Balance Sheet Components (Schedule of Investments Classified as Available-for-Sale in Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Oct. 01, 2023	Dec. 31, 2022
Schedule Of Investment Income Reported Amounts By Category [Line Items]
Estimated Fair Market Value, Less Than 12 Months	$ 88,693	$ 73,800
Gross Unrealized Losses, Less Than 12 Months	(71)	(320)
Estimated Fair Market Value, 12 Months or Longer	0	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Estimated Fair Market Value, Total	88,693	73,800
Gross Unrealized Losses, Total	(71)	(320)
U.S. Treasury Securities
Schedule Of Investment Income Reported Amounts By Category [Line Items]
Estimated Fair Market Value, Less Than 12 Months	88,693	73,800
Gross Unrealized Losses, Less Than 12 Months	(71)	(320)
Estimated Fair Market Value, 12 Months or Longer	0	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Estimated Fair Market Value, Total	88,693	73,800
Gross Unrealized Losses, Total	$ (71)	$ (320)