OTHER COMPREHENSIVE INCOME (LOSS) (Net Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (1,297)	$ (823)
Other comprehensive income before reclassification, net of tax			7,990	(100)
Reclassifications from accumulated other comprehensive income, net of tax			(807)	331
Total other comprehensive income (loss)	$ 1,653	$ (2,738)	7,183	231
Ending Balance	5,886	(592)	5,886	(592)
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			7,990	(100)
Reclassifications from accumulated other comprehensive income, net of tax			(1,154)	0
Total other comprehensive income (loss)			6,836	(100)
Ending Balance	13,402	7,978	13,402	7,978
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			347	331
Total other comprehensive income (loss)			347	331
Ending Balance	$ (7,516)	$ (8,570)	$ (7,516)	$ (8,570)