Description of Business and Organization - Additional Information (Detail)	Jun. 30, 2017 Country Restaurants
Basis Of Presentation [Line Items]
Number of restaurants in operation	23,423
Number of countries in which company and franchise restaurants operated | Country	100
Percentage of franchised Tim Hortons and Burger King restaurants	100.00%
Tim Hortons
Basis Of Presentation [Line Items]
Number of restaurants in operation	4,655
Burger King
Basis Of Presentation [Line Items]
Number of restaurants in operation	16,000
Popeyes
Basis Of Presentation [Line Items]
Number of restaurants in operation	2,768