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Reporting Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) - USD ($) $ in Thousands | 3 Months Ended | 4 Months Ended | 12 Months Ended
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Dec. 30, 2017 | Oct. 07, 2017 | Jul. 15, 2017 | Dec. 31, 2016 | Oct. 08, 2016 | Jul. 16, 2016 | Apr. 22, 2017 | Apr. 23, 2016 | Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales | $ 1,924,225 | $ 1,906,644 | $ 1,894,709 | $ 1,828,183 | $ 1,800,085 | $ 1,827,562 | $ 2,402,504 | $ 2,278,770 | $ 8,128,082 | $ 7,734,600 | $ 7,651,973
Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales, Percentage |  |  |  |  |  |  |  |  | 100.00% | 100.00% | 100.00%
Fuel [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales |  |  |  |  |  |  |  |  | $ 126,674 | $ 110,619 | $ 122,004
Fuel [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales, Percentage |  |  |  |  |  |  |  |  | 1.60% | 1.40% | 1.60%
Center Store [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales |  |  |  |  |  |  |  |  | $ 4,877,289 | $ 4,908,142 | $ 4,845,763
Center Store [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales, Percentage |  |  |  |  |  |  |  |  | 60.00% | 63.50% | 63.30%
Fresh [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales |  |  |  |  |  |  |  |  | $ 2,771,942 | $ 2,359,829 | $ 2,373,829
Fresh [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales, Percentage |  |  |  |  |  |  |  |  | 34.10% | 30.50% | 31.00%
Pharmacy [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales |  |  |  |  |  |  |  |  | $ 352,177 | $ 356,010 | $ 310,377
Pharmacy [Member] | Sales Revenue [Member] | Product Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated net sales, Percentage |  |  |  |  |  |  |  |  | 4.30% | 4.60% | 4.10%

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