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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense | $ 7.6 | $ 7.9 | $ 20.9 | $ 25.4
Excess tax benefit from completion of tax audit |  | $ 0.6 |  | $ 0.6
Excess tax benefit from stock compensation activity | $ 0.7 |  | $ 2.3 |
Effective tax rate | 23.10% | 21.80% | 23.00% | 24.40%
Deferred tax payments under the CARES Act |  |  | $ 3.3 |

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