Changes in accumulated OCI (loss) by component, net of tax, were as follows for the periods indicated: | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, 2026 | | | Investment Securities Available-for-Sale | | Net Change in Fair Value of Cash Flow Hedges | | Postretirement Benefits | | Accumulated Other Comprehensive Income (Loss) | | | (In Thousands) | | Balance at December 31, 2025 | $ | (20,593) | | | $ | 52 | | | $ | 539 | | | $ | (20,002) | | | Other comprehensive income (loss) | (11,345) | | | (112) | | | — | | | (11,457) | | | (Income) expense recognized in earnings | — | | | 48 | | | — | | | 48 | | | Balance at March 31, 2026 | $ | (31,938) | | | $ | (12) | | | $ | 539 | | | $ | (31,411) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, 2025 | | | Investment Securities Available-for-Sale | | Net Change in Fair Value of Cash Flow Hedges | | Postretirement Benefits | | Accumulated Other Comprehensive Income (Loss) | | | (In Thousands) | | Balance at Balance at December 31, 2024 | $ | (53,718) | | | $ | (1,323) | | | $ | 2,159 | | | $ | (52,882) | | | Other comprehensive income (loss) | 9,737 | | | 250 | | | — | | | 9,987 | | | Reclassification adjustment for (income) expense recognized in earnings | — | | | 397 | | | — | | | 397 | | | Balance at March 31, 2025 | $ | (43,981) | | | $ | (676) | | | $ | 2,159 | | | $ | (42,498) | | | | | | | | | |
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