| Cover page | Oct. 30, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Oct. 30, 2019 |
| Entity Registrant Name | Andersons, Inc. |
| Entity Incorporation, State or Country Code | OH |
| Entity File Number | 000-20557 |
| Entity Tax Identification Number | 34-1562374 |
| Entity Address, Address Line One | 1947 Briarfield Boulevard |
| Entity Address, City or Town | Maumee |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 43537 |
| City Area Code | 419 |
| Local Phone Number | 893-5050 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Title of 12(b) Security | Common stock, $0.00 par value, $0.01 stated value |
| Trading Symbol | ANDE |
| Security Exchange Name | NASDAQ |
| Entity Central Index Key | 0000821026 |
| Amendment Flag | false |
