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Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Comprehensive Income Net Of Tax [Abstract] |  |  |
Unrealized holding gains (losses) on available-for-sale securities during the period, pre-tax |  | $ (12,217) | $ 5,821
Reclassification adjustment for (gains) losses included in net income, pre-tax | [1] | (256) | 34
Net other comprehensive income (loss), pre-tax |  | (12,473) | 5,855
Unrealized holding gains (losses) on available-for-sale securities during the period, tax |  | 2,565 | (1,223)
Reclassification adjustment for (gains) losses included in net income, tax | [1] | 54 | (7)
Net other comprehensive income (loss), tax |  | 2,619 | (1,230)
Unrealized holding gains (losses) on available-for-sale securities during the period, after tax |  | (9,652) | 4,598
Reclassification adjustment for (gains) losses included in net income, after-tax | [1] | (202) | 27
Other comprehensive income (loss), net of tax |  | $ (9,854) | $ 4,625
[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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