v2.4.0.8
Debt (Schedule Of Maturity Dates Of Long-Term Debt) (Details) (Ethanol Production Segment [Member])
6 Months Ended
Jun. 30, 2014
Green Plains Fairmont and Green Plains Wood River [Member] | Term Loan [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates Nov. 27, 2015
Green Plains Holdings II [Member] | Term Loan [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates Jul. 01, 2019
Green Plains Holdings II [Member] | Revolving Term Loans [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates Jul. 01, 2019
Green Plains Obion [Member] | Revolving Term Loans [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates May 20, 2020
Green Plains Superior [Member] | Term Loan [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates Jul. 20, 2015
Green Plains Superior [Member] | Revolving Term Loans [Member]
 
Debt Instrument [Line Items]  
Debt maturity dates Jul. 01, 2017