Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Sales and merchandising revenues	$ 8,170,191,000	$ 3,045,382,000	$ 3,686,345,000
Cost of sales and merchandising revenues	7,652,299,000	2,743,377,000	3,367,546,000
Gross profit	517,892,000	302,005,000	318,799,000
Operating, administrative and general expenses	436,842,000	257,872,000	286,993,000
Asset impairment	41,212,000	6,272,000	10,913,000
Goodwill impairment	0	0	59,081,000
Interest expense	59,691,000	27,848,000	21,567,000
Other income:
Equity in earnings (losses) of affiliates, net	(7,359,000)	27,141,000	16,723,000
Gain from remeasurement of equity method investments, net	35,214,000	0	0
Other income, net	20,109,000	16,002,000	22,507,000
Income (loss) before income taxes	28,111,000	53,156,000	(20,525,000)
Income tax provision (benefit)	13,051,000	11,931,000	(63,134,000)
Net income	15,060,000	41,225,000	42,609,000
Net income (loss) attributable to the noncontrolling interest	(3,247,000)	(259,000)	98,000
Net income attributable to The Andersons, Inc.	$ 18,307,000	$ 41,484,000	$ 42,511,000
Per common share:
Basic earnings attributable to The Andersons, Inc. common shareholders (in dollars per share)	$ 0.56	$ 1.47	$ 1.51
Diluted earnings attributable to The Andersons, Inc. common shareholders (in dollars per share)	$ 0.55	$ 1.46	$ 1.50