Segments (Narrative) (Details)	Sep. 30, 2012 Territories Countries
Applebee's
Franchisor Disclosure [Line Items]
Number of Territories in which Entity Operates	1
Number of Countries in which Entity Operates	15
IHOP
Franchisor Disclosure [Line Items]
Number of Territories in which Entity Operates	2
Number of Countries in which Entity Operates	4
Franchised Units | Applebee's
Franchisor Disclosure [Line Items]
Number of Restaurants	1,954
Franchised Units | IHOP
Franchisor Disclosure [Line Items]
Number of Restaurants	1,548
Company Operated | Applebee's
Franchisor Disclosure [Line Items]
Number of Restaurants	62
Company Operated | IHOP
Franchisor Disclosure [Line Items]
Number of Restaurants	17