Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED SCHEDULE OF INVESTMENTS IN AND ADVANCES TO AFFILIATES - Summary of schedule of investment (Details)

v3.24.2.u1
CONSOLIDATED SCHEDULE OF INVESTMENTS IN AND ADVANCES TO AFFILIATES - Summary of schedule of investment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income $ 125,006 $ 116,231 $ 246,559 $ 221,321
Investments, fair value, beginning balance     3,248,046  
Net Change in Unrealized Appreciation (Depreciation) (34,722) 18,858 (31,088) 39,963
Investments, fair value, ending balance 3,568,539   3,568,539  
Control investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     6,486 2,209
Realized Gain (Loss) 0 0 0 0
Investments, fair value, beginning balance     115,004 76,458
Gross Additions     590 1,046
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation) (1,506) 4,573 (4,335) 13,419
Investments, fair value, ending balance 111,259 90,923 111,259 90,923
Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     6,142 1,867
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     103,487 68,416
Gross Additions     590 1,046
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     (4,352) 14,388
Investments, fair value, ending balance 99,725 83,850 99,725 83,850
Control investments | Other Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     344 342
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     11,517 8,042
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     17 (969)
Investments, fair value, ending balance 11,534 7,073 11,534 7,073
Coronado Aesthetics, LLC | Control investments        
Investments in and Advances to Affiliates [Line Items]        
Realized Gain (Loss) 0 0 0 0
Net Change in Unrealized Appreciation (Depreciation) (97) 41 (76) (22)
Investments, fair value, ending balance 186 297 186 297
Gibraltar Business Capital, LLC | Control investments        
Investments in and Advances to Affiliates [Line Items]        
Realized Gain (Loss) 0 0 0 0
Net Change in Unrealized Appreciation (Depreciation) (1,670) 2,667 (6,291) 6,402
Investments, fair value, ending balance 56,811 44,392 56,811 44,392
Hercules Adviser LLC | Control investments        
Investments in and Advances to Affiliates [Line Items]        
Realized Gain (Loss) 0 0 0 0
Net Change in Unrealized Appreciation (Depreciation) 844 2,566 2,015 8,008
Investments, fair value, ending balance 42,728 39,161 42,728 39,161
Tectura Corporation | Control investments        
Investments in and Advances to Affiliates [Line Items]        
Realized Gain (Loss) 0 0 0 0
Net Change in Unrealized Appreciation (Depreciation) (583) (701) 17 (969)
Investments, fair value, ending balance 11,534 7,073 11,534 7,073
Preferred Stock | Coronado Aesthetics, LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0 0
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     260 313
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     (75) (21)
Investments, fair value, ending balance 185 292 185 292
Preferred Stock | Gibraltar Business Capital, LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income       0
Realized Gain (Loss)       0
Investments, fair value, beginning balance       15,244
Gross Additions       1,000
Gross Reductions       0
Net Change in Unrealized Appreciation (Depreciation)       3,535
Investments, fair value, ending balance   19,779   19,779
Preferred Stock | Tectura Corporation | Control investments | Other Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0 0
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     3,263 0
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     16 0
Investments, fair value, ending balance 3,279   3,279  
Common Stock | Coronado Aesthetics, LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0 0
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     2 6
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     (1) (1)
Investments, fair value, ending balance 1 5 1 5
Common Stock | Tectura Corporation | Control investments | Other Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0 0
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     4 0
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     1 0
Investments, fair value, ending balance 5   5  
Member Units | Gibraltar Business Capital, LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0  
Realized Gain (Loss)     0  
Investments, fair value, beginning balance     28,034  
Gross Additions     0  
Gross Reductions     0  
Net Change in Unrealized Appreciation (Depreciation)     (6,291)  
Investments, fair value, ending balance 21,743   21,743  
Member Units | Hercules Adviser LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     0 0
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     28,713 19,153
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     2,015 8,008
Investments, fair value, ending balance 30,728 27,161 30,728 27,161
Unsecured Debt | Gibraltar Business Capital, LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     2,639 1,565
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     34,478 21,700
Gross Additions     590 46
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     0 2,867
Investments, fair value, ending balance 35,068 24,613 35,068 24,613
Unsecured Debt | Hercules Adviser LLC | Control investments | Majority Owned Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     3,503 302
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     12,000 12,000
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     0 0
Investments, fair value, ending balance 12,000 12,000 12,000 12,000
Senior Secured Debt | Tectura Corporation | Control investments | Other Control Investments        
Investments in and Advances to Affiliates [Line Items]        
Amount of Interest and Fees Credited to Income     344 342
Realized Gain (Loss)     0 0
Investments, fair value, beginning balance     8,250 8,042
Gross Additions     0 0
Gross Reductions     0 0
Net Change in Unrealized Appreciation (Depreciation)     0 (969)
Investments, fair value, ending balance $ 8,250 $ 7,073 $ 8,250 $ 7,073