Income Taxes - Summary of Tax Basis Components of Distributable Earnings (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2023
Adjustments:
Net unrealized (gains) losses on investments	$ (29,957)	$ (423)	$ (13,047)	$ (432)	$ (432)	$ (43,427)