Restaurant Impairments, Closure Costs and Asset Disposals (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2018	Jan. 03, 2017
Restructuring Reserve [Roll Forward]
Closed restaurant reserves, beginning of period	$ 1,880	$ 4,746
Additions—restaurant closing costs recognized and accretion	18,341	858
Decreases—payments	(12,042)	(3,724)
Closed restaurant reserves, end of period	$ 8,179	$ 1,880