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Subsequent Events (Details) - USD ($)
Oct. 09, 2020
Oct. 01, 2020
Sep. 01, 2019
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Reduction in other assets   $ (69,700,000)  
Reduction in accumulated other comprehensive income   $ (10,700,000)  
Green Plains Cattle Company LLC [Member]      
Subsequent Event [Line Items]      
Percent equity interest sold     50.00%
Green Plains Cattle Company LLC [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Percent equity interest sold 50.00%    
Amount received from disposition of equity interest $ 80,500,000    
No gain (loss) recorded on transaction $ 0