Stock-Based Compensation - Compensation Costs Related to Stock-Based Awards (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 19.4	$ 22.1	$ 21.8
Related tax benefit from stock-based compensation awards	4.7	5.3	5.2
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	8.5	10.0	10.0
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	2.9	5.8	6.8
Restricted stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	6.9	5.7	4.3
Unrestricted common stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 1.1	$ 0.6	$ 0.7