ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	$ 12,797
Other comprehensive income before reclassifications	1,133
Amounts reclassified from accumulated other comprehensive income	290
Net increase in other comprehensive income	1,423
Balance as of June 30, 2014	14,220
Accumulated Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	14,952
Other comprehensive income before reclassifications	1,133
Amounts reclassified from accumulated other comprehensive income	0
Net increase in other comprehensive income	1,133
Balance as of June 30, 2014	16,085
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	(2,153)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	(38)
Net increase in other comprehensive income	(38)
Balance as of June 30, 2014	(2,191)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance as of December 31, 2013	(2)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	328
Net increase in other comprehensive income	328
Balance as of June 30, 2014	$ 326