Quarterly report pursuant to Section 13 or 15(d)

Investments - Schedule of Realized Gains and Losses and Changes in Unrealized Appreciation and Depreciation on Control and Affiliate investments (Details)

v3.22.2.2
Investments - Schedule of Realized Gains and Losses and Changes in Unrealized Appreciation and Depreciation on Control and Affiliate investments (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) $ 2,825,738   $ 2,825,738   $ 2,434,522  
Interest Income 81,408 $ 63,312 212,391 $ 188,400    
Fee Income 2,821 6,881 9,110 20,111    
Total net change in unrealized appreciation (depreciation) (2,089) (35,651) (87,147) 46,231    
Total net realized gain (loss) 5,289 21,111 775 14,599    
Investment, Affiliated Issuer [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) 80,325 [1] 75,547 80,325 [1] 75,547 82,962 [2] $ 65,740
Total net change in unrealized appreciation (depreciation)     7,700 56,893    
Total net realized gain (loss)     1,758 (62,143)    
Investment, Affiliated Issuer [Member] | Control & Affiliate Investments            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 80,325 75,547 80,325 75,547    
Interest Income [3] 1,262 1,073 4,644 2,903    
Fee Income [3] 18 20 51 43    
Total net change in unrealized appreciation (depreciation) [3] 2,060 (3,892) 7,700 56,893    
Total net realized gain (loss) [3] (2,014) 0 1,758 (62,143)    
Investment, Affiliated Issuer, Controlled [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) 80,325 [1] 65,835 80,325 [1] 65,835 73,504 [2] 57,400
Interest Income 1,181 1,072 3,440 2,900    
Fee Income 18 20 51 43    
Total net change in unrealized appreciation (depreciation) (2,571) (3,774) 3,611 (7,327)    
Total net realized gain (loss)     0 0    
Investment, Affiliated Issuer, Controlled [Member] | Control Investments            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 80,325 65,835 80,325 65,835    
Interest Income [3] 1,181 1,072 3,440 2,900    
Fee Income [3] 18 20 51 43    
Total net change in unrealized appreciation (depreciation) [3] (2,571) (3,774) 3,611 (7,327)    
Total net realized gain (loss) [3] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Coronado Aesthetics, LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 400   400      
Interest Income [3] 0   0      
Fee Income [3] 0   0      
Total net change in unrealized appreciation (depreciation) [3] (22)   (165)      
Total net realized gain (loss) [3] 0   0      
Investment, Affiliated Issuer, Controlled [Member] | Gibraltar Business Capital, LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 37,662 40,737 37,662 40,737    
Interest Income [3] 853 853 2,531 2,325    
Fee Income [3] 18 15 51 38    
Total net change in unrealized appreciation (depreciation) [3] (1,423) (3,475) (6,228) (17,690)    
Total net realized gain (loss) [3] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Hercules Adviser LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 33,945 16,804 33,945 16,804    
Interest Income [3] 154 45 393 59    
Fee Income [3] 0 0 0 0    
Total net change in unrealized appreciation (depreciation) [3] (1,236) (219) 9,955 10,669    
Total net realized gain (loss) [3] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Tectura Corporation            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 8,318 8,294 8,318 8,294    
Interest Income [3] 174 174 516 516    
Fee Income [3] 0 5 0 5    
Total net change in unrealized appreciation (depreciation) [3] 110 (80) 49 (306)    
Total net realized gain (loss) [3] 0 0 0 0    
Investment, Affiliated Issuer, Noncontrolled [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) 0 9,712 0 9,712 9,458 [2] $ 8,340
Interest Income 81 1 1,204 3    
Total net change in unrealized appreciation (depreciation) 4,631 (118) 4,089 64,220    
Total net realized gain (loss) (2,014) 0 1,758 (62,143)    
Investment, Affiliated Issuer, Noncontrolled [Member] | Affiliate Investments            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 0 9,712 0 9,712    
Interest Income [3] 81 1 1,204 3    
Fee Income [3] 0 0 0 0    
Total net change in unrealized appreciation (depreciation) [3] 4,631 (118) 4,089 64,220    
Total net realized gain (loss) [3] (2,014) 0 1,758 (62,143)    
Investment, Affiliated Issuer, Noncontrolled [Member] | Black Crow AI, Inc. affiliates            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3] 0 [4] 1,243 0 [4] 1,243    
Interest Income [3] 0 [4] 0 0 [4] 0    
Fee Income [3] 0 [4] 0 0 [4] 0    
Total net change in unrealized appreciation (depreciation) [3] 0 [4] (66) (120) [4] 2,028    
Total net realized gain (loss) [3] 0 [4] 0 3,772 [4] 0    
Investment, Affiliated Issuer, Noncontrolled [Member] | Pineapple Energy LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) 0 [3],[4] 8,469 [3] 0 [3],[4] 8,469 [3] $ 8,338 [2]  
Interest Income [3] 81 [4] 1 1,204 [4] 3    
Fee Income [3] 0 [4] 0 0 [4] 0    
Total net change in unrealized appreciation (depreciation) [3] 4,631 [4] (52) 4,209 [4] 9    
Total net realized gain (loss) [3] $ (2,014) [4] 0 $ (2,014) [4] 0    
Investment, Affiliated Issuer, Noncontrolled [Member] | Solar Spectrum Holdings LLC (p.k.a. Sungevity, Inc.)            
Schedule Of Investments [Line Items]            
Total investments, at fair value (cost of $2,869,469 and $2,390,984, respectively; fair value amounts related to a VIE $236,826 and $0, respectively) [3]   0   0    
Interest Income [3]   0   0    
Fee Income [3]   0   0    
Total net change in unrealized appreciation (depreciation) [3]   0   62,183    
Total net realized gain (loss) [3]   $ 0   $ (62,143)    
[1] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs.
[2] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs.
[3] In accordance with Rules 3-09, 4-08(g), and Rule 10-01(b)(1) of Regulation S-X, (“Rule 3-09”, “Rule 4-08(g)”, and “Rule 10-01(b)(1)”, respectively), the Company must determine if its unconsolidated subsidiaries are considered “significant subsidiaries”. As of September 30, 2022 and September 30, 2021, there were no unconsolidated subsidiaries that are considered “significant subsidiaries”.
[4] As of September 30, 2022, Black Crow AI, Inc. and Pineapple Energy LLC are no longer affiliates as defined under the 1940 Act.