RESTRUCTURING CHARGES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Restructuring and Related Costs [Line Items]
Restructuring charges	$ (6.8)	$ 2.4	$ (1.1)	$ 4.8
Restructuring reserve release	(9.0)		(9.0)
Amounts remaining to be incurred	13.7		13.7
Employee Separation Costs
Restructuring and Related Costs [Line Items]
Restructuring charges	0.4		3.3
Other restructuring costs
Restructuring and Related Costs [Line Items]
Restructuring charges	$ 1.8		$ 4.6