Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 6,917	$ 26,622	$ 48,552
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	119,182	109,967	132,393
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	256,085	246,896	240,314
Amortization of deferred financing costs and debt discounts	3,915	3,942	4,109
Deferred income taxes and investment tax credit adjustments - net	(7,378)	2,854	15,277
Loss on early extinguishment of debt	0	2,424	0
Allowance for equity funds used during construction	(5,412)	(4,574)	(3,486)
Gain on acquisition	(5,630)	0	0
Change in certain assets and liabilities:
Accounts receivable	(13,943)	(4,103)	6,469
Inventories	(12,017)	(15,240)	13,574
Accounts payable	(21,417)	20,322	(3,047)
Accrued and other current liabilities	(21,680)	(8,214)	4,413
Accrued taxes payable/receivable	638	6,695	(15,698)
Accrued interest	(1,099)	(3,601)	544
Pension and other postretirement benefit assets and liabilities	(16,592)	(6,991)	5,414
Short-term and long-term regulatory assets and liabilities	(104,759)	(13,390)	921
Prepayments and other current assets	4,135	(578)	(2,119)
Other - net	8,355	(340)	(7,357)
Net cash provided by operating activities	225,217	295,425	397,815
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(291,510)	(235,700)	(213,619)
Project development costs	(1,304)	(2,401)	(2,269)
Cost of removal and regulatory recoverable ARO payments	(48,952)	(37,786)	(21,838)
Payments to Acquire Intangible Assets	(26,261)	0	0
Other	(688)	118	278
Net cash used in investing activities	(368,715)	(275,769)	(237,448)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under revolving credit facilities	320,000	115,000	10,000
Repayments under revolving credit facilities	(335,000)	(40,000)	(10,000)
Long-term borrowings, net of discount	95,000	564,568	0
Retirement of long-term debt, including early payment premium	(95,000)	(562,135)	0
Distributions to shareholders	(131,476)	(108,739)	(136,426)
Proceeds from Contributed Capital	275,000	0	0
Dividends on preferred stock	(3,213)	(3,213)	(3,213)
Deferred financing costs paid	(1,387)	(6,914)	0
Payments for financed capital expenditures	(36)	(36)	(5,623)
Other	(95)	(117)	(152)
Net cash provided by (used in) financing activities	123,793	(41,586)	(145,414)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(19,705)	(21,930)	14,953
Cash, cash equivalents and restricted cash at end of period	6,912	20,502
Cash paid during the period for:
Interest (net of amount capitalized)	118,052	122,938	117,457
Income taxes	27,500	27,000	29,600
Non-cash investing activities:
Accruals for capital expenditures	81,325	54,360	35,471
Indianapolis Power And Light Company
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,761	17,951	42,589
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	150,243	144,040	157,277
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	256,085	246,896	240,314
Amortization of deferred financing costs and debt discounts	2,536	2,335	2,262
Deferred income taxes and investment tax credit adjustments - net	(7,373)	3,078	15,120
Allowance for equity funds used during construction	(5,412)	(4,574)	(3,486)
Gain on acquisition	(5,630)	0	0
Change in certain assets and liabilities:
Accounts receivable	(13,746)	(4,071)	6,504
Inventories	(12,017)	(15,240)	13,574
Accounts payable	(21,502)	20,621	(2,816)
Accrued and other current liabilities	(21,680)	(8,214)	4,416
Accrued taxes payable/receivable	(2,302)	18,012	(15,437)
Accrued interest	(1,099)	(518)	546
Pension and other postretirement benefit assets and liabilities	(16,592)	(6,991)	5,414
Short-term and long-term regulatory assets and liabilities	(104,759)	(13,390)	921
Prepayments and other current assets	4,172	(569)	(2,119)
Other - net	3,856	(6,174)	(7,053)
Net cash provided by operating activities	247,784	333,999	421,069
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(291,510)	(235,700)	(213,619)
Project development costs	(1,304)	(2,401)	(2,269)
Cost of removal and regulatory recoverable ARO payments	(48,952)	(37,786)	(21,838)
Payments to Acquire Intangible Assets	26,261	0	0
Loans to Parent	0	26,110	0
Loan repayments from parents	6,110	20,000	0
Other	(688)	118	0
Net cash used in investing activities	(362,605)	(281,879)	(237,726)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under revolving credit facilities	320,000	115,000	10,000
Repayments under revolving credit facilities	(335,000)	(40,000)	(10,000)
Long-term borrowings, net of discount	95,000	90,000	0
Retirement of long-term debt, including early payment premium	(95,000)	(90,000)	0
Distributions to shareholders	(155,700)	(147,600)	(159,000)
Dividends on preferred stock	(3,213)	(3,213)	(3,213)
Proceeds from Contributions from Parent	275,000	0	0
Deferred financing costs paid	(1,325)	(792)	0
Payments for financed capital expenditures	(36)	(36)	(5,623)
Other	(95)	(117)	(152)
Net cash provided by (used in) financing activities	99,631	(76,758)	(167,988)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(15,190)	(24,638)	15,355
Cash, cash equivalents and restricted cash at end of period	2,756	17,946
Cash paid during the period for:
Interest (net of amount capitalized)	82,880	84,869	88,546
Income taxes	40,800	27,000	37,400
Non-cash investing activities:
Accruals for capital expenditures	$ 81,325	$ 54,360	$ 35,471