Financial Statement Components - Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued compensation and benefits	$ 9,899	$ 3,071
Accrued expenses	6,727	3,998
Warranty reserves	1,798	259
Contract liabilities	898	2,284
Accrued interest payable	316	0
Contract losses	115	558
Finance lease liabilities (capital lease liabilities prior to adoption of ASC 842), current	91	282
Total accrued and other current liabilities	$ 19,844	$ 10,452
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total accrued and other current liabilities	Total accrued and other current liabilities