Investment Portfolio - Schedule of Composition by Investment Type (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Cost
Senior Secured Loans	$ 1,323,621	$ 1,299,169
Fair Value
Senior Secured Loans	1,312,733	1,305,046
Money Market Fund	17,207	56,856
Senior Secured Loans - First Lien
Cost
Senior Secured Loans	1,320,397	1,295,967
Fair Value
Senior Secured Loans	$ 1,311,638	$ 1,303,361
Senior Secured Loans - First Lien | Investments, Total | Investment Type Risk
Fair Value
Percentage of Portfolio	98.60%	95.60%
Subordinated Debt
Cost
Subordinated Debt	$ 765	$ 743
Total	765	743
Fair Value
Senior Secured Loans	642	743
Subordinated Debt	$ 642	$ 743
Subordinated Debt | Investments, Total | Investment Type Risk
Fair Value
Percentage of Portfolio	0.10%	0.10%
Equity
Cost
Equity	$ 2,459	$ 2,459
Total	2,459	2,459
Fair Value
Senior Secured Loans	453	942
Equity	$ 453	$ 942
Equity | Investments, Total | Investment Type Risk
Fair Value
Percentage of Portfolio	0.00%	0.10%
Money Market Fund
Cost
Money Market Fund	$ 17,207	$ 56,856
Fair Value
Money Market Fund	$ 17,207	$ 56,856
Money Market Fund | Investments, Total | Investment Type Risk
Fair Value
Percentage of Portfolio	1.30%	4.20%
Total
Cost
Total	$ 1,340,828	$ 1,356,025
Fair Value
Total Investments including Money Market Fund	$ 1,329,940	$ 1,361,902
Total | Investments, Total | Investment Type Risk
Fair Value
Percentage of Portfolio	100.00%	100.00%