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Non-controlling interests - Cash flows (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Feb. 01, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of subsidiaries [line items] |  |  |
Cash flows from operating activities |  | $ 987,349 | $ 994,369
Cash flows from (used in) financing activities |  | (508,534) | (643,093)
Cash flows from (used in) investing activities |  | (553,137) | (253,048)
Total |  |  |
Disclosure of subsidiaries [line items] |  |  |
Cash flows from operating activities |  | 320,982 | 54,009
Cash flows from (used in) financing activities |  | (205,602) | (82,983)
Cash flows from (used in) investing activities |  | (34,895) | (35,875)
Methanex Egypt |  |  |
Disclosure of subsidiaries [line items] |  |  |
Cash flows from operating activities |  | 226,647 | 26,049
Cash flows from (used in) financing activities |  | (152,806) | (84,382)
Cash flows from (used in) investing activities |  | (35,110) | (4,563)
Waterfront Shipping Limited |  |  |
Disclosure of subsidiaries [line items] |  |  |
Cash flows from operating activities |  | 94,335 |
Cash flows from (used in) financing activities |  | (52,796) |
Cash flows from (used in) investing activities |  | $ 215 |
Waterfront Shipping Limited | Mitsui O.S.K. Lines, Ltd. (MOL) |  |  |
Disclosure of subsidiaries [line items] |  |  |
Proportion of ownership interests held by non-controlling interests | 40.00% |  |
Vessels |  |  |
Disclosure of subsidiaries [line items] |  |  |
Cash flows from operating activities |  |  | 27,960
Cash flows from (used in) financing activities |  |  | 1,399
Cash flows from (used in) investing activities |  |  | $ (31,312)

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