Balance Sheet Components (Schedule of Changes in Carrying Value of Long-term Equity Investments) (Parentheticals) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Apr. 02, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 8,266	$ 8,367
Limited partnership funds
Balance Sheet Related Disclosures [Line Items]
Equity investments	2,200	2,300	$ 1,600	$ 1,700
Convertible debt securities
Balance Sheet Related Disclosures [Line Items]
Equity investments	$ 200	$ 200	$ 200	$ 200