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Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Investment land |  | $ 40.6
Total current assets held for sale | $ 807.1 | 73.2
Inventories, net |  | 31.3
Other assets |  | 1.3
Property, plant and equipment |  | 124.5
Intangible assets, excluding goodwill |  | 208.5
Operating lease right-of-use assets |  | 12.1
Goodwill |  | 31.9
Valuation allowance for loss on sale |  | (4.5)
Total noncurrent assets held for sale | 0.0 | 372.5
Lease obligations |  | (4.5)
Total current liabilities held for sale | (18.2) | (4.5)
Lease obligations |  | (4.1)
Asset retirement obligations |  | (17.7)
Total noncurrent liabilities held for sale | 0.0 | (21.8)
Continuing Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Inventories, net | 60.6 |
Investment land | 17.9 | 40.6
Property, plant and equipment | 327.2 |
Intangible assets, excluding goodwill | 122.3 |
Operating lease right-of-use assets | 15.4 |
Goodwill | 260.0 |
Total current assets held for sale | 807.1 | 40.6
Lease obligations | (16.3) |
Asset retirement obligations | (1.9) |
Other assets | 3.7 |
Total current liabilities held for sale | $ (18.2) |
Discontinued Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Total current assets held for sale |  | 32.6
Inventories, net |  | 31.3
Other assets |  | 1.3
Property, plant and equipment |  | 124.5
Intangible assets, excluding goodwill |  | 208.5
Operating lease right-of-use assets |  | 12.1
Goodwill |  | 31.9
Valuation allowance for loss on sale |  | (4.5)
Total noncurrent assets held for sale |  | 372.5
Lease obligations |  | (4.5)
Total current liabilities held for sale |  | (4.5)
Lease obligations |  | (4.1)
Asset retirement obligations |  | (17.7)
Total noncurrent liabilities held for sale |  | $ (21.8)

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