Balance Sheet Components (Schedule of Changes in Carrying Value of Long-term Equity Investments) (Parentheticals) (Details) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022	Apr. 03, 2022	Dec. 31, 2021
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 7,860	$ 7,879
Limited partnership funds
Balance Sheet Related Disclosures [Line Items]
Equity investments	1,600	1,700	$ 1,200	$ 900
Convertible debt securities
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 200	$ 200	$ 300	$ 300