Other Noninterest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Expense Disclosure Nonoperating [Abstract]
Advertising	$ 4,234	$ 3,080
Corporate value and franchise taxes	4,296	4,042
Printing and supplies	1,108	1,169
Telecommunications and postage	4,065	3,466
Travel expense	1,111	1,098
Entertainment and contributions	2,447	2,708
Tax credit investment amortization	961	1,138
Other retirement expense	(6,122)	(4,105)
Other miscellaneous	7,469	5,691
Total other noninterest expense	$ 19,569	$ 18,287