Increase in revenues to reflect the final decision on cost of capital proceeding

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- Definition

Number of contracts with 15-year contract with the U.S. government.

+ References

No definition available.

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- Definition

Represents the period of fixed price contracts to operate and maintain the water and/or wastewater systems at various military bases.

+ References

No definition available.

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- Definition

Retroactive water revenues impact as a result of a proposed decision for the full year of 2022

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Revenues - Narrative (Details) $ in Millions	9 Months Ended
Revenues - Narrative (Details) $ in Millions	Sep. 30, 2024 USD ($) item	Sep. 30, 2023 USD ($)
ASUS
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 4,100.0
ASUS \| Minimum
Disaggregation of Revenue [Line Items]
Period of fixed price contracts to operate and maintain water systems at various military bases	15 years
ASUS \| Maximum
Disaggregation of Revenue [Line Items]
Period of fixed price contracts to operate and maintain water systems at various military bases	50 years
Revenue, remaining performance obligation, expected timing of satisfaction, period	50 years
Bay State Utility Service LLC (" BSUS")
Disaggregation of Revenue [Line Items]
Number of contracts with 15 year contract \| item	1
Golden State Water Company and Bear Valley Electric Service Inc. \| Sales \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	90.00%
Contracted services: \| Bay State Utility Service LLC (" BSUS")
Disaggregation of Revenue [Line Items]
Period of fixed price contracts to operate and maintain water systems at various military bases	15 years
Water:
Disaggregation of Revenue [Line Items]
Retroactive water revenues impact as a result of a proposed decision		$ 32.0
Water: \| Cost of capital proceeding
Disaggregation of Revenue [Line Items]
Revenue impact due to lower cost of debt		$ 6.4