v2.4.0.6
Document and Entity Information (USD $)
12 Months Ended
Jun. 30, 2013
Aug. 22, 2013
Dec. 28, 2012
Document and Entity Information [Abstract]      
Entity Registrant Name CREE INC    
Entity Central Index Key 0000895419    
Current Fiscal Year End Date --06-30    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Jun. 30, 2013    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   120,105,701  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 3,803,847,172