Other Income and Other Operating Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Income and Expenses [Abstract]
Professional services	$ 3,779	$ 4,310	$ 13,529	$ 12,125
Postage	1,932	1,471	5,937	4,642
Telephone	2,103	2,506	6,738	5,605
Credit card expense	5,190	4,200	14,154	11,822
Marketing	3,517	7,021	11,430	12,514
Software and technology	9,552	6,531	29,021	16,607
Operating supplies	824	493	2,588	1,671
Amortization of intangibles	3,362	2,947	10,144	8,535
Branch right sizing expense	442	160	2,401	3,092
Other expense	7,478	8,240	23,676	24,195
Total other operating expenses	$ 38,179	$ 37,879	$ 119,618	$ 100,808