Accrued expenses and other current liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accrued Expenses and Other Current Liabilities Abstract
Accrued cost of revenue	$ 13,198	$ 43,185
Accrued compensation	4,688	981
Other accrued expenses	6,010	3,694
Total accrued expenses	23,896	47,860
Warranty reserves	8,004	4,032	$ 3,985
Current portion of operating lease liability	$ 417	$ 452
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total other current liabilities	Total other current liabilities
Non-federal tax obligations	$ 463	$ 172
Total other current liabilities	$ 8,884	$ 4,656