The Company (Details)	Dec. 31, 2017 Restaurant Country restaurant_concept state Territory
Franchisor Disclosure [Line Items]
Number of restaurant concepts | restaurant_concept	2
IHOP
Franchisor Disclosure [Line Items]
Number of restaurants	1,786
Number of states in which entity operates | state	50
Number of territories in which entity operates | Territory	3
Number of countries in which entity operates | Country	13
IHOP | Franchised
Franchisor Disclosure [Line Items]
Number of restaurants	1,622
IHOP | Licensing Agreements
Franchisor Disclosure [Line Items]
Number of restaurants	164
Applebee's
Franchisor Disclosure [Line Items]
Number of restaurants	1,936
Number of states in which entity operates | state	50
Number of territories in which entity operates | Territory	2
Number of countries in which entity operates | Country	15
Applebee's | Franchised
Franchisor Disclosure [Line Items]
Number of restaurants	1,936