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v3.20.2

Financial Statement Details - Non-cash Activities (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Sep. 27, 2020 | Sep. 29, 2019
Non-cash operating activities |  |
Lease asset and liability additions | $ 0.0 | $ 12.2
Lease asset and liability modifications, net | 1.8 | 0.5
Non-cash investing and financing activities |  |
Transfer of finance lease liability to accounts payable and accrued expenses | $ 4.2 | $ 0.0

X
- Definition Increase (Decrease) in Lease Asset (Liability) + References No definition available. + Details
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Namespace Prefix: | cree_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Modifications of Lease Assets and Lease Liabilities, Net + References No definition available. + Details
Name: | cree_ModificationsOfLeaseAssetsAndLeaseLiabilitiesNet
Namespace Prefix: | cree_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Transfer of Finance Lease Liability to Accounts Payable and Accrued Expenses + References No definition available. + Details
Name: | cree_TransferOfFinanceLeaseLiabilityToAccountsPayableAndAccruedExpenses
Namespace Prefix: | cree_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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