Investments - SLF Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Fair Value	$ 1,543,910	$ 1,468,996
Cash	4,319	5,716	$ 3,294	$ 4,998
Restricted cash	32,243	46,488	$ 12,137	$ 8,973
Other assets	249	9,490
Total assets	1,600,601	1,544,642
LIABILITIES
Debt	711,386	763,400
Less: Unamortized deferred financing costs	(11,703)	(11,914)
Debt, less unamortized deferred financing costs	699,683	751,486
Interest payable	9,172	7,289
Accounts payable and accrued expenses	9,693	9,705
Total liabilities	741,742	789,726
Total net assets	$ 858,859	$ 754,916