Stock-Based Compensation - Schedule of Compensation Costs Related to Stock-Based Awards (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 23.0	$ 19.4	$ 22.1
Related tax benefit from stock-based compensation awards	5.6	4.7	5.3
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	14.6	8.5	10.0
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	(0.2)	2.9	5.8
Restricted stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	8.0	6.9	5.7
Unrestricted common stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 0.6	$ 1.1	$ 0.6