v3.25.4
Segment reporting - Additional Information (Detail)
6 Months Ended
Dec. 31, 2025
Segment
Segment Reporting [Abstract]  
Number of reportable segments 1
Number of operating segments 1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] srt:ChiefExecutiveOfficerMember
Segment reporting, expense information used by codm, description which is the business of discovery and development of therapeutic agents in the treatment of genetic disorders.
Segment reporting, codm, profit (loss) measure, how used, description The CODM uses comprehensive net loss in making decisions regarding resource allocation and evaluating financial performance, which is also reported on the consolidated statements of operations and comprehensive loss.