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v3.23.1

Revenues - Narrative (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items] |
Revenue, remaining performance obligation, amount | $ 3,500.0
ASUS |
Disaggregation of Revenue [Line Items] |
Period of fixed price contracts to operate and maintain water systems at various military bases | 50 years
ASUS | Minimum |
Disaggregation of Revenue [Line Items] |
Revenue, remaining performance obligation, expected timing of satisfaction, period | 32 years
ASUS | Maximum |
Disaggregation of Revenue [Line Items] |
Revenue, remaining performance obligation, expected timing of satisfaction, period | 45 years
Contracted services: | ASUS |
Disaggregation of Revenue [Line Items] |
Period of fixed price contracts to operate and maintain water systems at various military bases | 50 years
Electric: | Golden State Water Company and Bear Valley Electric Service Inc. | Sales | Customer Concentration Risk |
Disaggregation of Revenue [Line Items] |
Concentration risk, percentage | 90.00%
Water: |
Disaggregation of Revenue [Line Items] |
Retroactive water revenues impact as a result of a proposed decision | $ 30.0
Water: | GSWC | Sales | Customer Concentration Risk |
Disaggregation of Revenue [Line Items] |
Concentration risk, percentage | 90.00%

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