v3.25.4

Stockholders' equity - Summary of share-based compensation expense (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2025 | Dec. 31, 2024
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |  |  |  |
Share-based compensation expense | $ 7,379 | $ 3,138 | $ 12,559 | $ 3,573
Research and development [Member] |  |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |  |  |  |
Share-based compensation expense | 2,667 | 436 | 3,535 | 549
General and administrative [Member] |  |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |  |  |  |
Share-based compensation expense | $ 4,712 | $ 2,702 | $ 9,024 | $ 3,024

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