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Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Schedule of Changes in the Components of Other Comprehensive Income | Changes in the components of other comprehensive income, net of tax, were as follows for the periods presented:
| Pre-Tax |  | Tax Expense (Benefit) |  | Net of Tax
Three months ended September 30, 2024 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding gains on securities | $ | 31,313 |  |  | $ | 7,872 |  |  | $ | 23,441 |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 3,131 |  |  | 800 |  |  | 2,331 |
Total securities available for sale | 34,444 |  |  | 8,672 |  |  | 25,772 |
Derivative instruments: |  |  |  |  |
Unrealized holding losses on derivative instruments | (1,116) |  |  | (288) |  |  | (828) |
Total derivative instruments | (1,116) |  |  | (288) |  |  | (828) |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 106 |  |  | 28 |  |  | 78 |
Total defined benefit pension and post-retirement benefit plans | 106 |  |  | 28 |  |  | 78 |
Total other comprehensive income | $ | 33,434 |  |  | $ | 8,412 |  |  | $ | 25,022 |
Three months ended September 30, 2023 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding losses on securities | $ | (17,175) |  |  | $ | (4,292) |  |  | $ | (12,883) |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 3,959 |  |  | 1,012 |  |  | 2,947 |
Total securities available for sale | (13,216) |  |  | (3,280) |  |  | (9,936) |
Derivative instruments: |  |  |  |  |
Unrealized holding gains on derivative instruments | 2,670 |  |  | 683 |  |  | 1,987 |
Total derivative instruments | 2,670 |  |  | 683 |  |  | 1,987 |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 116 |  |  | 30 |  |  | 86 |
Total defined benefit pension and post-retirement benefit plans | 116 |  |  | 30 |  |  | 86 |
Total other comprehensive loss | $ | (10,430) |  |  | $ | (2,567) |  |  | $ | (7,863) |
| Pre-Tax |  | Tax Expense (Benefit) |  | Net of Tax
Nine months ended September 30, 2024 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding gains on securities | $ | 25,769 |  |  | $ | 6,494 |  |  | $ | 19,275 |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 9,658 |  |  | 2,468 |  |  | 7,190 |
Total securities available for sale | 35,427 |  |  | 8,962 |  |  | 26,465 |
Derivative instruments: |  |  |  |  |
Unrealized holding losses on derivative instruments | (2,069) |  |  | (530) |  |  | (1,539) |
Total derivative instruments | (2,069) |  |  | (530) |  |  | (1,539) |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 317 |  |  | 81 |  |  | 236 |
Total defined benefit pension and post-retirement benefit plans | 317 |  |  | 81 |  |  | 236 |
Total other comprehensive income | $ | 33,675 |  |  | $ | 8,513 |  |  | $ | 25,162 |
Nine months ended September 30, 2023 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding losses on securities | $ | (17,744) |  |  | $ | (4,462) |  |  | $ | (13,282) |
Reclassification adjustment for losses realized in net income | 22,438 |  |  | 5,622 |  |  | 16,816 |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 10,113 |  |  | 2,586 |  |  | 7,527 |
Total securities available for sale | 14,807 |  |  | 3,746 |  |  | 11,061 |
Derivative instruments: |  |  |  |  |
Unrealized holding losses on derivative instruments | (2,153) |  |  | (547) |  |  | (1,606) |
Total derivative instruments | (2,153) |  |  | (547) |  |  | (1,606) |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 347 |  |  | 89 |  |  | 258 |
Total defined benefit pension and post-retirement benefit plans | 347 |  |  | 89 |  |  | 258 |
Total other comprehensive income | $ | 13,001 |  |  | $ | 3,288 |  |  | $ | 9,713 |
Schedule of Accumulated Balances for Each Component of Other Comprehensive Income, Net of Tax | The accumulated balances for each component of other comprehensive loss, net of tax, were as follows as of the dates presented:
| September 30, 2024 |  | December 31, 2023
Unrealized losses on securities | $ | (137,019) |  |  | $ | (163,484) |
Unrealized gains on derivative instruments | 15,512 |  |  | 17,051 |
Unrecognized losses on defined benefit pension and post-retirement benefit plans obligations | (7,587) |  |  | (7,823) |
Total accumulated other comprehensive loss | $ | (129,094) |  |  | $ | (154,256) |

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