Warrants and warrant liability - Disclosure of outstanding warrants to acquire common shares of the Company (Parenthetical) (Detail) - $ / shares |
Dec. 31, 2025 |
Oct. 20, 2025 |
|---|---|---|
| Disclosure Of Outstanding Warrant Liabilities [Line Items] | ||
| Number of warrants | 18,650,000 | 4,550,000 |
| Exercise price | $ 2.36 | $ 0.001 |