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Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) |  | 12 Months Ended
--- | --- | ---
Jul. 17, 2017 USD ($) | Jun. 27, 2021 USD ($) board_member segment | Jun. 28, 2020 USD ($) | Jun. 30, 2019 USD ($)
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Prior period reclassification adjustment |  | $ 0 |  |
Number of reportable segments | segment |  | 1 |  |
Other-than-temporary impairment losses on investments |  |  | $ 0 | $ 0
Advertising costs |  | $ 5,100,000 | 3,800,000 | 3,700,000
Cash paid for interest |  | 14,100,000 | 5,900,000 | 4,000,000.0
Cash paid for income taxes, net of refunds received |  | $ 11,000,000.0 | $ 3,600,000 | $ 500,000
Cree Venture LED |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Payments to acquire interest in joint venture | $ 5,100,000 |  |  |
Ownership interest by parent (as a percent) | 51.00% |  |  |
Number of directors | board_member |  | 5 |  |
Number of directors appointed by company | board_member |  | 3 |  |
San'an Optoelectronics Co., Ltd. | Cree Venture LED |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Proceeds from noncontrolling interests | $ 4,900,000 |  |  |
Ownership interest by noncontrolling owners (as a percent) | 49.00% |  |  |
Number of directors appointed by company | board_member |  | 2 |  |
Minimum |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Useful life of finite-lived intangible assets |  | 4 years |  |
Number of renewal options | segment |  | 1 |  |
Renewal term of leases (in years) |  | 1 year |  |
Maximum |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Useful life of finite-lived intangible assets |  | 15 years |  |
Renewal term of leases (in years) |  | 5 years |  |
Patents | Maximum |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |
Useful life of finite-lived intangible assets |  | 20 years |  |

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