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Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (loss) Pre-Tax and After-Tax (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
After-tax |  |  |  |  |  |
Other comprehensive income (loss) | $ (29,656) | $ (42,910) | $ 7,996 | $ (16,910) | $ (72,566) | $ (8,914)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent |  |  |  |  |  |
Pre-tax |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (40,272) |  | 10,264 |  | (97,433) | (12,161)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 949 |  | 245 |  | 1,213 | 447
Other comprehensive income (loss) | (39,323) |  | 10,509 |  | (96,220) | (11,714)
Tax |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (9,900) |  | 2,454 |  | (23,952) | (2,907)
Income taxes | 233 |  | 59 |  | 298 | 107
Other comprehensive income (loss) | (9,667) |  | 2,513 |  | (23,654) | (2,800)
After-tax |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (30,372) |  | 7,810 |  | (73,481) | (9,254)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 716 |  | 186 |  | 915 | 340
Other comprehensive income (loss) | $ (29,656) |  | $ 7,996 |  | $ (72,566) | $ (8,914)

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