Borrowings - SPV II Credit Facility (Details) - USD ($) $ in Thousands	12 Months Ended	36 Months Ended
	Dec. 20, 2026	Dec. 31, 2025	Dec. 20, 2025	Mar. 31, 2025		Dec. 31, 2024		Jun. 18, 2024	Dec. 20, 2022
Borrowings
Fair value				$ 4,520,627	[1],[2]	$ 4,008,973	[3],[4]
SPV II Credit Facility
Borrowings
Maximum borrowing capacity								$ 245,447	$ 100,000
Interest rate, floor				0.50%
Weighted average interest rate				6.70%		6.90%
Percentage of principal proceeds to be reinvested									25.00%
SPV II Credit Facility | Forecast
Borrowings
Interest rate, basis spread	3.40%	2.40%
Percentage of principal proceeds to be prepaid	100.00%		75.00%
SPV II Credit Facility | Asset pledged as collateral
Borrowings
Fair value				$ 290,939		$ 307,517

[1] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940, as amended, (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.

[2] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).

[3] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940, as amended, (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.

[4] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).