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Summary of Significant Accounting and Reporting Policies - Regulatory Assets and Liabilities Narrative (Details) | Dec. 31, 2023 | Dec. 31, 2022
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Generation Facilities And Transmission Assets |  |
Summary of Significant Accounting Policies [Line Items] |  |
Regulatory asset, amortization period | 20 years | 20 years
Deferred Clause And Franchise Expenses |  |
Summary of Significant Accounting Policies [Line Items] |  |
Regulatory asset, amortization period | 21 months | 21 months
Storm Restoration Costs |  |
Summary of Significant Accounting Policies [Line Items] |  |
Regulatory asset, amortization period | 12 months | 12 months

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- Definition [Line Items] for Summary of Significant Accounting Policies [Table] + References No definition available. + Details
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- Definition Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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