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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The activity in accumulated other comprehensive (loss) income is presented in the tables below (in thousands). The activity is shown net of tax, which is calculated using a combined Federal and state income tax rate approximating 24% for 2023 and 2022.
| Accumulated Other Comprehensive (Loss) Income
|  | Unrealized |
|  | Gains (Losses) on |
| Defined Benefit | Securities |
| Pension Plans | Available-for-Sale | Total
Balance at December 31, 2021 | $ | (3,485) |  | $ | 17,745 |  | $ | 14,260 |
Other comprehensive income (loss) before reclassifications | 63 |  | (145,808) |  | (145,745) |
Amounts reclassified from other comprehensive (loss) income | — |  | (3) |  | (3) |
| 63 |  | (145,811) |  | (145,748) |
Balance at December 31, 2022 | $ | (3,422) |  | $ | (128,066) |  | $ | (131,488) |
Other comprehensive income before reclassifications | 841 |  | 16,366 |  | 17,207 |
Amounts reclassified from other comprehensive (loss) income | — |  | 3,742 |  | 3,742 |
| 841 |  | 20,108 |  | 20,949 |
Balance at December 31, 2023 | $ | (2,581) |  | $ | (107,958) |  | $ | (110,539) |
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income |
| Amounts reclassified from Other Comprehensive (Loss) Income | Affected line item
| December 31, | in the Consolidated
| 2023 | 2022 | 2021 | Statements of Income
Securities available-for-sale: |  |  |  |
Net securities losses (gains) reclassified into earnings | $ | 4,908 |  | $ | (4) |  | $ | (312) |  | Net (losses) gains on sale of investment securities
Related income tax (benefit) expense | (1,166) |  | 1 |  | 75 |  | Income tax expense (benefit)
Net effect on accumulated other comprehensive (loss) income | $ | 3,742 |  | $ | (3) |  | $ | (237) |  |

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