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Foreign Currency Derivatives - Derivative Instruments Measured at Gross Fair Value as Reflected in Condensed Consolidated Balance Sheets (Details) (Foreign exchange contract, USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
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Mar. 15, 2015
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Dec. 31, 2014
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| Derivatives Fair Value [Line Items] | |||||||||
| Derivative assets | $ 22,808 | $ 14,342 | |||||||
| Derivative liabilities | 12,651 | 8,175 | |||||||
| Designated as Hedge Instruments | |||||||||
| Derivatives Fair Value [Line Items] | |||||||||
| Derivative assets | 11,012 | [1] | 5,501 | [1] | |||||
| Derivative liabilities | 5,856 | [2] | 4,041 | [2] | |||||
| Not Designated as Hedging Instrument | |||||||||
| Derivatives Fair Value [Line Items] | |||||||||
| Derivative assets | 11,796 | [1] | 8,841 | [1] | |||||
| Derivative liabilities | $ 6,795 | [2] | $ 4,134 | [2] | |||||
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