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REVENUE RECOGNITION Contract Liabilities (Details) - USD ($)
$ in Thousands
Mar. 28, 2020
Dec. 28, 2019
Mar. 30, 2019
Revenue from Contract with Customer [Abstract]      
Contract with Customer, Liability, Unredeemed gift cards, Current $ 16,758 $ 17,563 $ 13,724
Unredeemed customer loyalty rewards 4,503 5,615 8,520
Contract with Customer Private label credit card 714 714 714
Total contract liabilities-current $ 21,975 $ 23,892 $ 22,958