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Fair Value Measurements - Summary of Financial Instrument Measured at Fair Value On A Recurring Basis and Carrying Amount and Fair Value (Parenthetical) (Details) $ in Millions | 1 Months Ended
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Jun. 30, 2024 USD ($)
OG&E Tinker Debt [Member] |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Additional distribution assets purchased | $ 2.6

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