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Borrowings - SBA-guaranteed Debenture, Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Amortization of financing costs			$ 3,329	$ 3,379
SBA-guaranteed debentures
Debt Instrument [Line Items]
Interest expense	$ 2,021	$ 2,021	4,019	4,019
Amortization of financing costs	$ 250	$ 250	$ 497	$ 497
Weighted average interest rate	2.70%	2.70%	2.70%	2.70%
Effective interest rate	3.00%	3.00%	3.00%	3.00%
Average debt outstanding	$ 300,000	$ 300,000	$ 300,000	$ 300,000

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