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v3.19.1

RECEIVABLES (Narrative) (Details) - CAD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statements Line Items |  |  |
Change in value through profit or loss assets related to Akarca receivable balance | $ 104,788 | $ 37,299 | $ 120,900

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- Definition Represents change in value through profit or loss assets related to Akarca receivable balance. + References No definition available. + Details
Name: | emx_ChangeInValueThroughProfitOrLossAssetsRelatedToAkarcaReceivableBalance
Namespace Prefix: | emx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Statement [Line Items] + References No definition available. + Details
Name: | emx_StatementsLineItems
Namespace Prefix: | emx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration