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Commitments and Contingent Liabilities (Details) | 12 Months Ended
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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

X
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- Definition The expiration date of a long-term purchase commitment. + References No definition available. + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e961-128460 + Details
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- Definition Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 6A -URI https://asc.fasb.org/extlink&oid=126900988&loc=SL77927221-108306 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124258985&loc=SL77919372-209981 + Details
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