Summary of Significant Accounting Policies - Components of the Company's Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounting Policies [Abstract]
Interest income	$ 11,662	$ 12,524
PIK interest income	2,115	2,272
Dividend income	1,012	1,095
Fee income	37
Fee income		310
Prepayment gain (loss)	105	243
Accretion of discounts and amortization of premiums	251	360
Total investment income	15,182	16,804
PIK dividends	$ 113	$ 128