Tax Information - Schedule of Reconciles Net Increase in Net Assets Resulting from Operations to Taxable Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Net increase in net assets resulting from operations		$ 119,267	$ 62,867	$ 195,874
Adjustments:
Net unrealized loss (gain) on investments and foreign currency forward contracts and translations		(60,390)	35,762	(21,214)
Income not currently taxable		10,358	(9,259)	(23,098)
Income for tax but not book		82	726	484
Expenses not currently deductible		4,111	5,791	5,970
Expenses for tax but not for book		(282)	(68)	(1,131)
Realized gain(loss) differences		(318,188)	(180,396)	(79,145)
Taxable income net of capital loss carryforward		(245,042)	(84,577)	77,740
Capital loss carryforward		418,484	327,078	150,640
Taxable income	[1]	$ 173,442	$ 242,501	$ 228,380

[1] Taxable income is an estimate and is not fully determined until the Company’s tax return is filed.