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Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2024
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following tables represent the changes in accumulated other comprehensive income (loss) by component, net of tax, for the three month periods ended March 31, 2024 and 2023.
(In Thousands of Dollars) | Net unrealized holding (losses) gains on available for sale securities |  |  | Reclassification adjustment for (gains) losses realized in income on fair value hedge |  |  | Change in funded status of post-retirement plan |  |  | Total |
Balance December 31, 2023 | $ | (171,539 | ) |  | $ | (1,013 | ) |  | $ | (2 | ) |  |  | (172,554 | )
Other comprehensive (loss) before reclassification |  | (15,149 | ) |  |  | 0 |  |  |  | 0 |  |  |  | (15,149 | )
Amounts reclassified from accumulated other comprehensive income |  | 1,686 |  |  |  | 1,063 |  |  |  | 0 |  |  |  | 2,749 |
Net current period other comprehensive (loss) income |  | (13,463 | ) |  |  | 1,063 |  |  |  | 0 |  |  |  | (12,400 | )
Balance March 31, 2024 | $ | (185,002 | ) |  | $ | 50 |  |  | $ | (2 | ) |  | $ | (184,954 | )
Balance December 31, 2022 | $ | (210,489 | ) |  | $ | 0 |  |  | $ | (1 | ) |  | $ | (210,490 | )
Other comprehensive income before reclassification |  | 33,891 |  |  |  | 0 |  |  |  | 0 |  |  |  | 33,891 |
Amounts reclassified from accumulated other comprehensive (loss) |  | (95 | ) |  |  | 0 |  |  |  | 0 |  |  |  | (95 | )
Net current period other comprehensive income |  | 33,796 |  |  |  | 0 |  |  |  | 0 |  |  |  | 33,796 |
Balance March 31, 2023 | $ | (176,693 | ) |  | $ | 0 |  |  | $ | (1 | ) |  | $ | (176,694 | )

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