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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 3 Months Ended 4 Months Ended 12 Months Ended
Dec. 28, 2013
Oct. 05, 2013
Jul. 13, 2013
Dec. 29, 2012
Oct. 06, 2012
Jul. 14, 2012
Apr. 20, 2013
Apr. 21, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Significant Accounting Policies [Line Items]                      
Sales $ 843,550,000 $ 878,492,000 $ 898,153,000 $ 749,442,000 $ 717,282,000 $ 681,561,000 $ 1,130,810,000 $ 898,206,000 $ 3,751,005,000 $ 3,046,491,000 $ 2,773,356,000
Inventory 100,851,000     91,010,000         100,851,000 91,010,000  
Deferred gain on sale of assets held for sale 22,400,000     17,300,000         22,400,000 17,300,000  
Net gain on sale of territories                 5,500,000 2,600,000 2,400,000
Shipping costs                 815,800,000 675,600,000 630,100,000
Equipment held under capital leases 22,500,000     15,600,000         22,500,000 15,600,000  
Total accumulated depreciation for assets held under capital leases 7,000,000     5,600,000         7,000,000 5,600,000  
Depreciation expense                 106,700,000 93,400,000 87,500,000
Advertising and marketing costs                 28,100,000 19,100,000 16,800,000
Amortization expense of capitalized software development costs                 3,200,000 1,600,000 1,400,000
Capitalized software development costs 14,800,000     7,500,000         14,800,000 7,500,000  
Plan asset amortization conditional percentage                 10.00%    
Pay By Scan
                      
Significant Accounting Policies [Line Items]                      
Sales                 1,116,400,000 863,400,000 821,000,000
Inventory 6,400,000     5,600,000         6,400,000 5,600,000  
Maximum
                      
Significant Accounting Policies [Line Items]                      
Percentage of distributor route notes receivables                 10.00%    
Gain on sale of territories recognized immediately                 $ 5,000    
Maximum | Building
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 40 years    
Maximum | Machinery and Equipment
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 25 years    
Maximum | Furniture Fixtures And Transportation Equipment
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 15 years    
Maximum | Capitalized Software Development Costs
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 8 years    
Maximum | Sale of Territory
                      
Significant Accounting Policies [Line Items]                      
Notes receivable maturity period                 10 years    
Minimum | Building
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 10 years    
Minimum | Machinery and Equipment
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 3 years    
Minimum | Furniture Fixtures And Transportation Equipment
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 3 years    
Minimum | Capitalized Software Development Costs
                      
Significant Accounting Policies [Line Items]                      
Estimated useful life, years                 3 years    
Top 10 Customers | Sales Revenue, Net
                      
Significant Accounting Policies [Line Items]                      
Percentage of sales                 43.50% 45.10% 45.60%