RESTRUCTURING ACTIVITIES - Liabilities Recorded For The Restructuring Plan (Details) $ in Thousands	3 Months Ended
	Mar. 26, 2016 USD ($)
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	$ 2,733
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(794)
Ending balance	1,939
Severance
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	1,307
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(657)
Ending balance	650
Other cash restructuring expenses
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	1,426
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(137)
Ending balance	$ 1,289