NATURE OF OPERATIONS	9 Months Ended
Sep. 23, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NATURE OF OPERATIONS	NATURE OF OPERATIONSShake Shack Inc. ("we," "us," "our," "Shake Shack" and the "Company") was formed on September 23, 2014 as a Delaware corporation for the purpose of facilitating an initial public offering and other related transactions in order to carry on the business of SSE Holdings, LLC and its subsidiaries ("SSE Holdings"). We are the sole managing member of SSE Holdings and, as sole managing member, we operate and control all of the business and affairs of SSE Holdings. As a result, we consolidate the financial results of SSE Holdings and report a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. As of September 23, 2020 we owned 92.5% of SSE Holdings. Unless the context otherwise requires, "we," "us," "our," "Shake Shack," the "Company" and other similar references, refer to Shake Shack Inc. and, unless otherwise stated, all of its subsidiaries, including SSE Holdings.We operate and license Shake Shack restaurants ("Shacks"), which serve hamburgers, hot dogs, chicken, crinkle-cut fries, shakes, frozen custard, beer, wine and more. As of September 23, 2020, there were 298 Shacks in operation, system-wide, of which 175 were domestic Company-operated Shacks, 22 were domestic licensed Shacks and 101 were international licensed Shacks. As of September 23, 2020, 8 domestic Company-operated Shacks and 18 licensed Shacks were temporarily closed primarily due to COVID-19.

NATURE OF OPERATIONS

9 Months Ended

Sep. 23, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NATURE OF OPERATIONSShake Shack Inc. ("we," "us," "our," "Shake Shack" and the "Company") was formed on September 23, 2014 as a Delaware corporation for the purpose of facilitating an initial public offering and other related transactions in order to carry on the business of SSE Holdings, LLC and its subsidiaries ("SSE Holdings"). We are the sole managing member of SSE Holdings and, as sole managing member, we operate and control all of the business and affairs of SSE Holdings. As a result, we consolidate the financial results of SSE Holdings and report a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. As of September 23, 2020 we owned 92.5% of SSE Holdings. Unless the context otherwise requires, "we," "us," "our," "Shake Shack," the "Company" and other similar references, refer to Shake Shack Inc. and, unless otherwise stated, all of its subsidiaries, including SSE Holdings.We operate and license Shake Shack restaurants ("Shacks"), which serve hamburgers, hot dogs, chicken, crinkle-cut fries, shakes, frozen custard, beer, wine and more. As of September 23, 2020, there were 298 Shacks in operation, system-wide, of which 175 were domestic Company-operated Shacks, 22 were domestic licensed Shacks and 101 were international licensed Shacks. As of September 23, 2020, 8 domestic Company-operated Shacks and 18 licensed Shacks were temporarily closed primarily due to COVID-19.