v3.26.1
Cover - shares
6 Months Ended
Jun. 30, 2026
Jul. 24, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-36324  
Entity Registrant Name VARONIS SYSTEMS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 57-1222280  
Entity Address, Address Line One 801 Brickell Avenue  
Entity Address, City or Town Miami  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33131  
City Area Code 877  
Local Phone Number 292-8767  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol VRNS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   114,860,485
Entity Central Index Key 0001361113  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false