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Basis of Presentation and Summary of Significant Accounting Policies - Business Segments (Details)
Dec. 31, 2016
restaurant
country
Dec. 26, 2015
restaurant
Franchised Units    
Segment Reporting Information [Line Items]    
Number of restaurants 977 826
Entity Operated Units    
Segment Reporting Information [Line Items]    
Number of restaurants 21 19
Non-US | Franchised Units    
Segment Reporting Information [Line Items]    
Number of countries in which the entity operates | country 5  
Number of restaurants 76