Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Recent Accounting Pronouncements (Details)

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Basis of Presentation and Recent Accounting Pronouncements (Details)
3 Months Ended 4 Months Ended 9 Months Ended
Oct. 05, 2014
Jul. 13, 2014
Oct. 06, 2013
Jul. 14, 2013
Apr. 20, 2014
Apr. 21, 2013
Oct. 05, 2014
segment
Oct. 06, 2013
Franchisor Disclosure [Line Items]                
Length of fiscal period 84 days 84 days 84 days 84 days 112 days 112 days 280 days 280 days
Number of operating segments             1  
Number of reportable segments             1  
Company-owned operated restaurants
               
Franchisor Disclosure [Line Items]                
Number of restaurants 409           409  
Number of states in which restaurants are located 37           37  
Number of Canadian provinces in which restaurants are located 2           2  
Franchised restaurants
               
Franchisor Disclosure [Line Items]                
Number of restaurants 98           98  
Number of states in which restaurants are located 15           15