Other Accrued Liabilities and Other Non-current Liabilities - Summary of Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	Jun. 18, 2019	Jan. 02, 2019	Jan. 01, 2019
Other Liabilities Disclosure [Abstract]
Employee compensation and related items	$ 10,746		$ 12,888
Accrued sales tax	5,412		5,664
Accrued insurance	5,654		3,952
Accrued property and equipment purchases	4,177		3,196
Accrued advertising	1,651		1,420
Accrued real property tax	2,079		1,578
Other	5,375		6,087
Other accrued liabilities	$ 35,094	$ 34,360	$ 34,785