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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Jan. 31, 2020
Accounting Policies [Abstract]  
Property, Plant and Equipment Useful Lives Property and equipment, including costs incurred to bring to the location and condition necessary for intended use, are recorded at cost and depreciated over their estimated useful lives using the straight-line method and the following estimated useful lives:
Estimated Useful Life
Computer and network equipment2-3 years
Software, including capitalized software development costs3 years
Furniture and office equipment3-4 years
Leasehold improvementsLesser of lease term and 10 years
Summary Of Finite-Lived Intangible Assets Estimated Useful Lives The estimated useful lives of intangible assets, estimated based on our expected period of benefit, are as follows:
Estimated Useful Life
Customer contracts & related relationships5-9 years
Certifications5 years
Maintenance contracts & related relationships5 years
Existing technology3 years
Backlog—subscription2 years
Tradenames/trademarks1-2 years