RESTRUCTURING ACTIVITIES - Liabilities Recorded For The Restructuring Plan (Details) $ in Thousands	6 Months Ended
	Jun. 29, 2019 USD ($)
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	$ 10,056
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(4,743)
Ending balance	5,313
Severance
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	6,594
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(2,885)
Ending balance	3,709
Other cash restructuring expenses
Restructuring Cost and Reserve [Roll Forward]
Beginning balance	3,462
Recognized Restructuring Expense	0
Costs Paid or Otherwise Settled	(1,858)
Ending balance	$ 1,604