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Operating Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 18, 2015 | Jul. 12, 2014 | Jul. 18, 2015 | Jul. 12, 2014
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,795,864 | $ 1,810,175 | $ 4,108,547 | $ 4,143,902
Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 100.00% | 100.00% | 100.00% | 100.00%
Fuel [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 32,915 | $ 46,411 | $ 67,814 | $ 101,381
Fuel [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 1.80% | 2.60% | 1.70% | 2.50%
Non Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,122,910 | $ 1,131,903 | $ 2,595,622 | $ 2,606,963
Non Perishables [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 62.50% | 62.50% | 63.10% | 62.90%
Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 570,921 | $ 566,828 | $ 1,283,954 | $ 1,285,832
Perishables [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 31.80% | 31.30% | 31.30% | 31.00%
Pharmacy [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 69,118 | $ 65,033 | $ 161,157 | $ 149,726
Pharmacy [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 3.90% | 3.60% | 3.90% | 3.60%

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