v3.22.4
Cover - shares
 9 Months Ended
Dec. 31, 2022
Jan. 26, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Dec. 31, 2022  
Document Transition Report false  
Entity File Number 000-26251  
Entity Registrant Name NETSCOUT SYSTEMS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 04-2837575  
Entity Address, Address Line One 310 Littleton Road  
Entity Address, City or Town Westford  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 01886  
City Area Code 978  
Local Phone Number 614-4000  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol NTCT  
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)   70,962,252
Entity Central Index Key 0001078075  
Current Fiscal Year End Date --03-31  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q3  
Amendment Flag false