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v3.19.2

Income Taxes: (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
GOLDEN STATE WATER COMPANY |  |  |  |
Effective income tax rate |  |  |  |
ETRs (as a percent) | 23.40% | 23.60% | 22.20% | 21.90%
Parent [Member] |  |  |  |
Effective income tax rate |  |  |  |
ETRs (as a percent) | 22.60% | 21.20% | 21.90% | 20.40%

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