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Leases - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Leases [Abstract]      
Operating Leases, Rent Expense, Net $ 7.2   $ 22.2
Capital leases amortization expense 0.3   1.0
Capital leases interest expense $ 0.3   $ 0.8
Undiscounted contract amount operating leases not yet commenced   $ 26.0  
Minimum      
Leases      
Remaining lease term of contract   1 month 6 days  
Operating lease contract not yet commenced   10 years  
Maximum      
Leases      
Remaining lease term of contract   34 years 3 months 18 days  
Lessee remaining lease renewal term   20 years  
Operating lease contract not yet commenced   20 years