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Operating Leases - Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	3 years 10 months 24 days	3 years 10 months 24 days
Weighted average discount rate (as a percent)	7.60%	7.60%
Unrealized foreign currency gain (loss)	$ (500)	$ 49
Minimum
Lessee, Lease, Description [Line Items]
General term of leased facilities	3 years	3 years
Maximum
Lessee, Lease, Description [Line Items]
General term of leased facilities	5 years	5 years

X

- Definition

Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Weighted average discount rate for operating lease calculated at point in time.

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