Earnings (Loss) Per Common Share - Summary of Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss attributable to Ideanomics, Inc. common shareholders	$ (37,414)	$ (51,811)	$ (103,692)	$ (64,986)
Basic (in shares)	494,061,205	473,829,962	496,392,410	432,989,602
Effect of dilutive securities
Convertible preferred shares- Series A (in shares)	0	0	0	0
Convertible promissory notes (in shares)	0	0	0	0
Diluted potential common shares (in shares)	494,061,205	473,829,962	496,392,410	432,989,602
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.08)	$ (0.11)	$ (0.21)	$ (0.15)
Diluted (in dollars per share)	$ (0.08)	$ (0.11)	$ (0.21)	$ (0.15)