NET INCOME PER COMMON SHARE - Calculations of Basic and Diluted Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income	$ 38.5	$ 76.0
Weighted-average common and common equivalent shares outstanding — Basic (in shares)	66.3	67.9
Effect of dilutive securities
Weighted-average common and common equivalent shares outstanding — Diluted (in shares)	66.8	68.3
Net income per common share
Basic (in USD per share)	$ 0.58	$ 1.12
Diluted (in USD per share)	$ 0.58	$ 1.11
Restricted stock units
Effect of dilutive securities
Effect of dilutive securities (in shares)	0.2	0.2
Performance shares
Effect of dilutive securities
Effect of dilutive securities (in shares)	0.2	0.2