v2.4.0.8
Derivative Financial Instruments (Derivatives And Hedging-Designated) (Details) (Designated As Hedging Instrument [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset $ 2,235  
Derivative Liability, Fair Value, Gross Liability 146  
Commodity Contract [Member] | Other Current Assets [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0 473
Commodity Contract [Member] | Other Current Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability 146 207
Commodity Contract [Member] | Other Noncurrent Assets [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 2,235  
Commodity Contract [Member] | Other Noncurrent Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability $ 0