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Leases - Schedule of Components of Lease Expense (Parenthetical) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Leases [Abstract]        
Variable lease costs $ 2.9 $ 1.3 $ 8.4 $ 3.3