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RELATED PARTY TRANSACTIONS - Tax Receivable Agreement (Details) - USD ($) $ in Thousands	Jun. 26, 2024	Dec. 27, 2023
Related Party Transactions [Abstract]
Liabilities under tax receivable agreement, net of current portion	$ 246,878	$ 235,613

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- Definition

Tax Receivable Agreement Liability, Noncurrent

+ References

No definition available.

+ Details

Name:	shak_TaxReceivableAgreementLiabilityNoncurrent
Namespace Prefix:	shak_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration