FAIR VALUE MEASUREMENTS - Schedule of Fair Value of Derivative Instruments and Loans Held for Sale (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Derivative notional amount and balance sheet location
Estimated Gain on Sale	$ 77,152	$ 107,748
Total Fair Value Adjustment	77,152	107,748
Derivative assets	37,364	49,786
Derivative Liabilities	(6,403)	(5,066)
Fair Value Adjustment to Loans Held for Sale	46,191	63,028
Loans Held for Sale
Derivative notional amount and balance sheet location
Notional or Principal Amount	1,765,395	2,386,169
Estimated Gain on Sale	47,315	62,167
Interest Rate Movement	(1,124)	861
Total Fair Value Adjustment	46,191	63,028
Fair Value Adjustment to Loans Held for Sale	46,191	63,028
Forward Sale Contracts
Derivative notional amount and balance sheet location
Notional or Principal Amount	2,881,224	3,760,953
Interest Rate Movement	5,728	836
Total Fair Value Adjustment	5,728	836
Derivative assets	10,838	5,891
Derivative Liabilities	(5,110)	(5,055)
Rate Lock Commitments
Derivative notional amount and balance sheet location
Notional or Principal Amount	1,115,829	1,374,784
Estimated Gain on Sale	29,837	45,581
Interest Rate Movement	(4,604)	(1,697)
Total Fair Value Adjustment	25,233	43,884
Derivative assets	26,526	43,895
Derivative Liabilities	$ (1,293)	$ (11)