Basis of Presentation - Additional Information (Detail)	Mar. 28, 2018 Location restaurant Country
Franchisor Disclosure [Line Items]
Number of restaurants	1,686
Number of foreign countries in which entity operates | Country	31
Number of U.S. territories in which entity operates | Location	2
Entity Operated Units [Member]
Franchisor Disclosure [Line Items]
Number of restaurants	997
Franchised Units [Member]
Franchisor Disclosure [Line Items]
Number of restaurants	689