Net Loss Per Common Share - Summary of Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net loss attributable to Ideanomics, Inc. common stockholders	$ (84,317)	$ (28,512)
Basic
Basic weighted average common shares outstanding (in shares)	731,001,467	497,359,747
Diluted
Diluted potential common shares (in shares)	731,001,467	497,359,747
Net loss per share:
Basic (in dollars per share)	$ (0.12)	$ (0.06)
Diluted (in dollars per share)	$ (0.12)	$ (0.06)