Stock-Based Compensation - Schedule of Compensation Costs Related to Stock-Based Awards (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 19.0	$ 23.0	$ 19.4
Related tax benefit from stock-based compensation awards	4.6	5.6	4.7
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	8.8	14.6	8.5
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	3.1	(0.2)	2.9
Restricted stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	6.4	8.0	6.9
Unrestricted common stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost for stock-based awards	$ 0.7	$ 0.6	$ 1.1