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Derivative Instruments (Schedule Of Fair Value Of Derivatives Designated As Cash Flow Hedges) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Sep. 30, 2013
Mar. 31, 2014
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Other Receivables [Member]
Dec. 31, 2013
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Other Receivables [Member]
Mar. 31, 2014
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Other Payables [Member]
Dec. 31, 2013
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Other Payables [Member]
Mar. 31, 2014
Cash Flow Hedging [Member]
Commodity Derivative Contracts [Member]
Other Current Assets [Member]
Dec. 31, 2013
Cash Flow Hedging [Member]
Commodity Derivative Contracts [Member]
Other Current Assets [Member]
Mar. 31, 2014
Cash Flow Hedging [Member]
Commodity Derivative Contracts [Member]
Other Current Liabilities [Member]
Dec. 31, 2013
Cash Flow Hedging [Member]
Commodity Derivative Contracts [Member]
Other Current Liabilities [Member]
Mar. 31, 2014
Designated as Hedging Instrument [Member]
Cost Of Good Sold Other Expense Income Revenue [Member]
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Mar. 31, 2013
Designated as Hedging Instrument [Member]
Cost Of Good Sold Other Expense Income Revenue [Member]
Cash Flow Hedging [Member]
Foreign Currency Derivatives [Member]
Mar. 31, 2014
Designated as Hedging Instrument [Member]
Cost of Sales [Member]
Cash Flow Hedging [Member]
Commodity Forward Derivatives [Member]
Mar. 31, 2013
Designated as Hedging Instrument [Member]
Cost of Sales [Member]
Cash Flow Hedging [Member]
Commodity Forward Derivatives [Member]
Derivative [Line Items]                            
Derivative Instruments, Gain (Loss) Recognized in Income, Net                     $ 301 $ 94 $ 529 $ (323)
Derivatives designated as cash flow hedges, Asset Derivatives, Fair Value 1,606 648 621 772     27 834            
Derivatives designated as cash flow hedges, Liability Derivatives, Fair Value $ 1,185 $ 796     $ 796 $ 1,185     $ 0 $ 0