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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |  |  |
Effective income tax rate | 12.90% | (0.40%) | 19.30% | (1.60%) |
Reserve for uncertain tax positions | $ 686 |  | $ 686 |  | $ 631
Decrease in unrecognized tax benefits is reasonably possible | $ 175 |  | $ 175 |  |

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