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Leases - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Operating Leased Assets [Line Items]        
Option to extend lease term 10 years   10 years  
Option to terminate lease term     1 year  
Operating lease expense $ 20.6 $ 19.7 $ 60.5 $ 57.3
Minimum        
Operating Leased Assets [Line Items]        
Remaining lease terms 1 year   1 year  
Maximum        
Operating Leased Assets [Line Items]        
Remaining lease terms 10 years   10 years