RESTRUCTURING CHARGES (Restructuring Reserve) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Balance at December 31, 2016			$ 0
Restructuring	$ 542	$ 226	1,978	$ 426
Cash expenditures			(373)
Other adjustments to accrual			0
Foreign currency translation adjustment			80
Balance at June 30, 2017	1,685		1,685
Employee termination costs
Restructuring Reserve [Roll Forward]
Restructuring	393		393
Inventory Impairment
Restructuring Reserve [Roll Forward]
Restructuring	0		1,401
Facility related costs
Restructuring Reserve [Roll Forward]
Restructuring	105		115
Other related costs
Restructuring Reserve [Roll Forward]
Restructuring	$ 44		$ 69