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General - Major Streams of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounting Policies [Abstract]
Revenue from contracts with customers	$ 135,836	$ 121,777
Alternative revenue programs, net	(1,391)	(1,927)
Other balancing and memorandum accounts, net	1,795	2,430
Other regulatory mechanisms, net	(391)	666
Rental income	1,447	1,356
Total revenues	$ 137,296	$ 124,302

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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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