Closure and Long-lived Tangible Asset Impairment Charges - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) restaurant	Dec. 31, 2020 USD ($) restaurant	Dec. 31, 2019 USD ($) restaurant
Restructuring Cost and Reserve [Line Items]
Closure charges	$ 3,700	$ 3,000	$ 1,500
Long-lived tangible asset impairment	1,700	22,300	0
Operating lease, impairment loss		15,100
Maximum
Restructuring Cost and Reserve [Line Items]
Long-lived tangible asset impairment per asset		1,300
Minimum
Restructuring Cost and Reserve [Line Items]
Long-lived tangible asset impairment per asset		5
Land, Building, Leasehold Improvements And Finance Leases
Restructuring Cost and Reserve [Line Items]
Operating lease, impairment loss		7,200
IHOP and Applebee's
Restructuring Cost and Reserve [Line Items]
Closure charges			$ 500
IHOP
Restructuring Cost and Reserve [Line Items]
Closure charges		$ 1,600
Exit costs	$ 2,100
Number of restaurants related to exit costs | restaurant	20
Revision to existing closure reserves	$ 1,600
Number of restaurants related to prior period closure charge revisions | restaurant	28
Number of restaurants subject to closure charges | restaurant		7	2
Number of restaurants subject to asset impairment | restaurant	5
IHOP | Franchised
Restructuring Cost and Reserve [Line Items]
Number of restaurants subject to asset impairment | restaurant		41
Applebee's
Restructuring Cost and Reserve [Line Items]
Number of restaurants subject to closure charges | restaurant			1
Applebee's | Entity Operated Units
Restructuring Cost and Reserve [Line Items]
Number of restaurants subject to asset impairment | restaurant		29