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Derivatives - Impact of Derivatives Contracts on Condensed Consolidated Statements of Operations (Details) - Other income, net - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Unrealized gain (loss) on foreign currency contracts
Derivative [Line Items]
Gain (loss) on foreign currency contracts	$ 553	$ (323)	$ 349	$ 442
Realized gain on foreign currency contracts
Derivative [Line Items]
Gain (loss) on foreign currency contracts	1,059	447	1,471	572
Foreign currency contracts
Derivative [Line Items]
Gain (loss) on foreign currency contracts	$ 1,612	$ 124	$ 1,820	$ 1,014

X

- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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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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