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v3.22.2.2

Rate and Regulatory Matters (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jan. 02, 2023 | Jan. 02, 2022 | Aug. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021
Pinelands [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Approved increase in annual operating revenues |  |  |  | $ 0.4 |
New Jersey Board of Public Utilities [Member] | Twin Lakes [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Escrow account |  |  |  | 1.7 |
New Jersey Board of Public Utilities [Member] | Middlesex Water [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Approved increase in annual operating revenues |  | $ 20.7 |  |  | $ 27.7
Base rate amount |  |  |  |  | $ 513.5
Return on equity |  |  |  |  | 9.60%
New Jersey Board of Public Utilities [Member] | Middlesex Water [Member] | Scenario Forecast [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Approved increase in annual operating revenues | $ 7.0 |  |  |  |
New Jersey Board of Public Utilities [Member] | Middlesex Member [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Approved increase in annual operating revenues |  |  |  | 2.7 |
New Jersey Board of Public Utilities [Member] | Pinelands [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Approved increase in annual operating revenues |  |  |  | $ 0.6 |
Delaware Public Service Commission Member | Tidewater [Member] |  |  |  |  |
Regulatory Liability [Line Items] |  |  |  |  |
Return on equity |  |  | 6.00% |  |
Rate reduction is expected to reduce annual revenue |  |  | $ 2.2 |  |

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