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One-Time Employee Termination Benefits - Additional Information (Detail)
1 Months Ended 12 Months Ended
Aug. 31, 2024
USD ($)
Jun. 30, 2024
USD ($)
Employee
Jun. 30, 2023
USD ($)
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Severance costs | $ $ 6,000,000    
Number of workforce reduction | Employee   11  
Research and development      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Severance costs | $   $ 242,000 $ 2,800,000
Number of workforce reduction | Employee   5  
General and administrative      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Severance costs | $   $ 314,000 $ 800,000
Number of workforce reduction | Employee   6