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Operating Leases - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]  
Weighted average remaining lease term 3 years 10 months 24 days
Weighted average discount rate (as a percent) 7.80%
Unrealized foreign currency gain (loss) $ 900
Minimum  
Lessee, Lease, Description [Line Items]  
General term of leased facilities 3 years
Maximum  
Lessee, Lease, Description [Line Items]  
General term of leased facilities 5 years