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Income Taxes - Schedule of Consolidated Provision for Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Income Tax Provision |  |
Income tax expense | $ 55.4 | $ 45.0
Deferred income tax expense related to intangibles | 17.1 | 14.8
Non- controlling Interests |  |
Income Tax Provision |  |
Income tax expense | 2.1 | 2.5
Controlling Interest |  |
Income Tax Provision |  |
Income tax expense | 53.3 | 42.5
Income before income taxes (controlling interest) | $ 203.1 | $ 177.0
Effective tax rate (controlling interests) | 26.20% | 24.00%

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- Definition The component of income tax expense for the period representing the tax effect of the difference between amortization of intangibles for book purposes and amortization of intangibles for tax purposes. + References No definition available. + Details
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- Definition This element represents the income or loss from continuing operations, before income taxes, which is attributable to the controlling interest. + References No definition available. + Details
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