Income Tax Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Earnings (loss) from continuing operations before income taxes	$ 49.7	$ (300.1)
Income tax expense (benefit)	$ 12.2	$ (77.5)
Effective tax rate	24.60%	25.80%