CONTINGENT LIABILITIES AND ENVIRONMENTAL RESERVES - (Details) - USD ($) $ in Millions	Oct. 31, 2023	Oct. 31, 2022
Site Contingency [Line Items]
Environmental liability reserves	$ 17.3	$ 19.0
Diamond Alkali
Site Contingency [Line Items]
Environmental liability reserves	9.8	9.8
Other Facilities
Site Contingency [Line Items]
Environmental liability reserves	$ 7.5	$ 9.2