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RELATED PARTY TRANSACTIONS - Tax Receivable Agreement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2023	Dec. 28, 2022	Dec. 29, 2021
Related Party Transactions [Abstract]
Percentage of tax benefits due to equity owners	85.00%
Payments to related parties	$ 0	$ 0	$ 0
Establishment of liabilities under tax receivable agreement	$ 235,613	$ 234,893

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- Definition

Tax Receivable Agreement Liability, Current and Noncurrent

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No definition available.

+ Details

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- Definition

Tax receivable agreement payments to related parties.

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No definition available.

+ Details

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Namespace Prefix:	shak_
Data Type:	xbrli:monetaryItemType
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- Definition

Tax Receivable Agreement, Percentage of Tax Benefits Due to Equity Owners

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No definition available.

+ Details

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Namespace Prefix:	shak_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

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No definition available.

+ Details

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