Description of Business and Organization - Additional Information (Details)	Jun. 30, 2020 restaurant country
Basis Of Presentation [Line Items]
Number of franchised or owned restaurants	27,059
Number of countries in which company and franchise restaurants operated (more than) | country	100
Percentage of franchised Tim Hortons, Burger King, and Popeyes restaurants	100.00%
Tim Hortons brand
Basis Of Presentation [Line Items]
Number of franchised or owned restaurants	4,934
Burger King brand
Basis Of Presentation [Line Items]
Number of franchised or owned restaurants	18,756
Popeyes brand
Basis Of Presentation [Line Items]
Number of franchised or owned restaurants	3,369