ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ (37,318)
Other comprehensive income before reclassifications	4,049
Amounts reclassified from accumulated other comprehensive income	138
Net current-period other comprehensive income	4,187
Balance	(33,131)
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(14,486)
Other comprehensive income before reclassifications	4,049
Amounts reclassified from accumulated other comprehensive income	0
Net current-period other comprehensive income	4,049
Balance	(10,437)
Pension and Other Post-Retirement Liability Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(22,832)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	138
Net current-period other comprehensive income	138
Balance	$ (22,694)