CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (51,095)	$ (8,723)	$ (65,137)	$ (47,765)
Other comprehensive income (loss), net of nil tax:
Changes in fair value of available-for-sale securities	4	0	(16)	0
Foreign currency translation adjustments	(295)	1,356	(1,196)	1,639
Comprehensive loss	(51,386)	(7,367)	(66,349)	(46,126)
Deemed dividend related to warrant repricing	0	0	0	(184)
Comprehensive loss (gain) attributable to non-controlling interest	350	122	1,113	(51)
Comprehensive loss attributable to Ideanomics, Inc. common shareholders	$ (51,036)	$ (7,245)	$ (65,236)	$ (46,361)