OTHER COMPREHENSIVE INCOME (LOSS) (Net Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (1,297)	$ (823)
Other comprehensive income before reclassification, net of tax	6,423	2,793
Reclassifications from accumulated other comprehensive income, net of tax	(893)	176
Total other comprehensive income (loss)	5,530	2,969
Ending Balance	4,233	2,146
Unrealized Gains (Losses) on Investments Available-for-Sale
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	6,566	8,078
Other comprehensive income before reclassification, net of tax	6,423	2,793
Reclassifications from accumulated other comprehensive income, net of tax	(1,064)	0
Total other comprehensive income (loss)	5,359	2,793
Ending Balance	11,925	10,871
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(7,863)	(8,901)
Other comprehensive income before reclassification, net of tax	0	0
Reclassifications from accumulated other comprehensive income, net of tax	171	176
Total other comprehensive income (loss)	171	176
Ending Balance	$ (7,692)	$ (8,725)