Investments - Schedule of Investments Excluding Investments in Money Market Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Schedule of Investments [Line Items]
Cost	$ 1,467,586	$ 1,596,478
Fair Value	1,369,235	1,534,345
1st Lien/Senior Secured Debt
Schedule of Investments [Line Items]
Cost	1,385,087	1,514,118
Fair Value	1,308,266	1,468,487
1st Lien/Last-Out Unitranche
Schedule of Investments [Line Items]
Cost	30,959	30,821
Fair Value	27,582	29,474
2nd Lien/Senior Secured Debt
Schedule of Investments [Line Items]
Cost	3,789	3,789
Fair Value	1,023	2,526
Unsecured Debt
Schedule of Investments [Line Items]
Cost	6,559	6,558
Fair Value	6,654	6,654
Preferred Stock
Schedule of Investments [Line Items]
Cost	16,005	16,005
Fair Value	21,137	23,007
Common Stock
Schedule of Investments [Line Items]
Cost	23,521	23,521
Fair Value	4,207	3,974
Warrants
Schedule of Investments [Line Items]
Cost	1,666	1,666
Fair Value	$ 366	$ 223