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Non-Controlling Interests - Schedule of non-controlling interest (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2015
Jun. 25, 2014
Jul. 01, 2015
Jun. 25, 2014
Noncontrolling Interest [Abstract]        
Net income (loss) attributable to Shake Shack Inc. $ 1,118 $ 1,949 $ (11,550) $ 3,041
Decrease in retained earnings as a result of the Organizational Transactions 0   (1,278)  
Change from net income (loss) attributable to Shake Shack Inc. and transfers to non-controlling interest $ 1,118   $ (12,828)