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SERVICING RIGHTS - Schedule of Servicing Rights (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Dec. 31, 2013
Transfers and Servicing [Abstract]            
Mortgage servicing rights, at fair value $ 40,837 $ 34,198 $ 19,082 $ 11,376 $ 9,816 $ 13,535
SBA servicing rights, at cost 809 $ 744 484 $ 369 $ 375 $ 348
Total $ 41,646   $ 19,566