Premises and Equipment - Summary of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total cost	$ 147,722	$ 143,168
Accumulated depreciation	(54,281)	(50,752)
Net premises and equipment	93,441	92,416
Land
Property, Plant and Equipment [Line Items]
Total cost	28,079	27,224
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total cost	86,507	86,004
Furniture and equipment
Property, Plant and Equipment [Line Items]
Total cost	$ 33,136	$ 29,940