RESTRUCTURING ACTIVITIES - Liabilities Recorded For The Restructuring Plan (Details) $ in Thousands	9 Months Ended
	Sep. 24, 2016 USD ($)
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	$ 2,733
Recognized Restructuring Expense	4,447
Costs Paid or Otherwise Settled	(4,430)
Ending balance	2,750
Severance
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	1,307
Recognized Restructuring Expense	1,449
Costs Paid or Otherwise Settled	(1,431)
Ending balance	1,325
Other cash restructuring expenses
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	1,426
Recognized Restructuring Expense	2,998
Costs Paid or Otherwise Settled	(2,999)
Ending balance	$ 1,425