Income Taxes - Provision for Income Taxes and Effective Tax Rates (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Income Tax Disclosure [Abstract]
Income before income taxes	$ 327,243	$ 177,104
Provision for income taxes	$ 13,902	$ 15,076
Effective tax rate	4.20%	8.50%