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Derivative Financial Instruments Derivatives Not Designated as Hedging Relationships (Details) (Other Income (Expense) [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
|
|
|
Other Income (Expense) [Member]
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| Derivative Instruments Not Designated as Hedging Instruments [Abstract] | ||||
| Foreign exchange forward contracts | $ (2,458) | $ 882 | $ (4,389) | $ 125 |