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v3.25.2

Derivative Financial Instruments and Hedging (Details2) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 29, 2025 | Jun. 30, 2024 | Jun. 29, 2025 | Jun. 30, 2024 | Dec. 29, 2024
Cash Flow Hedging |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Amount of gain (loss) reclassified from accumulated OCI into Income | $ (1.2) | $ (2.0) | $ (2.0) | $ (3.3) |
Cash Flow Hedging | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Net derivative gain (loss) on hedge transactions | (3.4) | (0.4) | 1.5 | (1.8) |
Nickel and other raw material contracts | Cash Flow Hedging |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Amount of gain (loss) reclassified from accumulated OCI into Income | (1.2) | (1.1) | (2.2) | (1.1) |
Nickel and other raw material contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Net derivative gain (loss) on hedge transactions | (1.4) | (0.9) | (0.7) | (1.1) |
Interest Rate Swap | Cash Flow Hedging |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Amount of gain (loss) reclassified from accumulated OCI into Income | 0.0 | 0.9 | 0.0 | 1.2 |
Interest Rate Swap | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Net derivative gain (loss) on hedge transactions | 0.0 | 0.0 | 0.0 | 0.0 |
Natural gas contracts | Cash Flow Hedging |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Amount of gain (loss) reclassified from accumulated OCI into Income | 0.0 | (1.8) | 0.1 | (3.6) |
Natural gas contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Net derivative gain (loss) on hedge transactions | (1.9) | 0.4 | 2.4 | (1.0) |
Foreign exchange contracts | Cash Flow Hedging |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Amount of gain (loss) reclassified from accumulated OCI into Income | 0.0 | 0.0 | 0.1 | 0.2 |
Foreign exchange contracts | Cash Flow Hedging | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Net derivative gain (loss) on hedge transactions | (0.1) | $ 0.1 | (0.2) | $ 0.3 |
Designated as Hedging Instrument |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Asset | 3.1 |  | 3.1 |  | $ 1.9
Derivative Fair Value Of Derivative Liability | 2.6 |  | 2.6 |  | 6.0
Designated as Hedging Instrument | Nickel and other raw material contracts | Accrued liabilities |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Liability | 2.2 |  | 2.2 |  | 4.2
Designated as Hedging Instrument | Nickel and other raw material contracts | Other long-term liabilities |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Liability | 0.1 |  | 0.1 |  | 0.0
Designated as Hedging Instrument | Natural gas contracts | Prepaid expenses and other current assets |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Asset | 2.3 |  | 2.3 |  | 0.8
Designated as Hedging Instrument | Natural gas contracts | Other assets |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Asset | 0.8 |  | 0.8 |  | 0.9
Designated as Hedging Instrument | Natural gas contracts | Accrued liabilities |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Liability | 0.2 |  | 0.2 |  | 1.7
Designated as Hedging Instrument | Natural gas contracts | Other long-term liabilities |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Liability | 0.0 |  | 0.0 |  | 0.1
Designated as Hedging Instrument | Foreign exchange contracts | Prepaid expenses and other current assets |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Asset | 0.0 |  | 0.0 |  | 0.2
Designated as Hedging Instrument | Foreign exchange contracts | Accrued liabilities |  |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |  |
Derivative Fair Value Of Derivative Liability | $ 0.1 |  | $ 0.1 |  | $ 0.0

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