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Income Taxes - Factors Effecting Effective Tax Rate from U.S. Federal Statutory Rate (Detail) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Statutory rate | 21.00% | 21.00% | 21.00%
Foreign income inclusions | 2.10% | 3.30% | 1.70%
Foreign tax rate differential | 0.90% | 0.90% | 1.00%
Tax charge/(credit) from previous years | (2.60%) | 0.20% | 0.60%
Net charge/(credit) from unrecognized tax benefits | 0.70% | (1.40%) | 0.40%
Foreign currency transactions | (1.40%) | 3.50% | 0.10%
Tax on unremitted earnings | 1.40% | 0.30% | 0.10%
Change in U.K. statutory tax rate | 0.00% | 0.00% | 5.40%
State and local taxes | 1.00% | 2.20% | 1.30%
US incentive for foreign derived intangible income | (2.80%) | (2.70%) | (1.50%)
Innovation incentives | (1.30%) | (0.80%) | (1.10%)
Non-deductible officer compensation | 1.00% | 1.40% | 0.20%
Tax on closure of legacy operations | 0.00% | 0.00% | 1.60%
Other items and adjustments, net | 0.20% | 0.10% | (0.10%)
Effective Income Tax Rate | 20.20% | 28.00% | 30.70%

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