RESTRUCTURING ACTIVITIES - Liabilities Recorded For The Restructuring Plan (Details) $ in Thousands	9 Months Ended
	Sep. 26, 2020 USD ($)
Restructuring Cost and Reserve [Roll Forward]
Recognized Restructuring Expense	$ 5,678
Costs Paid or Otherwise Settled	4,875
Balance at September 26, 2020	803
Severance
Restructuring Cost and Reserve [Roll Forward]
Recognized Restructuring Expense	1,984
Costs Paid or Otherwise Settled	1,984
Balance at September 26, 2020	0
Other cash restructuring expenses
Restructuring Cost and Reserve [Roll Forward]
Recognized Restructuring Expense	3,694
Costs Paid or Otherwise Settled	2,891
Balance at September 26, 2020	$ 803