Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	$ 36,317	$ 21,821	$ 63,772	$ 43,350
Expenses not allocated to segments, net	(324)	9,286	(3,106)	13,356
Loss before income taxes	(35,993)	(31,107)	(60,666)	(56,705)
eVTOL [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	33,439	19,709	58,082	39,824
UATM [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	1,199	1,150	2,418	1,861
Service and Operations Solutions
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	$ 1,679	$ 962	$ 3,272	$ 1,664