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Financial Derivatives and Hedging Activities (Details 3) (Forward foreign currency exchange contracts [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cost 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) $ 2,183 $ 174  
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) 311 165  
Other - net [Member] | Not designated as hedging [Member]
     
Income or loss from derivative instruments recognized in results of operations      
Derivative instruments, gain (loss) $ (696) $ (686) $ (1,047)