Financial Statement Components - Other Noncurrent Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Security deposits	$ 1,187	$ 1,106
Non-marketable equity investment	10,002	0
Other non-current assets	1,266	45
Total other non-current assets	$ 12,455	$ 1,151