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Acquisitions - Additional Information (Detail)
 12 Months Ended
Jan. 06, 2017
USD ($)
ft²
State
Dec. 30, 2017
USD ($)
Jan. 02, 2016
USD ($)
Dec. 31, 2016
USD ($)
Jun. 16, 2015
USD ($)
Store
Business Acquisition [Line Items]          
Payments to acquire certain assets and assume liabilities in cash   $ 226,939,000 $ 41,517,000    
Goodwill   178,648,000 $ 322,902,000 $ 322,686,000  
Food Distribution Segment [Member]          
Business Acquisition [Line Items]          
Increase in goodwill, due to updated valuation of long-lived assets $ 1,300,000        
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        
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        
Total acquisition-related costs incurred   4,900,000      
Acquisition related costs incurred and recorded in merger/acquisition and integration expense during period   $ 2,700,000      
Caito Foods Service [Member]          
Business Acquisition [Line Items]          
Service distributors across number of states | State 21        
Area of new Fresh Kitchen facility | ft² 118,000        
Dan's [Member]          
Business Acquisition [Line Items]          
Total purchase price of assets         $ 32,600,000
Number of stores acquired | Store         6