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Income Taxes - Schedule of Consolidated Provision for Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Income Tax Provision |  |  |  |
Income tax expense | $ 31.3 | $ 77.7 | $ 130.0 | $ 155.4
Deferred income tax (benefit) expense related to intangibles | 16.4 | (13.5) | 50.6 | 16.4
Non- controlling Interests |  |  |  |
Income Tax Provision |  |  |  |
Income tax expense | 1.8 | 1.8 | 6.3 | 5.5
Controlling Interest |  |  |  |
Income Tax Provision |  |  |  |
Income tax expense | 29.5 | 75.9 | 123.7 | 149.9
Income before income taxes (controlling interest) | $ 153.1 | $ 292.9 | $ 473.2 | $ 626.7
Effective tax rate (controlling interests) | 19.30% | 25.90% | 26.10% | 23.90%

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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 Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 + Details
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