Related Party Transactions (Textual) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Entity gal		Dec. 31, 2017 USD ($) Entity	Dec. 31, 2016 USD ($)	Dec. 31, 2009 USD ($)	Mar. 02, 2018 gal	Jan. 01, 2017	Mar. 31, 2016	Jul. 31, 2013 location	Dec. 31, 2007	Jan. 31, 2007
Related Party Transaction [Line Items]
Capacity of production facility gallon per year | gal	110,000,000
Noncontrolling interest, ownership percentage by noncontrolling owners										34.00%
Number of ethanol entities | Entity	3		3
Revenues recognized for sale of ethanol	$ 625.2		$ 590.9	$ 427.8
Revenues recognized for sale of corn			498.8	$ 426.8
Due from related parties	7.0		5.9
Receivables due from related parties due more than 30 days	0.1		0.1
Total distributions received from unconsolidated affiliates	3.8
Undistributed earnings of equity method investments	106.7
Percentage of new shares acquired from subsidiary (percentage)								100.00%
Related party, gross asset	1.9		0.2
Related party, gross liability	$ 6.3		$ 2.5
Subsidiaries | Element LLC
Related Party Transaction [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners						49.00%
Noncontrolling interest ownership percentage by parent						51.00%
Maximum production capacity per year of bio-refinery | gal						70,000,000
The Andersons Albion Ethanol LLC
Related Party Transaction [Line Items]
Capacity of production facility gallon per year | gal	110,000,000
Percentage of company ownership interest (percentage)	55.00%
The Andersons Marathon Ethanol LLC
Related Party Transaction [Line Items]
Capacity of production facility gallon per year | gal	110,000,000
Percentage of company ownership interest (percentage)	33.00%
Equity method investment ownership percentage transferred					50.00%						50.00%
Additional investment for minority interest ownership by noncontrolling owners					$ 1.1
Andersons Ethanol Investments LLC
Related Party Transaction [Line Items]
Percentage of company ownership interest (percentage)							66.00%
Lux JV Hold Co
Related Party Transaction [Line Items]
Percentage of company ownership interest (percentage)									100.00%
Thompsons Limited
Related Party Transaction [Line Items]
Percentage of company ownership interest (percentage)	50.00%	[1]							50.00%
Number of locations | location									12

[1] Thompsons Limited and related U.S. operating company held by joint ventures