Commitments and Contingent Liabilities (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Commitments and Contingent Liabilities [Line Items]
Estimated incremental borrowing rate	4.03%		4.03%
Rental expenses under operating leases	$ 200,000	$ 200,000	$ 600,000	$ 600,000
Construction program expenses			96,000,000
Estimated obligation expenditure			$ 8,000,000
Purchase Commitment [Member]
Commitments and Contingent Liabilities [Line Items]
Purchase commitment expiration date of contract			Nov. 30, 2023
Average purchase			$ 27,000,000
Regulated Water Utility [Member]
Commitments and Contingent Liabilities [Line Items]
Purchase commitment expiration date of contract			Feb. 27, 2026
Average purchase			$ 3,000,000
City of Dover [Member]
Commitments and Contingent Liabilities [Line Items]
Average purchase			$ 15,000,000