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Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Comprehensive Income Net Of Tax [Abstract] |  |  |  |  |
Unrealized holding gains (losses) on available-for-sale securities during the period, pre-tax |  | $ 9,203 | $ (242) | $ 15,024 | $ (9,128)
Reclassification adjustment for (gains) losses included in net income, pre-tax | [1] | (1) | (1) | 33 | (3)
Net other comprehensive income (loss), pre-tax |  | 9,202 | (243) | 15,057 | (9,131)
Unrealized holding gains (losses) on available-for-sale securities during the period, tax |  | (1,920) | 39 | (3,150) | 1,904
Reclassification adjustment for (gains) losses included in net income, tax | [1] | 0 | 0 | 0 | 1
Net other comprehensive income (loss), tax |  | (1,920) | 39 | (3,150) | 1,905
Unrealized holding gains (losses) on available-for-sale securities during the period, after tax |  | 7,283 | (203) | 11,874 | (7,224)
Reclassification adjustment for (gains) losses included in net income, after-tax | [1] | (1) | (1) | 33 | (2)
Other comprehensive income (loss), net of tax |  | $ 7,282 | $ (204) | $ 11,907 | $ (7,226)
[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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