Document And Entity Information
6 Months Ended
Jun. 30, 2013
Jul. 30, 2013
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2013  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2013  
Entity Registrant Name Green Plains Renewable Energy, Inc.  
Entity Central Index Key 0001309402  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   30,198,098
Trading Symbol gpre