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Leases Additional Details (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Lessee, Lease, Description    
Operating lease, weighted-average remaining lease term 7 years 10 months 24 days  
Operating lease, weighted-average discount rate (as a percentage) 4.20%  
Operating lease costs $ 2.9 $ 2.2
Operating lease payments $ 2.3 $ 2.6
Minimum    
Lessee, Lease, Description    
Lessee, operating lease, remaining lease term 1 year  
Maximum    
Lessee, Lease, Description    
Lessee, operating lease, remaining lease term 10 years