Employee Benefits - Schedule of Changes in Benefit Obligation, Changes in Plan Assets and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Retirement Benefits [Abstract]
Accumulated benefit obligation	$ 161.4	$ 161.7
Change in benefit obligation
Benefit obligation, beginning of year	178.9	144.5
Service cost	9.9	8.7	$ 10.0
Interest cost	$ 8.7	$ 8.4	$ 7.9
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other liabilities	Other liabilities	Other liabilities
Benefits paid	$ (14.6)	$ (9.1)
Actuarial (gain) loss	(4.7)	26.4
Benefit obligation, end of year	178.2	178.9	$ 144.5
Change in plan assets
Fair value of plan assets, beginning of year	163.7	137.6
Actual return on plan assets	16.3	34.8
Employer contributions	0.0	0.4
Benefits paid	(14.6)	(9.1)
Fair value of plan assets, end of year	165.4	163.7	$ 137.6
Funded status at end of year	$ (12.8)	$ (15.2)