Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
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The weighted average exercise price of other equity instruments (ie other than share options) granted in a share-based payment arrangement. [Refer: Weighted average [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 45
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard
-URIDate 2021-03-24

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Expected Dividend As Percentage, Other Equity Instruments Granted

No definition available.

Name:	mx_ExpectedDividendAsPercentageOtherEquityInstrumentsGranted
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Expected Forfeiture As Percentage, Other Equity Instruments Granted

No definition available.

Name:	mx_ExpectedForfeitureAsPercentageOtherEquityInstrumentsGranted
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Data Type:	num:percentItemType
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Expected Volatility, Other Equity Instruments Granted

No definition available.

Name:	mx_ExpectedVolatilityOtherEquityInstrumentsGranted
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Data Type:	num:percentItemType
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Other Equity Instruments Life, Other Equity Instruments Granted

No definition available.

Name:	mx_OtherEquityInstrumentsLifeOtherEquityInstrumentsGranted
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Balance Type:	na
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Risk Free Interest Rate, Other Equity Instruments Granted

No definition available.