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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense | $ 1,685 | $ 728 | $ 2,323 | $ 1,253
Pre-tax income | $ 11,249 | $ 6,162 | $ 15,577 | $ 4,829
Effective income tax rate (percent) | 15.00% | 11.80% | 14.90% | 25.90%

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