RESTRUCTURING CHARGES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Restructuring and Related Costs [Line Items]
Restructuring charges	$ 2.4	$ 3.7	$ 4.8	$ 7.2
Amounts remaining to be incurred	14.8		14.8
Employee Separation Costs
Restructuring and Related Costs [Line Items]
Restructuring charges	1.6		2.7
Other restructuring costs
Restructuring and Related Costs [Line Items]
Restructuring charges	$ 0.8		$ 2.1