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COMMITMENTS AND CONTINGENCIES (Details) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2015 manager | Dec. 28, 2016 USD ($) | Dec. 31, 2013 USD ($)
Loss Contingencies [Line Items] |  |  |
Litigation Settlement, Expense |  | $ 20,000 |
Percentage of tax benefits due to equity owners |  | 85.00% |
Tax receivable agreement liability |  | $ 272,482,000 |
Letter of credit |  |  |
Loss Contingencies [Line Items] |  |  |
Renewal term |  | 1 year |
Retail site |  |  |
Loss Contingencies [Line Items] |  |  |
Letters of credit outstanding |  | $ 160,000 |
Office building |  |  |
Loss Contingencies [Line Items] |  |  |
Letters of credit outstanding |  |  | $ 80,000
Former Shake Shack Manager Litigation |  |  |
Loss Contingencies [Line Items] |  |  |
Number of former Shake Shack managers | manager | 2 |  |
Settlement agreement amount funded |  | 750,000 |
Liability recognized from settlement |  | $ 770,000 |
IPO |  |  |
Loss Contingencies [Line Items] |  |  |
Percentage of tax benefits due to equity owners |  | 85.00% |

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