v3.26.3
Investments - NMFC Senior Loan Program III LLC (Details)
€ in Thousands, £ in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended 13 Months Ended
Aug. 06, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Aug. 05, 2025
USD ($)
Sep. 30, 2026
EUR (€)
 [3],[4],[11],[20],[52]
Sep. 30, 2026
GBP (£)
 [3],[4],[11],[20],[52]
Dec. 31, 2025
USD ($)
Dec. 31, 2025
EUR (€)
 [7],[8],[12]
Dec. 31, 2025
GBP (£)
 [7],[8],[12],[16],[51]
Dec. 31, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
May 03, 2013
USD ($)
Schedule of Investments [Line Items]                            
Cost   $ 2,453,990 [1] $ 2,453,990 [1]       $ 2,912,115 [2]              
Investments at fair value   2,259,962 [1] 2,259,962 [1]       2,742,013 [2]              
Investment, Identifier [Axis]: AAC Lender Holdings, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[5]   0 0                      
Investments at fair value [3],[4],[5]   0 0                      
Investment, Identifier [Axis]: AAC Lender Holdings, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [6],[7],[8]             0              
Investments at fair value [6],[7],[8]             0              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (37) [3],[4],[9] (37) [3],[4],[9]       (37) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   3,659 [3],[4],[9],[11] 3,659 [3],[4],[9],[11]       3,659 [7],[8],[10],[12]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   9,402 [3],[13] 9,402 [3],[13]       22,398 [7],[14],[15]              
Investments at fair value   9,426 [3],[13] 9,426 [3],[13]       22,502 [7],[14],[15]              
Principal amount   9,426 [3],[11],[13] 9,426 [3],[11],[13]       22,502 [7],[12],[14],[15]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   7,223 [3],[13] 7,223 [3],[13]       19,932 [7],[8],[16]              
Investments at fair value   7,244 [3],[13] 7,244 [3],[13]       20,009 [7],[8],[16]              
Principal amount   7,244 [3],[11],[13] 7,244 [3],[11],[13]       20,009 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   5,938 [3],[17],[18] 5,938 [3],[17],[18]       9,463 [7],[19]              
Investments at fair value   5,955 [3],[17],[18] 5,955 [3],[17],[18]       9,500 [7],[19]              
Principal amount   5,955 [3],[11],[17],[18] 5,955 [3],[11],[17],[18]       9,500 [7],[12],[19]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   3,474 [3],[4],[20] 3,474 [3],[4],[20]       7,267 [7],[19]              
Investments at fair value   3,482 [3],[4],[20] 3,482 [3],[4],[20]       7,300 [7],[19]              
Principal amount   3,482 [3],[4],[11],[20] 3,482 [3],[4],[11],[20]       7,300 [7],[12],[19]              
Investment, Identifier [Axis]: AAH Topco, LLC | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost   7,499 [3],[13] 7,499 [3],[13]       17,527 [7],[8],[16]              
Investments at fair value   7,430 [3],[13] 7,430 [3],[13]       17,418 [7],[8],[16]              
Principal amount   7,543 [3],[11],[13] 7,543 [3],[11],[13]       17,649 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AAH Topco, LLC | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost   883 [3],[4],[20] 883 [3],[4],[20]       6,873 [7],[19]              
Investments at fair value   875 [3],[4],[20] 875 [3],[4],[20]       6,831 [7],[19]              
Principal amount   888 [3],[4],[11],[20] 888 [3],[4],[11],[20]       6,921 [7],[12],[19]              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             2,307              
Investments at fair value [7],[8],[10]             1,864              
Principal amount [7],[8],[10],[12]             2,330              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[21]             0              
Investments at fair value [7],[8],[10],[21]             (5)              
Principal amount [7],[8],[10],[12],[21]             24              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             22,547              
Investments at fair value [7],[14],[15]             18,114              
Principal amount [7],[12],[14],[15]             22,643              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             4,319              
Investments at fair value [7],[8],[16]             3,477              
Principal amount [7],[8],[12],[16]             4,346              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,994              
Investments at fair value [7],[8],[16]             3,211              
Principal amount [7],[8],[12],[16]             4,014              
Investment, Identifier [Axis]: ACI Parent Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[21]             20,124              
Investments at fair value [7],[8],[21]             2,087              
Principal amount             20,249              
Investment, Identifier [Axis]: AI Altius US Bidco, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,051              
Investments at fair value [7],[8],[16]             3,062              
Principal amount [7],[8],[12],[16]             3,062              
Investment, Identifier [Axis]: AI Altius US Bidco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,077              
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   8,666 8,666                      
Investments at fair value [3],[17],[18]   8,664 8,664                      
Principal amount [3],[11],[17],[18]   8,697 8,697                      
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   403 403                      
Investments at fair value [3],[4],[9],[20]   403 403                      
Principal amount [3],[4],[9],[11],[20]   405 405                      
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4) (4)                      
Investments at fair value [3],[4],[9]   (4) (4)                      
Principal amount [3],[4],[9],[11]   959 959                      
Investment, Identifier [Axis]: Acumatica Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   13,759 [3],[17],[18] 13,759 [3],[17],[18]       39,188 [7],[14],[15]              
Investments at fair value   13,713 [3],[17],[18] 13,713 [3],[17],[18]       39,188 [7],[14],[15]              
Principal amount   13,759 [3],[11],[17],[18] 13,759 [3],[11],[17],[18]       39,188 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Acumatica Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   (31) [3],[4],[9] (31) [3],[4],[9]       0 [7],[8],[10]              
Principal amount   9,403 [3],[4],[9],[11] 9,403 [3],[4],[9],[11]       9,403 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   4,748 [3],[4],[20] 4,748 [3],[4],[20]       4,743 [7],[8],[16]              
Investments at fair value   4,780 [3],[4],[20] 4,780 [3],[4],[20]       4,780 [7],[8],[16]              
Principal amount   4,780 [3],[4],[11],[20] 4,780 [3],[4],[11],[20]       4,780 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   285 [3],[4],[9],[20] 285 [3],[4],[9],[20]       119 [7],[8],[10],[16]              
Investments at fair value   288 [3],[4],[9],[20] 288 [3],[4],[9],[20]       120 [7],[8],[10],[16]              
Principal amount   288 [3],[4],[9],[11],[20] 288 [3],[4],[9],[11],[20]       120 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   760 [3],[4],[9],[11] 760 [3],[4],[9],[11]       1,048 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (7) [3],[4],[9] (7) [3],[4],[9]       (5) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   667 [3],[4],[9],[11] 667 [3],[4],[9],[11]       547 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             8,297              
Investments at fair value [7],[8],[16]             8,382              
Principal amount [7],[8],[12],[16]             8,382              
Investment, Identifier [Axis]: Ambrosia Holdco Corp. | Class A-1 Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   1,348 1,348                      
Investments at fair value [3],[18]   37 37                      
Investment, Identifier [Axis]: Ambrosia Holdco Corp. | Class A-1 Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,300 1,300                      
Investments at fair value [3],[4]   36 36                      
Investment, Identifier [Axis]: Ambrosia Topco LLC | Class A-1 common units 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15]             1,348              
Investments at fair value [7],[15]             590              
Investment, Identifier [Axis]: Ambrosia Topco LLC | Class A-1 common units 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             1,300              
Investments at fair value [7],[8]             569              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9] (10) [3],[4],[9]       (10) [7],[8],[10]              
Investments at fair value   (109) [3],[4],[9] (109) [3],[4],[9]       (15) [7],[8],[10]              
Principal amount   1,969 [3],[4],[9],[11] 1,969 [3],[4],[9],[11]       1,969 [7],[8],[10],[12]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   18,596 [3],[4],[20] 18,596 [3],[4],[20]       18,729 [7],[8],[16]              
Investments at fair value   17,589 [3],[4],[20] 17,589 [3],[4],[20]       18,626 [7],[8],[16]              
Principal amount   18,623 [3],[4],[11],[20] 18,623 [3],[4],[11],[20]       18,769 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,174 [3],[17],[18] 5,174 [3],[17],[18]       5,211 [7],[14],[15]              
Investments at fair value   4,895 [3],[17],[18] 4,895 [3],[17],[18]       5,183 [7],[14],[15]              
Principal amount   5,183 [3],[11],[17],[18] 5,183 [3],[11],[17],[18]       5,223 [7],[12],[14],[15]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   679 [3],[4],[20] 679 [3],[4],[20]       684 [7],[8],[16]              
Investments at fair value   643 [3],[4],[20] 643 [3],[4],[20]       681 [7],[8],[16]              
Principal amount   681 [3],[4],[11],[20] 681 [3],[4],[11],[20]       686 [7],[8],[12],[16]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien                            
Schedule of Investments [Line Items]                            
Principal amount   31,406 31,406                      
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[5],[9] 0 [3],[4],[5],[9]       0 [6],[7],[8],[10]              
Investments at fair value   0 [3],[4],[5],[9] 0 [3],[4],[5],[9]       0 [6],[7],[8],[10]              
Principal amount   2,652 [3],[4],[5],[9],[11] 2,652 [3],[4],[5],[9],[11]       2,652 [6],[7],[8],[10],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   29,842 [3],[4],[20] 29,842 [3],[4],[20]       29,842 [7],[8],[16]              
Investments at fair value   16,000 [3],[4],[20] 16,000 [3],[4],[20]       17,999 [7],[8],[16]              
Principal amount   29,879 [3],[4],[11],[20] 29,879 [3],[4],[11],[20]       29,879 [7],[8],[12],[16]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,527 [3],[4] 1,527 [3],[4]       1,527 [7],[8]              
Investments at fair value   0 [3],[4] 0 [3],[4]       0 [7],[8]              
Principal amount   1,527 [3],[4],[11] 1,527 [3],[4],[11]       1,527 [7],[8],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Principal amount                     $ 17,927 $ 13,479    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4] 0 [3],[4]       0 [7],[8]              
Investments at fair value   0 [3],[4] 0 [3],[4]       0 [7],[8]              
Principal amount   5,230 [3],[4],[11] 5,230 [3],[4],[11]       5,230 [7],[8],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | Subordinated | Non-accrual status                            
Schedule of Investments [Line Items]                            
Principal amount                         $ 5,230  
Investment, Identifier [Axis]: Anaplan, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             10,456              
Investments at fair value [7],[14],[15]             10,513              
Principal amount [7],[12],[14],[15]             10,513              
Investment, Identifier [Axis]: Associations Finance, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   29,787 29,787                      
Investments at fair value [3],[4],[20]   29,794 29,794                      
Principal amount [3],[4],[11],[20]   29,794 29,794                      
Investment, Identifier [Axis]: Associations Finance, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   2,198 2,198                      
Investments at fair value [3],[4],[9]   2,199 2,199                      
Principal amount [3],[4],[9],[11]   2,199 2,199                      
Investment, Identifier [Axis]: Associations Finance, Inc. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   10,187 10,187                      
Investments at fair value [3],[4]   10,200 10,200                      
Principal amount [3],[4],[11]   10,200 10,200                      
Investment, Identifier [Axis]: Associations Finance, Inc. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,890 3,890                      
Investments at fair value [3],[4]   3,895 3,895                      
Principal amount [3],[4],[11]   3,895 3,895                      
Investment, Identifier [Axis]: Associations, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             48,915              
Investments at fair value [7],[8],[16]             48,932              
Principal amount [7],[8],[12],[16]             48,932              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,639              
Investments at fair value [7],[8],[10]             1,639              
Principal amount [7],[8],[10],[12]             1,639              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (1) [3],[4],[9] (1) [3],[4],[9]       (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,612 [3],[4],[9],[11] 1,612 [3],[4],[9],[11]       2,186 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9] (2) [3],[4],[9]       (2) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   3,077 [3],[4],[9],[11] 3,077 [3],[4],[9],[11]       3,077 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Associations, Inc. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             9,158              
Investments at fair value [7],[8]             9,356              
Principal amount [7],[8],[12]             9,173              
Investment, Identifier [Axis]: Associations, Inc. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             3,497              
Investments at fair value [7],[8]             3,593              
Principal amount [7],[8],[12]             3,503              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[22]             (6)              
Investments at fair value [7],[8],[10],[22]             0              
Principal amount [7],[8],[10],[12],[22]             790              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   4,421 [3],[17],[18] 4,421 [3],[17],[18]       4,453 [7],[14],[15]              
Investments at fair value   4,429 [3],[17],[18] 4,429 [3],[17],[18]       4,463 [7],[14],[15]              
Principal amount   4,429 [3],[11],[17],[18] 4,429 [3],[11],[17],[18]       4,463 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,357 [3],[4],[20] 3,357 [3],[4],[20]       3,377 [7],[8],[16]              
Investments at fair value   3,385 [3],[4],[20] 3,385 [3],[4],[20]       3,411 [7],[8],[16]              
Principal amount   3,385 [3],[4],[11],[20] 3,385 [3],[4],[11],[20]       3,411 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   1,310 [3],[4],[20] 1,310 [3],[4],[20]       1,319 [7],[8],[16]              
Investments at fair value   1,318 [3],[4],[20] 1,318 [3],[4],[20]       1,328 [7],[8],[16]              
Principal amount   1,318 [3],[4],[11],[20] 1,318 [3],[4],[11],[20]       1,328 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd| First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[23]   (6) (6)                      
Investments at fair value [3],[4],[9],[23]   0 0                      
Principal amount [3],[4],[9],[11],[23]   790 790                      
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.) | First lien                            
Schedule of Investments [Line Items]                            
Cost   31,584 [3],[4],[20] 31,584 [3],[4],[20]       35,985 [7],[8],[16]              
Investments at fair value   31,576 [3],[4],[20] 31,576 [3],[4],[20]       36,155 [7],[8],[16]              
Principal amount   31,814 [3],[4],[11],[20] 31,814 [3],[4],[11],[20]       36,155 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   2,367 2,367                      
Investments at fair value [3],[4],[9],[20]   2,383 2,383                      
Principal amount [3],[4],[9],[11],[20]   2,383 2,383                      
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (10) (10)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   1,324 1,324                      
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,122              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (26)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,707              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   15,398 [3],[17],[18] 15,398 [3],[17],[18]       15,504 [7],[14],[15]              
Investments at fair value   15,484 [3],[17],[18] 15,484 [3],[17],[18]       15,602 [7],[14],[15]              
Principal amount   15,484 [3],[11],[17],[18] 15,484 [3],[11],[17],[18]       15,602 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,715 [3],[17],[18] 5,715 [3],[17],[18]       5,756 [7],[14],[15]              
Investments at fair value   5,739 [3],[17],[18] 5,739 [3],[17],[18]       5,782 [7],[14],[15]              
Principal amount   5,739 [3],[11],[17],[18] 5,739 [3],[11],[17],[18]       5,782 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   2,476 [3],[4],[20] 2,476 [3],[4],[20]       376 [7],[8],[16]              
Investments at fair value   2,488 [3],[4],[20] 2,488 [3],[4],[20]       378 [7],[8],[16]              
Principal amount   2,488 [3],[4],[11],[20] 2,488 [3],[4],[11],[20]       378 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC) | First lien                            
Schedule of Investments [Line Items]                            
Cost   3,031 [3],[4],[20] 3,031 [3],[4],[20]       3,038 [7],[8],[16]              
Investments at fair value   3,035 [3],[4],[20] 3,035 [3],[4],[20]       3,046 [7],[8],[16]              
Principal amount   3,035 [3],[4],[11],[20] 3,035 [3],[4],[11],[20]       3,046 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC) | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9] (4) [3],[4],[9]       (4) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   417 [3],[4],[9],[11] 417 [3],[4],[9],[11]       417 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Bonterra LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             14,955              
Investments at fair value [7],[14],[15]             14,952              
Principal amount [7],[12],[14],[15]             14,989              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   520 520                      
Investments at fair value [3],[4],[9]   512 512                      
Principal amount [3],[4],[9],[11]   521 521                      
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,629              
Investments at fair value [7],[8],[10],[16]             1,625              
Principal amount [7],[8],[10],[12],[16]             1,629              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             244              
Investments at fair value [7],[8],[10]             244              
Principal amount [7],[8],[10],[12]             244              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3) (3)                      
Investments at fair value [3],[4],[9]   (19) (19)                      
Principal amount [3],[4],[9],[11]   1,107 1,107                      
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             0              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             (3)              
Principal amount [7],[8],[10],[12]             1,384              
Investment, Identifier [Axis]: Bonterra LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   14,846 14,846                      
Investments at fair value [3],[17],[18]   14,615 14,615                      
Principal amount [3],[11],[17],[18]   14,876 14,876                      
Investment, Identifier [Axis]: Bonterra LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,620 1,620                      
Investments at fair value [3],[4],[20]   1,592 1,592                      
Principal amount [3],[4],[11],[20]   1,620 1,620                      
Investment, Identifier [Axis]: Brave Parent Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   20,890 [3],[24] 20,890 [3],[24]       21,040 [7],[25]              
Investments at fair value   20,542 [3],[24] 20,542 [3],[24]       21,124 [7],[25]              
Principal amount   20,963 [3],[11],[24] 20,963 [3],[11],[24]       21,124 [7],[12],[25]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   127 [3],[4],[9] 127 [3],[4],[9]       127 [7],[8],[10]              
Investments at fair value   125 [3],[4],[9] 125 [3],[4],[9]       125 [7],[8],[10]              
Principal amount   125 [3],[4],[9],[11] 125 [3],[4],[9],[11]       125 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (6) (6)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   811 811                      
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             822              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             811              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,961 [3],[17],[18] 8,961 [3],[17],[18]       13,177 [7],[14],[15]              
Investments at fair value   8,879 [3],[17],[18] 8,879 [3],[17],[18]       13,206 [7],[14],[15]              
Principal amount   8,879 [3],[11],[17],[18] 8,879 [3],[11],[17],[18]       13,206 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,395 [3],[17],[18] 3,395 [3],[17],[18]       8,976 [7],[14],[15]              
Investments at fair value   3,398 [3],[17],[18] 3,398 [3],[17],[18]       8,879 [7],[14],[15]              
Principal amount   3,398 [3],[11],[17],[18] 3,398 [3],[11],[17],[18]       8,879 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   1,023 [3],[4],[20] 1,023 [3],[4],[20]       3,395 [7],[14],[15]              
Investments at fair value   1,025 [3],[4],[20] 1,025 [3],[4],[20]       3,398 [7],[14],[15]              
Principal amount   1,025 [3],[4],[11],[20] 1,025 [3],[4],[11],[20]       3,398 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   759 [3],[17],[18] 759 [3],[17],[18]       1,023 [7],[8],[16]              
Investments at fair value   761 [3],[17],[18] 761 [3],[17],[18]       1,025 [7],[8],[16]              
Principal amount   761 [3],[11],[17],[18] 761 [3],[11],[17],[18]       1,025 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 5                            
Schedule of Investments [Line Items]                            
Cost   340 [3],[17],[18] 340 [3],[17],[18]       759 [7],[14],[15]              
Investments at fair value   341 [3],[17],[18] 341 [3],[17],[18]       761 [7],[14],[15]              
Principal amount   341 [3],[11],[17],[18] 341 [3],[11],[17],[18]       761 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 6                            
Schedule of Investments [Line Items]                            
Cost   271 [3],[17],[18] 271 [3],[17],[18]       340 [7],[14],[15]              
Investments at fair value   272 [3],[17],[18] 272 [3],[17],[18]       341 [7],[14],[15]              
Principal amount   272 [3],[11],[17],[18] 272 [3],[11],[17],[18]       341 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 7                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             271              
Investments at fair value [7],[14],[15]             272              
Principal amount [7],[12],[14],[15]             272              
Investment, Identifier [Axis]: CFS Management, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,519 [3],[4],[20] 12,519 [3],[4],[20]       12,124 [7],[8],[16]              
Investments at fair value   10,327 [3],[4],[20] 10,327 [3],[4],[20]       10,608 [7],[8],[16]              
Principal amount   12,518 [3],[4],[11],[20] 12,518 [3],[4],[11],[20]       12,124 [7],[8],[12],[16]              
Investment, Identifier [Axis]: CFS Management, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,739 [3],[17],[18] 3,739 [3],[17],[18]       3,621 [7],[14],[15]              
Investments at fair value   3,077 [3],[17],[18] 3,077 [3],[17],[18]       3,161 [7],[14],[15]              
Principal amount   3,730 [3],[11],[17],[18] 3,730 [3],[11],[17],[18]       3,612 [7],[12],[14],[15]              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             8,553              
Investments at fair value [7],[14],[15]             8,582              
Principal amount [7],[12],[14],[15]             8,582              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,078              
Investments at fair value [7],[8],[10],[16]             1,089              
Principal amount [7],[8],[10],[12],[16]             1,089              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (1)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             113              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             6,423              
Investments at fair value [7],[14],[15]             6,451              
Principal amount [7],[12],[14],[15]             6,451              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,629              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,086              
Investment, Identifier [Axis]: Capstone Borrower, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   3,286 3,286                      
Investments at fair value [4],[20]   3,621 3,621                      
Principal amount [4],[11],[20]   3,763 3,763                      
Investment, Identifier [Axis]: Cardinal Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   11,500 [13] 11,500 [13]       11,581 [19]              
Investments at fair value   10,358 [13] 10,358 [13]       11,366 [19]              
Principal amount   11,517 [11],[13] 11,517 [11],[13]       11,609 [12],[19]              
Investment, Identifier [Axis]: Cardinal Parent, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost   9,732 [3],[13] 9,732 [3],[13]       9,721 [7],[19]              
Investments at fair value   8,546 [3],[13] 8,546 [3],[13]       9,653 [7],[19]              
Principal amount   9,767 [3],[11],[13] 9,767 [3],[11],[13]       9,767 [7],[12],[19]              
Investment, Identifier [Axis]: Centegix Intermediate II, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   239 239                      
Investments at fair value [3],[17],[18]   239 239                      
Principal amount [3],[11],[17],[18]   240 240                      
Investment, Identifier [Axis]: Centegix Intermediate II, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   (6) (6)                      
Principal amount [3],[4],[9],[11]   1,177 1,177                      
Investment, Identifier [Axis]: CentralSquare Technologies, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   35,951 [3],[17],[18] 35,951 [3],[17],[18]       36,162 [7],[14],[15]              
Investments at fair value   36,234 [3],[17],[18] 36,234 [3],[17],[18]       36,497 [7],[14],[15]              
Principal amount   36,234 [3],[11],[17],[18] 36,234 [3],[11],[17],[18]       36,497 [7],[12],[14],[15]              
Investment, Identifier [Axis]: CentralSquare Technologies, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (50) [3],[4],[9] (50) [3],[4],[9]       (50) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   3,980 [3],[4],[9],[11] 3,980 [3],[4],[9],[11]       3,980 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   443 443                      
Investments at fair value [3],[4],[9],[20]   448 448                      
Principal amount [3],[4],[9],[11],[20]   448 448                      
Investment, Identifier [Axis]: Ciklum Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (32) [3],[4],[9],[23] (32) [3],[4],[9],[23]       (37) [7],[8],[10],[22]              
Investments at fair value   0 [3],[4],[9],[23] 0 [3],[4],[9],[23]       0 [7],[8],[10],[22]              
Principal amount   2,540 [3],[4],[9],[11],[23] 2,540 [3],[4],[9],[11],[23]       2,989 [7],[8],[10],[12],[22]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   9,294 [3],[17],[18] 9,294 [3],[17],[18]       9,351 [7],[14],[15]              
Investments at fair value   9,368 [3],[17],[18] 9,368 [3],[17],[18]       9,440 [7],[14],[15]              
Principal amount   9,368 [3],[11],[17],[18] 9,368 [3],[11],[17],[18]       9,440 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,657 [3],[4],[20] 4,657 [3],[4],[20]       5,280 [7],[8],[16]              
Investments at fair value   4,701 [3],[4],[20] 4,701 [3],[4],[20]       5,339 [7],[8],[16]              
Principal amount   4,701 [3],[4],[11],[20] 4,701 [3],[4],[11],[20]       5,339 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             1,279              
Investments at fair value [7],[8],[16]             1,291              
Principal amount [7],[8],[12],[16]             1,291              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             9              
Investments at fair value [7],[8],[10],[16]             9              
Principal amount [7],[8],[10],[12],[16]             9              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             602              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   603 603                      
Investments at fair value [3],[4],[20]   608 608                      
Principal amount [3],[4],[11],[20]   608 608                      
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,271 1,271                      
Investments at fair value [3],[4],[20]   1,282 1,282                      
Principal amount [3],[4],[11],[20]   1,282 1,282                      
Investment, Identifier [Axis]: Compsych Investments Corp | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (14)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,253              
Investment, Identifier [Axis]: Compsych Investments Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost   7,687 [3],[17],[18] 7,687 [3],[17],[18]       7,741 [7],[14],[15]              
Investments at fair value   7,731 [3],[17],[18] 7,731 [3],[17],[18]       7,790 [7],[14],[15]              
Principal amount   7,731 [3],[11],[17],[18] 7,731 [3],[11],[17],[18]       7,790 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Compsych Investments Corp. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (14) (14)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   2,253 2,253                      
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,971 [3],[18] 12,971 [3],[18]       13,475 [7],[14],[15]              
Investments at fair value   1,444 [3],[18] 1,444 [3],[18]       9,869 [7],[14],[15]              
Principal amount   13,373 [3],[11],[18] 13,373 [3],[11],[18]       13,518 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,160 [3],[18] 2,160 [3],[18]       2,244 [7],[14],[15]              
Investments at fair value   241 [3],[18] 241 [3],[18]       1,648 [7],[14],[15]              
Principal amount   2,233 [3],[11],[18] 2,233 [3],[11],[18]       2,257 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   388 1,075                      
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   1,453 [3],[4],[20] 1,453 [3],[4],[20]       1,463 [7],[8],[16]              
Investments at fair value   1,459 [3],[4],[20] 1,459 [3],[4],[20]       1,470 [7],[8],[16]              
Principal amount   1,459 [3],[4],[11],[20] 1,459 [3],[4],[11],[20]       1,470 [7],[8],[12],[16]              
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (1)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             147              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             14,123              
Investments at fair value [7],[14],[15]             14,243              
Principal amount [7],[12],[14],[15]             14,243              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   651 651                      
Investments at fair value [3],[4],[9],[20]   659 659                      
Principal amount [3],[4],[9],[11],[20]   659 659                      
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4) (4)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   330 330                      
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,291              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (12)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             989              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   14,034 14,034                      
Investments at fair value [3],[17],[18]   14,135 14,135                      
Principal amount [3],[11],[17],[18]   14,135 14,135                      
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,289 1,289                      
Investments at fair value [3],[4],[20]   1,288 1,288                      
Principal amount [3],[4],[11],[20]   1,288 1,288                      
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   24,079 [3],[17],[18] 24,079 [3],[17],[18]       24,034 [7],[14],[15]              
Investments at fair value   23,794 [3],[17],[18] 23,794 [3],[17],[18]       24,172 [7],[14],[15]              
Principal amount   24,172 [3],[11],[17],[18] 24,172 [3],[11],[17],[18]       24,172 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,004 [3],[4],[20] 5,004 [3],[4],[20]       5,001 [7],[8],[16]              
Investments at fair value   4,934 [3],[4],[20] 4,934 [3],[4],[20]       5,012 [7],[8],[16]              
Principal amount   5,012 [3],[4],[11],[20] 5,012 [3],[4],[11],[20]       5,012 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   4,693 [3],[17],[18] 4,693 [3],[17],[18]       4,687 [7],[14],[15]              
Investments at fair value   4,632 [3],[17],[18] 4,632 [3],[17],[18]       4,706 [7],[14],[15]              
Principal amount   4,706 [3],[11],[17],[18] 4,706 [3],[11],[17],[18]       4,706 [7],[12],[14],[15]              
Investment, Identifier [Axis]: DCA Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   962 962                      
Investments at fair value [3],[17],[18]   962 962                      
Principal amount [3],[11],[17],[18]   962 962                      
Investment, Identifier [Axis]: DCA Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   539 539                      
Investments at fair value [3],[4],[20]   539 539                      
Principal amount [3],[4],[11],[20]   539 539                      
Investment, Identifier [Axis]: DCA Investment Holding, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             1,781              
Investments at fair value [7],[14],[15]             1,574              
Principal amount [7],[12],[14],[15]             1,786              
Investment, Identifier [Axis]: DCA Investment Holding, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             994              
Investments at fair value [7],[8],[16]             882              
Principal amount [7],[8],[12],[16]             1,000              
Investment, Identifier [Axis]: DCA TopCo LP | Class A Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   617 617                      
Investments at fair value [3],[18]   617 617                      
Investment, Identifier [Axis]: DCA TopCo LP | Class A Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   345 345                      
Investments at fair value [3],[4]   345 345                      
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             9,466              
Investments at fair value [7],[8],[16]             9,464              
Principal amount [7],[8],[12],[16]             9,512              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[13]   3,215 3,215                      
Investments at fair value [3],[13]   3,215 3,215                      
Principal amount [3],[11],[13]   3,215 3,215                      
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,580 1,580                      
Investments at fair value [3],[4],[20]   1,587 1,587                      
Principal amount [3],[4],[11],[20]   1,587 1,587                      
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   2,405 [3],[4],[9],[11] 2,405 [3],[4],[9],[11]       2,405 [7],[8],[10],[12]              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             18,149              
Investments at fair value [7],[8],[16]             18,149              
Principal amount [7],[8],[12],[16]             18,149              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             6,797              
Investments at fair value [7],[19]             6,797              
Principal amount [7],[12],[19]             6,797              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,335              
Investments at fair value [7],[8],[16]             3,354              
Principal amount [7],[8],[12],[16]             3,354              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             1,335              
Investments at fair value [7],[14],[15]             1,335              
Principal amount [7],[12],[14],[15]             1,342              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             32              
Investments at fair value [7],[8],[10]             32              
Principal amount [7],[8],[10],[12]             32              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             (3)              
Principal amount [7],[8],[10],[12]             674              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             (22)              
Principal amount [7],[8],[10],[12]             4,462              
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   1,326 1,326                      
Investments at fair value [3],[17],[18]   1,321 1,321                      
Principal amount [3],[11],[17],[18]   1,331 1,331                      
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   2,612 2,612                      
Investments at fair value [3],[4],[9]   2,605 2,605                      
Principal amount [3],[4],[9],[11]   2,625 2,625                      
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3) (3)                      
Investments at fair value [3],[4],[9]   (5) (5)                      
Principal amount [3],[4],[9],[11]   674 674                      
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   (14) (14)                      
Principal amount [3],[4],[9],[11]   1,869 1,869                      
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9] (10) [3],[4],[9]       (10) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   986 [3],[4],[9],[11] 986 [3],[4],[9],[11]       986 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,602 [3],[4],[20] 12,602 [3],[4],[20]       12,686 [7],[8],[16]              
Investments at fair value   12,646 [3],[4],[20] 12,646 [3],[4],[20]       12,746 [7],[8],[16]              
Principal amount   12,646 [3],[4],[11],[20] 12,646 [3],[4],[11],[20]       12,746 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,062 [3],[17],[18] 1,062 [3],[17],[18]       1,069 [7],[14],[15]              
Investments at fair value   1,066 [3],[17],[18] 1,066 [3],[17],[18]       1,074 [7],[14],[15]              
Principal amount   1,066 [3],[11],[17],[18] 1,066 [3],[11],[17],[18]       1,074 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   63 [3],[4] 63 [3],[4]       64 [7],[8]              
Investments at fair value   64 [3],[4] 64 [3],[4]       64 [7],[8]              
Principal amount   64 [3],[4],[11] 64 [3],[4],[11]       64 [7],[8],[12]              
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20],[26]   27,082 27,082                      
Investments at fair value [3],[4],[20],[26]   23,727 23,727                      
Principal amount   27,116 27,116       90,671              
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16],[27]             81,859              
Investments at fair value [7],[8],[16],[27]             87,225              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   37,289 [3],[17],[18] 37,289 [3],[17],[18]       36,543 [7],[14],[15]              
Investments at fair value   31,801 [3],[17],[18] 31,801 [3],[17],[18]       35,715 [7],[14],[15]              
Principal amount   37,413 [3],[11],[17],[18] 37,413 [3],[11],[17],[18]       36,710 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,925 [3],[4],[20] 3,925 [3],[4],[20]       3,846 [7],[8],[16]              
Investments at fair value   3,347 [3],[4],[20] 3,347 [3],[4],[20]       3,760 [7],[8],[16]              
Principal amount   3,938 [3],[4],[11],[20] 3,938 [3],[4],[11],[20]       3,864 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   3,071 [3],[4],[20] 3,071 [3],[4],[20]       2,997 [7],[8],[16]              
Investments at fair value   2,636 [3],[4],[20] 2,636 [3],[4],[20]       2,945 [7],[8],[16]              
Principal amount   3,101 [3],[4],[11],[20] 3,101 [3],[4],[11],[20]       3,027 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,156 1,156                      
Investments at fair value [3],[4],[20]   1,156 1,156                      
Principal amount [3],[4],[11],[20]   1,156 1,156                      
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             9,047              
Investments at fair value [7],[14],[15]             9,045              
Principal amount [7],[12],[14],[15]             9,091              
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             (5)              
Principal amount [7],[8],[10],[12]             909              
Investment, Identifier [Axis]: Digicert, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   15,253 [3],[17],[18] 15,253 [3],[17],[18]       15,354 [7],[14],[15]              
Investments at fair value   15,345 [3],[17],[18] 15,345 [3],[17],[18]       15,346 [7],[14],[15]              
Principal amount   15,345 [3],[11],[17],[18] 15,345 [3],[11],[17],[18]       15,462 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Digicert, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9] (8) [3],[4],[9]       (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (8) [7],[8],[10]              
Principal amount   1,119 [3],[4],[9],[11] 1,119 [3],[4],[9],[11]       1,119 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Diligent Corporation | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,496 3,496                      
Investments at fair value [3],[4],[20]   3,391 3,391                      
Principal amount [3],[4],[11],[20]   3,505 3,505                      
Investment, Identifier [Axis]: Diligent Corporation | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,174 [3],[4],[9] 1,174 [3],[4],[9]       530 [7],[8],[10]              
Investments at fair value   1,140 [3],[4],[9] 1,140 [3],[4],[9]       532 [7],[8],[10]              
Principal amount   1,178 [3],[4],[9],[11] 1,178 [3],[4],[9],[11]       532 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4) (4)                      
Investments at fair value [3],[4],[9]   (35) (35)                      
Principal amount [3],[4],[9],[11]   1,087 1,087                      
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,733              
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (13)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,398              
Investment, Identifier [Axis]: Diligent Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             19,763              
Investments at fair value [7],[14],[15]             19,821              
Principal amount [7],[12],[14],[15]             19,821              
Investment, Identifier [Axis]: Diligent Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,388              
Investments at fair value [7],[8],[16]             3,398              
Principal amount [7],[8],[12],[16]             3,398              
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[28]             15,702              
Investments at fair value [7],[8],[28]             15,036              
Principal amount             15,827              
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   22,648 22,648       18,337     $ 19,156        
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   10,628 [3],[17],[18],[29] 10,628 [3],[17],[18],[29]       10,628 [7],[14],[15],[30]              
Investments at fair value   10,628 [3],[17],[18],[29] 10,628 [3],[17],[18],[29]       10,628 [7],[14],[15],[30]              
Principal amount   10,628 [3],[11],[17],[18],[29] 10,628 [3],[11],[17],[18],[29]       10,628 [7],[12],[14],[15],[30]              
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   340 [3],[4],[29] 340 [3],[4],[29]       340 [7],[8],[30]              
Investments at fair value   340 [3],[4],[29] 340 [3],[4],[29]       340 [7],[8],[30]              
Principal amount   340 [3],[4],[11],[29] 340 [3],[4],[11],[29]       340 [7],[8],[12],[30]              
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[29]   4,103 4,103                      
Investments at fair value [3],[4],[29]   11,680 11,680                      
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[30]             4,104              
Investments at fair value [7],[8],[30]             7,369              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   7,086 [3],[13],[31] 7,086 [3],[13],[31]       7,082 [7],[19],[32]              
Investments at fair value   7,007 [3],[13],[31] 7,007 [3],[13],[31]       7,113 [7],[19],[32]              
Principal amount   7,113 [3],[11],[13],[31] 7,113 [3],[11],[13],[31]       7,113 [7],[12],[19],[32]              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[31]   (21) (21)                      
Investments at fair value [3],[4],[9],[31]   (62) (62)                      
Principal amount [3],[4],[9],[11],[31]   4,190 4,190                      
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[19]             0              
Investments at fair value [7],[10],[19]             0              
Principal amount [7],[10],[12],[19]             1,206              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (21)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,190              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   145 145                      
Investments at fair value [3],[4]   41 41                      
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             145              
Investments at fair value [7],[8]             0              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series A Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,835 3,835                      
Investments at fair value [3],[4]   3,835 3,835                      
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series A preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             3,335              
Investments at fair value [7],[8]             3,335              
Principal amount   3,835 3,835       3,335              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series B Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   2,565 2,565                      
Investments at fair value [3],[4]   3,068 3,068                      
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series B preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             2,565              
Investments at fair value [7],[8]             3,009              
Principal amount   3,691 3,691       4,116              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. | Series B preferred shares | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   132 374                      
Investment, Identifier [Axis]: Eclipse Topco, Inc. | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[13],[31]   1,620 1,620                      
Investments at fair value [3],[13],[31]   1,616 1,616                      
Investment, Identifier [Axis]: Eclipse Topco, Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[19],[32]             2,207              
Investments at fair value [7],[19],[32]             2,228              
Principal amount   1,632 1,632       2,226              
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   30,383 [3],[4],[29],[33] 30,383 [3],[4],[29],[33]       26,596 [7],[8],[30],[34]              
Investments at fair value   30,418 [3],[4],[29],[33] 30,418 [3],[4],[29],[33]       26,646 [7],[8],[30],[34]              
Principal amount   30,418 [3],[4],[11],[29],[33] 30,418 [3],[4],[11],[29],[33]       26,646 [7],[8],[12],[30],[34]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (57) [3],[4],[9] (57) [3],[4],[9]       (57) [7],[8],[10]              
Investments at fair value   (129) [3],[4],[9] (129) [3],[4],[9]       (57) [7],[8],[10]              
Principal amount   5,750 [3],[4],[9],[11] 5,750 [3],[4],[9],[11]       5,750 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   35,308 [3],[4],[20] 35,308 [3],[4],[20]       35,292 [7],[8],[16]              
Investments at fair value   34,782 [3],[4],[20] 34,782 [3],[4],[20]       35,226 [7],[8],[16]              
Principal amount   35,582 [3],[4],[11],[20] 35,582 [3],[4],[11],[20]       35,582 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   19,845 [3],[17],[18] 19,845 [3],[17],[18]       19,800 [7],[14],[15]              
Investments at fair value   19,550 [3],[17],[18] 19,550 [3],[17],[18]       19,800 [7],[14],[15]              
Principal amount   20,000 [3],[11],[17],[18] 20,000 [3],[11],[17],[18]       20,000 [7],[12],[14],[15]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   156 156                      
Investments at fair value [3],[4],[9],[20]   158 158                      
Principal amount [3],[4],[9],[11],[20]   158 158                      
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             2,508              
Investments at fair value [7],[10],[25]             2,533              
Principal amount [7],[10],[12],[25]             2,533              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (12) (12)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   1,243 1,243                      
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             64              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             0              
Investments at fair value [7],[10],[25]             0              
Principal amount [7],[10],[12],[25]             191              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (14)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,400              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,338 [3],[24] 8,338 [3],[24]       8,410 [7],[25]              
Investments at fair value   8,370 [3],[24] 8,370 [3],[24]       8,449 [7],[25]              
Principal amount   8,370 [3],[11],[24] 8,370 [3],[11],[24]       8,449 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,644 [3],[4],[20] 4,644 [3],[4],[20]       4,682 [7],[8],[16]              
Investments at fair value   4,667 [3],[4],[20] 4,667 [3],[4],[20]       4,710 [7],[8],[16]              
Principal amount   4,667 [3],[4],[11],[20] 4,667 [3],[4],[11],[20]       4,710 [7],[8],[12],[16]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   2,798 [3],[24] 2,798 [3],[24]       2,822 [7],[25]              
Investments at fair value   2,810 [3],[24] 2,810 [3],[24]       2,836 [7],[25]              
Principal amount   2,810 [3],[11],[24] 2,810 [3],[11],[24]       2,836 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   2,781 [3],[24] 2,781 [3],[24]       2,805 [7],[25]              
Investments at fair value   2,792 [3],[24] 2,792 [3],[24]       2,818 [7],[25]              
Principal amount   2,792 [3],[11],[24] 2,792 [3],[11],[24]       2,818 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 5                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   2,682 2,682                      
Investments at fair value [3],[24]   2,704 2,704                      
Principal amount [3],[11],[24]   2,704 2,704                      
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 6                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   895 895                      
Investments at fair value [3],[4],[20]   903 903                      
Principal amount [3],[4],[11],[20]   903 903                      
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien- Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             837              
Investments at fair value [7],[8],[10],[16]             846              
Principal amount [7],[8],[10],[12],[16]             846              
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[24],[35]   5,000 5,000                      
Investments at fair value [3],[24],[35]   6,117 6,117                      
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[25],[36]             5,000              
Investments at fair value [7],[25],[36]             5,357              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   8,282 [3],[4],[20] 8,282 [3],[4],[20]       8,169 [7],[8],[16]              
Investments at fair value   8,299 [3],[4],[20] 8,299 [3],[4],[20]       8,167 [7],[8],[16]              
Principal amount   8,299 [3],[4],[11],[20] 8,299 [3],[4],[11],[20]       8,187 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   3,201 [3],[4],[9] 3,201 [3],[4],[9]       1,914 [7],[8],[10]              
Investments at fair value   3,208 [3],[4],[9] 3,208 [3],[4],[9]       1,914 [7],[8],[10]              
Principal amount   3,208 [3],[4],[9],[11] 3,208 [3],[4],[9],[11]       1,919 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (4)              
Investments at fair value [7],[8],[10]             (4)              
Principal amount [7],[8],[10],[12]             1,422              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9] (4) [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (7) [7],[8],[10]              
Principal amount   1,422 [3],[4],[9],[11] 1,422 [3],[4],[9],[11]       2,814 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   1,504 1,504                      
Investment, Identifier [Axis]: Firebird Co-Invest L.P. | LP Interest                            
Schedule of Investments [Line Items]                            
Cost   3,358 [3],[4],[37] 3,358 [3],[4],[37]       3,358 [7],[8],[38]              
Investments at fair value   4,350 [3],[4],[37] 4,350 [3],[4],[37]       3,358 [7],[8],[38]              
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.) | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost [19]             6,463              
Investments at fair value [19]             5,697              
Principal amount [12],[19]             6,474              
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.) | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost [8],[16]             862              
Investments at fair value [8],[16]             760              
Principal amount [8],[12],[16]             863              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             457              
Investments at fair value [7],[8],[10]             460              
Principal amount [7],[8],[10],[12]             460              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (23) (23)                      
Investments at fair value [3],[4],[9]   (12) (12)                      
Principal amount [3],[4],[9],[11]   2,311 2,311                      
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,849              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (21)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,311              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   7,716 [3],[17],[18] 7,716 [3],[17],[18]       36,683 [7],[14],[15]              
Investments at fair value   7,688 [3],[17],[18] 7,688 [3],[17],[18]       36,810 [7],[14],[15]              
Principal amount   7,726 [3],[11],[17],[18] 7,726 [3],[11],[17],[18]       36,810 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   271 [3],[4],[20] 271 [3],[4],[20]       4,012 [7],[8],[16]              
Investments at fair value   271 [3],[4],[20] 271 [3],[4],[20]       4,033 [7],[8],[16]              
Principal amount   272 [3],[4],[11],[20] 272 [3],[4],[11],[20]       4,033 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,994 [3],[4],[9],[20] 1,994 [3],[4],[9],[20]       826 [7],[8],[10],[16]              
Investments at fair value   2,014 [3],[4],[9],[20] 2,014 [3],[4],[9],[20]       834 [7],[8],[10],[16]              
Principal amount   2,014 [3],[4],[9],[11],[20] 2,014 [3],[4],[9],[11],[20]       834 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9] (8) [3],[4],[9]       (20) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   846 [3],[4],[9],[11] 846 [3],[4],[9],[11]       2,026 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   28,900 [3],[17],[18] 28,900 [3],[17],[18]       29,095 [7],[14],[15]              
Investments at fair value   29,006 [3],[17],[18] 29,006 [3],[17],[18]       29,234 [7],[14],[15]              
Principal amount   29,006 [3],[11],[17],[18] 29,006 [3],[11],[17],[18]       29,234 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   968 [3],[4],[20] 968 [3],[4],[20]       974 [7],[8],[16]              
Investments at fair value   965 [3],[4],[20] 965 [3],[4],[20]       972 [7],[8],[16]              
Principal amount   965 [3],[4],[11],[20] 965 [3],[4],[11],[20]       972 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   78 [3],[4] 78 [3],[4]       78 [7],[8]              
Investments at fair value   78 [3],[4] 78 [3],[4]       79 [7],[8]              
Principal amount   78 [3],[4],[11] 78 [3],[4],[11]       79 [7],[8],[12]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,947 [17],[18] 5,947 [17],[18]       5,871 [14],[15]              
Investments at fair value   5,885 [17],[18] 5,885 [17],[18]       5,871 [14],[15]              
Principal amount   6,301 [11],[17],[18] 6,301 [11],[17],[18]       6,350 [12],[14],[15]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost   22,447 [3],[24] 22,447 [3],[24]       22,436 [7],[25]              
Investments at fair value   22,500 [3],[24] 22,500 [3],[24]       22,500 [7],[25]              
Principal amount   22,500 [3],[11],[24] 22,500 [3],[11],[24]       22,500 [7],[12],[25]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost   10,791 [3],[4],[20] 10,791 [3],[4],[20]       10,754 [7],[8],[16]              
Investments at fair value   10,965 [3],[4],[20] 10,965 [3],[4],[20]       10,965 [7],[8],[16]              
Principal amount   10,965 [3],[4],[11],[20] 10,965 [3],[4],[11],[20]       10,965 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,197 [3],[17],[18] 6,197 [3],[17],[18]       6,193 [7],[14],[15]              
Investments at fair value   6,192 [3],[17],[18] 6,192 [3],[17],[18]       6,192 [7],[14],[15]              
Principal amount   6,223 [3],[11],[17],[18] 6,223 [3],[11],[17],[18]       6,223 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   375 375                      
Investments at fair value [3],[4],[9],[20]   375 375                      
Principal amount [3],[4],[9],[11],[20]   377 377                      
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9] (3) [3],[4],[9]       (3) [7],[8],[10]              
Investments at fair value   (3) [3],[4],[9] (3) [3],[4],[9]       (3) [7],[8],[10]              
Principal amount   691 [3],[4],[9],[11] 691 [3],[4],[9],[11]       691 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   (8) [3],[4],[9] (8) [3],[4],[9]       (10) [7],[8],[10]              
Principal amount   1,698 [3],[4],[9],[11] 1,698 [3],[4],[9],[11]       2,074 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Funded Investments - First lien | Convey Health Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Unearned income   77 241                      
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [24]   21,027 21,027                      
Investments at fair value [24]   21,072 21,072                      
Principal amount [11],[24]   21,072 21,072                      
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (30) [4],[9] (30) [4],[9]       (30) [7],[8],[10]              
Investments at fair value   0 [4],[9] 0 [4],[9]       0 [7],[8],[10]              
Principal amount   3,951 [4],[9],[11] 3,951 [4],[9],[11]       3,951 [7],[8],[10],[12]              
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             35,742              
Investments at fair value [7],[14],[15]             35,918              
Principal amount [7],[12],[14],[15]             35,918              
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[25]             21,180              
Investments at fair value [7],[25]             21,233              
Principal amount [7],[12],[25]             21,233              
Investment, Identifier [Axis]: GEDC Equity, LLC | Participation Interest                            
Schedule of Investments [Line Items]                            
Cost   190 [3],[4] 190 [3],[4]       190 [7],[8]              
Investments at fair value   0 [3],[4] 0 [3],[4]       50 [7],[8]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   4,793 4,793                      
Investments at fair value [3],[4],[9]   4,213 4,213                      
Principal amount [3],[4],[9],[11]   4,818 4,818                      
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,779              
Investments at fair value [7],[8],[10]             1,786              
Principal amount [7],[8],[10],[12]             1,786              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             446              
Investments at fair value [7],[8],[10]             448              
Principal amount [7],[8],[10],[12]             448              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   (1) (1)                      
Principal amount [3],[4],[9],[11]   3 3                      
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             759              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (19)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,036              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   20,888 [3],[24] 20,888 [3],[24]       25,049 [7],[14],[15]              
Investments at fair value   18,280 [3],[24] 18,280 [3],[24]       25,079 [7],[14],[15]              
Principal amount   20,906 [3],[11],[24] 20,906 [3],[11],[24]       25,079 [7],[12],[14],[15]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   442 [3],[4] 442 [3],[4]       21,048 [7],[25]              
Investments at fair value   389 [3],[4] 389 [3],[4]       21,074 [7],[25]              
Principal amount   445 [3],[4],[11] 445 [3],[4],[11]       21,074 [7],[12],[25]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             2,874              
Investments at fair value [7],[8],[16]             2,878              
Principal amount [7],[8],[12],[16]             2,878              
Investment, Identifier [Axis]: Greenway Health, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,140 [3],[4],[20] 6,140 [3],[4],[20]       6,175 [7],[8],[16]              
Investments at fair value   6,033 [3],[4],[20] 6,033 [3],[4],[20]       6,238 [7],[8],[16]              
Principal amount   6,190 [3],[4],[11],[20] 6,190 [3],[4],[11],[20]       6,238 [7],[8],[12],[16]              
Investment, Identifier [Axis]: HBWM Holdings, LLC | Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[39],[40]   4,827 4,827                      
Investments at fair value [3],[39],[40]   11,659 11,659                      
Investment, Identifier [Axis]: HBWM Holdings, LLC | Common units                            
Schedule of Investments [Line Items]                            
Cost [7],[41],[42]             4,776              
Investments at fair value [7],[41],[42]             10,854              
Principal amount   4,827 4,827       4,776              
Investment, Identifier [Axis]: HP TLE Buyer, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   8,132 [3],[17],[18] 8,132 [3],[17],[18]       8,129 [7],[14],[15]              
Investments at fair value   8,168 [3],[17],[18] 8,168 [3],[17],[18]       8,127 [7],[14],[15]              
Principal amount   8,168 [3],[11],[17],[18] 8,168 [3],[11],[17],[18]       8,168 [7],[12],[14],[15]              
Investment, Identifier [Axis]: HP TLE Buyer, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (9) [3],[4],[9] (9) [3],[4],[9]       (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (9) [7],[8],[10]              
Principal amount   1,797 [3],[4],[9],[11] 1,797 [3],[4],[9],[11]       1,797 [7],[8],[10],[12]              
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost   25,381 [3],[24] 25,381 [3],[24]       23,683 [7],[25]              
Investments at fair value   15,637 [3],[24] 15,637 [3],[24]       19,640 [7],[25]              
Principal amount   25,426 [3],[11],[24] 25,426 [3],[11],[24]       23,738 [7],[12],[25]              
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,740 [3],[18] 4,740 [3],[18]       4,421 [7],[14],[15]              
Investments at fair value   2,924 [3],[18] 2,924 [3],[18]       3,673 [7],[14],[15]              
Principal amount   4,755 [3],[11],[18] 4,755 [3],[11],[18]       4,440 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             4,980              
Investments at fair value [7],[8],[16]             5,018              
Principal amount [7],[8],[12],[16]             5,018              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (12) [4],[9] (12) [4],[9]       (12) [7],[8],[10]              
Investments at fair value   0 [4],[9] 0 [4],[9]       0 [7],[8],[10]              
Principal amount   1,229 [4],[9],[11] 1,229 [4],[9],[11]       1,229 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [17],[18]   31,936 31,936                      
Investments at fair value [17],[18]   32,239 32,239                      
Principal amount [11],[17],[18]   32,239 32,239                      
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   4,947 4,947                      
Investments at fair value [4],[20]   4,980 4,980                      
Principal amount [4],[11],[20]   4,980 4,980                      
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company | First lien                            
Schedule of Investments [Line Items]                            
Cost   13,988 [17],[18] 13,988 [17],[18]       14,044 [14],[15]              
Investments at fair value   9,691 [17],[18] 9,691 [17],[18]       12,689 [14],[15]              
Principal amount   14,225 [11],[17],[18] 14,225 [11],[17],[18]       14,336 [12],[14],[15]              
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (2) (2)                      
Investments at fair value [3],[4],[9]   (2) (2)                      
Principal amount [3],[4],[9],[11]   220 220                      
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   3,554 3,554                      
Investments at fair value [3],[17],[18]   3,552 3,552                      
Principal amount [3],[11],[17],[18]   3,587 3,587                      
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   948 948                      
Investments at fair value [3],[4],[20]   948 948                      
Principal amount [3],[4],[11],[20]   958 958                      
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   511 511                      
Investments at fair value [3],[4],[20]   511 511                      
Principal amount [3],[4],[11],[20]   516 516                      
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (38) [3],[4],[9] (38) [3],[4],[9]       (38) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   3,780 [3],[4],[9],[11] 3,780 [3],[4],[9],[11]       3,780 [7],[8],[10],[12]              
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   32,121 [3],[17],[18] 32,121 [3],[17],[18]       32,329 [7],[14],[15]              
Investments at fair value   32,225 [3],[17],[18] 32,225 [3],[17],[18]       32,471 [7],[14],[15]              
Principal amount   32,225 [3],[11],[17],[18] 32,225 [3],[11],[17],[18]       32,471 [7],[12],[14],[15]              
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,500 [3],[4],[20] 2,500 [3],[4],[20]       2,517 [7],[8],[16]              
Investments at fair value   2,498 [3],[4],[20] 2,498 [3],[4],[20]       2,517 [7],[8],[16]              
Principal amount   2,498 [3],[4],[11],[20] 2,498 [3],[4],[11],[20]       2,517 [7],[8],[12],[16]              
Investment, Identifier [Axis]: IMA Financial Group, Inc. | Class C Common Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   4,411 4,411                      
Investments at fair value [3],[4]   4,411 4,411                      
Investment, Identifier [Axis]: Icefall Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   4,672 4,672                      
Investments at fair value [3],[4],[20]   4,828 4,828                      
Principal amount [3],[4],[11],[20]   4,828 4,828                      
Investment, Identifier [Axis]: Icefall Parent, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (17) (17)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   475 475                      
Investment, Identifier [Axis]: Infogain Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (28) [3],[4],[9] (28) [3],[4],[9]       (29) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   3,757 [3],[4],[9],[11] 3,757 [3],[4],[9],[11]       3,827 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Infogain Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   7,598 [3],[17],[18] 7,598 [3],[17],[18]       18,263 [7],[14],[15]              
Investments at fair value   7,625 [3],[17],[18] 7,625 [3],[17],[18]       18,324 [7],[14],[15]              
Principal amount   7,625 [3],[11],[17],[18] 7,625 [3],[11],[17],[18]       18,324 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Infogain Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   70 [3],[4],[9] 70 [3],[4],[9]       7,647 [7],[14],[15]              
Investments at fair value   70 [3],[4],[9] 70 [3],[4],[9]       7,685 [7],[14],[15]              
Principal amount   70 [3],[4],[9],[11] 70 [3],[4],[9],[11]       7,685 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Infogain Corporation | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   6,226 [3],[4] 6,226 [3],[4]       16,534 [7],[8]              
Investments at fair value   6,265 [3],[4] 6,265 [3],[4]       16,661 [7],[8]              
Principal amount   6,265 [3],[4],[11] 6,265 [3],[4],[11]       16,661 [7],[8],[12]              
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd | Structured Finance Obligation                            
Schedule of Investments [Line Items]                            
Cost   3,232 [3],[4],[23] 3,232 [3],[4],[23]       3,232 [7],[8],[22]              
Investments at fair value   3,217 [3],[4],[23] 3,217 [3],[4],[23]       3,277 [7],[8],[22]              
Principal amount   3,232 [3],[4],[11],[23] 3,232 [3],[4],[11],[23]       3,232 [7],[8],[12],[22]              
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   (8) (8)                      
Principal amount [3],[4],[9],[11]   1,503 1,503                      
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (8) (8)                      
Investments at fair value [3],[4],[9]   (8) (8)                      
Principal amount [3],[4],[9],[11]   1,503 1,503                      
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   7,740 7,740                      
Investments at fair value [3],[17],[18]   7,738 7,738                      
Principal amount [3],[11],[17],[18]   7,777 7,777                      
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,718 3,718                      
Investments at fair value [3],[4],[20]   3,700 3,700                      
Principal amount [3],[4],[11],[20]   3,718 3,718                      
Investment, Identifier [Axis]: Jawbreaker Topco, L.P. | Class A-1 Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[43]   2,476 2,476                      
Investments at fair value [3],[4],[43]   2,476 2,476                      
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   6,680 [3],[4],[20] 6,680 [3],[4],[20]       6,724 [7],[8],[16]              
Investments at fair value   6,140 [3],[4],[20] 6,140 [3],[4],[20]       6,331 [7],[8],[16]              
Principal amount   6,703 [3],[4],[11],[20] 6,703 [3],[4],[11],[20]       6,756 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,123 [3],[4],[20] 1,123 [3],[4],[20]       1,130 [7],[8],[16]              
Investments at fair value   1,033 [3],[4],[20] 1,033 [3],[4],[20]       1,066 [7],[8],[16]              
Principal amount   1,128 [3],[4],[11],[20] 1,128 [3],[4],[11],[20]       1,137 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   765 [3],[4],[20] 765 [3],[4],[20]       770 [7],[8],[16]              
Investments at fair value   703 [3],[4],[20] 703 [3],[4],[20]       726 [7],[8],[16]              
Principal amount   768 [3],[4],[11],[20] 768 [3],[4],[11],[20]       774 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   18 [3],[4] 18 [3],[4]       18 [7],[8]              
Investments at fair value   17 [3],[4] 17 [3],[4]       18 [7],[8]              
Principal amount   18 [3],[4],[11] 18 [3],[4],[11]       19 [7],[8],[12]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   537 [3],[4],[9],[20] 537 [3],[4],[9],[20]       269 [7],[8],[10],[16]              
Investments at fair value   540 [3],[4],[9],[20] 540 [3],[4],[9],[20]       270 [7],[8],[10],[16]              
Principal amount   540 [3],[4],[9],[11],[20] 540 [3],[4],[9],[11],[20]       270 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9] (6) [3],[4],[9]       (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,259 [3],[4],[9],[11] 1,259 [3],[4],[9],[11]       1,529 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   14,343 [3],[24] 14,343 [3],[24]       14,461 [7],[25]              
Investments at fair value   14,352 [3],[24] 14,352 [3],[24]       14,473 [7],[25]              
Principal amount   14,352 [3],[11],[24] 14,352 [3],[11],[24]       14,473 [7],[12],[25]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,106 [3],[24] 1,106 [3],[24]       1,236 [7],[25]              
Investments at fair value   1,109 [3],[24] 1,109 [3],[24]       1,241 [7],[25]              
Principal amount   1,109 [3],[11],[24] 1,109 [3],[11],[24]       1,241 [7],[12],[25]              
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc. | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[44]   14,203 14,203                      
Investments at fair value [3],[4],[44]   9,674 9,674                      
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[45]             13,248              
Investments at fair value [7],[8],[45]             13,324              
Principal amount   14,279 14,279       13,323              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[25]             6,198              
Investments at fair value [7],[25]             6,250              
Principal amount [7],[12],[25]             6,250              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   177 177                      
Investments at fair value [3],[4],[9]   174 174                      
Principal amount [3],[4],[9],[11]   179 179                      
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             293              
Investments at fair value [7],[10],[25]             296              
Principal amount [7],[10],[12],[25]             296              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             230              
Investments at fair value [7],[8],[10]             233              
Principal amount [7],[8],[10],[12]             233              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (5) (5)                      
Investments at fair value [3],[4],[9]   (13) (13)                      
Principal amount [3],[4],[9],[11]   537 537                      
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             0              
Investments at fair value [7],[10],[25]             0              
Principal amount [7],[10],[12],[25]             61              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             483              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   6,264 6,264                      
Investments at fair value [3],[24]   6,215 6,215                      
Principal amount [3],[11],[24]   6,310 6,310                      
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   351 351                      
Investments at fair value [3],[24]   345 345                      
Principal amount [3],[11],[24]   354 354                      
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   4,189 4,189                      
Investments at fair value [3],[4]   3,454 3,454                      
Principal amount [3],[4],[11]   4,231 4,231                      
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   72 72                      
Investments at fair value [3],[4],[9],[20]   73 73                      
Principal amount [3],[4],[9],[11],[20]   73 73                      
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (5) (5)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   346 346                      
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   245 245                      
Investment, Identifier [Axis]: Logrhythm, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             4,148              
Investments at fair value [7],[8]             3,994              
Principal amount [7],[8],[12]             4,196              
Investment, Identifier [Axis]: Logrhythm, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             (20)              
Principal amount [7],[8],[10],[12]             420              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   895 895                      
Investments at fair value [3],[4],[9]   898 898                      
Principal amount [3],[4],[9],[11]   898 898                      
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       (3) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (3) [7],[8],[10]              
Principal amount   2,738 [3],[4],[9],[11] 2,738 [3],[4],[9],[11]       819 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9] (3) [3],[4],[9]       (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (9) [7],[8],[10]              
Principal amount   819 [3],[4],[9],[11] 819 [3],[4],[9],[11]       2,317 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost   (5) [3],[4],[9] (5) [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (14) [7],[8],[10]              
Principal amount   1,419 [3],[4],[9],[11] 1,419 [3],[4],[9],[11]       3,698 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   18,311 [3],[17],[18] 18,311 [3],[17],[18]       16,979 [7],[14],[15]              
Investments at fair value   18,368 [3],[17],[18] 18,368 [3],[17],[18]       16,975 [7],[14],[15]              
Principal amount   18,368 [3],[11],[17],[18] 18,368 [3],[11],[17],[18]       17,038 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   953 [3],[4],[20] 953 [3],[4],[20]       1,417 [7],[8],[16]              
Investments at fair value   955 [3],[4],[20] 955 [3],[4],[20]       1,417 [7],[8],[16]              
Principal amount   955 [3],[4],[11],[20] 955 [3],[4],[11],[20]       1,422 [7],[8],[12],[16]              
Investment, Identifier [Axis]: MRI Software LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   498 [3],[4],[9] 498 [3],[4],[9]       398 [7],[8],[10]              
Investments at fair value   493 [3],[4],[9] 493 [3],[4],[9]       400 [7],[8],[10]              
Principal amount   501 [3],[4],[9],[11] 501 [3],[4],[9],[11]       400 [7],[8],[10],[12]              
Investment, Identifier [Axis]: MRI Software LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9] (8) [3],[4],[9]       (8) [7],[8],[10]              
Investments at fair value   (23) [3],[4],[9] (23) [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,502 [3],[4],[9],[11] 1,502 [3],[4],[9],[11]       1,602 [7],[8],[10],[12]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,021 [3],[24] 21,021 [3],[24]       21,183 [7],[25]              
Investments at fair value   20,721 [3],[24] 20,721 [3],[24]       21,205 [7],[25]              
Principal amount   21,036 [3],[11],[24] 21,036 [3],[11],[24]       21,205 [7],[12],[25]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   7,451 [3],[4],[20] 7,451 [3],[4],[20]       7,506 [7],[8],[16]              
Investments at fair value   7,341 [3],[4],[20] 7,341 [3],[4],[20]       7,512 [7],[8],[16]              
Principal amount   7,453 [3],[4],[11],[20] 7,453 [3],[4],[11],[20]       7,512 [7],[8],[12],[16]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   4,438 [3],[17],[18] 4,438 [3],[17],[18]       4,471 [7],[14],[15]              
Investments at fair value   4,372 [3],[17],[18] 4,372 [3],[17],[18]       4,474 [7],[14],[15]              
Principal amount   4,439 [3],[11],[17],[18] 4,439 [3],[11],[17],[18]       4,474 [7],[12],[14],[15]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   3,049 [3],[17],[18] 3,049 [3],[17],[18]       3,072 [7],[14],[15]              
Investments at fair value   3,005 [3],[17],[18] 3,005 [3],[17],[18]       3,075 [7],[14],[15]              
Principal amount   3,050 [3],[11],[17],[18] 3,050 [3],[11],[17],[18]       3,075 [7],[12],[14],[15]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 5                            
Schedule of Investments [Line Items]                            
Cost   778 [3],[4],[20] 778 [3],[4],[20]       784 [7],[8],[16]              
Investments at fair value   767 [3],[4],[20] 767 [3],[4],[20]       785 [7],[8],[16]              
Principal amount   779 [3],[4],[11],[20] 779 [3],[4],[11],[20]       785 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   1,861 1,861                      
Investments at fair value [3],[4],[9],[20]   1,878 1,878                      
Principal amount [3],[4],[9],[11],[20]   1,878 1,878                      
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,959              
Investments at fair value [7],[8],[10],[16]             1,979              
Principal amount [7],[8],[10],[12],[16]             1,979              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             57              
Investments at fair value [7],[8],[10]             57              
Principal amount [7],[8],[10],[12]             57              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,099 [3],[4],[9],[11] 1,099 [3],[4],[9],[11]       1,709 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9] (2) [3],[4],[9]       (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   308 [3],[4],[9],[11] 308 [3],[4],[9],[11]       251 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Matterhorn Finco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[23]   (10) (10)                      
Investments at fair value [3],[4],[9],[23]   (10) (10)                      
Principal amount [3],[4],[9],[11],[23]   1,985 1,985                      
Investment, Identifier [Axis]: Matterhorn Finco, Inc., | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18],[23]   7,925 7,925                      
Investments at fair value [3],[17],[18],[23]   7,923 7,923                      
Principal amount [3],[11],[17],[18],[23]   7,963 7,963                      
Investment, Identifier [Axis]: Meta Buyer LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [14],[15]             2,972              
Investments at fair value [14],[15]             2,972              
Principal amount [12],[14],[15]             2,987              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   175 175                      
Investments at fair value [3],[4],[9]   175 175                      
Principal amount [3],[4],[9],[11]   176 176                      
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   159 159                      
Investments at fair value [3],[4],[9]   159 159                      
Principal amount [3],[4],[9],[11]   160 160                      
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (1) [3],[4],[9] (1) [3],[4],[9]       0 [8],[10]              
Investments at fair value   (2) [3],[4],[9] (2) [3],[4],[9]       0 [8],[10]              
Principal amount   376 [3],[4],[9],[11] 376 [3],[4],[9],[11]       819 [8],[10],[12]              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [8],[10]              
Investments at fair value   (3) [3],[4],[9] (3) [3],[4],[9]       0 [8],[10]              
Principal amount   642 [3],[4],[9],[11] 642 [3],[4],[9],[11]       409 [8],[10],[12]              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost [8],[10]             (2)              
Investments at fair value [8],[10]             (2)              
Principal amount [8],[10],[12]             536              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   2,958 2,958                      
Investments at fair value [3],[17],[18]   2,957 2,957                      
Principal amount [3],[11],[17],[18]   2,972 2,972                      
Investment, Identifier [Axis]: Meta Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   405 405                      
Investments at fair value [3],[4]   406 406                      
Principal amount [3],[4],[11]   408 408                      
Investment, Identifier [Axis]: Model N, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             43,592              
Investments at fair value [7],[14],[15]             43,774              
Principal amount [7],[12],[14],[15]             43,774              
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (24) (24)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   4,825 4,825                      
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             9,047              
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (24)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,825              
Investment, Identifier [Axis]: Model N, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   43,281 43,281                      
Investments at fair value [3],[17],[18]   43,442 43,442                      
Principal amount [3],[11],[17],[18]   43,442 43,442                      
Investment, Identifier [Axis]: Model N, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   4,479 4,479                      
Investments at fair value [3],[4],[20]   4,501 4,501                      
Principal amount [3],[4],[11],[20]   4,501 4,501                      
Investment, Identifier [Axis]: NC Topco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             5,838              
Investments at fair value [7],[14],[15]             5,862              
Principal amount [7],[12],[14],[15]             5,862              
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   5,797 5,797                      
Investments at fair value [3],[17],[18]   5,819 5,819                      
Principal amount [3],[11],[17],[18]   5,819 5,819                      
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,652 1,652                      
Investments at fair value [3],[4],[20]   1,660 1,660                      
Principal amount [3],[4],[11],[20]   1,660 1,660                      
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3) (3)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   669 669                      
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,672              
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             669              
Investment, Identifier [Axis]: NHME Holdings Corp. | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             4,000              
Investments at fair value [7],[8],[46],[47]             0              
Investment, Identifier [Axis]: NHME Holdings Corp. | Warrants                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             1,000              
Investments at fair value [7],[8],[46],[47]             0              
Investment, Identifier [Axis]: NM GP Holdco, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   406 406       390     322        
Investment, Identifier [Axis]: NM GP Holdco, LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[23],[48],[49]   862 862                      
Investments at fair value [3],[23],[48],[49]   406 406                      
Investment, Identifier [Axis]: NM GP Holdco, LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[22],[47],[50]             850              
Investments at fair value [7],[22],[47],[50]             390              
Investment, Identifier [Axis]: NM NL Holdings, L.P.                            
Schedule of Investments [Line Items]                            
Investments at fair value   111,959 111,959       106,096     104,512        
Investment, Identifier [Axis]: NM NL Holdings, L.P. | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[23],[48],[49]   73,202 73,202                      
Investments at fair value [3],[23],[48],[49]   111,959 111,959                      
Investment, Identifier [Axis]: NM NL Holdings, L.P. | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[22],[47],[50]             74,248              
Investments at fair value [7],[22],[47],[50]             106,096              
Investment, Identifier [Axis]: NM YI LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value             8,641     9,960        
Investment, Identifier [Axis]: NM YI, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   8,784 8,784       8,641              
Investment, Identifier [Axis]: NM YI, LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[48],[49]   6,272 6,272                      
Investments at fair value [3],[48],[49]   8,784 8,784                      
Investment, Identifier [Axis]: NM YI, LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[47],[50]             6,272              
Investments at fair value [7],[47],[50]             8,641              
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   155,200 155,200       160,000     160,000        
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[23],[49]   160,000 160,000                      
Investments at fair value [3],[4],[23],[49]   155,200 155,200                      
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[22],[47]             160,000              
Investments at fair value [7],[8],[22],[47]             160,000              
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   102,284 102,284       112,400     112,400        
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[23],[49]   112,400 112,400                      
Investments at fair value [3],[4],[23],[49]   102,284 102,284                      
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[22],[47]             112,400              
Investments at fair value [7],[8],[22],[47]             112,400              
Investment, Identifier [Axis]: National HME, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             7,872              
Investments at fair value [7],[8],[46],[47]             0              
Principal amount [7],[8],[12],[46],[47]             8,281              
Investment, Identifier [Axis]: National HME, Inc./NHME Holdings Corp.                            
Schedule of Investments [Line Items]                            
Investments at fair value   0 0       0     3,000        
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   425 425                      
Investments at fair value [3],[4],[9],[20]   428 428                      
Principal amount [3],[4],[9],[11],[20]   428 428                      
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             2,152              
Investments at fair value [7],[8],[10],[16]             2,168              
Principal amount [7],[8],[10],[12],[16]             2,168              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16],[51]             389              
Investments at fair value [7],[8],[10],[16],[51]             392              
Principal amount [7],[8],[10],[12],[16],[51]             392              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             121              
Investments at fair value [7],[8],[10]             123              
Principal amount             123 € 105 [10]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,332 [3],[4],[9],[11] 1,332 [3],[4],[9],[11]       1,332 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[20],[52] 0 [3],[4],[9],[20],[52]       0 [7],[8],[10],[16],[51]              
Investments at fair value   0 [3],[4],[9],[20],[52] 0 [3],[4],[9],[20],[52]       0 [7],[8],[10],[16],[51]              
Principal amount   7,264 7,264   € 6,411 [9]   7,529 6,411 [10],[16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9],[20],[52] (10) [3],[4],[9],[20],[52]       (8) [7],[8],[10],[16],[51]              
Investments at fair value   0 [3],[4],[9],[20],[52] 0 [3],[4],[9],[20],[52]       0 [7],[8],[10],[16],[51]              
Principal amount   1,355 1,355   1,196 [9]   1,282 1,092 [10],[16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 4                            
Schedule of Investments [Line Items]                            
Cost   (16) [3],[4],[9] (16) [3],[4],[9]       (17) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   2,185 [3],[4],[9],[11] 2,185 [3],[4],[9],[11]       2,221 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   17,495 [3],[4],[20],[52] 17,495 [3],[4],[20],[52]       17,614 [7],[8],[16],[51]              
Investments at fair value   18,398 [3],[4],[20],[52] 18,398 [3],[4],[20],[52]       19,214 [7],[8],[16],[51]              
Principal amount   18,398 18,398   € 16,234   19,212 € 16,357 [16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   8,818 [3],[17],[18] 8,818 [3],[17],[18]       8,878 [7],[14],[15]              
Investments at fair value   8,865 [3],[17],[18] 8,865 [3],[17],[18]       8,932 [7],[14],[15]              
Principal amount   8,865 [3],[11],[17],[18] 8,865 [3],[11],[17],[18]       8,932 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   2,138 2,138                      
Investments at fair value [3],[4],[20]   2,152 2,152                      
Principal amount [3],[4],[11],[20]   2,152 2,152                      
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   3,563 3,563                      
Investments at fair value [3],[17],[18]   3,563 3,563                      
Principal amount [3],[11],[17],[18]   3,563 3,563                      
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   1,836 1,836                      
Investments at fair value [3],[18]   1,836 1,836                      
Principal amount [3],[11],[18]   1,836 1,836                      
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,682 1,682                      
Investments at fair value [3],[4]   1,682 1,682                      
Principal amount [3],[4],[11]   1,682 1,682                      
Investment, Identifier [Axis]: New ACI Buyer LLC | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   3,256 3,256                      
Investments at fair value [3],[18]   3,256 3,256                      
Principal amount [3],[11],[18]   3,256 3,256                      
Investment, Identifier [Axis]: New ACI Buyer LLC | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,537 1,537                      
Investments at fair value [3],[4]   1,537 1,537                      
Principal amount [3],[4],[11]   1,537 1,537                      
Investment, Identifier [Axis]: New ACI Holdings LLC | Class A Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   7,587 7,587                      
Investments at fair value [3],[18]   7,587 7,587                      
Investment, Identifier [Axis]: New ACI Holdings LLC | Class A Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,582 3,582                      
Investments at fair value [3],[4]   3,582 3,582                      
Investment, Identifier [Axis]: New ACI Holdings LLC | Class B Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   630 630                      
Investments at fair value [3],[4]   630 630                      
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   26,421 26,421                      
Investments at fair value [3],[18],[49]   26,421 26,421                      
Principal amount [3],[11],[18],[49]   26,421 26,421                      
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             51,933              
Investments at fair value [7],[15],[47]             51,933              
Principal amount [7],[12],[15],[47]             51,933              
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16],[47]             45,204              
Investments at fair value [7],[8],[16],[47]             45,204              
Principal amount [7],[8],[12],[16],[47]             45,204              
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   29,300 [3],[4],[49] 29,300 [3],[4],[49]       26,483 [7],[8],[47]              
Investments at fair value   29,426 [3],[4],[49] 29,426 [3],[4],[49]       26,878 [7],[8],[47]              
Principal amount   29,426 [3],[4],[11],[49] 29,426 [3],[4],[11],[49]       26,878 [7],[8],[12],[47]              
Investment, Identifier [Axis]: New Benevis Topco, LLC / New Benevis Holdco, Inc.                            
Schedule of Investments [Line Items]                            
Investments at fair value   91,749 91,749       154,464     140,102        
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common Stock 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   27,154 27,154                      
Investments at fair value [3],[18],[49]   24,446 24,446                      
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common Stock 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   12,768 12,768                      
Investments at fair value [3],[4],[49]   11,456 11,456                      
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common stock 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             27,155              
Investments at fair value [7],[15],[47]             20,733              
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common stock 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             12,768              
Investments at fair value [7],[8],[47]             9,716              
Investment, Identifier [Axis]: New Permian Holdco, Inc. / New Permian Holdco, L.L.C.                            
Schedule of Investments [Line Items]                            
Investments at fair value   67,394 67,394       63,833     63,076        
Investment, Identifier [Axis]: New Permian Holdco, Inc. | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   11,155 11,155                      
Investments at fair value [3],[4],[49]   11,000 11,000                      
Investment, Identifier [Axis]: New Permian Holdco, Inc. | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             11,155              
Investments at fair value [7],[8],[47]             12,000              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien                            
Schedule of Investments [Line Items]                            
Cost   23,336 [3],[4],[20],[49] 23,336 [3],[4],[20],[49]       23,336 [7],[8],[16],[47]              
Investments at fair value   23,336 [3],[4],[20],[49] 23,336 [3],[4],[20],[49]       23,336 [7],[8],[16],[47]              
Principal amount   23,336 [3],[4],[11],[20],[49] 23,336 [3],[4],[11],[20],[49]       23,336 [7],[8],[12],[16],[47]              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   33,058 [3],[4],[9],[20],[49] 33,058 [3],[4],[9],[20],[49]       28,497 [7],[8],[10],[16],[47]              
Investments at fair value   33,058 [3],[4],[9],[20],[49] 33,058 [3],[4],[9],[20],[49]       28,497 [7],[8],[10],[16],[47]              
Principal amount   33,058 [3],[4],[9],[11],[20],[49] 33,058 [3],[4],[9],[11],[20],[49]       28,497 [7],[8],[10],[12],[16],[47]              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[49] 0 [3],[4],[9],[49]       0 [7],[8],[10],[47]              
Investments at fair value   0 [3],[4],[9],[49] 0 [3],[4],[9],[49]       0 [7],[8],[10],[47]              
Principal amount   836 [3],[4],[9],[11],[49] 836 [3],[4],[9],[11],[49]       3,397 [7],[8],[10],[12],[47]              
Investment, Identifier [Axis]: Next Holdco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,189 [3],[17],[18] 6,189 [3],[17],[18]       6,232 [7],[14],[15]              
Investments at fair value   6,217 [3],[17],[18] 6,217 [3],[17],[18]       6,264 [7],[14],[15]              
Principal amount   6,217 [3],[11],[17],[18] 6,217 [3],[11],[17],[18]       6,264 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Next Holdco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9] (3) [3],[4],[9]       (3) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   339 [3],[4],[9],[11] 339 [3],[4],[9],[11]       339 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Notorious Buyer, LLC | Common Stock                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[53]   7,339 7,339                      
Investments at fair value [3],[4],[53]   4,859 4,859                      
Investment, Identifier [Axis]: Notorious Buyer, LLC | Common stock                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[54]             7,339              
Investments at fair value [7],[8],[54]             7,339              
Investment, Identifier [Axis]: Notorious Topco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,117 [3],[4] 5,117 [3],[4]       4,692 [7],[8]              
Investments at fair value   5,117 [3],[4] 5,117 [3],[4]       4,692 [7],[8]              
Principal amount   5,117 [3],[4],[11] 5,117 [3],[4],[11]       4,692 [7],[8],[12]              
Investment, Identifier [Axis]: Notorious Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[53] 0 [3],[4],[9],[53]       0 [7],[8],[10],[54]              
Investments at fair value   0 [3],[4],[9],[53] 0 [3],[4],[9],[53]       0 [7],[8],[10],[54]              
Principal amount   938 [3],[4],[9],[11],[53] 938 [3],[4],[9],[11],[53]       938 [7],[8],[10],[12],[54]              
Investment, Identifier [Axis]: Notorious Topco, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   2,490 [3],[4] 2,490 [3],[4]       2,252 [7],[8]              
Investments at fair value   2,490 [3],[4] 2,490 [3],[4]       2,252 [7],[8]              
Principal amount   2,490 [3],[4],[11] 2,490 [3],[4],[11]       2,252 [7],[8],[12]              
Investment, Identifier [Axis]: OEConnection LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,585 [3],[17],[18] 6,585 [3],[17],[18]       6,582 [14],[15]              
Investments at fair value   6,560 [3],[17],[18] 6,560 [3],[17],[18]       6,620 [14],[15]              
Principal amount   6,609 [3],[11],[17],[18] 6,609 [3],[11],[17],[18]       6,609 [12],[14],[15]              
Investment, Identifier [Axis]: OEConnection LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       0 [8],[10]              
Investments at fair value   (4) [3],[4],[9] (4) [3],[4],[9]       1 [8],[10]              
Principal amount   495 [3],[4],[9],[11] 495 [3],[4],[9],[11]       495 [8],[10],[12]              
Investment, Identifier [Axis]: OEConnection LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9] (3) [3],[4],[9]       (3) [8],[10]              
Investments at fair value   (5) [3],[4],[9] (5) [3],[4],[9]       0 [8],[10]              
Principal amount   618 [3],[4],[9],[11] 618 [3],[4],[9],[11]       618 [8],[10],[12]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,335              
Investments at fair value [7],[8],[10]             1,342              
Principal amount [7],[8],[10],[12]             1,342              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (2)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             488              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   22,205 [3],[13] 22,205 [3],[13]       22,081 [7],[19]              
Investments at fair value   21,057 [3],[13] 21,057 [3],[13]       22,171 [7],[19]              
Principal amount   22,283 [3],[11],[13] 22,283 [3],[11],[13]       22,171 [7],[12],[19]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,822 [3],[4] 1,822 [3],[4]       509 [7],[8],[16]              
Investments at fair value   1,730 [3],[4] 1,730 [3],[4]       509 [7],[8],[16]              
Principal amount   1,830 [3],[4],[11] 1,830 [3],[4],[11]       509 [7],[8],[12],[16]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   512 512                      
Investments at fair value [3],[4],[20]   484 484                      
Principal amount [3],[4],[11],[20]   512 512                      
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   196 [3],[4],[9],[20] 196 [3],[4],[9],[20]       64 [7],[8],[10],[16]              
Investments at fair value   191 [3],[4],[9],[20] 191 [3],[4],[9],[20]       61 [7],[8],[10],[16]              
Principal amount   195 [3],[4],[9],[11],[20] 195 [3],[4],[9],[11],[20]       61 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9] (6) [3],[4],[9]       (9) [7],[8],[10]              
Investments at fair value   (6) [3],[4],[9] (6) [3],[4],[9]       0 [7],[8],[10]              
Principal amount   292 [3],[4],[9],[11] 292 [3],[4],[9],[11]       426 [7],[8],[10],[12]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,958 [3],[13] 21,958 [3],[13]       22,118 [7],[19]              
Investments at fair value   21,554 [3],[13] 21,554 [3],[13]       22,163 [7],[19]              
Principal amount   21,994 [3],[11],[13] 21,994 [3],[11],[13]       22,163 [7],[12],[19]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   8,113 [3],[17],[18] 8,113 [3],[17],[18]       8,175 [7],[14],[15]              
Investments at fair value   7,951 [3],[17],[18] 7,951 [3],[17],[18]       8,175 [7],[14],[15]              
Principal amount   8,113 [3],[11],[17],[18] 8,113 [3],[11],[17],[18]       8,175 [7],[12],[14],[15]              
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC | Claim                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   14,500 14,500                      
Investments at fair value [3],[4]   2,755 2,755                      
Principal amount [3],[4],[11]   14,500 14,500                      
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   14,500 14,500       14,500 [7],[8]              
Investments at fair value   2,755 2,755       6,525 [7],[8]              
Principal amount [7],[8],[12]             14,500              
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                            
Schedule of Investments [Line Items]                            
Principal amount                           $ 20,000
Investment, Identifier [Axis]: PPVA Fund, L.P. | Claim                            
Schedule of Investments [Line Items]                            
Cost [55]   0 0                      
Investments at fair value [55]   0 0                      
Principal amount [11],[55]   0 0                      
Investment, Identifier [Axis]: PPVA Fund, L.P. | Collateralized Financing                            
Schedule of Investments [Line Items]                            
Cost [56],[57]             0              
Investments at fair value [56],[57]             0              
Principal amount [12],[56],[57]             0              
Investment, Identifier [Axis]: Permian Trust | First lien                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[29] 0 [3],[4],[29]       0 [7],[8],[30]              
Investments at fair value   0 [3],[4],[29] 0 [3],[4],[29]       0 [7],[8],[30]              
Principal amount   3,409 [3],[4],[11],[29] 3,409 [3],[4],[11],[29]       3,409 [7],[8],[12],[30]              
Investment, Identifier [Axis]: Permian Trust | Trust Claim                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[29],[58] 0 [3],[29],[58]       0 [7],[30],[59]              
Investments at fair value   0 [3],[29],[58] 0 [3],[29],[58]       0 [7],[30],[59]              
Principal amount   247 [3],[11],[29],[58] 247 [3],[11],[29],[58]       247 [7],[12],[30],[59]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   27,462 [3],[17],[18] 27,462 [3],[17],[18]       27,646 [7],[14],[15]              
Investments at fair value   23,788 [3],[17],[18] 23,788 [3],[17],[18]       26,649 [7],[14],[15]              
Principal amount   27,648 [3],[11],[17],[18] 27,648 [3],[11],[17],[18]       27,861 [7],[12],[14],[15]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,468 [3],[4],[9],[20] 1,468 [3],[4],[9],[20]       367 [7],[8],[10],[16]              
Investments at fair value   1,276 [3],[4],[9],[20] 1,276 [3],[4],[9],[20]       355 [7],[8],[10],[16]              
Principal amount   1,483 [3],[4],[9],[11],[20] 1,483 [3],[4],[9],[11],[20]       371 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (22) [3],[4],[9] (22) [3],[4],[9]       (33) [7],[8],[10]              
Investments at fair value   (311) [3],[4],[9] (311) [3],[4],[9]       (145) [7],[8],[10]              
Principal amount   2,225 [3],[4],[9],[11] 2,225 [3],[4],[9],[11]       3,337 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Pioneer Topco I, L.P. | Class A-2 Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[60]   2,000 2,000                      
Investments at fair value [3],[60]   1,600 1,600                      
Investment, Identifier [Axis]: Pioneer Topco I, L.P. | Class A-2 common units                            
Schedule of Investments [Line Items]                            
Cost [7],[61]             2,000              
Investments at fair value [7],[61]             2,200              
Investment, Identifier [Axis]: Planview Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   3,201 3,201                      
Investments at fair value [4],[20]   3,137 3,137                      
Principal amount [4],[11],[20]   3,745 3,745                      
Investment, Identifier [Axis]: Planview Parent, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost   9,216 [3],[4],[20] 9,216 [3],[4],[20]       9,212 [7],[8],[16]              
Investments at fair value   6,415 [3],[4],[20] 6,415 [3],[4],[20]       8,827 [7],[8],[16]              
Principal amount   9,231 [3],[4],[11],[20] 9,231 [3],[4],[11],[20]       9,231 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             15,511              
Investments at fair value [7],[19]             15,597              
Principal amount [7],[12],[19]             15,597              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             425              
Investments at fair value [7],[8],[10]             429              
Principal amount [7],[8],[10],[12]             429              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (39)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,861              
Investment, Identifier [Axis]: Project Accelerate Parent, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   10,298 [3],[24] 10,298 [3],[24]       10,372 [7],[25]              
Investments at fair value   10,334 [3],[24] 10,334 [3],[24]       10,413 [7],[25]              
Principal amount   10,334 [3],[11],[24] 10,334 [3],[11],[24]       10,413 [7],[12],[25]              
Investment, Identifier [Axis]: Project Accelerate Parent, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9] (8) [3],[4],[9]       (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   1,510 [3],[4],[9],[11] 1,510 [3],[4],[9],[11]       1,510 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   10,242 [3],[4],[20] 10,242 [3],[4],[20]       5,816 [14],[15]              
Investments at fair value   8,439 [3],[4],[20] 8,439 [3],[4],[20]       4,419 [14],[15]              
Principal amount   18,528 [3],[4],[11],[20] 18,528 [3],[4],[11],[20]       7,184 [12],[14],[15]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   6,124 [3],[17],[18] 6,124 [3],[17],[18]       4,109 [14],[15]              
Investments at fair value   3,247 [3],[17],[18] 3,247 [3],[17],[18]       2,613 [14],[15]              
Principal amount   7,128 [3],[11],[17],[18] 7,128 [3],[11],[17],[18]       4,163 [12],[14],[15]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   4,091 4,091                      
Investments at fair value [3],[17],[18]   1,882 1,882                      
Principal amount [3],[11],[17],[18]   4,131 4,131                      
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   625 625                      
Investments at fair value [3],[4],[20]   541 541                      
Principal amount [3],[4],[11],[20]   1,188 1,188                      
Investment, Identifier [Axis]: RLG Holdings, LLC | Second lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,542 1,542                      
Investments at fair value [3],[4],[20]   1,077 1,077                      
Principal amount [3],[4],[11],[20]   10,768 10,768                      
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,761 [3],[17],[18] 5,761 [3],[17],[18]       5,801 [7],[14],[15]              
Investments at fair value   5,784 [3],[17],[18] 5,784 [3],[17],[18]       5,799 [7],[14],[15]              
Principal amount   5,784 [3],[11],[17],[18] 5,784 [3],[11],[17],[18]       5,828 [7],[12],[14],[15]              
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   534 534                      
Investments at fair value [3],[4],[9]   537 537                      
Principal amount [3],[4],[9],[11]   537 537                      
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       (4) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (4) [7],[8],[10]              
Principal amount   1,258 [3],[4],[9],[11] 1,258 [3],[4],[9],[11]       899 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9] (4) [3],[4],[9]       0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       (9) [7],[8],[10]              
Principal amount   899 [3],[4],[9],[11] 899 [3],[4],[9],[11]       1,798 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RealPage, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [17],[18]   1,857 1,857                      
Investments at fair value [17],[18]   1,934 1,934                      
Principal amount [11],[17],[18]   1,953 1,953                      
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Trust Claim 1                            
Schedule of Investments [Line Items]                            
Cost   152 [3],[18] 152 [3],[18]       152 [7],[15]              
Investments at fair value   152 [3],[18] 152 [3],[18]       152 [7],[15]              
Principal amount   152 [3],[11],[18] 152 [3],[11],[18]       152 [7],[12],[15]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Trust Claim 2                            
Schedule of Investments [Line Items]                            
Cost   52 [3],[4] 52 [3],[4]       52 [7],[8]              
Investments at fair value   52 [3],[4] 52 [3],[4]       52 [7],[8]              
Principal amount   52 [3],[4],[11] 52 [3],[4],[11]       52 [7],[8],[12]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Warrants 1                            
Schedule of Investments [Line Items]                            
Cost   182 [3],[18] 182 [3],[18]       182 [7],[15]              
Investments at fair value   272 [3],[18] 272 [3],[18]       272 [7],[15]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Warrants 2                            
Schedule of Investments [Line Items]                            
Cost   62 [3],[4] 62 [3],[4]       62 [7],[8]              
Investments at fair value   93 [3],[4] 93 [3],[4]       93 [7],[8]              
Investment, Identifier [Axis]: Riskonnect Parent, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             6,349              
Investment, Identifier [Axis]: Sierra Enterprises, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             21,213              
Investments at fair value [7],[14],[15]             21,197              
Principal amount [7],[12],[14],[15]             21,357              
Investment, Identifier [Axis]: Sierra Enterprises, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (20)              
Investments at fair value [7],[8],[10]             (20)              
Principal amount [7],[8],[10],[12]             2,717              
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation                            
Schedule of Investments [Line Items]                            
Investments at fair value   1,889 1,889       2,000     2,000        
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[29]   11,501 11,501                      
Investments at fair value [3],[18],[29]   1,700 1,700                      
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[29]   1,282 1,282                      
Investments at fair value [3],[4],[29]   189 189                      
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[30]             11,501              
Investments at fair value [7],[15],[30]             1,799              
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[30]             1,282              
Investments at fair value [7],[8],[30]             201              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A Preferred Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[13]   19,636 19,636                      
Investments at fair value [3],[13]   15,467 15,467                      
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A Preferred Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   91 91                      
Investments at fair value [3],[4]   71 71                      
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares                            
Schedule of Investments [Line Items]                            
Principal amount   19,839 19,839       25,639              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             18,953              
Investments at fair value [7],[19]             18,204              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             6,534              
Investments at fair value [7],[8],[16]             6,276              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   738 1,447                      
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[62] 0 [3],[4],[9],[62]       0 [7],[8],[10],[63]              
Investments at fair value   0 [3],[4],[9],[62] 0 [3],[4],[9],[62]       0 [7],[8],[10],[63]              
Principal amount   2,695 [3],[4],[9],[11],[62] 2,695 [3],[4],[9],[11],[62]       2,695 [7],[8],[10],[12],[63]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   24,795 [3],[4],[20] 24,795 [3],[4],[20]       22,392 [7],[8],[16]              
Investments at fair value   17,123 [3],[4],[20] 17,123 [3],[4],[20]       14,820 [7],[8],[16]              
Principal amount   27,354 [3],[4],[11],[20] 27,354 [3],[4],[11],[20]       22,939 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   6,233 [3],[4],[20] 6,233 [3],[4],[20]       2,878 [7],[8],[16]              
Investments at fair value   6,393 [3],[4],[20] 6,393 [3],[4],[20]       2,594 [7],[8],[16]              
Principal amount   10,213 [3],[4],[11],[20] 10,213 [3],[4],[11],[20]       4,057 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost   359 [3],[4] 359 [3],[4]       337 [7],[15]              
Investments at fair value   424 [3],[4] 424 [3],[4]       337 [7],[15]              
Principal amount   424 [3],[4],[11] 424 [3],[4],[11]       337 [7],[12],[15]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost   366 [3],[18] 366 [3],[18]       325 [7],[8]              
Investments at fair value   366 [3],[18] 366 [3],[18]       325 [7],[8]              
Principal amount   366 [3],[11],[18] 366 [3],[11],[18]       325 [7],[8],[12]              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   45,155 45,155       40,365     91,620        
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Class B-1 Common Shares                            
Schedule of Investments [Line Items]                            
Cost   43,212 [3],[4],[29] 43,212 [3],[4],[29]       43,212 [8],[30],[51]              
Investments at fair value   5,000 [3],[4],[29] 5,000 [3],[4],[29]       5,000 [8],[30],[51]              
Principal amount   48,080 48,080       48,080              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Class B-2 Common Shares                            
Schedule of Investments [Line Items]                            
Cost   24,839 [3],[4],[29] 24,839 [3],[4],[29]       24,839 [8],[30],[51]              
Investments at fair value   0 [3],[4],[29] 0 [3],[4],[29]       0 [8],[30],[51]              
Principal amount   29,707 29,707       29,707              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Series C-2 Preferred Shares                            
Schedule of Investments [Line Items]                            
Principal amount   9,737 9,737                      
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Series C-2 Preferred Units                            
Schedule of Investments [Line Items]                            
Cost   9,737 [3],[4],[29] 9,737 [3],[4],[29]       8,719 [7],[8],[30]              
Investments at fair value   9,737 [3],[4],[29] 9,737 [3],[4],[29]       8,719 [7],[8],[30]              
Investment, Identifier [Axis]: Tempo Acquisition, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20],[23]   20,457 20,457                      
Investments at fair value [4],[20],[23]   21,864 21,864                      
Principal amount [4],[11],[20],[23]   27,466 27,466                      
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   20,296 [3],[4],[20] 20,296 [3],[4],[20]       19,903 [7],[8],[16]              
Investments at fair value   20,218 [3],[4],[20] 20,218 [3],[4],[20]       19,815 [7],[8],[16]              
Principal amount   20,218 [3],[4],[11],[20] 20,218 [3],[4],[11],[20]       19,815 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   16,576 [3],[17],[18] 16,576 [3],[17],[18]       16,245 [7],[14],[15]              
Investments at fair value   16,576 [3],[17],[18] 16,576 [3],[17],[18]       16,245 [7],[14],[15]              
Principal amount   16,576 [3],[11],[17],[18] 16,576 [3],[11],[17],[18]       16,245 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   899 [3],[17],[18] 899 [3],[17],[18]       890 [7],[14],[15]              
Investments at fair value   899 [3],[17],[18] 899 [3],[17],[18]       890 [7],[14],[15]              
Principal amount   899 [3],[11],[17],[18] 899 [3],[11],[17],[18]       890 [7],[12],[14],[15]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[15]             3,741              
Investments at fair value [7],[10],[15]             3,741              
Principal amount [7],[10],[12],[15]             3,741              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             42              
Investments at fair value [7],[8],[10]             42              
Principal amount [7],[8],[10],[12]             42              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (43)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,267              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   29,755 [3],[4],[20] 29,755 [3],[4],[20]       29,728 [7],[8],[16]              
Investments at fair value   29,576 [3],[4],[20] 29,576 [3],[4],[20]       29,875 [7],[8],[16]              
Principal amount   29,875 [3],[4],[11],[20] 29,875 [3],[4],[11],[20]       29,875 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,741 [3],[18] 3,741 [3],[18]       3,033 [7],[8],[16]              
Investments at fair value   3,704 [3],[18] 3,704 [3],[18]       3,054 [7],[8],[16]              
Principal amount   3,741 [3],[11],[18] 3,741 [3],[11],[18]       3,054 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,037 3,037                      
Investments at fair value [3],[4],[20]   3,023 3,023                      
Principal amount [3],[4],[11],[20]   3,054 3,054                      
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   42 42                      
Investments at fair value [3],[4]   41 41                      
Principal amount [3],[4],[11]   42 42                      
Investment, Identifier [Axis]: TigerConnect, Inc.| First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (43) (43)                      
Investments at fair value [3],[4],[9]   (43) (43)                      
Principal amount [3],[4],[9],[11]   4,267 4,267                      
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [4],[9] (8) [4],[9]       (8) [7],[8],[10]              
Investments at fair value   0 [4],[9] 0 [4],[9]       0 [7],[8],[10]              
Principal amount   818 [4],[9],[11] 818 [4],[9],[11]       818 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,275 [17],[18] 8,275 [17],[18]       8,310 [7],[14],[15]              
Investments at fair value   8,303 [17],[18] 8,303 [17],[18]       8,345 [7],[14],[15]              
Principal amount   8,303 [11],[17],[18] 8,303 [11],[17],[18]       8,345 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,773 [17],[18] 2,773 [17],[18]       2,784 [7],[14],[15]              
Investments at fair value   2,784 [17],[18] 2,784 [17],[18]       2,798 [7],[14],[15]              
Principal amount   2,784 [11],[17],[18] 2,784 [11],[17],[18]       2,798 [7],[12],[14],[15]              
Investment, Identifier [Axis]: USRP Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   12,253 [3],[17],[18] 12,253 [3],[17],[18]       12,341 [7],[14],[15]              
Investments at fair value   12,299 [3],[17],[18] 12,299 [3],[17],[18]       12,396 [7],[14],[15]              
Principal amount   12,299 [3],[11],[17],[18] 12,299 [3],[11],[17],[18]       12,396 [7],[12],[14],[15]              
Investment, Identifier [Axis]: USRP Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (9) [3],[4],[9] (9) [3],[4],[9]       (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   893 [3],[4],[9],[11] 893 [3],[4],[9],[11]       893 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             9,073              
Investments at fair value [7],[14],[15]             9,070              
Principal amount [7],[12],[14],[15]             9,116              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             (6)              
Principal amount [7],[8],[10],[12]             1,139              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             (15)              
Principal amount [7],[8],[10],[12]             3,039              
Investment, Identifier [Axis]: UniTek Global Services, Inc.                            
Schedule of Investments [Line Items]                            
Investments at fair value   93,084 93,084       73,181     $ 107,524        
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   1,925 1,925                      
Investments at fair value [3],[18],[49]   0 0                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   532 532                      
Investments at fair value [3],[4],[49]   0 0                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             1,925              
Investments at fair value [7],[15],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             532              
Investments at fair value [7],[8],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   71,326 71,326                      
Investments at fair value [3],[4],[49]   74,650 74,650                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   29,318 29,318                      
Investments at fair value [3],[4],[49]   18,434 18,434                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 3                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   26,946 26,946                      
Investments at fair value [3],[18],[49]   0 0                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   7,447 7,447                      
Investments at fair value [3],[4],[49]   0 0                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 5                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   0 0                      
Investments at fair value [3],[4],[49]   0 0                      
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             61,162              
Investments at fair value [7],[8],[47]             64,486              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             29,318              
Investments at fair value [7],[8],[47]             8,695              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 3                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             26,946              
Investments at fair value [7],[15],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 4                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             7,447              
Investments at fair value [7],[8],[47]             0              
Investment, Identifier [Axis]: Vehlo Purchaser, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,991 [3],[4] 5,991 [3],[4]       6,022 [8]              
Investments at fair value   6,027 [3],[4] 6,027 [3],[4]       6,042 [8]              
Principal amount   6,027 [3],[4],[11] 6,027 [3],[4],[11]       6,073 [8],[12]              
Investment, Identifier [Axis]: Viper Bidco, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0 0                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   1,838 1,838                      
Investment, Identifier [Axis]: Viper Bidco, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (17) (17)                      
Investments at fair value [3],[4],[9]   0 0                      
Principal amount [3],[4],[9],[11]   3,320 3,320                      
Investment, Identifier [Axis]: Viper Bidco,Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Principal amount   15,686 15,686                      
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,838              
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (17)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,320              
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   14,931 [3],[4],[20],[52] 14,931 [3],[4],[20],[52]       15,037 [7],[8],[16],[51]              
Investments at fair value   15,686 [3],[4],[20],[52] 15,686 [3],[4],[20],[52]       16,051 [7],[8],[16],[51]              
Principal amount           £ 11,819 16,051   £ 11,910          
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,278 [3],[4],[20] 2,278 [3],[4],[20]       2,294 [7],[8],[16]              
Investments at fair value   2,288 [3],[4],[20] 2,288 [3],[4],[20]       2,306 [7],[8],[16]              
Principal amount   2,288 [3],[4],[11],[20] 2,288 [3],[4],[11],[20]       2,306 [7],[8],[12],[16]              
Investment, Identifier [Axis]: WEG Sub Intermediate Holdings, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   5,101 [3],[4] 5,101 [3],[4]       4,623 [7],[8]              
Investments at fair value   5,140 [3],[4] 5,140 [3],[4]       4,665 [7],[8]              
Principal amount   5,140 [3],[4],[11] 5,140 [3],[4],[11]       4,665 [7],[8],[12]              
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9] (6) [3],[4],[9]       (6) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   2,040 [3],[4],[9],[11] 2,040 [3],[4],[9],[11]       2,040 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Xactly Corporation | First lien                            
Schedule of Investments [Line Items]                            
Cost   22,493 [3],[13] 22,493 [3],[13]       22,489 [7],[19]              
Investments at fair value   21,263 [3],[13] 21,263 [3],[13]       22,232 [7],[19]              
Principal amount   22,500 [3],[11],[13] 22,500 [3],[11],[13]       22,500 [7],[12],[19]              
Investment, Identifier [Axis]: Xactly Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9] (10) [3],[4],[9]       (10) [7],[8],[10]              
Investments at fair value   (55) [3],[4],[9] (55) [3],[4],[9]       (12) [7],[8],[10]              
Principal amount   992 [3],[4],[9],[11] 992 [3],[4],[9],[11]       992 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   619 [3],[4],[9] 619 [3],[4],[9]       392 [7],[8],[10]              
Investments at fair value   623 [3],[4],[9] 623 [3],[4],[9]       394 [7],[8],[10]              
Principal amount   623 [3],[4],[9],[11] 623 [3],[4],[9],[11]       394 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9] 0 [3],[4],[9]       (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   39 [3],[4],[9],[11] 39 [3],[4],[9],[11]       271 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9] (2) [3],[4],[9]       (2) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9] 0 [3],[4],[9]       0 [7],[8],[10]              
Principal amount   309 [3],[4],[9],[11] 309 [3],[4],[9],[11]       309 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,477 [3],[24] 21,477 [3],[24]       21,638 [7],[25]              
Investments at fair value   21,498 [3],[24] 21,498 [3],[24]       21,661 [7],[25]              
Principal amount   21,498 [3],[11],[24] 21,498 [3],[11],[24]       21,661 [7],[12],[25]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,259 [3],[17],[18] 4,259 [3],[17],[18]       4,289 [7],[14],[15]              
Investments at fair value   4,276 [3],[17],[18] 4,276 [3],[17],[18]       4,309 [7],[14],[15]              
Principal amount   4,276 [3],[11],[17],[18] 4,276 [3],[11],[17],[18]       4,309 [7],[12],[14],[15]              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             290              
Investments at fair value [7],[8],[10],[16]             301              
Principal amount [7],[8],[10],[12],[16]             301              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,847              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (11)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,074              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             11,275              
Investments at fair value [7],[14],[15]             11,380              
Principal amount [7],[12],[14],[15]             11,380              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             1,877              
Investments at fair value [7],[8],[16]             1,889              
Principal amount [7],[8],[12],[16]             1,889              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   7,341 7,341                      
Investments at fair value [3],[4],[20]   6,782 6,782                      
Principal amount [3],[4],[11],[20]   7,366 7,366                      
Investment, Identifier [Axis]: iCIMS, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,580 [3],[4],[9] 1,580 [3],[4],[9]       1,160 [7],[8],[10]              
Investments at fair value   1,444 [3],[4],[9] 1,444 [3],[4],[9]       1,134 [7],[8],[10]              
Principal amount   1,588 [3],[4],[9],[11] 1,588 [3],[4],[9],[11]       1,165 [7],[8],[10],[12]              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (17) [3],[4],[9] (17) [3],[4],[9]       (21) [7],[8],[10]              
Investments at fair value   (175) [3],[4],[9] (175) [3],[4],[9]       (64) [7],[8],[10]              
Principal amount   1,941 [3],[4],[9],[11] 1,941 [3],[4],[9],[11]       2,365 [7],[8],[10],[12]              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             44,590              
Investments at fair value [7],[8],[16]             43,538              
Principal amount [7],[8],[12],[16]             44,742              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             7,332              
Investments at fair value [7],[8],[16]             7,253              
Principal amount [7],[8],[12],[16]             7,366              
SLP III                            
Schedule of Investments [Line Items]                            
Cost   160,000 160,000                      
SLP III | SkyKnight II                            
Schedule of Investments [Line Items]                            
Cost   40,000 $ 40,000                      
SLP III                            
Schedule of Investments [Line Items]                            
Investment period     5 years                      
Investment additional period     1 year                      
Cost   920,103 $ 920,103       957,232              
Investments at fair value   872,188 872,188       941,427              
Principal amount   930,815 930,815       971,559              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | ADMI Corp. (aka Aspen Dental)                            
Schedule of Investments [Line Items]                            
Cost   2,306 2,306       2,323              
Investments at fair value   2,188 2,188       2,214              
Principal amount   2,309 2,309       2,327              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Accelya Lux Finco S.a r.l.                            
Schedule of Investments [Line Items]                            
Cost   16,068 16,068       16,162              
Investments at fair value   14,809 14,809       16,435              
Principal amount   16,363 16,363       16,487              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Allium Buyer LLC                            
Schedule of Investments [Line Items]                            
Cost   9,325 9,325                      
Investments at fair value   9,502 9,502                      
Principal amount   9,467 9,467                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | AmSpec Parent, LLC                            
Schedule of Investments [Line Items]                            
Cost   9,407 9,407       9,478              
Investments at fair value   9,457 9,457       9,540              
Principal amount   9,422 9,422       9,493              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Ardonagh Midco 3 Limited                            
Schedule of Investments [Line Items]                            
Cost   1,968 1,968       1,982              
Investments at fair value   1,961 1,961       1,990              
Principal amount   1,975 1,975       1,990              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,390 4,390                      
Investments at fair value   4,097 4,097                      
Principal amount   4,411 4,411                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 1                            
Schedule of Investments [Line Items]                            
Cost             12,931              
Investments at fair value             13,039              
Principal amount             13,000              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 2                            
Schedule of Investments [Line Items]                            
Cost             3,517              
Investments at fair value             3,621              
Principal amount             3,618              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 3                            
Schedule of Investments [Line Items]                            
Cost             1,958              
Investments at fair value             1,988              
Principal amount             1,985              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             11,761              
Investments at fair value             11,718              
Principal amount             11,821              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   10,841 10,841                      
Investments at fair value   10,548 10,548                      
Principal amount   10,889 10,889                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   7,048 7,048                      
Investments at fair value   6,894 6,894                      
Principal amount   7,146 7,146                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BIFM CA Buyer Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,969 8,969       9,032              
Investments at fair value   8,989 8,989       9,123              
Principal amount   8,981 8,981       9,049              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BW Holding, Inc.                            
Schedule of Investments [Line Items]                            
Cost             597              
Investments at fair value             616              
Principal amount             603              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Bach Finance Limited                            
Schedule of Investments [Line Items]                            
Cost             2,103              
Investments at fair value             2,117              
Principal amount             2,107              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Bella Holding Company, LLC                            
Schedule of Investments [Line Items]                            
Cost   7,609 7,609       7,707              
Investments at fair value   7,701 7,701       7,760              
Principal amount   7,683 7,683       7,722              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Berlin Packaging L.L.C.                            
Schedule of Investments [Line Items]                            
Cost   8,668 8,668       8,734              
Investments at fair value   8,616 8,616       8,765              
Principal amount   8,669 8,669       8,735              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Boxer Parent Company Inc.                            
Schedule of Investments [Line Items]                            
Cost             7,400              
Investments at fair value             7,405              
Principal amount             7,416              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | BradyPLUS Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost             7,075              
Investments at fair value             7,118              
Principal amount             7,182              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | CVET Midco 2, L.P.                            
Schedule of Investments [Line Items]                            
Cost   9,388 9,388       9,410              
Investments at fair value   9,375 9,375       8,749              
Principal amount   9,631 9,631       9,706              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Capstone Borrower, Inc.                            
Schedule of Investments [Line Items]                            
Cost             3,109              
Investments at fair value             3,126              
Principal amount             3,124              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cardinal Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,466 11,466       11,513              
Investments at fair value   10,375 10,375       11,384              
Principal amount   11,535 11,535       11,626              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Chrysaor Bidco S.a r.l.                            
Schedule of Investments [Line Items]                            
Cost   2,099 2,099       2,115              
Investments at fair value   2,109 2,109       2,133              
Principal amount   2,099 2,099       2,115              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Citrin Cooperman Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   4,814 4,814       6,711              
Investments at fair value   4,786 4,786       6,747              
Principal amount   4,838 4,838       6,719              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cleanova US Holdings LLC                            
Schedule of Investments [Line Items]                            
Cost   17,219 17,219       18,565              
Investments at fair value   17,378 17,378       18,741              
Principal amount   17,367 17,367       18,741              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cloudera, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,836 13,836       13,904              
Investments at fair value   13,039 13,039       13,511              
Principal amount   13,952 13,952       14,062              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Clydesdale Acquisition Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   9,262 9,262       9,308              
Investments at fair value   9,107 9,107       9,316              
Principal amount   9,266 9,266       9,313              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cohnreznick Advisory LLC                            
Schedule of Investments [Line Items]                            
Cost   7,142 7,142       9,092              
Investments at fair value   7,114 7,114       9,177              
Principal amount   7,162 7,162       9,114              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Confluent Health, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,558 4,558       4,592              
Investments at fair value   4,266 4,266       4,120              
Principal amount   4,567 4,567       4,603              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Confluent Medical Technologies, Inc.                            
Schedule of Investments [Line Items]                            
Cost             6,723              
Investments at fair value             6,799              
Principal amount             6,740              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | ConnectWise, LLC                            
Schedule of Investments [Line Items]                            
Cost   11,415 11,415       11,502              
Investments at fair value   11,240 11,240       11,332              
Principal amount   11,422 11,422       11,512              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Convey Health Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,706 8,706       9,012              
Investments at fair value   978 978       6,661              
Principal amount   9,058 9,058       9,123              
Unearned income   205 623                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | CoreLogic, Inc. (fka First American Corporation, The)                            
Schedule of Investments [Line Items]                            
Cost   8,820 8,820                      
Investments at fair value   8,539 8,539                      
Principal amount   9,000 9,000                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cornerstone OnDemand, Inc.                            
Schedule of Investments [Line Items]                            
Cost   2,509 2,509       2,527              
Investments at fair value   1,594 1,594       2,335              
Principal amount   2,513 2,513       2,533              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Cub Financing Intermediate, LLC                            
Schedule of Investments [Line Items]                            
Cost   916 916                      
Investments at fair value   931 931                      
Principal amount   925 925                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | DG Investment Intermediate Holdings 2, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,892 11,892       10,959              
Investments at fair value   11,958 11,958       11,050              
Principal amount   11,928 11,928       11,008              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Dayforce Bidco, LLC                            
Schedule of Investments [Line Items]                            
Cost   5,373 5,373                      
Investments at fair value   5,337 5,337                      
Principal amount   5,535 5,535                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Dealer Tire Financial, LLC                            
Schedule of Investments [Line Items]                            
Cost   11,307 11,307       11,388              
Investments at fair value   11,259 11,259       11,464              
Principal amount   11,349 11,349       11,435              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Disco Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost             7,233              
Investments at fair value             7,304              
Principal amount             7,250              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Discovery Purchaser Corporation                            
Schedule of Investments [Line Items]                            
Cost   9,909 9,909       13,496              
Investments at fair value   10,102 10,102       13,349              
Principal amount   10,125 10,125       13,856              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | EAB Global, Inc.                            
Schedule of Investments [Line Items]                            
Cost   9,834 9,834       9,881              
Investments at fair value   8,916 8,916       8,990              
Principal amount   10,006 10,006       10,083              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Eagle Parent Corp.                            
Schedule of Investments [Line Items]                            
Cost   13,635 13,635       13,709              
Investments at fair value   13,851 13,851       13,920              
Principal amount   13,758 13,758       13,866              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Eisner Advisory Group LLC                            
Schedule of Investments [Line Items]                            
Cost   11,168 11,168       8,494              
Investments at fair value   11,252 11,252       8,617              
Principal amount   11,257 11,257       8,546              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Embecta Corp.                            
Schedule of Investments [Line Items]                            
Cost   3,760 3,760       4,012              
Investments at fair value   3,184 3,184       4,015              
Principal amount   3,753 3,753       4,002              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | FNZ Group Entities Limited                            
Schedule of Investments [Line Items]                            
Cost   9,940 9,940       9,997              
Investments at fair value   6,530 6,530       8,099              
Principal amount   10,101 10,101       10,178              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Finastra USA, Inc.                            
Schedule of Investments [Line Items]                            
Cost   12,208 12,208       12,259              
Investments at fair value   11,905 11,905       12,135              
Principal amount   12,311 12,311       12,373              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | First Advantage Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost             4,181              
Investments at fair value             4,186              
Principal amount             4,223              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Flash Charm, Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,499 6,499       16,333              
Investments at fair value   5,742 5,742       15,290              
Principal amount   6,501 6,501       16,341              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Forgent Intermediate IV LLC                            
Schedule of Investments [Line Items]                            
Cost             12,621              
Investments at fair value             12,685              
Principal amount             12,749              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Foundational Education Group, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,896 13,896       13,984              
Investments at fair value   13,032 13,032       13,001              
Principal amount   13,953 13,953       14,063              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Groundworks, LLC                            
Schedule of Investments [Line Items]                            
Cost   9,997 9,997       9,871              
Investments at fair value   10,038 10,038       10,163              
Principal amount   10,024 10,024       10,100              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Finance 2 Limited                            
Schedule of Investments [Line Items]                            
Cost   6,279 6,279                      
Investments at fair value   6,225 6,225                      
Principal amount   6,451 6,451                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             11,806              
Investments at fair value             11,849              
Principal amount             11,849              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   11,722 11,722                      
Investments at fair value   11,760 11,760                      
Principal amount   11,760 11,760                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   1,110 1,110                      
Investments at fair value   1,115 1,115                      
Principal amount   1,115 1,115                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | HP PHRG Borrower, LLC                            
Schedule of Investments [Line Items]                            
Cost   16,420 16,420       16,534              
Investments at fair value   16,449 16,449       16,572              
Principal amount   16,516 16,516       16,641              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Heartland Dental, LLC                            
Schedule of Investments [Line Items]                            
Cost   3,713 3,713       13,862              
Investments at fair value   3,715 3,715       13,970              
Principal amount   3,718 3,718       13,896              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Help/Systems Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,041 11,041       11,121              
Investments at fair value   8,379 8,379       10,120              
Principal amount   11,057 11,057       11,140              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Houghton Mifflin Harcourt Company                            
Schedule of Investments [Line Items]                            
Cost   7,792 7,792       7,818              
Investments at fair value   5,398 5,398       7,069              
Principal amount   7,924 7,924       7,986              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Inizio Group Limited                            
Schedule of Investments [Line Items]                            
Cost   12,690 12,690       12,669              
Investments at fair value   12,476 12,476       12,444              
Principal amount   12,747 12,747       12,747              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Jones DesLauriers Insurance Management Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,357 6,357       2,680              
Investments at fair value   6,386 6,386       2,693              
Principal amount   6,461 6,461       2,687              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Kaseya Inc.                            
Schedule of Investments [Line Items]                            
Cost   12,702 12,702       12,797              
Investments at fair value   10,651 10,651       12,847              
Principal amount   12,723 12,723       12,820              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Kestra Advisor Services Holdings A, Inc.                            
Schedule of Investments [Line Items]                            
Cost             3,742              
Investments at fair value             3,760              
Principal amount             3,749              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | KnowBe4, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,118 7,118       13,125              
Investments at fair value   5,047 5,047       13,152              
Principal amount   7,119 7,119       13,128              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | LI Group Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   2,996 2,996       3,031              
Investments at fair value   2,990 2,990       3,055              
Principal amount   2,998 2,998       3,033              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | LSCS Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   14,671 14,671       14,774              
Investments at fair value   14,668 14,668       14,590              
Principal amount   14,751 14,751       14,863              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | LTR Intermediate Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,842 7,842       7,878              
Investments at fair value   7,907 7,907       7,949              
Principal amount   7,878 7,878       7,917              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | MED ParentCo, LP                            
Schedule of Investments [Line Items]                            
Cost   6,494 6,494       9,840              
Investments at fair value   6,508 6,508       9,921              
Principal amount   6,512 6,512       9,880              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Marcel Bidco LLC (Marcel Bidco GmbH)                            
Schedule of Investments [Line Items]                            
Cost   2,019 2,019       2,777              
Investments at fair value   1,986 1,986       2,826              
Principal amount   2,034 2,034       2,809              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Mavis Tire Express Services Topco, Corp.                            
Schedule of Investments [Line Items]                            
Cost   13,868 13,868       12,549              
Investments at fair value   13,823 13,823       12,653              
Principal amount   13,937 13,937       12,593              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC                            
Schedule of Investments [Line Items]                            
Cost             5,533              
Investments at fair value             5,553              
Principal amount             5,534              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   5,492 5,492                      
Investments at fair value   5,499 5,499                      
Principal amount   5,492 5,492                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   2,112 2,112                      
Investments at fair value   2,166 2,166                      
Principal amount   2,163 2,163                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Neon Maple Purchaser Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,721 5,721       3,523              
Investments at fair value   5,570 5,570       3,519              
Principal amount   5,717 5,717       3,510              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Nexus Buyer LLC                            
Schedule of Investments [Line Items]                            
Cost   13,844 13,844       13,941              
Investments at fair value   13,779 13,779       13,927              
Principal amount   13,906 13,906       14,012              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Nielsen Consumer, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,399 5,399       5,388              
Investments at fair value   5,711 5,711       5,787              
Principal amount   5,728 5,728       5,771              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | OCM System One Buyer CTB, LLC (Sentinel Purchaser II Holdco, LLC)                            
Schedule of Investments [Line Items]                            
Cost   7,536 7,536                      
Investments at fair value   7,564 7,564                      
Principal amount   7,574 7,574                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | OSTTRA Group Ltd                            
Schedule of Investments [Line Items]                            
Cost   10,267 10,267                      
Investments at fair value   10,290 10,290                      
Principal amount   10,277 10,277                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | OVG Business Services, LLC                            
Schedule of Investments [Line Items]                            
Cost   2,736 2,736       2,755              
Investments at fair value   2,763 2,763       2,778              
Principal amount   2,748 2,748       2,769              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Oceankey (U.S.) II Corp.                            
Schedule of Investments [Line Items]                            
Cost   13,908 13,908       14,019              
Investments at fair value   13,757 13,757       13,841              
Principal amount   13,904 13,904       14,014              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Orbit Private Holdings I Ltd                            
Schedule of Investments [Line Items]                            
Cost   9,284 9,284       9,051              
Investments at fair value   9,332 9,332       9,134              
Principal amount   9,315 9,315       9,085              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Orion Advisor Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost             1,501              
Investments at fair value             1,511              
Principal amount             1,500              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Orion Midco Ltd                            
Schedule of Investments [Line Items]                            
Cost             8,095              
Investments at fair value             8,150              
Principal amount             8,102              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Osaic Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,547 5,547       12,327              
Investments at fair value   5,504 5,504       12,423              
Principal amount   5,547 5,547       12,357              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Osmose Utilities Services, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,471 13,471       13,430              
Investments at fair value   13,826 13,826       13,742              
Principal amount   13,842 13,842       13,951              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Outcomes Group Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   4,045 4,045       4,074              
Investments at fair value   4,081 4,081       4,119              
Principal amount   4,057 4,057       4,088              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Paradigm Parent, LLC                            
Schedule of Investments [Line Items]                            
Cost   556 556                      
Investments at fair value   584 584                      
Principal amount   625 625                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Pearls (Netherlands) Bidco B.V.                            
Schedule of Investments [Line Items]                            
Cost   1,162 1,162       8,576              
Investments at fair value   1,141 1,141       8,123              
Principal amount   1,202 1,202       8,959              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Perforce Software, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,992 3,992       4,021              
Investments at fair value   2,055 2,055       3,426              
Principal amount   4,004 4,004       4,035              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Physician Partners, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   3,233 3,233       2,303              
Investments at fair value   3,385 3,385       1,974              
Principal amount   3,336 3,336       2,360              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Physician Partners, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   2,828 2,828       2,790              
Investments at fair value   2,746 2,746       1,353              
Principal amount   2,840 2,840       2,805              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Pioneer AcquisitionCo, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,696 4,696       7,904              
Investments at fair value   4,683 4,683       7,968              
Principal amount   4,707 4,707       7,924              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Planview Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,335 13,335       13,397              
Investments at fair value   11,223 11,223       12,995              
Principal amount   13,401 13,401       13,503              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Pretium PKG Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,574 5,574                      
Investments at fair value   5,556 5,556                      
Principal amount   5,600 5,600                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Project Alpha Intermediate Holding, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,229 13,229       13,302              
Investments at fair value   9,473 9,473       13,500              
Principal amount   13,403 13,403       13,505              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Pushpay USA Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,781 13,781       13,884              
Investments at fair value   12,510 12,510       13,911              
Principal amount   13,798 13,798       13,903              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Quartz AcquireCo, LLC                            
Schedule of Investments [Line Items]                            
Cost   2,610 2,610       3,497              
Investments at fair value   2,280 2,280       3,510              
Principal amount   2,619 2,619       3,510              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | RLG Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost   6,862 6,862       6,843              
Investments at fair value   3,211 3,211       4,372              
Principal amount   7,050 7,050       7,106              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | RealPage, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   5,500 5,500       3,043              
Investments at fair value   5,444 5,444       3,048              
Principal amount   5,509 5,509       3,047              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | RealPage, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   7,342 7,342       4,945              
Investments at fair value   7,351 7,351       4,985              
Principal amount   7,422 7,422       4,963              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Rithum Holdings, Inc. (fka CommerceHub, Inc.)                            
Schedule of Investments [Line Items]                            
Cost   15,535 15,535       15,644              
Investments at fair value   14,743 14,743       15,769              
Principal amount   15,626 15,626       15,744              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | RxB Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,002 5,002       5,053              
Investments at fair value   5,098 5,098       5,098              
Principal amount   5,092 5,092       5,156              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | STATS Intermediate Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost   9,602 9,602                      
Investments at fair value   9,863 9,863                      
Principal amount   9,950 9,950                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Secretariat Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   9,686 9,686       8,920              
Investments at fair value   9,422 9,422       8,994              
Principal amount   9,717 9,717       8,957              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Secure Acquisition, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,818 3,818       501              
Investments at fair value   3,831 3,831       505              
Principal amount   3,819 3,819       500              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | SonarSource Financing, LLC                            
Schedule of Investments [Line Items]                            
Cost   10,909 10,909       11,313              
Investments at fair value   10,778 10,778       11,370              
Principal amount   11,054 11,054       11,485              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Sovos Compliance, LLC (fka Taxware, LLC)                            
Schedule of Investments [Line Items]                            
Cost   10,945 10,945       8,775              
Investments at fair value   10,746 10,746       8,803              
Principal amount   11,036 11,036       8,767              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Spring Education Group, Inc.                            
Schedule of Investments [Line Items]                            
Cost   12,966 12,966       13,051              
Investments at fair value   13,074 13,074       13,254              
Principal amount   13,062 13,062       13,163              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Storable, Inc.                            
Schedule of Investments [Line Items]                            
Cost   9,811 9,811       4,606              
Investments at fair value   8,562 8,562       4,635              
Principal amount   9,882 9,882       4,607              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Summit Acquisition Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,397 6,397       5,944              
Investments at fair value   6,443 6,443       6,022              
Principal amount   6,421 6,421       5,970              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Sword Purchaser, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,237 4,237                      
Investments at fair value   4,457 4,457                      
Principal amount   4,460 4,460                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Symplr Software, Inc.                            
Schedule of Investments [Line Items]                            
Cost   15,091 15,091       15,193              
Investments at fair value   12,676 12,676       12,984              
Principal amount   15,120 15,120       15,240              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | TRC Companies LLC                            
Schedule of Investments [Line Items]                            
Cost             9,352              
Investments at fair value             9,418              
Principal amount             9,377              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Team.blue Finco SARL                            
Schedule of Investments [Line Items]                            
Cost   5,991 5,991       8,595              
Investments at fair value   5,873 5,873       8,642              
Principal amount   5,985 5,985       8,586              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Tegra118 Wealth Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,641 11,641                      
Investments at fair value   11,797 11,797                      
Principal amount   11,727 11,727                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Tempo Acquisition, LLC                            
Schedule of Investments [Line Items]                            
Cost   3,420 3,420                      
Investments at fair value   3,209 3,209                      
Principal amount   4,032 4,032                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Therapy Brands Holdings LLC                            
Schedule of Investments [Line Items]                            
Cost   3,938 3,938       3,966              
Investments at fair value   3,943 3,943       3,679              
Principal amount   3,943 3,943       3,975              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Thermostat Purchaser III, Inc.                            
Schedule of Investments [Line Items]                            
Cost   13,398 13,398       13,501              
Investments at fair value   13,214 13,214       13,483              
Principal amount   13,402 13,402       13,506              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | TransDigm Inc. 1                            
Schedule of Investments [Line Items]                            
Cost             3,519              
Investments at fair value             3,529              
Principal amount             3,510              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | TransDigm Inc. 2                            
Schedule of Investments [Line Items]                            
Cost             2,111              
Investments at fair value             2,116              
Principal amount             2,106              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Tricorbraun Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,001 11,001       11,083              
Investments at fair value   10,582 10,582       10,798              
Principal amount   11,035 11,035       11,122              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | TruGreen Limited Partnership                            
Schedule of Investments [Line Items]                            
Cost   5,087 5,087                      
Investments at fair value   5,192 5,192                      
Principal amount   5,316 5,316                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | UKG Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,183 5,183                      
Investments at fair value   5,121 5,121                      
Principal amount   5,269 5,269                      
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | US Fertility Enterprises, LLC                            
Schedule of Investments [Line Items]                            
Cost   7,420 7,420       6,841              
Investments at fair value   7,480 7,480       6,910              
Principal amount   7,454 7,454       6,875              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | VSTG Intermediate Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,095 11,095       11,180              
Investments at fair value   10,928 10,928       11,189              
Principal amount   11,102 11,102       11,189              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | VT Topco, Inc.                            
Schedule of Investments [Line Items]                            
Cost             10,520              
Investments at fair value             10,541              
Principal amount             10,672              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Valcour Packaging, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   11,267 11,267       2,238              
Investments at fair value   11,297 11,297       2,282              
Principal amount   11,195 11,195       2,256              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Valcour Packaging, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   3,212 3,212       3,178              
Investments at fair value   2,559 2,559       2,480              
Principal amount   3,212 3,212       3,178              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Viant Medical Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   11,349 11,349       11,434              
Investments at fair value   11,184 11,184       11,358              
Principal amount   11,367 11,367       11,454              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Xplor T1, LLC                            
Schedule of Investments [Line Items]                            
Cost   16,863 16,863       19,706              
Investments at fair value   16,382 16,382       19,840              
Principal amount   16,933 16,933       19,791              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Zelis Cost Management Buyer, Inc.                            
Schedule of Investments [Line Items]                            
Cost   19,318 19,318       19,463              
Investments at fair value   19,249 19,249       19,342              
Principal amount   19,316 19,316       19,463              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | Zest Acquisition Corp.                            
Schedule of Investments [Line Items]                            
Cost   5,791 5,791       5,160              
Investments at fair value   5,791 5,791       5,236              
Principal amount   5,879 5,879       5,236              
SLP III | Investment, Identifier [Axis]: Funded Investments - First lien | athenahealth Group Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,078 3,078       12,005              
Investments at fair value   3,078 3,078       12,155              
Principal amount   3,078 3,078       12,117              
SLP III | Investment, Identifier [Axis]: Largest Portfolio Company Investment                            
Schedule of Investments [Line Items]                            
Principal amount   19,316 19,316       19,791              
SLP III | Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments                            
Schedule of Investments [Line Items]                            
Principal amount   88,167 88,167       93,239              
SLP III | Investment, Identifier [Axis]: Unfunded Investments - First lien | Citrin Cooperman Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   (10) (10)       (23)              
Investments at fair value   (15) (15)       9              
Principal amount   1,022 1,022       2,273              
SLP III | Investment, Identifier [Axis]: Unfunded Investments - First lien | Cohnreznick Advisory LLC                            
Schedule of Investments [Line Items]                            
Cost             (3)              
Investments at fair value             9              
Principal amount             1,344              
SLP III | Investment, Identifier [Axis]: Unfunded Investments - First lien | HIG Operations Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             0              
Investments at fair value             0              
Principal amount             1,121              
SLP III | Investment, Identifier [Axis]: Unfunded Investments - First lien | Secretariat Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   1 1       0              
Investments at fair value   (36) (36)       5              
Principal amount   1,188 1,188       1,087              
SLP III | Investment, Identifier [Axis]: Unfunded Investments - First lien | US Fertility Enterprises, LLC                            
Schedule of Investments [Line Items]                            
Cost   (2) (2)       0              
Investments at fair value   1 1       5              
Principal amount   383 383       1,042              
SLP III | Unfunded Investments                            
Schedule of Investments [Line Items]                            
Cost   (11) (11)       (26)              
Investments at fair value   (50) (50)       28              
Principal amount   2,593 2,593       6,867              
SLP III | Revolving Credit Facility                            
Schedule of Investments [Line Items]                            
Credit facility   758,200 758,200       $ 672,700              
SLP III | Revolving Credit Facility | Line of Credit                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity   $ 941,000 $ 941,000 $ 600,000                    
SLP III | Revolving Credit Facility | Line of Credit | During Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate       1.65%                    
SLP III | Revolving Credit Facility | Line of Credit | After Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate       1.95%                    
SLP III | Revolving Credit Facility | Line Of Credit, Class A Advance                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity $ 830,000                          
SLP III | Revolving Credit Facility | Line Of Credit, Class A Advance | During Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 1.50%                          
SLP III | Revolving Credit Facility | Line Of Credit, Class A Advance | After Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 1.80%                          
SLP III | Revolving Credit Facility | Line Of Credit, Class B Advance                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity $ 111,000                          
SLP III | Revolving Credit Facility | Line Of Credit, Class B Advance | During Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 4.75%                          
SLP III | Revolving Credit Facility | Line Of Credit, Class B Advance | After Reinvestment Period                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 5.05%                          
[1] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[2] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[3] 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
[4] Investment is held by New Mountain Finance Corporation.
[5] 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.
[6] 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.
[7] 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.
[8] Investment is held by New Mountain Finance Corporation
[9] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolvers 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
[10] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolvers 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.
[11] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€")
[12] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[13] Investment is held by New Mountain Finance SBIC, L.P.
[14] 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.
[15] Investment is held by New Mountain Finance Holdings, L.L.C.
[16] 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.
[17] 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
[18] Investment is held by New Mountain Finance Holdings, L.L.C.
[19] Investment is held by New Mountain Finance SBIC, L.P.
[20] 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 Book Runner and Joint Lead Arrangers along with Deutsche Bank Securities Inc., State Street Bank and Trust Company and Wells Fargo Securities, LLC, and the lenders party thereto. See Note 7. Borrowings, for details.
[21] 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 Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $20,249.
[22] 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, 2025, 15.4% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[23] 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 September 30, 2026, 19.9% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[24] Investment is held by New Mountain Finance SBIC II, L.P.
[25] Investment is held by New Mountain Finance SBIC II, L.P.
[26] The Company's preferred equity investment in Dealer Tire Holdings, LLC is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $27,116.
[27] The Company's preferred equity investment in Dealer Tire Holdings, LLC is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of December 31, 2025, the Company's stated value of its share, plus unpaid compounded dividends, was $90,671.
[28] 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. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $15,827.
[29] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of September 30, 2026 and December 31, 2025, along with transactions during the nine months ended September 30, 2026 in which the issuer was a non-controlled/affiliated investment, is as follows:
Portfolio CompanyFair Value at December 31, 2025Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2026Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$18,337 $— $— $4,311 $22,648 $— $944 $1,423 $— 
Sierra Hamilton Holdings Corporation2,000 — — (111)1,889 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC40,365 4,804 — (14)45,155 — 3,789 1,019 188 
Total Non-Controlled/Affiliated Investments$60,702 $4,804 $— $4,186 $69,692 $— $4,733 $2,442 $188 
(A)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.
(B)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.
[30] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of December 31, 2025 and December 31, 2024 along with transactions during the year ended December 31, 2025 in which the issuer was a non-controlled/affiliated investment is as follows:
Portfolio CompanyFair Value at December 31, 2024Gross
Additions (A)		Gross
Redemptions
(B)		Net Change In Unrealized Appreciation (Depreciation)Fair Value at December 31, 2025Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$19,156 $— $— $(819)$18,337 $— $1,321 $— $— 
Sierra Hamilton Holdings Corporation2,000 — — — 2,000 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC91,620 6,967 — (58,222)40,365 — 4,357 2,594 250 
Total Non-Controlled/Affiliated Investments$112,776 $6,967 $— $(59,041)$60,702 $— $5,678 $2,594 $250 
(A)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.
(B)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.
[31] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan and a first lien revolver in Eclipse Buyer, Inc., a wholly-owned subsidiary of Eclipse Topco, Inc. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $1,632.
[32] 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. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $2,226.
[33] The Company holds Series C-2 preferred units and Class B-1 and Class B-2 of common equity in TVG-Edmentum Holdings, LLC and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC. As of September 30, 2026, the Company's stated value of its Series C-2 preferred shares, Class B-1 and Class B-2 common equity investments, plus unpaid compounded dividends, was $9,737, $48,080 and $29,707, respectively.
[34] The Company holds ordinary shares and Class B-1 and B-2 of preferred equity in TVG-Edmentum Holdings, LLC, and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC. As of December 31, 2025, the Company's stated value of the Company's Class B-1 and Class B-2 preferred equity investments, plus unpaid compounded dividends, was $48,080 and $29,707, respectively.
[35] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and five first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[36] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and five first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[37] The Company holds an LP Interest in Firebird Co-Invest L.P. and a first lien term loan, a first lien delayed draw and a first lien revolver in Firebird Acquisition Corp, Inc., a wholly-owned subsidiary of Firebird Co-Invest L.P.
[38] The Company holds an LP Interest in Firebird Co-Invest L.P. and holds a first lien term loan, a first lien delayed and a first lien revolver in Firebird Acquisition Corp, Inc., a wholly-owned subsidiary of Firebird Co-Invest L.P.
[39] The Company's common equity investment in HBWM Holdings, LLC is entitled to receive a cumulative return that is calculated using the unreturned original investment plus any unpaid compounded dividends. As of September 30, 2026, the Company's unreturned original investment, plus any unpaid compounded dividends, was $4,827.
[40] Investment is held by NMF HB, Inc.
[41] The Company's common equity investment in HBWM Holdings, LLC. is entitled to receive cumulative return that are calculated using the unreturned original investment plus any unpaid capitalized dividends. As of December 31, 2025, the Company's unreturned original investment, plus any unpaid compounded dividends, was $4,776.
[42] Investment is held by NMF HB, Inc.
[43] The Company holds Class A-1 common units in Jawbreaker Topco, L.P., and two first lien term loans, a first lien delayed draw term loan and a first lien revolver in Jawbreaker Parent, Inc., a wholly-owned subsidiary of Jawbreaker Topco, L.P.
[44] The Company's preferred equity investment in Knockout Intermediate Holdings I Inc. is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $14,279.
[45] The Company's preferred equity investment in Knockout Intermediate Holdings I, Inc. is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of December 31, 2025, the Company's stated value of its share, plus unpaid compounded dividends, was $13,323.
[46] 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%.
[47] Denotes investments in which the Company “Controls”, as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of December 31, 2025 and December 31, 2024 along with transactions during the year ended December 31, 2025 in which the issuer was a controlled investment, is as follows:
Portfolio CompanyFair Value at December 31, 2024Gross
Additions
(A)		Gross
Redemptions
(B)		Net Change In
Unrealized
Appreciation
(Depreciation)		Fair Value at December 31, 2025Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
National HME, Inc./NHME Holdings Corp.$3,000 $— $— $(3,000)$— $— $— $— $— 
New Benevis Topco, LLC / New Benevis Holdco, Inc.140,102 21,456 — (7,094)154,464 — 14,309 — 1,383 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,076 7,657 — (6,900)63,833 — 5,759 — 500 
NM NL Holdings, L.P.104,512 — — 1,584 106,096 — — 8,740 — 
NM GP Holdco, LLC322 — — 68 390 — — 44 — 
NM YI LLC9,960 — — (1,319)8,641 — — 886 — 
NMFC Senior Loan Program III LLC160,000 — — — 160,000 — — 22,600 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 15,315 — 
UniTek Global Services, Inc.107,524 72,385 (60,582)(46,146)73,181 38,898 516 10,851 1,070 
Total Controlled Investments$700,896 $101,498 $(60,582)$(62,807)$679,005 $38,898 $20,584 $58,436 $2,953 

(A)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.
(B)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.
[48] Investment is held by New Mountain Net Lease Corporation.
[49] Denotes investments in which the Company "controls", as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of September 30, 2026 and December 31, 2025, along with transactions during the nine months ended September 30, 2026 in which the issuer was a controlled investment, is as follows:
Portfolio CompanyFair Value at December 31, 2025Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2026Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
National HME, Inc./NHME Holdings Corp.$— $— $(12,872)$12,872 $— $(12,872)$— $— $— 
New Benevis Topco, LLC / New Benevis Holdco, Inc.154,464 8,931 (76,831)5,185 91,749 (5,718)6,855 — — 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,833 4,561 — (1,000)67,394 — 4,563 — 375 
NM NL Holdings, L.P.106,096 5,926 (6,972)6,909 111,959 (3)— 6,601 185 
NM GP Holdco, LLC390 75 (64)5 406 — — 33 — 
NM YI, LLC8,641 — — 143 8,784 — — 697 — 
NMFC Senior Loan Program III LLC160,000 — — (4,800)155,200 — — 14,260 — 
NMFC Senior Loan Program IV LLC112,400 — — (10,116)102,284 — — 9,695 — 
UniTek Global Services, Inc.73,181 10,164 — 9,739 93,084 — — 10,164 750 
Total Controlled Investments$679,005 $29,657 $(96,739)$18,937 $630,860 $(18,593)$11,418 $41,450 $1,310 
(A)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.
(B)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.
[50] Investment is held by New Mountain Net Lease Corporation.
[51] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2025, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $16,051 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan, undrawn revolver and drawn revolver is $19,212, $7,529, $1,282 and $123, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[52] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of September 30, 2026, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loan is $15,686 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan and undrawn revolver are $18,398, $7,264 and $1,355, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[53] The Company holds common stock in Notorious Buyer, LLC, and a first lien term loan, a subordinated loan, and a first lien revolver in Notorious Topco, LLC and Notorious Holdings, LLC, two wholly-owned subsidiaries of Notorious Buyer, LLC.
[54] The Company holds common units in Notorious Buyer, LLC, and a first lien term loan, a subordinated loan, and a first lien revolver in Notorious Topco, LLC and Notorious Holdings, LLC, two wholly-owned subsidiaries of Notorious Buyer, LLC.
[55] The Company holds one claim related to a collateralized agreement to resell on its Consolidated Statements of Assets and Liabilities with a cost basis of $30,000 and a fair value of $5,700 as of September 30, 2026. See Note 2. Summary of Significant Accounting Policies, for details.
[56] Investment is on non-accrual status as of December 31, 2025. See Note 3. Investments, for details.
[57] 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, 2025. See Note 2. Summary of Significant Accounting Policies, for details.
[58] Investment is held by NMF Permian Holdings, LLC.
[59] Investment is held by NMF Permian Holdings, LLC.
[60] Investment is held by NMF Pioneer, Inc.
[61] Investment is held by NMF Pioneer, Inc.
[62] The Company holds Class A-1 Common Units in Ambrosia Holdco Corp. and two first lien term loans, two subordinated loans and a first lien delayed draw in TMK Hawk Parent, Corp. TMK Hawk Parent, Corp. is a wholly-owned subsidiary of Ambrosia Intermediate Holdco Corp., which is a wholly-owned subsidiary of Ambrosia Holdco Corp
[63] The Company holds Class A-1 Common Units in Ambrosia Topco LLC and two first lien term loans, a subordinated loan and a first lien delayed draw in TMK Hawk Parent, Corp., a wholly-owned subsidiary of Ambrosia Topco LLC.