Employee Benefits - Schedule of Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net (gain) loss	$ (8.5)	$ 2.2	$ (4.0)
Total recognized in other comprehensive (income) loss	(8.5)	2.2	(4.0)
Total recognized in net periodic benefit cost and other comprehensive (income) loss	$ (2.4)	$ 8.7	$ 2.8