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Summary of Significant Accounting Policies (PPE) (Details) - USD ($)
12 Months Ended
Dec. 27, 2016
Dec. 29, 2015
Dec. 30, 2014
Property and Equipment      
Repairs and maintenance expense $ 22,400,000 $ 20,600,000 $ 17,900,000
Impairment of Goodwill      
Impairment of goodwill 0 0 600,000
Impairment or Disposal of Long-Lived Assets      
Maximum threshold amount considered for impairment $ 300,000    
Impairment analysis, estimated useful life of operating a restaurant 20 years    
Impairment of restaurant $ 0 $ 0 $ 0
Land improvements | Minimum      
Property and Equipment      
Estimated useful life 10 years    
Land improvements | Maximum      
Property and Equipment      
Estimated useful life 25 years    
Buildings and leasehold improvements | Minimum      
Property and Equipment      
Estimated useful life 10 years    
Buildings and leasehold improvements | Maximum      
Property and Equipment      
Estimated useful life 25 years    
Equipment and smallwares | Minimum      
Property and Equipment      
Estimated useful life 3 years    
Equipment and smallwares | Maximum      
Property and Equipment      
Estimated useful life 10 years    
Furniture and fixtures | Minimum      
Property and Equipment      
Estimated useful life 3 years    
Furniture and fixtures | Maximum      
Property and Equipment      
Estimated useful life 10 years