Financial Instruments and Risk Management (Gross Notional Amount of Outstanding Derivatives) (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Designated as Hedging Instrument [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Currency forward contracts | $ 161,000 | $ 103,000 |
| Not Designated as Hedging Instrument [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Currency forward contracts | $ 113,195 | $ 128,000 |
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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