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Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (loss) Pre-Tax and After-Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022
After-tax |  |  |  |  |  |  |  |
Other comprehensive income (loss) | $ (11,258) | $ (5,866) | $ 13,791 | $ (27,531) | $ (29,656) | $ (42,910) | $ (3,333) | $ (100,097)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent |  |  |  |  |  |  |  |
Pre-tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (14,942) |  |  | (36,715) |  |  | (5,151) | (134,148)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 10 |  |  | 210 |  |  | 732 | 1,423
Other comprehensive income (loss) | (14,932) |  |  | (36,505) |  |  | (4,419) | (132,725)
Tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (3,677) |  |  | (9,026) |  |  | (1,266) | (32,978)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 3 |  |  | 52 |  |  | 180 | 350
Other comprehensive income (loss) | (3,674) |  |  | (8,974) |  |  | (1,086) | (32,628)
After-tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (11,265) |  |  | (27,689) |  |  | (3,885) | (101,170)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 7 |  |  | 158 |  |  | 552 | 1,073
Other comprehensive income (loss) | $ (11,258) |  |  | $ (27,531) |  |  | $ (3,333) | $ (100,097)

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