ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Changes in accumulated other comprehensive loss components
Balance, as of December 31, 2012	$ (24,880)
Other comprehensive income (loss) before reclassifications	(3,121)
Amounts reclassified from accumulated other comprehensive income (loss)	2,739
Balance, as of September 30, 2013	(25,262)
Foreign Currency Translation Adjustment
Changes in accumulated other comprehensive loss components
Balance, as of December 31, 2012	21,078
Other comprehensive income (loss) before reclassifications	(3,164)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Balance, as of September 30, 2013	17,914
Pension and Other Post- Retirement Liability Adjustment
Changes in accumulated other comprehensive loss components
Balance, as of December 31, 2012	(45,958)
Other comprehensive income (loss) before reclassifications	43
Amounts reclassified from accumulated other comprehensive income (loss)	2,739
Balance, as of September 30, 2013	$ (43,176)