Other Noninterest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Expense, Nonoperating [Abstract]
Corporate value and franchise taxes and other non-income taxes	$ 5,238	$ 4,010	$ 15,732	$ 12,816
Advertising	3,621	3,533	10,353	10,211
Telecommunications and postage	2,590	3,027	8,373	8,923
Entertainment and contributions	2,765	2,231	7,978	7,632
Tax credit investment amortization	1,494	1,004	4,297	3,012
Printing and supplies	968	971	3,107	2,892
Travel expense	1,368	1,239	4,065	3,022
Net other retirement expense	(3,228)	(7,570)	(10,195)	(22,123)
Other miscellaneous	7,404	7,508	22,536	21,214
Total other noninterest expense	$ 22,220	$ 15,953	$ 66,246	$ 47,599