Other Income and Other Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Professional services	$ 4,399	$ 3,779	$ 14,207	$ 13,529
Postage	1,964	1,932	6,277	5,937
Telephone	1,516	2,103	4,758	6,738
Credit card expense	2,727	2,818	7,588	7,690
Marketing	5,019	3,517	12,912	11,430
Software and technology	10,134	9,552	30,242	29,021
Operating supplies	605	824	2,013	2,588
Amortization of intangibles	3,332	3,362	10,008	10,144
Branch right sizing expense	(3,280)	442	(2,187)	2,401
Other expense	8,149	7,478	22,008	23,676
Total other operating expenses	$ 34,565	$ 35,807	$ 107,826	$ 113,154