Comprehensive Income (Loss) - AOCI Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning	$ 285,110	$ 339,317	$ 346,895	$ 334,426
Total other comprehensive loss, net	(23,295)	(1,296)	(100,335)	(8,529)
Balance, ending	272,193	346,540	272,193	346,540
Unrealized Gains (Losses) on Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning	(72,378)	16,293	4,662	24,216
Total other comprehensive loss, net	(23,295)	(2,629)	(100,335)	(10,552)
Balance, ending	(95,673)	13,664	(95,673)	13,664
Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning	0	(1,333)	0	(2,023)
Total other comprehensive loss, net	0	1,333	0	2,023
Balance, ending	0	0	0	0
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning	(72,378)	14,960	4,662	22,193
Balance, ending	$ (95,673)	$ 13,664	$ (95,673)	$ 13,664