v3.26.1
Document and Entity Information - shares
 3 Months Ended
Apr. 30, 2026
May 26, 2026
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Document Quarterly Report true  
Document Transition Report false  
Entity Registrant Name Netskope, Inc.  
Entity Central Index Key 0002063196  
Current Fiscal Year End Date --01-31  
Securities Act File Number 001-42848  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-1141117  
Entity Address, Address Line One 2445 Augustine Drive  
Entity Address, Address Line Two Suite 301  
Entity Address, City or Town Santa Clara  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 95054  
City Area Code 800  
Local Phone Number 979-6988  
Trading Symbol NTSK  
Title of 12(b) Security Class A Common Stock, $0.0001 par value  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   251,821,667
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   152,101,982
Class C Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0