v2.4.0.8
Derivative Financial Instruments (Schedule Of Revenues And Cost Of Goods Sold) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Revenue [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Net in revenue $ 3,620 $ 1,982
Cost Of Goods Sold [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Net in revenue $ 4,744 $ 1,962