Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment	$ 127,027	$ 122,003
Less: accumulated depreciation	55,119	43,119
Premises and equipment, net	71,908	78,884
Depreciation expense for premises and equipment	16,000	13,300	$ 9,800
Land
Property, Plant and Equipment [Line Items]
Property and equipment	16,090	16,090
Premises
Property, Plant and Equipment [Line Items]
Property and equipment	19,773	20,371
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	39,776	36,634
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Property and equipment	49,733	48,723
Automobiles
Property, Plant and Equipment [Line Items]
Property and equipment	143	185
Software
Property, Plant and Equipment [Line Items]
Property and equipment	$ 1,512	$ 0