Basis of Presentation and Summary of Significant Accounting Policies - Components of Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Total current restricted cash	$ 47.5	$ 39.9
Securitized debt reserves
Restricted Cash and Cash Equivalents Items [Line Items]
Total current restricted cash	29.9	27.0
Applebee's advertising funds
Restricted Cash and Cash Equivalents Items [Line Items]
Total current restricted cash	17.5	12.8
Other
Restricted Cash and Cash Equivalents Items [Line Items]
Total current restricted cash	$ 0.1	$ 0.1