BUSINESS COMBINATION- Business Combination (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Liabilities [Abstract]
Business Combination Bargain Purchase Gain Recognized Amount	$ 0	$ 0	$ 0	$ 13,443
Deposits [Member]
Liabilities [Abstract]
Liabilities Assumed1			0	523,517
Core Deposits [Member]
Assets [Abstract]
Fair Value Of Assets Acquired			0	5,820
Property Plant And Equipment [Member]
Assets [Abstract]
Fair Value Of Assets Acquired			0	5,450
Loans [Member]
Assets [Abstract]
Fair Value Of Assets Acquired			$ 0	$ 311,410