Document and Entity Information - shares
6 Months Ended
Oct. 29, 2016
Nov. 29, 2016
Document and Entity Information    
Entity Registrant Name AeroVironment Inc  
Entity Central Index Key 0001368622  
Document Type 10-Q  
Document Period End Date Oct. 29, 2016  
Amendment Flag false  
Current Fiscal Year End Date --04-30  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   23,388,110
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2