LOAN PORTFOLIO - Activity for Specific Reserve (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Specific Reserve:
Balance at beginning of period	$ 52,581	$ 55,205
Provision for loan losses	37,266	18,650
Charge-offs	(8,352)	(11,715)
Balance at end of period	$ 81,495	$ 62,140