Income Taxes - Summary of Reconciliation Increase in Net Assets (Details) - USD ($) $ in Thousands	3 Months Ended										9 Months Ended	12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Increase (decrease) in net assets resulting from operations	$ 173,641	$ 126,980	$ 107,594	$ 97,725	$ 61,437	$ 61,503	$ 32,831	$ 28,218	$ 5,120	$ (330)	$ 3,847	$ 505,940	$ 183,989
Adjustments:
Net unrealized (gains) losses on investments											1,663	(134,024)	(56,755)
Other income (loss) for tax purposes, not book											1,211	13,315	7,579
Deferred organization costs											(47)	(146)	(146)
Other expenses not currently deductible											2,382	2,184	1,547
Other book-tax differences												17,879	6,958
Taxable Income											$ 9,056	$ 405,148	$ 143,172