DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Fair Value of Derivative Instruments and Location in Statement of Financial Condition (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivatives Fair Value [Line Items]
Other Assets	$ 234,143	$ 272,737
Accrued Liabilities and Other Liabilities	214,852	276,747
Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivatives Fair Value [Line Items]
Derivative Assets	1,505	2,482
Derivative Liabilities	1,178	1,920
Not Designated as Hedging Instrument, Economic Hedge [Member] | Sale of TBA GNMA MBS pools
Derivatives Fair Value [Line Items]
Other Assets	0	102
Accrued Liabilities and Other Liabilities	78	280
Not Designated as Hedging Instrument, Economic Hedge [Member] | Forward loan sales commitments [Member]
Derivatives Fair Value [Line Items]
Other Assets	20	20
Accrued Liabilities and Other Liabilities	0	0
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Lock Commitments [Member]
Derivatives Fair Value [Line Items]
Other Assets	379	737
Accrued Liabilities and Other Liabilities	0	0
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Cap [Member] | Written [Member]
Derivatives Fair Value [Line Items]
Other Assets	0	0
Accrued Liabilities and Other Liabilities	8	1
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Cap [Member] | Purchase [Member]
Derivatives Fair Value [Line Items]
Other Assets	8	1
Accrued Liabilities and Other Liabilities	0	0
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Swap [Member]
Derivatives Fair Value [Line Items]
Derivative Assets	1,098	1,622
Derivative Liabilities	$ 1,092	$ 1,639