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Share-based payments - 2021 Executive Director Liquidity and Price Target Options (Details) - 2021 Executive Director Liquidity and Price Target Options |  | 12 Months Ended
--- | --- | ---
Jan. 20, 2021 shares $ / shares | Jan. 20, 2021 shares $ / shares | Jun. 30, 2024
Share-based payments [Abstract] |  |  |
Expiration date of share based payment arrangement grants |  |  | Dec. 20, 2025
Entities Controlled by Daniel Roberts |  |  |
Share-based payments [Abstract] |  |  |
Granted during the year (in shares) | 1,000,000 | 1,000,000 |
Exercise price (in dollars per share) | (per share) | $ 3.868 | $ 5.005 |
Entities Controlled by William Roberts |  |  |
Share-based payments [Abstract] |  |  |
Granted during the year (in shares) | 1,000,000 | 1,000,000 |
Exercise price (in dollars per share) | (per share) | $ 3.868 | $ 5.005 |

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- Definition The number of share options granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The date on which share-based payment arrangements grants are expired, in CCYY-MM-DD format. + References No definition available. + Details
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- Details
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