v3.26.1
INVESTMENTS - Sierra Senior Loan Strategy JV I LLC (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Feb. 25, 2022
member
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
May 27, 2026
USD ($)
Dec. 31, 2025
USD ($)
Nov. 25, 2025
USD ($)
Dec. 31, 2024
USD ($)
Aug. 12, 2022
USD ($)
Jul. 08, 2021
USD ($)
Feb. 08, 2021
USD ($)
May 13, 2020
USD ($)
Schedule of Investments [Line Items]                          
Number of members | member 2                        
Total dividend income   $ 14,021 $ 14,593 $ 25,926 $ 25,335                
Fair Value   2,458,590   2,458,590     $ 2,398,524            
Cost   2,500,365   2,500,365     2,424,280            
Investment, Identifier [Axis]: A.T. Holdings II LTD | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,459 [1],[2],[3]   7,459 [1],[2],[3]     7,546 [4],[5],[6]            
Cost   11,875 [1],[2],[3]   11,875 [1],[2],[3]     11,875 [4],[5],[6]            
Investment, Identifier [Axis]: AD Bidco, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             13,120            
Cost [6],[7],[8],[9]             12,866            
Investment, Identifier [Axis]: AD Bidco, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             0            
Cost [6],[7],[8],[9]             (23)            
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc. | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value [6],[10]             785            
Cost [6],[10]             349            
Investment, Identifier [Axis]: AMMC CLO 22, Limited Series 2018-22A | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[10],[11]             0            
Cost [5],[6],[10],[11]             381            
Investment, Identifier [Axis]: AMP Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   5,706   5,706                  
Cost [3],[12],[13]   5,704   5,704                  
Investment, Identifier [Axis]: AMP Purchaser, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (4)   (4)                  
Cost [3],[12],[13],[14]   (4)   (4)                  
Investment, Identifier [Axis]: APC1 Holding | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,614 [2],[3],[13],[15]   2,614 [2],[3],[13],[15]     2,701 [5],[6],[9],[16]            
Cost   2,343 [2],[3],[13],[15]   2,343 [2],[3],[13],[15]     2,336 [5],[6],[9],[16]            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             2,974            
Cost [6],[7],[8],[9]             2,974            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   4,691   4,691                  
Cost [3],[12],[13],[14]   4,700   4,700                  
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[17]   608   608                  
Cost [3],[13],[17]   607   607                  
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   129 [3],[18]   129 [3],[18]     122 [6],[10]            
Cost   128 [3],[18]   128 [3],[18]     122 [6],[10]            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (16) [3],[12],[13],[14]   (16) [3],[12],[13],[14]     (7) [6],[7],[8],[9]            
Cost   (13) [3],[12],[13],[14]   (13) [3],[12],[13],[14]     (7) [6],[7],[8],[9]            
Investment, Identifier [Axis]: ASC Communications, LLC | Class A Units                          
Schedule of Investments [Line Items]                          
Fair Value   971 [3]   971 [3]     880 [6]            
Cost   539 [3]   539 [3]     539 [6]            
Investment, Identifier [Axis]: ASC Communications, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,691 [3],[13],[17]   4,691 [3],[13],[17]     5,171 [6],[9],[19]            
Cost   4,698 [3],[13],[17]   4,698 [3],[13],[17]     5,176 [6],[9],[19]            
Investment, Identifier [Axis]: ASC Communications, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (6) [3],[13],[14],[17]   (6) [3],[13],[14],[17]     (7) [6],[7],[9],[19]            
Cost   (4) [3],[13],[14],[17]   (4) [3],[13],[14],[17]     (5) [6],[7],[9],[19]            
Investment, Identifier [Axis]: ATL II MRO Holdings Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   18,829 [3],[12],[13]   18,829 [3],[12],[13]     18,939 [6],[8],[9]            
Cost   18,807 [3],[12],[13]   18,807 [3],[12],[13]     18,868 [6],[8],[9]            
Investment, Identifier [Axis]: ATL II MRO Holdings Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (33) [3],[12],[13],[14]   (33) [3],[12],[13],[14]     (31) [6],[7],[8],[9]            
Cost   (31) [3],[12],[13],[14]   (31) [3],[12],[13],[14]     (37) [6],[7],[8],[9]            
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[17]   8,464   8,464                  
Cost [3],[13],[17]   8,466   8,466                  
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   384   384                  
Cost [3],[13],[14],[17]   384   384                  
Investment, Identifier [Axis]: Accelerant Holdings | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2,946 [18]   2,946 [18]     4,110 [10]            
Cost   3,341 [18]   3,341 [18]     3,341 [10]            
Investment, Identifier [Axis]: Accelevation LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,065 [3],[13],[14],[17]   6,065 [3],[13],[14],[17]     1,221 [6],[7],[9],[19]            
Cost   6,073 [3],[13],[14],[17]   6,073 [3],[13],[14],[17]     1,201 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Accelevation LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (15) [3],[13],[14],[17]   (15) [3],[13],[14],[17]     159 [6],[7],[9],[19]            
Cost   (10) [3],[13],[14],[17]   (10) [3],[13],[14],[17]     147 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Acclime Holdings HK Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[8],[9]             7,266            
Cost [5],[6],[8],[9]             7,169            
Investment, Identifier [Axis]: Acclime Holdings HK Limited | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   269 [2],[3]   269 [2],[3]     234 [5],[6]            
Cost   265 [2],[3]   265 [2],[3]     230 [5],[6]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   381 [3],[18]   381 [3],[18]     149 [6],[10]            
Cost   438 [3],[18]   438 [3],[18]     438 [6],[10]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,967 [3],[12],[13]   12,967 [3],[12],[13]     12,951 [6],[8],[9]            
Cost   12,925 [3],[12],[13]   12,925 [3],[12],[13]     12,969 [6],[8],[9]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   16 [3],[18]   16 [3],[18]     6 [6],[10]            
Cost   18 [3],[18]   18 [3],[18]     18 [6],[10]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   1,494 [3],[12],[13],[14]   1,494 [3],[12],[13],[14]     270 [6],[7],[8],[9]            
Cost   1,488 [3],[12],[13],[14]   1,488 [3],[12],[13],[14]     275 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Acogroup | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,566 [2],[3],[13],[15],[20]   1,566 [2],[3],[13],[15],[20]     3,349 [5],[6],[9],[16],[21]            
Cost   8,051 [2],[3],[13],[15],[20]   8,051 [2],[3],[13],[15],[20]     8,051 [5],[6],[9],[16],[21]            
Investment, Identifier [Axis]: Adhefin International | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,280 [2],[3],[13],[15]   2,280 [2],[3],[13],[15]     2,311 [5],[6],[7],[9],[16]            
Cost   2,194 [2],[3],[13],[15]   2,194 [2],[3],[13],[15]     2,202 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A1 Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   238 [3],[18]   238 [3],[18]     379 [6],[10]            
Cost   280 [3],[18]   280 [3],[18]     280 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A2 Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   61 [3],[18]   61 [3],[18]     98 [6],[10]            
Cost   72 [3],[18]   72 [3],[18]     72 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B1 Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   9 [3],[18]   9 [3],[18]     9 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B2 Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   2 [3],[18]   2 [3],[18]     2 [6],[10]            
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   590 [2],[3],[18]   590 [2],[3],[18]     610 [5],[6],[10]            
Cost   12 [2],[3],[18]   12 [2],[3],[18]     12 [5],[6],[10]            
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,493 [2],[3],[13],[22]   5,493 [2],[3],[13],[22]     5,310 [5],[6]            
Cost   6,172 [2],[3],[13],[22]   6,172 [2],[3],[13],[22]     5,984 [5],[6]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   4,188 [3],[12],[13],[14]   4,188 [3],[12],[13],[14]     3,222 [6],[8],[9]            
Cost   4,183 [3],[12],[13],[14]   4,183 [3],[12],[13],[14]     3,234 [6],[8],[9]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   3,264 [3],[12],[13]   3,264 [3],[12],[13]     3,249 [6],[7],[8],[9]            
Cost   3,212 [3],[12],[13]   3,212 [3],[12],[13]     3,187 [6],[7],[8],[9]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   155 [3],[12],[13],[14]   155 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   144 [3],[12],[13],[14]   144 [3],[12],[13],[14]     (12) [6],[7],[8],[9]            
Investment, Identifier [Axis]: AlliA Insurance Brokers NV | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,229 [2],[3],[13],[15]   5,229 [2],[3],[13],[15]     5,510 [5],[6],[9],[23]            
Cost   4,949 [2],[3],[13],[15]   4,949 [2],[3],[13],[15]     4,938 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Amalfi Midco | Class B Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2,625 [2],[3],[18]   2,625 [2],[3],[18]     2,661 [5],[6],[10]            
Cost   1,115 [2],[3],[18]   1,115 [2],[3],[18]     1,115 [5],[6],[10]            
Investment, Identifier [Axis]: Amalfi Midco | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   384 [2],[3]   384 [2],[3]     361 [5],[6]            
Cost   378 [2],[3]   378 [2],[3]     350 [5],[6]            
Investment, Identifier [Axis]: Amalfi Midco | Subordinated Loan Notes                          
Schedule of Investments [Line Items]                          
Fair Value   3,924 [2],[3]   3,924 [2],[3]     6,575 [5],[6]            
Cost   3,718 [2],[3]   3,718 [2],[3]     5,991 [5],[6]            
Investment, Identifier [Axis]: Amalfi Midco | Warrants                          
Schedule of Investments [Line Items]                          
Fair Value   1,247 [2],[3],[18]   1,247 [2],[3],[18]     1,167 [5],[6],[10]            
Cost   4 [2],[3],[18]   4 [2],[3],[18]     4 [5],[6],[10]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   103 [3],[18]   103 [3],[18]     108 [6],[10]            
Cost   88 [3],[18]   88 [3],[18]     88 [6],[10]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,773 [3],[13],[17]   4,773 [3],[13],[17]     4,875 [6],[9],[19]            
Cost   4,766 [3],[13],[17]   4,766 [3],[13],[17]     4,872 [6],[9],[19]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (5) [3],[13],[14],[17]   (5) [3],[13],[14],[17]     (6) [6],[7],[9],[19]            
Cost   (6) [3],[13],[14],[17]   (6) [3],[13],[14],[17]     (7) [6],[7],[9],[19]            
Investment, Identifier [Axis]: AnalytiChem Holding GmbH | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   6,035 [2],[3],[13],[24]   6,035 [2],[3],[13],[24]     6,225 [5],[6],[9],[16]            
Cost   5,767 [2],[3],[13],[24]   5,767 [2],[3],[13],[24]     5,754 [5],[6],[9],[16]            
Investment, Identifier [Axis]: AnalytiChem Holding GmbH | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,007 [2],[3],[13],[25]   1,007 [2],[3],[13],[25]     1,012 [5],[6],[8],[9]            
Cost   1,019 [2],[3],[13],[25]   1,019 [2],[3],[13],[25]     1,019 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Apex Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,381 [2],[3],[13],[22]   3,381 [2],[3],[13],[22]     3,403 [5],[6],[9],[26]            
Cost   3,240 [2],[3],[13],[22]   3,240 [2],[3],[13],[22]     3,228 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Apex Bidco Limited | Subordinated Senior Unsecured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   406 [2],[3]   406 [2],[3]     371 [5],[6]            
Cost   399 [2],[3]   399 [2],[3]     374 [5],[6]            
Investment, Identifier [Axis]: Apidos CLO XXIV, Series 2016-24A | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[11]             2,755            
Cost [5],[11]             3,464            
Investment, Identifier [Axis]: Application Boot Camp LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   300 [3]   300 [3]     279 [6]            
Cost   235 [3]   235 [3]     235 [6]            
Investment, Identifier [Axis]: Application Boot Camp LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,217 [3],[12],[13]   1,217 [3],[12],[13]     1,201 [6],[8],[9]            
Cost   1,200 [3],[12],[13]   1,200 [3],[12],[13]     1,199 [6],[8],[9]            
Investment, Identifier [Axis]: Application Boot Camp LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (6) [6],[7],[8],[9]            
Cost   (4) [3],[12],[13],[14]   (4) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Application Boot Camp LLC | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   83 [3]   83 [3]     82 [6]            
Cost   82 [3]   82 [3]     82 [6]            
Investment, Identifier [Axis]: Aptus 1829. GmbH | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   12 [2],[3],[18]   12 [2],[3],[18]     12 [5],[6],[10]            
Investment, Identifier [Axis]: Aptus 1829. GmbH | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   58 [2],[3],[18]   58 [2],[3],[18]     68 [5],[6],[10]            
Cost   120 [2],[3],[18]   120 [2],[3],[18]     120 [5],[6],[10]            
Investment, Identifier [Axis]: Apus Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[27]             3,875            
Cost [5],[6],[9],[27]             3,928            
Investment, Identifier [Axis]: Arc Education | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   967 [2],[3],[13],[14],[24]   967 [2],[3],[13],[14],[24]     962 [5],[6],[7],[9],[23]            
Cost   925 [2],[3],[13],[14],[24]   925 [2],[3],[13],[14],[24]     892 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Arch Global Precision LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,264 [3],[12],[13]   8,264 [3],[12],[13]     8,376 [6],[8],[9]            
Cost   8,848 [3],[12],[13]   8,848 [3],[12],[13]     8,873 [6],[8],[9]            
Investment, Identifier [Axis]: Archimede | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,771 [2],[3],[13],[15]   5,771 [2],[3],[13],[15]     6,354 [5],[6],[9],[16]            
Cost   6,195 [2],[3],[13],[15]   6,195 [2],[3],[13],[15]     6,524 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Argus Bidco Limited | Class B Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[18]   3   3                  
Cost [2],[3],[18]   3   3                  
Investment, Identifier [Axis]: Argus Bidco Limited | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   1 [2],[3],[18]   1 [2],[3],[18]     1 [5],[6],[10]            
Investment, Identifier [Axis]: Argus Bidco Limited | Equity Loan Notes                          
Schedule of Investments [Line Items]                          
Fair Value   18 [2],[3]   18 [2],[3]     27 [5],[6]            
Cost   70 [2],[3]   70 [2],[3]     70 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,376 [2],[3],[13],[28]   1,376 [2],[3],[13],[28]     1,752 [5],[6],[9],[27]            
Cost   1,352 [2],[3],[13],[28]   1,352 [2],[3],[13],[28]     1,666 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,957 [2],[3],[13],[24]   1,957 [2],[3],[13],[24]     2,042 [5],[6],[9],[23]            
Cost   1,945 [2],[3],[13],[24]   1,945 [2],[3],[13],[24]     1,944 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 3                          
Schedule of Investments [Line Items]                          
Fair Value   125 [2],[3],[13],[25]   125 [2],[3],[13],[25]     127 [5],[6],[9],[29]            
Cost   136 [2],[3],[13],[25]   136 [2],[3],[13],[25]     136 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Argus Bidco Limited | Ordinary Shares                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[18]   0   0                  
Cost [2],[3],[18]   0   0                  
Investment, Identifier [Axis]: Argus Bidco Limited | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   18 [2],[3]   18 [2],[3]     28 [5],[6]            
Cost   70 [2],[3]   70 [2],[3]     70 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   683 [2],[3]   683 [2],[3]     974 [5],[6]            
Cost   678 [2],[3]   678 [2],[3]     934 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | Subordinated Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3]   15   15                  
Cost [2],[3]   15   15                  
Investment, Identifier [Axis]: Argus Intermediate, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,807 [3],[12],[13],[14]   3,807 [3],[12],[13],[14]     3,732 [6],[7],[8],[9]            
Cost   3,730 [3],[12],[13],[14]   3,730 [3],[12],[13],[14]     3,733 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Argus Intermediate, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   627 [3],[12],[13],[14]   627 [3],[12],[13],[14]     616 [6],[7],[8],[9]            
Cost   616 [3],[12],[13],[14]   616 [3],[12],[13],[14]     616 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[29]             6,407            
Cost [6],[9],[29]             6,485            
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC) | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[9],[29]             (3)            
Cost [6],[7],[9],[29]             3            
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   7,107   7,107                  
Cost [3],[12],[13],[14]   7,107   7,107                  
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   448   448                  
Cost [3],[12],[13],[14]   448   448                  
Investment, Identifier [Axis]: Artemis Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   623 [2],[3],[13],[14],[15]   623 [2],[3],[13],[14],[15]     618 [5],[6],[7],[9],[16]            
Cost   593 [2],[3],[13],[14],[15]   593 [2],[3],[13],[14],[15]     564 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   437 [2],[3],[13],[15]   437 [2],[3],[13],[15]     449 [5],[6],[9],[16]            
Cost   408 [2],[3],[13],[15]   408 [2],[3],[13],[15]     408 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   2,569 [2],[3],[13],[28]   2,569 [2],[3],[13],[28]     2,604 [5],[6],[9],[27]            
Cost   2,534 [2],[3],[13],[28]   2,534 [2],[3],[13],[28]     2,528 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Auxi International | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,559 [2],[3],[13],[15]   1,559 [2],[3],[13],[15]     1,562 [5],[6],[9],[16]            
Cost   1,549 [2],[3],[13],[15]   1,549 [2],[3],[13],[15]     1,545 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Auxi International | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   866 [2],[3],[13],[22]   866 [2],[3],[13],[22]     856 [5],[6],[9],[26]            
Cost   916 [2],[3],[13],[22]   916 [2],[3],[13],[22]     913 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Avance Clinical Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,671 [2],[3],[13],[30]   1,671 [2],[3],[13],[30]     1,609 [5],[6],[7],[9],[31]            
Cost   1,703 [2],[3],[13],[30]   1,703 [2],[3],[13],[30]     1,683 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   340 [3],[18]   340 [3],[18]     304 [6],[10]            
Cost   192 [3],[18]   192 [3],[18]     192 [6],[10]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,713 [3],[13],[17]   4,713 [3],[13],[17]     4,738 [6],[9],[19]            
Cost   4,690 [3],[13],[17]   4,690 [3],[13],[17]     4,707 [6],[9],[19]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Cost   (2) [3],[13],[14],[17]   (2) [3],[13],[14],[17]     (3) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,165 [3]   2,165 [3]     2,042 [6]            
Cost   2,156 [3]   2,156 [3]     2,031 [6]            
Investment, Identifier [Axis]: BCTS Parent, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[32]   1,215   1,215                  
Cost [2],[3],[13],[14],[32]   1,237   1,237                  
Investment, Identifier [Axis]: BCTS Parent, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[32]   245   245                  
Cost [2],[3],[13],[14],[32]   249   249                  
Investment, Identifier [Axis]: BKF Buyer, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,205 [3],[18]   1,205 [3],[18]     1,145 [6],[10]            
Cost   1,004 [3],[18]   1,004 [3],[18]     1,004 [6],[10]            
Investment, Identifier [Axis]: BKF Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,120 [3],[13],[14],[17]   4,120 [3],[13],[14],[17]     7,988 [6],[9],[19]            
Cost   4,130 [3],[13],[14],[17]   4,130 [3],[13],[14],[17]     7,985 [6],[9],[19]            
Investment, Identifier [Axis]: BKF Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (40) [3],[13],[14],[17]   (40) [3],[13],[14],[17]     (33) [6],[7],[9],[19]            
Cost   (27) [3],[13],[14],[17]   (27) [3],[13],[14],[17]     (32) [6],[7],[9],[19]            
Investment, Identifier [Axis]: BLI Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,548 [3],[12],[13],[14]   2,548 [3],[12],[13],[14]     2,547 [6],[7],[8],[9]            
Cost   2,544 [3],[12],[13],[14]   2,544 [3],[12],[13],[14]     2,548 [6],[7],[8],[9]            
Investment, Identifier [Axis]: BLI Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   138 [3],[12],[13],[14]   138 [3],[12],[13],[14]     (6) [6],[7],[8],[9]            
Cost   137 [3],[12],[13],[14]   137 [3],[12],[13],[14]     (6) [6],[7],[8],[9]            
Investment, Identifier [Axis]: BNI Global, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   10,267 [3],[13],[33]   10,267 [3],[13],[33]     10,598 [6],[9],[34]            
Cost   9,676 [3],[13],[33]   9,676 [3],[13],[33]     9,680 [6],[9],[34]            
Investment, Identifier [Axis]: BPG Holdings IV Corp | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,575 [3],[12],[13]   11,575 [3],[12],[13]     11,347 [6],[8],[9]            
Cost   14,368 [3],[12],[13]   14,368 [3],[12],[13]     14,005 [6],[8],[9]            
Investment, Identifier [Axis]: Balaena Maritime (UK) Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[22]   19,513   19,513                  
Cost [2],[3],[13],[22]   19,622   19,622                  
Investment, Identifier [Axis]: Balaena Maritime (UK) Limited | Warrants                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[18]   0   0                  
Cost [2],[3],[18]   0   0                  
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15],[20]   0   0                  
Cost [2],[3],[13],[15],[20]   3,272   3,272                  
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16],[21]             655            
Cost [5],[6],[9],[16],[21]             3,272            
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             47            
Cost [5],[6],[9],[16]             47            
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 3                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             376            
Cost [5],[6],[9],[16]             376            
Investment, Identifier [Axis]: Basin Innovation Group, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,952 [3],[13],[17]   7,952 [3],[13],[17]     7,665 [6],[7],[9],[29]            
Cost   7,932 [3],[13],[17]   7,932 [3],[13],[17]     7,563 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Basin Innovation Group, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (17) [3],[13],[14],[17]   (17) [3],[13],[14],[17]     0 [6],[7],[9],[29]            
Cost   (21) [3],[13],[14],[17]   (21) [3],[13],[14],[17]     (23) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Beyond Risk Management, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             1,775            
Cost [6],[7],[8],[9]             1,763            
Investment, Identifier [Axis]: Bidwax | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,971 [2],[3],[13],[24]   7,971 [2],[3],[13],[24]     8,188 [5],[6],[9],[23]            
Cost   8,201 [2],[3],[13],[24]   8,201 [2],[3],[13],[24]     8,182 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Biolam Group | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [36]   1,312 [2],[3],[13],[20],[24],[35]   1,312 [2],[3],[13],[20],[24],[35]     1,731 [5],[6],[9],[21],[23],[37]            
Cost   2,537 [2],[3],[13],[20],[24],[35]   2,537 [2],[3],[13],[20],[24],[35]     2,537 [5],[6],[9],[21],[23],[37]            
Investment, Identifier [Axis]: Biolam Group | Ordinary Shares                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18],[35]   0 [2],[3],[18],[35]     0 [5],[6],[10],[37]            
Cost   0 [2],[3],[18],[35]   0 [2],[3],[18],[35]     0 [5],[6],[10],[37]            
Investment, Identifier [Axis]: Biolam | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [38]             1,731   $ 0        
Investment, Identifier [Axis]: Biolam | Ordinary Shares                          
Schedule of Investments [Line Items]                          
Fair Value             0   0        
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,733 [3],[13],[14],[17]   4,733 [3],[13],[14],[17]     4,830 [6],[9],[19]            
Cost   4,732 [3],[13],[14],[17]   4,732 [3],[13],[14],[17]     4,785 [6],[9],[19]            
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   272 [3]   272 [3]     361 [6],[10]            
Cost   287 [3]   287 [3]     287 [6],[10]            
Investment, Identifier [Axis]: Bitly, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,287 [3],[13],[17]   2,287 [3],[13],[17]     4,763 [6],[8],[9]            
Cost   2,284 [3],[13],[17]   2,284 [3],[13],[17]     4,764 [6],[8],[9]            
Investment, Identifier [Axis]: Bitly, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (1) [3],[13],[14],[17]   (1) [3],[13],[14],[17]     (2) [6],[7],[8],[9]            
Cost   (2) [3],[13],[14],[17]   (2) [3],[13],[14],[17]     (2) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [39]             0   0        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [39]             0   2,744        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value             0   0        
Investment, Identifier [Axis]: Bounteous, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,029 [3],[12],[13]   4,029 [3],[12],[13]     4,064 [6],[9],[19]            
Cost   4,027 [3],[12],[13]   4,027 [3],[12],[13]     4,040 [6],[9],[19]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   2,230 [3],[12],[13]   2,230 [3],[12],[13]     2,361 [6],[8],[9]            
Cost   2,254 [3],[12],[13]   2,254 [3],[12],[13]     2,403 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   2,256 [3],[12],[13]   2,256 [3],[12],[13]     2,385 [6],[8],[9]            
Cost   2,279 [3],[12],[13]   2,279 [3],[12],[13]     2,429 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 3                          
Schedule of Investments [Line Items]                          
Fair Value   2,256 [3],[12],[13]   2,256 [3],[12],[13]     2,386 [6],[8],[9]            
Cost   2,279 [3],[12],[13]   2,279 [3],[12],[13]     2,429 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 4                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   2,431   2,431                  
Cost [3],[12],[13]   2,458   2,458                  
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 5                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   2,431   2,431                  
Cost [3],[12],[13]   2,458   2,458                  
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 6                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   2,431   2,431                  
Cost [3],[12],[13]   2,458   2,458                  
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC | Preferred Stock- Series C                          
Schedule of Investments [Line Items]                          
Fair Value   16,984 [3]   16,984 [3]     16,336 [6]            
Cost   18,632 [3]   18,632 [3]     17,978 [6]            
Investment, Identifier [Axis]: BrightSign LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,922 [3],[13],[17]   4,922 [3],[13],[17]     5,023 [6],[9],[19]            
Cost   4,983 [3],[13],[17]   4,983 [3],[13],[17]     5,005 [6],[9],[19]            
Investment, Identifier [Axis]: BrightSign LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   1,484 [3]   1,484 [3]     1,384 [6]            
Cost   1,107 [3]   1,107 [3]     1,107 [6]            
Investment, Identifier [Axis]: BrightSign LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (20) [3],[13],[14],[17]   (20) [3],[13],[14],[17]     997 [6],[7],[9],[19]            
Cost   (3) [3],[13],[14],[17]   (3) [3],[13],[14],[17]     993 [6],[7],[9],[19]            
Investment, Identifier [Axis]: British Engineering Services Holdco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   14,785 [2],[3],[13],[28]   14,785 [2],[3],[13],[28]     13,936 [5],[6],[9],[27]            
Cost   16,529 [2],[3],[13],[28]   16,529 [2],[3],[13],[28]     16,080 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Broadstone Group UK LTD | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,829 [2],[3],[13],[14],[28]   1,829 [2],[3],[13],[14],[28]     1,731 [5],[6],[7],[9],[27]            
Cost   1,747 [2],[3],[13],[14],[28]   1,747 [2],[3],[13],[14],[28]     1,629 [5],[6],[7],[9],[27]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,132 [3],[12],[13],[14]   2,132 [3],[12],[13],[14]     2,136 [6],[7],[8],[9]            
Cost   2,128 [3],[12],[13],[14]   2,128 [3],[12],[13],[14]     2,136 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   387 [3],[18]   387 [3],[18]     312 [6],[10]            
Cost   312 [3],[18]   312 [3],[18]     312 [6],[10]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   108 [3],[12],[13],[14]   108 [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Cost   107 [3],[12],[13],[14]   107 [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Brown Machine Group Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,288 [3],[12],[13]   5,288 [3],[12],[13]     5,513 [6],[8],[9]            
Cost   5,827 [3],[12],[13]   5,827 [3],[12],[13]     6,063 [6],[8],[9]            
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   409 [3],[18]   409 [3],[18]     334 [6],[10]            
Cost   455 [3],[18]   455 [3],[18]     455 [6],[10]            
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,159 [3],[12],[13]   4,159 [3],[12],[13]     3,986 [6],[8],[9]            
Cost   4,444 [3],[12],[13]   4,444 [3],[12],[13]     4,435 [6],[8],[9]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,990 [3],[12],[13],[14]   5,990 [3],[12],[13],[14]     5,953 [6],[7],[9],[29]            
Cost   5,929 [3],[12],[13],[14]   5,929 [3],[12],[13],[14]     5,905 [6],[7],[9],[29]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   267 [3],[18]   267 [3],[18]     262 [6],[10]            
Cost   233 [3],[18]   233 [3],[18]     233 [6],[10]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (5) [3],[12],[13],[14]   (5) [3],[12],[13],[14]     (8) [6],[7],[9],[29]            
Cost   (13) [3],[12],[13],[14]   (13) [3],[12],[13],[14]     (15) [6],[7],[9],[29]            
Investment, Identifier [Axis]: CEC Entertainment, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,391 [3],[12],[13]   3,391 [3],[12],[13]     3,429 [6],[8],[9]            
Cost   3,390 [3],[12],[13]   3,390 [3],[12],[13]     3,428 [6],[8],[9]            
Investment, Identifier [Axis]: CGI Parent, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,382 [3],[12],[13]   13,382 [3],[12],[13]     13,515 [6],[8],[9]            
Cost   13,321 [3],[12],[13]   13,321 [3],[12],[13]     13,358 [6],[8],[9]            
Investment, Identifier [Axis]: CGI Parent, LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,647 [3],[18]   1,647 [3],[18]     1,947 [6],[10]            
Cost   722 [3],[18]   722 [3],[18]     722 [6],[10]            
Investment, Identifier [Axis]: CGI Parent, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   (9) [3],[12],[13],[14]   (9) [3],[12],[13],[14]     (12) [6],[7],[8],[9]            
Investment, Identifier [Axis]: CH Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   870 [3],[12],[13]   870 [3],[12],[13]     872 [6],[8],[9]            
Cost   857 [3],[12],[13]   857 [3],[12],[13]     858 [6],[8],[9]            
Investment, Identifier [Axis]: CH Buyer, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   72 [3],[18]   72 [3],[18]     78 [6],[10]            
Cost   69 [3],[18]   69 [3],[18]     69 [6],[10]            
Investment, Identifier [Axis]: CH Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,649 [3],[12],[13]   6,649 [3],[12],[13]     11,452 [6],[9],[29]            
Cost   6,628 [3],[12],[13]   6,628 [3],[12],[13]     11,442 [6],[9],[29]            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   4,149   4,149                  
Cost [3],[12],[13]   4,711   4,711                  
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             3,489            
Cost [6],[8],[9]             4,048            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             568            
Cost [6],[8],[9]             657            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   506 [3],[18]   506 [3],[18]     506 [6],[10]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,779 [3],[18]   1,779 [3],[18]     1,518 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   10,946 [3],[12],[13]   10,946 [3],[12],[13]     11,014 [6],[8],[9]            
Cost   10,784 [3],[12],[13]   10,784 [3],[12],[13]     10,827 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Out Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   2,577 [3],[12],[13]   2,577 [3],[12],[13]     2,400 [6],[8],[9]            
Cost   2,577 [3],[12],[13]   2,577 [3],[12],[13]     2,383 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Out Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   932 [3],[12],[13]   932 [3],[12],[13]     881 [6],[8],[9]            
Cost   932 [3],[12],[13]   932 [3],[12],[13]     881 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Last In First Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,229 [3],[12],[13]   5,229 [3],[12],[13]     4,870 [6],[8],[9]            
Cost   5,178 [3],[12],[13]   5,178 [3],[12],[13]     4,786 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Second Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   730 [3],[12],[13]   730 [3],[12],[13]     683 [6],[8],[9]            
Cost   730 [3],[12],[13]   730 [3],[12],[13]     683 [6],[8],[9]            
Investment, Identifier [Axis]: CTS US Bidco, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,823 [2],[3],[12],[13]   3,823 [2],[3],[12],[13]     3,717 [5],[6],[8],[9]            
Cost   3,722 [2],[3],[12],[13]   3,722 [2],[3],[12],[13]     3,718 [5],[6],[8],[9]            
Investment, Identifier [Axis]: CW Group Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,147 [3],[12],[13],[14]   5,147 [3],[12],[13],[14]     5,173 [6],[7],[8],[9]            
Cost   5,063 [3],[12],[13],[14]   5,063 [3],[12],[13],[14]     5,074 [6],[7],[8],[9]            
Investment, Identifier [Axis]: CW Group Holdings, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   487 [3],[18]   487 [3],[18]     500 [6],[10]            
Cost   161 [3],[18]   161 [3],[18]     161 [6],[10]            
Investment, Identifier [Axis]: Caldwell & Gregory LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   14,691 [3],[12],[13],[14]   14,691 [3],[12],[13],[14]     14,308 [6],[7],[8],[9]            
Cost   14,527 [3],[12],[13],[14]   14,527 [3],[12],[13],[14]     14,257 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Caldwell & Gregory LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (22) [6],[7],[8],[9]            
Cost   (27) [3],[12],[13],[14]   (27) [3],[12],[13],[14]     (30) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class A Equity                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   389 [2],[3],[18]   389 [2],[3],[18]     389 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class C - Warrants                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class X Equity                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   35 [2],[3],[18]   35 [2],[3],[18]     35 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   121 [2],[3],[13],[20],[40]   121 [2],[3],[13],[20],[40]     161 [5],[6],[9],[21],[41]            
Cost   1,850 [2],[3],[13],[20],[40]   1,850 [2],[3],[13],[20],[40]     1,850 [5],[6],[9],[21],[41]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Super Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   229 [2],[3],[14]   229 [2],[3],[14]     268 [5],[6],[7]            
Cost   79 [2],[3],[14]   79 [2],[3],[14]     96 [5],[6],[7]            
Investment, Identifier [Axis]: Cascade Residential Services LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,212 [3],[13],[17]   4,212 [3],[13],[17]     4,537 [6],[8],[9]            
Cost   4,507 [3],[13],[17]   4,507 [3],[13],[17]     4,527 [6],[8],[9]            
Investment, Identifier [Axis]: Cascade Residential Services LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   172 [3],[13],[14],[17]   172 [3],[13],[14],[17]     (5) [6],[7],[8],[9]            
Cost   194 [3],[13],[14],[17]   194 [3],[13],[14],[17]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Catawba River Limited | Structured - Junior Note                          
Schedule of Investments [Line Items]                          
Fair Value   2,217 [2],[3],[18]   2,217 [2],[3],[18]     1,868 [5],[6],[10]            
Cost   3,496 [2],[3],[18]   3,496 [2],[3],[18]     3,900 [5],[6],[10]            
Investment, Identifier [Axis]: Celebration Bidco, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   10,355 [3],[18],[35]   10,355 [3],[18],[35]     8,925 [6],[10],[37]   11,262        
Cost   12,177 [3],[18],[35]   12,177 [3],[18],[35]     12,177 [6],[10],[37]            
Investment, Identifier [Axis]: Celebration Bidco, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,578 [3],[12],[13],[35]   8,578 [3],[12],[13],[35]     8,463 [6],[8],[37]   6,414        
Cost   8,722 [3],[12],[13],[35]   8,722 [3],[12],[13],[35]     8,679 [6],[8],[37]            
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   3,525 [2],[3],[13],[24]   3,525 [2],[3],[13],[24]     3,593 [5],[6],[9],[23]            
Cost   3,314 [2],[3],[13],[24]   3,314 [2],[3],[13],[24]     3,306 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   648 [2],[3],[13],[24]   648 [2],[3],[13],[24]     666 [5],[6],[7],[9],[23]            
Cost   649 [2],[3],[13],[24]   649 [2],[3],[13],[24]     646 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   9,175   9,175                  
Cost [3],[12],[13],[14]   9,172   9,172                  
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   966   966                  
Cost [3],[12],[13]   969   969                  
Investment, Identifier [Axis]: CloudOne Digital Corp. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,125 [3],[12],[13]   12,125 [3],[12],[13]     12,160 [6],[8],[9]            
Cost   12,097 [3],[12],[13]   12,097 [3],[12],[13]     12,147 [6],[8],[9]            
Investment, Identifier [Axis]: CloudOne Digital Corp. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (24) [3],[12],[13],[14]   (24) [3],[12],[13],[14]     (29) [6],[7],[8],[9]            
Cost   (29) [3],[12],[13],[14]   (29) [3],[12],[13],[14]     (32) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   20,546 [3],[18],[35]   20,546 [3],[18],[35]     19,983 [6],[10],[37]   16,852        
Cost   16,495 [3],[18],[35]   16,495 [3],[18],[35]     16,495 [6],[10],[37]            
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   16,001 [3],[35]   16,001 [3],[35]     15,891 [6],[37]   15,770        
Cost   15,848 [3],[35]   15,848 [3],[35]     15,793 [6],[37]            
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   7,377 [3],[35]   7,377 [3],[35]     7,327 [6],[37]   7,271        
Cost   7,379 [3],[35]   7,379 [3],[35]     7,359 [6],[37]            
Investment, Identifier [Axis]: Cobham Slip Rings SAS | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,303 [2],[3],[12],[13]   1,303 [2],[3],[12],[13]     1,303 [5],[6],[8],[9]            
Cost   1,295 [2],[3],[12],[13]   1,295 [2],[3],[12],[13]     1,292 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Coherus Biosciences, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,923 [3],[12],[13]   3,923 [3],[12],[13]     3,963 [6],[8],[9]            
Cost   3,914 [3],[12],[13]   3,914 [3],[12],[13]     3,903 [6],[8],[9]            
Investment, Identifier [Axis]: Coherus Biosciences, Inc. | Royalty Rights                          
Schedule of Investments [Line Items]                          
Fair Value   1,459 [3]   1,459 [3]     1,486 [6]            
Cost   1,237 [3]   1,237 [3]     1,292 [6]            
Investment, Identifier [Axis]: Command Alkon (Project Potter Buyer, LLC) | Class B Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   163 [3],[18]   163 [3],[18]     187 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Compass Precision, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   393 [3],[18]   393 [3],[18]     383 [6],[10]            
Cost   125 [3],[18]   125 [3],[18]     125 [6],[10]            
Investment, Identifier [Axis]: Compass Precision, LLC | Senior Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   658 [3]   658 [3]     655 [6]            
Cost   655 [3]   655 [3]     651 [6]            
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   10,721   10,721                  
Cost [3],[12],[13]   10,661   10,661                  
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             7,505            
Cost [6],[8],[9]             7,440            
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             3,278            
Cost [6],[8],[9]             3,230            
Investment, Identifier [Axis]: Comply365, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   290 [3],[12],[13],[14]   290 [3],[12],[13],[14]     293 [6],[7],[8],[9]            
Cost   283 [3],[12],[13],[14]   283 [3],[12],[13],[14]     282 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Contabo Finco S.À R.L | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   5,324   5,324                  
Cost [2],[3],[13],[15]   4,584   4,584                  
Investment, Identifier [Axis]: Contabo FincoS.À R.L | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             5,469            
Cost [5],[6],[9],[16]             4,574            
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class A Units                          
Schedule of Investments [Line Items]                          
Fair Value   242 [2],[3],[18]   242 [2],[3],[18]     243 [5],[6],[10]            
Cost   205 [2],[3],[18]   205 [2],[3],[18]     205 [5],[6],[10]            
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class B Units                          
Schedule of Investments [Line Items]                          
Fair Value   300 [2],[3],[18]   300 [2],[3],[18]     420 [5],[6],[10]            
Cost   446 [2],[3],[18]   446 [2],[3],[18]     446 [5],[6],[10]            
Investment, Identifier [Axis]: Coyo Uprising GmbH | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,332 [2],[3],[13],[14],[24]   5,332 [2],[3],[13],[14],[24]     5,477 [5],[6],[7],[9],[23]            
Cost   5,463 [2],[3],[13],[14],[24]   5,463 [2],[3],[13],[14],[24]     5,448 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,630 [3],[13],[14],[17]   5,630 [3],[13],[14],[17]     4,748 [6],[7],[8],[9]            
Cost   5,629 [3],[13],[14],[17]   5,629 [3],[13],[14],[17]     4,749 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2,694 [3]   2,694 [3]     2,557 [6]            
Cost   2,700 [3]   2,700 [3]     2,567 [6]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   427 [3],[13],[14],[17]   427 [3],[13],[14],[17]     (9) [6],[7],[8],[9]            
Cost   427 [3],[13],[14],[17]   427 [3],[13],[14],[17]     (9) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Warrants                          
Schedule of Investments [Line Items]                          
Fair Value   17 [3],[18]   17 [3],[18]     0 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,780 [3],[12],[13]   1,780 [3],[12],[13]     1,791 [6],[8],[9]            
Cost   1,770 [3],[12],[13]   1,770 [3],[12],[13]     1,778 [6],[8],[9]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   463 [3],[18]   463 [3],[18]     409 [6],[10]            
Cost   347 [3],[18]   347 [3],[18]     347 [6],[10]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   277 [3],[12],[13],[14]   277 [3],[12],[13],[14]     339 [6],[7],[8],[9]            
Cost   267 [3],[12],[13],[14]   267 [3],[12],[13],[14]     325 [6],[7],[8],[9]            
Investment, Identifier [Axis]: DISA Holdings Corp. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,776 [3],[12],[13]   6,776 [3],[12],[13]     6,880 [6],[8],[9]            
Cost   6,756 [3],[12],[13]   6,756 [3],[12],[13]     6,773 [6],[8],[9]            
Investment, Identifier [Axis]: DISA Holdings Corp. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (4) [3],[12],[13],[14]   (4) [3],[12],[13],[14]     114 [6],[7],[8],[9]            
Cost   (6) [3],[12],[13],[14]   (6) [3],[12],[13],[14]     108 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Dane Street, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   1,125   1,125                  
Cost [3],[12],[13],[14]   1,124   1,124                  
Investment, Identifier [Axis]: Dane Street, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (5)   (5)                  
Cost [3],[12],[13],[14]   (5)   (5)                  
Investment, Identifier [Axis]: DataServ Integrations, LLC | Preferred Units                          
Schedule of Investments [Line Items]                          
Fair Value   237 [3],[18]   237 [3],[18]     235 [6],[10]            
Cost   192 [3],[18]   192 [3],[18]     192 [6],[10]            
Investment, Identifier [Axis]: David Wood Baking UK Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   872 [2],[3],[13],[28]   872 [2],[3],[13],[28]     862 [5],[6],[9],[27]            
Cost   864 [2],[3],[13],[28]   864 [2],[3],[13],[28]     827 [5],[6],[9],[27]            
Investment, Identifier [Axis]: DecksDirect, LLC | Class A Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   47 [3],[18]   47 [3],[18]     47 [6],[10]            
Investment, Identifier [Axis]: DecksDirect, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   55 [3],[18]   55 [3],[18]     55 [6],[10]            
Investment, Identifier [Axis]: DecksDirect, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             988            
Cost [6],[8],[9]             1,480            
Investment, Identifier [Axis]: DecksDirect, LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6]            
Cost   11 [3],[18]   11 [3],[18]     11 [6]            
Investment, Identifier [Axis]: DecksDirect, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             168            
Cost [6],[7],[8],[9]             294            
Investment, Identifier [Axis]: Discovery Buyer, L.P. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   16,892 [3],[12],[13],[14]   16,892 [3],[12],[13],[14]     16,904 [6],[7],[8],[9]            
Cost   16,820 [3],[12],[13],[14]   16,820 [3],[12],[13],[14]     16,859 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Discovery Buyer, L.P. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (16) [6],[7],[8],[9]            
Cost   (18) [3],[12],[13],[14]   (18) [3],[12],[13],[14]     (20) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   550 [3]   550 [3]     456 [6]            
Cost   277 [3]   277 [3]     277 [6]            
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,031 [3]   1,031 [3]     807 [6]            
Cost   1,034 [3]   1,034 [3]     805 [6]            
Investment, Identifier [Axis]: Dryden 49 Senior Loan Fund, Series 2017-49A | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[10],[11]             2            
Cost [5],[10],[11]             2,043            
Investment, Identifier [Axis]: Dunlipharder B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,000 [2],[3],[12],[13]   1,000 [2],[3],[12],[13]     1,000 [5],[6],[8],[9]            
Cost   994 [2],[3],[12],[13]   994 [2],[3],[12],[13]     993 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Durare Bidco, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,797 [3],[12],[13],[14]   1,797 [3],[12],[13],[14]     1,392 [6],[7],[8],[9]            
Cost   1,805 [3],[12],[13],[14]   1,805 [3],[12],[13],[14]     1,390 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Durare Bidco, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (8) [6],[7],[8],[9]            
Cost   (8) [3],[12],[13],[14]   (8) [3],[12],[13],[14]     (9) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Dwyer Instruments, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   14,366 [3],[12],[13]   14,366 [3],[12],[13]     14,476 [6],[8],[9]            
Cost   14,229 [3],[12],[13]   14,229 [3],[12],[13]     14,319 [6],[8],[9]            
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[16]             2,056            
Cost [5],[6],[7],[9],[16]             1,793            
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   1,972   1,972                  
Cost [2],[3],[13],[15]   1,808   1,808                  
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[12],[13]   1,527   1,527                  
Cost [2],[3],[12],[13]   1,558   1,558                  
Investment, Identifier [Axis]: EFC International | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   212 [3],[18]   212 [3],[18]     217 [6],[10]            
Cost   231 [3],[18]   231 [3],[18]     231 [6],[10]            
Investment, Identifier [Axis]: EFC International | Senior Unsecured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   828 [3]   828 [3]     820 [6]            
Cost   822 [3]   822 [3]     810 [6]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2,948 [3],[18],[35]   2,948 [3],[18],[35]     0            
Cost [3],[18],[35]   3,005   3,005                  
Investment, Identifier [Axis]: EMI Porta Holdco LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,656 [3],[12],[13],[35]   4,656 [3],[12],[13],[35]     10,985 [6],[8],[9]            
Cost   4,656 [3],[12],[13],[35]   4,656 [3],[12],[13],[35]     11,942 [6],[8],[9]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | First Lien Senior Secured Term Loan 2026                          
Schedule of Investments [Line Items]                          
Fair Value   4,656   4,656     0            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2,369 [3],[35]   2,369 [3],[35]     0            
Cost [3],[35]   2,324   2,324                  
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14],[35]   0 [3],[12],[13],[14],[35]     513 [6],[7],[8],[9]            
Cost   0 [3],[12],[13],[14],[35]   0 [3],[12],[13],[14],[35]     752 [6],[7],[8],[9]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Revolver 2026                          
Schedule of Investments [Line Items]                          
Fair Value   0   0     0            
Investment, Identifier [Axis]: ERS Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   1,930   1,930                  
Cost [3],[13],[14],[17]   1,928   1,928                  
Investment, Identifier [Axis]: ERS Holdings, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   42   42                  
Cost [3],[18]   46   46                  
Investment, Identifier [Axis]: ERS Holdings, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   (2)   (2)                  
Cost [3],[13],[14],[17]   (3)   (3)                  
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   832 [2],[3],[13],[14],[24]   832 [2],[3],[13],[14],[24]     916 [5],[6],[9],[41]            
Cost   808 [2],[3],[13],[14],[24]   808 [2],[3],[13],[14],[24]     912 [5],[6],[9],[41]            
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   883 [2],[3],[13],[40]   883 [2],[3],[13],[40]     561 [5],[6],[7],[9],[23]            
Cost   913 [2],[3],[13],[40]   913 [2],[3],[13],[40]     520 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 3                          
Schedule of Investments [Line Items]                          
Fair Value   740 [2],[3],[13],[24]   740 [2],[3],[13],[24]     675 [5],[6]            
Cost   714 [2],[3],[13],[24]   714 [2],[3],[13],[24]     627 [5],[6]            
Investment, Identifier [Axis]: EZ SMBO Bidco | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   329   329                  
Cost [2],[3],[13],[15]   332   332                  
Investment, Identifier [Axis]: Echo Global Logistics, Inc. | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   966 [3],[18]   966 [3],[18]     351 [6],[10]            
Cost   531 [3],[18]   531 [3],[18]     531 [6],[10]            
Investment, Identifier [Axis]: Echo Global Logistics, Inc. | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             9,450            
Cost [6],[9],[19]             9,376            
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | First Lien Senior Secured Loan                          
Schedule of Investments [Line Items]                          
Fair Value           $ 5,000              
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | First Lien Senior Secured Loan | Funded                          
Schedule of Investments [Line Items]                          
Fair Value   3,300   3,300                  
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value                     $ 4,500    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver | Funded                          
Schedule of Investments [Line Items]                          
Fair Value   12,900   12,900     9,900            
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver | Unfunded                          
Schedule of Investments [Line Items]                          
Fair Value                   $ 22,700 13,600    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Second Lien Senior Secured Loan                          
Schedule of Investments [Line Items]                          
Fair Value                     $ 89,800    
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,333 [3],[13],[14],[17],[35]   3,333 [3],[13],[14],[17],[35]     0            
Cost [3],[13],[14],[17],[35]   3,333   3,333                  
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   139,539 [3],[35]   139,539 [3],[35]     139,539 [6],[37]            
Cost   93,052 [3],[35]   93,052 [3],[35]     93,052 [6],[37]            
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | LLC units                          
Schedule of Investments [Line Items]                          
Fair Value             139,539   136,855        
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   12,879 [3],[13],[14],[17],[35]   12,879 [3],[13],[14],[17],[35]     9,909 [6],[7],[19],[37]   10,091        
Cost   12,830 [3],[13],[14],[17],[35]   12,830 [3],[13],[14],[17],[35]     9,852 [6],[7],[19],[37]            
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,546 [3],[35]   4,546 [3],[35]     4,546 [6],[37]   4,545        
Cost   4,530 [3],[35]   4,530 [3],[35]     4,526 [6],[37]            
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   722 [3]   722 [3]     318 [6]            
Cost   723 [3]   723 [3]     313 [6]            
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   356 [3],[18]   356 [3],[18]     354 [6],[10]            
Cost   188 [3],[18]   188 [3],[18]     188 [6],[10]            
Investment, Identifier [Axis]: Entact Environmental Services, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,980 [3],[12],[13]   5,980 [3],[12],[13]     6,230 [6],[8],[9]            
Cost   5,969 [3],[12],[13]   5,969 [3],[12],[13]     6,210 [6],[8],[9]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   596 [2],[3],[13],[24]   596 [2],[3],[13],[24]     581 [5],[6],[9],[23]            
Cost   468 [2],[3],[13],[24]   468 [2],[3],[13],[24]     443 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   300 [2],[3],[12],[13]   300 [2],[3],[12],[13]     284 [5],[6],[8],[9]            
Cost   234 [2],[3],[12],[13]   234 [2],[3],[12],[13]     221 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 3                          
Schedule of Investments [Line Items]                          
Fair Value   930 [2],[3],[13],[28]   930 [2],[3],[13],[28]     894 [5],[6],[9],[27]            
Cost   690 [2],[3],[13],[28]   690 [2],[3],[13],[28]     651 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[23]             0            
Cost [5],[6],[9],[23]             1,427            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15],[20]   0   0                  
Cost [2],[3],[13],[15],[20]   1,523   1,523                  
Investment, Identifier [Axis]: Events Software BidCo Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,585 [2],[3],[13],[30]   1,585 [2],[3],[13],[30]     1,470 [5],[6],[7],[9],[31]            
Cost   1,837 [2],[3],[13],[30]   1,837 [2],[3],[13],[30]     1,826 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Everest Midco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   777   777                  
Cost [2],[3],[13],[15]   792   792                  
Investment, Identifier [Axis]: Everest Midco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[12],[13],[14]   3,191   3,191                  
Cost [2],[3],[12],[13],[14]   3,184   3,184                  
Investment, Identifier [Axis]: Everest Midco Limited | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[12],[13],[14]   (7)   (7)                  
Cost [2],[3],[12],[13],[14]   (8)   (8)                  
Investment, Identifier [Axis]: Expert Institute Group Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,087 [3],[13],[14],[25]   1,087 [3],[13],[14],[25]     1,071 [6],[7],[9],[29]            
Cost   1,064 [3],[13],[14],[25]   1,064 [3],[13],[14],[25]     1,067 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Expert Institute Group Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     (5) [6],[7],[9],[29]            
Cost   (5) [3],[13],[14],[25]   (5) [3],[13],[14],[25]     (6) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,037 [3],[12],[13]   3,037 [3],[12],[13]     3,096 [6],[8],[9]            
Cost   3,219 [3],[12],[13]   3,219 [3],[12],[13]     3,240 [6],[8],[9]            
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Cost   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     (2) [6],[7],[8],[9]            
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc. (f/k/a Fineline Technologies, Inc.) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[25]   6,885   6,885                  
Cost [3],[13],[25]   6,861   6,861                  
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc. (f/k/a/ Fineline Technologies, Inc.) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             6,903            
Cost [6],[9],[19]             6,911            
Investment, Identifier [Axis]: FSS Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,230 [3],[13],[17]   4,230 [3],[13],[17]     9,337 [6],[9],[19]            
Cost   4,230 [3],[13],[17]   4,230 [3],[13],[17]     9,337 [6],[9],[19]            
Investment, Identifier [Axis]: FSS Buyer LLC | LP Interest                          
Schedule of Investments [Line Items]                          
Fair Value   14 [3],[18]   14 [3],[18]     18 [6],[10]            
Cost   12 [3],[18]   12 [3],[18]     12 [6],[10]            
Investment, Identifier [Axis]: FSS Buyer LLC | LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   63 [3],[18]   63 [3],[18]     78 [6],[10]            
Cost   51 [3],[18]   51 [3],[18]     51 [6],[10]            
Investment, Identifier [Axis]: FSS Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   0   0                  
Cost [3],[13],[14],[17]   0   0                  
Investment, Identifier [Axis]: Faraday | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,741 [2],[3],[13],[15]   1,741 [2],[3],[13],[15]     1,787 [5],[6],[9],[16]            
Cost   1,635 [2],[3],[13],[15]   1,635 [2],[3],[13],[15]     1,632 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Featherstone Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,009 [2],[3],[12],[13]   1,009 [2],[3],[12],[13]     1,009 [5],[6],[8],[9]            
Cost   1,009 [2],[3],[12],[13]   1,009 [2],[3],[12],[13]     1,009 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Featherstone Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,289 [2],[3],[13],[28]   1,289 [2],[3],[13],[28]     1,307 [5],[6],[9],[27]            
Cost   1,284 [2],[3],[13],[28]   1,284 [2],[3],[13],[28]     1,265 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Ferrellgas L.P. | Opco Preferred Units                          
Schedule of Investments [Line Items]                          
Fair Value   3,030 [3]   3,030 [3]     3,030 [6]            
Cost   2,799 [3]   2,799 [3]     2,799 [6]            
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc. | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   485 [3],[18]   485 [3],[18]     5,896 [6]            
Cost   11,438 [3],[18]   11,438 [3],[18]     10,967 [6]            
Investment, Identifier [Axis]: Finaxy Holding | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,263 [2],[3],[13],[24]   4,263 [2],[3],[13],[24]     4,369 [5],[6],[9],[23]            
Cost   3,955 [2],[3],[13],[24]   3,955 [2],[3],[13],[24]     3,948 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Finexvet | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,894 [2],[3],[13],[24]   4,894 [2],[3],[13],[24]     5,077 [5],[6],[9],[23]            
Cost   5,082 [2],[3],[13],[24]   5,082 [2],[3],[13],[24]     5,070 [5],[6],[9],[23]            
Investment, Identifier [Axis]: FitzMark Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,994 [3],[13],[17]   3,994 [3],[13],[17]     3,994 [6],[9],[19]            
Cost   3,987 [3],[13],[17]   3,987 [3],[13],[17]     3,980 [6],[9],[19]            
Investment, Identifier [Axis]: Five Star Holding LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   720 [3],[18]   720 [3],[18]     784 [6],[10]            
Cost   967 [3],[18]   967 [3],[18]     967 [6],[10]            
Investment, Identifier [Axis]: Five Star Holding LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,692 [3],[12],[13]   13,692 [3],[12],[13]     13,692 [6],[8],[9]            
Cost   13,537 [3],[12],[13]   13,537 [3],[12],[13]     13,521 [6],[8],[9]            
Investment, Identifier [Axis]: Flywheel Holdings Segregated Portfolio 2025-2 | LP Interest                          
Schedule of Investments [Line Items]                          
Fair Value   4,004 [2],[3],[18]   4,004 [2],[3],[18]     2,861 [5],[6],[10]            
Cost   3,422 [2],[3],[18]   3,422 [2],[3],[18]     2,777 [5],[6],[10]            
Investment, Identifier [Axis]: Flywheel Re Segregated Portfolio 2022-4 | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,527 [2],[3]   1,527 [2],[3]     2,970 [5],[6]            
Cost   1,031 [2],[3]   1,031 [2],[3]     2,828 [5],[6]            
Investment, Identifier [Axis]: Footco 40 Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   232 [2],[3],[13],[15]   232 [2],[3],[13],[15]     247 [5],[6],[9],[16]            
Cost   223 [2],[3],[13],[15]   223 [2],[3],[13],[15]     223 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Footco 40 Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,634 [2],[3],[13],[22]   1,634 [2],[3],[13],[22]     1,714 [5],[6],[9],[26]            
Cost   1,649 [2],[3],[13],[22]   1,649 [2],[3],[13],[22]     1,645 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Class A LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   124 [3]   124 [3]     140 [6]            
Cost   122 [3]   122 [3]     122 [6]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Class B LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   54 [3],[18]   54 [3],[18]     61 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Forest Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,648 [3],[12],[13]   5,648 [3],[12],[13]     6,054 [6],[8],[9]            
Cost   5,984 [3],[12],[13]   5,984 [3],[12],[13]     6,016 [6],[8],[9]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (20) [3],[12],[13],[14]   (20) [3],[12],[13],[14]     (2) [6],[7],[8],[9]            
Cost   (5) [3],[12],[13],[14]   (5) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Forge Borrower, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   1,236   1,236                  
Cost [3],[12],[13],[14]   1,232   1,232                  
Investment, Identifier [Axis]: Forge Borrower, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (7)   (7)                  
Cost [3],[12],[13],[14]   (7)   (7)                  
Investment, Identifier [Axis]: FragilePak LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,473 [3],[12],[13]   4,473 [3],[12],[13]     4,496 [6],[8],[9]            
Cost   4,451 [3],[12],[13]   4,451 [3],[12],[13]     4,463 [6],[8],[9]            
Investment, Identifier [Axis]: FragilePak LLC | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   676 [3],[18]   676 [3],[18]     666 [6],[10]            
Cost   938 [3],[18]   938 [3],[18]     938 [6],[10]            
Investment, Identifier [Axis]: G 3 Chickadee Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   11,547   11,547                  
Cost [3],[12],[13]   11,541   11,541                  
Investment, Identifier [Axis]: G-3 Chickadee Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             11,667            
Cost [6],[8],[9]             11,672            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,048 [3],[12],[13]   7,048 [3],[12],[13]     8,382 [6],[8],[9]            
Cost   6,962 [3],[12],[13]   6,962 [3],[12],[13]     8,355 [6],[8],[9]            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   6,371 [3],[18]   6,371 [3],[18]     2,025 [6],[10]            
Cost   687 [3],[18]   687 [3],[18]     687 [6],[10]            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (23) [6],[7],[8],[9]            
Cost   (37) [3],[12],[13],[14]   (37) [3],[12],[13],[14]     (35) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GCDL LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   306 [3]   306 [3]     355 [6]            
Cost   243 [3]   243 [3]     243 [6]            
Investment, Identifier [Axis]: GCDL LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   612 [3],[12],[13]   612 [3],[12],[13]     501 [6],[7],[8],[9]            
Cost   608 [3],[12],[13]   608 [3],[12],[13]     501 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GCDL LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Cost   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMES LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,298 [3],[12],[13],[14]   8,298 [3],[12],[13],[14]     7,609 [6],[7],[8],[9]            
Cost   8,280 [3],[12],[13],[14]   8,280 [3],[12],[13],[14]     7,602 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMES LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   194 [3],[12],[13],[14]   194 [3],[12],[13],[14]     90 [6],[7],[8],[9]            
Cost   192 [3],[12],[13],[14]   192 [3],[12],[13],[14]     90 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMF Parent, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,205 [3],[12],[13],[14]   2,205 [3],[12],[13],[14]     2,200 [6],[7],[8],[9]            
Cost   2,202 [3],[12],[13],[14]   2,202 [3],[12],[13],[14]     2,200 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMF Parent, Inc. | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   113 [3],[18]   113 [3],[18]     138 [6],[10]            
Cost   138 [3],[18]   138 [3],[18]     138 [6],[10]            
Investment, Identifier [Axis]: GMF Parent, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   39 [3],[12],[13],[14]   39 [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Cost   38 [3],[12],[13],[14]   38 [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GPNZ II GmbH | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: GPNZ II GmbH | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[13],[20],[33]   0 [2],[3],[13],[20],[33]     239 [5],[6],[7]            
Cost   444 [2],[3],[13],[20],[33]   444 [2],[3],[13],[20],[33]     477 [5],[6],[7]            
Investment, Identifier [Axis]: GPNZ II GmbH | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   14 [2],[3],[14]   14 [2],[3],[14]     0 [5],[6],[9],[21],[34]            
Cost   551 [2],[3],[14]   551 [2],[3],[14]     444 [5],[6],[9],[21],[34]            
Investment, Identifier [Axis]: Global Academic Group Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   2,802 [2],[3],[13],[30]   2,802 [2],[3],[13],[30]     2,697 [5],[6],[9],[31]            
Cost   2,777 [2],[3],[13],[30]   2,777 [2],[3],[13],[30]     2,769 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Global Academic Group Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   625 [2],[3],[13],[42]   625 [2],[3],[13],[42]     632 [5],[6],[9],[43]            
Cost   672 [2],[3],[13],[42]   672 [2],[3],[13],[42]     670 [5],[6],[9],[43]            
Investment, Identifier [Axis]: Gojo Industries, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             12,474            
Cost [6],[8],[9]             12,244            
Investment, Identifier [Axis]: Greenhill II BV | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,711 [2],[3],[13],[14],[15]   1,711 [2],[3],[13],[14],[15]     1,762 [5],[6],[7],[9],[16]            
Cost   1,584 [2],[3],[13],[14],[15]   1,584 [2],[3],[13],[14],[15]     1,579 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Groupe Guemas | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,136 [2],[3],[13],[24]   5,136 [2],[3],[13],[24]     5,434 [5],[6],[9],[23]            
Cost   4,848 [2],[3],[13],[24]   4,848 [2],[3],[13],[24]     4,838 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Groupe Product Life | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   410 [2],[3],[13],[14],[15]   410 [2],[3],[13],[14],[15]     447 [5],[6],[7],[9],[16]            
Cost   482 [2],[3],[13],[14],[15]   482 [2],[3],[13],[14],[15]     467 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: HEKA Invest | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,136 [2],[3],[13],[15]   5,136 [2],[3],[13],[15]     5,501 [5],[6],[9],[16]            
Cost   4,536 [2],[3],[13],[15]   4,536 [2],[3],[13],[15]     4,525 [5],[6],[9],[16]            
Investment, Identifier [Axis]: HS Advisory Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,321 [3],[12],[13],[14]   2,321 [3],[12],[13],[14]     2,231 [6],[7],[8],[9]            
Cost   2,317 [3],[12],[13],[14]   2,317 [3],[12],[13],[14]     2,223 [6],[7],[8],[9]            
Investment, Identifier [Axis]: HS Advisory Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   274 [3],[12],[13],[14]   274 [3],[12],[13],[14]     (6) [6],[7],[8],[9]            
Cost   273 [3],[12],[13],[14]   273 [3],[12],[13],[14]     (8) [6],[7],[8],[9]            
Investment, Identifier [Axis]: HSL Compliance | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,360 [2],[3],[13],[14],[22]   3,360 [2],[3],[13],[14],[22]     3,061 [5],[6],[7],[9],[26]            
Cost   3,262 [2],[3],[13],[14],[22]   3,262 [2],[3],[13],[14],[22]     2,932 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: HTI Technology & Industries | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   10,959 [3],[12],[13],[14]   10,959 [3],[12],[13],[14]     10,394 [6],[7],[8],[9]            
Cost   11,050 [3],[12],[13],[14]   11,050 [3],[12],[13],[14]     11,086 [6],[7],[8],[9]            
Investment, Identifier [Axis]: HTI Technology & Industries | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (8) [3],[12],[13],[14]   (8) [3],[12],[13],[14]     (72) [6],[7],[8],[9]            
Cost   (3) [3],[12],[13],[14]   (3) [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Investment, Identifier [Axis]: HW Holdco, LLC (Hanley Wood LLC) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   10,019 [3],[12],[13]   10,019 [3],[12],[13]     10,132 [6],[8],[9]            
Cost   9,986 [3],[12],[13]   9,986 [3],[12],[13]     10,116 [6],[8],[9]            
Investment, Identifier [Axis]: Haystack Holdings LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,777 [3],[13],[14],[25]   8,777 [3],[13],[14],[25]     6,566 [6],[7],[9],[29]            
Cost   8,776 [3],[13],[14],[25]   8,776 [3],[13],[14],[25]     6,501 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Haystack Holdings LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (8) [3],[13],[14],[25]   (8) [3],[13],[14],[25]     (1) [6],[7],[9],[29]            
Cost   (8) [3],[13],[14],[25]   (8) [3],[13],[14],[25]     (10) [6],[7],[9],[29]            
Investment, Identifier [Axis]: HeartHealth Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   870 [2],[3],[13],[14],[30]   870 [2],[3],[13],[14],[30]     714 [5],[6],[7],[9],[31]            
Cost   815 [2],[3],[13],[14],[30]   815 [2],[3],[13],[14],[30]     771 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   15,745 [3]   15,745 [3]     14,690 [6]            
Cost   16,405 [3]   16,405 [3]     15,507 [6]            
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,110 [3],[12],[13]   7,110 [3],[12],[13]     7,147 [6],[8],[9]            
Cost   7,064 [3],[12],[13]   7,064 [3],[12],[13]     7,092 [6],[8],[9]            
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (17) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Heilbron (f/k/a Sucsez (Bolt Bidco B.V.)) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,436 [2],[3],[13],[33]   3,436 [2],[3],[13],[33]     3,521 [5],[6],[9],[23]            
Cost   3,676 [2],[3],[13],[33]   3,676 [2],[3],[13],[33]     3,676 [5],[6],[9],[23]            
Investment, Identifier [Axis]: HemaSource, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   156 [3],[18]   156 [3],[18]     141 [6],[10]            
Cost   101 [3],[18]   101 [3],[18]     101 [6],[10]            
Investment, Identifier [Axis]: HemaSource, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,616 [3],[13],[14],[17]   2,616 [3],[13],[14],[17]     2,467 [6],[7],[9],[19]            
Cost   2,577 [3],[13],[14],[17]   2,577 [3],[13],[14],[17]     2,449 [6],[7],[9],[19]            
Investment, Identifier [Axis]: HemaSource, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   135 [3],[13],[14],[17]   135 [3],[13],[14],[17]     (18) [6],[7],[9],[19]            
Cost   111 [3],[13],[14],[17]   111 [3],[13],[14],[17]     (28) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Herbalife Ltd. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[9],[19]             3,209            
Cost [5],[9],[19]             3,010            
Investment, Identifier [Axis]: High Street Buyer Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   290 [3],[12],[13],[14]   290 [3],[12],[13],[14]     188 [6],[7],[8],[9]            
Cost   290 [3],[12],[13],[14]   290 [3],[12],[13],[14]     188 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Home Care Assistance, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,160 [3],[12],[13]   3,160 [3],[12],[13]     3,225 [6],[8],[9]            
Cost   3,743 [3],[12],[13]   3,743 [3],[12],[13]     3,721 [6],[8],[9]            
Investment, Identifier [Axis]: HomeX Services Group LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,070 [3],[13],[17]   2,070 [3],[13],[17]     1,899 [6],[9]            
Cost   2,096 [3],[13],[17]   2,096 [3],[13],[17]     1,882 [6],[9]            
Investment, Identifier [Axis]: HomeX Services Group LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   64 [3],[13],[14],[17]   64 [3],[13],[14],[17]     32 [6],[7],[9],[19]            
Cost   68 [3],[13],[14],[17]   68 [3],[13],[14],[17]     29 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Honour Lane Logistics Holdings Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,393 [2],[3],[12],[13]   6,393 [2],[3],[12],[13]     6,667 [5],[6],[8],[9]            
Cost   6,589 [2],[3],[12],[13]   6,589 [2],[3],[12],[13]     6,573 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,895 [3],[12],[13],[14]   8,895 [3],[12],[13],[14]     8,922 [6],[7],[8],[9]            
Cost   8,911 [3],[12],[13],[14]   8,911 [3],[12],[13],[14]     8,934 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   794 [3],[12],[13],[14]   794 [3],[12],[13],[14]     671 [6],[7],[8],[9]            
Cost   796 [3],[12],[13],[14]   796 [3],[12],[13],[14]     672 [6],[7],[8],[9]            
Investment, Identifier [Axis]: ICREDITWORKS LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   11,504 [3]   11,504 [3]     10,842 [6]            
Cost   11,812 [3]   11,812 [3]     10,835 [6]            
Investment, Identifier [Axis]: ICREDITWORKS LLC | Warrants                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             2,916            
Cost [5],[6],[9],[16]             2,971            
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   1,811   1,811                  
Cost [2],[3],[13],[15]   1,903   1,903                  
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[15]   (51)   (51)                  
Cost [2],[3],[13],[14],[15]   (50)   (50)                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   7,563   7,563                  
Cost [3],[13],[14],[17]   7,566   7,566                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   295   295                  
Cost [3],[18]   294   294                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   104   104                  
Cost [3],[13],[14],[17]   104   104                  
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   947 [3],[18]   947 [3],[18]     961 [6],[10]            
Cost   750 [3],[18]   750 [3],[18]     750 [6],[10]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   11,801 [3],[12],[13]   11,801 [3],[12],[13]     11,955 [6],[8],[9]            
Cost   11,683 [3],[12],[13]   11,683 [3],[12],[13]     11,799 [6],[8],[9]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   782 [3],[12],[13]   782 [3],[12],[13]     793 [6],[8],[9]            
Cost   778 [3],[12],[13]   778 [3],[12],[13]     787 [6],[8],[9]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   226 [3],[12],[13],[14]   226 [3],[12],[13],[14]     226 [6],[7],[8],[9]            
Cost   215 [3],[12],[13],[14]   215 [3],[12],[13],[14]     211 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,409 [3],[12],[13],[14]   4,409 [3],[12],[13],[14]     4,312 [6],[7],[8],[9]            
Cost   4,508 [3],[12],[13],[14]   4,508 [3],[12],[13],[14]     4,499 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   195 [3],[18]   195 [3],[18]     174 [6],[10]            
Cost   289 [3],[18]   289 [3],[18]     289 [6],[10]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   364 [3],[12],[13],[14]   364 [3],[12],[13],[14]     356 [6],[7],[8],[9]            
Cost   373 [3],[12],[13],[14]   373 [3],[12],[13],[14]     372 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Infoniqa Holdings GmbH | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,962 [2],[3],[13],[24]   2,962 [2],[3],[13],[24]     3,086 [5],[6],[9],[23]            
Cost   2,940 [2],[3],[13],[24]   2,940 [2],[3],[13],[24]     2,934 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Innovad Group II BV | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             7,239            
Cost [5],[6],[9],[16]             7,142            
Investment, Identifier [Axis]: Innovad Group II BV | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[44]             1,157            
Cost [5],[6],[9],[44]             1,019            
Investment, Identifier [Axis]: Integrated Precision Systems, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   6,826   6,826                  
Cost [3],[13],[14],[17]   6,828   6,828                  
Investment, Identifier [Axis]: Integrated Precision Systems, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   358   358                  
Cost [3],[13],[14],[17]   358   358                  
Investment, Identifier [Axis]: International Fleet Financing No.2 B.V. | Class C Senior Secured Note                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7]             8,275            
Cost [5],[6],[7]             8,398            
Investment, Identifier [Axis]: International Fleet Financing No.2 B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[14]   8,813   8,813                  
Cost [2],[3],[14]   8,962   8,962                  
Investment, Identifier [Axis]: Interstellar Group B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,675 [2],[3],[13],[14],[15]   1,675 [2],[3],[13],[14],[15]     1,637 [5],[6],[7],[9],[16]            
Cost   1,634 [2],[3],[13],[14],[15]   1,634 [2],[3],[13],[14],[15]     1,630 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: InvoCare Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,233 [2],[3],[13],[14],[30]   2,233 [2],[3],[13],[14],[30]     2,159 [5],[6],[7],[9],[31]            
Cost   2,081 [2],[3],[13],[14],[30]   2,081 [2],[3],[13],[14],[30]     2,072 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Isolstar Holding NV (IPCOM) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,661 [2],[3],[13],[15]   5,661 [2],[3],[13],[15]     5,788 [5],[6],[9],[16]            
Cost   4,868 [2],[3],[13],[15]   4,868 [2],[3],[13],[15]     4,857 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's) | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[23]             1,263            
Cost [5],[6],[9],[23]             1,159            
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's) | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[29]             6,526            
Cost [5],[6],[9],[29]             6,460            
Investment, Identifier [Axis]: Jocassee Partners LLC                          
Schedule of Investments [Line Items]                          
Total contributed capital   35,000   35,000     35,000            
Investment, Identifier [Axis]: Jocassee Partners LLC | 9.1% Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value   33,180 [2],[35],[45]   33,180 [2],[35],[45]     37,986 [5],[7],[37],[46]            
Cost   35,158 [2],[35],[45]   35,158 [2],[35],[45]     35,158 [5],[7],[37],[46]            
Investment, Identifier [Axis]: Jocassee Partners LLC, Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value             37,986   40,761        
Investment, Identifier [Axis]: Jon Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,965 [2],[3],[13],[14],[42]   1,965 [2],[3],[13],[14],[42]     1,533 [5],[6],[7],[9],[43]            
Cost   2,152 [2],[3],[13],[14],[42]   2,152 [2],[3],[13],[14],[42]     1,720 [5],[6],[7],[9],[43]            
Investment, Identifier [Axis]: KAMC Holdings Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,202 [3],[12],[13]   5,202 [3],[12],[13]     5,364 [6],[8],[9]            
Cost   5,336 [3],[12],[13]   5,336 [3],[12],[13]     5,357 [6],[8],[9]            
Investment, Identifier [Axis]: KAMC Holdings Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   140 [3],[12],[13],[14]   140 [3],[12],[13],[14]     157 [6],[7],[8],[9]            
Cost   157 [3],[12],[13],[14]   157 [3],[12],[13],[14]     156 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Kanawha Scales & Systems, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   445 [3],[12],[13],[14]   445 [3],[12],[13],[14]     415 [6],[7],[8],[9]            
Cost   444 [3],[12],[13],[14]   444 [3],[12],[13],[14]     416 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Kanawha Scales & Systems, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   34 [3],[12],[13],[14]   34 [3],[12],[13],[14]     24 [6],[7],[8],[9]            
Cost   34 [3],[12],[13],[14]   34 [3],[12],[13],[14]     24 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Keystone Bidco B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   898 [2],[3],[13],[14],[24]   898 [2],[3],[13],[14],[24]     931 [5],[6],[7],[9],[23]            
Cost   875 [2],[3],[13],[14],[24]   875 [2],[3],[13],[14],[24]     862 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Keystone Bidco B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[23]             11            
Cost [5],[6],[7],[9],[23]             9            
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,952 [3],[12],[13]   12,952 [3],[12],[13]     13,020 [6],[9],[29]            
Cost   12,901 [3],[12],[13]   12,901 [3],[12],[13]     12,959 [6],[9],[29]            
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   861 [3],[18]   861 [3],[18]     791 [6],[10]            
Cost   638 [3],[18]   638 [3],[18]     638 [6],[10]            
Investment, Identifier [Axis]: Kite Topco Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[28]   2,667   2,667                  
Cost [2],[3],[13],[14],[28]   2,703   2,703                  
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   6,258   6,258                  
Cost [3],[12],[13],[14]   6,254   6,254                  
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (10)   (10)                  
Cost [3],[12],[13],[14]   (10)   (10)                  
Investment, Identifier [Axis]: LHS Borrower, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,837 [3],[13],[17]   8,837 [3],[13],[17]     9,019 [6],[9],[19]            
Cost   8,952 [3],[13],[17]   8,952 [3],[13],[17]     9,010 [6],[9],[19]            
Investment, Identifier [Axis]: LHS Borrower, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   193 [3],[13],[14],[17]   193 [3],[13],[14],[17]     88 [6],[7],[9],[19]            
Cost   203 [3],[13],[14],[17]   203 [3],[13],[14],[17]     87 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[23]             2,327            
Cost [5],[6],[7],[9],[23]             2,275            
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   382   382                  
Cost [2],[3],[13],[15]   377   377                  
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[24]   1,849   1,849                  
Cost [2],[3],[13],[24]   1,905   1,905                  
Investment, Identifier [Axis]: Lambir Bidco Limited | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,176 [2],[3]   2,176 [2],[3]     2,164 [5],[6]            
Cost   2,357 [2],[3]   2,357 [2],[3]     2,213 [5],[6]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   680 [2],[3],[13],[14],[25]   680 [2],[3],[13],[14],[25]     731 [5],[6],[7],[9],[29]            
Cost   720 [2],[3],[13],[14],[25]   720 [2],[3],[13],[14],[25]     716 [5],[6],[7],[9],[29]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   205 [2],[3],[13],[28]   205 [2],[3],[13],[28]     154 [5],[6],[9],[27]            
Cost   216 [2],[3],[13],[28]   216 [2],[3],[13],[28]     155 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   34 [2],[3],[13],[25]   34 [2],[3],[13],[25]     18 [5],[6],[7],[9],[29]            
Cost   35 [2],[3],[13],[25]   35 [2],[3],[13],[25]     17 [5],[6],[7],[9],[29]            
Investment, Identifier [Axis]: LeadsOnline, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   9,868 [3],[12],[13]   9,868 [3],[12],[13]     9,915 [6],[8],[9]            
Cost   9,861 [3],[12],[13]   9,861 [3],[12],[13]     9,896 [6],[8],[9]            
Investment, Identifier [Axis]: LeadsOnline, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   177 [3]   177 [3]     216 [6]            
Cost   85 [3]   85 [3]     85 [6]            
Investment, Identifier [Axis]: LeadsOnline, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (13) [6],[7],[8],[9]            
Cost   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (16) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Lido Purchaser, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   4,240   4,240                  
Cost [3],[12],[13],[14]   4,241   4,241                  
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | Class A Common Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[47]   0 [3],[18],[47]     0 [6],[10],[11]            
Cost   0 [3],[18],[47]   0 [3],[18],[47]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,812 [3],[12],[13],[47]   1,812 [3],[12],[13],[47]     2,094 [6],[8],[9],[11]            
Cost   2,879 [3],[12],[13],[47]   2,879 [3],[12],[13],[47]     2,895 [6],[8],[9],[11]            
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   699   699                  
Cost [2],[3],[13],[15]   722   722                  
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[22]   1,632   1,632                  
Cost [2],[3],[13],[14],[22]   1,658   1,658                  
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,215 [3],[12],[13],[14]   3,215 [3],[12],[13],[14]     3,199 [6],[7],[8],[9]            
Cost   3,206 [3],[12],[13],[14]   3,206 [3],[12],[13],[14]     3,199 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (2) [3],[12],[13],[14]   (2) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Cost   (3) [3],[12],[13],[14]   (3) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: London Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   11,360   11,360                  
Cost [3],[12],[13],[14]   11,360   11,360                  
Investment, Identifier [Axis]: London Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (22)   (22)                  
Cost [3],[12],[13],[14]   (22)   (22)                  
Investment, Identifier [Axis]: Long Term Care Group, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,268 [3],[12],[13]   8,268 [3],[12],[13]     8,464 [6],[8],[9]            
Cost   8,680 [3],[12],[13]   8,680 [3],[12],[13]     8,706 [6],[8],[9]            
Investment, Identifier [Axis]: M-Personal Protection Management GmbH | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,029 [2],[3],[13],[15]   4,029 [2],[3],[13],[15]     4,139 [5],[6],[9],[16]            
Cost   3,790 [2],[3],[13],[15]   3,790 [2],[3],[13],[15]     3,773 [5],[6],[9],[16]            
Investment, Identifier [Axis]: MB Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,763 [3],[13],[14],[17]   3,763 [3],[13],[14],[17]     3,771 [6],[7],[9],[19]            
Cost   3,753 [3],[13],[14],[17]   3,753 [3],[13],[14],[17]     3,766 [6],[7],[9],[19]            
Investment, Identifier [Axis]: MB Purchaser, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   85 [3],[18]   85 [3],[18]     78 [6],[10]            
Cost   68 [3],[18]   68 [3],[18]     68 [6],[10]            
Investment, Identifier [Axis]: MB Purchaser, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (6) [3],[13],[14],[17]   (6) [3],[13],[14],[17]     (8) [6],[7],[9],[19]            
Cost   (7) [3],[13],[14],[17]   (7) [3],[13],[14],[17]     (8) [6],[7],[9],[19]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   5,296 [3],[12],[13]   5,296 [3],[12],[13]     4,829 [6],[7],[8],[9]            
Cost   5,658 [3],[12],[13]   5,658 [3],[12],[13]     5,004 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   4,025 [3],[12],[13]   4,025 [3],[12],[13]     4,236 [6],[7],[8],[9]            
Cost   4,282 [3],[12],[13]   4,282 [3],[12],[13]     4,296 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   435 [3],[18]   435 [3],[18]     706 [6],[10]            
Cost   747 [3],[18]   747 [3],[18]     747 [6],[10]            
Investment, Identifier [Axis]: MIV Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,279 [3],[12],[13],[14]   3,279 [3],[12],[13],[14]     3,024 [6],[7],[8],[9]            
Cost   3,271 [3],[12],[13],[14]   3,271 [3],[12],[13],[14]     3,021 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MIV Buyer, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   96 [3],[18]   96 [3],[18]     102 [6],[10]            
Cost   101 [3],[18]   101 [3],[18]     101 [6],[10]            
Investment, Identifier [Axis]: MIV Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (5) [3],[12],[13],[14]   (5) [3],[12],[13],[14]     174 [6],[7],[8],[9]            
Cost   (5) [3],[12],[13],[14]   (5) [3],[12],[13],[14]     174 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MNS Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             268            
Cost [6],[9],[19]             267            
Investment, Identifier [Axis]: MNS Buyer, Inc. | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value [6],[10]             186            
Cost [6],[10]             77            
Investment, Identifier [Axis]: MSI Express Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,135 [3],[13],[17]   2,135 [3],[13],[17]     2,205 [6],[9],[19]            
Cost   2,198 [3],[13],[17]   2,198 [3],[13],[17]     2,209 [6],[9],[19]            
Investment, Identifier [Axis]: MSI Express Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   1,264 [3],[12],[13],[14]   1,264 [3],[12],[13],[14]     1,291 [6],[7],[8],[9]            
Cost   1,294 [3],[12],[13],[14]   1,294 [3],[12],[13],[14]     1,296 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MVC Automotive Group GmbH | Common Equity Interest                          
Schedule of Investments [Line Items]                          
Fair Value   8,447 [2],[3],[18]   8,447 [2],[3],[18]     14,143 [5],[6],[10],[48],[49]   13,741        
Cost   23,173 [2],[3],[18]   23,173 [2],[3],[18]     23,173 [5],[6],[10],[48],[49]            
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value             0   0        
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   3,087 [2],[3],[50]   3,087 [2],[3],[50]     0            
Cost [2],[3],[50]   3,100   3,100                  
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,716 [2],[3],[13],[15],[50]   1,716 [2],[3],[13],[15],[50]     0            
Cost [2],[3],[13],[15],[50]   1,785   1,785                  
Investment, Identifier [Axis]: MVC Private Equity Fund LP | General Partnership Interest(1,831.4 units)                          
Schedule of Investments [Line Items]                          
Fair Value             0   0        
Investment, Identifier [Axis]: MVC Private Equity Fund LP | Limited Partnership Interest (71,790.4 units)                          
Schedule of Investments [Line Items]                          
Fair Value             0   11        
Investment, Identifier [Axis]: Magnetite XIX, Limited | Subordinated Notes                          
Schedule of Investments [Line Items]                          
Fair Value   4,766 [2],[12],[13]   4,766 [2],[12],[13]     5,043 [5],[8],[9]            
Cost   5,250 [2],[12],[13]   5,250 [2],[12],[13]     5,250 [5],[8],[9]            
Investment, Identifier [Axis]: Maia Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   2,473 [2],[3],[12],[13]   2,473 [2],[3],[12],[13]     2,464 [5],[6],[8],[9]            
Cost   2,467 [2],[3],[12],[13]   2,467 [2],[3],[12],[13]     2,465 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Maia Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   831 [2],[3],[13],[14],[22]   831 [2],[3],[13],[14],[22]     846 [5],[6],[7],[9],[26]            
Cost   834 [2],[3],[13],[14],[22]   834 [2],[3],[13],[14],[22]     843 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Maia Bidco Limited | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (5) [2],[3],[13],[14],[22]   (5) [2],[3],[13],[14],[22]     0 [5],[6],[7],[9],[26]            
Cost   0 [2],[3],[13],[14],[22]   0 [2],[3],[13],[14],[22]     (6) [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   1,992   1,992                  
Cost [3],[12],[13],[14]   1,994   1,994                  
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (7)   (7)                  
Cost [3],[12],[13],[14]   (7)   (7)                  
Investment, Identifier [Axis]: Markerstudy Group Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[22]   4,866   4,866                  
Cost [2],[3],[13],[22]   4,893   4,893                  
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   169 [2],[3],[13],[14],[24]   169 [2],[3],[13],[14],[24]     63 [5],[6],[7],[9],[23]            
Cost   255 [2],[3],[13],[14],[24]   255 [2],[3],[13],[14],[24]     92 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   80 [2],[3],[13],[24]   80 [2],[3],[13],[24]     146 [5],[6],[9],[16]            
Cost   173 [2],[3],[13],[24]   173 [2],[3],[13],[24]     157 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Super Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   84 [2],[3],[13],[15]   84 [2],[3],[13],[15]     166 [5],[6],[9],[16]            
Cost   184 [2],[3],[13],[15]   184 [2],[3],[13],[15]     184 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Matrix Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   1,765   1,765                  
Cost [3],[12],[13],[14]   1,766   1,766                  
Investment, Identifier [Axis]: Matrix Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   49   49                  
Cost [3],[12],[13],[14]   49   49                  
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,703 [3],[12],[13]   1,703 [3],[12],[13]     3,468 [6],[9],[26]            
Cost   1,684 [3],[12],[13]   1,684 [3],[12],[13]     3,416 [6],[9],[26]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   3,533 [3],[13],[22]   3,533 [3],[13],[22]     1,771 [6],[8],[9]            
Cost   3,531 [3],[13],[22]   3,531 [3],[13],[22]     1,750 [6],[8],[9]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 1                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     (8) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 2                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[22]   0 [3],[13],[14],[22]     0 [6],[7],[9],[26]            
Cost   (9) [3],[13],[14],[22]   (9) [3],[13],[14],[22]     (10) [6],[7],[9],[26]            
Investment, Identifier [Axis]: Median B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[9],[26]             9,763            
Cost [5],[9],[26]             9,970            
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [8],[9]             897            
Cost [8],[9]             4,399            
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Second Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [13],[17]   237   237                  
Cost [13],[17]   115   115                  
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Third Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [13],[17]   212   212                  
Cost [13],[17]   109   109                  
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   21 [3],[18]   21 [3],[18]     21 [6],[10]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,004 [3],[12],[13]   4,004 [3],[12],[13]     4,023 [6],[8],[9]            
Cost   3,952 [3],[12],[13]   3,952 [3],[12],[13]     4,059 [6],[8],[9]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   201 [3],[18]   201 [3],[18]     153 [6],[10]            
Cost   184 [3],[18]   184 [3],[18]     184 [6],[10]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   150 [3],[12],[13],[14]   150 [3],[12],[13],[14]     (15) [6],[7],[8],[9]            
Cost   142 [3],[12],[13],[14]   142 [3],[12],[13],[14]     (9) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Mercell Holding AS | Class A Units                          
Schedule of Investments [Line Items]                          
Fair Value   73 [2],[3],[18]   73 [2],[3],[18]     123 [5],[6],[10]            
Cost   111 [2],[3],[18]   111 [2],[3],[18]     111 [5],[6],[10]            
Investment, Identifier [Axis]: Mercell Holding AS | Class B Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Cost   0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Mercell Holding AS | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,991 [2],[3],[13],[14],[51]   2,991 [2],[3],[13],[14],[51]     3,098 [5],[6],[7],[9],[52]            
Cost   3,170 [2],[3],[13],[14],[51]   3,170 [2],[3],[13],[14],[51]     3,163 [5],[6],[7],[9],[52]            
Investment, Identifier [Axis]: Modern Star Holdings Bidco Pty Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[53]             7,420            
Cost [5],[6],[7],[9],[53]             8,170            
Investment, Identifier [Axis]: Momentum Textiles, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,180 [3],[12],[13]   7,180 [3],[12],[13]     7,218 [6],[8],[9]            
Cost   7,185 [3],[12],[13]   7,185 [3],[12],[13]     7,231 [6],[8],[9]            
Investment, Identifier [Axis]: Momentum Textiles, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     (9) [6],[7],[8],[9]            
Cost   (6) [3],[12],[13],[14]   (6) [3],[12],[13],[14]     (7) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Moonlight Bidco Limited | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   204 [2],[3],[18]   204 [2],[3],[18]     202 [5],[6],[10]            
Cost   138 [2],[3],[18]   138 [2],[3],[18]     138 [5],[6],[10]            
Investment, Identifier [Axis]: Moonlight Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,259 [2],[3],[13],[14],[22]   2,259 [2],[3],[13],[14],[22]     1,998 [5],[6],[7],[9],[26]            
Cost   2,195 [2],[3],[13],[14],[22]   2,195 [2],[3],[13],[14],[22]     1,894 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Murphy Midco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,450 [2],[3],[13],[28]   1,450 [2],[3],[13],[28]     1,570 [5],[6],[9],[27]            
Cost   1,728 [2],[3],[13],[28]   1,728 [2],[3],[13],[28]     1,724 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Music Reports, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,812 [3],[12],[13]   6,812 [3],[12],[13]     6,791 [6],[8],[9]            
Cost   6,917 [3],[12],[13]   6,917 [3],[12],[13]     6,900 [6],[8],[9]            
Investment, Identifier [Axis]: NAW Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   14,822 [3],[12],[13],[14]   14,822 [3],[12],[13],[14]     12,816 [6],[7],[8],[9]            
Cost   14,596 [3],[12],[13],[14]   14,596 [3],[12],[13],[14]     12,612 [6],[7],[8],[9]            
Investment, Identifier [Axis]: NAW Buyer LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   666 [3],[18]   666 [3],[18]     595 [6]            
Cost   473 [3],[18]   473 [3],[18]     473 [6]            
Investment, Identifier [Axis]: NAW Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (3) [3],[12],[13],[14]   (3) [3],[12],[13],[14]     (9) [6],[7],[8],[9]            
Cost   (26) [3],[12],[13],[14]   (26) [3],[12],[13],[14]     (29) [6],[7],[8],[9]            
Investment, Identifier [Axis]: NF Holdco, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,713 [3],[12],[13]   5,713 [3],[12],[13]     5,921 [6],[8],[9]            
Cost   6,102 [3],[12],[13]   6,102 [3],[12],[13]     6,102 [6],[8],[9]            
Investment, Identifier [Axis]: NF Holdco, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   115 [3],[18]   115 [3],[18]     224 [6],[10]            
Cost   659 [3],[18]   659 [3],[18]     659 [6],[10]            
Investment, Identifier [Axis]: NF Holdco, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   786 [3],[12],[13],[14]   786 [3],[12],[13],[14]     422 [6],[7],[8],[9]            
Cost   857 [3],[12],[13],[14]   857 [3],[12],[13],[14]     457 [6],[7],[8],[9]            
Investment, Identifier [Axis]: NPM Investments 28 B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,329 [2],[3],[13],[14],[15]   2,329 [2],[3],[13],[14],[15]     2,393 [5],[6],[7],[9],[16]            
Cost   2,009 [2],[3],[13],[14],[15]   2,009 [2],[3],[13],[14],[15]     2,004 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Napa Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,942 [2],[3],[13],[30]   13,942 [2],[3],[13],[30]     13,420 [5],[6],[9],[31]            
Cost   14,369 [2],[3],[13],[30]   14,369 [2],[3],[13],[30]     14,329 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Nationwide Legal Services, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   7,881   7,881                  
Cost [3],[12],[13],[14]   7,882   7,882                  
Investment, Identifier [Axis]: Nationwide Legal Services, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (15)   (15)                  
Cost [3],[12],[13],[14]   (15)   (15)                  
Investment, Identifier [Axis]: NeoxCo | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,734 [2],[3],[13],[24]   2,734 [2],[3],[13],[24]     2,808 [5],[6],[9],[23]            
Cost   2,541 [2],[3],[13],[24]   2,541 [2],[3],[13],[24]     2,535 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Next Holdco, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   21,998 [3],[12],[13]   21,998 [3],[12],[13]     22,055 [6],[8],[9]            
Cost   21,843 [3],[12],[13]   21,843 [3],[12],[13]     21,937 [6],[8],[9]            
Investment, Identifier [Axis]: Next Holdco, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     (3) [6],[7],[8],[9]            
Cost   (6) [3],[12],[13],[14]   (6) [3],[12],[13],[14]     (7) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Northstar Recycling, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,542 [3],[12],[13]   12,542 [3],[12],[13]     12,490 [6],[8],[9]            
Cost   12,429 [3],[12],[13]   12,429 [3],[12],[13]     12,478 [6],[8],[9]            
Investment, Identifier [Axis]: Northstar Recycling, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (32) [6],[7],[8],[9]            
Cost   (31) [3],[12],[13],[14]   (31) [3],[12],[13],[14]     (35) [6],[7],[8],[9]            
Investment, Identifier [Axis]: OAC Holdings I Corp | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,276 [3],[12],[13]   3,276 [3],[12],[13]     3,285 [6],[8],[9]            
Cost   3,249 [3],[12],[13]   3,249 [3],[12],[13]     3,253 [6],[8],[9]            
Investment, Identifier [Axis]: OAC Holdings I Corp | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   783 [3],[12],[13],[14]   783 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   775 [3],[12],[13],[14]   775 [3],[12],[13],[14]     (11) [6],[7],[8],[9]            
Investment, Identifier [Axis]: OG III B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,464 [2],[3],[13],[15]   3,464 [2],[3],[13],[15]     3,589 [5],[6],[9],[16]            
Cost   3,713 [2],[3],[13],[15]   3,713 [2],[3],[13],[15]     3,707 [5],[6],[9],[16]            
Investment, Identifier [Axis]: ORS Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,299 [3],[12],[13]   6,299 [3],[12],[13]     4,905 [6],[8],[9]            
Cost   6,278 [3],[12],[13]   6,278 [3],[12],[13]     4,896 [6],[8],[9]            
Investment, Identifier [Axis]: ORS Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   410   410                  
Cost [3],[12],[13],[14]   409   409                  
Investment, Identifier [Axis]: ORTEC International Newco B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,045 [2],[3],[13],[15]   1,045 [2],[3],[13],[15]     1,074 [5],[6],[9],[16]            
Cost   980 [2],[3],[13],[15]   980 [2],[3],[13],[15]     979 [5],[6],[9],[16]            
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,893 [3],[12],[13],[14]   2,893 [3],[12],[13],[14]     2,883 [6],[7],[9],[19]            
Cost   2,880 [3],[12],[13],[14]   2,880 [3],[12],[13],[14]     2,886 [6],[7],[9],[19]            
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (13) [3],[12],[13],[14]   (13) [3],[12],[13],[14]     (16) [6],[7],[9],[19]            
Cost   (14) [3],[12],[13],[14]   (14) [3],[12],[13],[14]     (16) [6],[7],[9],[19]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   17,971 [3],[12],[13]   17,971 [3],[12],[13]     18,094 [6],[8],[9]            
Cost   18,002 [3],[12],[13]   18,002 [3],[12],[13]     18,059 [6],[8],[9]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   184 [3],[18]   184 [3],[18]     182 [6],[10]            
Cost   174 [3],[18]   174 [3],[18]     174 [6],[10]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   669 [3],[12],[13],[14]   669 [3],[12],[13],[14]     672 [6],[7],[8],[9]            
Cost   674 [3],[12],[13],[14]   674 [3],[12],[13],[14]     669 [6],[7],[8],[9]            
Investment, Identifier [Axis]: OSP Lakeside Intermediate Holdings 2, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,972 [3],[13],[17]   3,972 [3],[13],[17]     4,201 [6],[9],[19]            
Cost   4,187 [3],[13],[17]   4,187 [3],[13],[17]     4,202 [6],[9],[19]            
Investment, Identifier [Axis]: OSP Lakeside Intermediate Holdings 2, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (47) [3],[13],[14],[17]   (47) [3],[13],[14],[17]     (11) [6],[7],[9],[19]            
Cost   (10) [3],[13],[14],[17]   (10) [3],[13],[14],[17]     (11) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value [6],[10]             2,831            
Cost [6],[10]             0            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value [6]             2,438            
Cost [6]             1,562            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Takeback Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6]             2,933            
Cost [6]             2,933            
Investment, Identifier [Axis]: Ocular Therapeutix, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,625 [2],[3],[13],[17]   4,625 [2],[3],[13],[17]     4,826 [5],[6],[9],[19]            
Cost   3,859 [2],[3],[13],[17]   3,859 [2],[3],[13],[17]     3,850 [5],[6],[9],[19]            
Investment, Identifier [Axis]: Oracle Vision Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,774 [2],[3],[13],[28]   2,774 [2],[3],[13],[28]     2,925 [5],[6],[9],[27]            
Cost   3,195 [2],[3],[13],[28]   3,195 [2],[3],[13],[28]     3,188 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Origin Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   339 [2],[3],[13],[15]   339 [2],[3],[13],[15]     345 [5],[6],[9],[16]            
Cost   357 [2],[3],[13],[15]   357 [2],[3],[13],[15]     356 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Origin Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   533 [2],[3],[12],[13]   533 [2],[3],[12],[13]     529 [5],[6],[8],[9]            
Cost   528 [2],[3],[12],[13]   528 [2],[3],[12],[13]     527 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,156 [3],[12],[13],[14]   2,156 [3],[12],[13],[14]     2,345 [6],[7],[8],[9]            
Cost   2,440 [3],[12],[13],[14]   2,440 [3],[12],[13],[14]     2,449 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   170 [3],[12],[13],[14]   170 [3],[12],[13],[14]     (86) [6],[7],[8],[9]            
Cost   347 [3],[12],[13],[14]   347 [3],[12],[13],[14]     (20) [6],[7],[8],[9]            
Investment, Identifier [Axis]: PAS Chassis Holdco LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   14,163   14,163                  
Cost [3],[12],[13]   14,156   14,156                  
Investment, Identifier [Axis]: PDQ.Com Corporation | Class A-2 Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   28 [3],[18]   28 [3],[18]     39 [6],[10]            
Cost   14 [3],[18]   14 [3],[18]     14 [6],[10]            
Investment, Identifier [Axis]: PDQ.Com Corporation | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,049 [3],[12],[13]   13,049 [3],[12],[13]     13,253 [6],[8],[9]            
Cost   13,162 [3],[12],[13]   13,162 [3],[12],[13]     13,236 [6],[8],[9]            
Investment, Identifier [Axis]: PSP Intermediate 4, LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   930 [2],[3],[13],[15]   930 [2],[3],[13],[15]     960 [5],[6],[9],[16]            
Cost   855 [2],[3],[13],[15]   855 [2],[3],[13],[15]     853 [5],[6],[9],[16]            
Investment, Identifier [Axis]: PSP Intermediate 4, LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,404 [2],[3],[12],[13]   1,404 [2],[3],[12],[13]     1,411 [5],[6],[8],[9]            
Cost   1,399 [2],[3],[12],[13]   1,399 [2],[3],[12],[13]     1,397 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Panoche Energy Center LLC | First Lien Senior Secured Bond                          
Schedule of Investments [Line Items]                          
Fair Value   2,709 [3]   2,709 [3]     3,058 [6]            
Cost   2,567 [3]   2,567 [3]     2,887 [6]            
Investment, Identifier [Axis]: Panther Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[30]   4,070   4,070                  
Cost [2],[3],[13],[14],[30]   4,085   4,085                  
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE) | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   2,587 [2],[3],[13],[15]   2,587 [2],[3],[13],[15]     2,537 [5],[6],[9],[16]            
Cost   2,517 [2],[3],[13],[15]   2,517 [2],[3],[13],[15]     2,399 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE) | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,300 [2],[3],[12],[13]   1,300 [2],[3],[12],[13]     1,200 [5],[6],[8],[9]            
Cost   1,300 [2],[3],[12],[13]   1,300 [2],[3],[12],[13]     1,200 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[17]   623   623                  
Cost [3],[13],[17]   616   616                  
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             29            
Cost [6],[9],[19]             29            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             592            
Cost [6],[9],[19]             587            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   205 [3],[18]   205 [3],[18]     227 [6],[10]            
Cost   298 [3],[18]   298 [3],[18]     298 [6],[10]            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   39 [3]   39 [3]     38 [6]            
Cost   13 [3]   13 [3]     13 [6]            
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance) | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             2,115            
Cost [5],[6],[9],[16]             1,959            
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance) | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[8],[9]             2,397            
Cost [5],[6],[8],[9]             2,391            
Investment, Identifier [Axis]: Pepper Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[30]   1,699   1,699                  
Cost [2],[3],[13],[14],[30]   1,745   1,745                  
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class A                          
Schedule of Investments [Line Items]                          
Fair Value   180 [2],[3]   180 [2],[3]     181 [5],[6]            
Cost   182 [2],[3]   182 [2],[3]     182 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class B                          
Schedule of Investments [Line Items]                          
Fair Value   181 [2],[3]   181 [2],[3]     181 [5],[6]            
Cost   182 [2],[3]   182 [2],[3]     182 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class C                          
Schedule of Investments [Line Items]                          
Fair Value   181 [2],[3]   181 [2],[3]     181 [5],[6]            
Cost   182 [2],[3]   182 [2],[3]     182 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class D                          
Schedule of Investments [Line Items]                          
Fair Value   181 [2],[3]   181 [2],[3]     181 [5],[6]            
Cost   182 [2],[3]   182 [2],[3]     182 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class E                          
Schedule of Investments [Line Items]                          
Fair Value   9,137 [2],[3]   9,137 [2],[3]     9,132 [5],[6]            
Cost   9,274 [2],[3]   9,274 [2],[3]     9,274 [5],[6]            
Investment, Identifier [Axis]: Permaconn BidCo Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,839 [2],[3],[13],[30]   2,839 [2],[3],[13],[30]     2,732 [5],[6],[9],[31]            
Cost   2,724 [2],[3],[13],[30]   2,724 [2],[3],[13],[30]     2,719 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Pinion Holdings Limited | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3]   289   289                  
Cost [2],[3]   289   289                  
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   938 [3],[12],[13]   938 [3],[12],[13]     944 [6],[8],[9]            
Cost   933 [3],[12],[13]   933 [3],[12],[13]     938 [6],[8],[9]            
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   1,938 [3]   1,938 [3]     1,974 [6]            
Cost   741 [3]   741 [3]     741 [6]            
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     316 [6],[7],[8],[9]            
Cost   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     307 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Class A Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[35]   0 [3],[18],[35]     0            
Cost [3],[18],[35]   0   0                  
Investment, Identifier [Axis]: Policy Services Company, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   49,896 [3],[12],[13],[35]   49,896 [3],[12],[13],[35]     48,065 [6],[8],[9]            
Cost   55,054 [3],[12],[13],[35]   55,054 [3],[12],[13],[35]     52,856 [6],[8],[9]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class A                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Cost   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class B                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Cost   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class CC                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Cost   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class D                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Cost   0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [5],[6],[10],[11]            
Cost   0 [3],[18]   0 [3],[18]     0 [5],[6],[10],[11]            
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   314 [3],[12],[13],[20]   314 [3],[12],[13],[20]     364 [6],[8],[9],[11],[21]            
Cost   994 [3],[12],[13],[20]   994 [3],[12],[13],[20]     994 [6],[8],[9],[11],[21]            
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,625 [3],[12],[13],[14]   5,625 [3],[12],[13],[14]     4,867 [6],[7],[8],[9]            
Cost   5,671 [3],[12],[13],[14]   5,671 [3],[12],[13],[14]     4,858 [6],[7],[8],[9]            
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (4) [6],[7],[8],[9]            
Cost   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Premium Franchise Brands, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   9,991 [3],[12],[13]   9,991 [3],[12],[13]     10,012 [6],[9],[29]            
Cost   10,037 [3],[12],[13]   10,037 [3],[12],[13]     10,050 [6],[9],[29]            
Investment, Identifier [Axis]: Premium Invest | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   9,661 [2],[3],[13],[14],[15]   9,661 [2],[3],[13],[14],[15]     9,842 [5],[6],[7],[9],[16]            
Cost   8,942 [2],[3],[13],[14],[15]   8,942 [2],[3],[13],[14],[15]     8,919 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Prime Power Solutions, LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   14,700   14,700                  
Cost [3],[12],[13]   14,708   14,708                  
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,640 [3],[13],[17]   7,640 [3],[13],[17]     7,678 [6],[9],[19]            
Cost   7,591 [3],[13],[17]   7,591 [3],[13],[17]     7,618 [6],[9],[19]            
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   331 [3],[18]   331 [3],[18]     249 [6],[10]            
Cost   236 [3],[18]   236 [3],[18]     236 [6],[10]            
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   199 [3],[13],[14],[17]   199 [3],[13],[14],[17]     137 [6],[7],[9],[19]            
Cost   187 [3],[13],[14],[17]   187 [3],[13],[14],[17]     122 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Proceed Legal Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   9,762   9,762                  
Cost [3],[12],[13],[14]   9,743   9,743                  
Investment, Identifier [Axis]: Proceed Legal Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (4)   (4)                  
Cost [3],[12],[13],[14]   (4)   (4)                  
Investment, Identifier [Axis]: Process Equipment, Inc. (ProcessBarron) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,253 [3],[13],[25]   5,253 [3],[13],[25]     5,254 [6],[9],[29]            
Cost   5,250 [3],[13],[25]   5,250 [3],[13],[25]     5,258 [6],[9],[29]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Class A Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value [3]   17   17                  
Cost [3]   17   17                  
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     72 [6],[10]            
Cost   281 [3],[18]   281 [3],[18]     281 [6],[10]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,797 [3],[12],[13]   4,797 [3],[12],[13]     5,022 [6],[8],[9]            
Cost   5,614 [3],[12],[13]   5,614 [3],[12],[13]     5,600 [6],[8],[9]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   351 [3],[12],[13],[14]   351 [3],[12],[13],[14]     896 [6],[8],[9]            
Cost   497 [3],[12],[13],[14]   497 [3],[12],[13],[14]     999 [6],[8],[9]            
Investment, Identifier [Axis]: ProfitOptics, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,577 [3],[13],[17]   1,577 [3],[13],[17]     1,595 [6],[9],[19]            
Cost   1,576 [3],[13],[17]   1,576 [3],[13],[17]     1,583 [6],[9],[19]            
Investment, Identifier [Axis]: ProfitOptics, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   448 [3],[18]   448 [3],[18]     423 [6],[10]            
Cost   161 [3],[18]   161 [3],[18]     161 [6],[10]            
Investment, Identifier [Axis]: ProfitOptics, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (3) [3],[13],[14],[17]   (3) [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Cost   (3) [3],[13],[14],[17]   (3) [3],[13],[14],[17]     (4) [6],[7],[9],[19]            
Investment, Identifier [Axis]: ProfitOptics, LLC | Senior Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   78 [3]   78 [3]     78 [6]            
Cost   81 [3]   81 [3]     81 [6]            
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   1,867   1,867                  
Cost [2],[3],[13],[15]   1,901   1,901                  
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[23]             1,599            
Cost [5],[6],[9],[23]             1,602            
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[23]             320            
Cost [5],[6],[9],[23]             295            
Investment, Identifier [Axis]: Protego Bidco B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   2,239 [2],[3],[13],[15]   2,239 [2],[3],[13],[15]     2,300 [5],[6],[9],[23]            
Cost   2,303 [2],[3],[13],[15]   2,303 [2],[3],[13],[15]     2,299 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Protego Bidco B.V. | Super Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   1,457   1,457                  
Cost [2],[3],[13],[15]   1,416   1,416                  
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,674 [2],[3],[13],[54]   1,674 [2],[3],[13],[54]     1,829 [5],[6],[9],[55]            
Cost   1,799 [2],[3],[13],[54]   1,799 [2],[3],[13],[54]     1,981 [5],[6],[9],[55]            
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[8],[9]             2,799            
Cost [5],[6],[7],[8],[9]             2,791            
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[15]   183   183                  
Cost [2],[3],[13],[15]   189   189                  
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[12],[13],[14]   2,792   2,792                  
Cost [2],[3],[12],[13],[14]   2,792   2,792                  
Investment, Identifier [Axis]: R1 Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,711 [3],[12],[13]   5,711 [3],[12],[13]     5,879 [6],[9],[29]            
Cost   5,927 [3],[12],[13]   5,927 [3],[12],[13]     5,942 [6],[9],[29]            
Investment, Identifier [Axis]: R1 Holdings, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   1,748 [3],[12],[13],[14]   1,748 [3],[12],[13],[14]     1,796 [6],[7],[9],[29]            
Cost   1,823 [3],[12],[13],[14]   1,823 [3],[12],[13],[14]     1,818 [6],[7],[9],[29]            
Investment, Identifier [Axis]: RA Outdoors, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,828 [3],[13],[20],[25],[47]   7,828 [3],[13],[20],[25],[47]     9,785 [6],[9],[11],[21],[29]            
Cost   14,971 [3],[13],[20],[25],[47]   14,971 [3],[13],[20],[25],[47]     14,971 [6],[9],[11],[21],[29]            
Investment, Identifier [Axis]: RA Outdoors, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   749 [3],[13],[20],[25],[47]   749 [3],[13],[20],[25],[47]     919 [6],[9],[11],[21],[29]            
Cost   1,430 [3],[13],[20],[25],[47]   1,430 [3],[13],[20],[25],[47]     1,430 [6],[9],[11],[21],[29]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   5,403 [3],[18]   5,403 [3],[18]     5,403 [6],[10]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,791 [3],[12],[13]   1,791 [3],[12],[13]     2,081 [6],[8],[9]            
Cost   2,912 [3],[12],[13]   2,912 [3],[12],[13]     2,760 [6],[8],[9]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   385 [3],[12],[13],[14]   385 [3],[12],[13],[14]     258 [6],[7],[8],[9]            
Cost   385 [3],[12],[13],[14]   385 [3],[12],[13],[14]     258 [6],[7],[8],[9]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,190 [3],[12],[13]   1,190 [3],[12],[13]     1,112 [6],[8],[9]            
Cost   1,176 [3],[12],[13]   1,176 [3],[12],[13]     1,095 [6],[8],[9]            
Investment, Identifier [Axis]: RKD Group, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,400 [3],[12],[13],[14]   12,400 [3],[12],[13],[14]     12,039 [6],[7],[8],[9]            
Cost   12,367 [3],[12],[13],[14]   12,367 [3],[12],[13],[14]     12,020 [6],[7],[8],[9]            
Investment, Identifier [Axis]: RKD Group, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (8) [3],[12],[13],[14]   (8) [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Cost   (10) [3],[12],[13],[14]   (10) [3],[12],[13],[14]     (11) [6],[7],[8],[9]            
Investment, Identifier [Axis]: ROI Solutions LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,122 [3],[12],[13],[14]   8,122 [3],[12],[13],[14]     9,078 [6],[7],[8],[9]            
Cost   8,925 [3],[12],[13],[14]   8,925 [3],[12],[13],[14]     9,037 [6],[7],[8],[9]            
Investment, Identifier [Axis]: ROI Solutions LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (260) [3],[12],[13],[14]   (260) [3],[12],[13],[14]     (32) [6],[7],[8],[9]            
Cost   (36) [3],[12],[13],[14]   (36) [3],[12],[13],[14]     (41) [6],[7],[8],[9]            
Investment, Identifier [Axis]: RPX Corporation | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   15,489 [3],[13],[17]   15,489 [3],[13],[17]     21,484 [6],[9],[19]            
Cost   15,472 [3],[13],[17]   15,472 [3],[13],[17]     21,435 [6],[9],[19]            
Investment, Identifier [Axis]: RPX Corporation | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (15) [3],[13],[14],[17]   (15) [3],[13],[14],[17]     (30) [6],[7],[9],[19]            
Cost   (16) [3],[13],[14],[17]   (16) [3],[13],[14],[17]     (35) [6],[7],[9],[19]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class A Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Cost   4 [3],[18]   4 [3],[18]     4 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class B Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class C Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   24 [3],[18]   24 [3],[18]     36 [6],[10],[11]            
Cost   450 [3],[18]   450 [3],[18]     450 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   654 [3],[18]   654 [3],[18]     690 [6],[10]            
Cost   533 [3],[18]   533 [3],[18]     533 [6],[10]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,123 [3],[13],[14],[17]   13,123 [3],[13],[14],[17]     12,552 [6],[7],[9],[19]            
Cost   13,030 [3],[13],[14],[17]   13,030 [3],[13],[14],[17]     12,459 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   194 [3],[13],[14],[17]   194 [3],[13],[14],[17]     (19) [6],[7],[9],[19]            
Cost   182 [3],[13],[14],[17]   182 [3],[13],[14],[17]     (32) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Rapid Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,330 [3],[13],[14],[25]   5,330 [3],[13],[14],[25]     4,897 [6],[7],[9],[29]            
Cost   5,328 [3],[13],[14],[25]   5,328 [3],[13],[14],[25]     5,348 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Rapid Buyer LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   530 [3],[18]   530 [3],[18]     377 [6],[10]            
Cost   533 [3],[18]   533 [3],[18]     533 [6],[10]            
Investment, Identifier [Axis]: Rapid Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (10) [3],[13],[14],[25]   (10) [3],[13],[14],[25]     (93) [6],[7],[9],[29]            
Cost   (10) [3],[13],[14],[25]   (10) [3],[13],[14],[25]     (13) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,331 [3],[12],[13],[14]   4,331 [3],[12],[13],[14]     4,058 [6],[7],[8],[9]            
Cost   4,368 [3],[12],[13],[14]   4,368 [3],[12],[13],[14]     4,061 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (10) [3],[12],[13],[14]   (10) [3],[12],[13],[14]     (4) [6],[7],[8],[9]            
Cost   (4) [3],[12],[13],[14]   (4) [3],[12],[13],[14]     (4) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recon Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,513 [3],[12],[13],[14]   1,513 [3],[12],[13],[14]     1,874 [6],[7],[8],[9]            
Cost   1,508 [3],[12],[13],[14]   1,508 [3],[12],[13],[14]     1,876 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recon Buyer LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   123 [3],[18]   123 [3],[18]     116 [6],[10]            
Cost   116 [3],[18]   116 [3],[18]     116 [6],[10]            
Investment, Identifier [Axis]: Recon Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (6) [3],[12],[13],[14]   (6) [3],[12],[13],[14]     (8) [6],[7],[8],[9]            
Cost   (7) [3],[12],[13],[14]   (7) [3],[12],[13],[14]     (7) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recovery Point Systems, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,118 [3],[13],[25]   11,118 [3],[13],[25]     11,176 [6],[9],[29]            
Cost   11,068 [3],[13],[25]   11,068 [3],[13],[25]     11,152 [6],[9],[29]            
Investment, Identifier [Axis]: Recovery Point Systems, Inc. | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   112 [3],[18]   112 [3],[18]     103 [6],[10]            
Cost   187 [3],[18]   187 [3],[18]     187 [6],[10]            
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,648 [3],[12],[13]   4,648 [3],[12],[13]     4,609 [6],[8],[9]            
Cost   4,620 [3],[12],[13]   4,620 [3],[12],[13]     4,622 [6],[8],[9]            
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   229 [3],[18]   229 [3],[18]     160 [6],[10]            
Cost   202 [3],[18]   202 [3],[18]     202 [6],[10]            
Investment, Identifier [Axis]: Resolute Investment Managers, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Riedel Beheer B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,371 [2],[3],[13],[15]   2,371 [2],[3],[13],[15]     2,146 [5],[6],[9],[16]            
Cost   2,279 [2],[3],[13],[15]   2,279 [2],[3],[13],[15]     2,274 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Rocade Holdings LLC | Common LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   4,687 [3],[35]   4,687 [3],[35]     3,596 [6],[37]   243        
Cost   0 [3],[35]   0 [3],[35]     0 [6],[37]            
Investment, Identifier [Axis]: Rocade Holdings LLC | Preferred LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   89,041 [3],[12],[35]   89,041 [3],[12],[35]     89,450 [6],[7],[8],[37]   83,000        
Cost   89,041 [3],[12],[35]   89,041 [3],[12],[35]     89,452 [6],[7],[8],[37]            
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Secured Loan                          
Schedule of Investments [Line Items]                          
Fair Value               $ 10,000          
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Secured Loan | Funded                          
Schedule of Investments [Line Items]                          
Fair Value   12,200   12,200     2,900            
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,930 [3],[12],[13],[14],[35]   11,930 [3],[12],[13],[14],[35]     2,667 [6],[7],[8],[9],[37]   0        
Cost   11,952 [3],[12],[13],[14],[35]   11,952 [3],[12],[13],[14],[35]     2,670 [6],[7],[8],[9],[37]            
Investment, Identifier [Axis]: Rock Labor LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,438 [3],[13],[17]   6,438 [3],[13],[17]     6,471 [6],[9],[19]            
Cost   6,319 [3],[13],[17]   6,319 [3],[13],[17]     6,335 [6],[9],[19]            
Investment, Identifier [Axis]: Rock Labor LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   1,057 [3],[18]   1,057 [3],[18]     1,380 [6],[10]            
Cost   1,252 [3],[18]   1,252 [3],[18]     1,252 [6],[10]            
Investment, Identifier [Axis]: Rock Labor LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Cost   (18) [3],[13],[14],[17]   (18) [3],[13],[14],[17]     (21) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Ruby Bidco Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,729 [2],[3],[13],[14],[30]   1,729 [2],[3],[13],[14],[30]     1,654 [5],[6],[7],[9],[31]            
Cost   1,661 [2],[3],[13],[14],[30]   1,661 [2],[3],[13],[14],[30]     1,655 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: SBP Holdings LP | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,584 [3],[13],[14],[17]   8,584 [3],[13],[14],[17]     8,615 [6],[7],[9],[19]            
Cost   8,434 [3],[13],[14],[17]   8,434 [3],[13],[14],[17]     8,438 [6],[7],[9],[19]            
Investment, Identifier [Axis]: SBP Holdings LP | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     (3) [6],[7],[9],[19]            
Cost   (24) [3],[13],[14],[17]   (24) [3],[13],[14],[17]     (31) [6],[7],[9],[19]            
Investment, Identifier [Axis]: SCP CDH Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,295 [3],[12],[13],[14]   8,295 [3],[12],[13],[14]     6,885 [6],[7],[8],[9]            
Cost   8,286 [3],[12],[13],[14]   8,286 [3],[12],[13],[14]     6,885 [6],[7],[8],[9]            
Investment, Identifier [Axis]: SCP CDH Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (8) [3],[12],[13],[14]   (8) [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Cost   (9) [3],[12],[13],[14]   (9) [3],[12],[13],[14]     (10) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,007 [3],[12],[13]   2,007 [3],[12],[13]     2,022 [6],[8],[9]            
Cost   2,002 [3],[12],[13]   2,002 [3],[12],[13]     2,010 [6],[8],[9]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   44 [3],[18]   44 [3],[18]     53 [6],[10]            
Cost   53 [3],[18]   53 [3],[18]     53 [6],[10]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   84 [3],[12],[13],[14]   84 [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Cost   83 [3],[12],[13],[14]   83 [3],[12],[13],[14]     (2) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   249 [3],[18]   249 [3],[18]     309 [6],[10]            
Cost   287 [3],[18]   287 [3],[18]     281 [6],[10]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,423 [3],[12],[13],[14]   7,423 [3],[12],[13],[14]     7,374 [6],[7],[8],[9]            
Cost   7,546 [3],[12],[13],[14]   7,546 [3],[12],[13],[14]     7,327 [6],[7],[8],[9]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   263 [3],[12],[13],[14]   263 [3],[12],[13],[14]     (12) [6],[7],[8],[9]            
Cost   281 [3],[12],[13],[14]   281 [3],[12],[13],[14]     (18) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SRS Acquiom Holdings LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   4,400   4,400                  
Cost [3],[12],[13]   4,397   4,397                  
Investment, Identifier [Axis]: SRS Acquiom Holdings LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (8)   (8)                  
Cost [3],[12],[13],[14]   (9)   (9)                  
Investment, Identifier [Axis]: SSCP Pegasus Midco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,715 [2],[3],[13],[14],[22]   1,715 [2],[3],[13],[14],[22]     7,081 [5],[6],[9],[26]            
Cost   1,722 [2],[3],[13],[14],[22]   1,722 [2],[3],[13],[14],[22]     6,776 [5],[6],[9],[26]            
Investment, Identifier [Axis]: SSCP Spring Bidco 3 Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,013 [2],[3],[13],[28]   1,013 [2],[3],[13],[28]     1,028 [5],[6],[9],[27]            
Cost   941 [2],[3],[13],[28]   941 [2],[3],[13],[28]     939 [5],[6],[9],[27]            
Investment, Identifier [Axis]: SVI International LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             639            
Cost [6],[8],[9]             630            
Investment, Identifier [Axis]: SVI International LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   356 [3]   356 [3]     378 [6]            
Cost   208 [3]   208 [3]     208 [6]            
Investment, Identifier [Axis]: SVI International LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             0            
Cost [6],[7],[8],[9]             (1)            
Investment, Identifier [Axis]: Saab Purchaser, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,423 [3],[12],[13]   13,423 [3],[12],[13]     13,505 [6],[8],[9]            
Cost   13,449 [3],[12],[13]   13,449 [3],[12],[13]     13,509 [6],[8],[9]            
Investment, Identifier [Axis]: Saab Purchaser, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (24) [3],[12],[13],[14]   (24) [3],[12],[13],[14]     (22) [6],[7],[8],[9]            
Cost   (18) [3],[12],[13],[14]   (18) [3],[12],[13],[14]     (20) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Safety Products Holdings, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,709 [3],[12],[13]   8,709 [3],[12],[13]     9,422 [6],[8],[9]            
Cost   8,698 [3],[12],[13]   8,698 [3],[12],[13]     9,396 [6],[8],[9]            
Investment, Identifier [Axis]: Safety Products Holdings, LLC | Preferred Stock                          
Schedule of Investments [Line Items]                          
Fair Value   602 [3],[18]   602 [3],[18]     500 [6],[10]            
Cost   380 [3],[18]   380 [3],[18]     380 [6],[10]            
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   5,624 [2],[3],[13],[14],[15]   5,624 [2],[3],[13],[14],[15]     4,258 [5],[6],[7],[9],[16]            
Cost   5,278 [2],[3],[13],[14],[15]   5,278 [2],[3],[13],[14],[15]     3,753 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   3,902 [2],[3],[13],[56]   3,902 [2],[3],[13],[56]     3,275 [5],[6],[9],[57]            
Cost   3,477 [2],[3],[13],[56]   3,477 [2],[3],[13],[56]     2,786 [5],[6],[9],[57]            
Investment, Identifier [Axis]: Sansidor BV | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,048 [2],[3],[13],[15]   1,048 [2],[3],[13],[15]     1,059 [5],[6],[9],[16]            
Cost   1,022 [2],[3],[13],[15]   1,022 [2],[3],[13],[15]     1,018 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[16]             1,793            
Cost [5],[6],[7],[9],[16]             1,774            
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[15]   1,767   1,767                  
Cost [2],[3],[13],[14],[15]   1,779   1,779                  
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[12],[13]   44   44                  
Cost [2],[3],[12],[13]   45   45                  
Investment, Identifier [Axis]: Scaled Agile, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   796 [3],[13],[20],[25]   796 [3],[13],[20],[25]     1,558 [6],[8],[9]            
Cost   1,822 [3],[13],[20],[25]   1,822 [3],[13],[20],[25]     1,817 [6],[8],[9]            
Investment, Identifier [Axis]: Scaled Agile, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   152 [3],[13],[20],[25]   152 [3],[13],[20],[25]     294 [6],[8],[9]            
Cost   347 [3],[13],[20],[25]   347 [3],[13],[20],[25]     343 [6],[8],[9]            
Investment, Identifier [Axis]: Scout Bidco B.V. | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   3,525 [2],[3],[13],[24]   3,525 [2],[3],[13],[24]     3,456 [5],[6],[9],[23]            
Cost   3,381 [2],[3],[13],[24]   3,381 [2],[3],[13],[24]     3,374 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Scout Bidco B.V. | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   428 [2],[3],[13],[25]   428 [2],[3],[13],[25]     408 [5],[6],[9],[29]            
Cost   443 [2],[3],[13],[25]   443 [2],[3],[13],[25]     443 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Scout Bidco B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   403 [2],[3],[13],[14],[15]   403 [2],[3],[13],[14],[15]     364 [5],[6],[7],[9],[23]            
Cost   445 [2],[3],[13],[14],[15]   445 [2],[3],[13],[14],[15]     443 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Screenvision, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   5,079 [3],[12],[13]   5,079 [3],[12],[13]     5,095 [6],[8],[9]            
Cost   5,076 [3],[12],[13]   5,076 [3],[12],[13]     5,092 [6],[8],[9]            
Investment, Identifier [Axis]: Screenvision, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (9) [3],[12],[13],[14]   (9) [3],[12],[13],[14]     (11) [6],[7],[8],[9]            
Cost   (9) [3],[12],[13],[14]   (9) [3],[12],[13],[14]     (11) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Screenvision, LLC | Second Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   32,502 [3],[12],[13]   32,502 [3],[12],[13]     32,534 [6],[8],[9]            
Cost   32,432 [3],[12],[13]   32,432 [3],[12],[13]     32,487 [6],[8],[9]            
Investment, Identifier [Axis]: Security Holdings B.V | Bridge Loan                          
Schedule of Investments [Line Items]                          
Fair Value             6,997   6,655        
Investment, Identifier [Axis]: Security Holdings B.V | Common Stock Series A                          
Schedule of Investments [Line Items]                          
Fair Value             436   399        
Investment, Identifier [Axis]: Security Holdings B.V | Common Stock Series B                          
Schedule of Investments [Line Items]                          
Fair Value             40,702   37,296        
Investment, Identifier [Axis]: Security Holdings B.V | Senior Unsecured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value             2,909   2,293        
Investment, Identifier [Axis]: Security Holdings B.V | Senior Unsecured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value             11,565   11,191        
Investment, Identifier [Axis]: Security Holdings B.V. | Bridge Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,173 [2],[3],[50]   7,173 [2],[3],[50]     6,997 [5],[6],[48],[49]            
Cost   7,173 [2],[3],[50]   7,173 [2],[3],[50]     6,997 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Common Stock Series A                          
Schedule of Investments [Line Items]                          
Fair Value   447 [2],[3],[18]   447 [2],[3],[18]     436 [5],[6],[10],[48],[49]            
Cost   560 [2],[3],[18]   560 [2],[3],[18]     560 [5],[6],[10],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Common Stock Series B                          
Schedule of Investments [Line Items]                          
Fair Value   41,741 [2],[3],[18]   41,741 [2],[3],[18]     40,702 [5],[6],[48],[49]            
Cost   35,192 [2],[3],[18]   35,192 [2],[3],[18]     35,192 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   10,984 [2],[3],[14],[50]   10,984 [2],[3],[14],[50]     6,225 [5],[6],[7],[48],[49]            
Cost   10,988 [2],[3],[14],[50]   10,988 [2],[3],[14],[50]     5,814 [5],[6],[7],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Senior Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,747 [2],[3],[50]   11,747 [2],[3],[50]     11,565 [5],[6],[48],[49]            
Cost   11,747 [2],[3],[50]   11,747 [2],[3],[50]     11,566 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Senior Unsecured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,049 [2],[3],[50]   3,049 [2],[3],[50]     2,909 [5],[6],[48],[49]            
Cost   3,045 [2],[3],[50]   3,045 [2],[3],[50]     2,826 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V| Revolver                          
Schedule of Investments [Line Items]                          
Fair Value             6,225   5,333        
Investment, Identifier [Axis]: Selenium Designated Activity Company | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,121 [2],[3],[13],[24]   3,121 [2],[3],[13],[24]     3,163 [5],[6],[9],[16]            
Cost   2,914 [2],[3],[13],[24]   2,914 [2],[3],[13],[24]     2,909 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Serta Simmons Bedding LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   855 [18]   855 [18]     1,009 [10]            
Cost   1,630 [18]   1,630 [18]     1,630 [10]            
Investment, Identifier [Axis]: Shelf Bidco Ltd | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   4,692 [2],[3],[18]   4,692 [2],[3],[18]     4,704 [5],[6],[10],[11]            
Cost   1,200 [2],[3],[18]   1,200 [2],[3],[18]     1,200 [5],[6],[10],[11]            
Investment, Identifier [Axis]: Shelf Bidco Ltd | Second Out Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,986 [2],[3],[12],[13]   11,986 [2],[3],[12],[13]     12,042 [5],[6],[8],[9]            
Cost   11,982 [2],[3],[12],[13]   11,982 [2],[3],[12],[13]     12,040 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC | 89.01% Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[18],[35],[45]   0 [2],[18],[35],[45]     16,404 [5],[11],[37],[46]            
Cost   11,532 [2],[18],[35],[45]   11,532 [2],[18],[35],[45]     27,969 [5],[11],[37],[46]            
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC, Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value             16,404   41,453        
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV LLC (Sierra JV)                          
Schedule of Investments [Line Items]                          
Total contributed capital   110,100   110,100                  
Investment, Identifier [Axis]: Sinari Invest | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,717 [2],[3],[13],[14],[15]   1,717 [2],[3],[13],[14],[15]     1,872 [5],[6],[7],[9],[16]            
Cost   1,956 [2],[3],[13],[14],[15]   1,956 [2],[3],[13],[14],[15]     1,951 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Sisu Acquisitionco., Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   7,117 [3],[12],[13]   7,117 [3],[12],[13]     7,176 [6],[8],[9]            
Cost   7,168 [3],[12],[13]   7,168 [3],[12],[13]     7,195 [6],[8],[9]            
Investment, Identifier [Axis]: Skyvault Holdings LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   16,143 [3],[35]   16,143 [3],[35]     16,020 [6],[7],[37]   3,586        
Cost   16,144 [3],[35]   16,144 [3],[35]     16,021 [6],[7],[37]            
Investment, Identifier [Axis]: Skyvault Holdings LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   5,003 [3],[18],[35]   5,003 [3],[18],[35]     5,339 [6],[7],[10],[37]   1,195        
Cost   3,250 [3],[18],[35]   3,250 [3],[18],[35]     5,349 [6],[7],[10],[37]            
Investment, Identifier [Axis]: SmartShift Group, Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   562 [3],[18]   562 [3],[18]     594 [6],[10]            
Cost   275 [3],[18]   275 [3],[18]     275 [6],[10]            
Investment, Identifier [Axis]: SmartShift Group, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   12,781 [3],[13],[25]   12,781 [3],[13],[25]     12,814 [6],[9],[29]            
Cost   12,590 [3],[13],[25]   12,590 [3],[13],[25]     12,597 [6],[9],[29]            
Investment, Identifier [Axis]: SmartShift Group, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     0 [6],[7],[9],[29]            
Cost   (22) [3],[13],[14],[25]   (22) [3],[13],[14],[25]     (26) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Smile Brands Group Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,193 [3],[12],[13]   4,193 [3],[12],[13]     4,577 [6],[8],[9]            
Cost   5,321 [3],[12],[13]   5,321 [3],[12],[13]     5,323 [6],[8],[9]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | Common Equity                          
Schedule of Investments [Line Items]                          
Fair Value   248 [3],[18]   248 [3],[18]     269 [6],[10]            
Cost   516 [3],[18]   516 [3],[18]     516 [6],[10]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   14,601 [3],[12],[13]   14,601 [3],[12],[13]     14,798 [6],[8],[9]            
Cost   14,879 [3],[12],[13]   14,879 [3],[12],[13]     14,930 [6],[8],[9]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   765 [3],[12],[13],[14]   765 [3],[12],[13],[14]     814 [6],[7],[8],[9]            
Cost   810 [3],[12],[13],[14]   810 [3],[12],[13],[14]     840 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [8],[9]             1,844            
Cost [8],[9]             2,838            
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [12],[13]   783   783                  
Cost [12],[13]   631   631                  
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [12],[13]   1,101   1,101                  
Cost [12],[13]   2,833   2,833                  
Investment, Identifier [Axis]: Sound Point CLO XX, Ltd. | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[10],[11]             21            
Cost [5],[10],[11]             1,389            
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,618 [3],[12],[13]   2,618 [3],[12],[13]     2,655 [6],[8],[9]            
Cost   2,607 [3],[12],[13]   2,607 [3],[12],[13]     2,651 [6],[8],[9]            
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.) | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Cost   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     (1) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Spatial Business Systems LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             7,218            
Cost [6],[8],[9]             7,198            
Investment, Identifier [Axis]: Spatial Business Systems LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[8],[9]             (4)            
Cost [6],[7],[8],[9]             (5)            
Investment, Identifier [Axis]: Stage 3 Holdco LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   2,886   2,886                  
Cost [3],[13],[14],[17]   2,886   2,886                  
Investment, Identifier [Axis]: Stage 3 Holdco LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   (7)   (7)                  
Cost [3],[13],[14],[17]   (7)   (7)                  
Investment, Identifier [Axis]: Starnmeer B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,480 [2],[3],[13],[25]   2,480 [2],[3],[13],[25]     2,475 [5],[6],[9],[29]            
Cost   2,493 [2],[3],[13],[25]   2,493 [2],[3],[13],[25]     2,490 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Sunrise Acquisition Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,598 [2],[3],[13],[14],[22]   2,598 [2],[3],[13],[14],[22]     1,875 [5],[6],[7],[9],[26]            
Cost   2,566 [2],[3],[13],[14],[22]   2,566 [2],[3],[13],[14],[22]     1,826 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Superjet Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,505 [3],[12],[13]   4,505 [3],[12],[13]     4,249 [6],[7],[8],[9]            
Cost   4,538 [3],[12],[13]   4,538 [3],[12],[13]     4,244 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Superjet Buyer, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (22) [3],[12],[13],[14]   (22) [3],[12],[13],[14]     (13) [6],[7],[8],[9]            
Cost   (10) [3],[12],[13],[14]   (10) [3],[12],[13],[14]     (13) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   192   192                  
Cost [3],[18]   192   192                  
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[25]   7,100   7,100                  
Cost [3],[13],[14],[25]   7,104   7,104                  
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[25]   (18)   (18)                  
Cost [3],[13],[14],[25]   (17)   (17)                  
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,280 [3],[13],[14],[17]   4,280 [3],[13],[14],[17]     1,977 [6],[7],[9],[19]            
Cost   4,265 [3],[13],[14],[17]   4,265 [3],[13],[14],[17]     1,960 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Cost   (3) [3],[13],[14],[17]   (3) [3],[13],[14],[17]     (4) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Syniverse Holdings, Inc. | Series A Preferred Equity                          
Schedule of Investments [Line Items]                          
Fair Value   10,303 [3]   10,303 [3]     11,439 [6]            
Cost   12,225 [3]   12,225 [3]     11,497 [6]            
Investment, Identifier [Axis]: Syntax Midco 2 Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,602 [3],[13],[14],[17]   2,602 [3],[13],[14],[17]     2,599 [6],[7],[9],[19]            
Cost   2,596 [3],[13],[14],[17]   2,596 [3],[13],[14],[17]     2,600 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Syntax Midco 2 Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   493 [3],[13],[14],[17]   493 [3],[13],[14],[17]     797 [6],[7],[9],[19]            
Cost   489 [3],[13],[14],[17]   489 [3],[13],[14],[17]     798 [6],[7],[9],[19]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   78 [3],[18]   78 [3],[18]     56 [6],[10]            
Cost   52 [3],[18]   52 [3],[18]     47 [6],[10]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,011 [3],[12],[13],[14]   1,011 [3],[12],[13],[14]     1,012 [6],[7],[8],[9]            
Cost   1,006 [3],[12],[13],[14]   1,006 [3],[12],[13],[14]     1,010 [6],[7],[8],[9]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (3) [3],[12],[13],[14]   (3) [3],[12],[13],[14]     (4) [6],[7],[8],[9]            
Cost   (4) [3],[12],[13],[14]   (4) [3],[12],[13],[14]     (4) [6],[7],[8],[9]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,518 [3]   2,518 [3]     2,226 [6]            
Cost   2,509 [3]   2,509 [3]     2,218 [6]            
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   78 [3],[18]   78 [3],[18]     93 [6],[10]            
Cost   50 [3],[18]   50 [3],[18]     50 [6],[10]            
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,339 [3],[13],[25]   3,339 [3],[13],[25]     3,148 [6],[29]            
Cost   3,327 [3],[13],[25]   3,327 [3],[13],[25]     3,133 [6],[29]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   9,485 [3],[13],[17]   9,485 [3],[13],[17]     9,492 [6],[9],[19]            
Cost   9,472 [3],[13],[17]   9,472 [3],[13],[17]     9,477 [6],[9],[19]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   438 [3]   438 [3]     523 [6],[10]            
Cost   364 [3]   364 [3]     364 [6],[10]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   198 [3],[13],[14],[17]   198 [3],[13],[14],[17]     (16) [6],[7],[9],[19]            
Cost   197 [3],[13],[14],[17]   197 [3],[13],[14],[17]     (17) [6],[7],[9],[19]            
Investment, Identifier [Axis]: THG Acquisition, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   6,419 [3],[13],[14],[17]   6,419 [3],[13],[14],[17]     5,401 [6],[7],[9],[19]            
Cost   6,395 [3],[13],[14],[17]   6,395 [3],[13],[14],[17]     5,384 [6],[7],[9],[19]            
Investment, Identifier [Axis]: THG Acquisition, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   365 [3],[13],[14],[17]   365 [3],[13],[14],[17]     190 [6],[7],[9],[19]            
Cost   360 [3],[13],[14],[17]   360 [3],[13],[14],[17]     186 [6],[7],[9],[19]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   20,112 [3],[12],[13],[14]   20,112 [3],[12],[13],[14]     16,833 [6],[7],[8],[9]            
Cost   19,968 [3],[12],[13],[14]   19,968 [3],[12],[13],[14]     16,620 [6],[7],[8],[9]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   40 [3],[18]   40 [3],[18]     36 [6],[10]            
Cost   5 [3],[18]   5 [3],[18]     5 [6],[10]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (1) [3],[12],[13],[14]   (1) [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Cost   (5) [3],[12],[13],[14]   (5) [3],[12],[13],[14]     (5) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Tallman Equipment Co., Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   6,360   6,360                  
Cost [3],[12],[13],[14]   6,362   6,362                  
Investment, Identifier [Axis]: Tallman Equipment Co., Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13],[14]   (15)   (15)                  
Cost [3],[12],[13],[14]   (14)   (14)                  
Investment, Identifier [Axis]: Tank Holding Corp | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   7,337 [3],[13],[17]   7,337 [3],[13],[17]     7,743 [6],[9],[19]            
Cost   7,719 [3],[13],[17]   7,719 [3],[13],[17]     7,743 [6],[9],[19]            
Investment, Identifier [Axis]: Tank Holding Corp | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   2,835 [3],[13],[17]   2,835 [3],[13],[17]     2,985 [6],[9],[19]            
Cost   2,957 [3],[13],[17]   2,957 [3],[13],[17]     2,963 [6],[9],[19]            
Investment, Identifier [Axis]: Tank Holding Corp | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   52 [3],[13],[14],[17]   52 [3],[13],[14],[17]     (9) [6],[7],[9],[19]            
Cost   96 [3],[13],[14],[17]   96 [3],[13],[14],[17]     (8) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Tanqueray Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,780 [2],[3],[13],[22]   1,780 [2],[3],[13],[22]     1,779 [5],[6],[7],[9],[26]            
Cost   1,534 [2],[3],[13],[22]   1,534 [2],[3],[13],[22]     1,515 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Team Air Distributing, LLC | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     212 [6],[10]            
Cost   523 [3],[18]   523 [3],[18]     523 [6],[10]            
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 1                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   48   48                  
Cost [3],[18]   48   48                  
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 2                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   0   0                  
Cost [3],[18]   93   93                  
Investment, Identifier [Axis]: Team Air Distributing, LLC | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   737 [3],[20]   737 [3],[20]     717 [6]            
Cost   803 [3],[20]   803 [3],[20]     745 [6]            
Investment, Identifier [Axis]: Technology Service Stream BidCo Pty Ltd | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   993 [2],[3],[13],[14],[30]   993 [2],[3],[13],[14],[30]     821 [5],[6],[7],[9],[31]            
Cost   948 [2],[3],[13],[14],[30]   948 [2],[3],[13],[14],[30]     809 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Techone B.V. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[9],[16]             4,114            
Cost [5],[6],[9],[16]             3,831            
Investment, Identifier [Axis]: Techone B.V. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [5],[6],[7],[9],[16]             (2)            
Cost [5],[6],[7],[9],[16]             (23)            
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   9,139 [3],[12],[13],[14]   9,139 [3],[12],[13],[14]     7,507 [6],[7],[8],[9]            
Cost   9,106 [3],[12],[13],[14]   9,106 [3],[12],[13],[14]     7,457 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (16) [3],[12],[13],[14]   (16) [3],[12],[13],[14]     (17) [6],[7],[8],[9]            
Cost   (12) [3],[12],[13],[14]   (12) [3],[12],[13],[14]     (17) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Terrybear, Inc. | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   239 [3],[18]   239 [3],[18]     239 [6],[10]            
Investment, Identifier [Axis]: Terrybear, Inc. | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   166 [3],[20]   166 [3],[20]     269 [6]            
Cost   297 [3],[20]   297 [3],[20]     295 [6]            
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   8,130 [3],[13],[14],[17]   8,130 [3],[13],[14],[17]     7,768 [6],[7],[9],[19]            
Cost   8,120 [3],[13],[14],[17]   8,120 [3],[13],[14],[17]     7,765 [6],[7],[9],[19]            
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC) | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (14) [3],[13],[14],[17]   (14) [3],[13],[14],[17]     (18) [6],[7],[9],[19]            
Cost   (12) [3],[13],[14],[17]   (12) [3],[13],[14],[17]     (16) [6],[7],[9],[19]            
Investment, Identifier [Axis]: The Octave Music Group, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   53 [12],[13]   53 [12],[13]     58 [8],[9]            
Cost   59 [12],[13]   59 [12],[13]     60 [8],[9]            
Investment, Identifier [Axis]: The Octave Music Group, Inc. | Partnership Equity                          
Schedule of Investments [Line Items]                          
Fair Value   1,597 [3],[18]   1,597 [3],[18]     1,956 [6],[10]            
Cost   677 [3],[18]   677 [3],[18]     677 [6],[10]            
Investment, Identifier [Axis]: Thompson Rivers LLC                          
Schedule of Investments [Line Items]                          
Total contributed capital                         $ 75,000
Investment, Identifier [Axis]: Thompson Rivers LLC | 16.0% Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value   2,710 [18],[35],[45]   2,710 [18],[35],[45]     4,271 [10],[37],[46]            
Cost   18,424 [18],[35],[45]   18,424 [18],[35],[45]     20,021 [10],[37],[46]            
Investment, Identifier [Axis]: Thompson Rivers LLC | Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value             4,271   7,208        
Investment, Identifier [Axis]: Thompsonn Rivers LLC                          
Schedule of Investments [Line Items]                          
Total contributed capital   79,411   79,411     79,411            
Investment, Identifier [Axis]: Transportation Insight, LLC | Class A Common Units                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   0   0                  
Cost [3],[18]   0   0                  
Investment, Identifier [Axis]: Transportation Insight, LLC | Class A Preferred Units                          
Schedule of Investments [Line Items]                          
Fair Value [3],[18]   3,688   3,688                  
Cost [3],[18]   3,099   3,099                  
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[12],[13]   4,105   4,105                  
Cost [3],[12],[13]   4,105   4,105                  
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             6,876            
Cost [6],[9],[19]             11,211            
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             26            
Cost [6],[9],[19]             26            
Investment, Identifier [Axis]: Transportation Insight, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   641 [3],[12],[13],[14]   641 [3],[12],[13],[14]     0 [6],[7],[9],[19]            
Cost   584 [3],[12],[13],[14]   584 [3],[12],[13],[14]     (39) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Trident Maritime Systems, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   10,519 [3],[12],[13]   10,519 [3],[12],[13]     12,583 [6],[8],[9]            
Cost   12,205 [3],[12],[13]   12,205 [3],[12],[13]     14,332 [6],[8],[9]            
Investment, Identifier [Axis]: Trintech, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[9],[19]             6,798            
Cost [6],[9],[19]             6,687            
Investment, Identifier [Axis]: Trintech, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [6],[7],[9],[19]             151            
Cost [6],[7],[9],[19]             142            
Investment, Identifier [Axis]: Turbo Buyer, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [6],[8],[9]             8,008            
Cost [6],[8],[9]             8,095            
Investment, Identifier [Axis]: Turnberry Solutions, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,717 [3],[13],[17]   4,717 [3],[13],[17]     4,824 [6],[9],[19]            
Cost   4,795 [3],[13],[17]   4,795 [3],[13],[17]     4,810 [6],[9],[19]            
Investment, Identifier [Axis]: UBC Ledgers Holding AB | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   749 [2],[3],[13],[15]   749 [2],[3],[13],[15]     769 [5],[6],[9],[16]            
Cost   709 [2],[3],[13],[15]   709 [2],[3],[13],[15]     709 [5],[6],[9],[16]            
Investment, Identifier [Axis]: UBC Ledgers Holding AB | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   1,656 [2],[3],[13],[14],[58]   1,656 [2],[3],[13],[14],[58]     1,738 [5],[6],[7],[9],[59]            
Cost   1,497 [2],[3],[13],[14],[58]   1,497 [2],[3],[13],[14],[58]     1,494 [5],[6],[7],[9],[59]            
Investment, Identifier [Axis]: UHY Advisors, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,297 [3],[12],[13],[14]   13,297 [3],[12],[13],[14]     8,295 [6],[7],[8],[9]            
Cost   13,220 [3],[12],[13],[14]   13,220 [3],[12],[13],[14]     8,190 [6],[7],[8],[9]            
Investment, Identifier [Axis]: UHY Advisors, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   740 [3],[12],[13],[14]   740 [3],[12],[13],[14]     1,013 [6],[7],[8],[9]            
Cost   724 [3],[12],[13],[14]   724 [3],[12],[13],[14]     991 [6],[7],[8],[9]            
Investment, Identifier [Axis]: UKFast Leaders Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,949 [2],[3],[13],[22]   11,949 [2],[3],[13],[22]     12,323 [5],[6],[9],[26]            
Cost   11,945 [2],[3],[13],[22]   11,945 [2],[3],[13],[22]     11,915 [5],[6],[9],[26]            
Investment, Identifier [Axis]: UNA 658 Equity Management GmbH | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [2],[3],[13],[14],[15]   1,281   1,281                  
Cost [2],[3],[13],[14],[15]   1,305   1,305                  
Investment, Identifier [Axis]: US Bank National Association Series 2025-1 | Structured Note - Class R                          
Schedule of Investments [Line Items]                          
Fair Value   3,428 [2],[3],[12],[13]   3,428 [2],[3],[12],[13]     4,965 [5],[6],[8],[9]            
Cost   3,361 [2],[3],[12],[13]   3,361 [2],[3],[12],[13]     4,844 [5],[6],[8],[9]            
Investment, Identifier [Axis]: US Bank National Association Series 2025-2 | Structured Note - Class R                          
Schedule of Investments [Line Items]                          
Fair Value   3,462 [2],[13],[17]   3,462 [2],[13],[17]     4,594 [5],[9],[19]            
Cost   3,431 [2],[13],[17]   3,431 [2],[13],[17]     4,594 [5],[9],[19]            
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   17,745 [3],[13],[17]   17,745 [3],[13],[17]     17,906 [6],[9],[19]            
Cost   17,791 [3],[13],[17]   17,791 [3],[13],[17]     17,856 [6],[9],[19]            
Investment, Identifier [Axis]: Union Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,053 [2],[3],[13],[28]   1,053 [2],[3],[13],[28]     1,049 [5],[6],[9],[27]            
Cost   959 [2],[3],[13],[28]   959 [2],[3],[13],[28]     957 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Unither (Uniholding) | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   648 [2],[3],[13],[14],[15]   648 [2],[3],[13],[14],[15]     471 [5],[6],[7],[9],[16]            
Cost   608 [2],[3],[13],[14],[15]   608 [2],[3],[13],[14],[15]     415 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Unosquare, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,175 [3],[13],[14],[17]   2,175 [3],[13],[14],[17]     2,362 [6],[7],[9],[19]            
Cost   2,348 [3],[13],[14],[17]   2,348 [3],[13],[14],[17]     2,355 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Unosquare, LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   143 [3],[18]   143 [3],[18]     216 [6],[10]            
Cost   261 [3],[18]   261 [3],[18]     261 [6],[10]            
Investment, Identifier [Axis]: Unosquare, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (34) [3],[13],[14],[17]   (34) [3],[13],[14],[17]     (8) [6],[7],[9],[19]            
Cost   (8) [3],[13],[14],[17]   (8) [3],[13],[14],[17]     (9) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Utac Ceram | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   1,788 [2],[3],[13],[15]   1,788 [2],[3],[13],[15]     1,837 [5],[6],[9],[16]            
Cost   1,808 [2],[3],[13],[15]   1,808 [2],[3],[13],[15]     1,804 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Utac Ceram | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   3,668 [2],[3],[12],[13]   3,668 [2],[3],[12],[13]     3,668 [5],[6],[8],[9]            
Cost   3,652 [2],[3],[12],[13]   3,652 [2],[3],[12],[13]     3,646 [5],[6],[8],[9]            
Investment, Identifier [Axis]: VB Spine Intermediary II LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   45,393 [3],[12],[13]   45,393 [3],[12],[13]     44,443 [6],[8],[9]            
Cost   45,392 [3],[12],[13]   45,392 [3],[12],[13]     44,441 [6],[8],[9]            
Investment, Identifier [Axis]: VB Spine Intermediary II LLC | LLC Units                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Cost   0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: VOYA CLO 2015-2, LTD. | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[10],[11]             41            
Cost [5],[10],[11]             2,434            
Investment, Identifier [Axis]: VOYA CLO 2016-2, LTD. | Subordinated Structured Notes                          
Schedule of Investments [Line Items]                          
Fair Value [5],[10],[11]             1            
Cost [5],[10],[11]             673            
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   2 [3],[18]   2 [3],[18]     2 [6],[10],[11]            
Cost   60 [3],[18]   60 [3],[18]     60 [6],[10],[11]            
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Warrants                          
Schedule of Investments [Line Items]                          
Fair Value   3 [3],[18]   3 [3],[18]     3 [6],[10],[11]            
Cost   72 [3],[18]   72 [3],[18]     72 [6],[10],[11]            
Investment, Identifier [Axis]: Victoria Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   3,960 [2],[3],[13],[28]   3,960 [2],[3],[13],[28]     4,013 [5],[6],[9],[27]            
Cost   4,107 [2],[3],[13],[28]   4,107 [2],[3],[13],[28]     4,098 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Vista Acquisition, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   8,669   8,669                  
Cost [3],[13],[14],[17]   8,671   8,671                  
Investment, Identifier [Axis]: Vista Acquisition, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value [3],[13],[14],[17]   (9)   (9)                  
Cost [3],[13],[14],[17]   (9)   (9)                  
Investment, Identifier [Axis]: Vista Global Holding Ltd | Structured Secured Note - Class C                          
Schedule of Investments [Line Items]                          
Fair Value   469 [2]   469 [2]     482 [5]            
Cost   481 [2]   481 [2]     488 [5]            
Investment, Identifier [Axis]: Vital Buyer, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,124 [3],[12],[13]   13,124 [3],[12],[13]     13,232 [6],[8],[9]            
Cost   13,103 [3],[12],[13]   13,103 [3],[12],[13]     13,172 [6],[8],[9]            
Investment, Identifier [Axis]: Vital Buyer, LLC | Partnership Units                          
Schedule of Investments [Line Items]                          
Fair Value   594 [3],[18]   594 [3],[18]     566 [6]            
Cost   164 [3],[18]   164 [3],[18]     164 [6]            
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,193 [3],[12],[13],[14]   13,193 [3],[12],[13],[14]     10,900 [6],[7],[8],[9]            
Cost   13,024 [3],[12],[13],[14]   13,024 [3],[12],[13],[14]     10,696 [6],[7],[8],[9]            
Investment, Identifier [Axis]: WWEC Holdings III Corp | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   11,986 [3],[12],[13]   11,986 [3],[12],[13]     12,049 [6],[8],[9]            
Cost   11,914 [3],[12],[13]   11,914 [3],[12],[13]     11,977 [6],[8],[9]            
Investment, Identifier [Axis]: WWEC Holdings III Corp | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   (10) [3],[12],[13],[14]   (10) [3],[12],[13],[14]     (15) [6],[7],[8],[9]            
Cost   (24) [3],[12],[13],[14]   (24) [3],[12],[13],[14]     (29) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Waccamaw River LLC                          
Schedule of Investments [Line Items]                          
Total contributed capital   30,280   30,280     30,280         $ 25,000  
Investment, Identifier [Axis]: Waccamaw River LLC | 20% Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value   76 [2],[18],[35],[45]   76 [2],[18],[35],[45]     4,489 [5],[37],[46]            
Cost   12,664 [2],[18],[35],[45]   12,664 [2],[18],[35],[45]     17,070 [5],[37],[46]            
Investment, Identifier [Axis]: Waccamaw River LLC | Member Interest                          
Schedule of Investments [Line Items]                          
Fair Value             4,489   10,730        
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,018 [3],[12],[13]   13,018 [3],[12],[13]     12,845 [6],[7],[8],[9]            
Cost   12,893 [3],[12],[13]   12,893 [3],[12],[13]     12,759 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | LP Units                          
Schedule of Investments [Line Items]                          
Fair Value   1,527 [3],[18]   1,527 [3],[18]     1,164 [6],[10]            
Cost   631 [3],[18]   631 [3],[18]     631 [6],[10]            
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   709 [3],[12],[13],[14]   709 [3],[12],[13],[14]     (17) [6],[7],[8],[9]            
Cost   683 [3],[12],[13],[14]   683 [3],[12],[13],[14]     (40) [6],[7],[8],[9]            
Investment, Identifier [Axis]: White Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,257 [2],[3],[12],[13]   2,257 [2],[3],[12],[13]     2,247 [5],[6],[8],[9]            
Cost   2,235 [2],[3],[12],[13]   2,235 [2],[3],[12],[13]     2,232 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,962 [3],[18]   1,962 [3],[18]     1,815 [6],[10]            
Cost   1,663 [3],[18]   1,663 [3],[18]     1,663 [6],[10]            
Investment, Identifier [Axis]: Woodland Foods, LLC | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   17,032 [3],[12],[13]   17,032 [3],[12],[13]     17,036 [6],[9]            
Cost   17,001 [3],[12],[13]   17,001 [3],[12],[13]     17,019 [6],[9]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 1                          
Schedule of Investments [Line Items]                          
Fair Value   664 [3]   664 [3]     551 [6]            
Cost   572 [3]   572 [3]     519 [6]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 2                          
Schedule of Investments [Line Items]                          
Fair Value   158 [3]   158 [3]     145 [6]            
Cost   158 [3]   158 [3]     143 [6]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   1,375 [3],[12],[13],[14]   1,375 [3],[12],[13],[14]     (28) [6],[7],[8],[9]            
Cost   1,380 [3],[12],[13],[14]   1,380 [3],[12],[13],[14]     (22) [6],[7],[8],[9]            
Investment, Identifier [Axis]: World 50, Inc. | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   13,637 [3],[13],[25]   13,637 [3],[13],[25]     13,757 [6],[9],[29]            
Cost   13,449 [3],[13],[25]   13,449 [3],[13],[25]     13,547 [6],[9],[29]            
Investment, Identifier [Axis]: World 50, Inc. | Revolver                          
Schedule of Investments [Line Items]                          
Fair Value   0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     0 [6],[7],[9],[29]            
Cost   (12) [3],[13],[14],[25]   (12) [3],[13],[14],[25]     (14) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Common Stock                          
Schedule of Investments [Line Items]                          
Fair Value   1,212 [2],[3],[18]   1,212 [2],[3],[18]     1,228 [5],[6],[10]            
Cost   565 [2],[3],[18]   565 [2],[3],[18]     565 [5],[6],[10]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 1                          
Schedule of Investments [Line Items]                          
Fair Value   320 [2],[3],[13],[24]   320 [2],[3],[13],[24]     329 [5],[6],[9],[23]            
Cost   305 [2],[3],[13],[24]   305 [2],[3],[13],[24]     305 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 2                          
Schedule of Investments [Line Items]                          
Fair Value   9,340 [2],[3],[13],[28]   9,340 [2],[3],[13],[28]     9,465 [5],[6],[9],[27]            
Cost   8,714 [2],[3],[13],[28]   8,714 [2],[3],[13],[28]     8,694 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Subordinated Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   4,727 [2],[3],[13],[28]   4,727 [2],[3],[13],[28]     4,431 [5],[6],[27]            
Cost   4,480 [2],[3],[13],[28]   4,480 [2],[3],[13],[28]     4,138 [5],[6],[27]            
Investment, Identifier [Axis]: Zelda Luxco S.A.S | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   1,671 [2],[3],[13],[14],[24]   1,671 [2],[3],[13],[14],[24]     1,707 [5],[6],[7],[9],[23]            
Cost   1,693 [2],[3],[13],[14],[24]   1,693 [2],[3],[13],[14],[24]     1,688 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Zeppelin Bidco Limited | First Lien Senior Secured Term Loan                          
Schedule of Investments [Line Items]                          
Fair Value   2,663 [2],[3],[13],[28],[35]   2,663 [2],[3],[13],[28],[35]     2,565 [5],[6],[9],[27],[37]   0        
Cost   2,150 [2],[3],[13],[28],[35]   2,150 [2],[3],[13],[28],[35]     2,010 [5],[6],[9],[27],[37]            
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares                          
Schedule of Investments [Line Items]                          
Fair Value   0 [2],[3],[18],[35]   0 [2],[3],[18],[35]     82 [5],[6],[10],[37]            
Cost   0 [2],[3],[18],[35]   0 [2],[3],[18],[35]     0 [5],[6],[10],[37]            
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares(879 shares)                          
Schedule of Investments [Line Items]                          
Fair Value             82   $ 0        
All Members Of Sierra JV | Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV LLC (Sierra JV)                          
Schedule of Investments [Line Items]                          
Total contributed capital   124,500   124,500                  
MMALIC | Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV LLC (Sierra JV)                          
Schedule of Investments [Line Items]                          
Total contributed capital   14,500   14,500                  
Sierra JV                          
Schedule of Investments [Line Items]                          
Dividends   100 2,000 18,700 4,000                
Total dividend income   0 $ 1,800 200 $ 3,500                
Distributions recognized as a return of capital   $ 100   $ 16,500                  
Fair Value             2,701            
Cost             $ 2,721            
Weighted average yield             11.40%            
MassMutual Ascend Life Insurance Company                          
Schedule of Investments [Line Items]                          
Number of members | member 2                        
All Members Of Sierra JV                          
Schedule of Investments [Line Items]                          
Number of members | member 4                        
[1] Payment-in-kind (“PIK”) non-accrual investment..
[2] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 22.1% of total investments at fair value as of June 30, 2026. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[3] The fair value of the investment was determined using significant unobservable inputs.
[4] PIK non-accrual investment.
[5] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 24.0% of total investments at fair value as of December 31, 2025. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[6] The fair value of the investment was determined using significant unobservable inputs.
[7] Position or portion thereof is an unfunded loan or equity commitment.
[8] The interest rate on these loans is subject to 3 Month SOFR, which as of December 31, 2025 was 3.65166%.
[9] Debt investment includes interest rate floor feature.
[10] Investment is non-income producing.
[11] Investment was purchased as part of the Sierra Merger and is part of the Prior Sierra Reference Portfolio for purposes of the Prior Sierra Credit Support Agreement.
[12] The interest rate on these loans is subject to 3 Month SOFR, which as of June 30, 2026 was 3.73372%.
[13] Debt investment includes interest rate floor feature.
[14] Position or portion thereof is an unfunded loan or equity commitment.
[15] The interest rate on these loans is subject to 3 Month EURIBOR, which as of June 30, 2026 was 2.32400%.
[16] The interest rate on these loans is subject to 3 Month EURIBOR, which as of December 31, 2025 was 2.02600%.
[17] The interest rate on these loans is subject to 1 Month SOFR, which as of June 30, 2026 was 3.65197%.
[18] Investment is non-income producing.
[19] The interest rate on these loans is subject to 1 Month SOFR, which as of December 31, 2025 was 3.68751%.
[20] Non-accrual investment.
[21] Non-accrual investment.
[22] The interest rate on these loans is subject to 3 Month SONIA, which as of June 30, 2026 was 3.74700%.
[23] The interest rate on these loans is subject to 6 Month EURIBOR, which as of December 31, 2025 was 2.10700%.
[24] The interest rate on these loans is subject to 6 Month EURIBOR, which as of June 30, 2026 was 2.56800%.
[25] The interest rate on these loans is subject to 6 Month SOFR, which as of June 30, 2026 was 3.84940%.
[26] The interest rate on these loans is subject to 3 Month SONIA, which as of December 31, 2025 was 3.71660%.
[27] The interest rate on these loans is subject to 6 Month SONIA, which as of December 31, 2025 was 3.64430%.
[28] The interest rate on these loans is subject to 6 Month SONIA, which as of June 30, 2026 was 3.76300%.
[29] The interest rate on these loans is subject to 6 Month SOFR, which as of December 31, 2025 was 3.57418%.
[30] The interest rate on these loans is subject to 3 Month BBSY, which as of June 30, 2026 was 4.46150%.
[31] The interest rate on these loans is subject to 3 Month BBSY, which as of December 31, 2025 was 3.73750%.
[32] The interest rate on these loans is subject to 1 Month CORRA, which as of June 30, 2026 was 2.27952%.
[33] The interest rate on these loans is subject to 1 Month EURIBOR, which as of June 30, 2026 was 2.20100%.
[34] The interest rate on these loans is subject to 1 Month EURIBOR, which as of December 31, 2025 was 1.93900%.
[35] In accordance with the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns at least 5% but not more than 25% of the portfolio company’s outstanding voting securities and does not otherwise control (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the six months ended June 30, 2026 were as follows:
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Biolam(d)
First Lien Senior Secured Term Loan (EURIBOR + 4.50%, 6.6% PIK)(e)
$1,731 $— $— $— $(419)$1,312 $— 
Ordinary Shares
(42,639,498 shares)
— — — — — — — 
1,731 — — — (419)1,312 — 
Celebration Bidco, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% Cash)
8,463 43 — — 72 8,578 512 
Common Stock
(1,243,071 shares)
8,925 — — — 1,430 10,355 — 
17,388 43 — — 1,502 18,933 512 
Coastal Marina Holdings, LLC(d)
Subordinated Term Loan
(8.0% Cash)
15,891 55 — — 55 16,001 714 
Subordinated Term Loan
(8.0% Cash)
7,327 20 — — 30 7,377 324 
LLC Units (3,518,097 units)
19,983 — — — 563 20,546 — 
43,201 75 — — 648 43,924 1,038 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Eclipse Business Capital, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 6.60%, 10.2% Cash)
$— $3,333 $— $— $— $3,333 $33 
Revolver (SOFR + 6.60%, 10.2% Cash)
9,909 27,736 (24,757)— (9)12,879 501 
Second Lien Senior Secured Term Loan (7.5% Cash)
4,546 4 — — (4)4,546 176 
LLC units (89,447,396 units)
139,539 — — — — 139,539 8,067 
153,994 31,073 (24,757)— (13)160,297 8,777 
EMI Porta Holdco LLC(d)
First Lien Senior Secured Term Loan (SOFR + 5.50%, 9.1% Cash)
— 4,656 — — — 4,656 59 
Revolver (SOFR + 5.50%, 9.1% Cash)
— 127 (127)— — — 2 
Preferred Stock
(2,322,860 shares)
(12.0% PIK)
— 2,323 — — 46 2,369 — 
Common Stock
(6,017,772 shares)
— 3,004 — — (56)2,948 — 
— 10,110 (127)— (10)9,973 61 
Jocassee Partners LLC
9.1% Member Interest
37,986 — — — (4,806)33,180 5,709 
37,986 — — — (4,806)33,180 5,709 
Policy Services(d)
First Lien Senior Secured Term Loan (SOFR + 6.00%, 9.9% Cash, 4.0% PIK)
— 50,122 — — (226)49,896 1,995 
Class A Units
(251.4 units)
— — — — — — — 
Warrants - Class A
(2.5582 units)
— — — — — — — 
Warrants - Class B
(0.8634 units)
— — — — — — — 
Warrants - Class CC
(0.0888 units)
— — — — — — — 
Warrants - Class D
(0.2471 units)
— — — — — — 
— 50,122 — — (226)49,896 1,995 
Rocade Holdings LLC(d)
Second Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% Cash)
2,667 9,282 — — (19)11,930 329 
Preferred LP Units (71,000 units) (SOFR + 6.00%, 9.7% Cash)
89,450 4,270 (4,681)— 2 89,041 4,270 
Common LP Units (23.8 units)
3,596 — — — 1,091 4,687 1,236 
95,713 13,552 (4,681)— 1,074 105,658 5,835 
Sierra Senior Loan Strategy JV I LLC
89.01% Member Interest
16,404 — (16,437)— 33 — 223 
16,404 — (16,437)— 33 — 223 
Skyvault Holdings LLC(d)
First Lien Senior Secured Term Loan (12.0% Cash)
16,020 123 — — — 16,143 971 
LLC Units (5,381,304.8 units)
5,339 41 (2,140)— 1,763 5,003 1,899 
21,359 164 (2,140)— 1,763 21,146 2,870 
Thompson Rivers LLC
16.0% Member Interest
4,271 — (1,598)— 37 2,710 — 
4,271 — (1,598)— 37 2,710 — 
Waccamaw River LLC
20% Member Interest
4,489 — (4,406)— (7)76 161 
4,489 — (4,406)— (7)76 161 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Zeppelin Bidco Limited(d)
First Lien Senior Secured Term Loan (SONIA + 6.50%, 10.2% Cash)
$2,565 $140 $— $— $(42)$2,663 $139 
Ordinary Shares (879 shares)
82 — — — (82)— — 
2,647 140 — — (124)2,663 139 
Total Affiliate Investments$399,183 $105,279 $(54,146)$— $(548)$449,768 $27,320 
(a)     Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)    Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c) Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment
[36] Non-accrual investment
[37] In accordance with the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns at least 5% but not more than 25% of the portfolio company’s outstanding voting securities and does not otherwise control (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the year ended December 31, 2025 were as follows:
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31,
2025
 Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Biolam(d)
First Lien Senior Secured Term Loan (EURIBOR + 4.50%, 6.5% PIK)(e)
$— $1,258 $(128)$44 $557 $1,731 $(27)
Ordinary Shares
(42,639,498 shares)
— — — — — — — 
— 1,258 (128)44 557 1,731 (27)
Celebration Bidco, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% PIK)
6,414 2,266 — — (217)8,463 987 
Common Stock
(1,243,071 shares)
11,262 — — — (2,337)8,925 — 
17,676 2,266 — — (2,554)17,388 987 
Coastal Marina Holdings, LLC(d)
Subordinated Term Loan
(8.0% Cash)
15,770 103 — — 18 15,891 1,432 
Subordinated Term Loan
(8.0% Cash)
7,271 38 — — 18 7,327 650 
LLC Units (3,518,097 units)
16,852 — — — 3,131 19,983 — 
39,893 141 — — 3,167 43,201 2,082 
Eclipse Business Capital, LLC(d)
Revolver (SOFR + 6.50%, 10.3% Cash)
10,091 8,650 (8,820)— (12)9,909 1,116 
Second Lien Senior Secured Term Loan (7.5% Cash)
4,545 7 — — (6)4,546 354 
LLC units (89,447,396 units)
136,855 23 — — 2,661 139,539 16,551 
151,491 8,680 (8,820)— 2,643 153,994 18,021 
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31,
2025
 Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Jocassee Partners LLC
9.1% Member Interest
$40,761 $— $— $— $(2,775)$37,986 $5,709 
40,761 — — — (2,775)37,986 5,709 
Rocade Holdings LLC(d)
Second Lien Senior Secured Term Loan (SOFR + 8.00%, 11.9% Cash)
— 2,671 — — (4)2,667 38 
Preferred LP Units (71,000 units) (SOFR + 6.00%, 9.9% PIK)
83,000 8,818 (2,355)— (13)89,450 8,818 
Common LP Units (23.8 units)
243 — — — 3,353 3,596 308 
83,243 11,489 (2,355)— 3,336 95,713 9,164 
Sierra Senior Loan Strategy JV I LLC
89.01% Member Interest
41,453 — (20,472)— (4,577)16,404 7,121 
41,453 — (20,472)— (4,577)16,404 7,121 
Skyvault Holdings LLC(d)
First Lien Senior Secured Term Loan (12.0% Cash)
3,586 12,615 (181)— — 16,020 1,409 
LLC Units (5,340,186.4 units)
1,195 4,153 — — (9)5,339 — 
4,781 16,768 (181)— (9)21,359 1,409 
Thompson Rivers LLC
16.0% Member Interest
7,208 — (2,876)— (61)4,271 — 
7,208 — (2,876)— (61)4,271 — 
Waccamaw River LLC
20% Member Interest
10,730 — (5,843)— (398)4,489 907 
10,730 — (5,843)— (398)4,489 907 
Zeppelin Bidco Limited(d)
First Lien Senior Secured Term Loan (SONIA + 6.50%, 10.5% Cash)
— 2,826 (13)(4,835)4,587 2,565 111 
Ordinary Shares
(879 shares)
— — — — 82 82 — 
— 2,826 (13)(4,835)4,669 2,647 111 
Total Affiliate Investments$397,236 $43,428 $(40,688)$(4,791)$3,998 $399,183 $45,484 

(a)     Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)    Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c) Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment
[38] Non-accrual investment
[39] Non-accrual investment.
[40] The interest rate on these loans is subject to 3 Month CORRA, which as of June 30, 2026 was 2.34000%.
[41] The interest rate on these loans is subject to 3 Month CORRA, which as of December 31, 2025 was 2.30000%.
[42] The interest rate on these loans is subject to 3 Month BKBM, which as of June 30, 2026 was 2.68000%.
[43] The interest rate on these loans is subject to 3 Month BKBM, which as of December 31, 2025 was 2.49000%.
[44] The interest rate on these loans is subject to 1 Month SARON, which as of December 31, 2025 was -0.04570%.
[45] Portfolio company does not issue shares or units; member interest is based on commitments.
[46] Portfolio company does not issue shares or units, member interest is based on commitments.
[47] Investment was purchased as part of the Sierra Merger and is part of the New Sierra Reference Portfolio for purposes of the New Sierra Credit Support Agreement.
[48] Investment was purchased from MVC Capital, Inc. (“MVC”) in connection with the MVC Acquisition (as defined in “Note 2. Agreements and Related Party Transactions”).
[49] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company (including through a management agreement). Transactions as of and during the year ended December 31, 2025 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31, 2025
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Black Angus Steakhouses, LLC(d)
First Lien Senior Secured Term Loan (14.4% PIK)(e)
$2,744 $— $(610)$(7,481)$5,347 $— $(6)
First Lien Senior Secured Term Loan (10.0% PIK)(e)
— — — (9,628)9,628 — — 
LLC Units (44.6 units)
— — — — — — — 
2,744 — (610)(17,109)14,975 — (6)
MVC Automotive Group GmbH(d)
First Lien Senior Secured Term Loan (7.0% Cash)
— 2,338 (2,341)3 — — 85 
Common Equity Interest (18,000 Shares)
13,741 4,000 — — (3,598)14,143 — 
13,741 6,338 (2,341)3 (3,598)14,143 85 
MVC Private Equity Fund LP
General Partnership Interest
(1,831.4 units)
— — — (183)183 — — 
Limited Partnership Interest
(71,790.4 units)
11 — (116)(7,166)7,271 — — 
11 — (116)(7,349)7,454 — — 
Security Holdings B.V(d)
Bridge Loan (5.0% PIK)
6,655 342 — — — 6,997 342 
Revolver (6.0% Cash)
5,333 165 (3)2 728 6,225 379 
Senior Unsecured Term Loan (6.0% Cash, 9.0% PIK)
2,293 299 — — 317 2,909 474 
Senior Subordinated Term Loan (3.1% PIK)
11,191 374 — — — 11,565 360 
Common Stock Series A (17,100 shares)
399 — — — 37 436 — 
Common Stock Series B (1,236 shares)
37,296 — — — 3,406 40,702 2,817 
63,167 1,180 (3)2 4,488 68,834 4,372 
Total Control Investments$79,663 $7,518 $(3,070)$(24,453)$23,319 $82,977 $4,451 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Control category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment.
[50] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company (including through a management agreement). Transactions as of and during the six months ended June 30, 2026 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
MVC Automotive Group GmbH(d)
First Lien Senior Secured Term Loan (EURIBOR + 7.65%, 9.9% Cash)
$— $5,582 $(3,733)$(63)$(70)$1,716 $155 
First Lien Senior Secured Term Loan (7.7% Cash)
— 3,100 — — (13)3,087 27 
Common Equity Interest (25,404 Shares)
14,143 — — — (5,696)8,447 — 
14,143 8,682 (3,733)(63)(5,779)13,250 182 
Security Holdings B.V(d)
Bridge Loan (5.0% PIK)
6,997 176 — — — 7,173 176 
Revolver (6.0% PIK)
6,225 5,179 — (6)(414)10,984 279 
Senior Subordinated Term Loan (3.1% PIK)
11,565 182 — — — 11,747 182 
Senior Unsecured Term Loan (15.0% PIK)
2,909 218 — — (78)3,049 226 
Common Stock Series A (17,100 shares)
436 — — — 11 447 — 
Common Stock Series B (1,236 shares)
40,702 — — — 1,039 41,741 — 
68,834 5,755 — (6)558 75,141 863 
Total Control Investments$82,977 $14,437 $(3,733)$(69)$(5,221)$88,391 $1,045 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Control category.
(d) The fair value of the investment was determined using significant unobservable inputs.
[51] The interest rate on these loans is subject to 1 Month NIBOR, which as of June 30, 2026 was 4.36000%.
[52] The interest rate on these loans is subject to 1 Month NIBOR, which as of December 31, 2025 was 3.89000%.
[53] The interest rate on these loans is subject to 6 Month BBSY, which as of December 31, 2025 was 4.12100%.
[54] The interest rate on these loans is subject to 1 Month BBSY, which as of June 30, 2026 was 4.31030%.
[55] The interest rate on these loans is subject to 1 Month BBSY, which as of December 31, 2025 was 3.55000%.
[56] The interest rate on these loans is subject to 3 Month SARON, which as of June 30, 2026 was -0.04220%
[57] The interest rate on these loans is subject to 3 Month SARON, which as of December 31, 2025 was -0.04360%.
[58] The interest rate on these loans is subject to 3 Month STIBOR, which as of June 30, 2026 was 1.97200%.
[59] The interest rate on these loans is subject to 3 Month STIBOR, which as of December 31, 2025 was 1.95800%.