XML 109 R49.htm IDEA: XBRL DOCUMENT v3.22.4

NATURE OF OPERATIONS (Details)	12 Months Ended
	Dec. 31, 2022
Nature of operations
Ownership interests in various mines (as a percent)	100.00%
Minera Andes Inc.
Nature of operations
Subsidiary ownership interest (as a percent)	49.00%
Minera Santa Cruz S.A. | Minera Andes Inc.
Nature of operations
Subsidiary ownership interest (as a percent)	68.10%

X

- Definition

The percentage of ownership of common stock or equity participation in the investees accounted for under the equity method of accounting.

+ References

No definition available.

+ Details

Name:	mux_EquityMethodInvestmentsOwnershipPercentage
Namespace Prefix:	mux_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The Company's ownership interests in various mines.

+ References

No definition available.

+ Details

Name:	mux_OwnershipPercentage
Namespace Prefix:	mux_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_SubsidiaryOfCommonParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquityMethodInvestmentNonconsolidatedInvesteeAxis=mux_MineraSantaCruzSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: