PREMISES AND EQUIPMENT - Summary of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 86,092	$ 83,140
Less accumulated depreciation	35,063	32,923
Bank premises and equipment, net	51,029	50,217
Land and land improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	12,426	12,421
Buildings and improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	40,423	37,932
Leasehold improvements
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	6,806	6,685
Furniture and equipment
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	26,036	25,345
Construction in progress
Property, Plant and Equipment [Line Items]
Bank premises and equipment, gross	$ 401	$ 757