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Derivative Financial Instruments (Narrative) (Details) - Foreign exchange contracts - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
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Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional Amount of Foreign Currency Cash Flow Hedge | $ 157.2 | $ 113.3
Cash Flow Hedging | Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional Amount of Foreign Currency Cash Flow Hedge | $ 90.2 | $ 98.7

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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