v2.4.0.8
Derivative Financial Instruments (Derivatives And Hedging-Cash Flow Hedges) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]      
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax $ (4,744) [1],[2] $ 13,889 [1],[2] $ 7,739 [1],[2]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (4,245) [1],[2] 2,924 [1],[2] 7,903 [1],[2]
Interest Rate Contract [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax (184) 10,977  
Interest Rate Contract [Member] | Interest Expense [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 163 164  
Commodity Contract [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax (4,560) 2,912  
Commodity Contract [Member] | Sales [Member]
      
Derivative Instruments, Gain (Loss) [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax $ (4,408) $ 2,760  
[1] Includes amounts allocated to the non-controlling owners' interest.
[2] (1) See Note 13–Derivative Financial Instruments for details of the amount of gain/loss recognized in AOCL on derivatives and the amount of gain/loss reclassified from AOCL into income.