Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 12.0	$ 21.1	$ 73.0	$ 52.1
Effective income tax rate	6.60%	21.60%	12.90%	18.20%
Effective income tax rate reconciliation, deduction, amount	$ 20.4		$ 20.4