Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of provision for tax from the federal rate to the effective tax rate [Abstract]
Income tax computed at statutory tax rate	$ 15,487	$ 36,837	$ 39,854
Tax exempt interest	(4,419)	(3,935)	(4,284)
Nondeductible interest expense	271	106	247
State income taxes, net	2,596	1,673	7,457
Income tax credits, net	(10,071)	(10,479)	(9,375)
Death benefit gains	(287)	(175)	(91)
Other	1,717	4,021	(4,051)
Income tax provision	$ 1,860	$ 28,048	$ 29,757