RETIREMENT AND POST RETIREMENT HEALTH CARE PLANS (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Apr. 03, 2021	Mar. 28, 2020	Jan. 02, 2021
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Contribution to defined benefit pension plans	$ 1.2	$ 1.1	$ 8.5
Expected total contribution to defined benefit pension plans	$ 5.8

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration