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Leases - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Lessee Lease Description [Line Items]        
Lease obligations for additional leases not yet commenced $ 18.6   $ 18.6  
Operating leases not yet commenced, start year     2020  
Operating leases not yet commenced, end year     2021  
Operating lease liabilities $ 17.2 $ 16.7 $ 38.3 $ 33.2
Minimum        
Lessee Lease Description [Line Items]        
Operating leases, terms 1 year   1 year  
Maximum        
Lessee Lease Description [Line Items]        
Operating leases, terms 5 years   5 years