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Noncontrolling Interest (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Noncontrolling Interest [Line Items]        
Net loss attributable to BioFuel Energy Corp. $ (2,750) $ (4,124) $ (3,461) $ (8,759)
Decrease in BioFuel Energy Corp. stockholders' equity from issuance of common shares in exchange for Class B common shares and units of BioFuel Energy, LLC (141) 0 (141) 0
Change in equity from net loss attributable to BioFuel Energy Corp. and transfers from noncontrolling interest $ (2,891) $ (4,124) $ (3,602) $ (8,759)