Commitments and Contingent Liabilities (Details)	12 Months Ended
	Dec. 31, 2022 USD ($)
Commitments and Contingent Liabilities (Details) [Line Items]
Estimated incremental borrowing rate	4.03%
Rental expenses under operating leases	$ 800,000
Construction program expenses	102,000,000
Construction program fees	86,000,000
Construction program spend fees	78,000,000
Estimated obligation expenditure	$ 16,800,000
Purchase Commitment [Member]
Commitments and Contingent Liabilities (Details) [Line Items]
Purchase commitment expiration date of contract	Nov. 30, 2023
Average purchase	$ 27,000,000
Regulated Water Utility [Member]
Commitments and Contingent Liabilities (Details) [Line Items]
Purchase commitment expiration date of contract	Feb. 27, 2026
Average purchase	$ 3,000,000
City of Dover [Member]
Commitments and Contingent Liabilities (Details) [Line Items]
Average purchase	$ 15,000,000