NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Changes in Servicing Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Transfers and Servicing [Abstract]
Balance at beginning of year	$ 33,071	$ 26,762	$ 27,428
Purchases of servicing assets	0	7,781	0
Capitalization of servicing assets	5,194	4,864	4,039
Amortization	(7,215)	(5,777)	(4,592)
Temporary impairment recoveries (charges), net	124	(206)	(43)
Adjustment for loans repurchased	(188)	(353)	(70)
Balance at end of year	$ 30,986	$ 33,071	$ 26,762