Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income attributable to The Andersons, Inc.	$ 29,888	$ 21,529	$ 15,895	$ 19,829
Less: Distributed and undistributed earnings allocated to nonvested restricted stock	0	0	0	0
Earnings available to common shareholders	$ 29,888	$ 21,529	$ 15,895	$ 19,829
Earnings per share - basic:
Weighted average shares outstanding - basic (shares)	32,521	28,261	32,511	28,249
Earnings per common share - basic (dollars per share)	$ 0.92	$ 0.76	$ 0.49	$ 0.70
Earnings per share - diluted:
Weighted average shares outstanding - basic (shares)	32,521	28,261	32,511	28,249
Effect of dilutive awards (shares)	212	128	560	187
Weighted average shares outstanding - diluted (shares)	32,733	28,389	33,071	28,436
Earnings per common share - diluted (dollars per share)	$ 0.91	$ 0.76	$ 0.48	$ 0.70
Antidilutive shares excluded from computation of earnings per share (in shares)	33	28	61	25