Annual report [Section 13 and 15(d), not S-K Item 405]

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Narrative (Details)

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DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]    
Quarterly dividend $ 58,200 $ 56,100
Dividends, per share (in dollars per share) $ 1.450 $ 1.40
Dividends on accrual basis $ 58,200  
Dividends on accrual basis, per share (in dollars per share) $ 1.450  
Ordinary income totaling (in dollars per share) 0.945  
Long-Term capital gain (in dollars per share) 0.351  
Qualified dividend income totaling (in dollars per share) $ 0.154  
Undistributed taxable income $ (20,300)  
Undistributed taxable income (in dollars per share) $ 0.51  
Effective tax rate (as a percent) 0.00%  
Investments, cost for U.S. federal income tax $ 1,185,000 $ 1,035,000
Investments, net unrealized appreciation 55,300 57,900
Investments, gross unrealized appreciation 182,900 154,300
Investments, gross unrealized depreciation 127,600 96,400
Net deferred tax assets $ 625  
Net deferred tax liabilities   $ 3,259