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Effect of Largest Customer in Sales (Detail) - Total year to date sales - Customer Concentration Risk | 4 Months Ended
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Apr. 23, 2016 | Apr. 25, 2015
Wal-Mart/Sam's Club |  |
Entity Wide Revenue Major Customer [Line Items] |  |
Concentration risk percentage | 19.10% | 19.40%
DSD Segment |  |
Entity Wide Revenue Major Customer [Line Items] |  |
Concentration risk percentage | 83.00% |
DSD Segment | Wal-Mart/Sam's Club |  |
Entity Wide Revenue Major Customer [Line Items] |  |
Concentration risk percentage | 16.30% | 16.80%
Warehouse Segment |  |
Entity Wide Revenue Major Customer [Line Items] |  |
Concentration risk percentage | 17.00% |
Warehouse Segment | Wal-Mart/Sam's Club |  |
Entity Wide Revenue Major Customer [Line Items] |  |
Concentration risk percentage | 2.80% | 2.60%

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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=51801978&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=49121117&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=51801978&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=49121117&loc=d3e13537-108611 + Details
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