RESTRUCTURING (Liability Incurred for Restructuring Plan) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 03, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019
Restructuring Reserve
Charges	$ 5,713	$ 6,979	$ 25,620	$ 24,483
NWF 2.0
Restructuring Reserve
Beginning balance	7,254	4,502	7,084	0
Charges	5,713	6,979	25,620	13,678
Cash Payments	7,685	4,048	26,013	6,245
Non-cash Items	512		1,921
Ending balance	4,770	7,433	4,770	7,433
NWF 2.0 \| Store closures
Restructuring Reserve
Beginning balance	583		22
Charges	731		3,424
Cash Payments	802		1,525
Non-cash Items	512		1,921
Ending balance	0		0
NWF 2.0 \| Professional services
Restructuring Reserve
Beginning balance	323	730	2,824	0
Charges	515	2,411	5,177	5,049
Cash Payments	456	962	7,619	2,870
Non-cash Items	0		0
Ending balance	382	2,179	382	2,179
NWF 2.0 \| Severance and employee-related benefits
Restructuring Reserve
Beginning balance	6,348	3,772	4,238	0
Charges	4,467	4,568	17,019	8,629
Cash Payments	6,427	3,086	16,869	3,375
Non-cash Items	0		0
Ending balance	$ 4,388	$ 5,254	$ 4,388	$ 5,254

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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