Balance Sheet Components - Revenue Returns Reserves (Details) - Revenue Return Reserve - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balances	$ 81,851	$ 75,044	$ 101,326	$ 104,001
Increases	37,422	41,945	103,127	119,070
Returns taken	(25,976)	(42,845)	(111,156)	(148,927)
Ending balances	$ 93,297	$ 74,144	$ 93,297	$ 74,144