Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 472.1	$ 434.2
Cost of sales	300.4	281.2
Gross profit	171.7	153.0
Operating expenses:
Selling, general and administrative expenses	89.8	87.1
Impairment of goodwill and intangible asset		147.5
Research and development expenses	15.9	14.8
Restructuring costs	0.9	1.6
Total operating expenses	106.6	251.0
Income from operations	65.1	(98.0)
Other non-operating income and expense:
Interest expense, net	16.9	17.4
Other non-operating expense/(income), net	(1.5)	(1.5)
Total other non-operating (income) expense, net	15.4	15.9
Income/(Loss) before income taxes	49.7	(113.9)
Provision for income taxes	10.5	2.7
Net income/(loss)	$ 39.2	$ (116.6)
Weighted average shares, basic	64.7	64.5
Weighted average shares, diluted	65.3	64.5
Net income/(loss) per share:
Basic	$ 0.61	$ (1.81)
Diluted	0.60	(1.81)
Cash dividend declared per share	$ 0.06	$ 0.17