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Financial Instruments and Fair Value Measurements (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details) - Forward Currency Contracts [Member] - Cash Flow Hedging [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Derivatives, Fair Value [Line Items] |  |
Notional amounts | $ 1,489 | $ 9,017
Other Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow hedges , other derivative assets | 121 | 370
Other Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow hedges, other derivative, liabilities |  |

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- Definition Fair value of all liability derivatives designated as cash flow hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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