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Accumulated Other Comprehensive Income (Loss) - Reclassifications out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amortization of unrealized gains and losses |  | $ 2,014 | $ 2,023
Tax benefit (expense) |  | (4,721) | (4,622)
Realized net gain (loss) on sale of securities |  | (554) | (18)
Total reclassifications for the period, net of tax |  | (481) | 3,502
Unrealized gains (losses) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassified from accumulated other comprehensive income |  | (2,568) | (2,041)
Realized net gain (loss) on interest rate swap derivatives |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassified from accumulated other comprehensive income |  | 2,573 | 6,642
Net actuarial loss |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassified from accumulated other comprehensive income | [1] | (614) | (167)
Amortization of pension plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassified from accumulated other comprehensive income |  | (614) | (167)
Tax (expense) benefit |  | 129 | 34
Total reclassifications for the period, net of tax |  | (485) | (133)
Unrealized gains and losses on securities transferred | Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amortization of unrealized gains and losses | [2] | (2,014) | (2,023)
Tax benefit (expense) |  | 423 | 425
Net of tax |  | (1,591) | (1,598)
Unrealized gains and losses on available for sale securities | Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Tax benefit (expense) |  | 116 | 4
Net of tax |  | (438) | (14)
Realized net gain (loss) on sale of securities | [3] | (554) | (18)
Interest rate swap derivatives | Reclassification out of accumulated other comprehensive income | Realized net gain (loss) on interest rate swap derivatives |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Tax benefit (expense) |  | (540) | (1,395)
Net of tax |  | 2,033 | 5,247
Realized net (loss) gain on interest rate swap derivatives | [4] | $ 2,573 | $ 6,642
[1] | These AOCI components are included in the computation of net periodic pension cost (income) presented in “Note 8 – Employee Benefit Plans.”
[2] | Included in interest income on the consolidated statements of income.
[3] | Listed as net gain (loss) on sale of securities AFS on the consolidated statements of income.
[4] | Included in interest expense for FHLB borrowings and deposits on the consolidated statements of income.

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