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)

v3.23.2
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 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Schedule Of Investments [Line Items]            
Total investments, at fair value $ 3,112,789   $ 3,112,789   $ 2,963,955  
Interest Income 108,986 $ 68,731 208,883 $ 130,983    
Fee Income 7,245 3,384 12,438 6,289    
Total net change in unrealized appreciation (depreciation) 18,858 (48,316) 39,963 (85,058)    
Total net realized gain (loss) 217 (2,133) 8,177 (4,514)    
Affiliate Investments            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1]   3,613   3,613    
Interest Income [1]   76   1,123    
Fee Income [1]   0   0    
Total net change in unrealized appreciation (depreciation) [1]   (1,295)   (542)    
Total net realized gain (loss) [1]   0   3,772    
Investment, Affiliated Issuer [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value   86,488   86,488   $ 82,962
Interest Income 0 76 0 1,123    
Total net change in unrealized appreciation (depreciation)       5,640    
Total net realized gain (loss)       3,772    
Investment, Affiliated Issuer, Controlled [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value 90,923 [1],[2] 82,875 [1] 90,923 [1],[2] 82,875 [1] $ 76,458 [3] 73,504
Interest Income [1] 1,055 1,144 2,171 2,259    
Fee Income [1] 19 17 38 33    
Total net change in unrealized appreciation (depreciation) [1] 4,573 4,728 13,419 6,182    
Total net realized gain (loss) [1] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Coronado Aesthetics, LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1] 297 422 297 422    
Interest Income [1] 0 0 0 0    
Fee Income [1] 0 0 0 0    
Total net change in unrealized appreciation (depreciation) [1] (41) (192) (22) (143)    
Total net realized gain (loss) [1] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Gibraltar Business Capital, LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1] 44,392 [4] 39,064 44,392 [4] 39,064    
Interest Income [1] 731 [4] 844 1,527 [4] 1,678    
Fee Income [1] 19 [4] 17 38 [4] 33    
Total net change in unrealized appreciation (depreciation) [1] 2,667 [4] (3,578) 6,402 [4] (4,805)    
Total net realized gain (loss) [1] 0 [4] 0 0 [4] 0    
Investment, Affiliated Issuer, Controlled [Member] | Hercules Adviser LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1] 39,161 35,181 39,161 35,181    
Interest Income [1] 152 128 302 239    
Fee Income [1] 0 0 0 0    
Total net change in unrealized appreciation (depreciation) [1] 2,566 8,637 8,008 11,191    
Total net realized gain (loss) [1] 0 0 0 0    
Investment, Affiliated Issuer, Controlled [Member] | Tectura Corporation            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1] 7,073 8,208 7,073 8,208    
Interest Income [1] 172 172 342 342    
Fee Income [1] 0 0 0 0    
Total net change in unrealized appreciation (depreciation) [1] (701) (139) (969) (61)    
Total net realized gain (loss) [1] 0 0 0 0    
Control and Affiliate Issuer Investments [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1]   86,488   86,488    
Interest Income [1]   1,220   3,382    
Fee Income [1]   17   33    
Total net change in unrealized appreciation (depreciation) [1]   3,433   5,640    
Total net realized gain (loss) [1]   0   3,772    
Investment, Affiliated Issuer, Noncontrolled [Member]            
Schedule Of Investments [Line Items]            
Total investments, at fair value   3,613   3,613   $ 9,458
Interest Income 107,931 67,511 206,712 127,601    
Total net change in unrealized appreciation (depreciation) 0 (1,295) 0 (542)    
Total net realized gain (loss) $ 0 0 $ 0 3,772    
Investment, Affiliated Issuer, Noncontrolled [Member] | Black Crow AI, Inc. affiliates            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1],[5]   0   0    
Interest Income [1],[5]   0   0    
Fee Income [1],[5]   0   0    
Total net change in unrealized appreciation (depreciation) [1],[5]   0   (120)    
Total net realized gain (loss) [1],[5]   0   3,772    
Investment, Affiliated Issuer, Noncontrolled [Member] | Pineapple Energy LLC            
Schedule Of Investments [Line Items]            
Total investments, at fair value [1],[5]   3,613   3,613    
Interest Income [1],[5]   76   1,123    
Fee Income [1],[5]   0   0    
Total net change in unrealized appreciation (depreciation) [1],[5]   (1,295)   (422)    
Total net realized gain (loss) [1],[5]   $ 0   $ 0    
[1] 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 June 30, 2023, there were no unconsolidated subsidiaries that are considered “significant subsidiaries”. As of June 30, 2022, the Hercules Adviser, LLC qualified as a significant subsidiary pursuant to Rule 10-01(b)(1). The total revenue, operating income, and net income were $3.5 million, $(1.9) million, and $(1.8) million for the six months ended June 30, 2022.
[2] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs.
[3] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs.
[4] Gibraltar Acquisition LLC is a wholly-owned subsidiary, which is the holding company for their wholly-owned affiliated portfolio companies, Gibraltar Business Capital, LLC and Gibraltar Equipment Finance, LLC. The subsidiary has no significant assets or liabilities, other than their equity and debt investments and equity interest in Gibraltar Business Capital, LLC and Gibraltar Equipment Finance, LLC, respectively.
[5] As of September 30, 2022, Black Crow AI, Inc. and Pineapple Energy LLC were no longer affiliates as defined under the 1940 Act.