Deposits and Other Current Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Palantir
Deposits And Other Current Assets [Line Items]
Amortization expense related to the Palantir hosting arrangement and other prepaid software subscriptions	$ 2,870	$ 0

Amortization Expense Related To Hosting Arrangement And Other Prepaid Software Subscriptions

No definition available.

Name:	ffie_AmortizationExpenseRelatedToHostingArrangementAndOtherPrepaidSoftwareSubscriptions
Namespace Prefix:	ffie_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration