Segment Information - Segment Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 2,893.2	$ 2,949.8	$ 2,886.9
Cost of goods and services sold	1,894.7	1,820.6	1,750.7
Research and development	69.1	68.4	58.5
Selling, general and administrative expenses	338.5	353.4	316.9
Operating profit	569.9	676.0	734.0
Stock-based compensation expense	(18.7)	(23.3)	(23.7)
Amortization of intangible assets	3.6	3.6	3.7
Loss on disposal of plant	0.0	(11.6)	0.0
Interest (income) expense and other nonoperating expense (income), net	(15.6)	(22.0)	54.1
Income before income taxes and equity in net income of affiliated companies	585.5	698.0	679.9
Asset-related charges	0.0	0.0	15.3
Assets	3,643.4	3,829.5
Depreciation and Amortization	155.4	137.3	120.6
Capital Expenditures	377.0	362.0	284.6
Severance related costs	(2.5)	(2.8)	8.7
Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,893.2	2,949.8	2,887.2
Cost of goods and services sold
Research and development
Selling, general and administrative expenses
Other expense (income)
Operating profit	650.1	782.2	844.8
Corporate and Unallocated
Segment Reporting Information [Line Items]
Stock-based compensation expense	(18.7)	(23.3)	(23.7)
Corporate general costs	(58.6)	(68.3)	(59.1)
Restructuring and related charges, net	2.1	(2.0)	23.8
Amortization of intangible assets	0.8	0.7	0.7
Cost investment activity	0.0	(4.3)	(3.5)
Loss on disposal of plant	0.0	(11.6)	0.0
Asset-related charges			15.3
Assets	410.1	672.9
Depreciation and Amortization	3.8	4.0	4.7
Capital Expenditures	9.5	12.7	13.3
Severance related costs			8.7
Corporate and Unallocated | Selling, General and Administrative Expenses
Segment Reporting Information [Line Items]
Restructuring and related charges, net	$ 4.6
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, general and administrative expenses
Corporate and Unallocated | Other expense (income)
Segment Reporting Information [Line Items]
Restructuring and related charges, net	$ (2.5)	$ (2.8)
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other expense (income)	Other expense (income)
Corporate and Unallocated | Cost of goods and services sold
Segment Reporting Information [Line Items]
Restructuring and related charges, net		$ 0.8
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Cost of goods and services sold
Proprietary Products | Operating Segments
Segment Reporting Information [Line Items]
Net sales	$ 2,334.5	$ 2,397.3	2,406.8
Cost of goods and services sold	1,434.0	1,363.3	1,353.5
Research and development	69.1	68.4	58.5
Selling, general and administrative expenses	231.5	240.6	212.6
Other expense (income)	22.1	14.9	(2.2)
Operating profit	577.8	710.1	784.4
Assets	2,621.1	2,629.1
Depreciation and Amortization	130.3	112.9	96.9
Capital Expenditures	246.5	259.1	237.3
Contract-Manufactured Products | Operating Segments
Segment Reporting Information [Line Items]
Net sales	558.7	552.5	480.4
Cost of goods and services sold	460.7	456.5	397.5
Research and development	0.0	0.0	0.0
Selling, general and administrative expenses	26.2	24.4	20.9
Other expense (income)	(0.5)	(0.5)	1.6
Operating profit	72.3	72.1	60.4
Assets	612.2	527.5
Depreciation and Amortization	21.3	20.4	19.0
Capital Expenditures	$ 121.0	$ 90.2	$ 34.0