DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Effect of Derivative Instruments on Statement of Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Economic undesignated hedges:
Total gain (loss) on derivatives	$ 936	$ 1,871	$ 1,067
Interest Income Loans [Member] | Interest Rate Swap [Member]
Economic undesignated hedges:
Total gain (loss) on derivatives	1,258	1,685	901
Interest Income Loans [Member] | Interest Rate Cap [Member]
Economic undesignated hedges:
Total gain (loss) on derivatives	0	10	0
Mortgage Banking Activities [Member] | Forward Contracts [Member]
Economic undesignated hedges:
Total gain (loss) on derivatives	$ (322)	$ 176	$ 166