Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill (Details) $ in Thousands	3 Months Ended	12 Months Ended
Goodwill (Details) $ in Thousands	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) Restaurant	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Goodwill [Line Items]
Goodwill	$ 339,236	$ 345,314	$ 339,236	$ 697,400	$ 697,400
Goodwill, impairment loss	358,200		358,200
Applebee's
Goodwill [Line Items]
Number of restaurants \| Restaurant		1,837
Goodwill, impairment loss		$ 358,200
Entity Operated Units \| Applebee's
Goodwill [Line Items]
Number of restaurants \| Restaurant		69
Goodwill	$ 0	$ 6,100	0	$ 0	$ 0
Goodwill, impairment loss			$ 0