STOCKHOLDERS' EQUITY (Reclass) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ (5,891)	$ (5,371)
Tax benefit	2,292	2,090
Total, net of tax	(3,599)	(3,281)
Unrecognized Net Periodic Benefit Costs
Significant reclassifications out of accumulated other comprehensive loss by component
Total, net of tax	(3,599)	(3,281)
Amortization of net actuarial loss
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	(3,766)	(3,035)
Amortization of prior service credit
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	142	142
Pension settlement expense
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ (2,267)	$ (2,478)