Summary of Significant Accounting Policies and Basis of Presentation - Useful Lives of Depreciable Assets (Detail)	Oct. 31, 2023
Computer and other equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful lives of depreciable assets, (in years)	3 years
Computer and other equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful lives of depreciable assets, (in years)	8 years
Buildings
Property, Plant and Equipment [Line Items]
Useful lives of depreciable assets, (in years)	30 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful lives of depreciable assets, (in years)	5 years