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v3.25.3

Senior Secured Credit Facilities Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |
Payments of Debt Issuance Costs |  |  | $ 11.6 | $ 1.7 |  |  |
Debt refinancing and redemption costs | $ 0.0 | $ 0.2 | 3.3 | $ 0.5 |  |  |
Second Amendment |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 925.0 |  | 925.0 |  |  |  |
Second Amendment | Dowlais Group plc | Forecast [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | $ 1,495.0 |  |
Tranche C Term Facility | Dowlais Group plc |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Secured Debt |  |  |  |  |  | $ 843.0 |
Tranche C Term Facility | Dowlais Group plc | Forecast [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Secured Debt |  |  |  |  | $ 835.0 |  |
Term Loan B [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Secured Debt | 648.0 |  | 648.0 |  |  |  | $ 648.0
Secured Debt [Member] | Second Amendment |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Payments of Debt Issuance Costs |  |  | 11.6 |  |  |  |
Debt refinancing and redemption costs |  |  | 3.3 |  |  |  |
Secured Debt [Member] | Term Loan B [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of Secured Debt |  |  | 8.4 |  |  |  |
Multi Currency Credit Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | 897.1 |  | 897.1 |  |  |  |
Letters of Credit Outstanding, Amount | $ 27.9 |  | $ 27.9 |  |  |  |

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