v3.26.1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Oct. 27, 2025
Mar. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net income (loss) attributable to Green Plains $ 67,149 $ (72,238) $ 100,087 $ (145,144)    
Net income (loss) attributable to Green Plains $ 69,727 $ (72,238) $ 105,243 $ (145,144)    
Weighted average shares outstanding - basic (in shares) 69,112,000 66,491,000 68,977,000 65,287,000    
Effect of dilutive stock-based compensation awards (in shares) 762,000 0 784,000 0    
Weighted average shares outstanding - diluted (in shares) 84,494,000 66,491,000 84,381,000 65,287,000    
EPS - basic (in dollars per share) $ 0.97 $ (1.09) $ 1.45 $ (2.22)    
EPS - diluted (in dollars per share) $ 0.83 $ (1.09) $ 1.25 $ (2.22)    
Anti-dilutive weighted-average convertible debt, warrants and stock-based compensation (in shares) 0 7,938,000 0 7,857,000    
Warrants issued (in shares) 500,000 3,500,000 500,000 3,500,000    
Warrant exercise price (in dollars per share) $ 0.01 $ 0.01 $ 0.01 $ 0.01    
2.25% Convertible Notes Due 2027 | Convertible Notes | Corporate Segment            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Stated percentage           2.25%
Convertible Notes Due 2030 | Convertible Notes | Corporate Segment            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Convertible notes $ 2,265 $ 0 $ 4,530 $ 0    
Effect of dilutive convertible notes (in shares) 12,723,000 0 12,723,000 0    
Stated percentage 5.25%   5.25%      
Corporate activities | 2.25% Convertible Notes Due 2027 | Convertible Notes            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Convertible notes $ 313 $ 0 $ 626 $ 0    
Effect of dilutive convertible notes (in shares) 1,897,000 0 1,897,000 0    
Stated percentage 2.25%   2.25%   5.25%