Balance Sheet Components (Schedule of Changes in Carrying Value of Long-term Investments) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Beginning Balance	[1]	$ 6,053	$ 6,303
Impairment			(250)
Ending Balance		$ 6,053	$ 6,053	[1]

[1] The balances excluded the investment in limited partnership fund of $2.3 million, $1.7 million and $0.9 million, as of December 31, 2023, 2022 and 2021, respectively. Additionally, each of the balances as of December 31, 2022 and 2021 excluded an investment in convertible debt securities of $0.2 million.