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Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2025
Equity [Abstract] |
Summary of Components of Other Comprehensive Income | The table below provides a summary of the components of other comprehensive income (“OCI”) for the periods presented.
|  | Three Months Ended June 30, |
|  | 2025 |  |  | 2024 |
|  | Before-tax |  |  | Tax effect |  |  | After-tax |  |  | Before-tax |  |  | Tax effect |  |  | After-tax |
|  | (Dollars in thousands) |
Investment securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  | $ | 24,704 |  |  | $ | (9,099 | ) |  | $ | 15,605 |  |  | $ | (2,292 | ) |  | $ | 678 |  |  | $ | (1,614 | )
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | 172 |  |  |  | (59 | ) |  |  | 113 |  |  |  | 175 |  |  |  | (52 | ) |  |  | 123 |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  |  | (8,633 | ) |  |  | 2,508 |  |  |  | (6,125 | ) |  |  | 2,835 |  |  |  | (947 | ) |  |  | 1,888 |
Cash flow hedges: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  |  | (598 | ) |  |  | 173 |  |  |  | (425 | ) |  |  | 795 |  |  |  | (235 | ) |  |  | 560 |
Net change |  | $ | 15,645 |  |  | $ | (6,477 | ) |  | $ | 9,168 |  |  | $ | 1,513 |  |  | $ | (556 | ) |  | $ | 957 |
|  | Six Months Ended June 30, |
|  | 2025 |  |  | 2024 |
|  | Before-tax |  |  | Tax effect |  |  | After-tax |  |  | Before-tax |  |  | Tax effect |  |  | After-tax |
|  | (Dollars in thousands) |
Investment securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  | $ | 83,982 |  |  | $ | (26,623 | ) |  | $ | 57,359 |  |  | $ | (38,148 | ) |  | $ | 11,278 |  |  | $ | (26,870 | )
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity |  |  | 309 |  |  |  | (100 | ) |  |  | 209 |  |  |  | 337 |  |  |  | (100 | ) |  |  | 237 |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  |  | (16,953 | ) |  |  | 4,968 |  |  |  | (11,985 | ) |  |  | 20,667 |  |  |  | (5,909 | ) |  |  | 14,758 |
Cash flow hedges: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change in fair value recorded in accumulated OCI |  |  | (2,339 | ) |  |  | 688 |  |  |  | (1,651 | ) |  |  | 1,584 |  |  |  | (468 | ) |  |  | 1,116 |
Net change |  | $ | 64,999 |  |  | $ | (21,067 | ) |  | $ | 43,932 |  |  | $ | (15,560 | ) |  | $ | 4,801 |  |  | $ | (10,759 | )

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