Business Segments - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2024 USD ($)	Oct. 01, 2023 USD ($)	Sep. 29, 2024 USD ($) segment	Oct. 01, 2023 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of business segments | segment			2
Employee retention credits	$ 4.8		$ 13.4
Restructuring and other charges	(4.3)	$ (4.2)	(12.8)	$ (14.6)
Restructuring charges (credits)	0.5	(0.5)	(1.2)	2.2
Gains from disposal of property, plant and equipment, net	3.7	0.0	3.7	0.3
Start Up Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)	2.5	2.8	7.2	8.5
Asset Write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)				2.0
Inventory write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)	(0.4)		5.1
Transaction costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)	1.7		1.7
Unplanned Outage Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (credits)		$ 1.9		$ 1.9
High Performance Materials & Components
Restructuring Cost and Reserve [Line Items]
Employee retention credits	2.9		6.4
Advanced Alloys & Solutions
Restructuring Cost and Reserve [Line Items]
Employee retention credits	$ 1.9		$ 7.0