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Subsequent Events - Additional Information (Detail) | Jan. 06, 2017 USD ($) ft² State | Dec. 31, 2016 USD ($) | Jan. 02, 2016 USD ($) | Jan. 03, 2015 USD ($)
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Subsequent Event [Line Items] |  |  |  |
Goodwill |  | $ 322,686,000 | $ 322,902,000 | $ 297,280,000
Subsequent Event [Member] | Food Distribution Segment [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Goodwill | $ 46,000,000 |  |  |
Subsequent Event [Member] | Caito Foods Service and Blue Ribbon Transport [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Payments to acquire certain assets and assume liabilities in cash | 217,600,000 |  |  |
Earn-out opportunities potential to pay sellers | 27,400,000 |  |  |
Business combination, contingent consideration liability maximum reimbursement initial purchase price | $ 15,000,000 |  |  |
Subsequent Event [Member] | Caito Foods Service [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Service distributors across number of states | State | 22 |  |  |
Area of new Fresh Kitchen facility | ft² | 118,000 |  |  |
Fresh Kitchen facility value | $ 32,000,000 |  |  |

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