Description of Business and Organization - Additional Information (Details)	Mar. 31, 2023 restaurant country
Basis Of Presentation [Line Items]
Number of restaurants in operation	29,956
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 restaurants in operation	5,620
Burger King brand
Basis Of Presentation [Line Items]
Number of restaurants in operation	18,911
Popeyes brand
Basis Of Presentation [Line Items]
Number of restaurants in operation	4,178
Firehouse Subs
Basis Of Presentation [Line Items]
Number of restaurants in operation	1,247