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Property and Equipment, Net - Summary of Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Property and Equipment [Line Items]    
Property and equipment $ 2,112.2 $ 2,082.4
Less: Accumulated depreciation 1,455.6 1,424.6
Property and equipment, net 656.6 657.8
Land    
Property and Equipment [Line Items]    
Property and equipment 110.2 110.1
Buildings    
Property and Equipment [Line Items]    
Property and equipment $ 46.7 $ 42.7
Buildings | Minimum    
Property and Equipment [Line Items]    
Property and equipment, useful life 15 years 15 years
Buildings | Maximum    
Property and Equipment [Line Items]    
Property and equipment, useful life 35 years 35 years
Advertising structures    
Property and Equipment [Line Items]    
Property and equipment $ 1,738.1 $ 1,716.2
Advertising structures | Minimum    
Property and Equipment [Line Items]    
Property and equipment, useful life 3 years 3 years
Advertising structures | Maximum    
Property and Equipment [Line Items]    
Property and equipment, useful life 20 years 20 years
Furniture, equipment and other    
Property and Equipment [Line Items]    
Property and equipment $ 181.1 $ 173.9
Furniture, equipment and other | Minimum    
Property and Equipment [Line Items]    
Property and equipment, useful life 3 years 3 years
Furniture, equipment and other | Maximum    
Property and Equipment [Line Items]    
Property and equipment, useful life 10 years 10 years
Construction in progress    
Property and Equipment [Line Items]    
Property and equipment $ 36.1 $ 39.5