Derivative Financial Instruments and Hedging (Details) € in Millions, lb in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025 USD ($)	Sep. 29, 2024 USD ($)	Sep. 28, 2025 USD ($) lb	Sep. 29, 2024 USD ($)	Sep. 28, 2025 EUR (€)
Derivative Instruments Gain Loss [Line Items]
Percentage of estimated annual nickel requirements			2.00%
Percentage Of Forecasted Natural Gas Usage Hedged for 2025			60.00%
Percentage Of Forecasted Natural Gas Usage Hedged for 2026			35.00%
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract]
Cash Flow Hedge Gain (Loss) To Be Reclassified Within Twelve Months			$ (1.1)
Cash Flow Hedging | Other Comprehensive Income (Loss) [Member]
Derivative Instruments Gain Loss [Line Items]
Net derivative gain (loss) on hedge transactions	$ (2.5)	$ (1.5)	$ (1.0)	$ (3.3)
Nickel
Derivative Instruments Gain Loss [Line Items]
Notional amount of nickel hedge (in pounds of nickel) | lb			1
Interest Rate Swap | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member]
Derivative Instruments Gain Loss [Line Items]
Net derivative gain (loss) on hedge transactions	0.0	0.0	$ 0.0	0.0
Nickel and other raw material contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member]
Derivative Instruments Gain Loss [Line Items]
Net derivative gain (loss) on hedge transactions	0.0	(0.2)	(0.7)	(1.3)
Natural gas contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member]
Derivative Instruments Gain Loss [Line Items]
Net derivative gain (loss) on hedge transactions	(2.6)	(1.1)	(0.2)	(2.1)
Foreign exchange contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member]
Derivative Instruments Gain Loss [Line Items]
Net derivative gain (loss) on hedge transactions	0.1	(0.2)	(0.1)	0.1
Designated as Hedging Instrument | Foreign exchange forward | Cash Flow Hedging
Derivative Instruments Gain Loss [Line Items]
Notional amount of derivative | €					€ 0
Not Designated as Hedging Instrument | Foreign exchange forward
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Recognized In Income Net	$ (0.6)	$ 1.0	$ 2.3	$ 0.5