Other Noninterest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Expense Disclosure Nonoperating [Abstract]
Advertising	$ 2,486	$ 4,234
Corporate value and franchise taxes	4,464	4,296
Telecommunications and postage	3,318	4,065
Entertainment and contributions	1,448	2,447
Travel expense	357	1,111
Printing and supplies	978	1,108
Tax credit investment amortization	1,112	961
Net other retirement expense	(6,545)	(6,122)
Other miscellaneous	6,130	7,469
Total other noninterest expense	$ 13,748	$ 19,569