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Operating Segment Information - Summary of Sales by Type of Similar Products and Services (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Oct. 04, 2014 | Oct. 12, 2013 | Oct. 04, 2014 | Oct. 12, 2013
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 1,809,571 | $ 630,088 | $ 5,953,473 | $ 2,061,491
Percentage Consolidated Net Sale | 100.00% | 100.00% | 100.00% | 100.00%
Fuel [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 42,458 | 43,300 | 143,839 | 145,122
Percentage Consolidated Net Sale | 2.30% | 6.90% | 2.40% | 7.10%
Non Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 1,146,410 | 312,038 | 3,753,373 | 1,012,545
Percentage Consolidated Net Sale | 63.40% | 49.50% | 63.10% | 49.10%
Perishables [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | 554,970 | 223,841 | 1,840,802 | 740,582
Percentage Consolidated Net Sale | 30.70% | 35.50% | 30.90% | 35.90%
Pharmacy [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Net sales | $ 65,733 | $ 50,909 | $ 215,459 | $ 163,242
Percentage Consolidated Net Sale | 3.60% | 8.10% | 3.60% | 7.90%

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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