Discontinued Operations - Operating Results (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating expenses:
Gain on sale of discontinued operations, net of tax	$ 11.7
Discontinued Operations, Disposed of by Sale | Plamenca
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	413.5	$ 352.9	$ 466.8
Cost of sales	234.6	249.6	302.9
Gross profit	178.9	103.3	163.9
Operating expenses:
Selling, general and administrative	75.6	99.3	100.6
Research and development	16.1	14.1	21.5
Operating profit (loss)	87.2	(10.1)	41.8
Income tax expense (benefit)	21.9	(0.9)	8.3
Income (loss) from discontinued operations	65.3	(9.2)	33.5
Gain on sale of discontinued operations, net of tax	11.7	0.0	0.0
Net income (loss) from discontinued operations	$ 77.0	$ (9.2)	$ 33.5