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Income Taxes (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) subsidiary	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) subsidiary	Sep. 30, 2024 USD ($)
Income Tax Disclosure [Abstract]
Effective income tax rate, percent	(60.50%)	25.70%	(6.10%)	27.80%
Valuation allowance increase	$ 16.5		$ 16.5
Number of subsidiaries, no longer projecting future taxable income to offset losses | subsidiary	1		1
Net increases (decreases) in unrecognized tax positions	$ (149.7)	$ 2.2	$ (189.2)	$ 9.1
Net income reflected in discontinued operations	$ 69.4		$ 64.9

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

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