Income Taxes - Summary of Tax Basis Components of Distributable Earnings (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Undistributed net investment income - tax basis	$ 9,056	$ 89,489
Net unrealized gains (losses) on investments	(2,875)	(45,694)
Other temporary differences	(2,088)	(52,607)
Total distributable earnings - book basis	$ 4,093	$ 82,576