Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 27, 2018	Dec. 26, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 223,947	$ 206,357
Less: Accumulated depreciation and amortization	(71,900)	(66,401)
Property and equipment, net	152,047	139,956
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	104,331	96,318
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	59,277	53,563
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	26,145	24,702
Buildings under deemed landlord financing [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,534	13,966
Smallwares [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,061	1,899
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,378	2,209
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 12,221	$ 13,700