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Transportation Agreements (Details) (USD $)
12 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Dec. 31, 2012
Components
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Alon transportation agreement
Dec. 31, 2011
Alon transportation agreement
Dec. 31, 2012
HFC transportation agreement
Dec. 31, 2011
HFC transportation agreement
Dec. 31, 2012
Initial Term [Member]
Alon transportation agreement
Dec. 31, 2012
Extension Period [Member]
Alon transportation agreement
Finite-Lived Intangible Assets [Line Items]                  
Finite-Lived Intangible Assets, Amortization Expense $ 6,900,000 $ 6,900,000 $ 6,900,000            
Finite-Lived Intangible Assets, Useful Life (years)       30 years   15 years   15 years 15 years
Finite-Lived Intangible Assets, Net [Abstract]                  
Transportation agreements, gross 134,164,000 134,164,000   59,933,000 59,933,000 74,231,000 74,231,000    
Less accumulated amortization 39,568,000 32,621,000              
Transportation agreements, net $ 94,596,000 $ 101,543,000              
Basis in Transportation Agreements 0