Other Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Other Income, Net
Interest income	$ 3,817	$ 9,509	$ 8,070
Gains (losses) on marketable equity investments	(148)	713	(551)
Gains (losses) on non-marketable equity investments	(4,806)	(4,802)	3,300
Gains (losses) on securities in NQDC trust	4,881	5,402	(1,471)
Gains (losses) on foreign exchange	4,429	(4,111)	(5,557)
Other expense, net	(228)	(710)	(471)
Total other income, net	$ 7,945	$ 6,001	$ 3,320