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Segment Reporting Additional Information (Details) - segment
12 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Segment Reporting [Abstract]      
Number of reportable segments 3    
Walmart Inc.      
Revenue, Major Customer [Line Items]      
Concentration risk, net sales to Walmart Inc., percentage 22.00% 21.00% 21.00%