ACCUMULATED OTHER COMPREHENSIVE LOSS - Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount	$ (3,084)	$ 2,570	$ (2,210)	$ (3,605)
Tax (provision) benefit attributable to other comprehensive income (loss)	691	(60)	536	74
Other comprehensive income (loss), net of tax	$ (2,393)	$ 2,510	(1,674)	(3,531)
Foreign currency translation adjustments
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount			(2,210)	(2,978)
Tax (provision) benefit attributable to other comprehensive income (loss)			536	(81)
Other comprehensive income (loss), net of tax			(1,674)	(3,059)
Foreign currency hedge
Accumulated Other Comprehensive Loss [Line Items]
Gross Amount			0	(627)
Tax (provision) benefit attributable to other comprehensive income (loss)			0	155
Other comprehensive income (loss), net of tax			$ 0	$ (472)