v3.26.1
Derivative Financial Instruments and Hedging - Schedule of Derivatives Designated as Cash Flow Hedges (Details) - Cash Flow Hedging - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivatives $ (2.3) $ (3.4) $ (0.5) $ 1.5
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income 0.3 (1.2) 2.5 (2.0)
Nickel and other raw material contracts        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivatives (1.4) (1.4) (0.5) (0.7)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income 1.1 (1.2) 1.5 (2.2)
Natural gas contracts        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivatives (1.0) (1.9) (0.4) 2.4
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (0.9) 0.0 0.7 0.1
Foreign exchange contracts        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Recognized in OCI on Derivatives 0.1 (0.1) 0.4 (0.2)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income $ 0.1 $ 0.0 $ 0.3 $ 0.1