Financial Statements Details - Other Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance Sheet Components [Abstract]
Interest income	$ 7,215	$ 27,139	$ 51,144
Gain on sale of marketable securities	0	9,432	0
Gain on investments in privately-held companies	0	4,164	5,427
Other income (expense)	(1,075)	(1,556)	(75)
Total other income, net	$ 6,140	$ 39,179	$ 56,496