Significant Balance Sheet Components - Schedule of Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Supplemental Balance Sheet Information [Abstract]
Early exercise liability	$ 362	$ 2,002
Payroll tax liabilities	347	1,354
Other liabilities	1,519	2,122
Total other long-term liabilities	$ 2,228	$ 5,478