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REVENUE - Contract Balances (Details) - USD ($)
Jul. 03, 2021
Jan. 02, 2021
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Contract assets $ 0  
Deferred contract costs 0  
Contract liabilities 9,100,000 $ 9,900,000
Wearable technology    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Contract liabilities 3,600,000 4,600,000
Gift Cards    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Contract liabilities $ 3,900,000 $ 4,200,000