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Fair Value Measurements And Derivative Instruments (Schedule Of Fair Value Of Derivatives Designated As Cash Flow Hedges) (Details) (Derivatives Designated As Cash Flow Hedges [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Derivatives, Fair Value [Line Items]    
Derivatives designated as cash flow hedges, Asset Derivatives, Fair Value $ 1,606 $ 1,062
Derivatives designated as cash flow hedges, Liability Derivatives, Fair Value 1,185 2,405
Foreign Currency Derivatives [Member] | Other Receivables [Member]
   
Derivatives, Fair Value [Line Items]    
Derivatives designated as cash flow hedges, Asset Derivatives, Fair Value 772 1,062
Foreign Currency Derivatives [Member] | Other Payables [Member]
   
Derivatives, Fair Value [Line Items]    
Derivatives designated as cash flow hedges, Liability Derivatives, Fair Value 1,185 2,374
Commodity Derivative Contracts [Member] | Other Current Assets [Member]
   
Derivatives, Fair Value [Line Items]    
Derivatives designated as cash flow hedges, Asset Derivatives, Fair Value 834 0
Commodity Derivative Contracts [Member] | Other Current Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Derivatives designated as cash flow hedges, Liability Derivatives, Fair Value $ 0 $ 31