Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 11, 2019
Document And Entity Information
Entity Registrant Name	IDEANOMICS, INC.
Entity Central Index Key	0000837852
Trading Symbol	idex
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		133,871,256
Document Type	10-Q/A
Document Period End Date	Sep. 30, 2019
Amendment Flag	true
Amendment Description	The following Form 10-Q/A for the quarter ended September 30, 2019 is being filed to conform to the disclosure contained in the Form S-1/A filed with the Securities and Exchange Commission on February 13, 2020; specifically, to adjust the number of contingently issuable shares disclosed in Note 16 to the financial statements contained herein and to adjust the disclosure related to GTDollar Coins ("GTB") as it related to GTB being denominated in Bitcoin and Ethereum.
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Shell Company	false