Income Taxes - Summary of Reconciliation Increase in Net Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Increase in net assets resulting from operations	$ 186,566	$ 222,023	$ 108,053
Adjustments:
Net unrealized (gain) losses on investments	42,024	(13,191)	74,969
Other income for tax purposes, not book.	(1,815)	2,680	688
Deferred organization costs	(100)	(100)	(100)
Other expenses not currently deductible	3,809	2,263	2,621
Other book-tax differences	(12,365)	(4,959)	(11,123)
Taxable Income	$ 218,119	$ 208,716	$ 175,108