DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts of All Derivative Instruments (Detail) - Not Designated as Hedging Instrument, Economic Hedge [Member] - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Economic undesignated hedges:
Derivative Notional Amount	$ 93,353	$ 126,793
Sale of TBA GNMA MBS pools
Economic undesignated hedges:
Derivative Notional Amount	27,000	42,000
Forward loan sales commitments [Member]
Economic undesignated hedges:
Derivative Notional Amount	12,668	19,998
Interest Rate Lock Commitments [Member]
Economic undesignated hedges:
Derivative Notional Amount	12,097	19,931
Interest Rate Cap [Member] | Written [Member]
Economic undesignated hedges:
Derivative Notional Amount	14,500	14,500
Interest Rate Cap [Member] | Purchase [Member]
Economic undesignated hedges:
Derivative Notional Amount	14,500	14,500
Interest Rate Swap [Member]
Economic undesignated hedges:
Derivative Notional Amount	$ 12,588	$ 15,864