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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Income Taxes |  |  |  |
Effective tax rate (as a percent) | 27.20% | 23.10% | 27.10% | 23.20%
Statutory Federal income tax rate (as a percent) | 21.00% | 21.00% | 21.00% | 21.00%
Discrete tax benefit |  | $ 1.5 | $ 1.4 | $ 1.5
Offset of discrete tax benefit |  |  |  | $ 3.6

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