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Benefit Plans (Schedule Of Expected Benefit Payments) (Details)
$ in Thousands
Dec. 31, 2021
USD ($)
Entity Information [Line Items]  
2016 $ 39,994
2017 40,782
2018 41,509
2019 42,344
2020 42,893
2021 through 2025 (in total) 216,332
Indianapolis Power And Light Company  
Entity Information [Line Items]  
2016 39,994
2017 40,782
2018 41,509
2019 42,344
2020 42,893
2021 through 2025 (in total) $ 216,332