Balance Sheet Components (Schedule of Changes in Carrying Value of Long-term Equity Investments) (Parentheticals) (Details) - USD ($) $ in Thousands	Oct. 02, 2022	Dec. 31, 2021	Oct. 03, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 7,749	$ 7,575
Limited partnership funds
Balance Sheet Related Disclosures [Line Items]
Equity investments	1,500	900	$ 800	$ 600
Convertible debt securities
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 200	$ 300	$ 300