v2.4.0.6
OTHER CURRENT ASSETS Table (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Other Current Assets [Line Items]    
Prepaid expenses $ 16,555 $ 20,255
Derivative assets 12,112 0
Product advances 11,137 2,738
Product imbalances 2,117 991
Margin deposits 1,083 17,787
Other 681 1,025
Other current assets $ 43,685 $ 42,796