v2.4.0.8
Debt (Schedule Of Principal Payments Of Long-Term Debt) (Details) (Term Loan [Member], USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Green Plains Fairmont and Green Plains Wood River [Member]
 
Debt Instrument [Line Items]  
Scheduled principal payments, periodic $ 2.5
Green Plains Holdings II [Member]
 
Debt Instrument [Line Items]  
Scheduled principal payments, periodic 1.8
Green Plains Superior [Member]
 
Debt Instrument [Line Items]  
Scheduled principal payments, periodic 1.4
Green Plains Processing [Member]
 
Debt Instrument [Line Items]  
Scheduled principal payments, periodic $ 0.6