Income Taxes - Provision for Income Taxes and Effective Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Income Tax Disclosure [Abstract]
Income before income taxes	$ 341,530	$ 296,587	$ 798,984	$ 576,145
Provision (benefit) for income taxes	$ 45,437	$ 23,947	$ 68,346	$ 36,730
Effective tax rate	13.30%	8.10%	8.60%	6.40%