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Goodwill and Other Intangible Assets, net - Intangible Assets by Segments (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Other intangibles, net | $ 272.2 | $ 337.6
Performance Materials |  |
Finite-Lived Intangible Assets [Line Items] |  |
Other intangibles, net | 1.7 | 1.9
Performance Chemicals |  |
Finite-Lived Intangible Assets [Line Items] |  |
Other intangibles, net | $ 270.5 | $ 335.7

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