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v3.25.4

Segment Reporting - Reportable Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Operating revenue | $ 800,590 | $ 748,439 | $ 670,363
Less: |  |  |
Production expenses | 311,161 | 292,022 | 256,200
Administrative and general | 125,998 | 105,830 | 98,656
Maintenance | 32,895 | 31,301 | 25,729
Property taxes and other non-income taxes | 37,686 | 35,928 | 34,475
Depreciation and amortization | 115,323 | 112,855 | 105,868
Interest on long-term debt and other interest expense | 72,575 | 71,390 | 66,144
Provision (benefit) for income taxes | 12,355 | 8,970 | 5,956
Other | (9,981) | (3,824) | (7,652)
Net income | 102,578 | 93,967 | 84,987
Capital expenditures | 519,753 | 377,237 | 312,871
Assets | 5,149,566 | 4,658,309 |
Operating Segments | Water Utility Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue | 787,099 | 732,580 | 652,045
Less: |  |  |
Production expenses | 305,460 | 286,763 | 251,898
Administrative and general | 119,665 | 97,420 | 93,255
Maintenance | 30,124 | 29,249 | 23,972
Property taxes and other non-income taxes | 37,521 | 35,223 | 33,469
Depreciation and amortization | 114,286 | 111,709 | 104,329
Interest on long-term debt and other interest expense | 51,463 | 47,485 | 42,743
Provision (benefit) for income taxes | 19,928 | 17,134 | 11,293
Other | (6,531) | (920) | (4,279)
Net income | 115,183 | 108,517 | 95,365
Capital expenditures | 519,753 | 377,208 | 288,627
Assets | 5,054,235 | 4,567,182 |
Other Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue | 13,491 | 15,859 | 18,318
Less: |  |  |
Production expenses | 5,701 | 5,259 | 4,302
Administrative and general | 1,306 | 2,632 | 2,777
Maintenance | 2,771 | 2,052 | 1,757
Property taxes and other non-income taxes | 47 | 317 | 926
Depreciation and amortization | 121 | 253 | 646
Interest on long-term debt and other interest expense | 0 | 521 | 329
Provision (benefit) for income taxes | 1,371 | 1,569 | 2,213
Other | (587) | 191 | (121)
Net income | 2,761 | 3,065 | 5,489
Capital expenditures | 0 | 29 | 24,244
Assets | 26,707 | 25,053 |
Unallocated Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue | 0 | 0 | 0
Less: |  |  |
Production expenses | 0 | 0 | 0
Administrative and general | 5,027 | 5,778 | 2,624
Maintenance | 0 | 0 | 0
Property taxes and other non-income taxes | 118 | 388 | 80
Depreciation and amortization | 916 | 893 | 893
Interest on long-term debt and other interest expense | 21,112 | 23,384 | 23,072
Provision (benefit) for income taxes | (8,944) | (9,733) | (7,550)
Other | (2,863) | (3,095) | (3,252)
Net income | (15,366) | (17,615) | (15,867)
Capital expenditures | 0 | 0 | $ 0
Assets | $ 68,624 | $ 66,074 |

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