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v3.25.0.1

Non Operating Income and Expenses (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Other Income and Expenses [Abstract] |  |  |  |  |  |  |  |  |  |  |
Interest Expense, Operating and Nonoperating |  |  |  |  |  |  |  |  | $ (32.0) | $ (11.8) | $ (11.7)
Interest Costs Capitalized Adjustment |  |  |  |  |  |  |  |  | 1.6 | 0.3 | 0.1
Amortization of Debt Issuance Costs |  |  |  |  |  |  |  |  | (1.7) | (0.5) | (0.6)
Interest Income, Other |  |  |  |  |  |  |  |  | 2.9 | 2.4 | 1.0
Interest expense, net | $ (5.3) | $ (13.1) | $ (9.6) | $ (1.2) | $ (1.6) | $ (2.2) | $ (2.9) | $ (2.8) | (29.2) | (9.5) | (11.2)
Debt retirement costs | $ (9.1) | $ 0.0 | $ 0.0 | $ 0.0 | $ (3.1) | $ 0.0 | $ 0.0 | $ 0.0 | $ (9.1) | $ (3.1) | $ (0.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  |  |  |  |  | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense)
Nonoperating Income (Expense) |  |  |  |  |  |  |  |  | $ (36.6) | $ (12.5) | $ (17.4)
Write off of Deferred Debt Issuance Cost |  |  |  |  |  |  |  |  |  | 0.4 |
Redemption Premium |  |  |  |  |  |  |  |  |  | $ 2.7 |

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