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v3.21.2

Income Taxes: (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Effective income tax rate |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |
Golden State Water Company |  |  |  |
Effective income tax rate |  |  |  |
ETRs ( as a percent) | 22.10% | 25.90% | 22.70% | 24.70%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% |
Parent [Member] |  |  |  |
Effective income tax rate |  |  |  |
ETRs ( as a percent) | 21.90% | 24.40% | 22.60% | 23.50%

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