XML 48 R51.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Introduction and Basis of Reporting (Schedule of Change in Restaurants Counts) (Details) - restaurant
 12 Months Ended
Dec. 25, 2019
Dec. 26, 2018
Dec. 27, 2017
Change in Restaurants Counts [Roll Forward]      
Number of restaurants, beginning of period 1,709 1,735  
Number of restaurants, end of period 1,703 1,709 1,735
Company-owned restaurants      
Change in Restaurants Counts [Roll Forward]      
Number of restaurants, beginning of period 173 178 169
Units opened 0 1 3
Units acquired from franchisees 0 6 10
Units sold to franchisees (105) (8) (4)
Units closed 0 (4) 0
Number of restaurants, end of period 68 173 178
Franchise      
Change in Restaurants Counts [Roll Forward]      
Number of restaurants, beginning of period 1,536 1,557 1,564
Units opened 30 29 36
Units purchased from Company 105 8 4
Units acquired by Company 0 (6) (10)
Units closed (36) (52) (37)
Number of restaurants, end of period 1,635 1,536 1,557