v3.22.4
The Company and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2022
Jun. 30, 2022
Targeted or Tracking Stock, Stock [Line Items]    
Reduction of workforce 27.00%  
Severance benefits, and related costs $ 1,200  
Unrecognized tax benefits   $ 0
Accumulated Losses Since Inception (380,530) (374,159)
Cash And Cash Equivalents,Short Term Investments And Common Stock Proceeds Receivable 124,200  
Deferred Revenue, Revenue Recognized 67,400 95,400
Research and Development    
Targeted or Tracking Stock, Stock [Line Items]    
Severance benefits, and related costs 800  
General and Administrative Expense Member    
Targeted or Tracking Stock, Stock [Line Items]    
Severance benefits, and related costs $ 400  
Pass Through Services Member    
Targeted or Tracking Stock, Stock [Line Items]    
Percentage of reimbursement of pass through costs as revenue 100.00%  
US License    
Targeted or Tracking Stock, Stock [Line Items]    
Deferred Revenue, Revenue Recognized $ 64,500  
Development Services Performance Obligations    
Targeted or Tracking Stock, Stock [Line Items]    
Deferred Revenue, Revenue Recognized $ 2,900 $ 30,900