Other Intangible Assets and Liabilities - Schedule of Estimated Net Amortization (Detail) - USD ($) $ in Thousands	Dec. 27, 2017	Dec. 28, 2016
Favorable Leasehold Interest
Favorable Leasehold Interest
December 26, 2018	$ 97
December 25, 2019	94
December 30, 2020	85
December 29, 2021	64
December 28, 2022	37
Thereafter	0
Total favorable leasehold interest, net	377	$ 484
Unfavorable Leasehold Interest
Unfavorable Leasehold Interest
December 26, 2018	(144)
December 25, 2019	(136)
December 30, 2020	(123)
December 29, 2021	(120)
December 28, 2022	(107)
Thereafter	(156)
Unfavorable leasehold interest liability, net	$ (786)	$ (1,012)

Finite Lived Intangible Liabilities Amortization Expenses After Year Five

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- Definition

Finite Lived Intangible Liabilities Amortization Expenses Next Twelve Months

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No definition available.

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- Definition

Finite Lived Intangible Liabilities Amortization Expenses Year Five

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No definition available.

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- Definition

Finite Lived Intangible Liabilities Amortization Expenses Year Four

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No definition available.

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- Definition

Finite Lived Intangible Liabilities Amortization Expenses Year Three

+ References

No definition available.

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- Definition

Finite Lived Intangible Liabilities Amortization Expenses Year Two

+ References

No definition available.

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- Definition

Finite-Lived Intangible Liabilities, Net, Amortization Expense, Fiscal Year Maturity [Abstract]

+ References

No definition available.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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No definition available.

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

This element represents a liability associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.24)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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