v3.26.1
Condensed Consolidated Statements of Changes in Net Assets - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Investment Company, Net Assets [Roll Forward]        
Beginning balance $ 6,099,680 $ 6,240,869 $ 6,245,175 $ 6,076,521
Issuance of Common Shares, net of offering and underwriting costs 0 64,012 0 248,842
Reinvestment of dividends 8,709 [1] 5,380 [2] 16,823 [1] 10,510 [2]
Net investment income after tax expense 173,785 175,902 352,701 364,697
Net change in unrealized appreciation (depreciation), net of income tax (provision) benefit (136,502) (11,300) (291,397) (55,174)
Net realized gain (loss), net of tax expense (27,797) (9,560) (26,572) (4,672)
Dividends declared and payable from net investment income (179,142) (177,007) (357,997) (352,428)
Ending balance 5,938,733 6,288,296 5,938,733 6,288,296
Par Amount        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 232 228 232 222
Issuance of Common Shares, net of offering and underwriting costs 0 2 0 8
Reinvestment of dividends [1] 1   1  
Ending balance 233 230 233 230
Additional Paid in Capital        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 6,055,864 5,939,716 6,047,750 5,749,762
Issuance of Common Shares, net of offering and underwriting costs 0 64,010 0 248,834
Reinvestment of dividends 8,708 [1] 5,380 [2] 16,822 [1] 10,510 [2]
Ending balance 6,064,572 6,009,106 6,064,572 6,009,106
Distributable Earnings (Loss)        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 43,584 300,925 197,193 326,537
Net investment income after tax expense 173,785 175,902 352,701 364,697
Net change in unrealized appreciation (depreciation), net of income tax (provision) benefit (136,502) (11,300) (291,397) (55,174)
Net realized gain (loss), net of tax expense (27,797) (9,560) (26,572) (4,672)
Dividends declared and payable from net investment income (179,142) (177,007) (357,997) (352,428)
Ending balance $ (126,072) $ 278,960 $ (126,072) $ 278,960
[1] The par amount of the shares is less than 1,000 and rounds to zero.
[2] The par amount of the shares is less than 1,000 and rounds to zero.