CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 25, 2020	Mar. 27, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,079)	$ 3,607
Other comprehensive income, net of tax(1):
Change in foreign currency translation adjustment	1	0
Net change	1	0
OTHER COMPREHENSIVE INCOME	1	0
COMPREHENSIVE INCOME (LOSS)	(1,078)	3,607
Less: comprehensive income (loss) attributable to non-controlling interest	(119)	1,061
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.	$ (959)	$ 2,546