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Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Leases [Abstract]    
Other assets (net of lease impairment of $1,243) $ 17,675  
Operating Lease, Right-Of-Use Asset, Impairment 1,243  
Other current liabilities 5,384  
Other long-term liabilities 13,953  
Total operating lease liabilities 19,337  
Property, plant and equipment, gross 1,190  
Accumulated depreciation (422)  
Property, plant and equipment, net 768  
Current portion of long-term debt 232  
Long-term debt 188  
Total finance lease liabilities $ 420 $ 0
Weighted average remaining lease term (in years)    
Operating leases 4 years 3 months 29 days  
Finance leases 3 years 6 months 29 days  
Weighted average discount rate    
Operating leases 4.67%  
Finance leases 4.96%