Other Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Other Income (Expense), Net
Interest income	$ 2,667	$ 1,827	$ 1,706
Gains on sale of marketable debt and equity securities, net	21	722	1,364
Gains on sale of non-marketable equity investments	2,348	2,524	1,098
Gains (losses) on securities in NQDC trust	(369)	3,415	3,293
Gains on foreign exchange	5,606	1,742	285
Write-down of non-marketable investments	0	(1,956)	(464)
Other income, net	204	205	288
Total other income, net	$ 10,477	$ 8,479	$ 7,570