Discontinued Operations - Operating Results (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Income (loss) from discontinued operations, net of tax	$ 5.1	$ 77.0	$ (9.2)
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	352.9
Cost of sales	9.1	234.6	249.6
Gross profit	2.6	178.9	103.3
Operating expenses:
Selling, general and administrative	3.2	75.6	99.3
Research and development	0.0	16.1	14.1
Operating (loss) profit	(0.6)	87.2	(10.1)
Income tax expense	0.0	21.9	(0.9)
(Loss) income from discontinued operations	(0.6)	65.3	(9.2)
Gain on sale of discontinued operations, net of tax	5.7	11.7	0.0
Income (loss) from discontinued operations, net of tax	$ 5.1	$ 77.0	$ (9.2)