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NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Components of Net Servicing Income (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Transfers and Servicing [Abstract]        
Servicing fees $ 2,758 $ 3,213 $ 8,398 $ 9,146
Late charges and prepayment penalties 201 87 614 543
Servicing income, gross 2,939 3,268 8,864 9,541
Amortization and impairment of servicing assets (1,246) (1,764) (3,785) (5,284)
Servicing income, net 1,693 1,504 5,079 4,257
Servicing Assets At Fair Value [Line Items]        
Adjustment for loan repurchased (20) 9 (148) (107)
Repurchase Loan [Member]        
Servicing Assets At Fair Value [Line Items]        
Adjustment for loan repurchased $ (20) $ (32) $ (148) $ (148)