Summary of Significant Accounting Policies - Property, plant and equipment useful life (Details)	Jan. 31, 2026
Computer and network equipment
Property, Plant and Equipment [Line Items]
Useful life	3 years
Software, including capitalized software development costs | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Software, including capitalized software development costs | Maximum
Property, Plant and Equipment [Line Items]
Useful life	5 years
Furniture and office equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture and office equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	4 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful life	10 years