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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Income Tax Disclosure [Abstract] |  |  |  |
Income taxes | $ 30.7 | $ 34.3 | $ 93.5 | $ 104.2
Effective income tax rate | 27.20% | 22.60% | 25.90% | 20.30%
Total amount of unrecognized tax benefits, including related interest and penalties | $ 82.9 |  | $ 82.9 |
Unrecognized tax benefits excluding interest and penalties that if recognized would affect the effective tax rate | 55.7 |  | 55.7 |
Total accrued interest for tax contingencies | 17.3 |  | 17.3 |
Total accrued penalties for tax contingencies | 3.1 |  | 3.1 |
Amount of unrecognized tax benefits that could decrease within the next 12 months | 8.7 |  | 8.7 |
Decrease in unrecognized tax benefits expiration of statute of limitations | 7.8 |  | 7.8 |
Decrease in unrecognized tax benefits due to the settlement of audits or resolution of administrative or judicial proceedings | $ 0.9 |  | $ 0.9 |

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