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Foreign Currency Forward Contracts (Details) - Foreign exchange forward contracts - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Designated as Hedging Instrument | Cash flow hedge |  |
Derivative Financial Instruments |  |
Notional amount | $ 17.6 | $ 0.0
Designated as Hedging Instrument | Cash flow hedge | Maximum |  |
Derivative Financial Instruments |  |
Maturity term | 1 year |
Not Designated as Hedging Instrument |  |
Derivative Financial Instruments |  |
Notional amount | $ 39.3 | $ 6.1
Not Designated as Hedging Instrument | Maximum |  |
Derivative Financial Instruments |  |
Maturity term | 1 year |

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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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- 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. + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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