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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Summary of the components of accumulated other comprehensive income | The following table summarizes the changes in AOCI by component for the:
| Three Months Ended March 31
| 2024 |  | 2023
| Unrealized Gains (Losses) on AFS Securities |  | Defined Benefit Pension Plan |  | Total |  | Unrealized Gains (Losses) on AFS Securities |  | Defined Benefit Pension Plan |  | Total
Balance, January 1 | $ | (25,199) |  |  | $ | (697) |  |  | $ | (25,896) |  |  | $ | (35,828) |  |  | $ | (1,366) |  |  | $ | (37,194) |
OCI before reclassifications | (2,926) |  |  | — |  |  | (2,926) |  |  | 8,610 |  |  | — |  |  | 8,610 |
Amounts reclassified from AOCI | — |  |  | — |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Subtotal | (2,926) |  |  | — |  |  | (2,926) |  |  | 8,609 |  |  | — |  |  | 8,609 |
Tax effect | 632 |  |  | — |  |  | 632 |  |  | (1,729) |  |  | — |  |  | (1,729) |
OCI, net of tax | (2,294) |  |  | — |  |  | (2,294) |  |  | 6,880 |  |  | — |  |  | 6,880 |
Balance, March 31 | $ | (27,493) |  |  | $ | (697) |  |  | $ | (28,190) |  |  | $ | (28,948) |  |  | $ | (1,366) |  |  | $ | (30,314) |
A summary of the components of unrealized gains on AFS securities included in OCI follows for the:
| Three Months Ended March 31
| 2024 |  | 2023
| Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total |  | Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total
Unrealized gains (losses) arising during the period | $ | 82 |  |  | $ | (3,008) |  |  | $ | (2,926) |  |  | $ | 374 |  |  | $ | 8,236 |  |  | $ | 8,610 |
Reclassification adjustment for net (gains) losses included in net income | — |  |  | — |  |  | — |  |  | — |  |  | (1) |  |  | (1) |
Net unrealized gains (losses) | 82 |  |  | (3,008) |  |  | (2,926) |  |  | 374 |  |  | 8,235 |  |  | 8,609 |
Tax effect | — |  |  | 632 |  |  | 632 |  |  | — |  |  | (1,729) |  |  | (1,729) |
Unrealized gains (losses), net of tax | $ | 82 |  |  | $ | (2,376) |  |  | $ | (2,294) |  |  | $ | 374 |  |  | $ | 6,506 |  |  | $ | 6,880 |

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