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v3.25.3

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Schedule of Capitalization | The following table details amounts capitalized for the fiscal year ended September 30.
|  | 2025 |  | 2024 |  | 2023
Component of AFUDC | Statement of Comprehensive Income Location | (In thousands)
Debt | Interest charges | $ | 21,104 |  |  | $ | 14,655 |  |  | $ | 15,808 |
Equity | Other non-operating income | 75,425 |  |  | 58,234 |  |  | 64,019 |
|  | $ | 96,529 |  |  | $ | 72,889 |  |  | $ | 79,827 |

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- Definition Tabular disclosure of the capitalization of the entity comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument. + References No definition available. + Details
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