OTHER NON- INTEREST EXPENSES- Detail of other non-interest expenses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Non Interest Expenses [Abstract]
Supplies and printing	$ 1,990	$ 1,502	$ 3,101
Reserve (release) for off-balance sheet exposures	(928)	1,173	261
Other	7,203	8,022	8,152
Amortization Of Intangible Assets	4,403	4,896	5,143
Information Technology And Data Processing	4,421	4,604	4,817
Losses On Sales Of Non Real Estate	253	689	755
Total	$ 17,342	$ 20,886	$ 22,229