DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Instruments on Statement of Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Economic undesignated hedges:
Total gain (loss) on derivatives	$ (35)	$ 224	$ 272	$ (19)
Interest Rate Cap [Member]
Economic undesignated hedges:
Total gain (loss) on derivatives	(1)	5	(2)	(2)
Mortgage Banking Activities [Member] | Forward Contracts [Member]
Economic undesignated hedges:
Total gain (loss) on derivatives	$ (34)	$ 219	$ 274	$ (17)