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Leases - Lease Cost and Other Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Leases [Abstract]      
Operating lease cost $ 1,203    
Short-term lease cost 921    
Total lease cost 2,124    
Cash paid for amounts included in the measurement of lease liabilities:      
Operating cash flows from operating leases (1,203)    
Leased assets obtained in exchange for new operating lease liabilities $ 1,285 $ 0 $ 0
Weighted-average remaining lease term (years) for operating leases 3 years 11 months 19 days    
Weighted-average discount rate operating leases 7.10%