ACCUMULATED OTHER COMPREHENSIVE LOSS - Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount	$ (9,476)	$ 2,088
Tax (provision) benefit attributable to other comprehensive income (loss)	(185)	(69)
Other comprehensive income (loss), net of tax	(9,661)	2,019
Foreign currency translation adjustments
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount	(9,741)	1,809
Tax (provision) benefit attributable to other comprehensive income (loss)	(120)	0
Other comprehensive income (loss), net of tax	(9,861)	1,809
Foreign Currency Hedge
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount	265	279
Tax (provision) benefit attributable to other comprehensive income (loss)	(65)	(69)
Other comprehensive income (loss), net of tax	$ 200	$ 210