Other Intangible Assets - (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) Restaurant	Dec. 31, 2018 USD ($) Restaurant	Dec. 31, 2017 USD ($) Restaurant	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 92,900	$ 104,200		$ 2,400
Amortization expense 2019	11,000
Amortization expense 2020	10,500
Amortization expense 2021	10,500
Amortization expense 2022	10,500
Amortization expense 2023	$ 10,500
Weighted average life of intangible assets subject to amortization	18 years 6 months	20 years
Impairment			$ 173,400
Income tax benefit	$ (34,127)	$ (30,254)	$ 85,559
Applebee's
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | Restaurant	1,787
IHOP
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | Restaurant	1,841
Entity Operated Units | Applebee's
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | Restaurant	69	69
Franchised | Applebee's
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | Restaurant	1,718
Franchised | IHOP
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | Restaurant	1,680
Number of restaurants refranchised | Restaurant			9
Reacquired Franchise Rights | Subject to Amortization
Finite-Lived Intangible Assets [Line Items]
Additions		$ 11,600
Intangible assets, net	$ 9,800	$ 11,500	$ 0		$ 0
Tradename | Not Subject to Amortization
Finite-Lived Intangible Assets [Line Items]
Impairment			$ 173,400
Income tax benefit	$ 65,100