DEPOSITS (Additional Information) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Banking and Thrift [Abstract]
Demand Deposit Overdrafts Reclassified As Loan	$ 1,300	$ 1,400
Percentage of time deposits over total deposits	9.00%
Interest expense on time deposits of $100,000 or more	$ 3,200	2,200	$ 1,500
Time Deposits [Line Items]
Total deposits	3,577,544	3,263,730
Director and Executive Officer [Member]
Time Deposits [Line Items]
Total deposits	$ 26,700	$ 31,000