Note 18 - Related Party Transactions (Details Textual) - Juanicipio [member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Statement Line Items [Line Items]
Equity method investment, ownership percentage	44.00%	44.00%
Shareholder loans [member]
Statement Line Items [Line Items]
Receivables due from related parties	$ 94,414
Interest income on loans and receivables	$ 8,150	$ 1,058
Shareholder loans [member] \| Secured overnight financing rate (SOFR) [member]
Statement Line Items [Line Items]
Receivables, adjustment to interest rate basis	2.00%
Shareholder loans [member] \| MAG and Fresnillo PLC [member]
Statement Line Items [Line Items]
Receivables due from related parties	$ 214,586

The amount of interest income on loans and receivables. [Refer: Interest income; Loans and receivables]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expired 2023-01-01
-Name IAS
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-IssueDate 2023-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2023-03-23

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Balance Type:	credit
Period Type:	duration

- Definition

The amount of receivables due from related parties. [Refer: Related parties [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 78
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2023-03-23

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on receivables.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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