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Discontinued Operations - Schedule of Major Classes of Assets and Liabilities from Discontinued Operations (Details) - Engineered Materials - Discontinued Operations, Held-for-sale - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Assets: |  |
Accounts receivable, net | $ 18.2 | $ 8.8
Inventories, net | 9.1 | 8.5
Other current assets | 0.2 | 0.1
Property, plant and equipment, net | 26.7 | 26.8
Other assets | 0.3 | 0.6
Intangible assets, net | 1.2 | 1.2
Goodwill | 171.3 | 171.3
Assets held for sale | 227.0 | 217.3
Liabilities: |  |
Accounts payable | 23.8 | 19.5
Accrued liabilities | 10.6 | 7.9
Long-term deferred tax liability | 4.6 | 26.1
Other liabilities | 0.1 | 0.1
Liabilities held for sale | $ 39.1 | $ 53.6

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