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v3.25.0.1

Business Combinations, Asset Acquisitions, and Joint Venture Formation (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
May 01, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Business Acquisition [Line Items] |  |  |
BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable |  | $ (0.8) |
BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentTotalLiabilitiesAssumed |  | (0.8) |
BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired |  | 0.1 |
Goodwill, Measurement Period Adjustment |  | (0.1) |
Business Acquisition, Pro Forma Revenue |  | 1,572.4 | $ 1,750.8
Business Acquisition, Pro Forma Net Income (Loss) |  | 183.0 | $ 124.1
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment |  | 1.0 |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  | 341.3 |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  | (27.0) |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |  | 0.9 |
BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets |  | 0.1 |
Augusta, Georgia Mill Acquisition |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Consideration Transferred | $ 708.2 | 708.2 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | 102.8 | 102.8 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | 0.4 | 0.4 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 609.3 | 610.3 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | 11.8 | 11.8 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 724.3 | 725.2 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-Term Debt | (0.6) | (0.6) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | (7.7) | (8.5) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt | (8.9) | (8.9) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | (12.6) | (12.6) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | (29.7) | (30.5) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 694.5 | 694.7 |
Goodwill | 13.7 | 13.6 |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | $ 708.2 | $ 708.2 |

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