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Financial Derivatives and Hedging Activities (Details 3) (Forward foreign currency exchange contracts [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Costs of products sold [Member] | Designated as hedging [Member]
   
Income or (loss) from derivative instruments recognized in results of operations    
Effective portion of derivative instruments, gain (loss) $ (70) $ 572
Other - net [Member] | Designated as hedging [Member]
   
Income or (loss) from derivative instruments recognized in results of operations    
Ineffective portion of derivative instruments, gain (loss) 79 140
Other - net [Member] | Not designated as hedging [Member]
   
Income or (loss) from derivative instruments recognized in results of operations    
Derivative instruments, gain (loss) $ 304 $ (1,070)