Commitments and Contingencies (Change in Product Warranty Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2016	Jan. 01, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 3,316	$ 660
Provision for warranty reserve	3,238	1,274
Liabilities assumed from acquisition	0	2,521
Warranty claims paid	(2,643)	(1,139)
Ending balance	$ 3,911	$ 3,316