Reportable Segments - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Segment Reporting Information
Number of reportable segments | segment	2
Total assets	$ 178,298	$ 266,147
Electric Motorcycles
Segment Reporting Information
Total assets	150,109	232,981
STACYC
Segment Reporting Information
Total assets	$ 28,189	$ 33,166