Balance Sheet Components (Schedule of Changes in Carrying Value of Long-term Equity Investments) (Parentheticals) (Details) - USD ($) $ in Thousands	Oct. 01, 2023	Dec. 31, 2022	Oct. 02, 2022	Dec. 31, 2021
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 8,240	$ 7,879
Limited partnership funds
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 2,200	1,700	$ 1,500	$ 900
Convertible debt securities
Balance Sheet Related Disclosures [Line Items]
Equity investments		$ 200	$ 200	$ 300