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Leases Other Lease (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2019
Jan. 01, 2019
Lessee, Lease, Description [Line Items]    
Operating cash flows used for finance leases $ 20  
Operating cash flows used for operating leases 7,288  
Financing cash flows used for finance leases 58  
Right-of-use assets obtained in exchange for new finance lease liabilities 55  
Finance lease, right-of-use asset 659  
Right-of-use assets recorded upon adoption $ 4,100  
Weighted average remaining lease term - finance leases 4 years  
Weighted average discount rate - finance leases 6.69%  
Weighted average remaining lease term - operating leases 2 years 11 months  
Weighted average discount rate - operating leases 5.50%  
Accounting Standards Update 2016-02    
Lessee, Lease, Description [Line Items]    
Finance lease, right-of-use asset   $ 35,939