Summary of Significant Accounting Policies - Other Intangibles, Net-Definite Lived (Detail)	12 Months Ended
	Dec. 27, 2017
Minimum | Favorable Leasehold Interest
Finite-Lived Intangible Assets [Line Items]
Finite live intangible asset, useful life	1 year
Minimum | Unfavorable Leasehold Interest Liability
Finite-Lived Intangible Assets [Line Items]
Finite live intangible asset, useful life	1 year
Maximum | Favorable Leasehold Interest
Finite-Lived Intangible Assets [Line Items]
Finite live intangible asset, useful life	18 years
Maximum | Unfavorable Leasehold Interest Liability
Finite-Lived Intangible Assets [Line Items]
Finite live intangible asset, useful life	20 years