Consolidated Schedule of Investments (Unaudited) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Percentage of non-qualifying assets	26.70%	27.80%
Percentage of minimum qualifying assets to purchase non qualifying assets	70.00%	70.00%
Minimum percentage of voting securities	5.00%	5.00%
Tax cost of investments	$ 7,918,126	$ 7,102,780
Estimated gross unrealized gains on tax cost investment	290,520	222,515
Estimated gross unrealized loss on tax cost investment	207,578	56,184
Fair value of securities as percentage of net assets amount	$ 29,105
Fair value of securities as percentage of net assets amount		$ 77,388
Fair value of securities as percentage of net assets in percentage	0.70%
Fair value of securities as percentage of net assets in percentage		1.90%
Principal amount outstanding and accrued interest	$ 28,800	$ 25,000
U.S. Federal Tax
Tax cost of investments	7,918,126	7,102,780
Estimated gross unrealized gains on tax cost investment	290,520	222,515
Estimated gross unrealized loss on tax cost investment	$ 207,578	$ 56,184
Controlled, Affiliated Investments
Minimum percentage of voting securities	25.00%	25.00%