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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 82.2	$ 6.0		$ 110.1	$ (298.9)
Income (loss) from continuing operations before income taxes	$ (466.0)	$ 72.5		$ (402.3)	$ 75.0
Effective tax rate (as a percent)	(17.60%)	8.30%		(27.40%)	(398.50%)
Effective income tax rate reconciliation amount			$ 300.0
Valuation allowance	$ 47.0			$ 47.0

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