Income Taxes - Tax Loss and Credit Carryforwards Available to Offset Future Income Tax Liabilities (Detail) $ in Thousands	Oct. 31, 2022 USD ($)
Federal
Net Operating Loss and Tax Credit Carryforward [Line Items]
Net operating loss carryforward	$ 142,645
Credit carryforward	140,331
Federal foreign tax credit carryforward
Net Operating Loss and Tax Credit Carryforward [Line Items]
Credit carryforward	16,813
International foreign tax credit carryforward
Net Operating Loss and Tax Credit Carryforward [Line Items]
Net operating loss carryforward	37,086
Credit carryforward	12,025
California research credit carryforward
Net Operating Loss and Tax Credit Carryforward [Line Items]
Credit carryforward	226,519
Other state research credit carryforward
Net Operating Loss and Tax Credit Carryforward [Line Items]
Credit carryforward	20,743
State net operating loss carryforward
Net Operating Loss and Tax Credit Carryforward [Line Items]
Net operating loss carryforward	$ 198,348