Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income attributable to The Andersons, Inc.	$ (2,098)	$ 2,533	$ 17,732	$ (27,208)
Less: Distributed and undistributed earnings allocated to nonvested restricted stock	0	0	0	0
Earnings available to common shareholders	$ (2,098)	$ 2,533	$ 17,732	$ (27,208)
Earnings per share - basic:
Weighted average shares outstanding - basic (shares)	28,263,000	28,350,000	28,254,000	28,327,000
Earnings per common share - basic (dollars per share)	$ (0.07)	$ 0.09	$ 0.63	$ (0.96)
Earnings per share - diluted:
Weighted average shares outstanding - basic (shares)	28,263,000	28,350,000	28,254,000	28,327,000
Effect of dilutive awards (shares)	0	134,000	233,000	0
Weighted average shares outstanding - diluted (shares)	28,263,000	28,484,000	28,487,000	28,327,000
Earnings per common share - diluted (dollars per share)	$ (0.07)	$ 0.09	$ 0.62	$ (0.96)
Earnings Per Share (Textual) [Abstract]
Antidilutive stock-based awards outstanding (shares)		43,000	0	43,000