Financial Instruments - Non Designated Derivatives in Foreign Currency Relationships (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020
Derivative Instruments Gain Loss [Line Items]
Location of Derivative Gain	$ 75	$ 102
Selling, General and Administrative Expenses [Member] \| Foreign Exchange Contracts - Forwards [Member]
Derivative Instruments Gain Loss [Line Items]
Location of Derivative Gain	$ 75	$ 102

Amount of increase in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959

Name:	us-gaap_DerivativeGainOnDerivative
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration