STOCKHOLDERS' EQUITY (Reclass) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ (3,814)	$ (3,763)
Tax benefit	1,483	1,464
Total, net of tax	(2,331)	(2,299)
Unrecognized Net Periodic Benefit Costs
Significant reclassifications out of accumulated other comprehensive loss by component
Total, net of tax	(2,331)	(2,299)
Amortization of net actuarial loss
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	(2,445)	(2,142)
Amortization of prior service credit
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	95	95
Pension settlement expense
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ (1,464)	$ (1,716)