Goodwill (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Goodwill [Line Items]
Balance		$ 2,340,815,000
Reclassification to utility plant acquisition adjustment		(23,000)
Balance	$ 2,340,792,000	2,340,792,000
Goodwill, Impairment Loss	0
Water [Member]
Goodwill [Line Items]
Balance		58,527,000
Reclassification to utility plant acquisition adjustment		(23,000)
Balance	58,504,000	58,504,000
Natural Gas [Member]
Goodwill [Line Items]
Balance		2,277,447,000
Balance	2,277,447,000	2,277,447,000
Other [Member]
Goodwill [Line Items]
Balance		4,841,000
Balance	$ 4,841,000	$ 4,841,000