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Statement of Cash Flows, Supplemental Disclosures (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Taxes and Interest Paid: |  |  |
Income taxes paid | $ 34,682 | $ 27,370 | $ 29,153
Interest Paid, Excluding Capitalized Interest, Operating Activities | 39,367 | 26,005 | 22,540
Non-Cash Transactions: |  |  |
Accrued payables for investment in utility plant | 34,906 | 40,034 | 32,855
Property installed by developers and conveyed | 4,690 | 1,549 | 7,222
GSWC |  |  |
Taxes and Interest Paid: |  |  |
Income taxes paid | 31,625 | 20,155 | 21,428
Interest Paid, Excluding Capitalized Interest, Operating Activities | 28,099 | 22,294 | 21,156
Non-Cash Transactions: |  |  |
Accrued payables for investment in utility plant | 33,465 | 38,302 | 30,656
Property installed by developers and conveyed | $ 4,690 | $ 1,549 | $ 7,222

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