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General - Revenue Components (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accounting Policies [Abstract]
Revenue from contracts with customers	$ 243,522	$ 216,677	$ 606,162	$ 539,790
Alternative revenue programs, net	3,996	7,369	6,347	6,847
Other balancing and memorandum accounts and regulatory mechanisms, net	(7,804)	(1,432)	(8,792)	(1,019)
Rental income	836	2,449	2,687	5,001
Operating revenue	$ 240,550	$ 225,063	$ 606,404	$ 550,619

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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