Closure and Other Impairment Charges (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Restaurant	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Closure charges	$ 2,000	$ 3,900	$ 1,200
Business exit costs	0	0	2,900
Long-lived tangible asset impairment	100	100	1,000
Total closure and impairment charges	2,107	3,968	5,092
Facility Costs
Restructuring Cost and Reserve [Line Items]
Business exit costs		2,900
Contract Termination
Restructuring Cost and Reserve [Line Items]
Business exit costs		2,500
Future Lease Payments, Net
Restructuring Cost and Reserve [Line Items]
Business exit costs		400
IHOP
Restructuring Cost and Reserve [Line Items]
Closure charges	$ 1,800	2,200	$ 700
Long-lived tangible asset impairment		$ 600
Number of restaurants with impairments charges | Restaurant		8
Individually Insignificant Restaurants
Restructuring Cost and Reserve [Line Items]
Long-lived tangible asset impairment		$ 400