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Derivative Instruments (Schedule Of Fair Value Of Derivatives Designated As Fair Value Hedges) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Not Designated As Hedging Instrument [Member]
Other Receivables [Member]
Sep. 30, 2013
Not Designated As Hedging Instrument [Member]
Other Receivables [Member]
Sep. 30, 2014
Not Designated As Hedging Instrument [Member]
Other Payables [Member]
Sep. 30, 2013
Not Designated As Hedging Instrument [Member]
Other Payables [Member]
Sep. 30, 2014
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Other Receivables [Member]
Dec. 31, 2013
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Other Receivables [Member]
Sep. 30, 2014
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Other Payables [Member]
Dec. 31, 2013
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Other Payables [Member]
Sep. 30, 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]
Sep. 30, 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]
Sep. 30, 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]
Sep. 30, 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]
Sep. 30, 2014
Cost Of Good Sold Other Expense Income [Member]
Derivatives Designated As Fair Value Hedges [Member]
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Sep. 30, 2013
Cost Of Good Sold Other Expense Income [Member]
Derivatives Designated As Fair Value Hedges [Member]
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Sep. 30, 2014
Cost Of Good Sold Other Expense Income [Member]
Derivatives Designated As Fair Value Hedges [Member]
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Sep. 30, 2013
Cost Of Good Sold Other Expense Income [Member]
Derivatives Designated As Fair Value Hedges [Member]
Not Designated As Hedging Instrument [Member]
Foreign Currency Derivatives [Member]
Derivative [Line Items]                                            
Derivative Instruments, Gain (Loss) Recognized in Income, Net                                     $ 444 $ 509 $ 383 $ (912)
Cash Flow Hedge Derivative Instrument Assets at Fair Value 1,606 1,130                 1,130 772     0 834            
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value 1,185 806                     274 1,185     532 0        
Fair Value, Asset Derivatives     328 240     240 328                            
Fair Value, Liability Derivatives         $ 24 $ 336     $ 336 $ 24