RESTRUCTURING (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Costs [Abstract]
Total restructuring expense	$ 1,362	$ 0	$ 11,095	$ 0
Severance and related benefits
Restructuring Costs [Abstract]
Restructuring charges			10,695
Non-cash charges			400
Total restructuring expense			11,095
Restructuring Reserve [Roll Forward]
Beginning balance			0
Restructuring charges			10,695
Cash payments			(7,786)
Effect of foreign currency translation			98
Ending balance	$ 3,007		$ 3,007