Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue	$ 114,080	$ 26,759	$ 44,566
Recognized revenue	600	500	300
Products and services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	110,079	26,729	3,866
Products and services provided over time
Disaggregation of Revenue [Line Items]
Total revenue	4,001	30	40,700
Digital asset management services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	40,700
Digital advertising services and other
Disaggregation of Revenue [Line Items]
Total revenue	231	1,631	1,173
Title and escrow services
Disaggregation of Revenue [Line Items]
Total revenue	72,686	0	0
Electric vehicle products
Disaggregation of Revenue [Line Items]
Total revenue	31,123	19,462	0
Electric vehicle services
Disaggregation of Revenue [Line Items]
Total revenue	204	0	2,693
Combustion engine vehicles
Disaggregation of Revenue [Line Items]
Total revenue	0	5,160	0
Charging, battery and powertrain products
Disaggregation of Revenue [Line Items]
Total revenue	5,886	506	0
Charging, battery and powertrain services
Disaggregation of Revenue [Line Items]
Total revenue	2,645	0	0
Other revenue
Disaggregation of Revenue [Line Items]
Total revenue	1,305	0	0
Malaysia
Disaggregation of Revenue [Line Items]
Total revenue	65	83	0
USA
Disaggregation of Revenue [Line Items]
Total revenue	84,303	1,631	41,873
PRC
Disaggregation of Revenue [Line Items]
Total revenue	$ 29,712	$ 25,045	$ 2,693