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Operating Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 10, 2015 | Oct. 04, 2014 | Oct. 10, 2015 | Oct. 04, 2014
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,775,401 | $ 1,809,571 | $ 5,883,948 | $ 5,953,473
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 | $ 30,199 | $ 42,458 | $ 98,013 | $ 143,839
Fuel [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 1.70% | 2.30% | 1.70% | 2.40%
Non Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,123,748 | $ 1,146,410 | $ 3,719,370 | $ 3,753,373
Non Perishables [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 63.30% | 63.40% | 63.20% | 63.10%
Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 550,682 | $ 554,970 | $ 1,834,636 | $ 1,840,802
Perishables [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 31.00% | 30.70% | 31.20% | 30.90%
Pharmacy [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 70,772 | $ 65,733 | $ 231,929 | $ 215,459
Pharmacy [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 4.00% | 3.60% | 3.90% | 3.60%

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