Income Taxes - Provision for Income Taxes and Effective Income Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income before income taxes	$ 142.6	$ 100.7
Provision (benefit) for income taxes	$ 32.4	$ 10.6
Effective income tax provision rate (as a percent)	22.70%	10.50%