Deposits and Other Current Assets - Deposits and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deposits
Deposits for research and development, prototype and production parts, and other	$ 29,318	$ 28,609
Deposits for goods and services yet to be received (“Future Work”)	1,776	2,773
Deposits	31,094	31,382
Other current assets
Prepaid expenses	4,832	13,309
Other current assets	1,295	8,412
Other current assets	$ 6,127	$ 21,721