Commitments and Contingencies - Narrative (Details) - Applebee's - Property Lease Guarantee $ in Millions	Mar. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Potential liability for guaranteed leases	$ 300.6
Potential liability for guaranteed leases excluding unexercised option periods	$ 50.0

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant