CREDIT QUALITY ASSESSMENT (Summary Information on Allowance for Loan and Lease Loss Activity) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Credit Quality Assessment [Abstract]
Balance at beginning of year			$ 40,895	$ 37,802	$ 37,802
Provision (credit) for loan and lease losses	$ 2,957	$ 1,218	4,193	1,815	5,371
Loan and lease charge-offs			(2,272)	(1,837)	(3,795)
Loan and lease recoveries			568	933	1,517
Net charge-offs			(1,704)	(904)	(2,278)
Balance at period end	$ 43,384	$ 38,713	$ 43,384	$ 38,713	$ 40,895