Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) covenant	Mar. 28, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Jun. 07, 2021 USD ($)
Business Acquisition [Line Items]
Inventory serving as collateral for short term borrowing	$ 6,100			$ 6,100
Product warranty accrual, noncurrent	$ 700			600
Cost method investments					$ 7,500
Variable interest entity, primary beneficiary, maximum loss exposure, amount				39,100
Number of covenants breached | covenant	2
Cash and cash equivalents	$ 18,880			21,929
Accounts payable and accrued liabilities	75,600
Other current liabilities	15,174			10,721
Current portion of operating lease liabilities	3,984			4,082
Debt, long-term and short-term, combined amount	9,900
Net loss attributable to Ideanomics, Inc. common shareholders	(84,317)		$ (28,512)
Accumulated deficit	(951,099)			(866,450)
Proceeds from sale of preferred shares, issuance of a convertible note and sale of financial assets	20,300
Proceeds from investments		$ 50,000
Other Commitment, Aggregate Committed Investment
Business Acquisition [Line Items]
Investments	7,000
CHINA
Business Acquisition [Line Items]
Cash and cash equivalents	$ 15,000			$ 15,500