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Leases Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2019
Jan. 01, 2019
Lessee, Lease, Description [Line Items]    
Weighted average lease term 7 years  
Lease renewal term 5 years  
Discount rate 9.90%  
Right-of-use asset $ 20.9 $ 16.4
Operating Lease, Payments 4.8  
Operating Lease, Payments $ 4.8  
Maximum    
Lessee, Lease, Description [Line Items]    
Lease renewal term 14 years  
Minimum    
Lessee, Lease, Description [Line Items]    
Lease renewal term 5 years