| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 |
|---|
| Operating revenue | 1,000.14 | 1,036.81 | 794.63 | 846.43 | 790.91 | 794.31 | 714.56 | 698.20 | 666.89 | 609.37 |
| Total revenues | 1,000.14 | 1,036.81 | 794.63 | 846.43 | 790.91 | 794.31 | 714.56 | 698.20 | 666.89 | 609.37 |
| Purchased power | 45.11 | 47.69 | 45.66 | 44.57 | 37.11 | 34.01 | 31.36 | 207.10 | 28.86 | 181.52 |
| Purchased water | 252.90 | 241.20 | 223.83 | 224.53 | 225.02 | 230.08 | 212.46 | 31.08 | 199.08 | 27.18 |
| Pump taxes | 24.23 | 21.76 | 19.02 | 16.17 | 15.34 | 12.65 | 11.52 | 14.66 | 13.92 | 11.30 |
| Maintenance | 36.00 | 34.75 | 31.98 | 31.72 | 29.59 | 28.03 | 26.83 | 24.49 | 22.53 | 22.99 |
| Other operations | -- | 118.46 | 112.48 | 116.17 | 86.39 | 95.86 | 90.06 | -- | -- | -- |
| Depreciation and amortization | 144.37 | 131.90 | 121.21 | 114.58 | 108.72 | 98.51 | 89.22 | 83.78 | 76.78 | 63.60 |
| Administrative and general | 141.57 | 139.52 | 142.24 | 132.72 | 126.69 | 117.06 | 108.62 | 100.78 | 102.91 | 98.47 |
| Property and other taxes | 44.28 | 40.54 | 36.27 | 35.07 | 32.48 | 30.03 | 28.79 | 27.30 | 24.80 | 23.23 |
| Other | (130.11) | -- | -- | -- | -- | -- | -- | (79.87) | (74.45) | (80.08) |
| Income tax expense (benefit) | (11.22) | (35.94) | 15.19 | (3.26) | (2.81) | (11.44) | (16.28) | (18.59) | (28.93) | (24.80) |
| Total Operating Expenses | 829.77 | 811.75 | 717.50 | 718.77 | 664.14 | 657.64 | 615.15 | 587.66 | 572.27 | 533.18 |
| Net operating income | 170.37 | 225.05 | 77.14 | 127.66 | 126.77 | 136.67 | 99.41 | 110.54 | 94.62 | 76.19 |
| Interest expense | 70.39 | 60.70 | 52.81 | 46.69 | 44.98 | 45.05 | 44.89 | 39.92 | 33.93 | 33.47 |
| Capitalized interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | (2.97) |
| Interest Expense:Other interest | 7.89 | 6.55 | 8.41 | 3.11 | -- | -- | -- | -- | -- | -- |
| Interest expense:Long-term debt interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain (loss)on sale of non-utility property | -- | -- | -- | -- | 0.09 | 0.00 | 0.03 | 0.05 | 0.66 | (0.15) |
| Other Income and Expenses, net | -- | -- | -- | -- | -- | -- | -- | -- | -- | (2.01) |
| Non-regulated revenue | 20.78 | 20.63 | 18.51 | 21.28 | 22.76 | 16.92 | 19.21 | 18.27 | 15.90 | 16.59 |
| Non-regulated expense | (14.65) | (14.20) | (11.81) | (24.82) | (17.23) | (14.30) | (13.87) | (22.79) | (9.39) | (11.45) |
| Allowance for borrowed funds used during construction | 3.70 | 3.15 | 2.99 | 2.34 | 1.77 | 3.19 | 3.67 | 2.06 | -- | -- |
| Allowance for equity funds used during construction | 7.71 | 6.90 | 5.55 | 4.13 | 3.19 | 4.98 | 6.69 | 3.95 | 3.75 | -- |
| Other components of net periodic benefit cost | 18.23 | 15.80 | 20.22 | 14.48 | 9.90 | (4.99) | (5.73) | (9.31) | -- | -- |
| Pre-Tax Income | -- | 190.09 | 51.38 | 95.26 | 102.27 | 97.41 | 64.51 | 62.87 | 71.62 | -- |
| Provision for Income taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current : Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current : State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income taxes (expense) benefit on other income and expenses | -- | -- | -- | -- | 1.29 | 0.58 | 1.39 | (2.72) | 4.44 | -- |
| Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net income | 127.85 | 190.09 | 51.38 | 95.26 | 100.98 | -- | -- | -- | -- | -- |
| Loss attributable to noncontrolling interests | (0.36) | (0.72) | (0.54) | (0.75) | (0.15) | -- | -- | -- | -- | -- |
| Net Income (Loss) available to limited partners shareholders | 128.21 | 190.81 | 51.91 | 96.01 | 101.13 | 96.83 | 63.12 | 65.58 | 67.18 | 48.68 |
| Earnings Per Share (Basic) - Cont Ops | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (BASIC) | 2.15 | 3.26 | 0.91 | 1.77 | 1.96 | 1.97 | 1.31 | 1.36 | 1.40 | 1.02 |
| Earnings Per Share (Diluted) - Cont Ops | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (DILUTED) | 2.15 | 3.25 | 0.91 | 1.77 | 1.96 | 1.97 | 1.31 | 1.36 | 1.40 | 1.01 |
| Weighted Average Shares Outstanding (Basic) | 59.57 | 58.61 | 56.95 | 54.32 | 51.63 | 49.27 | 48.17 | 48.06 | 48.01 | 47.95 |
| Weighted Average Shares Outstanding (Diluted) | 59.63 | 58.65 | 56.98 | 54.36 | 51.63 | 49.27 | 48.17 | 48.06 | 48.01 | 47.96 |