Income Taxes - Rollforward of Uncertain Tax Positions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Uncertain Tax Positions [Rollforward]
Beginning balance	$ 23.7	$ 18.4	$ 13.5
Additions based on tax positions related to the current year	8.0	4.4	1.5
Additions for tax positions of prior years	17.6	6.8	3.4
Settlements	0.0	(5.1)	0.0
Lapse of statute of limitations	(6.9)	(0.8)	0.0
Ending balance	$ 42.4	$ 23.7	$ 18.4