|
Fair Value Measurements (Narrative) (Details)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2014
USD ($)
|
Sep. 30, 2013
USD ($)
|
Sep. 30, 2014
USD ($)
|
Sep. 30, 2013
USD ($)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Other current assets [Member]
Designated as Hedging Instrument [Member]
USD ($)
|
Dec. 31, 2013
Foreign Exchange Contract [Member]
Other current assets [Member]
Designated as Hedging Instrument [Member]
USD ($)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Other current assets [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Other current assets [Member]
Not Designated as Hedging Instrument [Member]
EUR (€)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Other current assets [Member]
Not Designated as Hedging Instrument [Member]
ILS
|
Dec. 31, 2013
Foreign Exchange Contract [Member]
Other current assets [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Accrued expenses and other current liabilities [Member]
Designated as Hedging Instrument [Member]
USD ($)
|
Dec. 31, 2013
Foreign Exchange Contract [Member]
Accrued expenses and other current liabilities [Member]
Designated as Hedging Instrument [Member]
USD ($)
|
Sep. 30, 2014
Foreign Exchange Contract [Member]
Accrued expenses and other current liabilities [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
|
Dec. 31, 2013
Foreign Exchange Contract [Member]
Accrued expenses and other current liabilities [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
|
|
| Derivatives, Fair Value [Line Items] | ||||||||||||||
| Assets derivatives - Notional amount | $ 5,760 | $ 63,000 | € 46,500 | $ 12,490 | ||||||||||
| Liability derivatives - Notional amount | 162,900 | 18,150 | 45,700 | 54,000 | ||||||||||
| Fair value adjustments on derivatives designated as cash flow hedges | $ (1,149) | $ 188 | $ (1,105) | $ 188 | ||||||||||