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Lines of Credit and Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Nov. 15, 2023
Debt Instrument [Line Items]
Weighted-average interest rate on short-term	6.42%	6.48%
San Jose Water Company | 4.85% Senior Note, Series P | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 25,000
Interest rate			6.46%

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