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Derivative Instruments (Schedule Of Realized (Gains) Losses On Derivatives Recognized In Statement Of Income) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Designated as Hedging Instrument [Member] | Derivatives Designated As Cash Flow Hedges [Member] | Foreign Currency Derivatives [Member] | Cost Of Goods Sold/Other Expense (Income) / Revenue [Member]
    
Derivative [Line Items]    
Amount of (Gain)/Loss Recognized (Effective Portion) $ 301 $ 94
Designated as Hedging Instrument [Member] | Derivatives Designated As Cash Flow Hedges [Member] | Commodity Forward Derivatives [Member] | Cost of Sales [Member]
    
Derivative [Line Items]    
Amount of (Gain)/Loss Recognized (Effective Portion) 529 (323)
Not Designated As Hedging Instrument [Member] | Derivatives Designated As Fair Value Hedges [Member] | Foreign Currency Derivatives [Member] | Cost Of Goods Sold/Other Expense (Income) [Member]
    
Derivative [Line Items]    
Amount of (Gain)/Loss Recognized (Effective Portion) $ (191) $ (1,782)