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Disclosure of detailed information about reclamation bonds (Details) - CAD ($)	Dec. 31, 2017	Dec. 31, 2016
Statement [Line Items]
Reclamation bonds	$ 515,748	$ 639,427
Australia [Member]
Statement [Line Items]
Reclamation bonds	0	67,694
Sweden [Member]
Statement [Line Items]
Reclamation bonds	12,625	8,043
Turkey [Member]
Statement [Line Items]
Reclamation bonds	5,669	26,362
USA [Member]
Statement [Line Items]
Reclamation bonds	$ 497,454	$ 537,328

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- Definition

Reclamation bonds

+ References

No definition available.

+ Details

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Namespace Prefix:	emx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Definition

Statement [Line Items]

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

Name:	emx_ExplorationAndEvaluationAssetsByGeographyAxis=country_TR
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- Details

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