Segments - Narrative (Details)	3 Months Ended
	Mar. 31, 2019 Restaurant Country segment Territory
Franchisor Disclosure [Line Items]
Number of segments (segment) | segment	5
Applebee's
Franchisor Disclosure [Line Items]
Number of territories in which entity operates (territory) | Territory	2
Number of countries in which entity operates (country) | Country	13
IHOP
Franchisor Disclosure [Line Items]
Number of territories in which entity operates (territory) | Territory	3
Number of countries in which entity operates (country) | Country	12
Franchised Units | Applebee's
Franchisor Disclosure [Line Items]
Number of restaurants (restaurant) | Restaurant	1,761
Franchised Units | IHOP
Franchisor Disclosure [Line Items]
Number of restaurants (restaurant) | Restaurant	1,822