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Debt (Details Textual)
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Oct. 07, 2014
USD ($)
Mar. 04, 2014
USD ($)
Jun. 30, 2012
USD ($)
Debt Instrument [Line Items]          
Maximum borrowing capacity       $ 400,000,000  
Current line of credit $ 16,990,000 $ 2,166,000   90,000,000  
Line of credit $ 120,000,000        
Debt Instrument Period Of Draw Down Under Line Of Credit 90 days        
Loan term 15 years        
Recourse          
Debt Instrument [Line Items]          
Current line of credit $ 16,990,000 2,166,000      
Minimum tangible net worth $ 300,000,000        
Current Ratio Net Of Hedged Inventory Maximum 125.00%        
Current Ratio Net Of Hedged Inventory Minimum 100.00%        
Debt to capitalized ratio maximum 70.00%        
Working capital $ 150,000,000        
Interest coverage ratio maximum 275.00%        
Interest Coverage Ratio Minimum 1        
Aggregate annual maturities of long term debt, 2016 $ 27,800,000        
Aggregate annual maturities of long term debt, 2017 48,500,000        
Aggregate annual maturities of long term debt, 2018 54,700,000        
Aggregate annual maturities of long term debt, 2019 121,300,000        
Aggregate annual maturities of long term debt, 2020 16,000,000        
Aggregate annual maturities of long term debt there after 194,500,000        
Nonrecourse          
Debt Instrument [Line Items]          
Current line of credit $ 0 $ 0      
Debt service coverage ratio 1.25        
Debt Instrument Covenant Compliance Debt Service Coverage Ratio Minimum 1.00        
Nonrecourse | December 31 2014          
Debt Instrument [Line Items]          
Minimum tangible net worth $ 36,000,000        
Working capital 18,000,000        
Nonrecourse | December 31 2016          
Debt Instrument [Line Items]          
Minimum tangible net worth 40,000,000        
Five year term debenture bonds | Recourse | Available-for-sale Securities          
Debt Instrument [Line Items]          
Debenture bond bearing interest Amount $ 1,200,000        
Loan term 5 years        
Debenture bond bearing interest percentage 2.65%        
Ten year term debenture bonds | Recourse | Available-for-sale Securities          
Debt Instrument [Line Items]          
Debenture bond bearing interest Amount $ 2,900,000        
Loan term 10 years        
Debenture bond bearing interest percentage 3.50%        
15 year loan with fixed interest rate of 4.8% | Recourse | Available-for-sale Securities          
Debt Instrument [Line Items]          
Debenture bond bearing interest Amount $ 500,000        
Loan term 15 years        
Debenture bond bearing interest percentage 4.50%        
Standby letters of credit          
Debt Instrument [Line Items]          
Letters of credit outstanding $ 31,900,000        
Standby letters of credit | The Andersons Denison Ethanol LLC          
Debt Instrument [Line Items]          
Letters of credit outstanding $ 200,000        
Line of credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity       $ 850,000,000.0  
Line of credit | Long Term Line Of Credit | The Andersons Denison Ethanol LLC          
Debt Instrument [Line Items]          
Maximum borrowing capacity         $ 23,800,000
Auburn Bean and Grain          
Debt Instrument [Line Items]          
Debt assumed as part of acquisition     $ 12,577,000