Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Jul. 02, 2017	Jan. 01, 2017
Payables And Accruals [Abstract]
Payroll and related expense	$ 22,441	$ 24,224
Occupancy expense	10,020	10,981
Sales tax	7,042	11,376
Other	22,344	30,306
Accrued expenses	$ 61,847	$ 76,887