Other Intangible Assets - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) restaurant	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) restaurant
Finite-Lived Intangible Assets [Line Items]
Amortization expense 2022	$ 10.7
Amortization expense 2023	10.7
Amortization expense 2024	10.7
Amortization expense 2025	10.7
Amortization expense 2026	10.7
Tradename
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, indefinite-lived (excluding goodwill)		$ 11.0
Reacquired Franchise Rights
Finite-Lived Intangible Assets [Line Items]
Additions	0.0	0.0	$ 0.0	$ 11.6
Impairment of intangible assets, finite-lived		3.3
Favorable leaseholds
Finite-Lived Intangible Assets [Line Items]
Additions	$ 0.0	0.0	$ 0.5
Impairment of intangible assets, finite-lived		0.8
Applebee's
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | restaurant	1,680
Applebee's | Tradename
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, indefinite-lived (excluding goodwill)		11.0
Applebee's | Reacquired Franchise Rights
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived		3.3
Applebee's | Favorable leaseholds
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived		$ 0.8
Entity Operated Units | Applebee's
Finite-Lived Intangible Assets [Line Items]
Number of restaurants | restaurant	69			69