SERVICING RIGHTS - Schedule of Servicing Rights (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Transfers and Servicing [Abstract]
Mortgage servicing rights including discontinued operations	$ 2,062	$ 4,953	$ 31,852	$ 42,109	$ 42,833	$ 76,121
SBA servicing rights, at amortized cost	1,807	$ 1,786	1,856	$ 1,725	$ 1,618	$ 1,496
Total	$ 3,869		$ 33,708

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant