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Leases (Narrative) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
May 31, 2019
May 13, 2019
Apr. 01, 2019
Mar. 31, 2019
Lessee, Lease, Description [Line Items]          
Term of contract   5 years      
Renewal term   5 years      
Weighted average remaining lease term 6 years 2 months 27 days        
Weighted average discount rate 5.21%        
Operating lease right-of-use asset $ 16,097   $ 20,500 $ 17,435 $ 0
Operating lease liability $ 17,625   $ 20,500    
Minimum          
Lessee, Lease, Description [Line Items]          
Term of contract 1 year        
Renewal term 1 year        
Maximum          
Lessee, Lease, Description [Line Items]          
Term of contract 10 years        
Renewal term 6 years