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Sales by Product Category in Each Reportable Segment (Detail) - USD ($) $ in Thousands | 4 Months Ended
--- | ---
Apr. 22, 2017 | Apr. 23, 2016
Segment Reporting Information [Line Items] |  |
Sales | $ 1,187,649 | $ 1,204,352
DSD Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 999,860 | 999,003
Warehouse Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 187,789 | 205,349
Branded Retail |  |
Segment Reporting Information [Line Items] |  |
Sales | 693,578 | 700,380
Branded Retail | DSD Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 646,103 | 642,058
Branded Retail | Warehouse Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 47,475 | 58,322
Store Branded Retail |  |
Segment Reporting Information [Line Items] |  |
Sales | 172,024 | 171,246
Store Branded Retail | DSD Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 137,524 | 132,984
Store Branded Retail | Warehouse Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 34,500 | 38,262
Non-Retail and Other |  |
Segment Reporting Information [Line Items] |  |
Sales | 322,047 | 332,726
Non-Retail and Other | DSD Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | 216,233 | 223,961
Non-Retail and Other | Warehouse Segment |  |
Segment Reporting Information [Line Items] |  |
Sales | $ 105,814 | $ 108,765

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