CONDENSED CONSOLIDATED INCOME STATEMENTS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net Sales	$ 184.1	$ 185.7	$ 551.2	$ 529.8
Cost of products sold	93.7	89.9	283.8	245.4
Gross Profit	90.4	95.8	267.4	284.4
Research and development	8.4	8.2	24.7	25.3
Selling and general expenses	75.0	82.4	225.1	250.4
Other expense, net	3.4	5.3	33.7	10.0
Operating Income (Loss)	3.6	(0.1)	(16.1)	(1.3)
Interest income	0.2	0.2	0.2	1.1
Interest expense	(0.9)	(4.3)	(2.6)	(12.9)
Income (Loss) Before Income Taxes	2.9	(4.2)	(18.5)	(13.1)
Income tax (provision) benefit	(38.0)	23.5	13.7	33.1
Net (Loss) Income	$ (35.1)	$ 19.3	$ (4.8)	$ 20.0
(Loss) Earnings Per Share
Basic (in dollars per share)	$ (0.73)	$ 0.40	$ (0.10)	$ 0.42
Diluted (in dollars per share)	$ (0.73)	$ 0.40	$ (0.10)	$ 0.42