Derivatives Narrative (Details) € in Millions, £ in Millions, $ in Millions	Jun. 30, 2025 USD ($)	Jun. 30, 2025 GBP (£)	Jun. 30, 2025 EUR (€)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)
Foreign Currency Forward & Foreign Currency Option Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 234.6			$ 228.1
Foreign Exchange Forward [Member] \| Dowlais Group plc
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	783.8	£ 571.0
Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	206.3		€ 175.0	$ 181.2	€ 175.0
Interest Rate Swaps Through Q3 2027 \| Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	700.0
Interest Rate Swap Q3 2027 Through Q4 2029 \| Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 200.0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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