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Acquisitions - Additional Information (Detail) - USD ($) |  |  | 4 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 05, 2018 | Jan. 06, 2017 | Apr. 22, 2017 | Apr. 21, 2018 | Dec. 30, 2017
Business Acquisition [Line Items] |  |  |  |  |
Payments to acquire certain assets and assume liabilities in cash |  |  | $ 214,595,000 |  |
Goodwill |  |  |  | $ 178,648,000 | $ 178,648,000
Food Distribution Segment [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  | $ 46,300,000 |  |  |
Caito Foods Service and Blue Ribbon Transport [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Payments to acquire certain assets and assume liabilities in cash |  | 214,600,000 |  |  |
Business combination, cash acquired |  | 2,500,000 |  |  |
Increase in goodwill, due to updated valuation of long-lived assets | $ 1,300,000 |  |  |  |
Business combination, property and equipment acquired |  | 76,700,000 |  |  |
Business combination, Intangible assets acquired |  | $ 72,900,000 |  |  |
Amortization of intangible assets, period |  | 15 years |  |  |
Earn-out opportunities potential to pay sellers |  | $ 27,400,000 |  | $ 3,400,000 |
Business combination, contingent consideration liability maximum reimbursement initial purchase price |  | $ 15,000,000 |  |  |

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