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Reporting Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 15, 2017 | Jul. 16, 2016 | Jul. 15, 2017 | Jul. 16, 2016
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,894,709 | $ 1,827,562 | $ 4,297,213 | $ 4,106,332
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 | $ 29,709 | $ 29,148 | $ 65,531 | $ 56,302
Fuel [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 1.60% | 1.60% | 1.50% | 1.40%
Center Store [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 1,130,910 | $ 1,134,822 | $ 2,597,127 | $ 2,587,398
Center Store [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 59.70% | 62.10% | 60.40% | 63.00%
Fresh [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 653,735 | $ 582,697 | $ 1,443,840 | $ 1,277,147
Fresh [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 34.50% | 31.90% | 33.60% | 31.10%
Pharmacy [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales | $ 80,355 | $ 80,895 | $ 190,715 | $ 185,485
Pharmacy [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Consolidated net sales, Percentage | 4.20% | 4.40% | 4.50% | 4.50%

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