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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of Income Tax Provision and Effective Tax Rate |
|  | First Quarter
(Dollars in millions) |  | 2024 |  | 2023
Provision (benefit) for income taxes |  | $ | 46.4 |  | $ | 44.9
Discrete event expense (benefit): |  |  |  |
Stock-based accounting |  | $ | (5.3) |  | $ | (5.9)
Uncertain tax position reserves (primarily acquisition related) |  | 0.3 |  | 0.3
Other discrete event expense (benefit) |  | 0.6 |  | (0.9)
Discrete event expense (benefit): |  | $ | (4.4) |  | $ | (6.5)
Provision (benefit) for income taxes without discrete event expense (benefit) |  | $ | 50.8 |  | $ | 51.4
Income (loss) before income taxes |  | $ | 225.5 |  | $ | 223.7
Effective tax rate |  | 20.6% |  | 20.1%
Effective tax rate without discrete events |  | 22.5% |  | 23.0%

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 12 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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