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NON CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Changes in Servicing Assets (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Transfers and Servicing [Abstract]        
Balance at beginning of period $ 32,335 $ 26,040 $ 33,071 $ 26,762
Purchase of servicing assets 0 7,781 0 7,781
Capitalization of servicing assets 1,146 1,598 4,046 3,168
Amortization (1,817) (1,594) (5,374) (3,808)
Temporary impairment (charges) recoveries, net 53 (163) 90 (206)
Adjustment for loans repurchased (32) (318) (148) (353)
Balance at end of period $ 31,685 $ 33,344 $ 31,685 $ 33,344