v3.3.1.900
Document and Entity Information - shares
9 Months Ended
Mar. 27, 2016
Apr. 20, 2016
Document and Entity Information [Abstract]    
Entity Registrant Name CREE INC  
Entity Central Index Key 0000895419  
Current Fiscal Year End Date --06-26  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 27, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   100,427,836
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes