Fair Value of Financial Instruments - Gains (Losses) Recognized (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Other foreign currency transactions gain (loss)	$ (906)	$ (378)	$ (851)	$ (927)
Total foreign exchange gain (loss), net	(264)	(439)	(131)	(674)
Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) from non-designated forward contracts	$ 642	$ (61)	$ 720	$ 253

Foreign Currency Transaction Gain (Loss) Including Derivatives, Before Tax

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 815
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- Definition

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

+ References

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