OTHER COMPREHENSIVE INCOME (LOSS) (Net Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (1,297)	$ (823)
Other comprehensive income before reclassification, net of tax			6,385	2,144
Reclassifications from accumulated other comprehensive income, net of tax			(623)	480
Total other comprehensive income (loss)	$ (1,421)	$ 2,393	5,762	2,624
Ending Balance	4,465	1,801	4,465	1,801
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			6,385	2,144
Reclassifications from accumulated other comprehensive income, net of tax			(1,154)	12
Total other comprehensive income (loss)			5,231	2,156
Ending Balance	11,797	10,234	11,797	10,234
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			531	468
Total other comprehensive income (loss)			531	468
Ending Balance	$ (7,332)	$ (8,433)	$ (7,332)	$ (8,433)