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Regulatory Matters 2 (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2005 | Jul. 31, 2005 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Regulatory matters: |  |  |  |  |
Water |  |  | $ 347,112,000 | $ 330,637,000 | $ 319,830,000
Total |  |  | (22,796,000) | 16,539,000 |
Excess deferred income taxes |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | (77,000,000) |  |
Flow-through taxes, net |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | (6,300,000) |  |
WRAM |  |  |  |  |
Regulatory matters: |  |  |  |  |
Regulatory adjustment |  |  | 7,100,000 |  |
GSWC |  |  |  |  |
Regulatory matters: |  |  |  |  |
Water |  |  | 347,112,000 | 330,637,000 | $ 319,830,000
Total |  |  | (24,082,000) | 12,373,000 |
GSWC | Excess deferred income taxes |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | (73,000,000) | (74,185,000) |
GSWC | Costs deferred for future recovery on Aerojet case |  |  |  |  |
Regulatory matters: |  |  |  |  |
Regulatory Asset Recovery Periods |  | 20 years |  |  |
Total |  |  | 5,210,000 | 6,751,000 |
GSWC | Costs deferred for future recovery on Aerojet case | Maximum |  |  |  |  |
Regulatory matters: |  |  |  |  |
Regulatory Asset Recovery Periods | 20 years |  |  |  |
GSWC | Flow-through taxes, net |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | $ (5,552,000) | (9,722,000) |
GSWC | WRAM, net of MCBA |  |  |  |  |
Regulatory matters: |  |  |  |  |
Commercial paper, term |  |  | 90 days |  |
Amount billed to customers as surcharges |  |  | $ 7,500,000 |  |
Total |  |  | $ 13,326,000 | 13,741,000 |
GSWC | WRAM, net of MCBA | Maximum |  |  |  |  |
Regulatory matters: |  |  |  |  |
Regulatory Asset Recovery Periods |  |  | 24 months |  |
GSWC | WRAM |  |  |  |  |
Regulatory matters: |  |  |  |  |
Deferred Revenues |  |  | $ 0 |  |
Total |  |  | (3,800,000) |  |
GSWC | Modified Cost Balancing Account |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | 17,100,000 |  |
GSWC | Pension Costs and Other Postretirement Benefit Costs |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | 25,212,000 | 65,576,000 |
Various refunds to customers | GSWC |  |  |  |  |
Regulatory matters: |  |  |  |  |
Total |  |  | $ (2,680,000) | $ (4,577,000) |

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