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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefits would impact effective tax rate if recognized | $ 14.8 |  |  |
Unrecognized tax benefit | 14.8 | $ 13.4 | $ 16.3 | $ 16.0
Income tax examination interest expense | 0.1 |  |  |
Increase to income tax expense | 0.9 |  |  |
Cash payments for income taxes | 54.3 | 50.0 | $ 36.8 |
Deferred tax assets valuation allowance | 0.1 | $ 0.7 |  |
Foreign exchange movements | 0.1 |  |  |
Italian Tax Authorities [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefit | 3.4 |  |  |
Foreign [Member] | Indefinitely [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carry forwards | 8.9 |  |  |
United Kingdom [Member] | Foreign [Member] | Profit Diversion Compliance Facility [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income tax examination interest expense | 0.1 |  |  |
Decrease in uncertain tax positions | (1.2) |  |  |
Foreign exchange movements | 0.1 |  |  |
Income tax examination penalties and interest expenses | 1.2 |  |  |
United States [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefit | 10.2 |  |  |
United States [Member] | Federal [Member] | Indefinitely [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carry forwards | $ 0.3 |  |  |
Non-US [Member] | Earliest Tax Year [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Open tax year | 2011 |  |  |
Non-US [Member] | Latest Tax Year [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Open tax year | 2014 |  |  |
Non-US [Member] | Historical Impairment Of Subsidiaries [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Increase in uncertain tax positions | $ 0.1 |  |  |
Decrease in uncertain tax positions | $ (10.2) |  |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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