| Cover Page | Oct. 29, 2020 |
| Entity Information [Line Items] | |
| Entity Emerging Growth Company | false |
| Document Type | 8-K |
| Document Period End Date | Oct. 29, 2020 |
| Entity Registrant Name | IPALCO ENTERPRISES, INC. |
| Entity Incorporation, State or Country Code | IN |
| Entity File Number | 1-8644 |
| Entity Tax Identification Number | 35-1575582 |
| Entity Address, Address Line One | One Monument Circle |
| Entity Address, City or Town | Indianapolis |
| Entity Address, State or Province | IN |
| Entity Address, Postal Zip Code | 46204 |
| City Area Code | 317 |
| Local Phone Number | 261-8261 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Central Index Key | 0000728391 |
| Amendment Flag | false |
