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Regulatory Matters (Details) $ in Thousands | May 01, 2026 | Nov. 01, 2025 | May 01, 2025 | Apr. 29, 2025 USD ($) period | Jun. 27, 2024 USD ($) | Jun. 20, 2024 USD ($) increase utility period
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Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |
Requested revenue increase |  |  |  |  |  | $ 351
Number of regulated utilities that filed a rate case with the ACC | utility |  |  |  |  |  | 7
Approved rate, number of phase-in periods | period |  |  |  |  |  | 5
Number of subsequent increases in approved rate | increase |  |  |  |  |  | 4
Arizona Corporation Commission (ACC) |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |
Requested revenue increase |  |  |  | $ 1,100 |  |
Return on equity, percentage |  |  |  | 9.60% |  |
Requested rate, number of phase-in periods | period |  |  |  | 3 |  |
Requested equity capital structure (as a percent) |  |  | 50.00% |  |  |
Requested deferral of recovery of acquisition premium |  |  |  |  | $ 3,000 |
Arizona Corporation Commission (ACC) | Forecast |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |
Requested equity capital structure (as a percent) | 25.00% | 25.00% |  |  |  |

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