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NON-CONTROLLING INTERESTS - Schedule of Non-Controlling Interest (Details) - USD ($) $ in Thousands | 3 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 28, 2016 | Sep. 28, 2016 | Jun. 29, 2016 | Mar. 30, 2016 | Dec. 30, 2015 | Sep. 30, 2015 | Jul. 01, 2015 | Apr. 01, 2015 | Dec. 30, 2015 | Dec. 28, 2016 | Dec. 30, 2015 | Dec. 31, 2014
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Shake Shack Inc. | $ 3,920 | $ 3,766 | $ 3,298 | $ 1,462 | $ 1,246 | $ 1,528 | $ 1,118 | $ (12,668) |  | $ 12,446 |  | $ (8,776) |  | $ 2,118 |
Net income (loss) attributable to Shake Shack Inc. |  |  |  |  |  |  |  |  |  | 12,436 |  | (8,781) |  | 2,118 |
Unrealized holding losses on available-for-sale securities |  |  |  |  |  |  |  |  | $ (11) | (16) | [1] | (11) | [1] | 0 | [1]
Total effect of changes in ownership interest on equity attributable to Shake Shack Inc. |  |  |  |  |  |  |  |  |  | 30,247 |  | (57,134) |  | 2,118 |
Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrealized holding losses on available-for-sale securities |  |  |  |  |  |  |  |  | $ (5) | (10) |  | (5) |  | 0 |
Unit appreciation rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers (to) from non-controlling interests |  |  |  |  |  |  |  |  |  | 0 |  | 987 |  | 0 |
Stock options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers (to) from non-controlling interests |  |  |  |  |  |  |  |  |  | 825 |  |  |  |  |
IPO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers (to) from non-controlling interests |  |  |  |  |  |  |  |  |  | 0 |  | (75,182) |  | 0 |
Redemption or Exchange of Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers (to) from non-controlling interests |  |  |  |  |  |  |  |  |  | 16,986 |  | 19,934 |  | 0 |
USC Merger |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers (to) from non-controlling interests |  |  |  |  |  |  |  |  |  | $ 0 |  | $ 5,908 |  | $ 0 |
[1] | Net of tax benefit of $0 for fiscal years ended December 28, 2016, December 30, 2015 and December 31, 2014.

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