CONDENSED CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 25, 2020	Mar. 27, 2019
TOTAL REVENUE	$ 143,170	$ 132,609
Shack-level operating expenses:
Food and paper costs	39,564	37,991
Labor and related expenses	41,766	37,093
Other operating expenses	17,779	15,568
Occupancy and related expenses	12,558	10,899
General and administrative expenses	16,191	13,937
Depreciation expense	11,768	8,966
Pre-opening costs	2,243	2,642
Impairment and loss on disposal of assets	2,088	351
TOTAL EXPENSES	143,957	127,447
OPERATING INCOME (LOSS)	(787)	5,162
Other income (loss), net	(93)	564
Interest expense	(112)	(72)
INCOME (LOSS) BEFORE INCOME TAXES	(992)	5,654
Income tax expense	87	2,047
NET INCOME (LOSS)	(1,079)	3,607
Less: net income (loss) attributable to non-controlling interests	(119)	1,061
NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.	$ (960)	$ 2,546
Earnings (loss) per share of Class A common stock:
Basic (in dollars per share)	$ (0.03)	$ 0.09
Diluted (in dollars per share)	$ (0.03)	$ 0.08
Weighted-average shares of Class A common stock outstanding:
Basic (in shares)	34,444	29,563
Diluted (in shares)	34,444	30,392
Shack sales
TOTAL REVENUE	$ 138,048	$ 128,569
Licensing revenue
TOTAL REVENUE	$ 5,122	$ 4,040