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Basis of Presentation and Summary of Significant Accounting Policies Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Income tax expense on operations at estimated rate | $ 70 | $ 1,028 | $ 4,691 | $ 5,423
Impact of discrete items | 17 | 159 | 219 | (358)
Impact of divested business | 860 | 0 | 860 | 0
Total tax provision | $ 947 | $ 1,187 | $ 5,770 | $ 5,065
Tax rate on operations (including discrete items) | 5.70% | 35.00% | 27.70% | 26.20%
Impact of divested business | 56.40% | 0.00% | 4.80% | 0.00%
Total effective tax rate | 62.10% | 35.00% | 32.50% | 26.20%
Income taxes before discrete items | 4.60% | 30.30% | 26.50% | 28.00%

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