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Share-based payments - Disclosure of reconciliation of AGAs (Details) - shares |  |  |  |  |  |  |  |  | 6 Months Ended | 12 Months Ended | 18 Months Ended
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Sep. 05, 2024 | Jul. 11, 2024 | May 23, 2024 | Mar. 28, 2024 | Jan. 02, 2024 | Dec. 01, 2023 | Sep. 28, 2023 | Jul. 11, 2023 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2024
Free Shares (AGA) |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 2,601,296 |
Number of instruments issued (in shares) |  |  |  |  |  |  |  |  | 2,601,296 | 1,946,125 | 4,547,421
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (744,362) |
Number of instruments exercised (in shares) |  |  |  |  |  |  |  |  |  | (415,019) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 2,601,296 | 3,388,040 | 3,388,040
AGA-2023-1 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 1,382,796 |
Number of instruments issued (in shares) |  |  |  |  |  |  |  | 1,382,796 |  |  |
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (212,737) |
Number of instruments exercised (in shares) |  |  |  |  |  |  |  |  |  | (390,019) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 1,382,796 | 780,040 | 780,040
AGA-2023-2 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 100,000 |
Number of instruments issued (in shares) |  |  |  |  |  |  |  | 100,000 |  |  |
Number of instruments exercised (in shares) |  |  |  |  |  |  |  |  |  | (25,000) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 100,000 | 75,000 | 75,000
AGA-2023-3 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 731,500 |
Number of instruments issued (in shares) |  |  |  |  |  |  | 731,500 |  |  |  |
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (245,625) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 731,500 | 485,875 | 485,875
AGA-2023-4 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 254,250 |
Number of instruments issued (in shares) |  |  |  |  |  |  | 254,250 |  |  |  |
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (41,000) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 254,250 | 213,250 | 213,250
AGA-2023-5 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  | 132,750 |
Number of instruments issued (in shares) |  |  |  |  |  | 132,750 |  |  |  |  |
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (51,500) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  | 132,750 | 81,250 | 81,250
AGA-2024-1 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  |  |  |  | 1,549,125 |  |  |  |  | 1,549,125 |
Number of instruments lapsed (in shares) |  |  |  |  |  |  |  |  |  | (193,500) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 1,355,625 | 1,355,625
AGA-2024-2 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  |  |  | 22,500 |  |  |  |  |  | 22,500 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 22,500 | 22,500
AGA-2024-3 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  |  | 38,500 |  |  |  |  |  |  | 38,500 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 38,500 | 38,500
AGA-2024-4 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  | 93,000 |  |  |  |  |  |  |  | 93,000 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 93,000 | 93,000
AGA-2024-5 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  | 25,000 |  |  |  |  |  |  |  | 25,000 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 25,000 | 25,000
AGA-2024-6 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) |  | 20,000 |  |  |  |  |  |  |  | 20,000 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 20,000 | 20,000
AGA-2024-7 |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  |  |  |  |  |  |
Number of instruments issued (in shares) | 198,000 |  |  |  |  |  |  |  |  | 198,000 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  |  |  |  |  | 198,000 | 198,000

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