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NON-CONTROLLING INTERESTS - Ownership Interest in SSE Holdings (Details) - shares | Dec. 28, 2016 | Dec. 30, 2015 | Feb. 04, 2015
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Noncontrolling Interest [Abstract] |  |  |
Number of LLC Interests held by Shake Shack Inc. | 25,151,384 | 19,789,259.000 |
Number of LLC Interests held by Shake Shack Inc. (in percentage) | 69.10% | 54.60% | 33.30%
Number of LLC Interests held by non-controlling interest holders | 11,253,592 | 16,460,741.000 |
Number of LLC Interests held by non-controlling interest holders (in percentage) | 30.90% | 45.40% | 66.70%
Total LLC Interests outstanding | 36,404,976 | 36,250,000 |
Total LLC Interests outstanding (in percentage) | 100.00% | 100.00% |

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- Definition Consolidation, Less than Wholly Owned Subsidiary, Number of Shares + References No definition available. + Details
Name: | shak_ConsolidationLessthanWhollyOwnedSubsidiaryNumberofShares
Namespace Prefix: | shak_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Consolidation, Less than Wholly Owned Subsidiary, Number of Shares Held by Noncontrolling Owners + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Consolidation, Less than Wholly Owned Subsidiary, Number of Shares Held by Parent + References No definition available. + Details
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Period Type: | instant

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- Definition Noncontrolling Interest, Total Ownership Percentage + References No definition available. + Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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- References No definition available. + Details
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