CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 30, 2020	Dec. 25, 2019	Dec. 26, 2018	Dec. 27, 2017
Current assets:
Cash and cash equivalents	$ 146,873	$ 37,099	$ 24,750	$ 21,507
Marketable securities	36,887	36,508
Accounts receivable, net	9,464	9,970
Inventories	2,888	2,221
Prepaid expenses and other current assets	7,074	1,877
Total current assets	203,186	87,675
Property and equipment, net	336,541	314,862
Operating lease assets	306,317	274,426
Other assets	12,297	11,488
TOTAL ASSETS	1,145,348	968,268
Current liabilities:
Accounts payable	23,487	14,300
Accrued expenses	25,920	24,140
Accrued wages and related liabilities	10,441	11,451
Operating lease liabilities, current	35,657	30,002
Other current liabilities	14,200	19,499
Total current liabilities	109,705	99,392
Long-term operating lease liabilities	343,736	304,914
Liabilities under tax receivable agreement, net of current portion	232,954	226,649
Other long-term liabilities	24,460	15,328
Total liabilities	710,855	646,283
Commitments and contingencies
Stockholders' equity:
Preferred stock, no par value—10,000,000 shares authorized; none issued and outstanding as of December 30, 2020 and December 25, 2019, respectively.	0	0
Additional paid-in capital	395,067	244,410
Retained earnings	12,209	54,367
Accumulated other comprehensive income	3	2
Total stockholders' equity attributable to Shake Shack Inc.	407,321	298,817
Non-controlling interests	27,172	23,168
Total equity	434,493	321,985	$ 273,455	$ 224,479
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,145,348	968,268
Deferred Income Tax Assets, Net	287,007	279,817
Class A common stock, $0.001 par value—200,000,000 shares authorized; 38,717,790 and 34,417,302 shares issued and outstanding as of December 30, 2020 and December 25, 2019, respectively.
Stockholders' equity:
Common stock	39	35
Class B common stock, $0.001 par value—35,000,000 shares authorized; 2,951,188 and 3,145,197 shares issued and outstanding as of December 30, 2020 and December 25, 2019, respectively.
Stockholders' equity:
Common stock	$ 3	$ 3

Tax Receivable Agreement Liability, Noncurrent

No definition available.

Name:	shak_TaxReceivableAgreementLiabilityNoncurrent
Namespace Prefix:	shak_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).