38]                    
Fair Value, Ending Balance       $ 2,301 [10],[38]                  
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien                          
Principal amount or par value     $ 21,825 [13],[20],[39]                    
Spread     4.75% [13],[39]     4.75% [13],[39] 4.75% [13],[39]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 21,825 [13],[39]                    
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 1                          
Principal amount or par value       785 [10],[15],[17],[38]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[38]                    
Fair Value, Ending Balance       0 [10],[17],[38]                  
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 2                          
Principal amount or par value       3,968 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       0 [10],[11],[17]                  
Investment, Identifier [Axis]: iCIMS, Inc. First Lien - Drawn                          
Principal amount or par value       $ 471 [10],[11],[15],[17]                  
Spread       6.75% [10],[11],[17]       6.75% [10],[11],[17] 6.75% [10],[11],[17]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     471 [10],[11],[17]                    
Fair Value, Ending Balance       $ 471 [10],[11],[17]                  
Investment, Identifier [Axis]: iCIMS, Inc. First Lien 1                          
Principal amount or par value       $ 30,783 [10],[15],[19]                  
Spread       3.38% [10],[19],[31]       3.38% [10],[19],[31] 3.38% [10],[19],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     31,008 [10],[19]                    
Fair Value, Ending Balance       $ 31,008 [10],[19]                  
Investment, Identifier [Axis]: iCIMS, Inc. First Lien 2                          
Principal amount or par value       $ 7,366 [10],[15],[18]                  
Spread       7.25% [10],[18]       7.25% [10],[18] 7.25% [10],[18]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     7,440 [10],[18]                    
Fair Value, Ending Balance       $ 7,440 [10],[18]                  
Investment, Identifier [Axis]: iCIMS, Inc. First Lien 3                          
Principal amount or par value       $ 4,772 [10],[15],[18]                  
Spread       3.38% [10],[18],[31]       3.38% [10],[18],[31] 3.38% [10],[18],[31]        
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     4,807 [10],[18]                    
Fair Value, Ending Balance       $ 4,807 [10],[18]                  
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Drawn                          
Principal amount or par value     $ 706 [13],[14],[20],[21]                    
Spread     5.75% [13],[14],[21]     5.75% [13],[14],[21] 5.75% [13],[14],[21]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 701 [13],[14],[21]                    
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn                          
Principal amount or par value     2,824 [13],[14],[20],[21]                    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     (21) [13],[14],[21]                    
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn 1                          
Principal amount or par value       6,293 [10],[15],[17],[19]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[19]                    
Fair Value, Ending Balance       0 [10],[17],[19]                  
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn 2                          
Principal amount or par value       976 [10],[15],[17],[18]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[17],[18]                    
Fair Value, Ending Balance       0 [10],[17],[18]                  
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn 3                          
Principal amount or par value       2,347 [10],[11],[15],[17]                  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Beginning Balance     0 [10],[11],[17]                    
Fair Value, Ending Balance       $ 0 [10],[11],[17]                  
Investment, Identifier [Axis]: iCIMS, Inc., First lien 1                          
Principal amount or par value     $ 44,742 [13],[20],[22],[23]                    
Spread     5.75% [13],[22],[23]     5.75% [13],[22],[23] 5.75% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 44,406 [13],[22],[23]                    
Investment, Identifier [Axis]: iCIMS, Inc., First lien 2                          
Principal amount or par value     $ 7,366 [13],[20],[22],[23]                    
Spread     6.25% [13],[22],[23]     6.25% [13],[22],[23] 6.25% [13],[22],[23]            
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]                          
Fair Value, Ending Balance     $ 7,311 [13],[22],[23]                    
[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 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.
[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] 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.
[10] 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.
[11] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower and Goldman Sachs Bank USA as the Administrative Agent and the Collateral Agent and Goldman Sachs Bank USA, Morgan Stanley Bank, N.A., Stifel Bank & Trust and MUFG Union Bank, N.A. as Lenders. See Note 7. Borrowings, for details.
[12] 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.
[13] 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.
[14] Investment is held by New Mountain Finance Corporation
[15] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[16] Investment is held by New Mountain Finance SBIC, L.P.
[17] 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.
[18] 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. ("NMF Holdings") 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.
[19] Investment is pledged as collateral for the DB Credit Facility, a revolving credit facility among New Mountain Finance DB, L.L.C as the Borrower and Deutsche Bank AG, New York Branch as the Facility Agent. See Note 7. Borrowings, for details.
[20] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[21] 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.
[22] 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.
[23] Investment is held by New Mountain Finance Holdings, L.L.C.
[24] 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
[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] All or a portion of interest contains PIK interest.
[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. The preferred equity in ACI Parent Inc. is entitled to receive cumulative preferential dividends at a rate of 11.75% per annum.
[29] 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.
[30] Investment is on non-accrual status. See Note 3. Investments, for details.
[31] All or a portion of interest contains PIK interest.
[32] Investment is on non-accrual status. See Note 3. Investments, for details.
[33] Investment is held by NMF Ancora Holdings, Inc.
[34] Investment is held by NMF Ancora Holdings, Inc.
[35] The Company holds investments in two wholly-owned subsidiaries of Appriss Health Holdings, Inc. The company holds a first lien term loan and a first lien revolver in Appriss Health, LLC, and preferred equity in Appriss Health Intermediate Holdings, Inc. The preferred equity is entitled to receive preferential dividends at a rate of 11.0% per annum.
[36] 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, 2023, 14.8% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[37] 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.
[38] Investment is held by New Mountain Finance SBIC II, L.P.
[39] Investment is held by New Mountain Finance SBIC II, L.P.
[40] The Company holds investments in two wholly-owned subsidiary of Diamond Parent Holdings Corp. The Company holds three first lien term loans and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc. The preferred equity in Diligent Preferred Issuer Inc. is entitled to receive cumulative preferential dividends at a rate 10.5% per annum.
[41] 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.
[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 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.
[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] Investment is held by NMF HB, Inc.
[46] Investment is held by NMF HB, Inc.
[47] Investment is held by NMF TRM, LLC.
[48] Investment is held by NMF QID NGL Holdings, Inc.
[49] The Company holds preferred equity in Knockout Intermediate Holdings I Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Kaseya, Inc., a wholly-owned subsidiary of Knockout Intermediate Holdings I Inc. The preferred equity is entitled to received cumulative preferential dividends at a rate of 11.75% per annum.
[50] 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.
[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] 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%.
[53] Investment is held by New Mountain Net Lease Corporation.
[54] Investment is held by New Mountain Net Lease Corporation.
[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 two first lien term loans and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidiary of OA Topco, L.P.
[58] Investment is held by NMF OEC, Inc.
[59] The Company holds preferred equity in OEC Holdco, LLC, and two second lien term loans in OEConnection LLC, a wholly-owned subsidiary of OEC Holdco, LLC. The preferred equity is entitled to receive preferential dividends of 11.0% per annum.
[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] 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 $16,500 as of December 31, 2023. See Note 2. Summary of Significant Accounting Policies, for details.
[62] Investment is held by NMF Permian Holdings, LLC.
[63] Investment is held by NMF Permian Holdings, LLC.
[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] 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.
[66] Investment is held by NMF Pioneer, Inc.
[67] Investment is held by NMF Pioneer, Inc.
[68] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2023, the par value U.S. dollar equivalent of the first lien term loan, and drawn first lien term loan is $16,600 and $14,457, respectively. See Note 2. Summary of Significant Accounting Policies, for details.