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Utility Plant and Intangible Assets - By Major Asset Class (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | $ 2,442,895 | $ 2,279,621
Less — accumulated depreciation |  | (648,199) | (624,472)
Construction work in progress |  | 304,929 | 237,131
Net utility plant |  | 2,099,625 | 1,892,280
Water |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 2,271,768 | 2,123,150
Water | Land |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 18,240 | 18,290
Water | Intangible assets |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 31,004 | 30,917
Water | Source of water supply |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 115,247 | 111,112
Water | Pumping |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 253,150 | 234,264
Water | Water treatment |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 114,784 | 98,533
Water | Transmission and distribution |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 1,589,763 | 1,489,974
Water | Other |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 149,580 | 140,060
Electric: | Intangible assets |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 1,200 | 1,200
GSWC |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Less — accumulated depreciation |  | (561,256) | (543,135)
Construction work in progress |  | 245,314 | 195,742
Net utility plant |  | 1,911,369 | 1,735,534
GSWC | Water |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 2,227,311 | 2,082,927
GSWC | Water | Land |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 18,240 | 18,290
GSWC | Water | Intangible assets |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 31,004 | 30,917
GSWC | Water | Source of water supply |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 115,247 | 111,112
GSWC | Water | Pumping |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 253,150 | 234,264
GSWC | Water | Water treatment |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 114,784 | 98,533
GSWC | Water | Transmission and distribution |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 1,589,763 | 1,489,974
GSWC | Water | Other |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 105,123 | 99,837
GSWC | Electric: |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 0 | 0
GSWC | Electric: | Transmission and distribution |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 0 | 0
GSWC | Electric: | Generation |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 0 | 0
GSWC | Electric: | Other |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost | [1] | 0 | 0
BVES | Electric: |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 171,127 | 156,471
BVES | Electric: | Transmission and distribution |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 141,634 | 126,143
BVES | Electric: | Generation |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost |  | 12,583 | 12,583
BVES | Electric: | Other |  |  |
Utility plant utilized in continuing operations by major asset class |  |  |
Total utility plant, at cost | [1] | $ 16,910 | $ 17,745
[1] | Includes intangible assets of $1.2 million for the years ended December 31, 2024 and 2023 for studies performed.

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