Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,899.8	$ 1,726.0	$ 1,834.1
Cost of sales	1,224.4	1,103.6	1,177.8
Gross profit	675.4	622.4	656.3
Operating expenses:
Selling, general and administrative expenses	368.7	332.2	359.0
Impairment charges	142.4	147.5
Research and development expenses	63.9	57.8	59.1
Restructuring costs	3.0	7.4	14.1
Total operating expenses	578.0	544.9	432.2
Income from operations	97.4	77.5	224.1
Other non-operating income and expense:
Interest expense, net	94.5	72.1	73.8
Other non-operating (income)/expense, net	(4.9)	1.4	2.1
Total other non-operating (income) expense, net	89.6	73.5	75.9
Income before income taxes	7.8	4.0	148.2
(Benefit)/Provision for income taxes	(19.9)	29.5	21.0
Net income/(loss)	$ 27.7	$ (25.5)	$ 127.2
Weighted average shares, basic	64.8	64.6	64.3
Weighted average shares, diluted	65.4	64.6	64.5
Net income/(loss) per share:
Basic	$ 0.43	$ (0.39)	$ 1.98
Diluted	0.42	(0.39)	1.97
Cash dividend declared per share	$ 0.30	$ 0.31	$ 0.68