Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Oct. 02, 2015	Jul. 03, 2015	Apr. 03, 2015	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense – cost of revenue									$ 4,712	$ 6,143	$ 5,280
Amortization expense – operating expenses	$ 2,018	$ 1,852	$ 1,852	$ 1,889	$ 2,799	$ 2,843	$ 2,876	$ 1,744	7,611	10,262	7,270
Total amortization expense									$ 12,323	$ 16,405	$ 12,550