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Other Comprehensive Income - Summary of Components of OCI (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Equity [Abstract] |  |  |  |
Net change in fair value recorded in accumulated OCI, Before-tax | $ (2,292) | $ (37,996) | $ (38,148) | $ 2,428
Net change in fair value recorded in accumulated OCI, Tax effect | 678 | 11,233 | 11,278 | (718)
Net change in fair value recorded in accumulated OCI, After-tax | (1,614) | (26,763) | (26,870) | 1,710
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, Before-tax | 175 | 3,532 | 337 | 3,810
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, Tax effect | (52) | (3,364) | (100) | (3,446)
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax | 123 | 168 | 237 | 364
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) Before - Tax | 2,835 | 11,129 | 20,667 | 11,129
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) Tax effect | (947) | (3,283) | (5,909) | (3,283)
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Fair value hedges) After Tax | 1,888 | 7,846 | 14,758 | 7,846
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) Before - Tax | 795 | 0 | 1,584 | 0
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) Tax Effect | (235) | 0 | (468) | 0
Net change in fair value recorded in accumulated OCI (Derivatives designated as hedging instruments, Cash flow hedges) After - Tax | 560 | 0 | 1,116 | 0
Net change, Before-tax | 1,513 | (23,335) | (15,560) | 17,367
Net change, Tax effect | (556) | 4,586 | 4,801 | (7,447)
Net change, After-tax | $ 957 | $ (18,749) | $ (10,759) | $ 9,920

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