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RESTRUCTURING (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Oct. 03, 2020	Jul. 04, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019	Jan. 02, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5,713		$ 6,979	$ 25,620	$ 24,483
NWF 2.0
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5,713		$ 6,979	25,620	$ 13,678
Minimum | NWF 2.0
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges	50,000			50,000
Maximum | NWF 2.0
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges	$ 70,000			$ 70,000
Forecast | NWF 2.0
Restructuring Cost and Reserve [Line Items]
Restructuring charges						$ 33,000
COVID-19
Restructuring Cost and Reserve [Line Items]
Percent reduction in cash fees		20.00%

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