OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification Adjustments Out of Accumulated Other Comprehensive Income) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Unrealized gains/(losses) on investments available-for-sale Affected line item in the Statements of Income:
Investment securities gains		$ 1,769	$ 0
Income before taxes		1,769	0
Tax expense		705	0
Net income		1,064	0
Amortization of defined benefit pension plan items Affected line item in the Statements of Income:
Recognized actuarial loss	[1]	284	292
Income before taxes		284	292
Tax expense		113	116
Net income		$ 171	$ 176

[1] This amount is included in the computation of net periodic benefit cost, see Note 9.