CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands		Total	Warrants	Grapevine Logic, Inc. ("Grapevine")	At-The-Market Offering	Ideanomics Shareholders' equity	Ideanomics Shareholders' equity Warrants	Ideanomics Shareholders' equity Grapevine Logic, Inc. ("Grapevine")	Ideanomics Shareholders' equity At-The-Market Offering	Common Stock	Common Stock Warrants	Common Stock At-The-Market Offering	Common Stock Private placement	Additional Paid-in Capital	Additional Paid-in Capital Warrants	Additional Paid-in Capital At-The-Market Offering	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non-controlling Interest		Non-controlling Interest Grapevine Logic, Inc. ("Grapevine")	[1]
Beginning balance (in shares) at Dec. 31, 2018										102,766,006
Beginning balance at Dec. 31, 2018		$ 43,212				$ 44,243				$ 103				$ 195,780			$ (149,975)	$ (1,665)	$ (1,031)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		9,113				9,113								9,113
Common stock issued under employee stock incentive plan (in shares)										129,840
Common stock issuance for convertible notes (in shares)										8,186,890
Common stock issuance for convertible notes		23,005				23,005				$ 8				22,997
Disposal of subsidiary		2,406				1,960								1,374				586	446	[1]
Non-controlling shareholder contribution (in shares)										575,431
Non-controlling shareholder contribution		$ 321								$ 1				(1)					321	[1]
Common stock issuance for acquisitions, investments, and assets (in shares)		7,400,000								37,966,908
Common stock issuance for acquisitions, investments, and assets		$ 77,819		$ 407		53,221		$ 415		$ 38				53,183					24,598	[1]	$ (8)
Common stock issued to settle debt (in shares)										67,878
Common stock issued to settle debt		110				110								110
Net loss	[2]	(97,656)				(98,508)											(98,508)		852	[1]
Foreign currency translation adjustments, net of nil tax		407																415
Ending balance (in shares) at Dec. 31, 2019										149,692,953
Ending balance at Dec. 31, 2019		58,737				33,559				$ 150				282,556			(248,483)	(664)	25,178	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		11,972				11,972								11,972
Common stock issuance for professional fees (in shares)										1,804,033
Common stock issuance for professional fees		1,642				1,642				$ 2				1,640
Common stock issued under employee stock incentive plan (in shares)										2,634,666
Common stock issued under employee stock incentive plan		1,726				1,726				$ 3				1,723
Common stock issuance for convertible notes (in shares)										40,662,420	8,995,906
Common stock issuance for convertible notes		45,666	$ 7,215			45,666	$ 7,215			$ 40	$ 9			45,626	$ 7,206
Non-controlling shareholder contribution		100																	100	[1]
Common stock issuance for acquisitions, investments, and assets (in shares)										13,056,055
Common stock issuance for acquisitions, investments, and assets		8,192				8,192				$ 13				8,179
Common stock issuance (in shares)										123,437,386
Common stock issuance		182,498				182,778				$ 123				182,655					(280)	[1]
Measurement period adjustment		(11,584)																	(11,584)	[1]
Common stock issued to settle debt (in shares)										4,577,876
Common stock issued to settle debt		2,314				2,314				$ 5				2,309
Extinguishment of convertible note		(12,000)				(12,000)								(12,000)
Net loss	[2]	(112,202)				(101,264)											(101,264)		(10,938)	[1]
Foreign currency translation adjustments, net of nil tax		3,158				1,895												1,895	1,263	[1]
Ending balance (in shares) at Dec. 31, 2020										344,861,295
Ending balance at Dec. 31, 2020		187,434				183,695				$ 345				531,866			(349,747)	1,231	3,739	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		21,982				21,982								21,982
Contingent shares		1,520				1,520								1,520
Common stock issuance for professional fees (in shares)										962,689
Common stock issuance for professional fees		2,318				2,318								2,318
Common stock issued under employee stock incentive plan (in shares)										10,559,084
Common stock issued under employee stock incentive plan		8,290				8,290				$ 11				8,279
Common stock issuance for convertible notes (in shares)										55,278,885
Common stock issuance for convertible notes		157,766				157,766				$ 55				157,711
Non-controlling shareholder contribution		157																	157
Common stock issuance for acquisitions, investments, and assets (in shares)										18,926,413
Common stock issuance for acquisitions, investments, and assets		59,808				59,808				$ 19				59,789
Common stock issuance (in shares)												68,293,722	10,000,000
Common stock issuance					$ 188,546				$ 188,546			$ 69	$ 27,300			$ 188,477
Tax withholding paid for net share settlement of equity awards (in shares)										(1,609,563)
Tax withholding paid for net share settlement of equity awards		(3,878)				(3,878)				$ (2)				(3,876)
Net loss		(257,190)				(256,011)											(256,011)		(1,179)	[1]
Foreign currency translation adjustments, net of nil tax		(1,385)				(1,009)												(1,009)	(376)	[1]
Ending balance (in shares) at Dec. 31, 2021										497,272,525
Ending balance at Dec. 31, 2021		$ 365,368				$ 363,027				$ 497				$ 968,066			$ (605,758)	$ 222	$ 2,341

[1] Excludes accretion of dividend for redeemable non-controlling interest

[2] Excludes deemed dividend related to warrant repricing