Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Statement of changes in equity [abstract]
Dividends payments to Methanex Corporation shareholders (in usd per share)	$ 0.325	$ 0.473

The amount, per share, of dividends recognised as distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 107
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_107&doctype=Standard
-URIDate 2021-03-24

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