Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Income Taxes [Abstract]
Effective tax rate	25.70%	25.50%
Income taxes, impact of previously unrecognized tax benefits	$ 7.5	$ 10.0
Income taxes, impact of real estate repositioning costs and increase in U.K. statutory tax rate		$ 6.0
Unrecognized tax benefits	168.7
Unrecognized tax benefits that would impact effective tax rate	$ 161.8

Income Taxes [Abstract]

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Amount of unrecognized tax benefits.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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