Discontinued Operations - Schedule of Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Income from discontinued operations, net of tax	$ 0.0	$ 5.1	$ 77.0
Discontinued operations disposed of by sale | Plamenca
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales		11.7	413.5
Cost of sales		9.1	234.6
Gross profit		2.6	178.9
Operating expenses:
Selling, general and administrative		3.2	75.6
Research and development		0.0	16.1
Operating (loss) income		(0.6)	87.2
Income tax expense		0.0	21.9
(Loss) income from discontinued operations		(0.6)	65.3
Gain on sale of discontinued operations, net of tax		5.7	11.7
Income from discontinued operations, net of tax		$ 5.1	$ 77.0