Premises and Equipment - Summary of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 129,968	$ 127,083
Accumulated depreciation	(77,336)	(71,469)
Total	52,632	55,614
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	8,651	8,651
Premises
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	62,313	61,299
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	46,799	45,072
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 12,205	$ 12,061