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Regulatory Matters - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 19, 2024
Sep. 30, 2025
Regulated Operations [Abstract]    
Reduction in authorized return of equity   0.20%
Authorized revenue, threshold percentage   2.00%
Balancing and memorandum revenue account, refunds (collections) $ 15,792