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Fair Value - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 26, 2020 | Jun. 30, 2020 | Jun. 27, 2020
--- | --- | --- | --- | ---
Fair Value Disclosures [Abstract] |  |  |  |
Convertible notes, net | $ 496.1 | $ 496.1 | $ 486.6 | $ 486.6
Convertible notes |  | $ 676.1 |  | $ 542.5

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- Definition Convertible notes payable, net. + References No definition available. + Details
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Period Type: | instant

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- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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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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