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v3.22.2.2

Capitalization (Details) |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 14, 2022 USD ($) | Jun. 30, 2022 USD ($) | May 20, 2022 USD ($) | May 02, 2022 $ / shares shares | Aug. 09, 2021 USD ($) $ / agreement shares | Apr. 19, 2021 USD ($) | Apr. 23, 2019 USD ($) $ / shares | Apr. 30, 2022 shares | Aug. 31, 2020 USD ($) shares | Jun. 30, 2022 USD ($) shares | Sep. 30, 2021 USD ($) shares | Sep. 30, 2022 USD ($) $ / shares shares | Sep. 30, 2021 USD ($) | Dec. 31, 2021 $ / shares shares | Oct. 31, 2022 USD ($) | Jun. 29, 2022 USD ($) | Apr. 15, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 0.50 |  | $ 0.50 |  |  |
Common stock, shares authorized | shares |  |  |  |  |  |  |  |  |  |  |  | 600,000,000 |  | 600,000,000 |  |  |
Common stock, shares issued | shares |  |  |  |  |  |  |  |  |  |  |  | 265,530,007 |  | 256,102,388 |  |  |
Issuance of common stock from forward equity sale agreement | $ 500,000,000 |  |  |  | $ 299,739,000 |  |  |  |  |  | $ 299,739,000 |  |  |  |  |  |
Issuance of common stock from forward equity sale agreement , shares | shares |  |  |  |  | 6,700,000 |  |  |  |  |  | 6,700,000 |  |  |  |  |  |
Stock purchase contracts early settled by holders of the contracts | shares |  |  |  |  |  |  |  | 981,919 |  |  |  |  |  |  |  |  |
Shares settled | shares |  |  |  | 6,621,315 |  |  |  | 1,166,107 |  |  |  |  |  |  |  |  |
Issuance of common stock from stock purchase contracts , shares | shares |  |  |  | 7,863,354 |  |  |  |  |  | 9,029,461 | 127,749 |  |  |  |  |  |
Conversion to shares | $ / shares |  |  |  | $ 1.18758 |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  |  |  |  |  |  | $ 521,792,000 | $ 717,816,000 |  |  |  |
Initial Forward Equity Sale Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward price | $ / agreement |  |  |  |  | 46.00 |  |  |  |  |  |  |  |  |  |  |  |
Forward Equity Sale Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from private placement |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |
Common stock, shares authorized | shares |  |  |  |  |  |  |  |  | 6,700,000 |  |  |  |  |  |  |  |
Forward price | $ / agreement |  |  |  |  | 44.74 |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of line of credit |  |  | $ 410,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity |  | Jun. 29, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing capacity |  | $ 300,000,000 |  |  |  |  |  |  |  | $ 300,000,000 |  |  |  |  |  | $ 100,000,000 |
Debt term |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes at 5.30%, due 2052 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  | 5.30% |  |  |  |  |  |  |  |  | 5.30% |  | 5.30% |  |  |
Maturity date |  |  |  |  |  |  |  |  |  |  |  | 2052 |  | 2052 |  |  |
Debt issuance expense |  |  | $ 5,815,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Year |  |  | 2052 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate |  |  | 5.30% |  |  |  |  |  |  |  |  | 5.30% |  | 5.30% |  |  |
Unsecured notes payable |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  | $ 500,000,000 |  |  |  |  |
Long-Term Debts [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  | 2.40% |  |  |  |  |  |  |  |  |  |  |
Face Amount |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt issuance expense |  |  |  |  |  | $ 4,010,000 |  |  |  |  |  |  |  |  |  |  |
Interest Rate |  |  |  |  |  | 2.40% |  |  |  |  |  |  |  |  |  |  |
Aqua Ohio, Inc [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000
Aqua Ohio, Inc [Member] | First Mortgage Bonds Due In 2031 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.37%
Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000
Interest Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.37%
Aqua Ohio, Inc [Member] | First Mortgage Bonds Due In 2051 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.35%
Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000
Interest Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.35%
Aqua Pennsylvania, Inc [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt term |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Repayment of line of credit |  |  | $ 49,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aqua Pennsylvania, Inc [Member] | First Mortgage Bonds Due In 2052 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.50% |  |
Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 125,000,000 |  |
Interest Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.50% |  |
LDC Funding LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private placement, per share | $ / shares |  |  |  |  |  |  | $ 50.00 |  |  |  |  |  |  |  |  |  |
Proceeds from tangible equity units |  |  |  |  |  |  | $ 690,000,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |
Initial principal amount |  |  |  |  |  |  | $ 119,081,000 |  |  |  |  |  |  |  |  |  |
Initial principal amount per share | $ / shares |  |  |  |  |  |  | $ 8.62909 |  |  |  |  |  |  |  |  |  |
Cash installment | $ / shares |  |  |  |  |  |  | $ 0.75 |  |  |  |  |  |  |  |  |  |
Cash installment rate |  |  |  |  |  |  | 6.00% |  |  |  |  |  |  |  |  |  |
Debt issuance expense |  |  |  |  |  |  | $ 16,358,000 |  |  |  |  |  |  |  |  |  |
Interest Rate |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |
LDC Funding LLC [Member] | July 30, 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash installment | $ / shares |  |  |  |  |  |  | $ 0.80833 |  |  |  |  |  |  |  |  |  |

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