Consolidated Statements of Income (Loss) (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025		Jun. 30, 2024
Income Statement [Abstract]
Net sales		$ 394.8	$ 438.3	$ 712.2		$ 797.2
Cost of products sold		265.1	285.7	482.9		534.2
Gross profit		129.7	152.6	229.3		263.0
Operating costs and expenses:
Selling, general and administrative expenses		82.6	88.0	175.3		182.2
Amortization of intangibles		11.6	10.9	22.9		21.5
Restructuring		9.4	(0.3)	11.7	[1]	(0.6)
Gain on disposal of assets		(6.9)	0.0	(6.9)		0.2
Impairment of goodwill and intangible assets		0.0	165.2	0.0		165.2
Total operating costs and expenses		96.7	263.8	203.0		368.3
Operating income (loss)		33.0	(111.2)	26.3		(105.3)
Non-operating expense (income):
Interest expense		11.9	13.8	22.7		27.1
Interest income		(3.0)	(2.2)	(4.9)		(4.1)
Non-operating pension expense		0.6	4.8	1.1		5.2
Other expense (income), net		0.8	(0.2)	1.2		(0.8)
Income (loss) before income tax		22.7	(127.4)	6.2		(132.7)
Income tax benefit		(6.5)	(2.2)	(9.8)		(1.2)
Net income (loss)		$ 29.2	$ (125.2)	$ 16.0		$ (131.5)
Per share:
Basic income (loss) per share		$ 0.32	$ (1.29)	$ 0.17		$ (1.37)
Diluted income (loss) per share		$ 0.31	$ (1.29)	$ 0.17		$ (1.37)
Weighted average number of shares outstanding:
Basic (in shares)		91.6	96.8	92.5		96.3
Diluted (in shares)	[2]	93.1	96.8	94.3		96.3

[1] We expect $15.6 million of the remaining $23.4 million of restructuring costs to be paid in the next twelve months.

[2] Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.