v2.4.0.8
Document and Entity Information
6 Months Ended
Nov. 01, 2015
Dec. 04, 2015
Document and Entity Information [Abstract]    
Entity Registrant Name FINISAR CORP  
Entity Central Index Key 0001094739  
Current Fiscal Year End Date --05-01  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Nov. 01, 2015  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   106,960,677