ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income
Balance at the beginning of the period	$ (10,262)	$ 622	$ (5,683)	$ 624
Unrealized loss on cash flow hedges	(9)	(148)	(160)	(215)
Amounts reclassified from AOCI	50	59	101	117
Foreign currency translation gain/ (loss)	917	(332)	(3,562)	(325)
Balance at the end of the period	(9,304)	201	(9,304)	201
Defined Benefit Plan Liability
Accumulated Other Comprehensive Income
Balance at the beginning of the period	(853)	(190)	(853)	(190)
Balance at the end of the period	(853)	(190)	(853)	(190)
Cash Flow Hedges
Accumulated Other Comprehensive Income
Balance at the beginning of the period	(102)	32	(2)	41
Unrealized loss on cash flow hedges	(9)	(148)	(160)	(215)
Amounts reclassified from AOCI	50	59	101	117
Balance at the end of the period	(61)	(57)	(61)	(57)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income
Balance at the beginning of the period	(9,307)	780	(4,828)	773
Foreign currency translation gain/ (loss)	917	(332)	(3,562)	(325)
Balance at the end of the period	$ (8,390)	$ 448	$ (8,390)	$ 448