Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Fair Value Measurements (Narrative) (Details)

v2.4.0.8
Fair Value Measurements (Narrative) (Details)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Mar. 31, 2014
Foreign Exchange Future [Member]
USD ($)
Mar. 31, 2014
Foreign Exchange Future [Member]
EUR (€)
Dec. 31, 2013
Foreign Exchange Future [Member]
USD ($)
Dec. 31, 2013
Foreign Exchange Future [Member]
EUR (€)
Mar. 31, 2014
Foreign Exchange Future Two [Member]
USD ($)
Mar. 31, 2014
Foreign Exchange Future Two [Member]
ILS
Dec. 31, 2013
Foreign Exchange Future Two [Member]
USD ($)
Dec. 31, 2013
Foreign Exchange Future Two [Member]
ILS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Foreign exchange transactions     $ 90,000 € 66,300 $ 54,000 € 40,300 $ 40,300 140,800 $ 18,300 65,000
Change in fair value of earn-out obligations (7,495)                   
Fair value adjustments on derivatives designated as cash flow hedges (129)                   
Cash flow hedge $ 13,800