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Business Segments 2 (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Segment Reporting [Abstract] |  |  |
Total utility plant | $ 1,892,280 | $ 1,753,766 | $ 1,626,004
Other assets | 353,842 | 280,608 |
Total Assets | $ 2,246,122 | $ 2,034,374 |

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