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Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions |  |  |  | 8 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 | Dec. 18, 2024 | May 01, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Nov. 08, 2023 | Dec. 31, 2022
Preliminary Allocation |  |  |  |  |  |  |
Accrued and other current liabilities |  |  |  |  |  | $ (0.2) |
Goodwill | $ 1,478.0 |  |  | $ 1,478.0 | $ 1,202.5 |  | $ 1,177.6
PFB Holdco, Inc |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Total cash consideration transferred | 268.9 | $ 268.9 |  |  |  |  |
Preliminary Allocation |  |  |  |  |  |  |
Cash and cash equivalents |  | 6.4 |  |  |  |  |
Receivables, net |  | 9.6 |  |  |  |  |
Inventories |  | 14.5 |  |  |  |  |
Prepaid expenses and other current assets |  | 6.6 |  |  |  |  |
Property, plant and equipment |  | 31.7 |  |  |  |  |
Definite-lived intangible assets |  | 112.8 |  |  |  |  |
Other long-term assets |  | 46.1 |  |  |  |  |
Accounts payable |  | (4.6) |  |  |  |  |
Accrued and other current liabilities |  | (27.8) |  |  |  |  |
Deferred income taxes |  | (27.9) |  |  |  |  |
Other long-term liabilities |  | (43.5) |  |  |  |  |
Total identifiable net assets |  | 123.9 |  |  |  |  |
Goodwill |  | $ 145.0 |  |  |  |  |
MTL Holdings LLC |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Total cash consideration transferred | 424.6 |  | $ 423.1 |  |  |  |
Preliminary Allocation |  |  |  |  |  |  |
Cash and cash equivalents | 10.3 |  | 10.3 | 10.3 |  |  |
Receivables, net | 14.0 |  | 14.0 | 14.0 |  |  |
Inventories | 17.2 |  | 17.2 | 17.2 |  |  |
Prepaid expenses and other current assets | 0.9 |  | 0.9 | 0.9 |  |  |
Property, plant and equipment | 10.4 |  | 10.7 | 10.4 |  |  |
Definite-lived intangible assets | 248.3 |  | 248.3 | 248.3 |  |  |
Other long-term assets | 8.1 |  | 8.1 | 8.1 |  |  |
Accounts payable | (5.9) |  | (5.9) | (5.9) |  |  |
Accrued and other current liabilities | (6.1) |  | (6.1) | (6.1) |  |  |
Deferred income taxes | (6.9) |  | (6.9) | (6.9) |  |  |
Other long-term liabilities | (6.7) |  | (6.7) | (6.7) |  |  |
Total identifiable net assets | 283.6 |  | 283.9 | 283.6 |  |  |
Goodwill | $ 141.0 |  | $ 139.2 | 141.0 |  |  |
MTL Holdings LLC | Measurement Period Adjustments |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Total cash consideration transferred |  |  |  | 1.5 |  |  |
Measurement Period Adjustments |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 0.0 |  |  |
Receivables, net |  |  |  | 0.0 |  |  |
Inventories |  |  |  | 0.0 |  |  |
Prepaid expenses and other current assets |  |  |  | 0.0 |  |  |
Property, plant and equipment |  |  |  | (0.3) |  |  |
Definite-lived intangible assets |  |  |  | 0.0 |  |  |
Other long-term assets |  |  |  | 0.0 |  |  |
Accounts payable |  |  |  | 0.0 |  |  |
Accrued and other current liabilities |  |  |  | 0.0 |  |  |
Deferred income taxes |  |  |  | 0.0 |  |  |
Other long-term liabilities |  |  |  | 0.0 |  |  |
Total identifiable net assets |  |  |  | (0.3) |  |  |
Goodwill |  |  |  | $ 1.8 |  |  |

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