XML 70 R58.htm IDEA: XBRL DOCUMENT v3.20.2

NON-CONTROLLING INTERESTS - Ownership Interest in SSE Holdings (Details) - shares	Sep. 23, 2020	Dec. 25, 2019
Noncontrolling Interest [Line Items]
Number of LLC Interests held by Shake Shack Inc. (in shares)	38,280,102	34,417,302
Number of LLC Interests held by non-controlling interest holders (in shares)	3,112,002	3,145,197
Total LLC Interests outstanding (in shares)	41,392,104	37,562,499
Total LLC Interests outstanding (as a percentage)	100.00%	100.00%
Shake Shack Inc.
Noncontrolling Interest [Line Items]
Number of LLC Interests held by Shake Shack Inc. (as a percentage)	92.50%	91.60%
Non-Controlling Interest Holders
Noncontrolling Interest [Line Items]
Number of LLC Interests held by non-controlling interest holders (as a percentage)	7.50%	8.40%

X

- Definition

Consolidation, Less than Wholly Owned Subsidiary, Number of Shares

+ References

No definition available.

+ Details

Name:	shak_ConsolidationLessthanWhollyOwnedSubsidiaryNumberofShares
Namespace Prefix:	shak_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Consolidation, Less than Wholly Owned Subsidiary, Number of Shares Held by Noncontrolling Owners

+ References

No definition available.

+ Details

Name:	shak_ConsolidationLessthanWhollyOwnedSubsidiaryNumberofSharesHeldbyNoncontrollingOwners
Namespace Prefix:	shak_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Consolidation, Less than Wholly Owned Subsidiary, Number of Shares Held by Parent

+ References

No definition available.

+ Details

Name:	shak_ConsolidationLessthanWhollyOwnedSubsidiaryNumberofSharesHeldbyParent
Namespace Prefix:	shak_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Noncontrolling Interest, Total Ownership Percentage

+ References

No definition available.

+ Details

Name:	shak_NoncontrollingInterestTotalOwnershipPercentage
Namespace Prefix:	shak_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	srt_OwnershipAxis=shak_ShakeShackInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=shak_NonControllingInterestHoldersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: