Premises and Equipment - Summary of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	$ (61,657)	$ (58,401)
Premises and equipment, net	72,327	78,687
Depreciable premises and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	132,767	135,689
Premises and equipment, net	71,110	77,288
Land and land improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	25,899	29,002
Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	64,018	64,382
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	42,850	42,305
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 1,217	$ 1,399