Supplemental Financial Information - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 02, 2018	Jan. 02, 2018
Supplemental Financial Information [Abstract]
Gift card liability	$ 2,520	$ 4,078
Occupancy related	3,993	3,733
Utilities	1,603	1,705
Data breach liabilities	0	7,605
Other accrued expenses	4,176	4,100
Accrued liabilities, current	$ 12,292	$ 21,221