Accounts Receivable (Net Accounts Receivable) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable [Abstract]
Billed utility revenue	$ 265,504	$ 197,815
Other	4,801	1,283
Gross accounts receivable	270,305	199,098
Less allowance for doubtful accounts	63,981	58,073	$ 40,099	$ 7,353
Net accounts receivable	$ 206,324	$ 141,025