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Franchise Rights (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 28, 2014
Sep. 29, 2013
Dec. 29, 2013
Finite-Lived Intangible Assets [Line Items]          
Franchisee Franchise Arrangements, Franchise Agreement, Renewal Term     20 years    
Finite-lived Intangible Assets [Roll Forward]          
Finite Lived Franchise Rights Net     $ 90,168,000    
Acquisition of restaurants     9,011,000    
Amortization expense, franchise rights     (3,187,000)    
Finite Lived Franchise Rights Net 95,992,000   95,992,000    
Franchise Rights [Member]
         
Finite-Lived Intangible Assets [Line Items]          
Impairment of Intangible Assets (Excluding Goodwill) 0   0   0
Amortization Expense, Expected Full Year 4,300,000   4,300,000    
Next Fiscal Year 4,500,000   4,500,000    
Second Fiscal Year 4,400,000   4,400,000    
Third Fiscal Year 4,400,000   4,400,000    
Fourth Fiscal Year 4,400,000   4,400,000    
Fifth Fiscal Year 4,400,000   4,400,000    
Finite-lived Intangible Assets [Roll Forward]          
Amortization expense, franchise rights $ (1,100,000) $ (1,000,000) $ (3,200,000) $ (3,100,000)