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Leases, Additional Details (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        
Operating lease, weighted-average remaining lease term 8 years 4 months 24 days   8 years 4 months 24 days  
Operating lease, weighted-average discount rate (as a percentage) 4.20%   4.20%  
Operating lease costs $ 2.9 $ 2.2 $ 5.8 $ 4.5
Operating lease payments     $ 4.3 $ 5.1
Minimum        
Lessee, Lease, Description        
Lessee, operating lease, remaining lease term 1 year   1 year  
Maximum        
Lessee, Lease, Description        
Lessee, operating lease, remaining lease term 10 years   10 years