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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Mar. 27, 2020 | Dec. 31, 2019
Income Taxes [Abstract] |  |  |  |  |  |
Effective income tax rate | 31.00% | 87.00% | 23.00% | 2375.00% |  |
Valuation allowances against deferred tax assets | $ 2.7 |  | $ 2.7 |  |  | $ 3.2
Net deferred tax liability | $ 21.5 |  | $ 21.5 |  |  | $ 20.4
Reduction to income taxes payable and deferred tax assets |  |  |  |  | $ 1.3 |

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