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Summary of Significant Accounting Policies, PPE (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 25, 2018
Dec. 26, 2017
Property and Equipment      
Repairs and maintenance expense $ 27,900 $ 29,700 $ 25,800
Impairment of Goodwill      
Impairment of goodwill $ 0 $ 0 $ 0
Minimum      
Impairment or Disposal of Long-Lived Assets      
Impairment analysis, estimated useful life of operating a restaurant 20 years    
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    
Furniture, fixtures And equipment | Minimum      
Property and Equipment      
Estimated useful life 3 years    
Furniture, fixtures And equipment | Maximum      
Property and Equipment      
Estimated useful life 10 years