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RESTRUCTURING COSTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
RESTRUCTURING COSTS (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Costs [Abstract]
Total restructuring expense	$ 9,733	$ 0	$ 9,733	$ 0
Severance and related benefits
Restructuring Costs [Abstract]
Restructuring charges			9,525
Non-cash charges			208
Total restructuring expense			9,733
Restructuring Reserve [Roll Forward]
Beginning balance			0
Restructuring charges			9,525
Cash payments			(3,296)
Effect of foreign currency translation			(13)
Ending balance	$ 6,216		$ 6,216