RESTRUCTURING-RELATED ACTIVITIES - Estimated Cost (Details) - USD ($) $ in Thousands	Apr. 01, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Total Estimated Amount Expected to be Incurred	$ 6,999	$ 0
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Total Estimated Amount Expected to be Incurred	4,074
Inventory adjustments
Restructuring Cost and Reserve [Line Items]
Total Estimated Amount Expected to be Incurred	472
Asset impairments
Restructuring Cost and Reserve [Line Items]
Total Estimated Amount Expected to be Incurred	470
Other
Restructuring Cost and Reserve [Line Items]
Total Estimated Amount Expected to be Incurred	$ 1,983