v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 01, 2025
Entity Information [Line Items]    
Document Fiscal Year Focus 2025  
Entity Central Index Key 0000728391  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Incorporation, State or Country Code IN  
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2025  
Amendment Flag false  
Document Fiscal Period Focus Q2  
Entity Registrant Name IPALCO ENTERPRISES, INC.  
Entity Tax Identification Number 35-1575582  
Entity Address, City or Town Indianapolis  
Entity File Number 1-8644  
Entity Address, Address Line One One Monument Circle  
Entity Address, Postal Zip Code 46204  
Entity Address, State or Province IN  
City Area Code 317  
Local Phone Number 261-8261  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Common Stock, Shares, Outstanding   108,907,318
AES U.S. Investments [Member]    
Entity Information [Line Items]    
Common Stock, Shares, Outstanding   89,685,177
CDPQ [Member]    
Entity Information [Line Items]    
Common Stock, Shares, Outstanding   19,222,141