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CONTINGENT LIABILITIES AND ENVIRONMENTAL RESERVES (Details) - USD ($) $ in Millions	Apr. 30, 2025	Oct. 31, 2024
Site Contingency [Line Items]
Environmental liability reserves	$ 19.8	$ 19.1
Diamond Alkali
Site Contingency [Line Items]
Environmental liability reserves		$ 9.8

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

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