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Percentage of Sales from Largest Customers (Detail) (Sales Revenue, Net, Wal-Mart/Sam's Club)
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Revenue, Major Customer [Line Items]      
Percentage of sales, Total 20.10% 20.70% 21.60%
DSD
     
Revenue, Major Customer [Line Items]      
Percentage of sales, Total 17.00% 17.50% 17.80%
Warehouse
     
Revenue, Major Customer [Line Items]      
Percentage of sales, Total 3.10% 3.20% 3.80%