Other Noninterest Expense - Other Non Interest Expense (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Expense Disclosure Nonoperating [Abstract]
Legal and other professional fees		$ 5,119	$ 3,693	$ 3,328
Marketing		1,938	2,262	2,407
OREO expenses and write-downs		86	369	742
Printing and office supplies		1,032	603	631
Postage		1,173	484	505
Check charge-offs and fraud losses		870	384	415
Credit and collection expense		550	398	379
Other	[1]	12,521	9,415	6,710
Total other noninterest expense		$ 23,289	$ 17,608	$ 15,117

[1] 2018 includes a credit of $806,000 for an accounting correction related to the Deferred Compensation Plan. See Note 19 for further details.