XML 59 R45.htm IDEA: XBRL DOCUMENT
v3.20.2

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 17, 2017 USD ($) | Jun. 28, 2020 USD ($) | Mar. 29, 2020 USD ($) | Dec. 29, 2019 USD ($) | Sep. 29, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 30, 2018 USD ($) | Sep. 23, 2018 USD ($) | Jun. 27, 2021 | Jun. 28, 2020 USD ($) reportable_segments board_member operating_segments | Jun. 30, 2019 USD ($) | Jun. 24, 2018 USD ($) | Jul. 01, 2019 USD ($)
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fiscal period duration |  |  |  |  |  |  |  |  |  |  | 364 days | 371 days | 364 days |
Prior period reclassification adjustment |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |
Number of operating segments | operating_segments |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Number of reportable segments | reportable_segments |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Other-than-temporary impairment losses on investments |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 |
Common stock ownership interest (as a percent) |  | 16.00% |  |  |  |  |  |  |  |  | 16.00% |  |  |
Advertising costs |  |  |  |  |  |  |  |  |  |  | $ 4,100,000 | 4,200,000 | 3,900,000 |
Proceeds from issuing Cree Venture LED stock to noncontrolling interest |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 4,900,000 |
Net income attributable to non-controlling interest |  | $ 600,000 | $ 200,000 | $ 300,000 | $ 0 | $ (100,000) | $ 100,000 | $ 0 | $ 0 |  | 1,100,000 | 0 | 100,000 |
Cash paid for interest |  |  |  |  |  |  |  |  |  |  | 5,900,000 | 4,000,000.0 | 6,100,000 |
Cash paid for income taxes, net of refunds received |  |  |  |  |  |  |  |  |  |  | $ 7,100,000 | $ 5,400,000 | $ 100,000 |
Accounting Standards Update [Extensible List] |  |  |  |  |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201409Member |  |
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201602ModifiedRetrospectiveMember |  |  |
Lease liability |  | 13,900,000 |  |  |  |  |  |  |  |  | $ 13,900,000 |  |  |
Right-of-use assets |  | $ 14,000,000.0 |  |  |  |  |  |  |  |  | $ 14,000,000.0 |  |  |
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 |  |  |
Net income attributable to non-controlling interest |  |  |  |  |  |  |  |  |  |  | $ 1,100,000 | $ 0.0 |  |
San'an Optoelectronics Co., Ltd. | Cree Venture LED |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuing Cree Venture LED stock to noncontrolling interest | $ 4,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest by noncontrolling owners (as a percent) | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Number of directors appointed by company | board_member |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Accounting Standards Update 2016-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201602Member |  |  |
Lease liability |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,200,000
Right-of-use assets |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,300,000
Accounting Standards Update 2018-10 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201810Member |  |  |
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Currency translation gains (losses) reclassified to earnings |  |  |  |  |  |  |  |  |  |  |  | $ (5,200,000) |  |
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 | reportable_segments |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Renewal term of leases |  |  |  |  |  |  |  |  |  |  | 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 |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Patents | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of finite-lived intangible assets |  |  |  |  |  |  |  |  |  |  | 20 years |  |  |
Furniture and fixtures |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Buildings and building improvements | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Buildings and building improvements | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 40 years |  |  |
Machinery and equipment | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Machinery and equipment | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 15 years |  |  |
Vehicles |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Computer hardware/software |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful life of property, plant and equipment |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |
Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis of Presentation and Changes in Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fiscal period duration |  |  |  |  |  |  |  |  |  | 364 days |  |  |  |

X
- Definition Basis of Presentation and Changes in Significant Accounting Policies [Line Items] + References No definition available. + Details
Name: | cree_BasisofPresentationandChangesinSignificantAccountingPoliciesLineItems
Namespace Prefix: | cree_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Joint Venture, Number of Directors + References No definition available. + Details
Name: | cree_JointVentureNumberOfDirectors
Namespace Prefix: | cree_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Joint Venture, Number of Directors Appointed by Parent + References No definition available. + Details
Name: | cree_JointVentureNumberOfDirectorsAppointedByParent
Namespace Prefix: | cree_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Lease, Number of Renewal Options + References No definition available. + Details
Name: | cree_LesseeLeaseNumberOfRenewalOptions
Namespace Prefix: | cree_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Lease, Renewal Term + References No definition available. + Details
Name: | cree_LesseeLeaseRenewalTerm
Namespace Prefix: | cree_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates amendment to accounting standards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(i) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (e)(3) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iv) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 24: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (e)(4) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(ii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(2) Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(3) + Details
Name: | us-gaap_AccountingStandardsUpdateExtensibleList
Namespace Prefix: | us-gaap_
Data Type: | srt-types:extensibleListItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
Name: | us-gaap_AdvertisingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Indicates transition method applied for adoption of amendment to accounting standards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109261464&loc=SL109261606-128450 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 40 -Section 65 -Paragraph 3 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=120431994&loc=SL118172731-207502 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 405 -SubTopic 20 -Section 65 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=77997009&loc=SL77997016-210199 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 40 -Section 65 -Paragraph 3 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120431994&loc=SL118172731-207502 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121329987&loc=SL77916155-209984 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 65 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98513396&loc=SL94080479-196980 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 853 -SubTopic 10 -Section 65 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=109199533&loc=SL109199563-203033 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109261464&loc=SL109261606-128450 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 405 -SubTopic 20 -Section 65 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=77997009&loc=SL77997016-210199 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 105 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=117337699&loc=SL117340306-165695 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 105 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117337699&loc=SL117340306-165695 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 65 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121483254&loc=SL120254523-199619 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121329987&loc=SL120154346-209984 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121329987&loc=SL77916155-209984 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 3 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121329987&loc=SL119206272-209984 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121329987&loc=SL119206272-209984 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 853 -SubTopic 10 -Section 65 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=109199533&loc=SL109199563-203033 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 65 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=98513396&loc=SL94080479-196980 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 10 -Section 65 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120520240&loc=SL117035239-210619 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(3) + Details
Name: | us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateTransitionOptionElectedExtensibleList
Namespace Prefix: | us-gaap_
Data Type: | srt-types:extensibleListItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) in the disposal group, including discontinued operation, recognized in the statement of income as a result of the sale or complete or substantially complete liquidation of an investment in a foreign entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
Name: | us-gaap_FiscalPeriodDuration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586 + Details
Name: | us-gaap_IncomeTaxesPaidNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586 + Details
Name: | us-gaap_InterestPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 + Details
Name: | us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfOperatingSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=121553693&loc=SL6284422-111562 + Details
Name: | us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireInterestInJointVenture
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromMinorityShareholders
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=cree_CreeVentureLEDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=cree_SananOptoelectronicsCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=cree_AccountingStandardsUpdate201810Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis=us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_VehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cree_ComputerHardwareAndSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |