NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Weighted-Averages of Key Economic Assumptions in Valuation Model (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS [Abstract]
Carrying amount of servicing assets	$ 28,431	$ 29,037	$ 30,753	$ 30,986
Fair value	$ 45,270	$ 44,710
Weighted-average expected life	7 years 9 months 18 days	7 years 9 months 18 days
Constant prepayment rate	6.34%	6.40%
Decrease in fair value due to 10% adverse change	$ 1,040	$ 1,048
Decrease in fair value due to 20% adverse change	$ 2,036	$ 2,054
Discount rate	10.70%	10.69%
Decrease in fair value due to 10% adverse change	$ 1,960	$ 1,925
Decrease in fair value due to 20% adverse change	$ 3,770	$ 3,704