XML 122 R62.htm IDEA: XBRL DOCUMENT v3.22.4

MINERAL PROPERTY INTERESTS AND PLANT AND EQUIPMENT- Mineral Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Mineral Property Interests
Mineral property interests	$ 301,145	$ 297,332
Black Fox Complex
Mineral Property Interests
Mineral property interests	40,413	37,678
Lexam Vg Gold
Mineral Property Interests
Mineral property interests	41,595	41,595
Los Azules Copper Project
Mineral Property Interests
Mineral property interests	191,490	191,490
Tonkin Properties
Mineral Property Interests
Mineral property interests	4,833	4,833
Gold Bar Mine
Mineral Property Interests
Mineral property interests	12,982	11,790
Elder Creek Exploration Property
Mineral Property Interests
Mineral property interests	785	785
Fenix Project Properties
Mineral Property Interests
Mineral property interests	$ 9,047	$ 9,160

X

- Definition

Mineral Property Interests [Line Items]

+ References

No definition available.

+ Details

Name:	mux_MineralsPropertyInterestsLineItems
Namespace Prefix:	mux_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Mineral properties, net of adjustments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 25
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=96866604&loc=d3e64895-109465

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

Name:	us-gaap_MineralPropertiesNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_BlackFoxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_LexamVgGoldMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_LosAzulesCopperProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_TonkinPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_GoldBarMineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_ElderCreekExplorationPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	mux_MineralPropertyNameAxis=mux_FenixProjectPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: