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Closure and Long-lived Tangible Asset Impairment Charges - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
restaurant
Dec. 31, 2022
USD ($)
restaurant
Dec. 31, 2021
USD ($)
restaurant
Dec. 31, 2020
restaurant
Restructuring Cost and Reserve [Line Items]        
Closure charges $ 1.6 $ 1.7 $ 3.7  
Revision to existing closure reserves   1.3    
Number of restaurants related to prior period closure charge revisions | restaurant     40  
Long-lived tangible asset impairment $ 2.0 $ 1.4 $ 1.7  
IHOP        
Restructuring Cost and Reserve [Line Items]        
Revision to existing closure reserves     1.6  
Number of restaurants related to prior period closure charge revisions | restaurant   40   28
Exit costs   $ 0.4 $ 2.1  
Number of restaurants subject to closure charges | restaurant   3 20  
Number of restaurants subject to asset impairment | restaurant 4 5 5