Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Effective tax rate (as a percent)	47.40%	16.70%	35.60%	23.30%
Income tax expense (benefit)	$ (17.5)	$ (0.1)	$ (29.3)	$ (9.4)
Gain (loss) before benefit for income taxes and equity in net income of affiliates	$ (37.0)	$ (0.7)	$ (82.4)	$ (40.5)