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Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Schedule of Changes in the Components of Other Comprehensive Income (Loss) | Changes in the components of other comprehensive income (loss), net of tax, were as follows for the periods presented:
| Pre-Tax |  | Tax Expense (Benefit) |  | Net of Tax
Three months ended March 31, 2024 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding losses on securities | $ | (6,192) |  |  | $ | (1,558) |  |  | $ | (4,634) |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 3,275 |  |  | 837 |  |  | 2,438 |
Total securities available for sale | (2,917) |  |  | (721) |  |  | (2,196) |
Derivative instruments: |  |  |  |  |
Unrealized holding losses on derivative instruments | (765) |  |  | (195) |  |  | (570) |
Total derivative instruments | (765) |  |  | (195) |  |  | (570) |
Defined benefit pension and post-retirement benefit plans: |  |  |  |  |
Amortization of net actuarial loss recognized in net periodic pension cost | 106 |  |  | 27 |  |  | 79 |
Total defined benefit pension and post-retirement benefit plans | 106 |  |  | 27 |  |  | 79 |
Total other comprehensive loss | $ | (3,576) |  |  | $ | (889) |  |  | $ | (2,687) |
Three months ended March 31, 2023 |  |  |  |  |
Securities available for sale: |  |  |  |  |
Unrealized holding gains on securities | $ | 20,714 |  |  | $ | 5,183 |  |  | $ | 15,531 |
Amortization of unrealized holding losses on securities transferred to the held to maturity category | 3,128 |  |  | 800 |  |  | 2,328 |
Total securities available for sale | 23,842 |  |  | 5,983 |  |  | 17,859 |
Derivative instruments: |  |  |  |  |
Unrealized holding losses on derivative instruments | (1,656) |  |  | (424) |  |  | (1,232) |
Total derivative instruments | (1,656) |  |  | (424) |  |  | (1,232) |
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 income | $ | 22,302 |  |  | $ | 5,589 |  |  | $ | 16,713 |
Schedule of Accumulated Balances for Each Component of Other Comprehensive Income (Loss), Net of Tax | The accumulated balances for each component of other comprehensive loss, net of tax, were as follows as of the dates presented:
| March 31, 2024 |  | December 31, 2023
Unrealized losses on securities | $ | (165,680) |  |  | $ | (163,484) |
Unrealized gains on derivative instruments | 16,481 |  |  | 17,051 |
Unrecognized losses on defined benefit pension and post-retirement benefit plans obligations | (7,744) |  |  | (7,823) |
Total accumulated other comprehensive loss | $ | (156,943) |  |  | $ | (154,256) |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 1 -Section 45 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-1 + Details
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