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Derivative Instruments and Hedging Activities Schedule of Derivatives, Effect on OCI (Details) (Foreign Exchange Contract [Member], Cash Flow Hedging [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2014
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Jun. 30, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
|
|
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member]
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | $ (1,581) | $ 1,913 | $ (1,015) | $ 3,020 |