Goodwill (Schedule Of Goodwill) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Line Items]
Balance	$ 2,340,738
Reclassification to utility plant acquisition adjustment	(5)
Balance	2,340,733
Regulated Water [Member]
Goodwill [Line Items]
Balance	58,450
Reclassification to utility plant acquisition adjustment	(5)
Balance	58,445
Regulated Natural Gas [Member]
Goodwill [Line Items]
Balance	2,277,447
Balance	2,277,447
Other [Member]
Goodwill [Line Items]
Balance	4,841
Balance	$ 4,841