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Income Taxes - Computed Amount and Differences in Provision for Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Pretax income | $ 579.8 | $ 470.3 | $ 532.9
Computed amount at statutory rate of 21% | 121.8 | 98.8 | 111.9
State and local income tax (net of federal tax benefit) | 8.0 | 5.9 | 8.2
Taxes on non-U.S. earnings-net of foreign tax credits | 9.2 | 8.4 | 6.3
Global Intangible Low-Taxed Income | 0.4 | (2.7) | 2.3
Foreign-Derived Intangible Income Deduction | (7.5) | (4.9) | (5.8)
Share-based payments | (3.5) | (9.8) | (11.0)
Other | 2.1 | (3.2) | (4.5)
Total provision for income taxes | $ 130.5 | $ 92.5 | $ 107.4
Computed amount at statutory rate of 21% | 21.00% | 21.00% | 21.00%
State and local income tax (net of federal tax benefit) | 1.40% | 1.30% | 1.50%
Taxes on non-U.S. earnings-net of foreign tax credits | 1.60% | 1.80% | 1.20%
Global Intangible Low-Taxed Income | 0.10% | (0.60%) | 0.40%
Foreign-Derived Intangible Income Deduction | (1.30%) | (1.00%) | (1.10%)
Share-based payments | (0.60%) | (2.10%) | (2.10%)
Other | 0.30% | (0.70%) | (0.70%)
Total provision for income taxes | 22.50% | 19.70% | 20.20%

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