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Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Comprehensive Income Net Of Tax [Abstract] |  |  |  |  |
Unrealized holding gains (losses) on available-for-sale securities during the period, pre-tax |  | $ 3,960 | $ (4,929) | $ 18,984 | $ (14,057)
Reclassification adjustment for (gains) losses included in net income, pre-tax | [1] | (15) | 27 | 18 | 24
Net other comprehensive income (loss), pre-tax |  | 3,945 | (4,902) | 19,002 | (14,033)
Unrealized holding gains (losses) on available-for-sale securities during the period, tax |  | (831) | 1,036 | (3,974) | 2,940
Reclassification adjustment for (gains) losses included in net income, tax | [1] | 3 | (6) | (4) | (5)
Net other comprehensive income (loss), tax |  | (828) | 1,030 | (3,978) | 2,935
Unrealized holding gains (losses) on available-for-sale securities during the period, after tax |  | 3,129 | (3,893) | 15,010 | (11,117)
Reclassification adjustment for (gains) losses included in net income, after-tax | [1] | (12) | 21 | 14 | 19
Other comprehensive income (loss), net of tax |  | $ 3,117 | $ (3,872) | $ 15,024 | $ (11,098)
[1] | Pre-tax reclassification adjustments relating to available-for-sale securities are reported in security gains and the tax impact is included in income tax expense on the consolidated statements of income.

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