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Income Taxes - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
restaurant
Dec. 31, 2021
USD ($)
Oct. 31, 2022
restaurant
Dec. 31, 2020
USD ($)
Income Tax Disclosure [Line Items]          
Effective tax rate 13.00% 29.30% 19.70%    
Valuation allowance $ 4.4 $ 3.5      
Operating loss carryforwards 127.8 37.9      
Tax credit carryforward 7.4 3.4      
Unrecognized tax benefits 3.5 2.1 $ 1.9   $ 2.2
Unrecognized tax benefit changes in next 12 months 0.4        
Unrecognized tax benefits, interest on income taxes accrued 0.9 0.7      
Unrecognized tax benefits, income tax penalties accrued 0.1 $ 0.1      
State and Local Jurisdiction          
Income Tax Disclosure [Line Items]          
Income tax benefit due to income tax settlement $ 15.1        
Entity Operated Units | Applebee's          
Income Tax Disclosure [Line Items]          
Number of restaurants sold | restaurant   69   69