XML 83 R72.htm IDEA: XBRL DOCUMENT
v3.20.4

Commitments and Contingencies - Narrative (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2020 endowedFacultyChair | Dec. 27, 2020 USD ($)
Loss Contingencies [Line Items] |  |
GDA term | 13 years |
Duration of annual commitment fee payment of GDA | 6 years |
Number of endowed faculty chairs created | endowedFacultyChair | 2 |
Minimum |  |
Loss Contingencies [Line Items] |  |
Annual cost of GDA |  | $ 1,000,000.0
Maximum |  |
Loss Contingencies [Line Items] |  |
Potential total grant amount of GDA |  | 500,000,000.0
Annual cost of GDA |  | $ 5,200,000

X
- Definition Grant Disbursement Agreement, Annual Commitment Fee Payment Duration + References No definition available. + Details
Name: | cree_GrantDisbursementAgreementAnnualCommitmentFeePaymentDuration
Namespace Prefix: | cree_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Grant Disbursement Agreement, Annual Cost + References No definition available. + Details
Name: | cree_GrantDisbursementAgreementAnnualCost
Namespace Prefix: | cree_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Grant Disbursement Agreement, Number of Endowed Faculty Chairs Created + References No definition available. + Details
Name: | cree_GrantDisbursementAgreementNumberOfEndowedFacultyChairsCreated
Namespace Prefix: | cree_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Grant Disbursement Agreement, Potential Total Grant Amount + References No definition available. + Details
Name: | cree_GrantDisbursementAgreementPotentialTotalGrantAmount
Namespace Prefix: | cree_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Grant Disbursement Agreement, Term + References No definition available. + Details
Name: | cree_GrantDisbursementAgreementTerm
Namespace Prefix: | cree_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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: |