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Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Property and Equipment [Line Items]    
Property and equipment $ 2,193.8 $ 2,089.2
Less: accumulated depreciation 1,527.6 1,436.3
Property and equipment, net 666.2 652.9
Land    
Property and Equipment [Line Items]    
Property and equipment 98.8 97.5
Building and building improvements    
Property and Equipment [Line Items]    
Property and equipment 50.4 48.7
Advertising structures    
Property and Equipment [Line Items]    
Property and equipment 1,866.1 1,789.4
Furniture, equipment and other    
Property and Equipment [Line Items]    
Property and equipment 153.1 134.3
Construction in progress    
Property and Equipment [Line Items]    
Property and equipment $ 25.4 $ 19.3