Commitments and Contingencies - Narrative (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	9 Months Ended
	Feb. 28, 2013 Restaurant	Mar. 31, 2014 Restaurant	Sep. 30, 2013
IHOP | Illinois, Wisconsin, Missouri
Loss Contingencies [Line Items]
Number of franchised restaurants, filed for bankruptcy protection (restraurant)	19
Number of restaurants filed for bankruptcy protection likely returned to the company (restraurant)		2
Noncash charge to deferred rental revenue			$ 0.5
Number of Franchised Restaurants Filed For Bankruptcy Protection Still Operated by Franchisee Under Franchise Agreement	17
Applebee's | Property Lease Guarantee
Loss Contingencies [Line Items]
Potential liability for guaranteed leases		$ 405.1