v3.25.1
Cover Document - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Apr. 15, 2025
Entity Information [Line Items]    
Entity Central Index Key 0000728391  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Document Type 10-K/A  
Document Annual Report true  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
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, Postal Zip Code 46204  
Entity Emerging Growth Company false  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers Yes  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   108,907,318
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus FY  
Amendment Flag false  
Entity Public Float $ 0.0  
Document Period End Date Dec. 31, 2024  
Auditor Name Ernst & Young LLP  
Auditor Location Indianapolis, Indiana  
Auditor Firm ID 42  
AES U.S. Investments [Member]    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   89,685,177
CDPQ [Member]    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   19,222,141