v2.4.0.8
FAIR VALUE MEASUREMENTS Table 1 (Details) (Recurring Fair Value Measurements, USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Fair Value Assets and Liabilities Measured on Recurring Basis    
Fair Value Assets and Liabilities Measured on Recurring Basis $ (542) $ 4,709
Fair Value Level 1
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Fair Value Assets and Liabilities Measured on Recurring Basis 892 (1,643)
Fair Value Level 2
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Fair Value Assets and Liabilities Measured on Recurring Basis 2,504 9,550
Fair Value Level 3
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Guarantee liability (2,600)  
Fair Value Assets and Liabilities Measured on Recurring Basis (3,938) (3,198)
Other current assets
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 2,470 1,980
Commodity derivatives - assets 5,274 4,948
Other current assets | Fair Value Level 1
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 2,470 1,980
Commodity derivatives - assets 579 0
Other current assets | Fair Value Level 2
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 0 0
Commodity derivatives - assets 4,695 4,948
Other current assets | Fair Value Level 3
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 0 0
Commodity derivatives - assets 0 0
Other long-term assets, net
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - assets 794 6,977
Other long-term assets, net | Fair Value Level 1
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - assets 0 0
Other long-term assets, net | Fair Value Level 2
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - assets 794 6,977
Other long-term assets, net | Fair Value Level 3
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - assets 0 0
Accrued liabilities
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) (2,157) (2,190)
Commodity derivatives - liabilities (2,574) (2,233)
Contingent consideration (1,318) (1,318)
Accrued liabilities | Fair Value Level 1
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) (2,157) (2,190)
Commodity derivatives - liabilities 0 (1,433)
Contingent consideration 0 0
Accrued liabilities | Fair Value Level 2
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 0 0
Commodity derivatives - liabilities (2,574) (800)
Contingent consideration 0 0
Accrued liabilities | Fair Value Level 3
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Product imbalances, asset (liabilities) 0 0
Commodity derivatives - liabilities 0 0
Contingent consideration (1,318) (1,318)
Other long-term liabilities
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - liabilities (411) (1,575)
Guarantee liability (2,620) (1,880)
Other long-term liabilities | Fair Value Level 1
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - liabilities 0 0
Guarantee liability 0 0
Other long-term liabilities | Fair Value Level 2
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - liabilities (411) (1,575)
Guarantee liability 0 0
Other long-term liabilities | Fair Value Level 3
    
Fair Value Assets and Liabilities Measured on Recurring Basis    
Commodity derivatives - liabilities 0 0
Guarantee liability $ (2,620) $ (1,880)