Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Aug. 31, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35561
Entity Registrant Name	IDEANOMICS, INC.
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	20-1778374
Entity Address, Address Line One	1441 Broadway
Entity Address, Address Line Two	Suite 5116
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10018
City Area Code	212
Local Phone Number	206-1216
Title of 12(b) Security	Common stock, $0.001 par value per share
Trading Symbol	IDEX
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		491,849,892
Documents Incorporated by Reference	.
Entity Central Index Key	0000837852
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Public Float			$ 1.2