PREMISES AND EQUIPMENT - Schedule of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 333,100	$ 325,757
Accumulated depreciation	(112,817)	(100,357)
Premises and equipment, net	220,283	225,400
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	69,387	69,038
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	176,153	173,456
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	85,217	82,268
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 2,343	$ 995