Loss Per Common Share - Summary of Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (260,692)	$ (256,009)	$ (101,264)
Preferred stock dividends	(56)	0	0
Net loss attributable to Ideanomics, Inc. common stockholders	$ (260,748)	$ (256,009)	$ (101,264)
Basic
Basic weighted average common shares outstanding (in shares)	512,702,986	447,829,204	213,490,535
Diluted
Diluted weighted average common shares outstanding (in shares)	512,702,986	447,829,204	213,490,535
Net loss per share:
Basic (in dollars per share)	$ (0.51)	$ (0.57)	$ (0.47)
Diluted (in dollars per share)	$ (0.51)	$ (0.57)	$ (0.47)