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PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 03, 2021
Dec. 29, 2019
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life, property, plant and equipment   10 years
Reduction in depreciation property, plant and equipment $ 8.5  
Contractual purchase obligations outstanding 17.5 $ 21.2
Forecast    
Disclosure of detailed information about property, plant and equipment [line items]    
Reduction in depreciation property, plant and equipment 17.0  
Manufacturing equipment    
Disclosure of detailed information about property, plant and equipment [line items]    
Reduction in depreciation property, plant and equipment $ 1.0  
Bottom of range [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life, property, plant and equipment 15 years  
Top of range [member] | Manufacturing equipment    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful life, property, plant and equipment 20 years