Financial Statement Components - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred rent	$ 0	$ 826
Finance lease liabilities (capital lease liabilities prior to adoption of ASC 842), non-current	0	492
Other non-current liabilities	598	0
Total other non-current liabilities	$ 598	$ 1,318
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total other non-current liabilities	Total other non-current liabilities