Parent Company Condensed Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Expenses
Junior subordinated debentures	$ 1,136	$ 1,133	$ 2,215
Subordinated debt	2,185	1,610
Senior notes	2,682	2,692	2,692
Income before income taxes and equity in undistributed net income of subsidiaries	91,549	27,867	37,408
Income tax benefit	24,144	7,823	9,583
Net income available to common stockholders	67,405	20,044	27,825
Parent Company
Operating Income
Cash dividends received from subsidiaries	40,000	40,000	41,300
Other income	29	15	32
Total operating income	40,029	40,015	41,332
Operating Expenses
Junior subordinated debentures	1,136	1,133	2,216
Subordinated debt	2,185	1,610
Senior notes	2,682	2,692	2,693
Notes payable	385	291	362
Other expenses	5,086	6,918	3,669
Total operating expense	11,474	12,644	8,940
Income before income taxes and equity in undistributed net income of subsidiaries	28,555	27,371	32,392
Income tax benefit	(3,216)	(2,986)	(2,215)
Income before equity in undistributed net income of subsidiaries	31,771	30,357	34,607
Equity in undistributed net income of subsidiaries	35,634	(10,313)	(6,782)
Net income available to common stockholders	$ 67,405	$ 20,044	$ 27,825