Condensed Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Derivatives qualified as cash flow hedges: | ||||
| Unrealized interest rate hedging loss, tax | $ 0 | $ (80) | $ 0 | $ (215) |
| Reclassification adjustment to net income, tax | (19) | (18) | (37) | (35) |
| Retirement benefit plans: | ||||
| Adjustment for amortization of prior service credit and net gains recognized during the period in net periodic benefit cost, tax | (158) | (175) | (317) | (351) |
| Reclassification adjustment for impact of D&Os of the PUC included in regulatory accounts, tax | $ 152 | $ 167 | $ 303 | $ 335 |