| Document and Entity Information | Feb. 11, 2021 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0000895419 |
| Document Type | 8-K |
| Document Period End Date | Feb. 11, 2021 |
| Entity Registrant Name | CREE, INC. |
| Entity Incorporation State Country Code | NC |
| Entity File Number | 0-21154 |
| Entity Tax Identification Number | 56-1572719 |
| Entity Address, Address Line One | 4600 Silicon Drive |
| Entity Address, City or Town | Durham |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 27703 |
| City Area Code | (919) |
| Local Phone Number | 407-5300 |
| Written Communications | false |
| Entity Emerging Growth Company | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.00125 par value |
| Trading Symbol | CREE |
| Security Exchange Name | NASDAQ |
