Derivatives Narrative (Details) € in Millions, £ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 EUR (€)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 GBP (£)	Dec. 31, 2025 EUR (€)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Settlement of Business Combination Derivative	$ 65.9	$ 0.0
Foreign Currency Forward & Foreign Currency Option Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	903.3			$ 216.2
Foreign Exchange Forward [Member] \| Dowlais Group plc
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount				769.2	£ 571.0
Fair Value Hedge - Q2 2027 \| Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	199.9		€ 175.0	$ 205.5		€ 175.0
Fair Value Hedge - Q1 2028 \| Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	228.5		200.0
Fair Value Hedge - Q1 2029 \| Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	228.5		€ 200.0
Interest Rate Swaps Through Q4 2028 \| Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,000.0
Interest Rate Swaps Through Q4 2030 \| Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	900.0
Interest Rate Swaps Through Q4 2031 \| Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 500.0