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Operating Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) (USD $)
In Thousands, unless otherwise specified
 4 Months Ended
Apr. 19, 2014
Apr. 27, 2013
Revenue from External Customer [Line Items]    
Consolidated net sales $ 2,333,727 $ 780,278
Percentage Consolidated Net Sale 100.00% 100.00%
Non Perishables [Member]
    
Revenue from External Customer [Line Items]    
Consolidated net sales 1,475,060 385,426
Percentage Consolidated Net Sale 63.20% 49.40%
Perishables [Member]
    
Revenue from External Customer [Line Items]    
Consolidated net sales 719,004 276,202
Percentage Consolidated Net Sale 30.80% 35.40%
Pharmacy [Member]
    
Revenue from External Customer [Line Items]    
Consolidated net sales 84,693 64,186
Percentage Consolidated Net Sale 3.60% 8.20%
Fuel [Member]
    
Revenue from External Customer [Line Items]    
Consolidated net sales $ 54,970 $ 54,464
Percentage Consolidated Net Sale 2.40% 7.00%