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Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
May 30, 2019
Store
Jul. 13, 2019
USD ($)
Employer
Jul. 13, 2019
USD ($)
Store
Retailer
Employer
Dec. 29, 2018
USD ($)
Loss Contingencies [Line Items]        
Number of independent retailer for unearned advanced amount | Retailer     1  
Percent of unearned advanced amount to total assets     2.00%  
Amount of charge resulted in analysis of net realizability of the underlying collateral | $   $ 1,900   $ 32,000
Number of stores rights to acquire | Store     5  
Number of stores rights to acquire assigned to independent retailer | Store 3      
Number of stores acquired | Store 2      
Goodwill | $   $ 181,035 $ 181,035 $ 178,648
Critical and declining zone fund status     Less than 65 percent  
Number of employers contributing to plan | Employer   1 1  
Minimum [Member]        
Loss Contingencies [Line Items]        
Projected insolvent period based on active to inactive participants ratio     15 years  
Maximum [Member]        
Loss Contingencies [Line Items]        
Status or critical and declining zone plans     65.00%  
Projected insolvent period based on active to inactive participants ratio     20 years  
Food Distribution Segment [Member]        
Loss Contingencies [Line Items]        
Goodwill | $   $ 2,400 $ 2,400