Property and Equipment - Schedule of Costs and Related Accumulated Depreciation and Amortization of Major Classes of Property (Detail) - USD ($) $ in Thousands	Sep. 27, 2017	Dec. 28, 2016
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 221,247	$ 214,852
Less: accumulated depreciation and amortization	(106,344)	(96,382)
Property and equipment, net	114,903	118,470
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	12,323	12,323
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	132,297	125,159
Other property and equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	68,157	65,831
Construction in progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 8,470	$ 11,539