PREMISES AND EQUIPMENT - Components of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 200,872	$ 211,167
Less: Accumulated depreciation	114,844	106,683
Net premises and equipment	86,028	104,484
Land
Property, Plant and Equipment [Line Items]
Gross premises and equipment	23,685	33,919
Buildings
Property, Plant and Equipment [Line Items]
Gross premises and equipment	36,508	49,262
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross premises and equipment	76,685	70,431
Furniture and equipment
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 63,994	$ 57,555