v2.4.0.8
Segment Information (Summary Of Financial Data) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Segment Reporting Information [Line Items]    
Revenues $ 733,889 $ 765,476
Gross profit (loss) 100,749 27,214
Operating income (loss) 78,343 12,704
Revenue From External Customers [Member]
   
Segment Reporting Information [Line Items]    
Revenues 733,889 765,476
Revenue Including Intersegment Activity [Member]
   
Segment Reporting Information [Line Items]    
Revenues 1,653,779 1,312,034
Ethanol Production [Member]
   
Segment Reporting Information [Line Items]    
Gross profit (loss) 71,688 1,230
Operating income (loss) 66,226 (2,349)
Ethanol Production [Member] | Revenue From External Customers [Member]
   
Segment Reporting Information [Line Items]    
Revenues (27,431) 44,408
Ethanol Production [Member] | Intersegment Revenue [Member]
   
Segment Reporting Information [Line Items]    
Revenues 565,803 464,651
Ethanol Production [Member] | Revenue Including Intersegment Activity [Member]
   
Segment Reporting Information [Line Items]    
Revenues 538,372 509,059
Corn Oil Production [Member]
   
Segment Reporting Information [Line Items]    
Gross profit (loss) 7,815 7,909
Operating income (loss) 7,708 7,810
Corn Oil Production [Member] | Revenue From External Customers [Member]
   
Segment Reporting Information [Line Items]    
Revenues 7  
Corn Oil Production [Member] | Intersegment Revenue [Member]
   
Segment Reporting Information [Line Items]    
Revenues 16,384 15,699
Corn Oil Production [Member] | Revenue Including Intersegment Activity [Member]
   
Segment Reporting Information [Line Items]    
Revenues 16,391 15,699
Agribusiness [Member]
   
Segment Reporting Information [Line Items]    
Gross profit (loss) 2,976 1,226
Operating income (loss) 935 369
Agribusiness [Member] | Revenue From External Customers [Member]
   
Segment Reporting Information [Line Items]    
Revenues 18,241 22,125
Agribusiness [Member] | Intersegment Revenue [Member]
   
Segment Reporting Information [Line Items]    
Revenues 304,238 64,919
Agribusiness [Member] | Revenue Including Intersegment Activity [Member]
   
Segment Reporting Information [Line Items]    
Revenues 322,479 87,044
Marketing And Distribution [Member]
   
Segment Reporting Information [Line Items]    
Gross profit (loss) 40,716 17,055
Operating income (loss) 32,494 12,986
Marketing And Distribution [Member] | Revenue From External Customers [Member]
   
Segment Reporting Information [Line Items]    
Revenues 743,072 698,943
Marketing And Distribution [Member] | Intersegment Revenue [Member]
   
Segment Reporting Information [Line Items]    
Revenues 33,465 1,289
Marketing And Distribution [Member] | Revenue Including Intersegment Activity [Member]
   
Segment Reporting Information [Line Items]    
Revenues 776,537 700,232
Intersegment Eliminations [Member]
   
Segment Reporting Information [Line Items]    
Gross profit (loss) (22,446) (206)
Operating income (loss) (22,386) (161)
Intersegment Eliminations [Member] | Intersegment Revenue [Member]
   
Segment Reporting Information [Line Items]    
Revenues (919,890) (546,558)
Corporate Activities [Member]
   
Segment Reporting Information [Line Items]    
Operating income (loss) $ (6,634) $ (5,951)