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Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Jul. 01, 2018
Dec. 31, 2017
Payables And Accruals [Abstract]    
Payroll and related expense $ 21,228 $ 23,670
Occupancy expense 9,698 10,005
Sales tax 6,458 9,674
Other 22,563 24,877
Accrued expenses $ 59,947 $ 68,226