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NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Components of Net Servicing Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Servicing fees $ 7,630 $ 7,606 $ 7,211
Late charges and prepayment penalties 405 674 765
Other [1] (35) (1) (161)
Adjustment To Servicing Assets For Loans Repurchased [2] 395 256 (88)
Servicing income, gross 8,395 8,535 7,727
Amortization and impairment of servicing assets (4,702) (3,554) (3,387)
Servicing income, net $ 3,693 $ 4,981 $ 4,340
[1]
(1) Mainly consisted of compensatory fees imposed by GSEs.
[2]
Amount represents the adjustment to fair value related to the repurchase of loans serviced for others.