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Regulatory Matters 3 (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Regulatory matters: |  |
Under (over) collection | $ (22,796) | $ 16,539
Under (over) collection | 22,796 | (16,539)
Other Liabilities, Current | 11,498 | 10,437
GSWC |  |
Regulatory matters: |  |
Under (over) collection | (24,082) | 12,373
Under (over) collection | 24,082 | (12,373)
Other Liabilities, Current | 10,505 | 9,403
Other Regulatory Assets | GSWC |  |
Regulatory matters: |  |
Under (over) collection | 11,739 | 10,670
Under (over) collection | (11,739) | (10,670)
Other Regulatory Assets | Bear Valley Electric Service, Inc. |  |
Regulatory matters: |  |
Under (over) collection | 13,916 | 9,451
Under (over) collection | (13,916) | (9,451)
Pension Costs and Other Postretirement Benefit Costs | GSWC |  |
Regulatory matters: |  |
Regulatory asset authorized under settlement | 25,000 |
Under (over) collection | 25,212 | 65,576
Regulatory Assets | 25,000 |
Under (over) collection | (25,212) | $ (65,576)
Under Collection in Two Way Pension Balancing Account [Member] | Pension Costs and Other Postretirement Benefit Costs | Bear Valley Electric Service, Inc. |  |
Regulatory matters: |  |
Under (over) collection | (246) |
Under (over) collection | 246 |
Under Collection in Two Way Pension Balancing Account [Member] | Pension Costs and Other Postretirement Benefit Costs | Golden State Water Company and Bear Valley Electric Service, Inc. [Member] |  |
Regulatory matters: |  |
Under (over) collection | 261 |
Under (over) collection | $ (261) |

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