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COMMITMENTS AND CONTINGENCIES - Water Supply Contracts (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) acrefoot entity | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Water Supply Contracts |  |  |  |
Purchased water |  | $ 224,529 | $ 225,020 | $ 230,076
Supply Commitment | Camino Real |  |  |  |
Water Supply Contracts |  |  |  |
Payments for other commitments |  | 21,500 |  |
Supply Commitment | Camino Real | Forecast |  |  |  |
Water Supply Contracts |  |  |  |
Payments for other commitments | $ 22,200 |  |  |
Kern County Water Agency (Agency) |  |  |  |
Water Supply Contracts |  |  |  |
Recorded unconditional purchase obligation |  | 82,400 |  |
Purchased water |  | $ 10,500 |  |
Minimum acre feet of treated water to be purchased per year over life of contract | acrefoot |  | 20,500 |  |
Minimum acre feet of treated water to be purchased under prior agreement | acrefoot |  | 11,500 |  |
Minimum acre feet of treated water to be purchased per year by other parties | acrefoot |  | 32,500 |  |
Number of other parties obligated to purchase treated water | entity |  | 3 |  |
Water production costs |  | $ 3,800 |  |
Stockton East Water District (SEWD) |  |  |  |
Water Supply Contracts |  |  |  |
Payments to suppliers |  | 15,300 | 12,900 | 14,300
Santa Clara Valley Water District |  |  |  |
Water Supply Contracts |  |  |  |
Payments to suppliers |  | $ 11,300 | $ 11,900 | $ 15,200
Guarantee Type, Other | Kern County Water Agency (Agency) |  |  |  |
Water Supply Contracts |  |  |  |
Unrecorded unconditional purchase obligation, minimum quantity required | acrefoot |  | 20,500 |  |
Water Contracts |  |  |  |
Water Supply Contracts |  |  |  |
2023 |  | $ 57,705 |  |
2024 |  | 35,450 |  |
2025 |  | 35,450 |  |
2026 |  | 35,454 |  |
2027 |  | 35,454 |  |
Thereafter |  | $ 482,686 |  |

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