REVENUE - Schedule of Respective Liability Balances (Details) - USD ($) $ in Thousands |
Jul. 01, 2026 |
Dec. 31, 2025 |
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| Disaggregation of Revenue [Line Items] | ||
| Gift card liability | $ 2,704 | $ 3,711 |
| Deferred revenue, current | 1,972 | 1,928 |
| Deferred revenue, long-term | 18,677 | 19,154 |
| Shack sales | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract with customer, asset, net | 14,397 | 13,397 |
| Licensing receivables, net of allowance for doubtful accounts | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract with customer, asset, net | $ 6,408 | $ 7,507 |
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- Definition Contract With Customer, Gift Card Liability, Current No definition available.
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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