PREMISES AND EQUIPMENT, NET - Schedule of Premises and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 59,066	$ 61,631
Less: Accumulated depreciation and amortization	(53,139)	(54,758)
Total	5,927	6,873
Computer hardware and software
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	48,935	50,452
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	5,837	5,927
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	3,856	4,441
Office equipment and other
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 438	$ 811

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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