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Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Supplemental Cash Flow Information [Abstract]    
Non-cash investing activity in connection with property and equipment $ 11.9  
Non-cash investing activity in connection with property and equipment $ (29.1)  
Non-cash investing activity in connection with property and equipment, seller financing   $ 17.4