Deposits and Other Current Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Deposits And Other Current Assets [Line Items]
Received tooling, machinery and equipment	$ 0	$ 0
Palantir Technologies Inc.
Deposits And Other Current Assets [Line Items]
Amortization expense related to the Palantir hosting arrangement and other prepaid software subscriptions	4,597	$ 745
Vendor Trust | Convertible Debt
Deposits And Other Current Assets [Line Items]
Deposits for tooling and equipment	$ 8,380