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Investments - Individual Investments in the Portfolios of SLP III and SLP IV (Details)
€ in Thousands, £ in Thousands, $ in Thousands
Sep. 30, 2022
USD ($)
Sep. 30, 2022
GBP (£)
Sep. 30, 2022
EUR (€)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
GBP (£)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
May 03, 2013
USD ($)
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost $ 3,258,903 [1]       $ 3,126,492 [2]        
Fair Value 3,234,433 [1]       3,174,364 [2]        
Investment, Identifier [Axis]: AAC Lender Holdings, LLC, Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[4],[5]       0 [6],[7],[8]        
Fair Value $ 0 [3],[4],[5]       $ 0 [6],[7],[8]        
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.26% 8.26% 8.26%            
Interest Rate Margin [3],[4],[9],[10] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[4],[10],[11] $ 8,510                
Cost [3],[4],[10] 8,596                
Fair Value [3],[4],[10] $ 8,425                
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[10],[12] 8.26% 8.26% 8.26%            
Interest Rate Margin [3],[9],[10],[12] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[10],[11],[12] $ 2,761                
Cost [3],[10],[12] 2,789                
Fair Value [3],[10],[12] $ 2,733                
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.58% 8.58% 8.58%            
Interest Rate Margin [3],[9],[13] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[13] $ 20,687                
Cost [3],[13] 20,502                
Fair Value [3],[13] $ 20,479                
Investment, Identifier [Axis]: AAH Topco, LLC, First Lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 8.58% 8.58% 8.58%            
Interest Rate Margin [3],[9],[12] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[12] $ 9,822                
Cost [3],[12] 9,734                
Fair Value [3],[12] 9,724                
Investment, Identifier [Axis]: AAH Topco, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [14],[15]         6.25% 6.25%      
Interest Rate Margin [14],[15]         5.50% 5.50%      
Principal amount or par value [14],[16]         $ 20,843        
Cost [14]         20,635        
Fair Value [14]         20,634        
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,659 [3],[4],[10],[11]       3,659 [7],[16],[17]        
Cost (37) [3],[4],[10]       (37) [7],[17]        
Fair Value (37) [3],[4],[10]       (37) [7],[17]        
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 5,486 [3],[10],[11],[12]       25,420 [7],[16],[17]        
Cost (55) [3],[10],[12]       0 [7],[17]        
Fair Value (55) [3],[10],[12]       $ (254) [7],[17]        
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 16,910                
Cost [3],[4],[10] (169)                
Fair Value [3],[4],[10] $ (169)                
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [7],[15],[18]         11.50% 11.50%      
Principal amount or par value [7],[16]         $ 11,110        
Cost [7]         10,944        
Fair Value [7]         $ 10,944        
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 11.50% 11.50% 11.50%            
Principal amount or par value [3],[4],[11] $ 12,141                
Cost [3],[4] 11,982                
Fair Value [3],[4] $ 11,959                
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12],[19] 11.50% 11.50% 11.50%            
Principal amount or par value [3],[11],[12] $ 4,761                
Cost [3],[12] 4,699                
Fair Value [3],[12] $ 4,690                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [3],[9],[20] 9.17% [3],[9],[20] 9.17% [3],[9],[20]   6.25% [6],[15],[21] 6.25% [6],[15],[21]      
Interest Rate Margin 5.50% [3],[9],[20] 5.50% [3],[9],[20] 5.50% [3],[9],[20]   5.50% [6],[15],[21] 5.50% [6],[15],[21]      
Principal amount or par value $ 22,138 [3],[11],[20]       $ 22,306 [6],[16],[21]        
Cost 21,947 [3],[20]       22,094 [6],[21]        
Fair Value $ 21,567 [3],[20]       $ 22,083 [6],[21]        
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [3],[4],[9],[10] 9.17% [3],[4],[9],[10] 9.17% [3],[4],[9],[10]   6.25% [6],[7],[15],[17] 6.25% [6],[7],[15],[17]      
Interest Rate Margin 5.50% [3],[4],[9],[10] 5.50% [3],[4],[9],[10] 5.50% [3],[4],[9],[10]   5.50% [6],[7],[15],[17] 5.50% [6],[7],[15],[17]      
Principal amount or par value $ 1,946 [3],[4],[10],[11]       $ 59 [6],[7],[16],[17]        
Cost 1,927 [3],[4],[10]       58 [6],[7],[17]        
Fair Value 1,895 [3],[4],[10]       58 [6],[7],[17]        
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,354 [3],[4],[10],[11]       2,354 [6],[7],[16],[17]        
Cost (24) [3],[4],[10]       (24) [6],[7],[17]        
Fair Value (61) [3],[4],[10]       (24) [6],[7],[17]        
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 6,287 [3],[4],[10],[11]       8,180 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       0 [6],[7],[17]        
Fair Value (162) [3],[4],[10]       (82) [6],[7],[17]        
Investment, Identifier [Axis]: ACI Parent Inc., Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 14,181 [3],[4],[22]       12,994 [6],[7],[23]        
Fair Value $ 13,663 [3],[4],[22]       $ 12,989 [6],[7],[23]        
Investment, Identifier [Axis]: ADG, LLC, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.13% [3],[4],[9],[19] 13.13% [3],[4],[9],[19] 13.13% [3],[4],[9],[19]   11.00% [6],[7],[15],[18] 11.00% [6],[7],[15],[18]      
Interest Rate Margin 10.00% [3],[4],[9],[19] 10.00% [3],[4],[9],[19] 10.00% [3],[4],[9],[19]   10.00% [6],[7],[15],[18] 10.00% [6],[7],[15],[18]      
Principal amount or par value $ 7,179 [3],[4],[11]       $ 6,591 [6],[7],[16]        
Cost 7,159 [3],[4]       6,562 [6],[7]        
Fair Value $ 6,280 [3],[4]       $ 6,082 [6],[7]        
Investment, Identifier [Axis]: Affinity Dental Management, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         7.00% 7.00%      
Interest Rate Margin [6],[7],[15],[17]         6.00% 6.00%      
Principal amount or par value [6],[7],[16],[17]         $ 1,738        
Cost [6],[7],[17]         1,720        
Fair Value [6],[7],[17]         $ 1,738        
Investment, Identifier [Axis]: Affinity Dental Management, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         7.00% 7.00%      
Interest Rate Margin [6],[15],[21]         6.00% 6.00%      
Principal amount or par value [6],[16],[21]         $ 33,281        
Cost [6],[21]         33,256        
Fair Value [6],[21]         $ 33,281        
Investment, Identifier [Axis]: Affinity Dental Management, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[24]         7.00% 7.00%      
Interest Rate Margin [6],[15],[24]         6.00% 6.00%      
Principal amount or par value [6],[16],[24]         $ 10,482        
Cost [6],[24]         10,482        
Fair Value [6],[24]         $ 10,482        
Investment, Identifier [Axis]: AgKnowledge Holdings Company, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         5.75% 5.75%      
Interest Rate Margin [6],[15],[21]         4.75% 4.75%      
Principal amount or par value [6],[16],[21]         $ 9,166        
Cost [6],[21]         9,149        
Fair Value [6],[21]         9,166        
Investment, Identifier [Axis]: AgKnowledge Holdings Company, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         526        
Cost [6],[7],[17]         (3)        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Alegeus Technologies Holding Corp., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.95% [3],[9],[13] 10.95% [3],[9],[13] 10.95% [3],[9],[13]   9.25% [6],[14],[15] 9.25% [6],[14],[15]      
Interest Rate Margin 8.25% [3],[9],[13] 8.25% [3],[9],[13] 8.25% [3],[9],[13]   8.25% [6],[14],[15] 8.25% [6],[14],[15]      
Principal amount or par value $ 13,444 [3],[11],[13]       $ 13,443 [6],[14],[16]        
Cost 13,418 [3],[13]       13,409 [6],[14]        
Fair Value 13,444 [3],[13]       13,443 [6],[14]        
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 1,776                
Cost [3],[4],[10] (9)                
Fair Value [3],[4],[10] (31)                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 14,376                
Cost [3],[4],[10] (72)                
Fair Value [3],[4],[10] (253)                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 29,986                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,652 [3],[4],[5],[10],[11]       2,652 [6],[7],[8],[16],[17]        
Cost 0 [3],[4],[5],[10]       0 [6],[7],[8],[17]        
Fair Value $ 0 [3],[4],[5],[10]       $ 0 [6],[7],[8],[17]        
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.82% [3],[9],[19],[20],[25] 8.82% [3],[9],[19],[20],[25] 8.82% [3],[9],[19],[20],[25]   7.25% [6],[15],[18],[21],[26] 7.25% [6],[15],[18],[21],[26]      
Interest Rate Margin 5.75% [3],[9],[19],[20],[25] 5.75% [3],[9],[19],[20],[25] 5.75% [3],[9],[19],[20],[25]   5.75% [6],[15],[18],[21],[26] 5.75% [6],[15],[18],[21],[26]      
Interest rate PIK 0.50% [3],[9],[19],[20],[25] 0.50% [3],[9],[19],[20],[25] 0.50% [3],[9],[19],[20],[25]   0.50% [6],[15],[18],[21],[26] 0.50% [6],[15],[18],[21],[26]      
Principal amount or par value $ 28,459 [3],[11],[20]       $ 27,610 [6],[16],[21]        
Cost 28,415 [3],[20]       27,559 [6],[21]        
Fair Value $ 20,335 [3],[20]       $ 17,386 [6],[21]        
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 16.57% [3],[4],[9],[19],[25] 16.57% [3],[4],[9],[19],[25] 16.57% [3],[4],[9],[19],[25]   15.00% [6],[7],[15],[18],[26] 15.00% [6],[7],[15],[18],[26]      
Interest Rate Margin 13.50% [3],[4],[9],[19],[25] 13.50% [3],[4],[9],[19],[25] 13.50% [3],[4],[9],[19],[25]   13.50% [6],[7],[15],[18],[26] 13.50% [6],[7],[15],[18],[26]      
Interest rate PIK 0.50% [3],[4],[9],[19],[25] 0.50% [3],[4],[9],[19],[25] 0.50% [3],[4],[9],[19],[25]   0.50% [6],[7],[15],[18],[26] 0.50% [6],[7],[15],[18],[26]      
Principal amount or par value $ 1,527 [3],[4],[11]       $ 1,527 [6],[7],[16]        
Cost 1,527 [3],[4]       1,527 [6],[7]        
Fair Value 0 [3],[4]       $ 0 [6],[7]        
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value             $ 12,911    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 12,893                
Fair Value $ 8,134                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 3.28% [3],[4],[9],[19],[25] 3.28% [3],[4],[9],[19],[25] 3.28% [3],[4],[9],[19],[25]   2.00% [6],[7],[15],[18],[26] 2.00% [6],[7],[15],[18],[26]      
Interest Rate Margin 1.00% [3],[4],[9],[19],[25] 1.00% [3],[4],[9],[19],[25] 1.00% [3],[4],[9],[19],[25]   1.00% [6],[7],[15],[18],[26] 1.00% [6],[7],[15],[18],[26]      
Principal amount or par value $ 5,230 [3],[4],[11]       $ 5,230 [6],[7],[16]        
Cost 0 [3],[4]       0 [6],[7]        
Fair Value 0 [3],[4]       0 [6],[7]        
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value               $ 5,230  
Investment, Identifier [Axis]: Ancora Acquisition LLC, Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 83 [3],[27]       83 [6],[28]        
Fair Value 158 [3],[27]       $ 158 [6],[28]        
Investment, Identifier [Axis]: Ansira Holdings, Inc.                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 41,313                
Fair Value $ 19,708                
Investment, Identifier [Axis]: Ansira Holdings, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.31% [3],[9],[13],[19],[25] 9.31% [3],[9],[13],[19],[25] 9.31% [3],[9],[13],[19],[25]   7.50% [6],[14],[15],[18] 7.50% [6],[14],[15],[18]      
Interest Rate Margin 6.50% [3],[9],[13],[19],[25] 6.50% [3],[9],[13],[19],[25] 6.50% [3],[9],[13],[19],[25]   6.50% [6],[14],[15],[18] 6.50% [6],[14],[15],[18]      
Principal amount or par value $ 33,026 [3],[11],[13]       $ 31,793 [6],[14],[16]        
Cost 32,987 [3],[13]       31,748 [6],[14]        
Fair Value $ 15,737 [3],[13]       $ 24,025 [6],[14]        
Investment, Identifier [Axis]: Ansira Holdings, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.57% [3],[4],[9],[19],[25] 9.57% [3],[4],[9],[19],[25] 9.57% [3],[4],[9],[19],[25]   7.50% [6],[7],[15],[18] 7.50% [6],[7],[15],[18]      
Interest Rate Margin 6.50% [3],[4],[9],[19],[25] 6.50% [3],[4],[9],[19],[25] 6.50% [3],[4],[9],[19],[25]   6.50% [6],[7],[15],[18] 6.50% [6],[7],[15],[18]      
Principal amount or par value $ 8,334 [3],[4],[11]       $ 8,033 [6],[7],[16]        
Cost 8,326 [3],[4]       8,024 [6],[7]        
Fair Value 3,971 [3],[4]       6,071 [6],[7]        
Investment, Identifier [Axis]: Appriss Health Intermediate Holdings, Inc., Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 2,681 [3],[4],[29]       2,468 [6],[7],[30]        
Fair Value $ 2,678 [3],[4],[29]       $ 2,466 [6],[7],[30]        
Investment, Identifier [Axis]: Appriss Health, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.93% [3],[9],[13] 9.93% [3],[9],[13] 9.93% [3],[9],[13]   8.25% [6],[14],[15] 8.25% [6],[14],[15]      
Interest Rate Margin 7.25% [3],[9],[13] 7.25% [3],[9],[13] 7.25% [3],[9],[13]   7.25% [6],[14],[15] 7.25% [6],[14],[15]      
Principal amount or par value $ 6,242 [3],[11],[13],[29]       $ 6,250 [6],[14],[16],[30]        
Cost 6,191 [3],[13],[29]       6,192 [6],[14],[30]        
Fair Value 6,242 [3],[13],[29]       6,187 [6],[14],[30]        
Investment, Identifier [Axis]: Appriss Health, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 417 [3],[4],[10],[11],[29]       417 [6],[7],[16],[17],[30]        
Cost (4) [3],[4],[10],[29]       (4) [6],[7],[17],[30]        
Fair Value $ 0 [3],[4],[10],[29]       $ (4) [6],[7],[17],[30]        
Investment, Identifier [Axis]: Apptio, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         8.25% 8.25%      
Interest Rate Margin [6],[14],[15]         7.25% 7.25%      
Principal amount or par value [6],[14],[16]         $ 11,203        
Cost [6],[14]         11,075        
Fair Value [6],[14]         $ 11,203        
Investment, Identifier [Axis]: Apptio, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.46% [3],[4],[9],[10] 8.46% [3],[4],[9],[10] 8.46% [3],[4],[9],[10]   8.25% [6],[7],[15],[17] 8.25% [6],[7],[15],[17]      
Interest Rate Margin 6.00% [3],[4],[9],[10] 6.00% [3],[4],[9],[10] 6.00% [3],[4],[9],[10]   7.25% [6],[7],[15],[17] 7.25% [6],[7],[15],[17]      
Principal amount or par value $ 827 [3],[4],[10],[11]       $ 827 [6],[7],[16],[17]        
Cost 810 [3],[4],[10]       810 [6],[7],[17]        
Fair Value 827 [3],[4],[10]       827 [6],[7],[17]        
Investment, Identifier [Axis]: Apptio, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,240 [3],[4],[10],[11]       1,240 [6],[7],[16],[17]        
Cost (25) [3],[4],[10]       (25) [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: Apptio, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.46% 8.46% 8.46%            
Interest Rate Margin [3],[9],[13] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[13] $ 5,703                
Cost [3],[13] 5,653                
Fair Value [3],[13] $ 5,703                
Investment, Identifier [Axis]: Apptio, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.46% 8.46% 8.46%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 5,500                
Cost [3],[20] 5,451                
Fair Value [3],[20] 5,500                
Investment, Identifier [Axis]: Associations, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15],[18]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15],[18]         4.00% 4.00%      
Interest rate PIK [6],[14],[15],[18]         2.50% 2.50%      
Principal amount or par value [6],[14],[16]         $ 8,590        
Cost [6],[14]         8,548        
Fair Value [6],[14]         8,547        
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,543 [3],[4],[10],[11]       3,543 [6],[7],[16],[17]        
Cost (18) [3],[4],[10]       (18) [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ (18) [6],[7],[17]        
Investment, Identifier [Axis]: Associations, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.88% [3],[9],[19],[20] 8.88% [3],[9],[19],[20] 8.88% [3],[9],[19],[20]   7.50% [6],[15],[18],[21] 7.50% [6],[15],[18],[21]      
Interest Rate Margin 4.00% [3],[9],[19],[20] 4.00% [3],[9],[19],[20] 4.00% [3],[9],[19],[20]   4.00% [6],[15],[18],[21] 4.00% [6],[15],[18],[21]      
Interest rate PIK 2.50% [3],[9],[19],[20] 2.50% [3],[9],[19],[20] 2.50% [3],[9],[19],[20]   2.50% [6],[15],[18],[21] 2.50% [6],[15],[18],[21]      
Principal amount or par value $ 35,558 [3],[11],[20]       $ 30,196 [6],[16],[21]        
Cost 35,424 [3],[20]       30,056 [6],[21]        
Fair Value $ 35,558 [3],[20]       $ 30,045 [6],[21]        
Investment, Identifier [Axis]: Associations, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.10% [3],[9],[13],[19] 10.10% [3],[9],[13],[19] 10.10% [3],[9],[13],[19]   7.50% [6],[7],[15],[18] 7.50% [6],[7],[15],[18]      
Interest Rate Margin 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19]   4.00% [6],[7],[15],[18] 4.00% [6],[7],[15],[18]      
Interest rate PIK 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19]   2.50% [6],[7],[15],[18] 2.50% [6],[7],[15],[18]      
Principal amount or par value $ 8,754 [3],[11],[13]       $ 8,590 [6],[7],[16]        
Cost 8,717 [3],[13]       8,547 [6],[7]        
Fair Value $ 8,754 [3],[13]       $ 8,547 [6],[7]        
Investment, Identifier [Axis]: Associations, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 10.26% 10.26% 10.26%            
Interest Rate Margin [3],[4],[9],[19] 4.00% 4.00% 4.00%            
Interest rate PIK [3],[4],[9],[19] 2.50% 2.50% 2.50%            
Principal amount or par value [3],[4],[11] $ 8,754                
Cost [3],[4] 8,717                
Fair Value [3],[4] $ 8,754                
Investment, Identifier [Axis]: Associations, Inc., First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.40% [3],[9],[13],[19] 9.40% [3],[9],[13],[19] 9.40% [3],[9],[13],[19]   7.50% [6],[14],[15],[18] 7.50% [6],[14],[15],[18]      
Interest Rate Margin 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19]   4.00% [6],[14],[15],[18] 4.00% [6],[14],[15],[18]      
Interest rate PIK 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19]   2.50% [6],[14],[15],[18] 2.50% [6],[14],[15],[18]      
Principal amount or par value $ 5,287 [3],[11],[13]       $ 5,188 [6],[14],[16]        
Cost 5,265 [3],[13]       5,163 [6],[14]        
Fair Value $ 5,287 [3],[13]       $ 5,162 [6],[14]        
Investment, Identifier [Axis]: Associations, Inc., First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.88% [3],[9],[13],[19] 8.88% [3],[9],[13],[19] 8.88% [3],[9],[13],[19]   7.50% [6],[14],[15],[18] 7.50% [6],[14],[15],[18]      
Interest Rate Margin 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19] 4.00% [3],[9],[13],[19]   4.00% [6],[14],[15],[18] 4.00% [6],[14],[15],[18]      
Interest rate PIK 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19]   2.50% [6],[14],[15],[18] 2.50% [6],[14],[15],[18]      
Principal amount or par value $ 4,206 [3],[11],[13]       $ 4,127 [6],[14],[16]        
Cost 4,189 [3],[13]       4,107 [6],[14]        
Fair Value $ 4,206 [3],[13]       $ 4,106 [6],[14]        
Investment, Identifier [Axis]: Aston FinCo S.a r.l. / Aston US Finco, LLC, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.37% [3],[9],[13] 11.37% [3],[9],[13] 11.37% [3],[9],[13]   8.35% [6],[14],[15] 8.35% [6],[14],[15]      
Interest Rate Margin 8.25% [3],[9],[13] 8.25% [3],[9],[13] 8.25% [3],[9],[13]   8.25% [6],[14],[15] 8.25% [6],[14],[15]      
Principal amount or par value $ 34,459 [3],[11],[13]       $ 34,459 [6],[14],[16]        
Cost 34,264 [3],[13]       34,241 [6],[14]        
Fair Value $ 34,459 [3],[13],[31]       34,459 [6],[14],[32]        
Investment, Identifier [Axis]: Auctane, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.38% 8.38% 8.38%            
Interest Rate Margin [3],[9],[13] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[13] $ 22,124                
Cost [3],[13] 21,929                
Fair Value [3],[13] $ 21,748                
Investment, Identifier [Axis]: Auctane, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.38% 8.38% 8.38%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 14,962                
Cost [3],[20] 14,830                
Fair Value [3],[20] 14,708                
Investment, Identifier [Axis]: Bach Special Limited (Bach Preference Limited), Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 10,446 [3],[4],[33]       9,525 [6],[7],[34]        
Fair Value $ 10,525 [3],[4],[31],[33]       $ 9,701 [6],[7],[32],[34]        
Investment, Identifier [Axis]: Bluefin Holding, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.43% [3],[4],[9],[10] 8.43% [3],[4],[9],[10] 8.43% [3],[4],[9],[10]   4.41% [6],[7],[15],[17] 4.41% [6],[7],[15],[17]      
Interest Rate Margin 4.25% [3],[4],[9],[10] 4.25% [3],[4],[9],[10] 4.25% [3],[4],[9],[10]   4.25% [6],[7],[15],[17] 4.25% [6],[7],[15],[17]      
Principal amount or par value $ 1,030 [3],[4],[10],[11]       $ 1,485 [6],[7],[16],[17]        
Cost 1,015 [3],[4],[10]       1,463 [6],[7],[17]        
Fair Value $ 1,000 [3],[4],[10]       1,485 [6],[7],[17]        
Investment, Identifier [Axis]: Bluefin Holding, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         30        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Bluefin Holding, LLC, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.83% [3],[9],[13] 9.83% [3],[9],[13] 9.83% [3],[9],[13]   7.93% [6],[14],[15] 7.93% [6],[14],[15]      
Interest Rate Margin 7.75% [3],[9],[13] 7.75% [3],[9],[13] 7.75% [3],[9],[13]   7.75% [6],[14],[15] 7.75% [6],[14],[15]      
Principal amount or par value $ 18,000 [3],[11],[13]       $ 18,000 [6],[14],[16]        
Cost 18,000 [3],[13]       18,000 [6],[14]        
Fair Value $ 17,505 [3],[13]       $ 18,000 [6],[14]        
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.62% [3],[9],[35] 10.62% [3],[9],[35] 10.62% [3],[9],[35]   7.60% [15],[36] 7.60% [15],[36]      
Interest Rate Margin 7.50% [3],[9],[35] 7.50% [3],[9],[35] 7.50% [3],[9],[35]   7.50% [15],[36] 7.50% [15],[36]      
Principal amount or par value $ 22,500 [3],[11],[35]       $ 22,500 [16],[36]        
Cost 22,440 [3],[35]       22,430 [36]        
Fair Value $ 21,798 [3],[35]       $ 22,613 [36]        
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.62% [3],[9],[20] 10.62% [3],[9],[20] 10.62% [3],[9],[20]   7.60% [15],[21] 7.60% [15],[21]      
Interest Rate Margin 7.50% [3],[9],[20] 7.50% [3],[9],[20] 7.50% [3],[9],[20]   7.50% [15],[21] 7.50% [15],[21]      
Principal amount or par value $ 16,624 [3],[11],[20]       $ 16,624 [16],[21]        
Cost 16,534 [3],[20]       16,518 [21]        
Fair Value $ 16,105 [3],[20]       $ 16,707 [21]        
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., Second lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.62% [3],[9],[13] 10.62% [3],[9],[13] 10.62% [3],[9],[13]   7.60% [14],[15] 7.60% [14],[15]      
Interest Rate Margin 7.50% [3],[9],[13] 7.50% [3],[9],[13] 7.50% [3],[9],[13]   7.50% [14],[15] 7.50% [14],[15]      
Principal amount or par value $ 6,000 [3],[11],[13]       $ 6,000 [14],[16]        
Cost 5,968 [3],[13]       5,962 [14]        
Fair Value $ 5,813 [3],[13]       6,030 [14]        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 392                
Cost [3],[4],[10] 389                
Fair Value [3],[4],[10] 392                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 460                
Cost [3],[4],[10] (3)                
Fair Value [3],[4],[10] $ 0                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         2,395        
Cost [6],[7],[17]         (6)        
Fair Value [6],[7],[17]         0        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         852        
Cost [6],[7],[17]         (6)        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 16,702 [3],[11],[20]       $ 16,830 [6],[16],[21]        
Cost 16,625 [3],[20]       16,741 [6],[21]        
Fair Value $ 16,702 [3],[20]       $ 16,830 [6],[21]        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 3,451 [3],[11],[20]       $ 1,075 [6],[16],[21]        
Cost 3,443 [3],[20]       1,072 [6],[21]        
Fair Value $ 3,451 [3],[20]       $ 1,075 [6],[21]        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.75% [6],[7],[15] 6.75% [6],[7],[15]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[7],[15] 5.75% [6],[7],[15]      
Principal amount or par value $ 773 [3],[11],[20]       $ 779 [6],[7],[16]        
Cost 768 [3],[20]       773 [6],[7]        
Fair Value $ 773 [3],[20]       $ 779 [6],[7]        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.75% [6],[7],[15] 6.75% [6],[7],[15]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[7],[15] 5.75% [6],[7],[15]      
Principal amount or par value $ 346 [3],[11],[20]       $ 349 [6],[7],[16]        
Cost 345 [3],[20]       347 [6],[7]        
Fair Value $ 346 [3],[20]       $ 349 [6],[7]        
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.75% [6],[7],[15] 6.75% [6],[7],[15]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[7],[15] 5.75% [6],[7],[15]      
Principal amount or par value $ 276 [3],[11],[20]       $ 278 [6],[7],[16]        
Cost 275 [3],[20]       277 [6],[7]        
Fair Value $ 276 [3],[20]       $ 278 [6],[7]        
Investment, Identifier [Axis]: CFS Management, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.73% [3],[9],[20] 9.73% [3],[9],[20] 9.73% [3],[9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Interest Rate Margin 6.25% [3],[9],[20] 6.25% [3],[9],[20] 6.25% [3],[9],[20]   5.50% [6],[15],[21] 5.50% [6],[15],[21]      
Principal amount or par value $ 11,410 [3],[11],[20]       $ 11,497 [6],[16],[21]        
Cost 11,388 [3],[20]       11,466 [6],[21]        
Fair Value $ 10,913 [3],[20]       $ 11,497 [6],[21]        
Investment, Identifier [Axis]: CFS Management, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.73% [3],[9],[20] 9.73% [3],[9],[20] 9.73% [3],[9],[20]   6.50% [6],[7],[15] 6.50% [6],[7],[15]      
Interest Rate Margin 6.25% [3],[9],[20] 6.25% [3],[9],[20] 6.25% [3],[9],[20]   5.50% [6],[7],[15] 5.50% [6],[7],[15]      
Principal amount or par value $ 3,399 [3],[11],[20]       $ 3,425 [6],[7],[16]        
Cost 3,390 [3],[20]       3,413 [6],[7]        
Fair Value $ 3,251 [3],[20]       $ 3,425 [6],[7]        
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.92% [3],[9],[19],[20] 10.92% [3],[9],[19],[20] 10.92% [3],[9],[19],[20]   6.25% [6],[15],[21] 6.25% [6],[15],[21]      
Interest Rate Margin 5.25% [3],[9],[19],[20] 5.25% [3],[9],[19],[20] 5.25% [3],[9],[19],[20]   5.25% [6],[15],[21] 5.25% [6],[15],[21]      
Interest rate PIK [3],[9],[19],[20] 2.00% 2.00% 2.00%            
Principal amount or par value $ 8,296 [3],[11],[20]       $ 8,302 [6],[16],[21]        
Cost 8,219 [3],[20]       8,214 [6],[21]        
Fair Value $ 7,736 [3],[20]       $ 8,209 [6],[21]        
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.37% [3],[4],[9],[10],[19] 10.37% [3],[4],[9],[10],[19] 10.37% [3],[4],[9],[10],[19]   6.25% [6],[7],[15],[17] 6.25% [6],[7],[15],[17]      
Interest Rate Margin 5.25% [3],[4],[9],[10],[19] 5.25% [3],[4],[9],[10],[19] 5.25% [3],[4],[9],[10],[19]   5.25% [6],[7],[15],[17] 5.25% [6],[7],[15],[17]      
Interest rate PIK [3],[4],[9],[10],[19] 2.00% 2.00% 2.00%            
Principal amount or par value $ 912 [3],[4],[10],[11]       $ 906 [6],[7],[16],[17]        
Cost 902 [3],[4],[10]       895 [6],[7],[17]        
Fair Value $ 850 [3],[4],[10]       896 [6],[7],[17]        
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         226        
Cost [6],[7],[17]         (3)        
Fair Value [6],[7],[17]         $ (3)        
Investment, Identifier [Axis]: CHA Holdings, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.42% [3],[9],[12] 12.42% [3],[9],[12] 12.42% [3],[9],[12]   9.75% [6],[15],[24] 9.75% [6],[15],[24]      
Interest Rate Margin 8.75% [3],[9],[12] 8.75% [3],[9],[12] 8.75% [3],[9],[12]   8.75% [6],[15],[24] 8.75% [6],[15],[24]      
Principal amount or par value $ 7,012 [3],[11],[12]       $ 7,012 [6],[16],[24]        
Cost 6,974 [3],[12]       6,967 [6],[24]        
Fair Value $ 6,925 [3],[12]       $ 7,012 [6],[24]        
Investment, Identifier [Axis]: CHA Holdings, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.42% [3],[4],[9] 12.42% [3],[4],[9] 12.42% [3],[4],[9]   9.75% [6],[7],[15] 9.75% [6],[7],[15]      
Interest Rate Margin 8.75% [3],[4],[9] 8.75% [3],[4],[9] 8.75% [3],[4],[9]   8.75% [6],[7],[15] 8.75% [6],[7],[15]      
Principal amount or par value $ 4,453 [3],[4],[11]       $ 4,453 [6],[7],[16]        
Cost 4,429 [3],[4]       4,424 [6],[7]        
Fair Value $ 4,398 [3],[4]       $ 4,453 [6],[7]        
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.37% [3],[4],[9] 10.37% [3],[4],[9] 10.37% [3],[4],[9]   7.35% [6],[7],[15] 7.35% [6],[7],[15]      
Interest Rate Margin 7.25% [3],[4],[9] 7.25% [3],[4],[9] 7.25% [3],[4],[9]   7.25% [6],[7],[15] 7.25% [6],[7],[15]      
Principal amount or par value $ 18,266 [3],[4],[11]       $ 18,266 [6],[7],[16]        
Cost 18,226 [3],[4]       18,221 [6],[7]        
Fair Value $ 17,637 [3],[4]       $ 18,266 [6],[7]        
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.37% [3],[9],[13] 10.37% [3],[9],[13] 10.37% [3],[9],[13]   7.35% [6],[14],[15] 7.35% [6],[14],[15]      
Interest Rate Margin 7.25% [3],[9],[13] 7.25% [3],[9],[13] 7.25% [3],[9],[13]   7.25% [6],[14],[15] 7.25% [6],[14],[15]      
Principal amount or par value $ 7,500 [3],[11],[13]       $ 7,500 [6],[14],[16]        
Cost 7,484 [3],[13]       7,481 [6],[14]        
Fair Value $ 7,242 [3],[13]       $ 7,500 [6],[14]        
Investment, Identifier [Axis]: Calabrio, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.67% [3],[9],[35] 10.67% [3],[9],[35] 10.67% [3],[9],[35]   8.00% [6],[15],[36] 8.00% [6],[15],[36]      
Interest Rate Margin 7.00% [3],[9],[35] 7.00% [3],[9],[35] 7.00% [3],[9],[35]   7.00% [6],[15],[36] 7.00% [6],[15],[36]      
Principal amount or par value $ 12,347 [3],[11],[35]       $ 12,347 [6],[16],[36]        
Cost 12,273 [3],[35]       12,263 [6],[36]        
Fair Value 12,347 [3],[35]       12,271 [6],[36]        
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,487 [3],[4],[10],[11]       1,487 [6],[7],[16],[17]        
Cost (11) [3],[4],[10]       (11) [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ (9) [6],[7],[17]        
Investment, Identifier [Axis]: Cardinal Parent, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% [9],[12] 8.17% [9],[12] 8.17% [9],[12]   5.25% [15],[24] 5.25% [15],[24]      
Interest Rate Margin 4.50% [9],[12] 4.50% [9],[12] 4.50% [9],[12]   4.50% [15],[24] 4.50% [15],[24]      
Principal amount or par value $ 12,005 [11],[12]       $ 12,096 [16],[24]        
Cost 11,935 [12]       12,017 [24]        
Fair Value $ 11,434 [12]       $ 12,083 [24]        
Investment, Identifier [Axis]: Cardinal Parent, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.42% [3],[9],[12] 11.42% [3],[9],[12] 11.42% [3],[9],[12]   8.50% [6],[15],[24] 8.50% [6],[15],[24]      
Interest Rate Margin 7.75% [3],[9],[12] 7.75% [3],[9],[12] 7.75% [3],[9],[12]   7.75% [6],[15],[24] 7.75% [6],[15],[24]      
Principal amount or par value $ 9,767 [3],[11],[12]       $ 9,767 [6],[16],[24]        
Cost 9,686 [3],[12]       9,679 [6],[24]        
Fair Value $ 9,767 [3],[12]       $ 9,864 [6],[24]        
Investment, Identifier [Axis]: Castle Management Borrower LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 3.19% [3],[9],[20] 3.19% [3],[9],[20] 3.19% [3],[9],[20]   3.19% [6],[15],[21] 3.19% [6],[15],[21]      
Interest Rate Margin 1.00% [3],[9],[20] 1.00% [3],[9],[20] 1.00% [3],[9],[20]   2.19% [6],[15],[21] 2.19% [6],[15],[21]      
Principal amount or par value $ 14,440 [3],[11],[20]       $ 14,590 [6],[16],[21]        
Cost 14,418 [3],[20]       14,561 [6],[21]        
Fair Value $ 13,550 [3],[20]       $ 12,794 [6],[21]        
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.17% [4],[9] 11.17% [4],[9] 11.17% [4],[9]   7.72% [7],[15] 7.72% [7],[15]      
Interest Rate Margin 7.50% [4],[9] 7.50% [4],[9] 7.50% [4],[9]   7.50% [7],[15] 7.50% [7],[15]      
Principal amount or par value $ 47,838 [4],[11]       $ 47,838 [7],[16]        
Cost 47,487 [4]       47,431 [7]        
Fair Value $ 42,177 [4]       $ 43,293 [7]        
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.17% [9],[13] 11.17% [9],[13] 11.17% [9],[13]   7.72% [14],[15] 7.72% [14],[15]      
Interest Rate Margin 7.50% [9],[13] 7.50% [9],[13] 7.50% [9],[13]   7.50% [14],[15] 7.50% [14],[15]      
Principal amount or par value $ 7,500 [11],[13]       $ 7,500 [14],[16]        
Cost 7,445 [13]       7,436 [14]        
Fair Value $ 6,613 [13]       $ 6,788 [14]        
Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         5.00% 5.00%      
Interest Rate Margin [6],[15],[21]         4.00% 4.00%      
Principal amount or par value [6],[16],[21]         $ 2,872        
Cost [6],[21]         2,869        
Fair Value [6],[21]         2,872        
Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         1,000        
Cost [6],[7],[17]         (5)        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         10.25% 10.25%      
Interest Rate Margin [6],[14],[15]         9.25% 9.25%      
Principal amount or par value [6],[14],[16]         $ 7,840        
Cost [6],[14]         7,824        
Fair Value [6],[14]         $ 7,840        
Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15]         10.25% 10.25%      
Interest Rate Margin [6],[7],[15]         9.25% 9.25%      
Principal amount or par value [6],[7],[16]         $ 2,160        
Cost [6],[7]         2,155        
Fair Value [6],[7]         $ 2,160        
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.88% 8.88% 8.88%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 7,181                
Cost [3],[20] 7,115                
Fair Value [3],[20] 7,066                
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 425                
Cost [3],[4],[10] (4)                
Fair Value [3],[4],[10] (7)                
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 849                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] $ (14)                
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[24]         5.50% 5.50%      
Interest Rate Margin [6],[15],[24]         4.75% 4.75%      
Principal amount or par value [6],[16],[24]         $ 19,263        
Cost [6],[24]         19,108        
Fair Value [6],[24],[32]         19,263        
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 7.87% 7.87% 7.87%            
Interest Rate Margin [3],[9],[12] 4.75% 4.75% 4.75%            
Principal amount or par value [3],[11],[12] $ 19,263                
Cost [3],[12] 19,132                
Fair Value [3],[12] $ 18,945                
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 7.87% 7.87% 7.87%            
Interest Rate Margin [3],[9],[12] 4.75% 4.75% 4.75%            
Principal amount or par value [3],[11],[12] $ 3,217                
Cost [3],[12] 3,175                
Fair Value [3],[12] 3,163                
Investment, Identifier [Axis]: Coyote Buyer, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,013 [3],[4],[10],[11]       1,013 [6],[7],[16],[17]        
Cost (5) [3],[4],[10]       (5) [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: Coyote Buyer, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.81% [3],[9],[35] 8.81% [3],[9],[35] 8.81% [3],[9],[35]   7.00% [6],[15],[36] 7.00% [6],[15],[36]      
Interest Rate Margin 6.00% [3],[9],[35] 6.00% [3],[9],[35] 6.00% [3],[9],[35]   6.00% [6],[15],[36] 6.00% [6],[15],[36]      
Principal amount or par value $ 13,830 [3],[11],[35]       $ 13,937 [6],[16],[36]        
Cost 13,788 [3],[35]       13,885 [6],[36]        
Fair Value $ 13,830 [3],[35]       $ 13,937 [6],[36]        
Investment, Identifier [Axis]: Coyote Buyer, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.67% [3],[9],[35] 11.67% [3],[9],[35] 11.67% [3],[9],[35]   9.00% [6],[15],[36] 9.00% [6],[15],[36]      
Interest Rate Margin 8.00% [3],[9],[35] 8.00% [3],[9],[35] 8.00% [3],[9],[35]   8.00% [6],[15],[36] 8.00% [6],[15],[36]      
Principal amount or par value $ 2,489 [3],[11],[35]       $ 2,507 [6],[16],[36]        
Cost 2,471 [3],[35]       2,488 [6],[36]        
Fair Value $ 2,489 [3],[35]       $ 2,507 [6],[36]        
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         7.00% 7.00%      
Interest Rate Margin [15],[21]         6.25% 6.25%      
Principal amount or par value [16],[21]         $ 19,878        
Cost [21]         19,746        
Fair Value [21]         $ 19,803        
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.98% [3],[4],[9],[10] 9.98% [3],[4],[9],[10] 9.98% [3],[4],[9],[10]   7.00% [7],[15],[17] 7.00% [7],[15],[17]      
Interest Rate Margin 6.00% [3],[4],[9],[10] 6.00% [3],[4],[9],[10] 6.00% [3],[4],[9],[10]   6.25% [7],[15],[17] 6.25% [7],[15],[17]      
Principal amount or par value $ 1,644 [3],[4],[10],[11]       $ 1,919 [7],[16],[17]        
Cost 1,636 [3],[4],[10]       1,905 [7],[17]        
Fair Value 1,642 [3],[4],[10]       1,912 [7],[17]        
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,642 [3],[4],[10],[11]       3,005 [7],[16],[17]        
Cost 0 [3],[4],[10]       0 [7],[17]        
Fair Value $ (1) [3],[4],[10]       $ (11) [7],[17]        
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.98% 9.98% 9.98%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 19,714                
Cost [3],[20] 19,596                
Fair Value [3],[20] $ 19,696                
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.98% 9.98% 9.98%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 7,063                
Cost [3],[20] 7,031                
Fair Value [3],[20] $ 7,057                
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 9.98% 9.98% 9.98%            
Interest Rate Margin [3],[4],[9] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[4],[11] $ 3,281                
Cost [3],[4] 3,259                
Fair Value [3],[4] $ 3,278                
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.87% [4],[9] 9.87% [4],[9] 9.87% [4],[9]   7.50% [7],[15] 7.50% [7],[15]      
Interest Rate Margin 6.75% [4],[9] 6.75% [4],[9] 6.75% [4],[9]   6.75% [7],[15] 6.75% [7],[15]      
Principal amount or par value $ 20,313 [4],[11]       $ 20,313 [7],[16]        
Cost 20,269 [4]       20,265 [7]        
Fair Value 19,049 [4]       $ 20,465 [7]        
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 2,405                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] (7)                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[10],[11],[12] 2,457                
Cost [3],[10],[12] 0                
Fair Value [3],[10],[12] (7)                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 6,561                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] $ (19)                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.85% 8.85% 8.85%            
Interest Rate Margin [3],[9],[13] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[13] $ 18,760                
Cost [3],[13] 18,760                
Fair Value [3],[13] $ 18,706                
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 8.85% 8.85% 8.85%            
Interest Rate Margin [3],[9],[12] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[12] $ 7,025                
Cost [3],[12] 7,025                
Fair Value [3],[12] 7,005                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         6.25% 6.25%      
Interest Rate Margin [6],[14],[15]         5.50% 5.50%      
Principal amount or par value [6],[14],[16]         $ 13,277        
Cost [6],[14]         13,147        
Fair Value [6],[14]         13,144        
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 524 [3],[4],[10],[11]       986 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       (10) [6],[7],[17]        
Fair Value (15) [3],[4],[10]       (10) [6],[7],[17]        
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 986 [3],[4],[10],[11]       1,638 [6],[7],[16],[17]        
Cost (10) [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ (26) [3],[4],[10]       (16) [6],[7],[17]        
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[13] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[13] $ 13,177                
Cost [3],[13] 13,060                
Fair Value [3],[13] $ 12,808                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[20] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[20] $ 1,110                
Cost [3],[20] 1,100                
Fair Value [3],[20] 1,079                
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC, Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 60,360 [3],[4],[37]       60,360 [6],[7],[38]        
Fair Value $ 59,862 [3],[4],[37]       $ 60,180 [6],[7],[38]        
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.50% 6.50%      
Interest Rate Margin [6],[7],[15],[17]         5.75% 5.75%      
Principal amount or par value [6],[7],[16],[17]         $ 4,026        
Cost [6],[7],[17]         3,985        
Fair Value [6],[7],[17]         $ 3,985        
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.42% [3],[9],[20] 9.42% [3],[9],[20] 9.42% [3],[9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 37,956 [3],[11],[20]       $ 38,244 [6],[16],[21]        
Cost 37,625 [3],[20]       37,877 [6],[21]        
Fair Value $ 37,220 [3],[20]       37,861 [6],[21]        
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 3,995                
Cost [3],[4],[10] 3,959                
Fair Value [3],[4],[10] $ 3,918                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 1,413                
Cost [3],[4],[10] 1,398                
Fair Value [3],[4],[10] 1,385                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,614 [3],[4],[10],[11]       3,027 [6],[7],[16],[17]        
Cost (16) [3],[4],[10]       (30) [6],[7],[17]        
Fair Value (31) [3],[4],[10]       (30) [6],[7],[17]        
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 9,080 [3],[4],[10],[11]       9,080 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ (176) [3],[4],[10]       (91) [6],[7],[17]        
Investment, Identifier [Axis]: Diligent Corporation, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.49% 8.49% 8.49%            
Interest Rate Margin [3],[4],[9],[10] 6.25% 6.25% 6.25%            
Principal amount or par value [3],[4],[10],[11] $ 1,812                
Cost [3],[4],[10] 1,803                
Fair Value [3],[4],[10] 1,812                
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,812 [3],[4],[10],[11],[39]       3,624 [6],[7],[16],[17],[40]        
Cost (9) [3],[4],[10],[39]       (18) [6],[7],[17],[40]        
Fair Value $ 0 [3],[4],[10],[39]       $ 0 [6],[7],[17],[40]        
Investment, Identifier [Axis]: Diligent Corporation, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.63% [3],[9],[20] 8.63% [3],[9],[20] 8.63% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 17,628 [3],[11],[20]       $ 17,762 [6],[16],[21]        
Cost 17,567 [3],[20]       17,687 [6],[21]        
Fair Value $ 17,415 [3],[20]       $ 17,673 [6],[21]        
Investment, Identifier [Axis]: Diligent Corporation, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.63% [3],[9],[20] 8.63% [3],[9],[20] 8.63% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 9,830 [3],[11],[20]       $ 9,905 [6],[16],[21]        
Cost 9,797 [3],[20]       9,863 [6],[21]        
Fair Value $ 9,713 [3],[20]       $ 9,855 [6],[21]        
Investment, Identifier [Axis]: Diligent Corporation, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.13% [3],[4],[9] 9.13% [3],[4],[9] 9.13% [3],[4],[9]   7.25% [6],[7],[15] 7.25% [6],[7],[15]      
Interest Rate Margin 6.25% [3],[4],[9] 6.25% [3],[4],[9] 6.25% [3],[4],[9]   6.25% [6],[7],[15] 6.25% [6],[7],[15]      
Principal amount or par value $ 5,842 [3],[4],[11]       $ 5,887 [6],[7],[16]        
Cost 5,820 [3],[4]       5,860 [6],[7]        
Fair Value 5,842 [3],[4]       5,945 [6],[7]        
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc., Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 11,518 [3],[4],[39]       10,386 [6],[7],[40]        
Fair Value $ 11,304 [3],[4],[39]       $ 10,379 [6],[7],[40]        
Investment, Identifier [Axis]: EAB Global, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.92% [3],[9],[20] 8.92% [3],[9],[20] 8.92% [3],[9],[20]   7.00% [6],[15],[21] 7.00% [6],[15],[21]      
Interest Rate Margin 6.50% [3],[9],[20] 6.50% [3],[9],[20] 6.50% [3],[9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Principal amount or par value $ 33,452 [3],[11],[20]       $ 33,452 [6],[16],[21]        
Cost 33,005 [3],[20]       32,969 [6],[21]        
Fair Value $ 32,392 [3],[20]       $ 32,951 [6],[21]        
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC, Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.00% [3],[4],[9],[19] 13.00% [3],[4],[9],[19] 13.00% [3],[4],[9],[19]   13.00% [6],[7],[15],[18] 13.00% [6],[7],[15],[18]      
Interest Rate Margin 6.50% [3],[4],[9],[19] 6.50% [3],[4],[9],[19] 6.50% [3],[4],[9],[19]   6.50% [6],[7],[15],[18] 6.50% [6],[7],[15],[18]      
Interest rate PIK 6.50% [3],[4],[9],[19] 6.50% [3],[4],[9],[19] 6.50% [3],[4],[9],[19]   6.50% [6],[7],[15],[18] 6.50% [6],[7],[15],[18]      
Principal amount or par value $ 16,207 [3],[4],[11],[41]       $ 15,434 [6],[7],[16],[42]        
Cost 16,090 [3],[4],[41]       15,302 [6],[7],[42]        
Fair Value 16,207 [3],[4],[41]       15,841 [6],[7],[42]        
Investment, Identifier [Axis]: Education Management Corporation, Ordinary shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [21]         100        
Fair Value [21]         0        
Investment, Identifier [Axis]: Education Management Corporation, Ordinary shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [7]         56        
Fair Value [7]         0        
Investment, Identifier [Axis]: Education Management Corporation, Preferred shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 200 [20]       200 [21]        
Fair Value 0 [20]       0 [21]        
Investment, Identifier [Axis]: Education Management Corporation, Preferred shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 113 [4]       113 [7]        
Fair Value 0 [4]       $ 0 [7]        
Investment, Identifier [Axis]: Education Management Corporation, Preferred shares 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [20] 100                
Fair Value [20] 0                
Investment, Identifier [Axis]: Education Management Corporation, Preferred shares 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [4] 56                
Fair Value [4] $ 0                
Investment, Identifier [Axis]: Education Management II LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.00% [9],[20],[25] 13.00% [9],[20],[25] 13.00% [9],[20],[25]   13.00% [15],[21],[26] 13.00% [15],[21],[26]      
Interest Rate Margin 7.50% [9],[20],[25] 7.50% [9],[20],[25] 7.50% [9],[20],[25]   7.50% [15],[21],[26] 7.50% [15],[21],[26]      
Principal amount or par value $ 300 [11],[20]       $ 300 [16],[21]        
Cost 292 [20]       292 [21]        
Fair Value $ 0 [20]       $ 0 [21]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.00% [4],[9],[25] 13.00% [4],[9],[25] 13.00% [4],[9],[25]   13.00% [7],[15],[26] 13.00% [7],[15],[26]      
Interest Rate Margin 7.50% [4],[9],[25] 7.50% [4],[9],[25] 7.50% [4],[9],[25]   7.50% [7],[15],[26] 7.50% [7],[15],[26]      
Principal amount or par value $ 169 [4],[11]       $ 169 [7],[16]        
Cost 165 [4]       165 [7]        
Fair Value $ 0 [4]       $ 0 [7]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.75% [9],[20],[25] 9.75% [9],[20],[25] 9.75% [9],[20],[25]   9.75% [15],[21],[26] 9.75% [15],[21],[26]      
Interest Rate Margin 6.50% [9],[20],[25] 6.50% [9],[20],[25] 6.50% [9],[20],[25]   6.50% [15],[21],[26] 6.50% [15],[21],[26]      
Principal amount or par value $ 206 [11],[20]       $ 206 [16],[21]        
Cost 200 [20]       201 [21]        
Fair Value $ 0 [20]       $ 0 [21]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.75% [4],[9],[25] 9.75% [4],[9],[25] 9.75% [4],[9],[25]   9.75% [7],[15],[26] 9.75% [7],[15],[26]      
Interest Rate Margin 6.50% [4],[9],[25] 6.50% [4],[9],[25] 6.50% [4],[9],[25]   6.50% [7],[15],[26] 6.50% [7],[15],[26]      
Principal amount or par value $ 116 [4],[11]       $ 116 [7],[16]        
Cost 113 [4]       113 [7]        
Fair Value $ 0 [4]       $ 0 [7]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.75% [9],[20],[25] 11.75% [9],[20],[25] 11.75% [9],[20],[25]   11.75% [15],[21],[26] 11.75% [15],[21],[26]      
Interest Rate Margin 8.50% [9],[20],[25] 8.50% [9],[20],[25] 8.50% [9],[20],[25]   8.50% [15],[21],[26] 8.50% [15],[21],[26]      
Principal amount or par value $ 140 [11],[20]       $ 140 [16],[21]        
Cost 116 [20]       116 [21]        
Fair Value $ 0 [20]       $ 0 [21]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 6                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.75% [4],[9],[25] 11.75% [4],[9],[25] 11.75% [4],[9],[25]   11.75% [7],[15],[26] 11.75% [7],[15],[26]      
Interest Rate Margin 8.50% [4],[9],[25] 8.50% [4],[9],[25] 8.50% [4],[9],[25]   8.50% [7],[15],[26] 8.50% [7],[15],[26]      
Principal amount or par value $ 79 [4],[11]       $ 79 [7],[16]        
Cost 65 [4]       65 [7]        
Fair Value $ 0 [4]       $ 0 [7]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 7                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.75% [9],[20],[25] 11.75% [9],[20],[25] 11.75% [9],[20],[25]   11.75% [15],[21],[26] 11.75% [15],[21],[26]      
Interest Rate Margin 8.50% [9],[20],[25] 8.50% [9],[20],[25] 8.50% [9],[20],[25]   8.50% [15],[21],[26] 8.50% [15],[21],[26]      
Principal amount or par value $ 4 [11],[20]       $ 4 [16],[21]        
Cost 3 [20]       3 [21]        
Fair Value $ 0 [20]       $ 0 [21]        
Investment, Identifier [Axis]: Education Management II LLC, First lien 8                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.75% [4],[9],[25] 11.75% [4],[9],[25] 11.75% [4],[9],[25]   11.75% [7],[15],[26] 11.75% [7],[15],[26]      
Interest Rate Margin 8.50% [4],[9],[25] 8.50% [4],[9],[25] 8.50% [4],[9],[25]   8.50% [7],[15],[26] 8.50% [7],[15],[26]      
Principal amount or par value $ 2 [4],[11]       $ 2 [7],[16]        
Cost 2 [4]       2 [7]        
Fair Value 0 [4]       $ 0 [7]        
Investment, Identifier [Axis]: Education Management II LLC, First lien, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 956                
Fair Value $ 0                
Investment, Identifier [Axis]: Energize Holdco LLC, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.87% [3],[9],[20] 9.87% [3],[9],[20] 9.87% [3],[9],[20]   7.25% [15],[21] 7.25% [15],[21]      
Interest Rate Margin 6.75% [3],[9],[20] 6.75% [3],[9],[20] 6.75% [3],[9],[20]   6.75% [15],[21] 6.75% [15],[21]      
Principal amount or par value $ 7,950 [3],[11],[20]       $ 7,950 [16],[21]        
Cost 7,913 [3],[20]       7,910 [21]        
Fair Value $ 7,530 [3],[20]       $ 7,910 [21]        
Investment, Identifier [Axis]: FR Arsenal Holdings II Corp., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.19% [3],[9],[19],[20] 12.19% [3],[9],[19],[20] 12.19% [3],[9],[19],[20]   8.50% [6],[15],[21] 8.50% [6],[15],[21]      
Interest Rate Margin 7.50% [3],[9],[19],[20] 7.50% [3],[9],[19],[20] 7.50% [3],[9],[19],[20]   7.50% [6],[15],[21] 7.50% [6],[15],[21]      
Interest rate PIK [3],[9],[19],[20] 2.00% 2.00% 2.00%            
Principal amount or par value $ 14,622 [3],[11],[20]       $ 14,884 [6],[16],[21]        
Cost 14,620 [3],[20]       14,861 [6],[21]        
Fair Value $ 12,553 [3],[20]       $ 14,520 [6],[21]        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[36]         6.50% 6.50%      
Interest Rate Margin [15],[36]         5.75% 5.75%      
Principal amount or par value [16],[36]         $ 10,500        
Cost [36]         10,395        
Fair Value [36]         $ 10,395        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[17],[36]         6.50% 6.50%      
Interest Rate Margin [15],[17],[36]         5.75% 5.75%      
Principal amount or par value [16],[17],[36]         $ 2,618        
Cost [17],[36]         2,592        
Fair Value [17],[36]         2,592        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.39% 9.39% 9.39%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 280                
Cost [3],[4],[10] 277                
Fair Value [3],[4],[10] $ 277                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[4],[9],[10] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[4],[10],[11] $ 14                
Cost [3],[4],[10] 71                
Fair Value [3],[4],[10] 14                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,120 [3],[4],[10],[11]       882 [16],[17],[36]        
Cost (11) [3],[4],[10]       0 [17],[36]        
Fair Value (11) [3],[4],[10]       (9) [17],[36]        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 5,741 [3],[4],[10],[11]       1,400 [7],[16],[17]        
Cost (57) [3],[4],[10]       (14) [7],[17]        
Fair Value $ (57) [3],[4],[10]       (14) [7],[17]        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [16],[17],[36]         3,500        
Cost [17],[36]         0        
Fair Value [17],[36]         (35)        
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[9],[35] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[35] $ 10,421                
Cost [3],[35] 10,328                
Fair Value [3],[35] $ 10,317                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[9],[35] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[35] $ 3,498                
Cost [3],[35] 3,464                
Fair Value [3],[35] $ 3,463                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 9.42% 9.42% 9.42%            
Interest Rate Margin [3],[9],[35] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[35] $ 3,476                
Cost [3],[35] 3,445                
Fair Value [3],[35] 3,441                
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC, Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 5,000 [3],[35],[43]       5,000 [36],[44]        
Fair Value $ 5,000 [3],[35],[43]       5,000 [36],[44]        
Investment, Identifier [Axis]: Foreside Financial Group, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[20] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[20] $ 32,048                
Cost [3],[20] 31,745                
Fair Value [3],[20] $ 31,728                
Investment, Identifier [Axis]: Foreside Financial Group, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[4],[9] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[4],[11] $ 314                
Cost [3],[4] 310                
Fair Value [3],[4] 310                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 2,095                
Cost [3],[4],[10] (21)                
Fair Value [3],[4],[10] (21)                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 6,670                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] $ (67)                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.67% 9.67% 9.67%            
Interest Rate Margin [3],[4],[9],[10] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[4],[10],[11] $ 191                
Cost [3],[4],[10] 189                
Fair Value [3],[4],[10] 189                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 958 [3],[4],[10],[11]       2,861 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       (29) [6],[7],[17]        
Fair Value (10) [3],[4],[10]       (29) [6],[7],[17]        
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,670 [3],[4],[10],[11]       8,343 [6],[7],[16],[17]        
Cost (27) [3],[4],[10]       0 [6],[7],[17]        
Fair Value (28) [3],[4],[10]       $ (83) [6],[7],[17]        
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 4,886                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] $ (51)                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.67% [3],[9],[20] 9.67% [3],[9],[20] 9.67% [3],[9],[20]   6.25% [6],[14],[15] 6.25% [6],[14],[15]      
Interest Rate Margin 5.50% [3],[9],[20] 5.50% [3],[9],[20] 5.50% [3],[9],[20]   5.50% [6],[14],[15] 5.50% [6],[14],[15]      
Principal amount or par value $ 17,574 [3],[11],[20]       $ 10,298 [6],[14],[16]        
Cost 17,413 [3],[20]       10,198 [6],[14]        
Fair Value $ 17,391 [3],[20]       $ 10,195 [6],[14]        
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.67% [3],[9],[13] 9.67% [3],[9],[13] 9.67% [3],[9],[13]   6.25% [6],[15],[21] 6.25% [6],[15],[21]      
Interest Rate Margin 5.50% [3],[9],[13] 5.50% [3],[9],[13] 5.50% [3],[9],[13]   5.50% [6],[15],[21] 5.50% [6],[15],[21]      
Principal amount or par value $ 10,221 [3],[11],[13]       $ 10,298 [6],[16],[21]        
Cost 10,130 [3],[13]       10,198 [6],[21]        
Fair Value $ 10,115 [3],[13]       $ 10,195 [6],[21]        
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.31% [3],[9],[35] 10.31% [3],[9],[35] 10.31% [3],[9],[35]   7.00% [15],[36] 7.00% [15],[36]      
Interest Rate Margin 6.50% [3],[9],[35] 6.50% [3],[9],[35] 6.50% [3],[9],[35]   6.50% [15],[36] 6.50% [15],[36]      
Principal amount or par value $ 22,500 [3],[11],[35]       $ 22,500 [16],[36]        
Cost 22,400 [3],[35]       22,391 [36]        
Fair Value $ 21,533 [3],[35]       $ 22,500 [36]        
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.31% [3],[9],[20] 10.31% [3],[9],[20] 10.31% [3],[9],[20]   7.00% [15],[21] 7.00% [15],[21]      
Interest Rate Margin 6.50% [3],[9],[20] 6.50% [3],[9],[20] 6.50% [3],[9],[20]   6.50% [15],[21] 6.50% [15],[21]      
Principal amount or par value $ 7,009 [3],[11],[20]       $ 5,009 [16],[21]        
Cost 6,986 [3],[20]       4,985 [21]        
Fair Value $ 6,708 [3],[20]       $ 5,009 [21]        
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First Lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [9],[12] 11.00% 11.00% 11.00%            
Interest Rate Margin [9],[12] 4.75% 4.75% 4.75%            
Principal amount or par value [11],[12] $ 21,447                
Cost [12] 21,417                
Fair Value [12] $ 21,447                
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First Lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [9],[20] 11.00% 11.00% 11.00%            
Interest Rate Margin [9],[20] 4.75% 4.75% 4.75%            
Principal amount or par value [11],[20] $ 8,074                
Cost [20] 8,073                
Fair Value [20] $ 8,074                
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First Lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [9],[20] 11.00% 11.00% 11.00%            
Interest Rate Margin [9],[20] 4.75% 4.75% 4.75%            
Principal amount or par value [11],[20] $ 7,461                
Cost [20] 7,447                
Fair Value [20] $ 7,461                
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First Lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [9],[20] 11.00% 11.00% 11.00%            
Interest Rate Margin [9],[20] 4.75% 4.75% 4.75%            
Principal amount or par value [11],[20] $ 4,969                
Cost [20] 4,969                
Fair Value [20] $ 4,969                
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[24]         6.25% 6.25%      
Interest Rate Margin [6],[15],[24]         5.25% 5.25%      
Principal amount or par value [6],[16],[24]         $ 21,718        
Cost [6],[24]         21,664        
Fair Value [6],[24]         $ 21,718        
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.25% 6.25%      
Interest Rate Margin [6],[15],[21]         5.25% 5.25%      
Principal amount or par value [6],[16],[21]         $ 18,303        
Cost [6],[21]         18,275        
Fair Value [6],[21]         $ 18,303        
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.25% 6.25%      
Interest Rate Margin [6],[15],[21]         5.25% 5.25%      
Principal amount or par value [6],[16],[21]         $ 7,555        
Cost [6],[21]         7,530        
Fair Value [6],[21]         $ 7,555        
Investment, Identifier [Axis]: Frontline Technologies Group Holdings, LLC, First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.25% 6.25%      
Interest Rate Margin [6],[15],[21]         5.25% 5.25%      
Principal amount or par value [6],[16],[21]         $ 5,031        
Cost [6],[21]         5,031        
Fair Value [6],[21]         $ 5,031        
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First Lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[4],[9],[10] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[4],[10],[11] $ 4,486                
Cost [3],[4],[10] 4,442                
Fair Value [3],[4],[10] $ 4,432                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First Lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[35] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[35] $ 21,941                
Cost [3],[35] 21,843                
Fair Value [3],[35] $ 21,678                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First Lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[20] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[20] $ 13,244                
Cost [3],[20] 13,164                
Fair Value [3],[20] $ 13,086                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First Lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.62% 8.62% 8.62%            
Interest Rate Margin [3],[9],[20] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[20] $ 10,577                
Cost [3],[20] 10,485                
Fair Value [3],[20] 10,449                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[17],[21]         6.25% 6.25%      
Interest Rate Margin [6],[15],[17],[21]         5.50% 5.50%      
Principal amount or par value [6],[16],[17],[21]         $ 5,643        
Cost [6],[17],[21]         5,588        
Fair Value [6],[17],[21]         5,643        
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,951 [3],[4],[10],[11]       4,991 [6],[16],[17],[21]        
Cost (30) [3],[4],[10]       0 [6],[17],[21]        
Fair Value (47) [3],[4],[10]       0 [6],[17],[21]        
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 12,920 [3],[4],[10],[11]       3,951 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       (30) [6],[7],[17]        
Fair Value $ (155) [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[36]         6.25% 6.25%      
Interest Rate Margin [6],[15],[36]         5.50% 5.50%      
Principal amount or par value [6],[16],[36]         $ 22,108        
Cost [6],[36]         21,993        
Fair Value [6],[36]         $ 22,108        
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.25% 6.25%      
Interest Rate Margin [6],[15],[21]         5.50% 5.50%      
Principal amount or par value [6],[16],[21]         $ 13,345        
Cost [6],[21]         13,250        
Fair Value [6],[21]         $ 13,345        
Investment, Identifier [Axis]: GEMS Menasa (Cayman) Limited, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [14],[15]         6.00% 6.00%      
Interest Rate Margin [14],[15]         5.00% 5.00%      
Principal amount or par value [14],[16]         $ 10,534        
Cost [14]         10,496        
Fair Value [14],[32]         $ 10,589        
Investment, Identifier [Axis]: GS Acquisitionco, Inc, First Lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.92% 9.92% 9.92%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 4,142                
Cost [3],[4],[10] 4,116                
Fair Value [3],[4],[10] $ 4,105                
Investment, Identifier [Axis]: GS Acquisitionco, Inc, First Lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.92% 9.92% 9.92%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 67,448                
Cost [3],[20] 67,234                
Fair Value [3],[20] $ 66,846                
Investment, Identifier [Axis]: GS Acquisitionco, Inc, First Lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 9.92% 9.92% 9.92%            
Interest Rate Margin [3],[9],[35] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[35] $ 21,801                
Cost [3],[35] 21,735                
Fair Value [3],[35] $ 21,607                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.75% 6.75%      
Interest Rate Margin [6],[7],[15],[17]         5.75% 5.75%      
Principal amount or par value [6],[7],[16],[17]         $ 2,811        
Cost [6],[7],[17]         2,793        
Fair Value [6],[7],[17]         2,811        
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         3,106        
Cost [6],[7],[17]         (19)        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.75% 6.75%      
Interest Rate Margin [6],[15],[21]         5.75% 5.75%      
Principal amount or par value [6],[16],[21]         $ 67,966        
Cost [6],[21]         67,713        
Fair Value [6],[21]         $ 67,966        
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[36]         6.75% 6.75%      
Interest Rate Margin [6],[15],[36]         5.75% 5.75%      
Principal amount or par value [6],[16],[36]         $ 21,968        
Cost [6],[36]         21,891        
Fair Value [6],[36]         21,968        
Investment, Identifier [Axis]: Galway Borrower LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         1,865        
Cost [6],[7],[17]         (19)        
Fair Value [6],[7],[17]         (19)        
Investment, Identifier [Axis]: Galway Borrower LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         3,917        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         $ (39)        
Investment, Identifier [Axis]: Galway Borrower LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.00% 6.00%      
Interest Rate Margin [6],[15],[21]         5.25% 5.25%      
Principal amount or par value [6],[16],[21]         $ 24,279        
Cost [6],[21]         24,043        
Fair Value [6],[21]         $ 24,036        
Investment, Identifier [Axis]: Galway Borrower LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15]         6.00% 6.00%      
Interest Rate Margin [6],[7],[15]         5.25% 5.25%      
Principal amount or par value [6],[7],[16]         $ 1,674        
Cost [6],[7]         1,658        
Fair Value [6],[7]         $ 1,658        
Investment, Identifier [Axis]: Geo Parent Corporation, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         5.35% 5.35%      
Interest Rate Margin [15],[21]         5.25% 5.25%      
Principal amount or par value [16],[21]         $ 9,810        
Cost [21]         9,780        
Fair Value [21]         $ 9,761        
Investment, Identifier [Axis]: Granicus, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.17% [3],[9],[10],[20] 10.17% [3],[9],[10],[20] 10.17% [3],[9],[10],[20]   7.00% [6],[7],[15],[17] 7.00% [6],[7],[15],[17]      
Interest Rate Margin 6.00% [3],[9],[10],[20] 6.00% [3],[9],[10],[20] 6.00% [3],[9],[10],[20]   6.00% [6],[7],[15],[17] 6.00% [6],[7],[15],[17]      
Principal amount or par value $ 2,758 [3],[10],[11],[20]       $ 2,778 [6],[7],[16],[17]        
Cost 2,735 [3],[10],[20]       2,752 [6],[7],[17]        
Fair Value 2,758 [3],[10],[20]       2,751 [6],[7],[17]        
Investment, Identifier [Axis]: Granicus, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,822 [3],[10],[11],[20]       2,414 [6],[7],[16],[17]        
Cost 0 [3],[10],[20]       (18) [6],[7],[17]        
Fair Value 0 [3],[10],[20]       (18) [6],[7],[17]        
Investment, Identifier [Axis]: Granicus, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,414 [3],[4],[10],[11]       1,822 [6],[7],[16],[17]        
Cost (18) [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ (18) [6],[7],[17]        
Investment, Identifier [Axis]: Granicus, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.67% [3],[9],[12] 10.67% [3],[9],[12] 10.67% [3],[9],[12]   7.50% [6],[15],[24] 7.50% [6],[15],[24]      
Interest Rate Margin 6.50% [3],[9],[12] 6.50% [3],[9],[12] 6.50% [3],[9],[12]   6.50% [6],[15],[24] 6.50% [6],[15],[24]      
Principal amount or par value $ 15,405 [3],[11],[12]       $ 15,522 [6],[16],[24]        
Cost 15,316 [3],[12]       15,420 [6],[24]        
Fair Value $ 15,405 [3],[12]       $ 15,406 [6],[24]        
Investment, Identifier [Axis]: Granicus, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.67% [3],[9],[13] 10.67% [3],[9],[13] 10.67% [3],[9],[13]   7.50% [6],[7],[15] 7.50% [6],[7],[15]      
Interest Rate Margin 6.50% [3],[9],[13] 6.50% [3],[9],[13] 6.50% [3],[9],[13]   6.50% [6],[7],[15] 6.50% [6],[7],[15]      
Principal amount or par value $ 5,959 [3],[11],[13]       $ 6,004 [6],[7],[16]        
Cost 5,923 [3],[13]       5,963 [6],[7]        
Fair Value $ 5,959 [3],[13]       $ 5,959 [6],[7]        
Investment, Identifier [Axis]: Granicus, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.67% [3],[9],[20] 10.67% [3],[9],[20] 10.67% [3],[9],[20]   7.50% [6],[15],[21] 7.50% [6],[15],[21]      
Interest Rate Margin 6.50% [3],[9],[20] 6.50% [3],[9],[20] 6.50% [3],[9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Principal amount or par value $ 5,877 [3],[11],[20]       $ 5,922 [6],[16],[21]        
Cost 5,843 [3],[20]       5,883 [6],[21]        
Fair Value 5,877 [3],[20]       5,878 [6],[21]        
Investment, Identifier [Axis]: HB Wealth Management, LLC, Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 4,797 [3],[45],[46]       4,834 [6],[47],[48]        
Fair Value $ 5,125 [3],[45],[46]       $ 4,834 [6],[32],[47],[48]        
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[35] 9.88% 9.88% 9.88%            
Interest Rate Margin [3],[9],[35] 6.75% 6.75% 6.75%            
Principal amount or par value [3],[11],[35] $ 22,500                
Cost [3],[35] 22,413                
Fair Value [3],[35] $ 21,868                
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.88% 9.88% 9.88%            
Interest Rate Margin [3],[9],[20] 6.75% 6.75% 6.75%            
Principal amount or par value [3],[11],[20] $ 4,208                
Cost [3],[20] 4,178                
Fair Value [3],[20] 4,090                
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[36]         7.50% 7.50%      
Interest Rate Margin [15],[36]         6.75% 6.75%      
Principal amount or par value [16],[36]         $ 22,500        
Cost [36]         22,404        
Fair Value [36]         $ 22,509        
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         7.50% 7.50%      
Interest Rate Margin [15],[21]         6.75% 6.75%      
Principal amount or par value [16],[21]         $ 4,208        
Cost [21]         4,174        
Fair Value [21]         $ 4,210        
Investment, Identifier [Axis]: Haven Midstream Holdings LLC, Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [3],[49] 0                
Fair Value [3],[49] 27,125                
Investment, Identifier [Axis]: Haven Midstream Holdings LLC, Profit Interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [3],[50] 0                
Fair Value [3],[50] 83                
Investment, Identifier [Axis]: Haven Midstream LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11],[51] 8,000                
Cost [3],[4],[10],[51] 0                
Fair Value [3],[4],[10],[51] $ 0                
Investment, Identifier [Axis]: Haven Midstream LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 14.00% 14.00% 14.00%            
Principal amount or par value [3],[4],[11] $ 33,889                
Cost [3],[4] 21,086                
Fair Value [3],[4] $ 33,889                
Investment, Identifier [Axis]: Haven Midstream LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 12.18% 12.18% 12.18%            
Interest Rate Margin [3],[4],[9] 8.50% 8.50% 8.50%            
Principal amount or par value [3],[4],[11] $ 11,972                
Cost [3],[4] 11,972                
Fair Value [3],[4] $ 11,972                
Investment, Identifier [Axis]: Hill International, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.88% [3],[9],[20] 9.88% [3],[9],[20] 9.88% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 6.85% [3],[9],[20] 6.85% [3],[9],[20] 6.85% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 14,971 [3],[11],[20]       $ 15,089 [6],[16],[21]        
Cost 14,958 [3],[20]       15,067 [6],[21]        
Fair Value 14,971 [3],[20]       $ 15,089 [6],[21]        
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.75% 6.75%      
Interest Rate Margin [6],[15],[21]         6.00% 6.00%      
Principal amount or par value [6],[16],[21]         $ 29,429        
Cost [6],[21]         29,144        
Fair Value [6],[21]         $ 29,133        
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.75% 6.75%      
Interest Rate Margin [6],[7],[15],[17]         6.00% 6.00%      
Principal amount or par value [6],[7],[16],[17]         $ 1,149        
Cost [6],[7],[17]         1,137        
Fair Value [6],[7],[17]         1,137        
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,298 [3],[4],[10],[11]       1,149 [6],[7],[16],[17]        
Cost (23) [3],[4],[10]       (11) [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ (11) [6],[7],[17]        
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.67% 9.67% 9.67%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 29,207                
Cost [3],[20] 28,949                
Fair Value [3],[20] $ 29,207                
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.67% 9.67% 9.67%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 4,268                
Cost [3],[20] 4,248                
Fair Value [3],[20] $ 4,268                
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 7.65% 7.65% 7.65%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 13,007                
Cost [3],[20] 12,883                
Fair Value [3],[20] $ 12,877                
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.71% 8.71% 8.71%            
Interest Rate Margin [3],[4],[9],[10] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[4],[10],[11] $ 186                
Cost [3],[4],[10] 184                
Fair Value [3],[4],[10] 184                
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 1,363                
Cost [3],[4],[10] (14)                
Fair Value [3],[4],[10] (14)                
Investment, Identifier [Axis]: IMO Investor Holdings, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 3,097                
Cost [3],[4],[10] 0                
Fair Value [3],[4],[10] $ (31)                
Investment, Identifier [Axis]: Idera, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.32% [3],[9],[12] 9.32% [3],[9],[12] 9.32% [3],[9],[12]   7.50% [15],[24] 7.50% [15],[24]      
Interest Rate Margin 6.75% [3],[9],[12] 6.75% [3],[9],[12] 6.75% [3],[9],[12]   6.75% [15],[24] 6.75% [15],[24]      
Principal amount or par value $ 22,500 [3],[11],[12]       $ 22,500 [16],[24]        
Cost 22,235 [3],[12]       22,212 [24]        
Fair Value $ 21,647 [3],[12]       $ 22,613 [24]        
Investment, Identifier [Axis]: Idera, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.32% [3],[4],[9] 9.32% [3],[4],[9] 9.32% [3],[4],[9]   7.50% [7],[15] 7.50% [7],[15]      
Interest Rate Margin 6.75% [3],[4],[9] 6.75% [3],[4],[9] 6.75% [3],[4],[9]   6.75% [7],[15] 6.75% [7],[15]      
Principal amount or par value $ 3,000 [3],[4],[11]       $ 3,000 [7],[16]        
Cost 2,987 [3],[4]       2,986 [7]        
Fair Value $ 2,886 [3],[4]       $ 3,015 [7]        
Investment, Identifier [Axis]: Infogain Corporation, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.75% 6.75%      
Interest Rate Margin [6],[15],[21]         5.75% 5.75%      
Principal amount or par value [6],[16],[21]         $ 19,090        
Cost [6],[21]         18,953        
Fair Value [6],[21]         18,946        
Investment, Identifier [Axis]: Infogain Corporation, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.41% 8.41% 8.41%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 678                
Cost [3],[4],[10] 673                
Fair Value [3],[4],[10] $ 671                
Investment, Identifier [Axis]: Infogain Corporation, First lien - Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 11.90% 11.90% 11.90%            
Interest Rate Margin [3],[4],[9] 8.25% 8.25% 8.25%            
Principal amount or par value [3],[4],[11] $ 17,245                
Cost [3],[4] 17,033                
Fair Value [3],[4] 17,029                
Investment, Identifier [Axis]: Infogain Corporation, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,150 [3],[4],[10],[11]       3,827 [6],[7],[16],[17]        
Cost (24) [3],[4],[10]       (29) [6],[7],[17]        
Fair Value $ (31) [3],[4],[10]       $ (29) [6],[7],[17]        
Investment, Identifier [Axis]: Infogain Corporation, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.43% 8.43% 8.43%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 18,946                
Cost [3],[20] 18,823                
Fair Value [3],[20] $ 18,757                
Investment, Identifier [Axis]: Infogain Corporation, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.04% 8.04% 8.04%            
Interest Rate Margin [3],[9],[13] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[13] $ 7,943                
Cost [3],[13] 7,866                
Fair Value [3],[13] $ 7,864                
Investment, Identifier [Axis]: Integro Parent Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.75% 6.75%      
Interest Rate Margin [6],[15],[21]         5.75% 5.75%      
Principal amount or par value [6],[16],[21]         $ 33,986        
Cost [6],[21]         33,947        
Fair Value [6],[21]         $ 33,239        
Investment, Identifier [Axis]: Integro Parent Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         4.80% 4.80%      
Interest Rate Margin [6],[7],[15],[17]         4.50% 4.50%      
Principal amount or par value [6],[7],[16],[17]         $ 6,743        
Cost [6],[7],[17]         6,709        
Fair Value [6],[7],[17]         $ 6,685        
Investment, Identifier [Axis]: Integro Parent Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[19],[20] 13.80% 13.80% 13.80%            
Interest rate PIK [3],[9],[19],[20] 10.25% 10.25% 10.25%            
Principal amount or par value [3],[11],[20] $ 4,026                
Cost [3],[20] 4,022                
Fair Value [3],[20] $ 4,026                
Investment, Identifier [Axis]: Integro Parent Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 13.80% 13.80% 13.80%            
Interest rate PIK [3],[4],[9],[19] 10.25% 10.25% 10.25%            
Principal amount or par value [3],[4],[11] $ 795                
Cost [3],[4] 791                
Fair Value [3],[4] $ 795                
Investment, Identifier [Axis]: Integro Parent Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 15.80% [3],[9],[13],[19],[25] 15.80% [3],[9],[13],[19],[25] 15.80% [3],[9],[13],[19],[25]   10.25% [6],[14],[15] 10.25% [6],[14],[15]      
Interest Rate Margin 12.25% [3],[9],[13],[19],[25] 12.25% [3],[9],[13],[19],[25] 12.25% [3],[9],[13],[19],[25]   9.25% [6],[14],[15] 9.25% [6],[14],[15]      
Principal amount or par value $ 11,068 [3],[11],[13]       $ 10,000 [6],[14],[16]        
Cost 10,821 [3],[13]       9,969 [6],[14]        
Fair Value 7,169 [3],[13]       $ 9,534 [6],[14]        
Investment, Identifier [Axis]: Integro Parent Inc., Second lien, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value       $ 3,874          
Cost 3,787                
Fair Value $ 2,509                
Investment, Identifier [Axis]: KAMC Holdings, Inc, Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.94% [3],[9],[20] 10.94% [3],[9],[20] 10.94% [3],[9],[20]   8.16% [6],[15],[21] 8.16% [6],[15],[21]      
Interest Rate Margin 8.00% [3],[9],[20] 8.00% [3],[9],[20] 8.00% [3],[9],[20]   8.00% [6],[15],[21] 8.00% [6],[15],[21]      
Principal amount or par value $ 18,750 [3],[11],[20]       $ 18,750 [6],[16],[21]        
Cost 18,653 [3],[20]       18,642 [6],[21]        
Fair Value $ 16,279 [3],[20]       $ 16,352 [6],[21]        
Investment, Identifier [Axis]: KAMC Holdings, Inc, Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.94% [3],[9],[13] 10.94% [3],[9],[13] 10.94% [3],[9],[13]   8.16% [6],[14],[15] 8.16% [6],[14],[15]      
Interest Rate Margin 8.00% [3],[9],[13] 8.00% [3],[9],[13] 8.00% [3],[9],[13]   8.00% [6],[14],[15] 8.00% [6],[14],[15]      
Principal amount or par value $ 18,750 [3],[11],[13]       $ 18,750 [6],[14],[16]        
Cost 18,653 [3],[13]       18,642 [6],[14]        
Fair Value $ 16,279 [3],[13]       $ 16,352 [6],[14]        
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         6.25% 6.25%      
Interest Rate Margin [6],[14],[15]         5.50% 5.50%      
Principal amount or par value [6],[14],[16]         $ 7,039        
Cost [6],[14]         6,970        
Fair Value [6],[14]         $ 6,968        
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.75% [3],[9],[10],[20] 10.75% [3],[9],[10],[20] 10.75% [3],[9],[10],[20]   7.75% [6],[7],[15],[17] 7.75% [6],[7],[15],[17]      
Interest Rate Margin 4.50% [3],[9],[10],[20] 4.50% [3],[9],[10],[20] 4.50% [3],[9],[10],[20]   4.50% [6],[7],[15],[17] 4.50% [6],[7],[15],[17]      
Principal amount or par value $ 146 [3],[10],[11],[20]       $ 402 [6],[7],[16],[17]        
Cost 144 [3],[10],[20]       398 [6],[7],[17]        
Fair Value 144 [3],[10],[20]       398 [6],[7],[17]        
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         403        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         $ (4)        
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[10],[11],[20] 1,022                
Cost [3],[10],[20] 0                
Fair Value [3],[10],[20] $ (13)                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 8.58% 8.58% 8.58%            
Interest Rate Margin [3],[9],[13] 5.50% 5.50% 5.50%            
Principal amount or par value [3],[11],[13] $ 6,986                
Cost [3],[13] 6,924                
Fair Value [3],[13] $ 6,899                
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 10.75% 10.75% 10.75%            
Interest Rate Margin [3],[9],[20] 4.50% 4.50% 4.50%            
Principal amount or par value [3],[11],[20] $ 802                
Cost [3],[20] 795                
Fair Value [3],[20] $ 793                
Investment, Identifier [Axis]: Kaseya Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.29% 8.29% 8.29%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20],[52] $ 63,093                
Cost [3],[20],[52] 62,634                
Fair Value [3],[20],[52] 62,620                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17],[18]         7.50% 7.50%      
Interest Rate Margin [6],[7],[15],[17],[18]         5.50% 5.50%      
Interest rate PIK [6],[7],[15],[17],[18]         1.00% 1.00%      
Principal amount or par value [6],[7],[16],[17]         $ 1,541        
Cost [6],[7],[17]         1,528        
Fair Value [6],[7],[17]         1,541        
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,851 [3],[4],[10],[11]       2,129 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       (19) [6],[7],[17]        
Fair Value (29) [3],[4],[10]       0 [6],[7],[17]        
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,851 [3],[4],[10],[11]       2,312 [6],[7],[16],[17]        
Cost (29) [3],[4],[10]       (23) [6],[7],[17]        
Fair Value $ (29) [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: Kaseya Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15],[18]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15],[18]         5.50% 5.50%      
Interest rate PIK [6],[14],[15],[18]         1.00% 1.00%      
Principal amount or par value [6],[14],[16]         $ 29,094        
Cost [6],[14]         28,926        
Fair Value [6],[14]         $ 29,094        
Investment, Identifier [Axis]: Kaseya Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15],[18]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15],[18]         5.50% 5.50%      
Interest rate PIK [6],[14],[15],[18]         1.00% 1.00%      
Principal amount or par value [6],[14],[16]         $ 7,795        
Cost [6],[14]         7,733        
Fair Value [6],[14]         $ 7,795        
Investment, Identifier [Axis]: Kaseya Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[18]         7.50% 7.50%      
Interest Rate Margin [6],[7],[15],[18]         5.50% 5.50%      
Interest rate PIK [6],[7],[15],[18]         1.00% 1.00%      
Principal amount or par value [6],[7],[16]         $ 3,405        
Cost [6],[7]         3,380        
Fair Value [6],[7]         $ 3,405        
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.06% [3],[9],[35] 8.06% [3],[9],[35] 8.06% [3],[9],[35]   7.00% [15],[36] 7.00% [15],[36]      
Interest Rate Margin 5.50% [3],[9],[35] 5.50% [3],[9],[35] 5.50% [3],[9],[35]   6.00% [15],[36] 6.00% [15],[36]      
Principal amount or par value $ 15,828 [3],[11],[35]       $ 15,949 [16],[36]        
Cost 15,779 [3],[35]       15,890 [36]        
Fair Value 15,828 [3],[35]       $ 15,870 [36]        
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [7],[15],[17]         7.00% 7.00%      
Interest Rate Margin [7],[15],[17]         6.00% 6.00%      
Principal amount or par value [7],[16],[17]         $ 630        
Cost [7],[17]         627        
Fair Value [7],[17]         627        
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,799 [3],[4],[10],[11]       1,169 [7],[16],[17]        
Cost (9) [3],[4],[10]       (6) [7],[17]        
Fair Value 0 [3],[4],[10]       $ (6) [7],[17]        
Investment, Identifier [Axis]: Keystone Acquisition Corp., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         6.25% 6.25%      
Interest Rate Margin [15],[21]         5.25% 5.25%      
Principal amount or par value [16],[21]         $ 23,981        
Cost [21]         23,918        
Fair Value [21]         $ 23,861        
Investment, Identifier [Axis]: Keystone Acquisition Corp., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         10.25% 10.25%      
Interest Rate Margin [6],[15],[21]         9.25% 9.25%      
Principal amount or par value [6],[16],[21]         $ 4,500        
Cost [6],[21]         4,476        
Fair Value [6],[21]         $ 4,500        
Investment, Identifier [Axis]: Knockout Intermediate Holdings I, Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [3],[4],[52] 14,961                
Fair Value [3],[4],[52] $ 14,961                
Investment, Identifier [Axis]: MED Parentco, LP, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.37% [3],[9],[13] 11.37% [3],[9],[13] 11.37% [3],[9],[13]   8.35% [14],[15] 8.35% [14],[15]      
Interest Rate Margin 8.25% [3],[9],[13] 8.25% [3],[9],[13] 8.25% [3],[9],[13]   8.25% [14],[15] 8.25% [14],[15]      
Principal amount or par value $ 20,857 [3],[11],[13]       $ 20,857 [14],[16]        
Cost 20,748 [3],[13]       20,735 [14]        
Fair Value 18,180 [3],[13]       20,883 [14]        
Investment, Identifier [Axis]: MRI Software LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,002 [4],[10],[11]       9,364 [6],[16],[17],[21]        
Cost (10) [4],[10]       0 [6],[17],[21]        
Fair Value (45) [4],[10]       0 [6],[17],[21]        
Investment, Identifier [Axis]: MRI Software LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 5,266 [4],[10],[11]       2,002 [6],[7],[16],[17]        
Cost 0 [4],[10]       (10) [6],[7],[17]        
Fair Value $ (118) [4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: MRI Software LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [9],[35] 9.17% [9],[35] 9.17% [9],[35]   6.50% [6],[15],[36] 6.50% [6],[15],[36]      
Interest Rate Margin 5.50% [9],[35] 5.50% [9],[35] 5.50% [9],[35]   5.50% [6],[15],[36] 5.50% [6],[15],[36]      
Principal amount or par value $ 21,936 [11],[35]       $ 22,104 [6],[16],[36]        
Cost 21,869 [35]       22,024 [6],[36]        
Fair Value $ 21,442 [35]       $ 22,104 [6],[36]        
Investment, Identifier [Axis]: MRI Software LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [9],[20] 9.17% [9],[20] 9.17% [9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Interest Rate Margin 5.50% [9],[20] 5.50% [9],[20] 5.50% [9],[20]   5.50% [6],[15],[21] 5.50% [6],[15],[21]      
Principal amount or par value $ 4,627 [11],[20]       $ 6,205 [6],[16],[21]        
Cost 4,617 [20]       6,182 [6],[21]        
Fair Value $ 4,523 [20]       $ 6,205 [6],[21]        
Investment, Identifier [Axis]: MRI Software LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [9],[20] 9.17% [9],[20] 9.17% [9],[20]   6.50% [6],[7],[15] 6.50% [6],[7],[15]      
Interest Rate Margin 5.50% [9],[20] 5.50% [9],[20] 5.50% [9],[20]   5.50% [6],[7],[15] 5.50% [6],[7],[15]      
Principal amount or par value $ 3,181 [11],[20]       $ 818 [6],[7],[16]        
Cost 3,171 [20]       814 [6],[7]        
Fair Value $ 3,109 [20]       $ 818 [6],[7]        
Investment, Identifier [Axis]: MRI Software LLC, First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [4],[9] 9.17% [4],[9] 9.17% [4],[9]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Interest Rate Margin 5.50% [4],[9] 5.50% [4],[9] 5.50% [4],[9]   5.50% [6],[15],[21] 5.50% [6],[15],[21]      
Principal amount or par value $ 2,482 [4],[11]       $ 319 [6],[16],[21]        
Cost 2,476 [4]       318 [6],[21]        
Fair Value $ 2,426 [4]       319 [6],[21]        
Investment, Identifier [Axis]: MRI Software LLC, First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [4],[9] 9.17% 9.17% 9.17%            
Interest Rate Margin [4],[9] 5.50% 5.50% 5.50%            
Principal amount or par value [4],[11] $ 812                
Cost [4] 809                
Fair Value [4] 794                
Investment, Identifier [Axis]: NHME Holdings Corp., Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 4,000 [3],[4],[53]       4,000 [6],[7],[54]        
Fair Value 0 [3],[4],[53]       2,000 [6],[7],[54]        
Investment, Identifier [Axis]: NHME Holdings Corp., Warrants                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 1,000 [3],[4],[53]       1,000 [6],[7],[54]        
Fair Value 0 [3],[4],[53]       500 [6],[7],[54]        
Investment, Identifier [Axis]: NM APP Canada Corp., Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 7,345 [3],[55]       7,345 [6],[56]        
Fair Value 11,620 [3],[31],[55]       9,422 [6],[32],[56]        
Investment, Identifier [Axis]: NM APP US LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[55]       5,080 [6],[56]        
Fair Value 0 [3],[55]       14,891 [6],[56]        
Investment, Identifier [Axis]: NM CLFX LP, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 12,538 [3],[55]       12,538 [6],[56]        
Fair Value 17,522 [3],[55]       24,676 [6],[56]        
Investment, Identifier [Axis]: NM DRVT LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[55]       5,152 [6],[56]        
Fair Value 0 [3],[55]       7,984 [6],[56]        
Investment, Identifier [Axis]: NM GLCR LP, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[55]       14,750 [6],[56]        
Fair Value 0 [3],[55]       50,687 [6],[56]        
Investment, Identifier [Axis]: NM GP Holdco, LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 861 [3],[55]       998 [6],[56]        
Fair Value 1,038 [3],[31],[55]       $ 1,197 [6],[32],[56]        
Investment, Identifier [Axis]: NM GRC Holdco, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[18],[21]         8.50% 8.50%      
Interest Rate Margin [6],[15],[18],[21]         6.00% 6.00%      
Interest rate PIK [6],[15],[18],[21]         1.50% 1.50%      
Principal amount or par value [6],[16],[21]         $ 38,561        
Cost [6],[21]         38,485        
Fair Value [6],[21]         $ 38,561        
Investment, Identifier [Axis]: NM GRC Holdco, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[18],[21]         8.50% 8.50%      
Interest Rate Margin [6],[15],[18],[21]         6.00% 6.00%      
Interest rate PIK [6],[15],[18],[21]         1.50% 1.50%      
Principal amount or par value [6],[16],[21]         $ 10,718        
Cost [6],[21]         10,695        
Fair Value [6],[21]         10,718        
Investment, Identifier [Axis]: NM JRA LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[55]       2,043 [6],[56]        
Fair Value 0 [3],[55]       3,996 [6],[56]        
Investment, Identifier [Axis]: NM KRLN LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[55]       9,222 [6],[56]        
Fair Value 0       244 [6],[56]        
Investment, Identifier [Axis]: NM NL Holdings, L.P., Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 76,371 [3],[55]       87,203 [6],[56]        
Fair Value 95,356 [3],[31],[55]       107,870 [6],[32],[56]        
Investment, Identifier [Axis]: NM YI, LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 6,272 [3],[55]       6,272 [6],[56]        
Fair Value $ 9,375 [3],[55]       8,286 [6],[56]        
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         10,664        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         $ (160)        
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.28% [3],[9],[13] 8.28% [3],[9],[13] 8.28% [3],[9],[13]   6.75% [6],[14],[15] 6.75% [6],[14],[15]      
Interest Rate Margin 6.00% [3],[9],[13] 6.00% [3],[9],[13] 6.00% [3],[9],[13]   6.00% [6],[14],[15] 6.00% [6],[14],[15]      
Principal amount or par value $ 19,259 [3],[11],[13]       $ 19,259 [6],[14],[16]        
Cost 19,025 [3],[13]       18,998 [6],[14]        
Fair Value $ 19,232 [3],[13]       $ 18,970 [6],[14]        
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.28% [3],[9],[20] 8.28% [3],[9],[20] 8.28% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 6.00% [3],[9],[20] 6.00% [3],[9],[20] 6.00% [3],[9],[20]   6.00% [6],[15],[21] 6.00% [6],[15],[21]      
Principal amount or par value $ 4,913 [3],[11],[20]       $ 4,913 [6],[16],[21]        
Cost 4,853 [3],[20]       4,846 [6],[21]        
Fair Value 4,906 [3],[20]       4,839 [6],[21]        
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 140,000 [3],[4]       140,000 [6],[7]        
Fair Value 140,000 [3],[4],[31]       140,000 [6],[7],[32]        
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC, Membership interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 112,400 [3],[4]       112,400 [6],[7]        
Fair Value 112,400 [3],[4],[31]       $ 112,400 [6],[7],[32]        
Investment, Identifier [Axis]: National HME, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 36,512                
Fair Value $ 7,021                
Investment, Identifier [Axis]: National HME, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.00% [3],[4],[9],[19],[25] 12.00% [3],[4],[9],[19],[25] 12.00% [3],[4],[9],[19],[25]   12.00% [6],[7],[15],[18] 12.00% [6],[7],[15],[18]      
Principal amount or par value $ 17,102 [3],[4],[11]       $ 21,016 [6],[7],[16]        
Cost 16,672 [3],[4]       18,816 [6],[7]        
Fair Value $ 7,021 [3],[4]       $ 13,030 [6],[7]        
Investment, Identifier [Axis]: National HME, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.00% [3],[4],[9],[19],[25] 12.00% [3],[4],[9],[19],[25] 12.00% [3],[4],[9],[19],[25]   12.00% [6],[7],[15],[18] 12.00% [6],[7],[15],[18]      
Principal amount or par value $ 21,647 [3],[4],[11]       $ 15,148 [6],[7],[16]        
Cost 19,840 [3],[4]       14,621 [6],[7]        
Fair Value $ 0 [3],[4]       $ 11,817 [6],[7]        
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[18]         10.50% 10.50%      
Interest Rate Margin [6],[7],[15],[18]         2.50% 2.50%      
Interest rate PIK [6],[7],[15],[18]         7.00% 7.00%      
Principal amount or par value [6],[7],[16]         $ 3,992        
Cost [6],[7]         3,992        
Fair Value [6],[7]         $ 3,992        
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.17% [3],[9],[19],[20] 13.17% [3],[9],[19],[20] 13.17% [3],[9],[19],[20]   10.50% [6],[15],[18],[21] 10.50% [6],[15],[18],[21]      
Interest Rate Margin 2.50% [3],[9],[19],[20] 2.50% [3],[9],[19],[20] 2.50% [3],[9],[19],[20]   2.50% [6],[15],[18],[21] 2.50% [6],[15],[18],[21]      
Interest rate PIK 7.00% [3],[9],[19],[20] 7.00% [3],[9],[19],[20] 7.00% [3],[9],[19],[20]   7.00% [6],[15],[18],[21] 7.00% [6],[15],[18],[21]      
Principal amount or par value $ 34,923 [3],[11],[20]       $ 33,133 [6],[16],[21]        
Cost 34,923 [3],[20]       33,133 [6],[21]        
Fair Value $ 34,923 [3],[20]       $ 33,133 [6],[21]        
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 13.17% [3],[9],[13],[19] 13.17% [3],[9],[13],[19] 13.17% [3],[9],[13],[19]   10.50% [6],[14],[15],[18] 10.50% [6],[14],[15],[18]      
Interest Rate Margin 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19] 2.50% [3],[9],[13],[19]   2.50% [6],[14],[15],[18] 2.50% [6],[14],[15],[18]      
Interest rate PIK 7.00% [3],[9],[13],[19] 7.00% [3],[9],[13],[19] 7.00% [3],[9],[13],[19]   7.00% [6],[14],[15],[18] 7.00% [6],[14],[15],[18]      
Principal amount or par value $ 8,568 [3],[11],[13]       $ 8,129 [6],[14],[16]        
Cost 8,568 [3],[13]       8,129 [6],[14]        
Fair Value $ 8,568 [3],[13]       $ 8,129 [6],[14]        
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 13.17% 13.17% 13.17%            
Interest Rate Margin [3],[4],[9],[19] 2.50% 2.50% 2.50%            
Interest rate PIK [3],[4],[9],[19] 7.00% 7.00% 7.00%            
Principal amount or par value [3],[4],[11] $ 4,207                
Cost [3],[4] 4,207                
Fair Value [3],[4] $ 4,207                
Investment, Identifier [Axis]: New Benevis Holdco, Inc., Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 12.00% [3],[4],[9],[19] 12.00% [3],[4],[9],[19] 12.00% [3],[4],[9],[19]   12.00% [6],[7],[15],[18] 12.00% [6],[7],[15],[18]      
Principal amount or par value $ 18,126 [3],[4],[11]       $ 16,556 [6],[7],[16]        
Cost 16,180 [3],[4]       14,250 [6],[7]        
Fair Value 14,501 [3],[4]       13,603 [6],[7]        
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 27,154 [3],[20]       27,154 [6],[21]        
Fair Value 34,454 [3],[20]       34,548 [6],[21]        
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 6,662 [3],[13]       6,662 [6],[14]        
Fair Value 8,453 [3],[13]       8,476 [6],[14]        
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 6,106 [3],[4]       6,105 [6],[7]        
Fair Value 7,693 [3],[4]       7,714 [6],[7]        
Investment, Identifier [Axis]: New Permian Holdco, Inc., Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 11,155 [3],[4]       11,155 [6],[7]        
Fair Value $ 16,000 [3],[4]       $ 11,000 [6],[7]        
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 18.00% [3],[4],[9],[19] 18.00% [3],[4],[9],[19] 18.00% [3],[4],[9],[19]   18.00% [6],[7],[15],[18] 18.00% [6],[7],[15],[18]      
Principal amount or par value $ 20,830 [3],[4],[11]       $ 18,216 [6],[7],[16]        
Cost 20,830 [3],[4]       18,216 [6],[7]        
Fair Value $ 20,830 [3],[4]       $ 18,216 [6],[7]        
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.56% [3],[4],[9],[10],[19] 11.56% [3],[4],[9],[10],[19] 11.56% [3],[4],[9],[10],[19]   10.00% [6],[7],[15],[17],[18] 10.00% [6],[7],[15],[17],[18]      
Interest Rate Margin 9.00% [3],[4],[9],[10],[19] 9.00% [3],[4],[9],[10],[19] 9.00% [3],[4],[9],[10],[19]   9.00% [6],[7],[15],[17],[18] 9.00% [6],[7],[15],[17],[18]      
Principal amount or par value $ 9,489 [3],[4],[10],[11]       $ 5,543 [6],[7],[16],[17]        
Cost 9,489 [3],[4],[10]       5,543 [6],[7],[17]        
Fair Value 9,489 [3],[4],[10]       5,543 [6],[7],[17]        
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,577 [3],[4],[10],[11]       4,977 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ 0 [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: New Trojan Parent, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.37% [3],[9],[20] 10.37% [3],[9],[20] 10.37% [3],[9],[20]   7.75% [15],[21] 7.75% [15],[21]      
Interest Rate Margin 7.25% [3],[9],[20] 7.25% [3],[9],[20] 7.25% [3],[9],[20]   7.25% [15],[21] 7.25% [15],[21]      
Principal amount or par value $ 26,762 [3],[11],[20]       $ 26,762 [16],[21]        
Cost 26,650 [3],[20]       26,640 [21]        
Fair Value $ 19,480 [3],[20]       $ 26,762 [21]        
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15]         6.50% 6.50%      
Principal amount or par value [6],[14],[16]         $ 10,153        
Cost [6],[14]         10,078        
Fair Value [6],[14]         $ 10,077        
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.88% [3],[4],[9],[10] 9.88% [3],[4],[9],[10] 9.88% [3],[4],[9],[10]   7.50% [6],[7],[15],[17] 7.50% [6],[7],[15],[17]      
Interest Rate Margin 6.75% [3],[4],[9],[10] 6.75% [3],[4],[9],[10] 6.75% [3],[4],[9],[10]   6.50% [6],[7],[15],[17] 6.50% [6],[7],[15],[17]      
Principal amount or par value $ 878 [3],[4],[10],[11]       $ 147 [6],[7],[16],[17]        
Cost 874 [3],[4],[10]       146 [6],[7],[17]        
Fair Value 871 [3],[4],[10]       146 [6],[7],[17]        
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 587 [3],[4],[10],[11]       734 [6],[7],[16],[17]        
Cost (7) [3],[4],[10]       (6) [6],[7],[17]        
Fair Value (4) [3],[4],[10]       (6) [6],[7],[17]        
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 880 [3],[4],[10],[11]       1,467 [6],[7],[16],[17]        
Cost (7) [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ (7) [3],[4],[10]       $ (11) [6],[7],[17]        
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 9.88% 9.88% 9.88%            
Interest Rate Margin [3],[9],[13] 6.75% 6.75% 6.75%            
Principal amount or par value [3],[11],[13] $ 10,076                
Cost [3],[13] 10,010                
Fair Value [3],[13] $ 10,002                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 9.88% 9.88% 9.88%            
Interest Rate Margin [3],[9],[13] 6.75% 6.75% 6.75%            
Principal amount or par value [3],[11],[13] $ 9,950                
Cost [3],[13] 9,880                
Fair Value [3],[13] 9,875                
Investment, Identifier [Axis]: OA Buyer, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         6.75% 6.75%      
Interest Rate Margin [15],[21]         6.00% 6.00%      
Principal amount or par value [16],[21],[57]         $ 28,201        
Cost [21],[57]         27,920        
Fair Value [21],[57]         27,919        
Investment, Identifier [Axis]: OA Buyer, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,600 [3],[4],[10],[11],[58]       3,600 [7],[16],[17],[57]        
Cost (36) [3],[4],[10],[58]       (36) [7],[17],[57]        
Fair Value $ (36) [3],[4],[10],[58]       (36) [7],[17],[57]        
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.12% 9.12% 9.12%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 28,060                
Cost [3],[20] 27,804                
Fair Value [3],[20] $ 27,780                
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.12% 9.12% 9.12%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 1,776                
Cost [3],[20] 1,759                
Fair Value [3],[20] 1,758                
Investment, Identifier [Axis]: OA Topco, L.P., Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 2,000 [3],[4],[58]       2,000 [7],[57]        
Fair Value 2,000 [3],[4],[58]       2,000 [7],[57]        
Investment, Identifier [Axis]: OEC Holdco, LLC, Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 7,565 [3],[59],[60]       7,142 [61],[62]        
Fair Value $ 7,054 [3],[59],[60]       $ 7,142 [61],[62]        
Investment, Identifier [Axis]: OEConnection LLC, Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.05% [3],[9],[20] 10.05% [3],[9],[20] 10.05% [3],[9],[20]   7.50% [15],[21] 7.50% [15],[21]      
Interest Rate Margin 7.00% [3],[9],[20] 7.00% [3],[9],[20] 7.00% [3],[9],[20]   7.00% [15],[21] 7.00% [15],[21]      
Principal amount or par value $ 23,406 [3],[11],[20]       $ 23,406 [16],[21]        
Cost 23,198 [3],[20]       23,173 [21]        
Fair Value $ 22,703 [3],[20]       $ 23,171 [21]        
Investment, Identifier [Axis]: OEConnection LLC, Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.12% [3],[9],[20] 10.12% [3],[9],[20] 10.12% [3],[9],[20]   7.50% [15],[21] 7.50% [15],[21]      
Interest Rate Margin 7.00% [3],[9],[20] 7.00% [3],[9],[20] 7.00% [3],[9],[20]   7.00% [15],[21] 7.00% [15],[21]      
Principal amount or par value $ 12,044 [3],[11],[20]       $ 12,044 [16],[21]        
Cost 11,960 [3],[20]       11,950 [21]        
Fair Value 11,683 [3],[20]       11,924 [21]        
Investment, Identifier [Axis]: PPV Intermediate Holdings LLC First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 486                
Cost [3],[4],[10] (5)                
Fair Value [3],[4],[10] $ (5)                
Investment, Identifier [Axis]: PPV Intermediate Holdings LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 9.01% 9.01% 9.01%            
Interest Rate Margin [3],[9],[12] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[12] $ 5,933                
Cost [3],[12] 5,874                
Fair Value [3],[12] $ 5,874                
Investment, Identifier [Axis]: PPV Intermediate Holdings LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[10],[12] 9.29% 9.29% 9.29%            
Interest Rate Margin [3],[9],[10],[12] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[10],[11],[12] $ 129                
Cost [3],[10],[12] 142                
Fair Value [3],[10],[12] 128                
Investment, Identifier [Axis]: PPV Intermediate Holdings LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[10],[11],[12] 1,452                
Cost [3],[10],[12] (15)                
Fair Value [3],[10],[12] (15)                
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 14,500 [3],[4],[11]       14,500 [6],[7],[16]       $ 20,000
Cost 14,500 [3],[4]       14,500 [6],[7]        
Fair Value 9,377 [3],[4]       10,354 [6],[7]        
Investment, Identifier [Axis]: PPVA Fund, L.P., Collateralized Financing                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 0 [11],[25],[63]       0 [16],[26],[64]        
Cost 0 [25],[63]       0 [26],[64]        
Fair Value $ 0 [25],[63]       $ 0 [26],[64]        
Investment, Identifier [Axis]: Permian Trust, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.00% [3],[9],[19],[25],[65] 10.00% [3],[9],[19],[25],[65] 10.00% [3],[9],[19],[25],[65]   10.00% [6],[15],[18],[26],[66] 10.00% [6],[15],[18],[26],[66]      
Principal amount or par value $ 247 [3],[11],[65]       $ 247 [6],[16],[66]        
Cost 0 [3],[65]       0 [6],[66]        
Fair Value $ 0 [3],[65]       $ 0 [6],[66]        
Investment, Identifier [Axis]: Permian Trust, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.00% [3],[4],[9],[19],[25] 11.00% [3],[4],[9],[19],[25] 11.00% [3],[4],[9],[19],[25]   11.00% [6],[7],[15],[18],[26] 11.00% [6],[7],[15],[18],[26]      
Interest Rate Margin 10.00% [3],[4],[9],[19],[25] 10.00% [3],[4],[9],[19],[25] 10.00% [3],[4],[9],[19],[25]   10.00% [6],[7],[15],[18],[26] 10.00% [6],[7],[15],[18],[26]      
Principal amount or par value $ 3,409 [3],[4],[11]       $ 3,409 [6],[7],[16]        
Cost 0 [3],[4]       0 [6],[7]        
Fair Value $ 0 [3],[4]       $ 0 [6],[7]        
Investment, Identifier [Axis]: PhyNet Dermatology LLC, First Lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.31% 9.31% 9.31%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 49,379                
Cost [3],[20] 49,204                
Fair Value [3],[20] $ 49,379                
Investment, Identifier [Axis]: PhyNet Dermatology LLC, First Lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.31% 9.31% 9.31%            
Interest Rate Margin [3],[9],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[11],[20] $ 18,796                
Cost [3],[20] 18,710                
Fair Value [3],[20] 18,796                
Investment, Identifier [Axis]: PhyNet Dermatology LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[18],[21]         7.00% 7.00%      
Interest Rate Margin [6],[15],[18],[21]         5.50% 5.50%      
Interest rate PIK [6],[15],[18],[21]         0.50% 0.50%      
Principal amount or par value [6],[16],[21]         $ 49,617        
Cost [6],[21]         49,374        
Fair Value [6],[21]         $ 49,617        
Investment, Identifier [Axis]: PhyNet Dermatology LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[18]         7.00% 7.00%      
Interest Rate Margin [6],[7],[15],[18]         5.50% 5.50%      
Interest rate PIK [6],[7],[15],[18]         0.50% 0.50%      
Principal amount or par value [6],[7],[16]         $ 18,966        
Cost [6],[7]         18,848        
Fair Value [6],[7]         $ 18,966        
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15],[18]         7.75% 7.75%      
Interest Rate Margin [6],[14],[15],[18]         7.00% 7.00%      
Principal amount or par value [6],[14],[16],[67]         $ 13,628        
Cost [6],[14],[67]         13,496        
Fair Value [6],[14],[67]         13,492        
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,446 [3],[4],[10],[11],[68]       2,446 [6],[7],[16],[17],[67]        
Cost (24) [3],[4],[10],[68]       (24) [6],[7],[17],[67]        
Fair Value $ (62) [3],[4],[10],[68]       (24) [6],[7],[17],[67]        
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13],[19] 10.67% 10.67% 10.67%            
Interest Rate Margin [3],[9],[13],[19] 7.00% 7.00% 7.00%            
Principal amount or par value [3],[11],[13] $ 14,508                
Cost [3],[13] 14,387                
Fair Value [3],[13] $ 14,160                
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13],[19] 10.67% 10.67% 10.67%            
Interest Rate Margin [3],[9],[13],[19] 7.00% 7.00% 7.00%            
Principal amount or par value [3],[11],[13] $ 1,988                
Cost [3],[13] 1,971                
Fair Value [3],[13] 1,941                
Investment, Identifier [Axis]: Pioneer Topco I, L.P., Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 1,999 [3],[68],[69]       2,000 [6],[67],[70]        
Fair Value 1,759 [3],[68],[69]       2,000 [6],[67],[70]        
Investment, Identifier [Axis]: Project Essential Super Parent, Inc., Preferred shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 11,501 [3],[4],[71]       10,597 [6],[7],[72]        
Fair Value 11,645 [3],[4],[71]       $ 10,586 [6],[7],[72]        
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.25% 6.25%      
Interest Rate Margin [6],[7],[15],[17]         5.50% 5.50%      
Principal amount or par value [6],[7],[16],[17]         $ 2,394        
Cost [6],[7],[17]         2,370        
Fair Value [6],[7],[17]         2,394        
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 483 [3],[4],[10],[11]       2,810 [6],[7],[16],[17]        
Cost (5) [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ (8) [3],[4],[10]       0 [6],[7],[17]        
Investment, Identifier [Axis]: Pye-Barker Fire & Safety, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         905        
Cost [6],[7],[17]         (9)        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Quartz Holding Company, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.12% [3],[4],[9] 11.12% [3],[4],[9] 11.12% [3],[4],[9]   8.10% [6],[7],[15] 8.10% [6],[7],[15]      
Interest Rate Margin 8.00% [3],[4],[9] 8.00% [3],[4],[9] 8.00% [3],[4],[9]   8.00% [6],[7],[15] 8.00% [6],[7],[15]      
Principal amount or par value $ 10,000 [3],[4],[11]       $ 10,000 [6],[7],[16]        
Cost 9,871 [3],[4]       9,854 [6],[7]        
Fair Value $ 9,802 [3],[4]       10,000 [6],[7]        
Investment, Identifier [Axis]: Recorded Future, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [7],[16],[17]         750        
Cost [7],[17]         (4)        
Fair Value [7],[17]         $ (4)        
Investment, Identifier [Axis]: Recorded Future, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.13% [3],[9],[13] 8.13% [3],[9],[13] 8.13% [3],[9],[13]   7.00% [14],[15] 7.00% [14],[15]      
Interest Rate Margin 5.25% [3],[9],[13] 5.25% [3],[9],[13] 5.25% [3],[9],[13]   6.00% [14],[15] 6.00% [14],[15]      
Principal amount or par value $ 24,531 [3],[11],[13]       $ 6,219 [14],[16]        
Cost 24,402 [3],[13]       6,199 [14]        
Fair Value $ 24,408 [3],[13]       $ 6,188 [14]        
Investment, Identifier [Axis]: Recorded Future, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.13% [3],[9],[20] 8.13% [3],[9],[20] 8.13% [3],[9],[20]   7.00% [14],[15] 7.00% [14],[15]      
Interest Rate Margin 5.25% [3],[9],[20] 5.25% [3],[9],[20] 5.25% [3],[9],[20]   6.00% [14],[15] 6.00% [14],[15]      
Principal amount or par value $ 12,684 [3],[11],[20]       $ 4,776 [14],[16]        
Cost 12,615 [3],[20]       4,750 [14]        
Fair Value $ 12,621 [3],[20]       $ 4,752 [14]        
Investment, Identifier [Axis]: Restaurant Technologies, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[24]         6.60% 6.60%      
Interest Rate Margin [15],[24]         6.50% 6.50%      
Principal amount or par value [16],[24]         $ 6,722        
Cost [24]         6,711        
Fair Value [24]         $ 6,722        
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.81% [3],[9],[20] 8.81% [3],[9],[20] 8.81% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.25% [3],[9],[20] 5.25% [3],[9],[20] 5.25% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 6,992 [3],[11],[20]       $ 5,756 [6],[16],[21]        
Cost 6,962 [3],[20]       5,729 [6],[21]        
Fair Value $ 6,878 [3],[20]       5,728 [6],[21]        
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 10.50% 10.50% 10.50%            
Interest Rate Margin [3],[4],[9],[10] 4.25% 4.25% 4.25%            
Principal amount or par value [3],[4],[10],[11] $ 128                
Cost [3],[4],[10] 127                
Fair Value [3],[4],[10] 126                
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 384 [3],[4],[10],[11]       512 [6],[7],[16],[17]        
Cost (2) [3],[4],[10]       (3) [6],[7],[17]        
Fair Value (6) [3],[4],[10]       (3) [6],[7],[17]        
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         1,279        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         (6)        
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 11,501 [3],[20]       11,501 [6],[21]        
Fair Value 3,599 [3],[20]       3,599 [6],[21]        
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 1,282 [3],[4]       1,282 [6],[7]        
Fair Value $ 401 [3],[4]       $ 401 [6],[7]        
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 15.00% [3],[4],[9],[19],[25] 15.00% [3],[4],[9],[19],[25] 15.00% [3],[4],[9],[19],[25]   15.00% [6],[7],[15],[18],[26] 15.00% [6],[7],[15],[18],[26]      
Principal amount or par value $ 5 [3],[4],[11]       $ 5 [6],[7],[16]        
Cost 5 [3],[4]       5 [6],[7]        
Fair Value $ 0 [3],[4]       $ 0 [6],[7]        
Investment, Identifier [Axis]: Specialtycare, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.03% [3],[9],[20] 8.03% [3],[9],[20] 8.03% [3],[9],[20]   6.75% [6],[15],[21] 6.75% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 10,485 [3],[11],[20]       $ 7,224 [6],[16],[21]        
Cost 10,363 [3],[20]       7,122 [6],[21]        
Fair Value $ 10,175 [3],[20]       7,115 [6],[21]        
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 8.23% 8.23% 8.23%            
Interest Rate Margin [3],[4],[9],[10] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[4],[10],[11] $ 79                
Cost [3],[4],[10] 75                
Fair Value [3],[4],[10] 77                
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 559 [3],[4],[10],[11]       559 [6],[7],[16],[17]        
Cost (8) [3],[4],[10]       (8) [6],[7],[17]        
Fair Value (16) [3],[4],[10]       (8) [6],[7],[17]        
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 868 [3],[4],[10],[11]       671 [6],[7],[16],[17]        
Cost 0 [3],[4],[10]       0 [6],[7],[17]        
Fair Value $ (26) [3],[4],[10]       $ (10) [6],[7],[17]        
Investment, Identifier [Axis]: Spring Education Group, Inc (fka SSH Group Holdings, Inc.), Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[21]         8.47% 8.47%      
Interest Rate Margin [15],[21]         8.25% 8.25%      
Principal amount or par value [16],[21]         $ 21,959        
Cost [21]         21,921        
Fair Value [21]         $ 21,282        
Investment, Identifier [Axis]: Stamps.com Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         6.50% 6.50%      
Interest Rate Margin [6],[14],[15]         5.75% 5.75%      
Principal amount or par value [6],[14],[16]         $ 37,273        
Cost [6],[14]         36,911        
Fair Value [6],[14]         $ 36,900        
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.56% [3],[9],[20] 8.56% [3],[9],[20] 8.56% [3],[9],[20]   6.50% [6],[15],[21] 6.50% [6],[15],[21]      
Interest Rate Margin 5.75% [3],[9],[20] 5.75% [3],[9],[20] 5.75% [3],[9],[20]   5.75% [6],[15],[21] 5.75% [6],[15],[21]      
Principal amount or par value $ 3,995 [3],[11],[20]       $ 4,025 [6],[16],[21]        
Cost 3,964 [3],[20]       3,991 [6],[21]        
Fair Value $ 3,955 [3],[20]       $ 3,985 [6],[21]        
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.50% 6.50%      
Interest Rate Margin [6],[7],[15],[17]         5.75% 5.75%      
Principal amount or par value [6],[7],[16],[17]         $ 1,585        
Cost [6],[7],[17]         1,570        
Fair Value [6],[7],[17]         1,570        
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[10],[20] 8.56% 8.56% 8.56%            
Interest Rate Margin [3],[9],[10],[20] 5.75% 5.75% 5.75%            
Principal amount or par value [3],[10],[11],[20] $ 2,135                
Cost [3],[10],[20] 2,114                
Fair Value [3],[10],[20] $ 2,114                
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 11.00% 11.00% 11.00%            
Interest Rate Margin [3],[4],[9],[10] 4.75% 4.75% 4.75%            
Principal amount or par value [3],[4],[10],[11] $ 67                
Cost [3],[4],[10] 69                
Fair Value [3],[4],[10] 66                
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 492 [3],[4],[10],[11]       559 [6],[7],[16],[17]        
Cost (7) [3],[4],[10]       (5) [6],[7],[17]        
Fair Value (5) [3],[4],[10]       (6) [6],[7],[17]        
Investment, Identifier [Axis]: Sun Acquirer Corp., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 815 [3],[10],[11],[20]       1,378 [6],[7],[16],[17]        
Cost (9) [3],[10],[20]       (10) [6],[7],[17]        
Fair Value (8) [3],[10],[20]       (14) [6],[7],[17]        
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred Shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [3],[12] 11,572                
Fair Value [3],[12] 11,467                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred Shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [3],[4] 3,989                
Fair Value [3],[4] $ 3,953                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [6],[24]         10,607        
Fair Value [6],[24]         10,719        
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [6],[7]         3,657        
Fair Value [6],[7]         $ 3,695        
Investment, Identifier [Axis]: Syndigo LLC, Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [15],[24]         8.75% 8.75%      
Interest Rate Margin [15],[24]         8.00% 8.00%      
Principal amount or par value [16],[24]         $ 22,500        
Cost [24]         22,347        
Fair Value [24]         $ 22,528        
Investment, Identifier [Axis]: Syndigo LLC, Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[12] 10.51% 10.51% 10.51%            
Interest Rate Margin [3],[9],[12] 8.00% 8.00% 8.00%            
Principal amount or par value [3],[11],[12] $ 22,500                
Cost [3],[12] 22,359                
Fair Value [3],[12] $ 21,281                
Investment, Identifier [Axis]: Syndigo LLC, Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 10.51% 10.51% 10.51%            
Interest Rate Margin [3],[9],[20] 8.00% 8.00% 8.00%            
Principal amount or par value [3],[11],[20] $ 5,697                
Cost [3],[20] 5,710                
Fair Value [3],[20] $ 5,388                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         3.60% 3.60%      
Interest Rate Margin [6],[15],[21]         3.50% 3.50%      
Principal amount or par value [6],[16],[21]         $ 16,563        
Cost [6],[21]         15,121        
Fair Value [6],[21]         $ 13,968        
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 6.57% 6.57% 6.57%            
Interest Rate Margin [3],[9],[20] 3.50% 3.50% 3.50%            
Principal amount or par value [3],[11],[20] $ 16,437                
Cost [3],[20] 15,384                
Fair Value [3],[20] $ 10,725                
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.57% [3],[9],[13] 6.57% [3],[9],[13] 6.57% [3],[9],[13]   3.60% [6],[14],[15] 3.60% [6],[14],[15]      
Interest Rate Margin 3.50% [3],[9],[13] 3.50% [3],[9],[13] 3.50% [3],[9],[13]   3.50% [6],[14],[15] 3.50% [6],[14],[15]      
Principal amount or par value $ 15,853 [3],[11],[13]       $ 15,975 [6],[14],[16]        
Cost 14,567 [3],[13]       14,219 [6],[14]        
Fair Value 10,344 [3],[13]       13,473 [6],[14]        
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 55,746 [3],[4],[41]       52,711 [6],[7]        
Fair Value $ 118,768 [3],[4],[41]       114,934 [6],[7]        
Investment, Identifier [Axis]: Tahoe Finco, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.68% 8.68% 8.68%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Investment, Identifier [Axis]: Tahoe Finco, LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 4,439 [3],[4],[10],[11]       4,439 [6],[7],[16],[17]        
Cost (44) [3],[4],[10]       (44) [6],[7],[17]        
Fair Value (44) [3],[4],[10],[31]       $ (44) [6],[7],[17],[32]        
Investment, Identifier [Axis]: Tahoe Finco, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[15],[21]         6.75% 6.75%      
Interest Rate Margin [6],[15],[21]         6.00% 6.00%      
Principal amount or par value 35,000 [3],[11],[20]       $ 35,000 [6],[16],[21]        
Cost 34,690 [3],[20]       34,660 [6],[21]        
Fair Value $ 34,650 [3],[20]       $ 34,650 [6],[21]        
Investment, Identifier [Axis]: Tahoe Finco, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.68% [3],[9],[13] 8.68% [3],[9],[13] 8.68% [3],[9],[13]   6.75% [6],[14],[15] 6.75% [6],[14],[15]      
Interest Rate Margin 6.00% [3],[9],[13] 6.00% [3],[9],[13] 6.00% [3],[9],[13]   6.00% [6],[14],[15] 6.00% [6],[14],[15]      
Principal amount or par value $ 24,189 [3],[11],[13]       $ 24,189 [6],[14],[16]        
Cost 23,975 [3],[13]       23,954 [6],[14]        
Fair Value $ 23,947 [3],[13]       23,947 [6],[14]        
Investment, Identifier [Axis]: Tenawa Resource Holdings LLC, Ordinary shares                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [6],[73]         0        
Fair Value [6],[73]         0        
Investment, Identifier [Axis]: Tenawa Resource Holdings LLC, Profit Interest                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost [6],[74]         0        
Fair Value [6],[74]         0        
Investment, Identifier [Axis]: Tenawa Resource Management LLC, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17],[75]         8,000        
Cost [6],[7],[17],[75]         0        
Fair Value [6],[7],[17],[75]         $ 0        
Investment, Identifier [Axis]: Tenawa Resource Management LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[18]         14.00% 14.00%      
Principal amount or par value [6],[7],[16]         $ 31,624        
Cost [6],[7]         18,821        
Fair Value [6],[7]         $ 18,821        
Investment, Identifier [Axis]: Tenawa Resource Management LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15]         10.50% 10.50%      
Interest Rate Margin [6],[7],[15]         8.50% 8.50%      
Principal amount or par value [6],[7],[16]         $ 16,000        
Cost [6],[7]         16,000        
Fair Value [6],[7]         $ 16,000        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17],[76]         7.47% 7.47%      
Interest Rate Margin [6],[7],[15],[17],[76]         7.00% 7.00%      
Principal amount or par value         $ 5,103 £ 3,771 [6],[7],[16],[17],[76]      
Cost [6],[7],[17],[76]         4,943        
Fair Value [6],[7],[17],[76]         $ 4,976        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         7.29% 7.29%      
Interest Rate Margin [6],[7],[15],[17]         7.00% 7.00%      
Principal amount or par value [6],[7],[16],[17]         $ 3,708        
Cost [6],[7],[17]         3,652        
Fair Value [6],[7],[17]         3,652        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value         12,884 £ 9,521 [6],[7],[16],[17],[76]      
Cost [6],[7],[17],[76]         0        
Fair Value [6],[7],[17],[32],[76]         $ (143)        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.97% [3],[4],[9],[77] 8.97% [3],[4],[9],[77] 8.97% [3],[4],[9],[77]   7.47% [6],[7],[15],[76] 7.47% [6],[7],[15],[76]      
Interest Rate Margin 7.00% [3],[4],[9],[77] 7.00% [3],[4],[9],[77] 7.00% [3],[4],[9],[77]   7.00% [6],[7],[15],[76] 7.00% [6],[7],[15],[76]      
Principal amount or par value $ 14,386 £ 12,879 [3],[4],[11],[77]     $ 17,428 £ 12,879 [6],[7],[16],[76]      
Cost 17,627 [3],[4],[77]       17,608 [6],[7],[76]        
Fair Value $ 14,386 [3],[4],[77]       $ 17,167 [6],[7],[76]        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.97% [3],[4],[9],[77] 8.97% [3],[4],[9],[77] 8.97% [3],[4],[9],[77]   7.15% [6],[7],[15] 7.15% [6],[7],[15]      
Interest Rate Margin 7.00% [3],[4],[9],[77] 7.00% [3],[4],[9],[77] 7.00% [3],[4],[9],[77]   7.00% [6],[7],[15] 7.00% [6],[7],[15]      
Principal amount or par value   £ 10,538 [3],[4],[11],[77]     $ 10,184 [6],[7],[16]        
Cost $ 13,127 [3],[4],[77]       10,037 [6],[7]        
Fair Value 11,772 [3],[4],[77]       $ 10,032 [6],[7]        
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 2 and Tennessee Bidco Limited, First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 12,465                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 10.38% 10.38% 10.38%            
Interest Rate Margin [3],[4],[9] 7.00% 7.00% 7.00%            
Principal amount or par value [3],[4],[11] $ 10,184                
Cost [3],[4] 10,050                
Fair Value [3],[4] $ 10,184                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9] 9.31% 9.31% 9.31%            
Interest Rate Margin [3],[4],[9] 7.00% 7.00% 7.00%            
Principal amount or par value [3],[4],[11] $ 6,246                
Cost [3],[4] 6,159                
Fair Value [3],[4] $ 6,246                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[77] 7.63% 7.63% 7.63%            
Interest Rate Margin [3],[4],[9],[77] 7.00% 7.00% 7.00%            
Principal amount or par value | € [3],[4],[11],[77]     € 708            
Cost [3],[4],[77] $ 713                
Fair Value [3],[4],[77] $ 694                
Investment, Identifier [Axis]: The Kleinfelder Group, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.92% [3],[9],[12] 8.92% [3],[9],[12] 8.92% [3],[9],[12]   6.25% [6],[15],[24] 6.25% [6],[15],[24]      
Interest Rate Margin 5.25% [3],[9],[12] 5.25% [3],[9],[12] 5.25% [3],[9],[12]   5.25% [6],[15],[24] 5.25% [6],[15],[24]      
Principal amount or par value $ 16,576 [3],[11],[12]       $ 16,708 [6],[16],[24]        
Cost 16,543 [3],[12]       16,663 [6],[24]        
Fair Value $ 16,428 [3],[12]       $ 16,708 [6],[24]        
Investment, Identifier [Axis]: TigerConnect, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[19],[20] 9.98% 9.98% 9.98%            
Interest Rate Margin [3],[9],[19],[20] 7.25% 7.25% 7.25%            
Principal amount or par value [3],[11],[20] $ 29,868                
Cost [3],[20] 29,594                
Fair Value [3],[20] 29,570                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[10],[11],[20] 1,232                
Cost [3],[10],[20] 0                
Fair Value [3],[10],[20] (12)                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 4,267                
Cost [3],[4],[10] (43)                
Fair Value [3],[4],[10] $ (43)                
Investment, Identifier [Axis]: Transcendia Holdings, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.12% [3],[9],[13] 11.12% [3],[9],[13] 11.12% [3],[9],[13]   9.00% [6],[14],[15] 9.00% [6],[14],[15]      
Interest Rate Margin 8.00% [3],[9],[13] 8.00% [3],[9],[13] 8.00% [3],[9],[13]   8.00% [6],[14],[15] 8.00% [6],[14],[15]      
Principal amount or par value $ 14,500 [3],[11],[13]       $ 14,500 [6],[14],[16]        
Cost 14,416 [3],[13]       14,396 [6],[14]        
Fair Value $ 13,083 [3],[13]       $ 13,445 [6],[14]        
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.08% [3],[9],[20] 7.08% [3],[9],[20] 7.08% [3],[9],[20]   6.00% [6],[15],[21] 6.00% [6],[15],[21]      
Interest Rate Margin 5.25% [3],[9],[20] 5.25% [3],[9],[20] 5.25% [3],[9],[20]   5.25% [6],[15],[21] 5.25% [6],[15],[21]      
Principal amount or par value $ 15,382 [3],[11],[20]       $ 15,382 [6],[16],[21]        
Cost 15,255 [3],[20]       15,238 [6],[21]        
Fair Value $ 15,257 [3],[20]       $ 15,228 [6],[21]        
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.26% [3],[9],[10],[20] 9.26% [3],[9],[10],[20] 9.26% [3],[9],[10],[20]   6.00% [6],[7],[15],[17] 6.00% [6],[7],[15],[17]      
Interest Rate Margin 5.25% [3],[9],[10],[20] 5.25% [3],[9],[10],[20] 5.25% [3],[9],[10],[20]   5.25% [6],[7],[15],[17] 5.25% [6],[7],[15],[17]      
Principal amount or par value $ 2,889 [3],[10],[11],[20]       $ 1,201 [6],[7],[16],[17]        
Cost 2,862 [3],[10],[20]       1,189 [6],[7],[17]        
Fair Value 2,865 [3],[10],[20]       1,189 [6],[7],[17]        
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,501 [3],[4],[10],[11]       300 [6],[7],[16],[17]        
Cost (15) [3],[4],[10]       (3) [6],[7],[17]        
Fair Value (12) [3],[4],[10]       (3) [6],[7],[17]        
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,364 [3],[10],[11],[20]       5,252 [6],[7],[16],[17]        
Cost 0 [3],[10],[20]       0 [6],[7],[17]        
Fair Value (19) [3],[10],[20]       $ (53) [6],[7],[17]        
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [7],[15],[17]         6.25% 6.25%      
Interest Rate Margin [7],[15],[17]         5.50% 5.50%      
Principal amount or par value [7],[16],[17]         $ 15        
Cost [7],[17]         15        
Fair Value [7],[17]         15        
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 893 [3],[4],[10],[11]       878 [7],[16],[17]        
Cost (9) [3],[4],[10]       (9) [7],[17]        
Fair Value $ (29) [3],[4],[10]       $ (9) [7],[17]        
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [3],[9],[20] 9.17% [3],[9],[20] 9.17% [3],[9],[20]   6.25% [15],[21] 6.25% [15],[21]      
Interest Rate Margin 5.50% [3],[9],[20] 5.50% [3],[9],[20] 5.50% [3],[9],[20]   5.50% [15],[21] 5.50% [15],[21]      
Principal amount or par value $ 11,340 [3],[11],[20]       $ 11,426 [16],[21]        
Cost 11,246 [3],[20]       11,318 [21]        
Fair Value $ 10,972 [3],[20]       $ 11,311 [21]        
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.17% [3],[4],[9] 9.17% [3],[4],[9] 9.17% [3],[4],[9]   6.25% [7],[15] 6.25% [7],[15]      
Interest Rate Margin 5.50% [3],[4],[9] 5.50% [3],[4],[9] 5.50% [3],[4],[9]   5.50% [7],[15] 5.50% [7],[15]      
Principal amount or par value $ 1,476 [3],[4],[11]       $ 1,488 [7],[16]        
Cost 1,463 [3],[4]       1,473 [7]        
Fair Value $ 1,429 [3],[4]       $ 1,473 [7]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.76% [3],[9],[19],[20] 10.76% [3],[9],[19],[20] 10.76% [3],[9],[19],[20]   8.50% [15],[18] 8.50% [15],[18]      
Interest Rate Margin 5.50% [3],[9],[19],[20] 5.50% [3],[9],[19],[20] 5.50% [3],[9],[19],[20]   5.50% [15],[18] 5.50% [15],[18]      
Interest rate PIK 2.00% [3],[9],[19],[20] 2.00% [3],[9],[19],[20] 2.00% [3],[9],[19],[20]   2.00% [15],[18] 2.00% [15],[18]      
Principal amount or par value $ 12,805 [3],[11],[20]       $ 12,643 [6],[16],[21]        
Cost 12,805 [3],[20]       12,643 [6],[21]        
Fair Value $ 12,793 [3],[20]       $ 12,643 [6],[21]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.76% [3],[4],[9],[19] 10.76% [3],[4],[9],[19] 10.76% [3],[4],[9],[19]   8.50% [6],[7],[15],[18] 8.50% [6],[7],[15],[18]      
Interest Rate Margin 5.50% [3],[4],[9],[19] 5.50% [3],[4],[9],[19] 5.50% [3],[4],[9],[19]   5.50% [6],[7],[15],[18] 5.50% [6],[7],[15],[18]      
Interest rate PIK 2.00% [3],[4],[9],[19] 2.00% [3],[4],[9],[19] 2.00% [3],[4],[9],[19]   2.00% [6],[7],[15],[18] 2.00% [6],[7],[15],[18]      
Principal amount or par value $ 9,480 [3],[4],[11]       $ 9,363 [6],[7],[16]        
Cost 8,932 [3],[4]       8,628 [6],[7]        
Fair Value $ 9,472 [3],[4]       $ 9,363 [6],[7]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.76% [3],[9],[19],[20] 10.76% [3],[9],[19],[20] 10.76% [3],[9],[19],[20]   8.50% [15],[18] 8.50% [15],[18]      
Interest Rate Margin 5.50% [3],[9],[19],[20] 5.50% [3],[9],[19],[20] 5.50% [3],[9],[19],[20]   5.50% [15],[18] 5.50% [15],[18]      
Interest rate PIK 2.00% [3],[9],[19],[20] 2.00% [3],[9],[19],[20] 2.00% [3],[9],[19],[20]   2.00% [15],[18] 2.00% [15],[18]      
Principal amount or par value $ 2,561 [3],[11],[20]       $ 2,528 [6],[16],[21]        
Cost 2,561 [3],[20]       2,528 [6],[21]        
Fair Value $ 2,558 [3],[20]       $ 2,528 [6],[21]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., First lien 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.76% [3],[4],[9],[19] 10.76% [3],[4],[9],[19] 10.76% [3],[4],[9],[19]   8.50% [6],[7],[15],[18] 8.50% [6],[7],[15],[18]      
Interest Rate Margin 5.50% [3],[4],[9],[19] 5.50% [3],[4],[9],[19] 5.50% [3],[4],[9],[19]   5.50% [6],[7],[15],[18] 5.50% [6],[7],[15],[18]      
Interest rate PIK 2.00% [3],[4],[9],[19] 2.00% [3],[4],[9],[19] 2.00% [3],[4],[9],[19]   2.00% [6],[7],[15],[18] 2.00% [6],[7],[15],[18]      
Principal amount or par value $ 1,373 [3],[4],[11]       $ 1,354 [6],[7],[16]        
Cost 1,264 [3],[4]       1,208 [6],[7]        
Fair Value 1,372 [3],[4]       1,354 [6],[7]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Junior preferred shares, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 34,393                
Fair Value 0                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 1,926 [3],[20]       1,925 [6],[21]        
Fair Value 0 [3],[20]       0 [6],[21]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 533 [3],[4]       532 [6],[7]        
Fair Value 0 [3],[4]       0 [6],[7]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 14,699 [3],[4],[78]       12,698 [6],[7],[79]        
Fair Value 12,350 [3],[4],[78]       11,085 [6],[7],[79]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 8,736 [3],[4],[78]       7,547 [6],[7],[79]        
Fair Value 7,830 [3],[4],[78]       7,215 [6],[7],[79]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 19,795 [3],[4],[25],[80]       19,795 [6],[7],[26],[81]        
Fair Value 2,194 [3],[4],[25],[80]       396 [6],[7],[26],[81]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 4                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 26,946 [3],[20],[25],[82]       26,946 [6],[21],[26],[83]        
Fair Value 0 [3],[20],[25],[82]       0 [6],[21],[26],[83]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 5                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 7,447 [3],[4],[25],[82]       7,447 [6],[7],[26],[83]        
Fair Value $ 0 [3],[4],[25],[82]       $ 0 [6],[7],[26],[83]        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[18]         15.00% 15.00%      
Principal amount or par value [6],[7],[16]         $ 9,970        
Cost [6],[7]         9,970        
Fair Value [6],[7]         9,970        
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 15.00% 15.00% 15.00%            
Principal amount or par value [3],[4],[11] $ 11,148                
Cost [3],[4] 11,148                
Fair Value [3],[4] $ 10,385                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[19] 15.00% 15.00% 15.00%            
Principal amount or par value [3],[4],[11] $ 4,942                
Cost [3],[4] 4,942                
Fair Value [3],[4] 4,604                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Senior preferred shares, Non-accrual status                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value             $ 19,795    
Cost 19,795                
Fair Value 2,194                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Warrants                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Cost 0 [3],[4]       0 [6],[7]        
Fair Value $ 29,595 [3],[4]       $ 13,081 [6],[7]        
Investment, Identifier [Axis]: VT Topco, Inc., Second lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.87% [3],[9],[20] 9.87% [3],[9],[20] 9.87% [3],[9],[20]   7.50% [15],[21] 7.50% [15],[21]      
Interest Rate Margin 6.75% [3],[9],[20] 6.75% [3],[9],[20] 6.75% [3],[9],[20]   6.75% [15],[21] 6.75% [15],[21]      
Principal amount or par value $ 16,183 [3],[11],[20]       $ 16,183 [16],[21]        
Cost 16,135 [3],[20]       16,127 [21]        
Fair Value $ 15,905 [3],[20]       $ 16,224 [21]        
Investment, Identifier [Axis]: VT Topco, Inc., Second lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 9.87% [3],[9],[12] 9.87% [3],[9],[12] 9.87% [3],[9],[12]   6.85% [15],[24] 6.85% [15],[24]      
Interest Rate Margin 6.75% [3],[9],[12] 6.75% [3],[9],[12] 6.75% [3],[9],[12]   6.75% [15],[24] 6.75% [15],[24]      
Principal amount or par value $ 10,000 [3],[11],[12]       $ 10,000 [16],[24]        
Cost 9,986 [3],[12]       9,984 [24]        
Fair Value $ 9,828 [3],[12]       $ 10,025 [24]        
Investment, Identifier [Axis]: Vectra Co., Second lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.37% [3],[9],[13] 10.37% [3],[9],[13] 10.37% [3],[9],[13]   7.35% [14],[15] 7.35% [14],[15]      
Interest Rate Margin 7.25% [3],[9],[13] 7.25% [3],[9],[13] 7.25% [3],[9],[13]   7.25% [14],[15] 7.25% [14],[15]      
Principal amount or par value $ 10,788 [3],[11],[13]       $ 10,788 [14],[16]        
Cost 10,767 [3],[13]       10,764 [14]        
Fair Value $ 8,787 [3],[13]       $ 10,586 [14]        
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 9.96% 9.96% 9.96%            
Interest Rate Margin [3],[4],[9],[10] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[4],[10],[11] $ 1,255                
Cost [3],[4],[10] 1,289                
Fair Value [3],[4],[10] 1,255                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.75% 6.75%      
Interest Rate Margin [6],[7],[15],[17]         5.75% 5.75%      
Principal amount or par value [6],[7],[16],[17]         $ 9,390        
Cost [6],[7],[17]         9,367        
Fair Value [6],[7],[17]         $ 9,390        
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         6.75% 6.75%      
Interest Rate Margin [6],[7],[15],[17]         5.75% 5.75%      
Principal amount or par value [6],[7],[16],[17]         $ 425        
Cost [6],[7],[17]         424        
Fair Value [6],[7],[17]         425        
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 2,040 [3],[4],[10],[11]       678 [6],[7],[16],[17]        
Cost (6) [3],[4],[10]       (2) [6],[7],[17]        
Fair Value 0 [3],[4],[10]       0 [6],[7],[17]        
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         8,257        
Cost [6],[7],[17]         0        
Fair Value [6],[7],[17]         $ 0        
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 14,550                
Cost [3],[4],[10] (36)                
Fair Value [3],[4],[10] $ 0                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.54% 8.54% 8.54%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 18,988                
Cost [3],[20] 18,933                
Fair Value [3],[20] $ 18,988                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 9.41% 9.41% 9.41%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 1,257                
Cost [3],[20] 1,245                
Fair Value [3],[20] $ 1,257                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[20] 8.05% 8.05% 8.05%            
Interest Rate Margin [3],[9],[20] 6.00% 6.00% 6.00%            
Principal amount or par value [3],[11],[20] $ 843                
Cost [3],[20] 835                
Fair Value [3],[20] $ 843                
Investment, Identifier [Axis]: Xactly Corporation, First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 10.06% [3],[9],[12] 10.06% [3],[9],[12] 10.06% [3],[9],[12]   8.25% [6],[15],[24] 8.25% [6],[15],[24]      
Interest Rate Margin 7.25% [3],[9],[12] 7.25% [3],[9],[12] 7.25% [3],[9],[12]   7.25% [6],[15],[24] 7.25% [6],[15],[24]      
Principal amount or par value $ 19,047 [3],[11],[12]       $ 19,047 [6],[16],[24]        
Cost 19,024 [3],[12]       19,005 [6],[24]        
Fair Value $ 19,047 [3],[12]       19,047 [6],[24]        
Investment, Identifier [Axis]: Xactly Corporation, First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 10.82% 10.82% 10.82%            
Interest Rate Margin [3],[4],[9],[10] 7.25% 7.25% 7.25%            
Principal amount or par value [3],[4],[10],[11] $ 992                
Cost [3],[4],[10] 982                
Fair Value [3],[4],[10] $ 992                
Investment, Identifier [Axis]: Xactly Corporation, First lien - Undrawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [6],[7],[16],[17]         992        
Cost [6],[7],[17]         (10)        
Fair Value [6],[7],[17]         0        
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Drawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 7.92% 7.92% 7.92%            
Interest Rate Margin [3],[4],[9],[10] 5.00% 5.00% 5.00%            
Principal amount or par value [3],[4],[10],[11] $ 397                
Cost [3],[4],[10] 395                
Fair Value [3],[4],[10] $ 389                
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Drawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[4],[9],[10] 7.81% 7.81% 7.81%            
Interest Rate Margin [3],[4],[9],[10] 5.00% 5.00% 5.00%            
Principal amount or par value [3],[4],[10],[11] $ 240                
Cost [3],[4],[10] 256                
Fair Value [3],[4],[10] 236                
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,838 [3],[10],[11],[35]       2,078 [6],[16],[17],[36]        
Cost (18) [3],[10],[35]       0 [6],[17],[36]        
Fair Value (34) [3],[10],[35]       0 [6],[17],[36]        
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 3,571 [3],[4],[10],[11]       3,968 [6],[7],[16],[17]        
Cost (18) [3],[4],[10]       (20) [6],[7],[17]        
Fair Value $ (66) [3],[4],[10]       $ 0 [6],[7],[17]        
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.75% [3],[9],[35] 6.75% [3],[9],[35] 6.75% [3],[9],[35]   6.25% [6],[15],[36] 6.25% [6],[15],[36]      
Interest Rate Margin 5.00% [3],[9],[35] 5.00% [3],[9],[35] 5.00% [3],[9],[35]   5.25% [6],[15],[36] 5.25% [6],[15],[36]      
Principal amount or par value $ 17,907 [3],[11],[35]       $ 18,045 [6],[16],[36]        
Cost 17,857 [3],[35]       17,983 [6],[36]        
Fair Value $ 17,576 [3],[35]       $ 18,045 [6],[36]        
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.95% [3],[9],[35] 7.95% [3],[9],[35] 7.95% [3],[9],[35]   6.25% [6],[15],[36] 6.25% [6],[15],[36]      
Interest Rate Margin 5.00% [3],[9],[35] 5.00% [3],[9],[35] 5.00% [3],[9],[35]   5.25% [6],[15],[36] 5.25% [6],[15],[36]      
Principal amount or par value $ 2,332 [3],[11],[35]       $ 2,350 [6],[16],[36]        
Cost 2,325 [3],[35]       2,341 [6],[36]        
Fair Value $ 2,289 [3],[35]       $ 2,350 [6],[36]        
Investment, Identifier [Axis]: iCIMS, Inc., First lien                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [3],[9],[13] 9.49% 9.49% 9.49%            
Interest Rate Margin [3],[9],[13] 6.75% 6.75% 6.75%            
Principal amount or par value [3],[11],[13] $ 44,287                
Cost [3],[13] 43,905                
Fair Value [3],[13] 43,901                
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Drawn                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[7],[15],[17]         7.50% 7.50%      
Interest Rate Margin [6],[7],[15],[17]         6.50% 6.50%      
Principal amount or par value [6],[7],[16],[17]         $ 2,915        
Cost [6],[7],[17]         2,886        
Fair Value [6],[7],[17]         $ 2,915        
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[10],[11],[13] 11,763                
Cost [3],[10],[13] 0                
Fair Value [3],[10],[13] 0                
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value [3],[4],[10],[11] 4,218                
Cost [3],[4],[10] (37)                
Fair Value [3],[4],[10] (37)                
Investment, Identifier [Axis]: iCIMS, Inc., First lien 1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15]         6.50% 6.50%      
Principal amount or par value [6],[14],[16]         $ 41,636        
Cost [6],[14]         41,413        
Fair Value [6],[14]         $ 41,636        
Investment, Identifier [Axis]: iCIMS, Inc., First lien 2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate [6],[14],[15]         7.50% 7.50%      
Interest Rate Margin [6],[14],[15]         6.50% 6.50%      
Principal amount or par value [6],[14],[16]         $ 8,667        
Cost [6],[14]         8,618        
Fair Value [6],[14]         8,666        
SLP III                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 681,054       709,517        
Cost 672,350       701,743        
Fair Value 635,750       702,148        
SLP III | Funded Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 676,883       704,948        
Cost 672,359       701,756        
Fair Value 636,093       702,149        
SLP III | Unfunded Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 4,171       4,569        
Cost (9)       (13)        
Fair Value $ (343)       $ (1)        
SLP III | Investment, Identifier [Axis]: ADMI Corp. (aka Aspen Dental), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.00% 4.00%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.50% 3.50%      
Principal amount or par value $ 2,406       $ 2,424        
Cost 2,396       2,413        
Fair Value $ 2,134       $ 2,424        
SLP III | Investment, Identifier [Axis]: AG Parent Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.12% 8.12% 8.12%   5.10% 5.10%      
Interest Rate Margin 5.00% 5.00% 5.00%   5.00% 5.00%      
Principal amount or par value $ 12,157       $ 12,250        
Cost 12,120       12,207        
Fair Value $ 11,789       $ 12,227        
SLP III | Investment, Identifier [Axis]: Advisor Group Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.62% 7.62% 7.62%   4.60% 4.60%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 9,725       $ 9,800        
Cost 9,696       9,766        
Fair Value $ 9,258       $ 9,832        
SLP III | Investment, Identifier [Axis]: Artera Services, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.17% 7.17% 7.17%   4.50% 4.50%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 6,855       $ 6,907        
Cost 6,820       6,861        
Fair Value $ 5,633       $ 6,706        
SLP III | Investment, Identifier [Axis]: Aston FinCo S.a.r.l. / Aston US Finco, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 5,850       $ 5,895        
Cost 5,814       5,853        
Fair Value $ 5,484       $ 5,877        
SLP III | Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.10% 4.10%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 4,302        
Cost         4,273        
Fair Value         $ 4,278        
SLP III | Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 4,269                
Cost 4,245                
Fair Value $ 4,109                
SLP III | Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.76% 7.76% 7.76%            
Interest Rate Margin 4.63% 4.63% 4.63%            
Principal amount or par value $ 3,265                
Cost 3,158                
Fair Value $ 3,175                
SLP III | Investment, Identifier [Axis]: Bearcat Buyer, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.25% 5.25%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 19,456        
Cost         19,388        
Fair Value         $ 19,455        
SLP III | Investment, Identifier [Axis]: Bearcat Buyer, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.25% 5.25%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 4,033        
Cost         4,018        
Fair Value         $ 4,033        
SLP III | Investment, Identifier [Axis]: Bella Holding Company, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.50% 4.50%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 2,243       $ 2,260        
Cost 2,225       2,240        
Fair Value $ 2,098       $ 2,262        
SLP III | Investment, Identifier [Axis]: Bluefin Holding, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.43% 4.43%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 9,800        
Cost         9,696        
Fair Value         $ 9,800        
SLP III | Investment, Identifier [Axis]: Bluefin Holding, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.33% 6.33% 6.33%            
Interest Rate Margin 4.25% 4.25% 4.25%            
Principal amount or par value $ 9,725                
Cost 9,637                
Fair Value $ 9,442                
SLP III | Investment, Identifier [Axis]: Bluefin Holding, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.08% 7.08% 7.08%            
Interest Rate Margin 5.00% 5.00% 5.00%            
Principal amount or par value $ 2,569                
Cost 2,535                
Fair Value $ 2,494                
SLP III | Investment, Identifier [Axis]: Bracket Intermediate Holding Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.54% 6.54% 6.54%   4.38% 4.38%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 14,400       $ 14,513        
Cost 14,367       14,471        
Fair Value $ 13,662       $ 14,498        
SLP III | Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,277       $ 4,347        
Cost 4,271       4,339        
Fair Value $ 4,095       $ 4,352        
SLP III | Investment, Identifier [Axis]: Brown Group Holding, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.78% 6.78% 6.78%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 7,063                
Cost 6,888                
Fair Value $ 6,857                
SLP III | Investment, Identifier [Axis]: CE Intermediate I, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.91% 6.91% 6.91%   4.50% 4.50%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 10,948       $ 11,004        
Cost 10,879       10,927        
Fair Value $ 10,236       $ 10,934        
SLP III | Investment, Identifier [Axis]: CHA Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%   5.50% 5.50%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 959       $ 967        
Cost 959       967        
Fair Value $ 943       $ 967        
SLP III | Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.18% 6.18% 6.18%   3.60% 3.60%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 14,401       $ 14,513        
Cost 14,368       14,471        
Fair Value $ 13,498       $ 14,408        
SLP III | Investment, Identifier [Axis]: CVET Midco 2, L.P., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.14% 8.14% 8.14%            
Interest Rate Margin 5.00% 5.00% 5.00%            
Principal amount or par value $ 6,965                
Cost 6,547                
Fair Value $ 6,539                
SLP III | Investment, Identifier [Axis]: Cano Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%   5.25% 5.25%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.50% 4.50%      
Principal amount or par value $ 10,260       $ 6,948        
Cost 10,226       6,910        
Fair Value $ 9,926       $ 6,961        
SLP III | Investment, Identifier [Axis]: Cardinal Parent, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 6,932       $ 6,985        
Cost 6,851       6,893        
Fair Value $ 6,603       $ 6,977        
SLP III | Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.42% 7.42% 7.42%   3.97% 3.97%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 14,438       $ 14,550        
Cost 14,421       14,529        
Fair Value $ 12,683       $ 13,761        
SLP III | Investment, Identifier [Axis]: CommerceHub, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.67% 7.67% 7.67%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 5,731       $ 5,775        
Cost 5,709       5,750        
Fair Value $ 5,177       $ 5,724        
SLP III | Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 2,985        
Cost         2,969        
Fair Value         $ 2,985        
SLP III | Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 4,455        
Cost         4,450        
Fair Value         $ 4,455        
SLP III | Investment, Identifier [Axis]: Community Brands ParentCo, LLC (f.k.a Ministry Brands, LLC), First lien - Funded3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 862        
Cost         861        
Fair Value         $ 862        
SLP III | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 12,054        
Cost         11,993        
Fair Value         12,053        
SLP III | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 11,993                
Cost 11,938                
Fair Value $ 10,614                
SLP III | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 712                
Cost 708                
Fair Value 630                
SLP III | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,926       2,638        
Cost (9)       (13)        
Fair Value $ (221)       $ 0        
SLP III | Investment, Identifier [Axis]: Confluent Medical Technologies, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.30% 7.30% 7.30%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 6,965                
Cost 6,933                
Fair Value $ 6,582                
SLP III | Investment, Identifier [Axis]: Cornerstone OnDemand, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 4,523       $ 4,545        
Cost 4,503       4,523        
Fair Value $ 3,822       $ 4,541        
SLP III | Investment, Identifier [Axis]: Covenant Surgical Partners, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 2,000       $ 9,777        
Cost 1,983       9,711        
Fair Value $ 1,860       $ 9,655        
SLP III | Investment, Identifier [Axis]: Covenant Surgical Partners, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 9,704       $ 2,000        
Cost 9,648       1,980        
Fair Value $ 9,025       $ 1,975        
SLP III | Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.50% 3.50%      
Principal amount or par value $ 7,406       $ 7,463        
Cost 7,382       7,435        
Fair Value $ 6,923       $ 7,471        
SLP III | Investment, Identifier [Axis]: Dealer Tire, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 9,725       $ 9,800        
Cost 9,711       9,783        
Fair Value $ 9,506       $ 9,817        
SLP III | Investment, Identifier [Axis]: Discovery Purchaser Corporation, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.52% 7.52% 7.52%            
Interest Rate Margin 4.38% 4.38% 4.38%            
Principal amount or par value $ 7,100                
Cost 6,532                
Fair Value $ 6,625                
SLP III | Investment, Identifier [Axis]: Dispatch Acquisition Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   5.00% 5.00%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 14,027       $ 14,133        
Cost 13,882       13,970        
Fair Value $ 11,572       $ 14,124        
SLP III | Investment, Identifier [Axis]: Drilling Info Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 18,245       $ 18,387        
Cost 18,202       18,335        
Fair Value $ 17,606       $ 18,249        
SLP III | Investment, Identifier [Axis]: EAB Global, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.31% 6.31% 6.31%   4.00% 4.00%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 3,220       $ 4,250        
Cost 3,206       4,230        
Fair Value $ 3,033       $ 4,234        
SLP III | Investment, Identifier [Axis]: Energize Holdco LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 12,519       $ 12,582        
Cost 12,462       12,519        
Fair Value $ 11,893       $ 12,550        
SLP III | Investment, Identifier [Axis]: EyeCare Partners, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.42% 7.42% 7.42%   3.97% 3.97%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 14,648       $ 14,760        
Cost 14,636       14,745        
Fair Value $ 13,317       $ 14,678        
SLP III | Investment, Identifier [Axis]: Foundational Education Group, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.56% 7.56% 7.56%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   4.25% 4.25%      
Principal amount or par value $ 9,429       $ 9,500        
Cost 9,346       9,408        
Fair Value $ 9,161       $ 9,524        
SLP III | Investment, Identifier [Axis]: Frontline Technologies Intermediate Holdings, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.00% 11.00% 11.00%   6.25% 6.25%      
Interest Rate Margin 4.75% 4.75% 4.75%   5.25% 5.25%      
Principal amount or par value $ 10,000       $ 6,448        
Cost 10,000       6,448        
Fair Value $ 10,000       $ 6,448        
SLP III | Investment, Identifier [Axis]: Frontline Technologies Intermediate Holdings, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.00% 11.00% 11.00%   6.25% 6.25%      
Interest Rate Margin 4.75% 4.75% 4.75%   5.25% 5.25%      
Principal amount or par value $ 6,368       $ 2,012        
Cost 6,368       2,012        
Fair Value $ 6,368       $ 2,012        
SLP III | Investment, Identifier [Axis]: Frontline Technologies Intermediate Holdings, LLC, First lien - Funded3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 11.00% 11.00% 11.00%            
Interest Rate Margin 4.75% 4.75% 4.75%            
Principal amount or par value $ 1,987                
Cost 1,987                
Fair Value $ 1,987                
SLP III | Investment, Identifier [Axis]: Greenway Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 14,257       $ 14,369        
Cost 14,260       14,374        
Fair Value $ 12,840       $ 13,790        
SLP III | Investment, Identifier [Axis]: Heartland Dental, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   3.60% 3.60%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 18,208       $ 18,350        
Cost 18,170       18,302        
Fair Value $ 16,831       $ 18,191        
SLP III | Investment, Identifier [Axis]: Help/Systems Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 18,116       $ 18,254        
Cost 17,993       18,112        
Fair Value $ 16,702       $ 18,214        
SLP III | Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.37% 8.37% 8.37%   6.25% 6.25%      
Interest Rate Margin 5.25% 5.25% 5.25%   5.50% 5.50%      
Principal amount or par value $ 9,102       $ 9,170        
Cost 9,038       9,096        
Fair Value $ 8,994       $ 9,239        
SLP III | Investment, Identifier [Axis]: HighTower Holding, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.73% 6.73% 6.73%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,790       $ 4,826        
Cost 4,750       4,781        
Fair Value $ 4,461       $ 4,838        
SLP III | Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.38% 8.38% 8.38%            
Interest Rate Margin 5.25% 5.25% 5.25%            
Principal amount or par value $ 5,667                
Cost 5,502                
Fair Value $ 5,185                
SLP III | Investment, Identifier [Axis]: Idera, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.32% 6.32% 6.32%   4.50% 4.50%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 15,843       $ 15,964        
Cost 15,832       15,951        
Fair Value $ 14,703       $ 15,997        
SLP III | Investment, Identifier [Axis]: Kestra Advisor Services Holdings A, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.93% 7.93% 7.93%   4.36% 4.36%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 11,965       $ 12,058        
Cost 11,917       12,000        
Fair Value $ 11,532       $ 11,998        
SLP III | Investment, Identifier [Axis]: LI Group Holdings, Inc., , First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 4,585                
Cost 4,576                
Fair Value $ 4,402                
SLP III | Investment, Identifier [Axis]: LI Group Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 4,620        
Cost         4,610        
Fair Value         $ 4,620        
SLP III | Investment, Identifier [Axis]: LSCS Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%   5.00% 5.00%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 7,586       $ 7,644        
Cost 7,552       7,605        
Fair Value 7,283       7,663        
SLP III | Investment, Identifier [Axis]: Largest Portfolio Company Investment                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 18,355       $ 23,489        
SLP III | Investment, Identifier [Axis]: MED ParentCo, LP, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 12,621       $ 12,718        
Cost 12,548       12,633        
Fair Value $ 10,702       $ 12,727        
SLP III | Investment, Identifier [Axis]: MH Sub I, LLC (Micro Holding Corp.), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 10,722       $ 10,804        
Cost 10,702       10,777        
Fair Value $ 10,240       $ 10,842        
SLP III | Investment, Identifier [Axis]: Mamba Purchaser, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.55% 6.55% 6.55%   4.25% 4.25%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.75% 3.75%      
Principal amount or par value $ 5,744       $ 5,773        
Cost 5,719       5,745        
Fair Value $ 5,464       $ 5,777        
SLP III | Investment, Identifier [Axis]: Maravai Intermediate Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.75% 4.75%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 2,939        
Cost         2,914        
Fair Value         $ 2,956        
SLP III | Investment, Identifier [Axis]: Maverick Bidco Inc., , First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.56% 6.56% 6.56%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 3,970                
Cost 3,954                
Fair Value $ 3,816                
SLP III | Investment, Identifier [Axis]: Maverick Bidco Inc., , First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.59% 7.59% 7.59%            
Interest Rate Margin 5.00% 5.00% 5.00%            
Principal amount or par value $ 2,000                
Cost 1,901                
Fair Value $ 1,923                
SLP III | Investment, Identifier [Axis]: Maverick Bidco Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 4,000        
Cost         3,982        
Fair Value         $ 4,008        
SLP III | Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.25% 7.25% 7.25%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,184       $ 4,216        
Cost 4,167       4,197        
Fair Value $ 3,937       $ 4,224        
SLP III | Investment, Identifier [Axis]: Mercury Borrower, Inc., Dirst lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.19% 7.19% 7.19%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 4,189                
Cost 4,170                
Fair Value $ 3,823                
SLP III | Investment, Identifier [Axis]: Mercury Borrower, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.00% 4.00%      
Interest Rate Margin         3.50% 3.50%      
Principal amount or par value         $ 4,211        
Cost         4,189        
Fair Value         $ 4,204        
SLP III | Investment, Identifier [Axis]: Mitnick Corporate Purchaser, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.39% 7.39% 7.39%            
Interest Rate Margin 4.75% 4.75% 4.75%            
Principal amount or par value $ 4,667                
Cost 4,644                
Fair Value $ 4,449                
SLP III | Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 5.75% 5.75% 5.75%   3.72% 3.72%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 8,500       $ 8,540        
Cost 8,498       8,538        
Fair Value $ 8,266       $ 8,526        
SLP III | Investment, Identifier [Axis]: Navex Topco, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.37% 6.37% 6.37%   3.36% 3.36%      
Interest Rate Margin 3.25% 3.25% 3.25%   3.25% 3.25%      
Principal amount or par value $ 10,916       $ 17,024        
Cost 10,866       16,927        
Fair Value $ 10,597       $ 16,946        
SLP III | Investment, Identifier [Axis]: Netsmart, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 3,950       $ 3,980        
Cost 3,950       3,980        
Fair Value $ 3,777       $ 3,992        
SLP III | Investment, Identifier [Axis]: Newport Group Holdings II, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         3.72% 3.72%      
Interest Rate Margin         3.50% 3.50%      
Principal amount or par value         $ 4,838        
Cost         4,824        
Fair Value         $ 4,835        
SLP III | Investment, Identifier [Axis]: Outcomes Group Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.17% 7.17% 7.17%   3.47% 3.47%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.25% 3.25%      
Principal amount or par value $ 3,340       $ 3,366        
Cost 3,336       3,361        
Fair Value $ 3,198       $ 3,335        
SLP III | Investment, Identifier [Axis]: Pearls (Netherlands) Bidco B.V., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.78% 6.78% 6.78%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 1,732                
Cost 1,728                
Fair Value $ 1,587                
SLP III | Investment, Identifier [Axis]: Peraton Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.50% 4.50%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 7,253       $ 7,444        
Cost 7,224       7,410        
Fair Value $ 6,893       $ 7,460        
SLP III | Investment, Identifier [Axis]: PetVet Care Centers, LLC (fka Pearl Intermediate Parent LLC), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   4.25% 4.25%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 4,584       $ 5,719        
Cost 4,582       5,716        
Fair Value $ 4,275       $ 5,726        
SLP III | Investment, Identifier [Axis]: Physician Partners, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 8,076                
Cost 8,000                
Fair Value $ 7,632                
SLP III | Investment, Identifier [Axis]: Planview Parent, Inc., , First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.67% 7.67% 7.67%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 7,859                
Cost 7,798                
Fair Value $ 7,499                
SLP III | Investment, Identifier [Axis]: Planview Parent, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.75% 4.75%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 7,919        
Cost         7,850        
Fair Value         $ 7,929        
SLP III | Investment, Identifier [Axis]: Premise Health Holding Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   3.72% 3.72%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.50% 3.50%      
Principal amount or par value $ 7,425       $ 7,483        
Cost 7,408       7,462        
Fair Value $ 7,202       $ 7,455        
SLP III | Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.00% 4.00%      
Interest Rate Margin         3.25% 3.25%      
Principal amount or par value         $ 11,414        
Cost         11,361        
Fair Value         $ 11,407        
SLP III | Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.37% 6.37% 6.37%            
Interest Rate Margin 3.25% 3.25% 3.25%            
Principal amount or par value $ 4,363                
Cost 4,345                
Fair Value $ 4,087                
SLP III | Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.89% 8.89% 8.89%            
Interest Rate Margin 5.75% 5.75% 5.75%            
Principal amount or par value $ 5,000                
Cost 4,851                
Fair Value $ 4,850                
SLP III | Investment, Identifier [Axis]: Quest Software US Holdings Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.38% 4.38%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 14,550        
Cost         14,511        
Fair Value         $ 14,555        
SLP III | Investment, Identifier [Axis]: RLG Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   5.00% 5.00%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.25% 4.25%      
Principal amount or par value $ 5,800       $ 5,844        
Cost 5,775       5,816        
Fair Value $ 5,471       $ 5,841        
SLP III | Investment, Identifier [Axis]: RealPage, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.12% 6.12% 6.12%   3.75% 3.75%      
Interest Rate Margin 3.00% 3.00% 3.00%   3.25% 3.25%      
Principal amount or par value $ 10,185       $ 13,965        
Cost 10,164       13,933        
Fair Value $ 9,558       $ 13,941        
SLP III | Investment, Identifier [Axis]: Sierra Enterprises, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   5.00% 5.00%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 2,387       $ 2,406        
Cost 2,386       2,405        
Fair Value $ 2,173       $ 2,406        
SLP III | Investment, Identifier [Axis]: Snap One Holdings Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.38% 7.38% 7.38%   5.00% 5.00%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 6,639       $ 6,672        
Cost 6,579       6,606        
Fair Value $ 6,058       $ 6,664        
SLP III | Investment, Identifier [Axis]: Sovos Brands Intermediate, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   4.50% 4.50%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.75% 3.75%      
Principal amount or par value $ 9,429       $ 9,429        
Cost 9,410       9,407        
Fair Value $ 9,013       $ 9,437        
SLP III | Investment, Identifier [Axis]: Spring Education Group, Inc. (fka SSH Group Holdings, Inc.), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   4.47% 4.47%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 11,965       $ 12,058        
Cost 11,951       12,041        
Fair Value $ 11,406       $ 11,666        
SLP III | Investment, Identifier [Axis]: Storable, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.38% 6.38% 6.38%   3.75% 3.75%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.25% 3.25%      
Principal amount or par value $ 3,833       $ 3,862        
Cost 3,825       3,853        
Fair Value $ 3,603       $ 3,854        
SLP III | Investment, Identifier [Axis]: Symplr Software, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.63% 7.63% 7.63%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 15,760       $ 15,880        
Cost 15,645       15,750        
Fair Value $ 14,880       $ 15,938        
SLP III | Investment, Identifier [Axis]: Syndigo LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.32% 7.32% 7.32%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 14,775       $ 14,888        
Cost 14,689       14,790        
Fair Value $ 14,338       $ 14,925        
SLP III | Investment, Identifier [Axis]: TIBCO Software Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         3.86% 3.86%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 7,577        
Cost         7,563        
Fair Value         $ 7,535        
SLP III | Investment, Identifier [Axis]: Therapy Brands Holdings LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.99% 6.99% 6.99%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 3,374       $ 3,400        
Cost 3,360       3,384        
Fair Value 3,223       3,400        
SLP III | Investment, Identifier [Axis]: Therapy Brands Holdings LLC, First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 735       735        
Cost 0       0        
Fair Value $ (33)       $ 0        
SLP III | Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.57% 7.57% 7.57%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 6,018       $ 5,953        
Cost 5,992       5,924        
Fair Value 5,814       5,953        
SLP III | Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 937       1,047        
Cost 0       0        
Fair Value (32)       0        
SLP III | Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 88,767       $ 95,504        
SLP III | Investment, Identifier [Axis]: Trader Interactive, LLC (fka Dominion Web Solutions LLC), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 4,910        
Cost         4,886        
Fair Value         $ 4,904        
SLP III | Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 9,950        
Cost         9,883        
Fair Value         9,984        
SLP III | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value         149        
Cost         0        
Fair Value         $ (1)        
SLP III | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   3.35% 3.35%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.25% 3.25%      
Principal amount or par value $ 31       $ 2,766        
Cost 31       2,766        
Fair Value $ 30       $ 2,748        
SLP III | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   4.50% 4.50%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.75% 3.75%      
Principal amount or par value $ 2,736       $ 849        
Cost 2,736       845        
Fair Value $ 2,637       $ 844        
SLP III | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 840                
Cost 837                
Fair Value 808                
SLP III | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 25                
Cost 0                
Fair Value $ (1)                
SLP III | Investment, Identifier [Axis]: Valcour Packaging, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 5.22% 5.22% 5.22%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 4,516       $ 4,538        
Cost 4,503       4,524        
Fair Value $ 4,143       $ 4,538        
SLP III | Investment, Identifier [Axis]: VetCor Professional Practices LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 6,980        
Cost         6,846        
Fair Value         $ 6,922        
SLP III | Investment, Identifier [Axis]: WP CityMD Bidco LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.92% 6.92% 6.92%   3.75% 3.75%      
Interest Rate Margin 3.25% 3.25% 3.25%   3.25% 3.25%      
Principal amount or par value $ 4,159       $ 9,180        
Cost 4,132       9,136        
Fair Value $ 3,986       $ 9,182        
SLP III | Investment, Identifier [Axis]: WatchGuard Technologies, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.28% 8.28% 8.28%            
Interest Rate Margin 5.25% 5.25% 5.25%            
Principal amount or par value $ 5,303                
Cost 4,960                
Fair Value $ 4,949                
SLP III | Investment, Identifier [Axis]: Waystar Technologies, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,035       $ 4,066        
Cost 4,028       4,058        
Fair Value $ 3,879       $ 4,069        
SLP III | Investment, Identifier [Axis]: Wrench Group LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.67% 7.67% 7.67%   4.22% 4.22%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 7,844       $ 7,905        
Cost 7,828       7,886        
Fair Value $ 7,589       $ 7,905        
SLP III | Investment, Identifier [Axis]: YI, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   5.00% 5.00%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 9,515       $ 9,590        
Cost 9,512       9,586        
Fair Value $ 9,309       $ 9,542        
SLP III | Investment, Identifier [Axis]: athenahealth Group Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.58% 6.58% 6.58%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 3,227                
Cost 3,212                
Fair Value 2,900                
SLP III | Investment, Identifier [Axis]: athenahealth Group Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 548                
Cost 0                
Fair Value $ (56)                
SLP III | Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.62% 7.62% 7.62%   5.50% 5.50%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 7,289       $ 7,345        
Cost 7,264       7,316        
Fair Value 6,817       7,388        
SLP IV                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 508,640       513,298        
Cost 501,129       505,043        
Fair Value 475,893       504,948        
SLP IV | Funded Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 504,574       507,195        
Cost 501,135       505,052        
Fair Value 476,179       504,958        
SLP IV | Unfunded Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 4,066       6,103        
Cost (6)       (9)        
Fair Value $ (286)       $ (10)        
SLP IV | Investment, Identifier [Axis]: ADG, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.38% 8.38% 8.38%   6.25% 6.25%      
Interest Rate Margin 4.75% 4.75% 4.75%   4.75% 4.75%      
Interest rate PIK 0.50% 0.50% 0.50%   50.00% 50.00%      
Principal amount or par value $ 16,627       $ 16,565        
Cost 16,601       16,518        
Fair Value $ 16,627       $ 16,565        
SLP IV | Investment, Identifier [Axis]: ADMI Corp. (aka Aspen Dental), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.00% 4.00%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.50% 3.50%      
Principal amount or par value $ 1,856       $ 1,870        
Cost 1,849       1,862        
Fair Value $ 1,646       $ 1,870        
SLP IV | Investment, Identifier [Axis]: Advisor Group Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.62% 7.62% 7.62%   4.60% 4.60%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 11,607       $ 11,697        
Cost 11,538       11,615        
Fair Value $ 11,050       $ 11,735        
SLP IV | Investment, Identifier [Axis]: Artera Services, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.17% 7.17% 7.17%   4.50% 4.50%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 5,288       $ 5,329        
Cost 5,261       5,293        
Fair Value $ 4,345       $ 5,173        
SLP IV | Investment, Identifier [Axis]: Barracuda Networks, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.53% 7.53% 7.53%            
Interest Rate Margin 4.50% 4.50% 4.50%            
Principal amount or par value $ 5,000                
Cost 4,852                
Fair Value $ 4,715                
SLP IV | Investment, Identifier [Axis]: Bayou Intermediate II, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.30% 7.30% 7.30%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 8,628       $ 8,693        
Cost 8,591       8,652        
Fair Value $ 8,218       $ 8,704        
SLP IV | Investment, Identifier [Axis]: Bearcat Buyer, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.25% 5.25%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 1,976        
Cost         1,969        
Fair Value         $ 1,976        
SLP IV | Investment, Identifier [Axis]: Bearcat Buyer, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.25% 5.25%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 410        
Cost         408        
Fair Value         $ 410        
SLP IV | Investment, Identifier [Axis]: Bella Holding Company, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.50% 4.50%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 1,755       $ 1,769        
Cost 1,750       1,763        
Fair Value $ 1,641       $ 1,770        
SLP IV | Investment, Identifier [Axis]: Bleriot US Bidco Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.67% 7.67% 7.67%   4.22% 4.22%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 3,950       $ 3,980        
Cost 3,950       3,980        
Fair Value $ 3,831       $ 3,983        
SLP IV | Investment, Identifier [Axis]: Bracket Intermediate Holding Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.54% 6.54% 6.54%   4.38% 4.38%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 4,439       $ 4,473        
Cost 4,428       4,461        
Fair Value $ 4,211       $ 4,469        
SLP IV | Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 2,351       $ 2,390        
Cost 2,348       2,385        
Fair Value $ 2,251       $ 2,392        
SLP IV | Investment, Identifier [Axis]: Brown Group Holding, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.78% 6.78% 6.78%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 5,438                
Cost 5,302                
Fair Value $ 5,279                
SLP IV | Investment, Identifier [Axis]: CE Intermediate I, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.91% 6.91% 6.91%   4.50% 4.50%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 8,198       $ 8,239        
Cost 8,145       8,182        
Fair Value $ 7,665       $ 8,188        
SLP IV | Investment, Identifier [Axis]: CHA Holdings, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%            
Interest Rate Margin 4.50% 4.50% 4.50%            
Principal amount or par value $ 10,834                
Cost 10,814                
Fair Value $ 10,649                
SLP IV | Investment, Identifier [Axis]: CHA Holdings, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%   5.50% 5.50%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 1,989       $ 2,004        
Cost 1,984       1,998        
Fair Value $ 1,955       $ 2,004        
SLP IV | Investment, Identifier [Axis]: CHA Holdings, Inc., irst lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.50% 5.50%      
Interest Rate Margin         4.50% 4.50%      
Principal amount or par value         $ 10,919        
Cost         10,894        
Fair Value         $ 10,919        
SLP IV | Investment, Identifier [Axis]: Cano Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%   5.25% 5.25%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.50% 4.50%      
Principal amount or par value $ 8,069       $ 5,737        
Cost 8,063       5,731        
Fair Value $ 7,807       $ 5,748        
SLP IV | Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.42% 7.42% 7.42%   3.97% 3.97%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 14,437       $ 14,550        
Cost 14,420       14,530        
Fair Value $ 12,683       $ 13,761        
SLP IV | Investment, Identifier [Axis]: Certara Holdco, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   3.60% 3.60%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 3,910       $ 3,940        
Cost 3,902       3,931        
Fair Value $ 3,788       $ 3,932        
SLP IV | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 8,076        
Cost         8,035        
Fair Value         8,076        
SLP IV | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 8,035                
Cost 7,998                
Fair Value $ 7,111                
SLP IV | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 475                
Cost 473                
Fair Value 420                
SLP IV | Investment, Identifier [Axis]: Confluent Health, LLC, First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,284       1,759        
Cost (6)       (9)        
Fair Value $ (148)       $ 0        
SLP IV | Investment, Identifier [Axis]: Confluent Medical Technologies, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.30% 7.30% 7.30%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 6,965                
Cost 6,933                
Fair Value $ 6,582                
SLP IV | Investment, Identifier [Axis]: Corgi Bidco, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.14% 8.14% 8.14%            
Interest Rate Margin 5.00% 5.00% 5.00%            
Principal amount or par value $ 2,687                
Cost 2,525                
Fair Value $ 2,522                
SLP IV | Investment, Identifier [Axis]: Cornerstone OnDemand, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 3,231       $ 3,247        
Cost 3,216       3,231        
Fair Value $ 2,730       $ 3,244        
SLP IV | Investment, Identifier [Axis]: Cvent, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         3.85% 3.85%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 2,322        
Cost         2,319        
Fair Value         $ 2,322        
SLP IV | Investment, Identifier [Axis]: Dealer Tire, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 10,666       $ 10,748        
Cost 10,651       10,729        
Fair Value $ 10,426       $ 10,767        
SLP IV | Investment, Identifier [Axis]: Discovery Purchaser Corporation, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.52% 7.52% 7.52%            
Interest Rate Margin 4.38% 4.38% 4.38%            
Principal amount or par value $ 5,400                
Cost 4,968                
Fair Value $ 5,039                
SLP IV | Investment, Identifier [Axis]: Dispatch Acquisition Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   5.00% 5.00%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 9,900       $ 9,975        
Cost 9,789       9,851        
Fair Value $ 8,167       $ 9,969        
SLP IV | Investment, Identifier [Axis]: Drilling Info Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.37% 7.37% 7.37%   4.35% 4.35%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 20,341       $ 20,500        
Cost 20,301       20,449        
Fair Value $ 19,629       $ 20,346        
SLP IV | Investment, Identifier [Axis]: EAB Global, Inc., , First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.31% 6.31% 6.31%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 6,438                
Cost 6,410                
Fair Value $ 6,064                
SLP IV | Investment, Identifier [Axis]: EAB Global, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.00% 4.00%      
Interest Rate Margin         3.50% 3.50%      
Principal amount or par value         $ 10,000        
Cost         9,952        
Fair Value         $ 9,961        
SLP IV | Investment, Identifier [Axis]: Emerald 2 Limited, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.92% 6.92% 6.92%   3.47% 3.47%      
Interest Rate Margin 3.25% 3.25% 3.25%   3.25% 3.25%      
Principal amount or par value $ 442       $ 445        
Cost 441       444        
Fair Value $ 426       $ 443        
SLP IV | Investment, Identifier [Axis]: Energize Holdco LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 9,023                
Cost 8,982                
Fair Value $ 8,572                
SLP IV | Investment, Identifier [Axis]: Energize Holdco LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.25% 4.25%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 9,068        
Cost         9,023        
Fair Value         $ 9,045        
SLP IV | Investment, Identifier [Axis]: EyeCare Partners, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.42% 7.42% 7.42%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 9,950                
Cost 9,928                
Fair Value $ 9,030                
SLP IV | Investment, Identifier [Axis]: EyeCare Partners, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.25% 4.25%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 8,000        
Cost         7,980        
Fair Value         $ 7,982        
SLP IV | Investment, Identifier [Axis]: EyeCare Partners, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         6.00% 6.00%      
Interest Rate Margin         2.75% 2.75%      
Principal amount or par value         $ 1,364        
Cost         1,360        
Fair Value         1,360        
SLP IV | Investment, Identifier [Axis]: EyeCare Partners, LLC, First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value         636        
Cost         0        
Fair Value         $ (1)        
SLP IV | Investment, Identifier [Axis]: Foundational Education Group, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.56% 7.56% 7.56%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   4.25% 4.25%      
Principal amount or par value $ 6,451       $ 6,500        
Cost 6,395       6,438        
Fair Value $ 6,268       $ 6,516        
SLP IV | Investment, Identifier [Axis]: Geo Parent Corporation, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.37% 8.37% 8.37%            
Interest Rate Margin 5.25% 5.25% 5.25%            
Principal amount or par value $ 9,735                
Cost 9,508                
Fair Value $ 9,566                
SLP IV | Investment, Identifier [Axis]: Greenway Health, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 20,784       $ 20,948        
Cost 20,760       20,912        
Fair Value $ 18,718       $ 20,104        
SLP IV | Investment, Identifier [Axis]: Heartland Dental, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   3.60% 3.60%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 3,545       $ 3,572        
Cost 3,537       3,563        
Fair Value $ 3,277       $ 3,541        
SLP IV | Investment, Identifier [Axis]: Heartland Dental, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.08% 7.08% 7.08%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 6,221       $ 6,269        
Cost 6,200       6,241        
Fair Value $ 5,792       $ 6,261        
SLP IV | Investment, Identifier [Axis]: Help/Systems Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 9,833       $ 9,909        
Cost 9,806       9,876        
Fair Value $ 9,066       $ 9,888        
SLP IV | Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.38% 8.38% 8.38%            
Interest Rate Margin 5.25% 5.25% 5.25%            
Principal amount or par value $ 4,048                
Cost 3,932                
Fair Value $ 3,704                
SLP IV | Investment, Identifier [Axis]: Hunter Holdco 3 Limited, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   4.75% 4.75%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 3,949       $ 3,949        
Cost 3,915       3,911        
Fair Value $ 3,742       $ 3,959        
SLP IV | Investment, Identifier [Axis]: Idera, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.32% 6.32% 6.32%   4.50% 4.50%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 9,248       $ 9,318        
Cost 9,183       9,245        
Fair Value $ 8,582       $ 9,338        
SLP IV | Investment, Identifier [Axis]: Kestra Advisor Services Holdings A, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.93% 7.93% 7.93%   4.36% 4.36%      
Interest Rate Margin 4.25% 4.25% 4.25%   4.25% 4.25%      
Principal amount or par value $ 5,444       $ 5,486        
Cost 5,400       5,434        
Fair Value $ 5,247       $ 5,459        
SLP IV | Investment, Identifier [Axis]: Keystone Acquisition Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         6.25% 6.25%      
Interest Rate Margin         5.25% 5.25%      
Principal amount or par value         $ 5,171        
Cost         5,150        
Fair Value         $ 5,146        
SLP IV | Investment, Identifier [Axis]: LSCS Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.17% 8.17% 8.17%   5.00% 5.00%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 8,691       $ 5,897        
Cost 8,655       5,867        
Fair Value 8,344       5,911        
SLP IV | Investment, Identifier [Axis]: Largest Portfolio Company Investment                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 22,041       $ 22,215        
SLP IV | Investment, Identifier [Axis]: MH Sub I, LLC (Micro Holding Corp.), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%   4.75% 4.75%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 7,838       $ 7,898        
Cost 7,824       7,878        
Fair Value $ 7,485       $ 7,925        
SLP IV | Investment, Identifier [Axis]: Mamba Purchaser, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.55% 6.55% 6.55%   4.25% 4.25%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.75% 3.75%      
Principal amount or par value $ 4,103       $ 4,124        
Cost 4,085       4,104        
Fair Value $ 3,903       $ 4,126        
SLP IV | Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.56% 6.56% 6.56%   4.25% 4.25%      
Interest Rate Margin 3.75% 3.75% 3.75%   3.75% 3.75%      
Principal amount or par value $ 9,925       $ 10,000        
Cost 9,883       9,953        
Fair Value $ 9,565       $ 9,975        
SLP IV | Investment, Identifier [Axis]: Maverick Bidco Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 8,000        
Cost         7,963        
Fair Value         $ 8,015        
SLP IV | Investment, Identifier [Axis]: Maverick Bidco Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.56% 6.56% 6.56%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 7,940                
Cost 7,908                
Fair Value $ 7,633                
SLP IV | Investment, Identifier [Axis]: Maverick Bidco Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.59% 7.59% 7.59%            
Interest Rate Margin 5.00% 5.00% 5.00%            
Principal amount or par value $ 2,000                
Cost 1,901                
Fair Value $ 1,923                
SLP IV | Investment, Identifier [Axis]: Mavis Tire Express Services Topco Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.25% 7.25% 7.25%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 8,369       $ 8,432        
Cost 8,334       8,394        
Fair Value $ 7,874       $ 8,447        
SLP IV | Investment, Identifier [Axis]: Mercury Borrower, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.19% 7.19% 7.19%   4.00% 4.00%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 6,203       $ 6,250        
Cost 6,177       6,220        
Fair Value $ 5,660       $ 6,240        
SLP IV | Investment, Identifier [Axis]: Ministry Brands, LLC, First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 16,734        
Cost         16,719        
Fair Value         $ 16,734        
SLP IV | Investment, Identifier [Axis]: Ministry Brands, LLC, First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 2,051        
Cost         2,050        
Fair Value         $ 2,051        
SLP IV | Investment, Identifier [Axis]: Ministry Brands, LLC, First lien - Funded3                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 862        
Cost         861        
Fair Value         $ 862        
SLP IV | Investment, Identifier [Axis]: National Intergovernmental Purchasing Alliance Company, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 5.75% 5.75% 5.75%   3.72% 3.72%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 1,321       $ 1,327        
Cost 1,322       1,329        
Fair Value $ 1,285       $ 1,325        
SLP IV | Investment, Identifier [Axis]: Netsmart, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 6,912       $ 6,965        
Cost 6,912       6,965        
Fair Value $ 6,610       $ 6,987        
SLP IV | Investment, Identifier [Axis]: OEConnection LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.56% 7.56% 7.56%   4.10% 4.10%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,091       $ 4,123        
Cost 4,065       4,092        
Fair Value $ 3,917       $ 4,118        
SLP IV | Investment, Identifier [Axis]: Pearls (Netherlands) Bidco B.V., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.78% 6.78% 6.78%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 1,336                
Cost 1,333                
Fair Value $ 1,224                
SLP IV | Investment, Identifier [Axis]: PetVet Care Centers, LLC (fka Pearl Intermediate Parent LLC), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 7,996                
Cost 7,981                
Fair Value $ 7,456                
SLP IV | Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.25% 4.25%      
Interest Rate Margin         3.50% 3.50%      
Principal amount or par value         $ 9,974        
Cost         9,950        
Fair Value         $ 9,987        
SLP IV | Investment, Identifier [Axis]: Physician Partners, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.13% 7.13% 7.13%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 6,103                
Cost 6,047                
Fair Value $ 5,767                
SLP IV | Investment, Identifier [Axis]: Premise Health Holding Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.92% 7.92% 7.92%   3.72% 3.72%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 1,951       $ 1,966        
Cost 1,947       1,961        
Fair Value $ 1,892       $ 1,959        
SLP IV | Investment, Identifier [Axis]: Project Boost Purchaser, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.00% 4.00%      
Interest Rate Margin         3.50% 3.50%      
Principal amount or par value         $ 2,488        
Cost         2,482        
Fair Value         $ 2,491        
SLP IV | Investment, Identifier [Axis]: Project Boost Purchaser, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 2,469                
Cost 2,464                
Fair Value $ 2,344                
SLP IV | Investment, Identifier [Axis]: Quest Software US Holdings Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.38% 4.38%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 14,550        
Cost         14,512        
Fair Value         $ 14,555        
SLP IV | Investment, Identifier [Axis]: RLG Holdings, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   5.00% 5.00%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.25% 4.25%      
Principal amount or par value $ 4,731       $ 4,767        
Cost 4,711       4,744        
Fair Value $ 4,463       $ 4,765        
SLP IV | Investment, Identifier [Axis]: RealPage, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.12% 6.12% 6.12%   3.75% 3.75%      
Interest Rate Margin 3.00% 3.00% 3.00%   3.25% 3.25%      
Principal amount or par value $ 3,638       $ 4,988        
Cost 3,626       4,970        
Fair Value $ 3,414       $ 4,979        
SLP IV | Investment, Identifier [Axis]: Sierra Enterprises, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 4,216        
Cost         4,204        
Fair Value         $ 4,216        
SLP IV | Investment, Identifier [Axis]: Sierra Enterprises, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%            
Interest Rate Margin 4.00% 4.00% 4.00%            
Principal amount or par value $ 4,183                
Cost 4,174                
Fair Value $ 3,806                
SLP IV | Investment, Identifier [Axis]: Snap One Holdings Corp., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.38% 7.38% 7.38%   5.00% 5.00%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 8,606       $ 8,649        
Cost 8,528       8,563        
Fair Value $ 7,853       $ 8,639        
SLP IV | Investment, Identifier [Axis]: Sovos Brands Intermediate, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   4.50% 4.50%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.75% 3.75%      
Principal amount or par value $ 8,290       $ 8,290        
Cost 8,272       8,270        
Fair Value $ 7,924       $ 8,296        
SLP IV | Investment, Identifier [Axis]: Storable, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.38% 6.38% 6.38%   3.75% 3.75%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.25% 3.25%      
Principal amount or par value $ 3,970       $ 4,000        
Cost 3,950       3,977        
Fair Value $ 3,732       $ 3,991        
SLP IV | Investment, Identifier [Axis]: Symplr Software, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.63% 7.63% 7.63%            
Interest Rate Margin 4.50% 4.50% 4.50%            
Principal amount or par value $ 3,774                
Cost 3,766                
Fair Value $ 3,563                
SLP IV | Investment, Identifier [Axis]: Syndigo LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.32% 7.32% 7.32%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 9,784       $ 7,839        
Cost 9,768       7,834        
Fair Value $ 9,495       $ 7,858        
SLP IV | Investment, Identifier [Axis]: TIBCO Software Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         3.86% 3.86%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 2,977        
Cost         2,961        
Fair Value         $ 2,961        
SLP IV | Investment, Identifier [Axis]: Therapy Brands Holdings LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.99% 6.99% 6.99%   4.75% 4.75%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 4,575       $ 4,609        
Cost 4,556       4,588        
Fair Value 4,369       4,609        
SLP IV | Investment, Identifier [Axis]: Therapy Brands Holdings LLC, First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 1,470       1,470        
Cost 0       0        
Fair Value $ (66)       $ 0        
SLP IV | Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.57% 7.57% 7.57%   5.25% 5.25%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 4,299       $ 4,252        
Cost 4,280       4,231        
Fair Value 4,153       4,252        
SLP IV | Investment, Identifier [Axis]: Thermostat Purchaser III, Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 669       748        
Cost 0       0        
Fair Value (23)       0        
SLP IV | Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value $ 94,230       $ 99,875        
SLP IV | Investment, Identifier [Axis]: Trader Interactive, LLC (fka Dominion Web Solutions LLC), First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         4.00% 4.00%      
Principal amount or par value         $ 5,303        
Cost         5,277        
Fair Value         $ 5,296        
SLP IV | Investment, Identifier [Axis]: USIC Holdings, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.62% 6.62% 6.62%   4.25% 4.25%      
Interest Rate Margin 3.50% 3.50% 3.50%   3.50% 3.50%      
Principal amount or par value $ 3,811       $ 3,839        
Cost 3,798       3,825        
Fair Value $ 3,583       $ 3,839        
SLP IV | Investment, Identifier [Axis]: Unified Women's Healthcare, LP, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 7,400        
Cost         7,365        
Fair Value         $ 7,426        
SLP IV | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.50% 4.50%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 8,489        
Cost         8,451        
Fair Value         8,436        
SLP IV | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 8,399                
Cost 8,368                
Fair Value $ 8,084                
SLP IV | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.87% 6.87% 6.87%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 309                
Cost 309                
Fair Value 298                
SLP IV | Investment, Identifier [Axis]: VT Topco, Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 251       1,490        
Cost 0       0        
Fair Value $ (9)       $ (9)        
SLP IV | Investment, Identifier [Axis]: Valcour Packaging, LLC, , First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         4.25% 4.25%      
Interest Rate Margin         3.75% 3.75%      
Principal amount or par value         $ 3,301        
Cost         3,291        
Fair Value         $ 3,301        
SLP IV | Investment, Identifier [Axis]: Valcour Packaging, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 5.22% 5.22% 5.22%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 3,286                
Cost 3,277                
Fair Value $ 3,015                
SLP IV | Investment, Identifier [Axis]: VetCor Professional Practices LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate         5.00% 5.00%      
Interest Rate Margin         4.25% 4.25%      
Principal amount or par value         $ 9,972        
Cost         9,779        
Fair Value         $ 9,889        
SLP IV | Investment, Identifier [Axis]: Virtusa Corporation, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.81% 6.81% 6.81%            
Interest Rate Margin 3.75% 3.75% 3.75%            
Principal amount or par value $ 2,286                
Cost 2,265                
Fair Value $ 2,150                
SLP IV | Investment, Identifier [Axis]: WP CityMD Bidco LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.92% 6.92% 6.92%   3.75% 3.75%      
Interest Rate Margin 3.25% 3.25% 3.25%   3.25% 3.25%      
Principal amount or par value $ 1,735       $ 7,044        
Cost 1,724       7,002        
Fair Value $ 1,663       $ 7,045        
SLP IV | Investment, Identifier [Axis]: WatchGuard Technologies, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 8.28% 8.28% 8.28%            
Interest Rate Margin 5.25% 5.25% 5.25%            
Principal amount or par value $ 4,091                
Cost 3,826                
Fair Value $ 3,818                
SLP IV | Investment, Identifier [Axis]: Wrench Group LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.67% 7.67% 7.67%   4.22% 4.22%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 9,493       $ 9,567        
Cost 9,443       9,506        
Fair Value $ 9,185       $ 9,567        
SLP IV | Investment, Identifier [Axis]: YI, LLC, First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.12% 7.12% 7.12%   5.00% 5.00%      
Interest Rate Margin 4.00% 4.00% 4.00%   4.00% 4.00%      
Principal amount or par value $ 22,041       $ 22,215        
Cost 22,032       22,203        
Fair Value $ 21,563       $ 22,104        
SLP IV | Investment, Identifier [Axis]: Zone Climate Services, Inc., First lien - Funded1                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.53% 7.53% 7.53%            
Interest Rate Margin 4.75% 4.75% 4.75%            
Principal amount or par value $ 9,950                
Cost 9,767                
Fair Value $ 9,791                
SLP IV | Investment, Identifier [Axis]: Zone Climate Services, Inc., First lien - Funded2                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.60% 7.60% 7.60%            
Interest Rate Margin 4.75% 4.75% 4.75%            
Principal amount or par value $ 2,187                
Cost 2,147                
Fair Value $ 2,152                
SLP IV | Investment, Identifier [Axis]: athenahealth Group Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 6.58% 6.58% 6.58%            
Interest Rate Margin 3.50% 3.50% 3.50%            
Principal amount or par value $ 2,305                
Cost 2,295                
Fair Value 2,071                
SLP IV | Investment, Identifier [Axis]: athenahealth Group Inc., First lien - Unfunded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Principal amount or par value 392                
Cost 0                
Fair Value $ (40)                
SLP IV | Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Funded                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Interest Rate 7.62% 7.62% 7.62%   5.50% 5.50%      
Interest Rate Margin 4.50% 4.50% 4.50%   4.50% 4.50%      
Principal amount or par value $ 4,396       $ 4,429        
Cost 4,366       4,396        
Fair Value $ 4,111       $ 4,455        
[1] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act
[2] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[3] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[4] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower and Goldman Sachs Bank USA as the Administrative Agent and the Collateral Agent and Goldman Sachs Bank USA, Morgan Stanley Bank, N.A., Stifel Bank & Trust and MUFG Union Bank, N.A. as Lenders. See Note 7. Borrowings, for details.
[5] The Company holds ordinary shares in AAC Lender Holdings, LLC and a first lien term loan, first lien revolver and subordinated notes in American Achievement Corporation, a partially-owned subsidiary of AAC Lender Holdings, LLC.
[6] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[7] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower and Goldman Sachs Bank USA as the Administrative Agent and the Collateral Agent and Goldman Sachs Bank USA, Morgan Stanley Bank, N.A., Stifel Bank & Trust and MUFG Union Bank, N.A. as Lenders. See Note 7. Borrowings, for details.
[8] The Company holds ordinary shares in AAC Lender Holdings, LLC and a first lien term loan, first lien revolver and subordinated notes in American Achievement Corporation, a partially-owned subsidiary of AAC Lender Holdings, LLC.
[9] All interest is payable in cash unless otherwise indicated. A majority of the variable rate debt investments bear interest at a rate that may be determined by reference to the London Interbank Offered Rate (L), the Prime Rate (P), the Sterling Overnight Interbank Average Rate (SONIA), Secured Overnight Financing Rate (SOFR), Euro Interbank Offered Rate (EURIBOR) and the alternative base rate (Base) and which resets daily (D), weekly (W), monthly (M), quarterly (Q), semi-annually (S) or annually (A). For each investment the current interest rate provided reflects the rate in effect as of September 30, 2022.
[10] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolving credit facilities or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[11] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[12] Investment is held in New Mountain Finance SBIC, L.P.
[13] Investment is pledged as collateral for the DB Credit Facility, a revolving credit facility among New Mountain Finance DB, L.L.C. as the Borrower and Deutsche Bank AG, New York Branch as the Facility Agent. See Note 7. Borrowings, for details.
[14] Investment is pledged as collateral for the DB Credit Facility, a revolving credit facility among New Mountain Finance DB, L.L.C as the Borrower and Deutsche Bank AG, New York Branch as the Facility Agent. See Note 7. Borrowings, for details.
[15] All interest is payable in cash unless otherwise indicated. A majority of the variable rate debt investments bear interest at a rate that may be determined by reference to the London Interbank Offered Rate (L), the Prime Rate (P), the Sterling Overnight Interbank Average Rate (Sonia), and the alternative base rate (Base) and which resets daily (D), weekly (W), monthly (M), quarterly (Q), semi-annually (S) or annually (A). For each investment the current interest rate provided reflects the rate in effect as of December 31, 2021.
[16] Par amount is denominated in United States Dollar unless otherwise noted, British Pound ("£").
[17] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolving credit facilities or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[18] All or a portion of interest contains PIK interest.
[19] All or a portion of interest contains PIK interest. See Note 2. Summary of Significant Accounting Policies-Revenue Recognition, for details.
[20] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. ("NMF Holdings") as the Borrower, Wells Fargo Securities, LLC, as the Administrative Agent and Wells Fargo Bank, National Association, as the Lender and Collateral Custodian. See Note 7. Borrowings, for details.
[21] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. ("NMF Holdings") as the Borrower and Wells Fargo Bank, National Association as the Administrative Agent and Collateral Custodian. See Note 7. Borrowings, for details.
[22] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, a first lien delayed draw and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc. The preferred equity in ACI Parent Inc. is entitled to receive cumulative preferential dividends at a rate of 11.75% per annum.
[23] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, a first lien delayed draw and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc. The preferred equity in ACI Parent Inc. is entitled to receive cumulative preferential dividends at a rate of 11.75% per annum
[24] Investment is held in New Mountain Finance SBIC, L.P.
[25] Investment or a portion of the investment is on non-accrual status. See Note 3. Investments, for details.
[26] Investment or a portion of the investment is on non-accrual status. See Note 3. Investments, for details.
[27] Investment is held in NMF Ancora Holdings, Inc.
[28] Investment is held in NMF Ancora Holdings, Inc.
[29] The Company holds investments in two wholly-owned subsidiaries of Appriss Health Holdings, Inc. The company holds a first lien term loan and a first lien revolver in Appriss Health, LLC, and preferred equity in Appriss Health Intermediate Holdings, Inc. The preferred equity is entitled to receive preferential dividends at a rate of 11.0% per annum.
[30] The Company holds investments in two wholly-owned subsidiaries of Appriss Health Holdings, Inc. The Company holds a first lien term loan and a first lien revolver in Appriss Health, LLC, and preferred equity in Appriss Health Intermediate Holdings, Inc. The preferred equity is entitled to receive preferential dividends at a rate of 11.00% per annum.
[31] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of September 30, 2022, 16.2% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[32] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of December 31, 2021, 18.0% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[33] The Company holds preferred equity in Bach Special Limited (Bach Preference Limited) that is entitled to receive cumulative preferential dividends at a rate of 12.25% per annum payable in additional shares.
[34] The Company holds preferred equity in Bach Special Limited (Bach Preference Limited) that is entitled to receive cumulative preferential dividends at a rate of 12.25% per annum payable in additional shares.
[35] Investment is held in New Mountain Finance SBIC II, L.P.
[36] Investment is held in New Mountain Finance SBIC II, L.P.
[37] The Company holds preferred equity in Dealer Tire Holdings, LLC that is entitled to receive cumulative preferential dividends at a rate of 7.0% per annum.
[38] The Company holds preferred equity in Dealer Tire Holdings, LLC that is entitled to receive cumulative preferential dividends at a rate of 7.00% per annum.
[39] The Company holds investments in two wholly-owned subsidiary of Diamond Parent Holdings Corp. The Company holds three first lien term loans and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc. The preferred equity in Diligent Preferred Issuer Inc. is entitled to receive cumulative preferential dividends at a rate 10.5% per annum.
[40] The Company holds investments in two wholly-owned subsidiary of Diamond Parent Holdings Corp. The Company holds three first lien term loans and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc. The preferred equity in Diligent Preferred Issuer Inc. is entitled to receive cumulative preferential dividends at a rate 10.50% per annum.
[41] The Company holds ordinary shares in TVG-Edmentum Holdings, LLC, and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC. The ordinary shares are entitled to receive cumulative preferential dividends at a rate of 12.0% per annum.
[42] The Company holds ordinary shares in TVG-Edmentum Holdings, LLC, and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC. The ordinary shares are entitled to receive cumulative preferential dividends at a rate of 12.0% per annum.
[43] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and two first lien delayed draws in FS WhiteWater Borrwer, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[44] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and two first lien delayed draws in FS WhiteWater Borrwer, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[45] Investment is held in NMF HB, Inc.
[46] The Company holds preferred equity in HB Wealth Management, LLC that is entitled to receive cumulative preferential dividends at a rate of 4.0% per annum.
[47] Investment is held in NMF HB, Inc
[48] The Company holds preferred equity in HB Wealth Management, LLC that is entitled to receive cumulative preferential dividends at a rate of 4.00% per annum.
[49] Investment is held in NMF TRM, LLC.
[50] Investment is held in NMF QID NGL Holdings, Inc.
[51] The Company holds investments in multiple entities of Haven Midstream Holdings LLC. The Company holds 4.6% of the Class B profits interest in QID NGL, LLC (which at closing represented 97.0% of the ownership in the class B units in QID TRH Holdings, LLC), class A common units of Haven Midstream Holdings LLC, and holds a tranche A first lien term loan, a tranche B first lien term loan and a first lien revolver in Haven Midstream LLC.
[52] The Company holds preferred equity in Knockout Intermediate Holdings I Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Kaseya, Inc., a wholly-owned subsidiary of Knockout Intermediate Holdings I Inc. The preferred equity is entitled to received cumulative preferential dividends at a rate of 11.75% per annum.
[53] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as a Tranche A Term Loan and Tranche B Term Loan in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp.
[54] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as second lien term loans in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp.
[55] Investment is held in New Mountain Net Lease Corporation.
[56] Investment is held in New Mountain Net Lease Corporation.
[57] The Company holds ordinary shares in OA Topco, L.P., and a first lien term loan and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidary of OA Topco, L.P.
[58] The Company holds ordinary shares in OA Topco, L.P., and a first lien term loan and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidary of OA Topco, L.P.
[59] Investment is held in NMF OEC, Inc.
[60] The Company holds preferred equity in OEC Holdco, LLC, and two second lien term loans in OEConnection LLC, a wholly-owned subsidiary of OEC Holdco, LLC. The preferred equity is entitled to receive prefenential dividends of 11.0% per annum.
[61] Investment is held in NMF OEC, Inc.
[62] The Company holds preferred equity in OEC Holdco, LLC, and two second lien term loans in OEConnection LLC, a wholly-owned subsidiary of OEC Holdco, LLC. The preferred equity is entitled to receive prefenential dividends of 11.00% per annum.
[63] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $19,401 as of September 30, 2022. See Note 2. Summary of Significant Accounting Policies, for details.
[64] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $21,422 as of December 31, 2021. See Note 2. Summary of Significant Accounting Policies, for details.
[65] Investment is held in NMF Permian Holdings, LLC.
[66] Investment is held in NMF Permian Holdings, LLC
[67] The Company holds ordinary shares in Pioneer Topco I, L.P., and a first lien term loan and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[68] The Company holds ordinary shares in Pioneer Topco I, L.P., and a first lien term loan and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[69] Investment is held in NMF Pioneer, Inc.
[70] Investment is held in NMF Pioneer, Inc
[71] The Company holds preferred equity in Project Essential Super Parent, Inc. that is entitled to receive cumulative preferential dividends at a rate of L + 9.5% per annum.
[72] The Company holds preferred equity in Project Essential Super Parent, LLC that is entitled to receive cumulative preferential dividends at a rate of L + 9.50% per annum.
[73] Investment is held in NMF TRM, LLC.
[74] Investment is held in NMF QID NGL Holdings, Inc.
[75] The Company holds investments in multiple entities of Tenawa Resource Holdings LLC. The Company holds 4.6% of the Class B profits interest in QID NGL, LLC (which at closing represented 97% of the ownership in the class B units in QID TRH Holdings, LLC), class A common units of Tenawa Resource Holdings LLC, and holds a tranche A first lien term loan, a tranche B first lien term loan and a first lien revolver in Tenawa Resource Management LLC.
[76] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2021, the par value U.S. dollar equivalent of the first lien term loan, drawn first lien term loan and the undrawn first lien term loan is $17,428, $5,103 and $12,884, respectively. See Note 2. Summary of Significant Accounting Policies, for details
[77] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of September 30, 2022, the par value U.S. dollar equivalent of the first lien term loan, and drawn first lien term loan is $14,386, and $12,465, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[78] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to received cumulative preferential dividends at a rate of 20.0% per annum payable in additional shares.
[79] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to received cumulative preferential dividends at a rate of 20.0% per annum payable in additional shares.
[80] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to receive cumulative preferential dividends at a rate of 19.0% per annum payable in additional shares.
[81] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to receive cumulative preferential dividends at a rate of 19.0% per annum payable in additional shares.
[82] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to receive cumulative preferential dividends at a rate of 13.5% per annum payable in additional shares.
[83] The Company holds preferred equity in UniTek Global Services, Inc. that is entitled to receive cumulative preferential dividends at a rate of 13.5% per annum payable in additional shares.