ACCUMULATED OTHER COMPREHENSIVE LOSS - Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gross Amount			$ 2,807	$ (5,594)
Tax Effect	$ (167)	$ (432)	(1,318)	554
Net Amount			1,489	(5,040)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gross Amount			3,050	(6,899)
Tax Effect			(1,414)	1,036
Net Amount			1,636	(5,863)
Foreign currency hedge
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gross Amount			(243)	1,305
Tax Effect			96	(482)
Net Amount			$ (147)	$ 823