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Transactions with Affiliate Companies - Fair Value Roll Forward (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [1],[2]     $ 2,528,167    
PIK interest (cost) $ 4,001 $ 1,767 10,003 $ 5,500  
Net realized gain (loss)     719 (622)  
Net change in unrealized gain (loss)     15,224 (871)  
Fair value at the ending [1],[3] 3,662,029   3,662,029    
Non-controlled affiliate company investments          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     75,314 [1],[2] 39,188  
Transfers in (out)     10,588 0  
Purchases (cost)     38,622 9,793  
Sales and paydowns (cost)     (1,670) (38)  
PIK interest (cost) 80 0 226 0  
Discount accretion     92 19  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss) 2,383 1,309 (7,672) 2,031  
Fair value at the ending 115,500 [1],[3] 50,993 115,500 [1],[3] 50,993  
Non-controlled affiliate company investments | ClearlyRated Capital (Class A Units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     5,500 0  
Transfers in (out)     0 0  
Purchases (cost)     0 5,500  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     0 0  
Fair value at the ending 5,500 5,500 5,500 5,500  
Non-controlled affiliate company investments | Born To Run, LLC.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     10,588    
Purchases (cost)     1,579    
Sales and paydowns (cost)     (36)    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     (9,111)    
Fair value at the ending 3,020   3,020    
Non-controlled affiliate company investments | Nastel Technologies, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     7,726 7,078  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     7 8  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     278 556  
Fair value at the ending 8,011 7,642 8,011 7,642  
Non-controlled affiliate company investments | Second Avenue S F R Holdings I I L L C          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     3,323 4,755  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     (1,487) 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     37 6  
Fair value at the ending 1,873 4,761 1,873 4,761  
Non-controlled affiliate company investments | S F R Holdco, L L C          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     19,123 13,611  
Transfers in (out)     0 0  
Purchases (cost)     0 3,451  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     (1,023) 1,480  
Fair value at the ending 18,100 18,542 18,100 18,542  
Non-controlled affiliate company investments | SheerTrans Solutions, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     15,252 13,744  
Transfers in (out)     0 0  
Purchases (cost)     4,478 842  
Sales and paydowns (cost)     (34) (38)  
PIK interest (cost)     226 0  
Discount accretion     16 11  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     745 (11)  
Fair value at the ending 20,683 14,548 20,683 14,548  
Non-controlled affiliate company investments | Summit Professional Education, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     26,770    
Sales and paydowns (cost)     (24)    
PIK interest (cost)     0    
Discount accretion     9    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     596    
Fair value at the ending 27,351   27,351    
Non-controlled affiliate company investments | Triad Financial Services, Inc.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     4,803    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     0    
Fair value at the ending 4,803   4,803    
Non-controlled affiliate company investments | Zoodega Landscaping, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     24,390    
Transfers in (out)     0    
Purchases (cost)     992    
Sales and paydowns (cost)     (89)    
PIK interest (cost)     0    
Discount accretion     60    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     806    
Fair value at the ending 26,159   26,159    
Investment, Identifier [Axis]: 300 N. Michigan Mezz, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5] 1,000   1,000    
Investment, Identifier [Axis]: 300 N. Michigan Mezz, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[7],[8],[9]     997    
Investment, Identifier [Axis]: 601 Lafayette Mezz LLC, Junior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11] 0   0    
Investment, Identifier [Axis]: 601 Lafayette Mezz LLC, Junior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11] 0   0    
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     922    
Fair value at the ending [3],[13] $ 894   $ 894    
Number of shares held 385,027 [13]   385,027 [13]   385,027 [12]
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[16] $ 15,581   $ 15,581    
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: 95 Percent Buyer, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[18],[19]     16,067    
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 6,252   6,252    
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     6,248    
Investment, Identifier [Axis]: AMS Parent, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,574   9,574    
Investment, Identifier [Axis]: API Holdings III Corp, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     143    
Investment, Identifier [Axis]: API Holdings III Corp., Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     1,046    
Fair value at the ending [3] 1,304   1,304    
Investment, Identifier [Axis]: API Holdings III Corp., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 153   153    
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     15,000    
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     1,350    
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 14,981   14,981    
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,247   2,247    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[20] 20,200   20,200    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 8,505   8,505    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     19,500    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 235   235    
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 15,429   15,429    
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[21] 3,092   3,092    
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     15,429    
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     289    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     172    
Number of shares held [12],[22]         314,584
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities (Series B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     47    
Number of shares held [12],[22]         45,874
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities (Series C preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     43    
Number of shares held [12],[22]         42,816
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Class A preferred units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held [13],[23] 314,584   314,584    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series B units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held [13],[23] 45,874   45,874    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series C preferred units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held [13],[23] 67,283   67,283    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans (Revolver) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[9],[24]     $ 1,009    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans (Revolver) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     1,205    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     5,950    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[24]     10,212    
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     1,491    
Investment, Identifier [Axis]: Adept AG Holdings, LLC., Senior Secured Loans (Revolver) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[25] $ 895   895    
Investment, Identifier [Axis]: Adept AG Holdings, LLC., Senior Secured Loans (Revolver) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,098   1,098    
Investment, Identifier [Axis]: Adept AG Holdings, LLC., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 5,421   5,421    
Investment, Identifier [Axis]: Adept AG Holdings, LLC., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[25] 9,070   9,070    
Investment, Identifier [Axis]: Adept AG Holdings, LLC., Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,359   1,359    
Investment, Identifier [Axis]: Aduro Advisors, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     8,507    
Investment, Identifier [Axis]: Aduro Advisors, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     944    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Equity Securities (warrant to purchase of the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     144    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     10,142    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     2,548    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     133    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Equity Securities (warrant to purchase of the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     99    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Equity Securities (warrant to purchase the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 73   $ 73    
Warrants to purchase percentage of equity [23] 0.40%   0.40%    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[10],[11] $ 2,727   $ 2,727    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 251   251    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[7],[8]     2,861    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     247    
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     9,980    
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     2,919    
Fair value at the ending [3],[10],[11] 141   141    
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] 9,959   9,959    
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 3,773   3,773    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 3,963   3,963    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[16] 14,651   14,651    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 4,250   4,250    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,948   1,948    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     14,417    
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,190    
Investment, Identifier [Axis]: Appriss Health, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     6,422    
Fair value at the ending [3],[16] 6,378   6,378    
Investment, Identifier [Axis]: Appriss Health, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 22   22    
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 8,239   8,239    
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 20   20    
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] 5,367   5,367    
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 169   169    
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     4,875    
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     282    
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 9,018   9,018    
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11] 0   0    
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10] 43   43    
Investment, Identifier [Axis]: Arcserve Cayman GP LLC (fka Arcstor Midco, LLC) , Equity Securities(Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 294,118   294,118    
Investment, Identifier [Axis]: Arcserve Cayman GP LLC (fka Arcstor Midco, LLC), Equity Securities (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 157,895   157,895    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,442   $ 1,442    
Number of shares held [23] 157,895   157,895    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 2,687   $ 2,687    
Number of shares held [23] 294,118   294,118    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 457   457    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 468   468    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Senior Secured Loans (fka Arcstor Midco, LLC) (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11],[26] 882   882    
Investment, Identifier [Axis]: Arcstor Midco, LLC, Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[27]     5,828    
Investment, Identifier [Axis]: Arcstor Midco, LLC, Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[27]     413    
Investment, Identifier [Axis]: Arcstor Midco, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[27]     413    
Investment, Identifier [Axis]: Argano, LLC, Equity Securities ( common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 568   $ 568    
Number of shares held [13],[23] 62,574   62,574    
Investment, Identifier [Axis]: Argano, LLC, Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 552    
Number of shares held [12],[22]         62,574
Investment, Identifier [Axis]: Argano, LLC, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     28    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     481    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     965    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     1,206    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     8,895    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     3,939    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     684    
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans LLC 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     4,709    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     1,768    
Fair value at the ending [3],[10] $ 1,774   1,774    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15] 13,553   13,553    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     2,498    
Fair value at the ending [3],[15] 2,488   2,488    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     6,777    
Fair value at the ending [3],[4] 6,750   6,750    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     2,927    
Fair value at the ending [3],[16] 2,915   2,915    
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17],[18]     13,610    
Investment, Identifier [Axis]: Ascent Midco, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     690    
Number of shares held [12]         725,806
Investment, Identifier [Axis]: Ascent Midco, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 677   $ 677    
Number of shares held [13] 725,806   725,806    
Investment, Identifier [Axis]: Aspire Bakeries Holdings LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     $ 13,568    
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] $ 10,075   10,075    
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     10,100    
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Avalign Technologies, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     9,158    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Equity Securities. ( Class A preferred shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[26],[28] $ 686   $ 686    
Number of shares held [5],[26],[28] 2,036,442   2,036,442    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Equity Securities. (Class F common shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23],[28] $ 0   $ 0    
Number of shares held [5],[23],[28] 1,521   1,521    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Junior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[26],[28] $ 1,490   $ 1,490    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Junior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[26],[28] 377   377    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[27],[29]     627    
Investment, Identifier [Axis]: Avison Young (USA) Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[27],[29]     1,357    
Investment, Identifier [Axis]: Avison Young (USA) Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[26],[28] 769   769    
Investment, Identifier [Axis]: B2B Industrial Products LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     9,806    
Fair value at the ending [3],[4] 9,678   9,678    
Investment, Identifier [Axis]: B2B Industrial Products LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,269    
Fair value at the ending [3],[4] 2,240   2,240    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     49,000    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     503    
Fair value at the ending [3],[10] 514   514    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[15],[20],[21] 50,149   50,149    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,033   6,033    
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 1,910   1,910    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC) (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     677    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     (677)    
Fair value at the ending $ 0   $ 0    
Number of units held 659   659    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC, Equity Securities) (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 659   659    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     $ 0    
Transfers in (out)     0    
Purchases (cost)     1,080    
Sales and paydowns (cost)     (34)    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     47    
Fair value at the ending $ 1,093   1,093    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     1,611    
Purchases (cost)     81    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     176    
Fair value at the ending 1,868   1,868    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC) 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     8,300    
Purchases (cost)     418    
Sales and paydowns (cost)     (2)    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     (8,657)    
Fair value at the ending 59   59    
Investment, Identifier [Axis]: BTR Opco LLC, Equity Securities (fka Born to Run, LLC) (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11],[26] 1,093   1,093    
Investment, Identifier [Axis]: BTR Opco LLC, Equity Securities (fka Born to Run, LLC) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 1,868   1,868    
Investment, Identifier [Axis]: BTR Opco LLC, Equity Securities (fka Born to Run, LLC) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 59   59    
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 10,013   10,013    
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 736   736    
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 400   400    
Investment, Identifier [Axis]: BTRS Holdings Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     10,000    
Investment, Identifier [Axis]: BTRS Holdings Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     414    
Investment, Identifier [Axis]: BTRS Holdings Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     267    
Investment, Identifier [Axis]: BW 51f, L.P, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 9,000   9,000    
Investment, Identifier [Axis]: BW 51f, L.P, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     9,000    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Equity Securities (commitment to purchase of the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12],[22]     1,765    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Equity Securities (commitment to purchasethe equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] 1,562   1,562    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     29,600    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     1,420    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 28,256   28,256    
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 1,671   1,671    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[20] 15,971   15,971    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     15,680    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Bluesight, Inc, Equity Securities. (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 308   $ 308    
Number of shares held 311   311    
Investment, Identifier [Axis]: Bluesight, Inc, Equity Securities. (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 166,310   166,310    
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[16],[20] $ 30,114   $ 30,114    
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[18]     29,946    
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     286    
Number of shares held         311
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         166,310
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 1,043   1,043    
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[16] 18,875   18,875    
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 3,006   3,006    
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     534    
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     18,685    
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     2,702    
Investment, Identifier [Axis]: Born To Run, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         692,841
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     6,596    
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     898    
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     2,791    
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[16] 2,770   2,770    
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 7,648   7,648    
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     4,705    
Fair value at the ending [3],[4] 4,656   4,656    
Investment, Identifier [Axis]: CE Intermediate, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[16],[21] 38,244   38,244    
Investment, Identifier [Axis]: CE Intermediate, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     38,998    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     5,444    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     10,417    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     8,555    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 8,486   8,486    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 5,400   5,400    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 10,332   10,332    
Investment, Identifier [Axis]: Calabrio, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Calabrio, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 1,175   1,175    
Investment, Identifier [Axis]: Calabrio, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 7,980   7,980    
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     8,050    
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[19]     0    
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     551    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Equity Securities. ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 568   $ 568    
Number of shares held [13],[23] 568,181   568,181    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] $ 4,925   $ 4,925    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     568    
Number of shares held [12],[22]         568,181
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     4,956    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 3,455   $ 3,455    
Number of shares held [13] 3,600   3,600    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Equity Securities ( Class B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held [13],[23] 4,011   4,011    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[20] $ 18,119   $ 18,119    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     390    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     7,950    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,208    
Investment, Identifier [Axis]: Cassavant Holdings, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     13,784    
Investment, Identifier [Axis]: Cdata Software, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[20] 45,146   45,146    
Investment, Identifier [Axis]: Cdata Software, Inc, Senior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Cdata Software, Inc, Senior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,071   1,071    
Investment, Identifier [Axis]: Cdata Software, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     1,561    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[9]     2,647    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     13,635    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     1,394    
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities ( Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 9,528   $ 9,528    
Number of shares held [23] 6,029   6,029    
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities ( Class G units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 60   $ 60    
Number of shares held [23] 63   63    
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     $ 4,451    
Number of shares held         4,451
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         4,451
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities, Class A preferred units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 6,029   $ 6,029    
Number of shares held 6,029   6,029    
Investment, Identifier [Axis]: Central Moloney, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] $ 15,961   $ 15,961    
Investment, Identifier [Axis]: Central Moloney, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[20],[21] 31,408   31,408    
Investment, Identifier [Axis]: Central Moloney, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     35,588    
Investment, Identifier [Axis]: Chess.com, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     162    
Fair value at the ending [3],[13],[23] $ 92   $ 92    
Number of shares held 5 [13],[23]   5 [13],[23]   5 [12],[22]
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[16] $ 12,548   $ 12,548    
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     12,725    
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: ClearlyRated Capital, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning       0  
Transfers in (out)       0  
Purchases (cost)       5,500  
Sales and paydowns (cost)       0  
PIK interest (cost)       0  
Discount accretion       0  
Net realized gain (loss)       0  
Net change in unrealized gain (loss)       0  
Fair value at the ending   $ 5,500   $ 5,500  
Number of units held   5,500,000   5,500,000  
Investment, Identifier [Axis]: ClearlyRated Capital, LLC (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     5,500    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     0    
Fair value at the ending $ 5,500   $ 5,500    
Number of units held 5,500,000   5,500,000    
Investment, Identifier [Axis]: ClearlyRated Capital, LLC, Equity Commitments (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 5,500    
Number of shares held [22]         5,500,000
Investment, Identifier [Axis]: ClearlyRated Capital, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 5,500   $ 5,500    
Number of shares held [13],[23] 5,500,000   5,500,000    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 1,779   $ 1,779    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 4,992   4,992    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[16] 4,980   4,980    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[21] 14,560   14,560    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 20,707   20,707    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     16,982    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     5,040    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     5,027    
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans LLC 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     14,598    
Investment, Identifier [Axis]: Complete Innovations Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5],[25],[28] 8,052   8,052    
Investment, Identifier [Axis]: Complete Innovations Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5],[25],[28] 1,021   1,021    
Investment, Identifier [Axis]: Complete Innovations Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[24],[29]     8,285    
Investment, Identifier [Axis]: Complete Innovations Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[24],[29]     1,051    
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Equity Securities. (Class A Membership Interest)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 2,422   $ 2,422    
Number of shares held [23] 2,250,000   2,250,000    
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 1,730   $ 1,730    
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[16],[20] 36,324   36,324    
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,811   6,811    
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Equity Securities (Class A Membership Interest)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     2,188    
Number of shares held [22]         2,250,000
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     36,126    
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 36,216   36,216    
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,120   1,120    
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 125   125    
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 1,010   1,010    
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 15   15    
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 316   316    
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 841   841    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     17    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     1,000    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     15    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans LLC 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     318    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans LLC 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     834    
Investment, Identifier [Axis]: DS Parent, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[30]     20,040    
Investment, Identifier [Axis]: DS Parent, Inc.., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 19,458   19,458    
Investment, Identifier [Axis]: DataOnline Corp, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[16],[20],[21] 34,766   34,766    
Investment, Identifier [Axis]: DataOnline Corp, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 555   555    
Investment, Identifier [Axis]: DataOnline Corp., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     35,022    
Investment, Identifier [Axis]: DataOnline Corp., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     3,701    
Investment, Identifier [Axis]: Demakes Borrower, LLC , Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 4,846   4,846    
Investment, Identifier [Axis]: Demakes Borrower, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     4,756    
Investment, Identifier [Axis]: Demakes Borrower, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Denali Midco 2, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[21] 12,250   12,250    
Investment, Identifier [Axis]: Denali Midco 2, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 12,361   12,361    
Investment, Identifier [Axis]: Denali Midco 2, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     12,381    
Investment, Identifier [Axis]: Denali Midco 2, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     8,638    
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[21] 6,547   6,547    
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,042   1,042    
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 134   134    
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     6,564    
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     400    
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans LLC(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     134    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Equity Securities. ( Class A-1 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 425   $ 425    
Number of shares held [23] 531,783   531,783    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Equity Securities. ( Class A-2 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 531,783   531,783    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 0   $ 0    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[16] 13,210   13,210    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 10,948   10,948    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     11,008    
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities (Class A-1 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     584    
Number of shares held [22]         531,783
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities (Class A-2 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     88    
Number of shares held [22]         531,783
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     13,281    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Equity Securities. ( Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 574   $ 574    
Number of shares held [23] 573,847   573,847    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] $ 24,538   $ 24,538    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 136   136    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Delayed Draw) 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Equity Securities ( Class A-1 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 768   $ 768    
Number of shares held [23] 652,174   652,174    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Equity Securities (Class A-1 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 735    
Number of shares held [22]         652,174
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     15,003    
Fair value at the ending [3],[16] $ 15,000   15,000    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     2,480    
Fair value at the ending [3],[10],[11] 3,974   3,974    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Dusk Acquisition II Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 27,166   27,166    
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] 20,400   20,400    
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 3,273   3,273    
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     20,000    
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: EOS Finco S.A.R.L, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[14],[31] 5,817   5,817    
Investment, Identifier [Axis]: EOS Finco S.A.R.L., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[17],[29]     6,702    
Investment, Identifier [Axis]: Edustaff, LLC, Equity Securities (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     795    
Fair value at the ending [3],[13],[23] $ 1,011   $ 1,011    
Number of shares held 591 [13],[23]   591 [13],[23]   591 [12],[22]
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] $ 12,664   $ 12,664    
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     12,999    
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Equity Securities. ( preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,238   $ 1,238    
Number of shares held [23] 44,348   44,348    
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 2,271   $ 2,271    
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 370   370    
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 9,853   9,853    
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] 17,079   17,079    
Investment, Identifier [Axis]: Equine Network, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 107   $ 107    
Number of shares held [13],[23] 92   92    
Investment, Identifier [Axis]: Equine Network, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 95    
Number of shares held [12],[22]         92
Investment, Identifier [Axis]: EverService Midco, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[21] $ 54,863   54,863    
Investment, Identifier [Axis]: EverService Midco, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Evolve Biologics Inc, Equity Securities. ( equity commitments)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23] 0   0    
Investment, Identifier [Axis]: Evolve Biologics Inc, Equity Securities. (warrant to purchase the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23] 0   0    
Investment, Identifier [Axis]: Evolve Biologics Inc, Equity Securities. (warrant to purchase the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5],[23] 315   315    
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities (equity commitments)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[22]     0    
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities (warrant)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[22]     146    
Investment, Identifier [Axis]: Evolve Biologics Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 20,417   20,417    
Investment, Identifier [Axis]: Evolve Biologics Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     18,997    
Investment, Identifier [Axis]: Evolve Biologics Inc., Unitranche Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     0    
Investment, Identifier [Axis]: Excelligence Learning Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] 12,139   12,139    
Investment, Identifier [Axis]: Excelligence Learning Corporation, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     2,088    
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     14,360    
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     2,004    
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,295    
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[16],[21] 12,682   12,682    
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     15,600    
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC , Equity Securities (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     0    
Number of shares held [12],[22]         34,944
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC , Equity Securities(Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 24   $ 24    
Number of shares held [13] 35   35    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities ( Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held [13],[23] 34,944   34,944    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     $ 36    
Number of shares held [12]         35
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     0    
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held 164,381 [13],[23]   164,381 [13],[23]   164,381 [12],[22]
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities (Class B preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 29    
Fair value at the ending [3],[13],[23] $ 0   $ 0    
Number of shares held 164 [13],[23]   164 [13],[23]   164 [12],[22]
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 295   $ 295    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,985   9,985    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,122   2,122    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     295    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     9,985    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     2,138    
Investment, Identifier [Axis]: FH BMX Buyer, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,106   9,106    
Investment, Identifier [Axis]: FH BMX Buyer, Inc, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,716   6,716    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 8,100   8,100    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     6,774    
Investment, Identifier [Axis]: Fiasco Enterprises, LLC., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     8,179    
Investment, Identifier [Axis]: First Brands Group, LLC (fka Trico Group, LLC), Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[30]     9,470    
Investment, Identifier [Axis]: First Brands Group, LLC, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[20] 13,750   13,750    
Investment, Identifier [Axis]: Florida East Coast Industries, LLC, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     1,934    
Fair value at the ending [3],[5] 1,797   1,797    
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 841   $ 841    
Number of shares held [13] 906   906    
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities (Class B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 624   $ 624    
Number of shares held [13],[23] 906   906    
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 0   $ 0    
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 21,297   21,297    
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[16],[20] 14,608   14,608    
Investment, Identifier [Axis]: Fortra, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     6,635    
Fair value at the ending [3],[20] 14,215   14,215    
Investment, Identifier [Axis]: Freedom U.S. Acquisition Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 50,108   50,108    
Investment, Identifier [Axis]: Freedom U.S. Acquisition Corporation, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     726    
Fair value at the ending [3],[10] 689   689    
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     5,752    
Fair value at the ending [3] 5,388   5,388    
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     507    
Fair value at the ending [3] 475   475    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 7,288   7,288    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     12,968    
Fair value at the ending [3],[16] 12,870   12,870    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,602    
Fair value at the ending [3],[4] 3,575   3,575    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     10,901    
Fair value at the ending [3],[4] 10,725   10,725    
Investment, Identifier [Axis]: Gargoyle Enterprises, Inc., Unitranche Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[32]     165    
Investment, Identifier [Axis]: Gargoyle Enterprises, Inc., Unitranche Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[33] 717   717    
Investment, Identifier [Axis]: Gibson Brands, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,930   2,930    
Investment, Identifier [Axis]: Golden State Buyer, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 9,584   9,584    
Investment, Identifier [Axis]: Golden State Buyer, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     9,504    
Investment, Identifier [Axis]: HAH Group Holding Company LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,859    
Investment, Identifier [Axis]: HAH Group Holding Company LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     757    
Investment, Identifier [Axis]: HAH Group Holding Company LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     362    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 228   228    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 3,870   3,870    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 4,204   4,204    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     218    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,224    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc., Senior Secured Loans LLC1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     3,888    
Investment, Identifier [Axis]: Hanesbrands Inc. , Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[30]     5,000    
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[21] 30,149   30,149    
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securities ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23],[34] $ 215   $ 215    
Number of shares held [13],[23],[34] 192,908   192,908    
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securities (common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22],[35]     $ 240    
Number of shares held [12],[22],[35]         192,908
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities ( Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,489   $ 1,489    
Number of shares held [23] 1,566   1,566    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities ( Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 1,566   1,566    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 1,521    
Number of shares held [22]         1,500
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         1,500
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 0   0    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 971   971    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] 23,449   23,449    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 6,583   6,583    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,112   1,112    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     1,442    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     23,385    
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     6,633    
Investment, Identifier [Axis]: INH Buyer, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 2,597   2,597    
Investment, Identifier [Axis]: INH Buyer, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     4,893    
Investment, Identifier [Axis]: Idera, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[30]     4,112    
Investment, Identifier [Axis]: Incompass, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     23,400    
Fair value at the ending [3],[4],[14],[15],[21] 23,498   23,498    
Investment, Identifier [Axis]: Independence Buyer, Inc, Equity Securities. (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 57   $ 57    
Number of shares held [23] 169   169    
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[16] $ 10,745   $ 10,745    
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 327   327    
Investment, Identifier [Axis]: Independence Buyer, Inc., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     117    
Number of shares held [22]         169
Investment, Identifier [Axis]: Independence Buyer, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     11,270    
Investment, Identifier [Axis]: Independence Buyer, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: InsideRE, LLC , Senior Secured Loans(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: InsideRE, LLC, Equity Securities ( Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 526   $ 526    
Number of shares held [13],[23] 284,853   284,853    
Investment, Identifier [Axis]: InsideRE, LLC, Equity Securities (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 659    
Number of shares held [12],[22]         284,853
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 0   0    
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     7,353    
Fair value at the ending [3],[14],[16] 7,315   7,315    
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     2,857    
Fair value at the ending [3],[15] 2,842   2,842    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[21] 14,918   14,918    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 4,857   4,857    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     14,700    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Inversiones DP6 (BVI) Numero Dos, Ltd., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[36] 27,252   27,252    
Investment, Identifier [Axis]: Inversiones DP6 (BVI) Numero Dos, Ltd., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[29]     26,041    
Investment, Identifier [Axis]: Izzio Artisan Bakery, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 14,210   14,210    
Investment, Identifier [Axis]: Izzio Artisan Bakery, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Equity Securities (commitment to purchase of the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12],[22],[37]     443    
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Equity Securities (commitment to purchase the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23],[38] 443   443    
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     910    
Fair value at the ending [3],[5],[10],[11] 2,485   2,485    
Investment, Identifier [Axis]: J2 BWA Funding LLC, Equity Securities (profit sharing)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12],[22]     42    
Fair value at the ending [3],[5],[13],[23] 45   45    
Investment, Identifier [Axis]: J2 BWA Funding LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[9]     1,636    
Fair value at the ending [3],[5],[10] 1,770   1,770    
Investment, Identifier [Axis]: Jesse Studio Mezz, LLC, Junior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11] 34,558   34,558    
Investment, Identifier [Axis]: Jumpstart Holdco, Inc, Equity Securities. ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 699   $ 699    
Number of shares held [23] 1,566,667   1,566,667    
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 749    
Number of shares held [22]         1,566,667
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 21,224   21,224    
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     21,497    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC , Senior Secured Loans(fka Spectrum Science Communications, LLC) (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     1,979    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Equity Securities ( equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 376   $ 376    
Warrants to purchase percentage of equity [23] 0.30%   0.30%    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Equity Securities (fka Spectrum Science Communications, LLC) (equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 844    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans (fka Spectrum Science Communications, LLC)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     9,950    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans (fka Spectrum Science Communications, LLC) (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     705    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 4,072   4,072    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,497   9,497    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,893   1,893    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 1,356   1,356    
Investment, Identifier [Axis]: KT Naples UB LLC, Junior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11] 7,950   7,950    
Investment, Identifier [Axis]: Keel Platform, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 7,388   7,388    
Investment, Identifier [Axis]: Keel Platform, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 518   518    
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17],[18]     21,678    
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 592   592    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 2,917   2,917    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 936   936    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,354   1,354    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     650    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,940    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     943    
Investment, Identifier [Axis]: LSCS Holdings, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,939    
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 170   170    
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,421    
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,274    
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 3,416   3,416    
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 3,269   3,269    
Investment, Identifier [Axis]: Lessen Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     7,810    
Investment, Identifier [Axis]: Lessen Inc., Equity Securities (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     1,667    
Number of shares held [22]         128,737
Investment, Identifier [Axis]: Lessen LLC, Equity Securities (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,414   $ 1,414    
Number of shares held [23] 128,737   128,737    
Investment, Identifier [Axis]: Lessen LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 8,452   $ 8,452    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities (Class A shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     82    
Number of shares held [12],[22]         158,730
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities, Class A shares          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 113   $ 113    
Number of shares held [13],[23] 158,730   158,730    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     $ 9,545    
Fair value at the ending [3],[14],[16] $ 9,618   9,618    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     773    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans, (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 1,491   1,491    
Investment, Identifier [Axis]: Light Wave Dental Management, Equity Securities LLC (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     2,880    
Number of shares held [12],[22]         300,218
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 3,037   $ 3,037    
Number of shares held [13],[23] 306,152   306,152    
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 4,084   $ 4,084    
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 533   533    
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[20],[21] 27,129   27,129    
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[18]     27,390    
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     2,757    
Investment, Identifier [Axis]: Liquid Tech Solutions Holdings, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,196    
Investment, Identifier [Axis]: Long Ridge Energy & Power LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     17,150    
Investment, Identifier [Axis]: Loparex Midco B.V. (fka PHM Netherlands Midco B.V.), Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[39] 488   488    
Investment, Identifier [Axis]: Loparex Midco B.V. (fka PHM Netherlands Midco B.V.), Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[39] 149   149    
Investment, Identifier [Axis]: Loparex Midco B.V. , Senior Secured Loans (fka PHM Netherlands Midco B.V.)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[39] 337   337    
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[21] 14,962   14,962    
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 3,227   3,227    
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: MEI Buyer LLC, Equity Securities          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 3,189   $ 3,189    
Number of shares held [23] 2,275   2,275    
Investment, Identifier [Axis]: MEI Buyer LLC, Equity Securities (units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 2,017    
Number of shares held [22]         1,982
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     26,054    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 0   0    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[20] 25,859   25,859    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20],[21] 14,518   14,518    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans, (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans, (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     96    
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities (common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12]     0    
Number of shares held [9],[12]         1,822
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities (warrant)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12]     0    
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Common stock          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] $ 0   $ 0    
Number of shares held [5],[13],[23] 1,822   1,822    
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Warrant          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] $ 0   $ 0    
Investment, Identifier [Axis]: MV Receivables II, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     9,618    
Fair value at the ending [3],[5],[26] 6,353   6,353    
Investment, Identifier [Axis]: Madison Logic Holdings, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 13,562   13,562    
Investment, Identifier [Axis]: Madison Logic Holdings, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 318   318    
Investment, Identifier [Axis]: Madison Logic Holdings, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     13,774    
Investment, Identifier [Axis]: Madison Logic Holdings, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20],[21] 21,806   21,806    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 5,480   5,480    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     21,382    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Matrix Parent, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     1,704    
Investment, Identifier [Axis]: Medallia, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 12,025   12,025    
Investment, Identifier [Axis]: Medallia, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     11,776    
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[21] 44,907   44,907    
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     45,044    
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans LLC(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 1,867   1,867    
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 2,270   2,270    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     1,867    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     5,194    
Investment, Identifier [Axis]: MoneyLion, Inc, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 17,432   17,432    
Investment, Identifier [Axis]: MoneyLion, Inc., Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     17,563    
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 6,878   6,878    
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 280   280    
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     6,930    
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     93    
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[16] 13,296   13,296    
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 245   245    
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     13,081    
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans LLC(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Equity Securities. ( common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 361   $ 361    
Number of shares held [23] 1,364,614   1,364,614    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17],[18]     $ 14,599    
Fair value at the ending [3],[4],[14],[15] $ 13,287   13,287    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     1,361    
Number of shares held [22]         1,364,614
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Nastel Technologies, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     3,500 $ 3,500  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     7 8  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     (29) 10  
Fair value at the ending 3,478 $ 3,518 3,478 3,518  
Investment, Identifier [Axis]: Nastel Technologies, LLC (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     4,226 3,578  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     307 546  
Fair value at the ending $ 4,533 $ 4,124 $ 4,533 $ 4,124  
Number of units held 3,408 3,408 3,408 3,408  
Investment, Identifier [Axis]: Nastel Technologies, LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     $ 0 $ 0  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     0 0  
Fair value at the ending $ 0 $ 0 0 0  
Investment, Identifier [Axis]: Nastel Technologies, LLC, Equity Commitments (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     4,226    
Number of shares held [12],[22]         3,408
Investment, Identifier [Axis]: Nastel Technologies, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 4,533   $ 4,533    
Number of shares held [13],[23] 3,408   3,408    
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] $ 3,478   $ 3,478    
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     3,500    
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Nasuni Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 14,775   14,775    
Investment, Identifier [Axis]: Nasuni Corporation, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities ( Series B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 5,577   $ 5,577    
Number of shares held [13] 369,827   369,827    
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities (Series B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     $ 2,162    
Number of shares held [12]         356,658
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     0    
Fair value at the ending [3],[13],[23] $ 2,818   $ 2,818    
Number of shares held 326,667 [13],[23]   326,667 [13],[23]   326,667 [12],[22]
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     $ 2,722    
Fair value at the ending [3],[10] $ 2,042   2,042    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     12,099    
Fair value at the ending [3],[4] 11,913   11,913    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     14,419    
Fair value at the ending [3],[4] 14,199   14,199    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     15,632    
Fair value at the ending [3] 15,394   15,394    
Investment, Identifier [Axis]: New Engen, Inc, Equity Securities. ( Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1   $ 1    
Number of shares held [23] 5,067   5,067    
Investment, Identifier [Axis]: New Engen, Inc, Equity Securities. (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 493   $ 493    
Number of shares held 417   417    
Investment, Identifier [Axis]: New Engen, Inc., Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 0    
Number of shares held [22]         5,067
Investment, Identifier [Axis]: New Engen, Inc., Equity Securities (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     353    
Number of shares held         417
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     9,358    
Fair value at the ending [3],[14],[16] $ 9,203   9,203    
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     7,902    
Fair value at the ending [3],[14],[16] 7,772   7,772    
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 2,393   2,393    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     353    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     103    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     2,399    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     695    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     1,404    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans LLC 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     2,528    
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Equity Securities ( Class A-2 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 5,257   $ 5,257    
Number of shares held [13],[23] 5,364,700   5,364,700    
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 7,350   $ 7,350    
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: OIS Management Services, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: OIS Management Services, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     10,024    
Investment, Identifier [Axis]: OIS Management Services, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     3,868    
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[29],[40]     32,224    
Fair value at the ending [3],[4],[5],[41],[42] 32,906   32,906    
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[29],[40]     14,971    
Fair value at the ending [3],[5],[41],[42] 15,288   15,288    
Investment, Identifier [Axis]: Off Hours Spirits, Inc. / Hour Barrel, LLC, Unitranche Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[43]     197    
Investment, Identifier [Axis]: Off Hours Spirits, Inc. / Hour Barrel, LLC, Unitranche Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[44] 202   202    
Investment, Identifier [Axis]: Onit, Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 16,800   16,800    
Investment, Identifier [Axis]: Onit, Inc., Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     16,800    
Investment, Identifier [Axis]: Onix Networking Corp, Equity Securities. ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,709   $ 1,709    
Number of shares held [23] 2,000,000   2,000,000    
Investment, Identifier [Axis]: Onix Networking Corp, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] $ 14,888   $ 14,888    
Investment, Identifier [Axis]: Onix Networking Corp, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Onix Networking Corp., Equity Securities (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     2,000    
Number of shares held [22]         2,000,000
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     14,700    
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Optomi, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 498   $ 498    
Number of shares held [13],[23] 278   278    
Investment, Identifier [Axis]: Optomi, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 447    
Number of shares held [12],[22]         278
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] $ 0   0    
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     5,626    
Fair value at the ending [3],[4],[15] 5,583   5,583    
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     13,114    
Fair value at the ending [3],[15],[16] 13,162   13,162    
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 28,944   28,944    
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] 14,192   14,192    
Investment, Identifier [Axis]: Oranje Holdco, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     14,105    
Investment, Identifier [Axis]: Oranje Holdco, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] 13,944   13,944    
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 2,398   2,398    
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: PHM Netherlands Midco B.V., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[29]     555    
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14],[16],[20] 13,958   13,958    
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 4,417   4,417    
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 786   786    
Investment, Identifier [Axis]: Pacific Bells, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     2,902    
Investment, Identifier [Axis]: Panda Acquisition, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     8,239    
Fair value at the ending [3],[4] 7,592   7,592    
Investment, Identifier [Axis]: Park County Holdings, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 45,000   45,000    
Investment, Identifier [Axis]: Park County Holdings, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     44,325    
Investment, Identifier [Axis]: Parkhub, Inc, Equity Securities. ( Series A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 1,501   $ 1,501    
Number of shares held 1,049,936   1,049,936    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 0   $ 0    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans (Delayed Draw) 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11],[45] 0   0    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 16,451   16,451    
Investment, Identifier [Axis]: Parkhub, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[45] 36,293   36,293    
Investment, Identifier [Axis]: Patagonia Holdco LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5] 13,706   13,706    
Investment, Identifier [Axis]: Patagonia Holdco LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[29]     13,520    
Investment, Identifier [Axis]: PetIQ, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     9,434    
Fair value at the ending [3],[4],[5] 9,426   9,426    
Investment, Identifier [Axis]: Polychem Acquisition, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     1,903    
Fair value at the ending [3],[4] 1,664   1,664    
Investment, Identifier [Axis]: Power Stop, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 4,790   4,790    
Investment, Identifier [Axis]: PrecisionX Group, LLC , Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,552   2,552    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 3,152   3,152    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 600   600    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[20],[21] 15,840   15,840    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 8,105   8,105    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,004   6,004    
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,004   6,004    
Investment, Identifier [Axis]: Premier Roofing L.L.C, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 3,050   3,050    
Investment, Identifier [Axis]: Premier Roofing L.L.C, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 1,070   1,070    
Investment, Identifier [Axis]: Premier Roofing L.L.C., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,058    
Investment, Identifier [Axis]: Premier Roofing L.L.C., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     397    
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 11,845   11,845    
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Project Cloud Holdings, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     12,000    
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 6,898   6,898    
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     7,617    
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans LLC(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 546   546    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     910    
Fair value at the ending [3],[21] 910   910    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,550    
Fair value at the ending [3],[16] 4,548   4,548    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,368    
Fair value at the ending [3],[16] 4,366   4,366    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     910    
Fair value at the ending [3],[16] 910   910    
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     910    
Fair value at the ending [3],[16] 910   910    
Investment, Identifier [Axis]: QuarterNorth Energy Inc., Equity Securities (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[22]     593    
Number of shares held [7],[22]         4,376
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities (warrant to purchase the equity) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] 304   304    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities (warrant to purchase the equity) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] 213   213    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities (warrant) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     256    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities (warrant) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     180    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     857    
Fair value at the ending [3],[14],[16] 849   849    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     941    
Fair value at the ending [3],[14] 932   932    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     3,326    
Fair value at the ending [3],[14],[16] 3,297   3,297    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     335    
Fair value at the ending [3],[16] 333   333    
Investment, Identifier [Axis]: RS Acquisition, LLC, Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     1,162    
Fair value at the ending [3],[13],[23] $ 636   $ 636    
Number of shares held 838,077 [13],[23]   838,077 [13],[23]   838,077 [12],[22]
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 840   $ 840    
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 10,172   10,172    
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 9,399   9,399    
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     885    
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     10,620    
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     9,812    
Investment, Identifier [Axis]: Radiology Partners, Inc, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,141   9,141    
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Equity Securities. (Series A-2 preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 2,206   $ 2,206    
Number of shares held 2,206   2,206    
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 7,350   $ 7,350    
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     16,824    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     654    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[16] 16,790   16,790    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,683   1,683    
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 526   526    
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Equity Securities. ( Series A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 302   $ 302    
Number of shares held [23] 369   369    
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15] $ 11,820   $ 11,820    
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Equity Securities (Series A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     466    
Number of shares held [22]         369
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     12,029    
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Recorded Future, Inc, Equity Securities. ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[46] $ 98   $ 98    
Number of shares held [23],[46] 40,243   40,243    
Investment, Identifier [Axis]: Recorded Future, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 40,865   $ 40,865    
Investment, Identifier [Axis]: Recorded Future, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 2,310   2,310    
Investment, Identifier [Axis]: Recorded Future, Inc., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[47]     130    
Number of shares held [22],[47]         40,243
Investment, Identifier [Axis]: Recorded Future, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     4,363    
Fair value at the ending [3],[16] 4,384   4,384    
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Relativity ODA LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     5,262    
Investment, Identifier [Axis]: Relativity ODA LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities ( Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 96   96    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities (Class B common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     $ 0    
Number of shares held [22]         96
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     46    
Fair value at the ending [3] $ 61   $ 61    
Number of shares held 96   96   96
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 316   $ 316    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,114   1,114    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[16] 1,929   1,929    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15] 5,142   5,142    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 863   863    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     211    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[18]     5,136    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans LLC 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     862    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans LLC1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     1,927    
Investment, Identifier [Axis]: Renaissance Holding Corp., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     7,518    
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC, Equity Securities (fka Matrix Parent, Inc.) ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[23] $ 462   $ 462    
Number of shares held [4],[23] 37,185   37,185    
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC, Senior Secured Loans (fka Matrix Parent, Inc.)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[26] $ 913   $ 913    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Equity Securities ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[23] $ 885   $ 885    
Number of shares held [4],[23] 50,029   50,029    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 3,377   $ 3,377    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 560   560    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,992    
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Equity Securities ( Series A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] $ 1,329   $ 1,329    
Number of shares held [5],[13],[23] 446,794   446,794    
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Equity Securities (warrant to purchase up the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] $ 621   $ 621    
Investment, Identifier [Axis]: Respida Software Equity CI LP , Equity Securities(Series B Preferred Units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 5,014   $ 5,014    
Number of shares held [13],[23] 5,000,000   5,000,000    
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 2,887   $ 2,887    
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,861    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18]     8,796    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     4,914    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 5,090   5,090    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     915    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15] 9,111   9,111    
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 10,232   10,232    
Investment, Identifier [Axis]: SCP Intermediate Holdings, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     3,000    
Fair value at the ending [3],[5],[14] 2,948   2,948    
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     21,021    
Fair value at the ending [3],[4],[14],[20],[21] 21,289   21,289    
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Fair value at the ending [3],[10],[11] 2,828   2,828    
Investment, Identifier [Axis]: SFR Holdco, LLC (Delayed draw junior secured loan)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     4,917 2,316  
Transfers in (out)     0 0  
Purchases (cost)     0 2,071  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     (352) 381  
Fair value at the ending 4,565 4,768 4,565 4,768  
Investment, Identifier [Axis]: SFR Holdco, LLC (Junior secured loan)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     6,557 5,850  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     (1,076) 508  
Fair value at the ending 5,481 6,358 5,481 6,358  
Investment, Identifier [Axis]: SFR Holdco, LLC (equity commitments 1)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning       3,900  
Transfers in (out)       0  
Purchases (cost)       0  
Sales and paydowns (cost)       0  
PIK interest (cost)       0  
Discount accretion       0  
Net realized gain (loss)       0  
Net change in unrealized gain (loss)       338  
Fair value at the ending   $ 4,238   $ 4,238  
Warrants to purchase percentage of equity   13.90%   13.90%  
Investment, Identifier [Axis]: SFR Holdco, LLC (equity commitments 2)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning       $ 1,545  
Transfers in (out)       0  
Purchases (cost)       1,380  
Sales and paydowns (cost)       0  
PIK interest (cost)       0  
Discount accretion       0  
Net realized gain (loss)       0  
Net change in unrealized gain (loss)       253  
Fair value at the ending   $ 3,178   $ 3,178  
Warrants to purchase percentage of equity   10.50%   10.50%  
Investment, Identifier [Axis]: SFR Holdco, LLC (equity commitments) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     4,371    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     231    
Fair value at the ending $ 4,602   $ 4,602    
Warrants to purchase percentage of equity 13.90%   13.90%    
Investment, Identifier [Axis]: SFR Holdco, LLC (equity commitments) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     $ 3,278    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     174    
Fair value at the ending $ 3,452   $ 3,452    
Warrants to purchase percentage of equity 10.50%   10.50%    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Commitments (equity commitments) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[22]     $ 4,371    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Commitments (equity commitments) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[22]     3,278    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities ( equity commitments) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23] $ 4,602   4,602    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities ( equity commitments) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23] 3,452   3,452    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 5,481   5,481    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 4,565   4,565    
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans, 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     6,557    
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans, 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     4,917    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     47    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     1,915    
Fair value at the ending [3] 5,700   5,700    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     1,000    
Fair value at the ending [3],[15],[16] 1,900   1,900    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     1,729    
Fair value at the ending [3],[15],[16] 992   992    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     1,014    
Fair value at the ending [3],[15],[16] 1,716   1,716    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     990    
Fair value at the ending [3],[15],[16] 1,006   1,006    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 6          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[18],[19]     2,203    
Fair value at the ending [3],[15],[16] 982   982    
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 7          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[15],[16] 2,186   2,186    
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     205    
Fair value at the ending [3] 728   728    
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     136    
Fair value at the ending [3],[4] 144   144    
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     3,355    
Fair value at the ending [3],[4],[16] 3,548   3,548    
Investment, Identifier [Axis]: STATS Intermediate Holdings, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 13,970   13,970    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class A interests          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 171,429   171,429    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AA units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 7,022   7,022    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AAA units          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 8,322   8,322    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     $ 1,266    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     4,518    
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     255    
Investment, Identifier [Axis]: Sabrosura Foods, LLC, Equity Securities (Class A interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         171,429
Investment, Identifier [Axis]: Sabrosura Foods, LLC, Equity Securities (Class AA units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         7,022
Investment, Identifier [Axis]: Sabrosura Foods, LLC, Equity Securities (Class AAA units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Number of shares held [22]         8,322
Investment, Identifier [Axis]: Sandvine Corporation, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[23] $ 0   $ 0    
Number of shares held [4],[23] 23,212   23,212    
Investment, Identifier [Axis]: Sandvine Corporation, Equity Securities ( Class B units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[23] $ 0   $ 0    
Number of shares held [4],[23] 37,522   37,522    
Investment, Identifier [Axis]: Sandvine Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[26] $ 211   $ 211    
Investment, Identifier [Axis]: Sandvine Corporation, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     926    
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     3,323 $ 4,755  
Transfers in (out)     0 0  
Purchases (cost)     0 0  
Sales and paydowns (cost)     (1,487) 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     37 6  
Fair value at the ending 1,873 $ 4,761 1,873 4,761  
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[9]     3,323    
Fair value at the ending [3],[5],[10] 1,873   1,873    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[20] 43,877   43,877    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[20] 13,622   13,622    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[20] 13,458   13,458    
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 967   967    
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 3,693   3,693    
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 8,379   8,379    
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 1,934   1,934    
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,481   2,481    
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     1,979    
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     967    
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     3,693    
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     8,379    
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     1,934    
Investment, Identifier [Axis]: Seran BioScience, LLC, Equity Securities ( common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 676   $ 676    
Number of shares held [23] 26,666   26,666    
Investment, Identifier [Axis]: Seran BioScience, LLC, Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 604    
Number of shares held [12],[22]         26,666
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     267    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] $ 0   0    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     1,945    
Fair value at the ending [3],[14],[16] 1,928   1,928    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     2,206    
Fair value at the ending [3],[20],[21] 1,151   1,151    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 2,187   2,187    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning       5,101  
Transfers in (out)       0  
Purchases (cost)       0  
Sales and paydowns (cost)       (38)  
PIK interest (cost)       0  
Discount accretion       11  
Net realized gain (loss)       0  
Net change in unrealized gain (loss)       (11)  
Fair value at the ending   5,063   5,063  
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     959 0  
Transfers in (out)     0 0  
Purchases (cost)     0 293  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     29 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     0 0  
Fair value at the ending 988 293 988 293  
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     9,192 8,643  
Transfers in (out)     0 0  
Purchases (cost)     3,042 549  
Sales and paydowns (cost)     0 0  
PIK interest (cost)     0 0  
Discount accretion     0 0  
Net realized gain (loss)     0 0  
Net change in unrealized gain (loss)     734 0  
Fair value at the ending $ 12,968 $ 9,192 $ 12,968 $ 9,192  
Number of shares held 12,233,889 9,191,624 12,233,889 9,191,624  
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Equity Commitments (preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 9,192    
Number of shares held [12],[22]         9,191,624
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Equity Securities ( preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 12,968   $ 12,968    
Number of shares held [13],[23] 12,233,889   12,233,889    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     $ 5,101    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     959    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 988   988    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 5,233   5,233    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 1,494   1,494    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC-1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     5,101    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     (26)    
PIK interest (cost)     159    
Discount accretion     13    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     (14)    
Fair value at the ending 5,233   5,233    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC-2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     1,436    
Sales and paydowns (cost)     (8)    
PIK interest (cost)     38    
Discount accretion     3    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     25    
Fair value at the ending 1,494   1,494    
Investment, Identifier [Axis]: Signal 88, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 23,500   23,500    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,892   1,892    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans. (Revolver) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans. (Revolver) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[17]     9,733    
Fair value at the ending [3],[4],[14] 9,762   9,762    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     13,891    
Fair value at the ending [3] 13,934   13,934    
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Skillsoft Corp, Equity Securities. ( Class A shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5],[23],[48] $ 20   $ 20    
Number of shares held [4],[5],[23],[48] 1,308   1,308    
Investment, Identifier [Axis]: Skillsoft Corp., Equity Securities (Class A shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9],[22],[49]     $ 23    
Number of shares held [7],[9],[22],[49]         1,308
Investment, Identifier [Axis]: Slater Slater Schulman LLP, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 21,209   21,209    
Investment, Identifier [Axis]: Slater Slater Schulman LLP, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     14,001    
Investment, Identifier [Axis]: Snap One Holdings Corp., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     5,883    
Investment, Identifier [Axis]: Sound Inpatient Physicians, Inc, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[26] 2,169   2,169    
Investment, Identifier [Axis]: Sound Inpatient Physicians, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[27]     935    
Investment, Identifier [Axis]: SoundHound AI, Inc, Equity Securities. (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23],[48],[50] $ 1,829   $ 1,829    
Number of shares held [5],[23],[48],[50] 392,523   392,523    
Investment, Identifier [Axis]: SoundHound AI, Inc, Senior Secured Loans. (fka Amelia Holding II, LLC)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] $ 5,293   $ 5,293    
Investment, Identifier [Axis]: Sparq Holdings, In, Senior Secured Loansc. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Sparq Holdings, Inc, Equity Securities. (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 678   $ 678    
Number of shares held [23] 600,000   600,000    
Investment, Identifier [Axis]: Sparq Holdings, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 0   $ 0    
Investment, Identifier [Axis]: Sparq Holdings, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 1,992   1,992    
Investment, Identifier [Axis]: Sparq Holdings, Inc, Senior Secured Loans. 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 446   446    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Equity Securities (common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     624    
Number of shares held [22]         600,000
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     2,023    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 436   436    
Investment, Identifier [Axis]: Specialty Manufacturing Buyer, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     15,960    
Investment, Identifier [Axis]: Specialty Manufacturing Buyer, LLC., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Specialty Manufacturing Buyer, LLC., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Spherix Global Inc, Equity Securities. ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 333   333    
Investment, Identifier [Axis]: Spherix Global Inc, Equity Securities. (Class A-2 units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 13   $ 13    
Number of shares held [23] 42   42    
Investment, Identifier [Axis]: Spherix Global Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] $ 2,766   $ 2,766    
Investment, Identifier [Axis]: Spherix Global Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Spherix Global Inc., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     143    
Number of shares held [22]         333
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     4,289    
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 4,900   4,900    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,939   1,939    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     4,938    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     402    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     284    
Fair value at the ending [3],[10] 2,921   2,921    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     383    
Fair value at the ending [3],[15] 441   441    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     2,989    
Fair value at the ending [3],[16] 27,375   27,375    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     501    
Fair value at the ending [3],[16] 4,253   4,253    
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities ( Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 139   $ 139    
Number of shares held [13],[23] 640,000   640,000    
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities ( Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13] $ 640   $ 640    
Number of shares held [13] 640,000   640,000    
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities (Class A common units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12],[22]     $ 151    
Number of shares held [12],[22]         640,000
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities (Class A preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[12]     640    
Number of shares held [12]         640,000
Investment, Identifier [Axis]: StormTrap, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     6,437    
Investment, Identifier [Axis]: StormTrap, LLC, Unitranche Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 1,521   1,521    
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 412   412    
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 359   359    
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     1,941    
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     526    
Investment, Identifier [Axis]: Summit Professional Education, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     10,094    
Sales and paydowns (cost)     (24)    
PIK interest (cost)     0    
Discount accretion     9    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     265    
Fair value at the ending 10,344   10,344    
Investment, Identifier [Axis]: Summit Professional Education, LLC (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     16,676    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     331    
Fair value at the ending $ 17,007   $ 17,007    
Number of shares held 16,676   16,676    
Investment, Identifier [Axis]: Summit Professional Education, LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     $ 0    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     0    
Fair value at the ending $ 0   0    
Investment, Identifier [Axis]: Summit Professional Education, LLC, Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[13],[23] $ 17,007   $ 17,007    
Number of shares held [13],[23] 16,676   16,676    
Investment, Identifier [Axis]: Summit Professional Education, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] $ 10,344   $ 10,344    
Investment, Identifier [Axis]: Summit Professional Education, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     248    
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     4,142    
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     166    
Investment, Identifier [Axis]: Sundance Group Holdings, Inc., Senior Secured Loans LLC3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     1,242    
Investment, Identifier [Axis]: Sundy Village West Mezz Borrower, LLC, Junior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     23,870    
Fair value at the ending [3],[5],[10],[11] 27,814   27,814    
Investment, Identifier [Axis]: Sundy Village West Mezz Borrower, LLC, Junior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     2,982    
Fair value at the ending [3],[5],[10],[11] 3,468   3,468    
Investment, Identifier [Axis]: Sunstates Security, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 19,700   19,700    
Investment, Identifier [Axis]: Sunstates Security, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     4,377    
Fair value at the ending [3],[14],[16] 4,354   4,354    
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     5,344    
Fair value at the ending [3],[14] 5,316   5,316    
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     4,796    
Fair value at the ending [3],[14],[16] 4,771   4,771    
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     4,488    
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 4,439   4,439    
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 1,475   1,475    
Investment, Identifier [Axis]: TIC Bidco Limited, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[45],[51] 15,292   15,292    
Investment, Identifier [Axis]: Talos Energy Inc, Equity Securities. ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[5],[23],[48] $ 126   $ 126    
Number of shares held [4],[5],[23],[48] 12,138   12,138    
Investment, Identifier [Axis]: Teneo Holdings LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] $ 7,006   $ 7,006    
Investment, Identifier [Axis]: Teneo Holdings LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     2,979    
Investment, Identifier [Axis]: Tenneco Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[30]     6,290    
Investment, Identifier [Axis]: Tenneco Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] 9,519   9,519    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[15],[21] 10,468   10,468    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     10,421    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans(Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: The GEO Group, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     10,052    
Investment, Identifier [Axis]: The Hertz Corporation, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 7,452   7,452    
Investment, Identifier [Axis]: The Hertz Corporation, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 1,452   1,452    
Investment, Identifier [Axis]: The Hertz Corporation, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[30]     4,975    
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[19]     2,934    
Fair value at the ending [3],[4],[16] 2,904   2,904    
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     3    
Fair value at the ending [3] 3   3    
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 3,123   3,123    
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 28,755   28,755    
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 7,774   7,774    
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 2,162,506   2,162,506    
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,461   $ 1,461    
Number of shares held [23] 31,764   31,764    
Investment, Identifier [Axis]: Thrasio, LLC, Junior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] $ 1,560   $ 1,560    
Investment, Identifier [Axis]: Thrasio, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19],[27]     2,816    
Fair value at the ending [3],[26] 556   556    
Investment, Identifier [Axis]: Thryv, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 8,635   8,635    
Investment, Identifier [Axis]: Thryv, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     6,600    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 9,850   9,850    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 713   713    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     9,800    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     444    
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Touchmath Acquisition LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 10,139   10,139    
Investment, Identifier [Axis]: Touchmath Acquisition LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Transact Holdings Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     712    
Investment, Identifier [Axis]: Transnetwork LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[30]     11,970    
Fair value at the ending [3],[20] 15,957   15,957    
Investment, Identifier [Axis]: Triad Financial Services, Inc, Equity Securities. (equity commitment)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23],[52] 4,803   4,803    
Total equity investment [5],[23],[52] 41,855   41,855    
Amount of total commitment [5],[23],[52]     4,803    
Investment, Identifier [Axis]: Triad Financial Services, Inc. (equity commitment)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     4,803    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     0    
Fair value at the ending 4,803   4,803    
Investment, Identifier [Axis]: Triad Financial Services, Inc., Equity Commitments (total commitment)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Total equity investment 41,855   41,855    
Amount of total commitment     4,803    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     384    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 2,604   2,604    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     56    
Fair value at the ending [3],[10] 174   174    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     5,418    
Fair value at the ending [3] 3,612   3,612    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     4,334    
Fair value at the ending [3],[14],[15],[16],[21] 11,759   11,759    
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     1,080    
Fair value at the ending [3] 370   370    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,886   9,886    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 11   11    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     126    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,339    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     620    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     495    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     550    
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans 6          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     705    
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 20,633   20,633    
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,500   1,500    
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Unanet, Inc, Equity Securities. (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 2,594   $ 2,594    
Number of shares held [23] 1,621,053   1,621,053    
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[16] $ 22,000   $ 22,000    
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 2,837   2,837    
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 116   116    
Investment, Identifier [Axis]: Unanet, Inc., Equity Securities (common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     2,237    
Number of shares held [22]         1,621,053
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     22,000    
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     2,837    
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: VB E1, LLC, Unitranche Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,000    
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 18,041   18,041    
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 1,089   1,089    
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[28] 25,340   25,340    
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11],[28] 0   0    
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[28] 0   0    
Investment, Identifier [Axis]: Verdantas LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     3,966    
Investment, Identifier [Axis]: Verdantas LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     0    
Investment, Identifier [Axis]: Vero Biotech Inc, Equity Securities. (warrant to purchasethe equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 180   $ 180    
Warrants to purchase percentage of equity [23] 2.30%   2.30%    
Investment, Identifier [Axis]: Vero Biotech Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 28,235   $ 28,235    
Investment, Identifier [Axis]: Vero Biotech Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     29,700    
Investment, Identifier [Axis]: Vero Biotech Inc., Equity Securities (warrant to purchase of the equity)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     0    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15] 10,000   10,000    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 500   500    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18]     10,000    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     500    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Viad Corp, Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7],[9]     4,038    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[53]     0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[53]     0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[53]     0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[53]     0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     348    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     219    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     494    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     149    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.),Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     453    
Number of shares held [22]         1,110,000
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Equity Securities ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 0   $ 0    
Number of shares held [23] 1,110,000   1,110,000    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[54] $ 0   $ 0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[54] 0   0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[54] 0   0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[54] 0   0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 386   386    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 6          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 117   117    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 7          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 203   203    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 8          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 0   0    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[26] 414   414    
Investment, Identifier [Axis]: Volt Bidco, Inc, Equity Securities. ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 1,091   $ 1,091    
Number of shares held [23] 878   878    
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] $ 366   $ 366    
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 9,136   9,136    
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[20] 1,717   1,717    
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 987   987    
Investment, Identifier [Axis]: Volt Bidco, Inc., Equity Securities (shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22]     1,144    
Number of shares held [22]         878
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8]     304    
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     268    
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     9,136    
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     1,717    
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     2,199    
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     107    
Investment, Identifier [Axis]: WPEngine, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[15],[16] 16,649   16,649    
Investment, Identifier [Axis]: WPEngine, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: WPEngine, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[18],[19]     16,550    
Investment, Identifier [Axis]: WPEngine, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: Watchguard Technologies, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] 20,562   20,562    
Investment, Identifier [Axis]: Watchguard Technologies, Inc., Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     20,113    
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 9,850   9,850    
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] 5,000   5,000    
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 149   149    
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     5,000    
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     124    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 2,570   2,570    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 20,558   20,558    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 257   257    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] 744   744    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     2,630    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     21,040    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     263    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Equity Securities ( preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[13],[23] $ 4,273   $ 4,273    
Number of shares held [5],[13],[23] 2,992   2,992    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Equity Securities (preferred units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[12]     $ 3,007    
Number of shares held [9],[12]         2,992
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9]     1,895    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     9,493    
Fair value at the ending [3],[5] $ 450   450    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9]     1,642    
Fair value at the ending [3],[5] 9,932   9,932    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 1,718   1,718    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 4          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 3,083   3,083    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 5          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5] 2,113   2,113    
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Equity Securities. ( Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3] $ 342   $ 342    
Number of shares held 65,104   65,104    
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] $ 0   $ 0    
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14],[16] 5,587   5,587    
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[14] 2,221   2,221    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Equity Securities (Class A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2]     296    
Number of shares held         65,104
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17],[19]     5,844    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[17]     2,326    
Investment, Identifier [Axis]: Xpress Wellness, LLC, Equity Securities ( Series A units)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 18,662   $ 18,662    
Number of shares held [23] 18,310   18,310    
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4],[14] $ 40,100   $ 40,100    
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10],[11] 0   0    
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 3,692   3,692    
Investment, Identifier [Axis]: ZI Intermediate II, Inc, Equity Securities. ( shares of common stock)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23] $ 3,794   $ 3,794    
Number of shares held [23] 3,790   3,790    
Investment, Identifier [Axis]: ZI Intermediate II, Inc, Senior Secured Loans.          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 57,050   $ 57,050    
Investment, Identifier [Axis]: ZI Intermediate II, Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[10] 0   0    
Investment, Identifier [Axis]: Zodega Landscaping, LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     11,969    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     (89)    
PIK interest (cost)     0    
Discount accretion     60    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     516    
Fair value at the ending 12,456   12,456    
Investment, Identifier [Axis]: Zodega Landscaping, LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     0    
Transfers in (out)     0    
Purchases (cost)     992    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     0    
Fair value at the ending 992   992    
Investment, Identifier [Axis]: Zodega Landscaping, LLC (preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning     12,421    
Transfers in (out)     0    
Purchases (cost)     0    
Sales and paydowns (cost)     0    
PIK interest (cost)     0    
Discount accretion     0    
Net realized gain (loss)     0    
Net change in unrealized gain (loss)     290    
Fair value at the ending $ 12,711   $ 12,711    
Number of units held 124,206   124,206    
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Equity Commitments (preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[22],[55]     $ 12,421    
Number of shares held [22],[55]         124,206
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Equity Securities (preferred interests)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[23],[56] $ 12,711   $ 12,711    
Number of shares held [23],[56] 124,206   124,206    
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[4] $ 12,456   $ 12,456    
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[7]     11,969    
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Senior Secured Loans (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6]     0    
Fair value at the ending [3],[10] 992   992    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Equity Securities. ( preferred shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[23],[28] $ 722   $ 722    
Number of shares held [5],[23],[28] 96,603   96,603    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[11],[28] $ 1,515   $ 1,515    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[10],[28] 0   0    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[16],[28] 16,535   16,535    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[16],[28] 1,291   1,291    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 3          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[5],[28] 2,063   2,063    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Equity Securities (preferred shares)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[22],[29]     761    
Number of shares held [9],[22],[29]         96,603
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans LLC (Delayed Draw)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[8],[9],[29]     1,677    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans LLC (Revolver)          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[6],[9],[29]     0    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans LLC 1          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[19],[29]     16,535    
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans LLC 2          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[9],[19],[29]     1,291    
Investment, Identifier [Axis]: iCIMS, Inc, Senior Secured Loans          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the ending [3],[16] $ 8,000   8,000    
Investment, Identifier [Axis]: iCIMS, Inc., Senior Secured Loans LLC          
Transactions with Affiliated Companies, Fair value Roll Forward          
Fair value at the beginning [2],[19]     $ 8,030    
[1] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940, as amended, (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[2] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements.)
[3] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).
[4] All or a portion of this security was held in MC Income Plus Financing SPV LLC (the “SPV”) as collateral for the Company’s secured revolving credit facility (the “SPV Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[5] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of September 30, 2024, non-qualifying assets totaled 12.5% of the Company’s total assets.
[6] All or a portion of this commitment was unfunded at December 31, 2023. As such, interest is earned only on the funded portion of this commitment.
[7] All or a portion of this security was held in MC Income Plus Financing SPV LLC (the “SPV”) as collateral for the Company's secured revolving credit facility (the “SPV Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[8] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings by the Company.
[9] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2023, non-qualifying assets totaled 13.9% of the Company’s total assets.
[10] All or a portion of this commitment was unfunded at September 30, 2024. As such, interest is earned only on the funded portion of this commitment.
[11] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings by the Company.
[12] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[13] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[14] All or a portion of this security was held in MC Income Plus Financing SPV II LLC (the “SPV II”) as collateral for the Company’s senior secured term credit facility (the “SPV II Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[15] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding II, LLC (the “2023 Issuer”) as collateral for the Company’s asset-backed securitization (the “2023 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[16] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding, LLC (the “2022 Issuer”) as collateral for the Company’s asset-backed securitization (the “2022 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[17] All or a portion of this security was held in MC Income Plus Financing SPV II LLC (the “SPV II”) as collateral for the Company's senior secured term credit facility (the “SPV II Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[18] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding II, LLC (the “2023 Issuer”) as collateral for the Company's asset-backed securitization (the “2023 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[19] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding, LLC (the “2022 Issuer”) as collateral for the Company's asset-backed securitization (the “2022 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[20] All or a portion of this security was held in MC Income Plus Financing SPV IV LLC (the “SPV IV”) as collateral for the Company’s secured revolving credit facility (the “SPV IV Credit Facility”) with Capital One, National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[21] All or a portion of this security was held in MC Income Plus Financing SPV III LLC (the “SPV III”) as collateral for the Company’s secured revolving credit facility (the “SPV III Credit Facility”) with Goldman Sachs Bank USA. (See Note 7 in the accompanying notes to the consolidated financial statements).
[22] Represents a non-income producing security.
[23] Represents a non-income producing security.
[24] This loan is denominated in Canadian dollars and is translated into U.S. dollars as of the valuation date.
[25] This loan is denominated in Canadian dollars and is translated into U.S. dollars as of the valuation date.
[26] This position was on non-accrual status as of September 30, 2024, meaning that the Company has ceased accruing interest income on the position. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s accounting policies.
[27] This position was on non-accrual status as of December 31, 2023, meaning that the Company has ceased accruing interest income on the position. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s accounting policies.
[28] The headquarters of this portfolio company is located in Canada.
[29] This is an international company.
[30] Investment position or portion thereof unsettled as of December 31, 2023.
[31] The headquarters of this portfolio company is located in France.
[32] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 18.05%.
[33] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 18.1%.
[34] As of September 30, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $34
[35] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $34.
[36] The headquarters of this portfolio company is located in Costa Rica.
[37] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $697.
[38] As of September 30, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $697.
[39] The headquarters of this portfolio company is located in Netherlands.
[40] This loan is denominated in Australian dollars and is translated into U.S. dollars as of the valuation date.
[41] The headquarters of this portfolio company is located in Australia.
[42] This loan is denominated in Australian dollars and is translated into U.S. dollars as of the valuation date.
[43] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 15.71%.
[44] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 15.1%.
[45] This loan is denominated in Great Britain Pounds and is translated into U.S. dollars as of the valuation date.
[46] As of September 30, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $8.
[47] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $8.
[48] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[49] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[50] The Company has recorded a contingent liability related to this equity investment. The contingent liability represents 143,302 of the 392,523 shares held as of September 30, 2024. See Note 11 in the accompanying notes to the consolidated financial statements for additional information.
[51] The headquarters of this portfolio company is located in United Kingdom.
[52] As of September 30, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $37,052 for a total commitment of $41,855.
[53] This is a demand note with no stated maturity.
[54] This is a demand note with no stated maturity.
[55] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $1,468.
[56] As of September 30, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $1,468.