Employee Benefit Plans - (Other Retirement Plans) - Additional Information (Detail)	12 Months Ended
	Oct. 31, 2023 USD ($)	Oct. 31, 2023 CAD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)
Other Retirement Plans [Line Items]
Deferred percentage of annual cash base compensation	50.00%	50.00%
Deferred percentage of variable cash compensation	100.00%	100.00%
Other Retirement Plans, Defined, Contribution Plan
Other Retirement Plans [Line Items]
Employer contribution	$ 59,200,000		$ 51,200,000	$ 49,400,000
Maximum pretax annual company contribution match per employee	$ 3,000	$ 4,000