Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 15, 2024	Jun. 30, 2023
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2023
Entity File Number	001-33190
Entity Registrant Name	MCEWEN MINING INC.
Entity Incorporation, State or Country Code	CO
Entity Tax Identification Number	84-0796160
Entity Address, Address Line One	150 King Street West
Entity Address, Address Line Two	Suite 2800
Entity Address, City or Town	Toronto
Entity Address, State or Province	ON
Entity Address, Country	CA
Entity Address, Postal Zip Code	M5H 1J9
City Area Code	866
Local Phone Number	441-0690
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	MUX
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Document Financial Statement Error Correction [Flag]	false
Entity Filer Category	Accelerated Filer
ICFR Auditor Attestation Flag	true
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 341,313,881
Entity Common Stock, Shares Outstanding		49,440,096
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000314203
Amendment Flag	false
Auditor Firm ID	1263
Auditor Name	Ernst & Young LLP
Auditor Location	Toronto, Canada