Business, Product and Geographical Area Information - Schedule of Income Taxes Paid by Geographical Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Taxes Paid By Geographical Area [Line Items]
Income taxes paid	$ 1.4	$ 0.3	$ 1.8	$ 0.4
Domestic
Income Taxes Paid By Geographical Area [Line Items]
Income taxes paid	1.1	0.3	1.2	0.3
Foreign
Income Taxes Paid By Geographical Area [Line Items]
Income taxes paid	$ 0.3	$ 0.0	$ 0.6	$ 0.1