FAIR VALUE - Change in unrealized losses included in earnings (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Net impairement losses on investment securites (credit component)		$ (387)	$ (156)
Available for Sale Securities
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Net impairement losses on investment securites (credit component)	[1]	$ (387)	$ (156)

[1] Amounts mostly related to private label mortgage-backed securities.