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Effect of Largest Customer in Sales (Detail) - Total year to date sales - Customer Concentration Risk | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 16, 2016 | Jul. 18, 2015 | Jul. 16, 2016 | Jul. 18, 2015
Wal-Mart/Sam's Club |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage | 20.20% | 19.70% | 19.60% | 19.50%
DSD Segment |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage |  |  | 84.00% |
DSD Segment | Wal-Mart/Sam's Club |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage | 17.60% | 17.20% | 16.90% | 17.00%
Warehouse Segment |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage |  |  | 16.00% |
Warehouse Segment | Wal-Mart/Sam's Club |  |  |  |
Entity Wide Revenue Major Customer [Line Items] |  |  |  |
Concentration risk percentage | 2.60% | 2.50% | 2.70% | 2.50%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 + Details
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