Quarterly report [Sections 13 or 15(d)]

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Reconciliation to Taxable Income and to Total Distributions Declared to Common Stockholders (Details)

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DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Reconciliation to Taxable Income and to Total Distributions Declared to Common Stockholders (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Income Tax Disclosure [Abstract]                
Net increase in net assets resulting from operations $ 123,671 $ 122,534 $ 116,082 $ 124,007 $ 102,688 $ 107,147 $ 362,287 $ 333,847
Book-tax difference from share-based compensation expense             (9,878) (5,256)
Net unrealized appreciation             (107,217) (85,431)
Income tax provision             21,360 33,719
Pre-tax book income not consolidated for tax purposes             (96,943) (72,335)
Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates             75,778 35,962
Estimated taxable income             245,387 240,506
Taxable income earned in prior year and carried forward for distribution in current year             120,488 56,142
Taxable income earned prior to period end and carried forward for distribution next period             (105,651) (51,664)
Dividend payable as of period end and paid in the following period             22,832 21,575
Total distributions accrued or paid to common stockholders             $ 283,056 $ 266,559