Net Loss Per Common Share - Summary of Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net loss from continuing operations	$ (32,741)	$ (35,276)	$ (101,646)	$ (58,308)
Net loss from discontinued operations	(2,756)	(2,491)	(18,168)	(7,970)
Net loss attributable to Ideanomics, Inc. common shareholders	$ (35,497)	$ (37,767)	$ (119,814)	$ (66,278)
Basic weighted average common shares outstanding (in shares)	10,271,290	3,982,340	8,071,870	3,980,619
Diluted weighted average common shares outstanding (in shares)	10,271,290	3,982,340	8,071,870	3,980,619
Net loss per share:
Basic, loss per share from continuing operations (in dollars per share)	$ (3.19)	$ (8.86)	$ (12.59)	$ (14.65)
Diluted, loss per share from continuing operations (in dollars per share)	(3.19)	(8.86)	(12.59)	(14.65)
Basic, loss per share from discontinued operations (in dollars per share)	(0.27)	(0.63)	(2.25)	(2.00)
Diluted, loss per share from discontinued operations (in dollars per share)	(0.27)	(0.63)	(2.25)	(2.00)
Basic loss per share of Common Stock (in dollars per share)	(3.46)	(9.49)	(14.84)	(16.65)
Diluted loss per share of Common Stock (in dollars per share)	$ (3.46)	$ (9.49)	$ (14.84)	$ (16.65)