v3.26.1
Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]    
Research and development $ 142,631 $ 101,200
Interest income, net (7,095) (6,337)
Net loss (153,224) (120,613)
Stock based compensation expense 13,534 18,395
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense    
Segment Reporting [Line Items]    
Stock based compensation expense 6,342 10,530
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost    
Segment Reporting [Line Items]    
Stock based compensation expense 7,192 7,865
Reportable Segment    
Segment Reporting [Line Items]    
Personnel-related general and administrative 12,116 17,832
Other general and administrative 5,576 8,192
Interest income, net (7,095) (6,337)
Other segment items (4) (274)
Net loss 153,224 120,613
Reportable Segment | Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense    
Segment Reporting [Line Items]    
Stock based compensation expense 6,520 10,645
Reportable Segment | Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost    
Segment Reporting [Line Items]    
Stock based compensation expense 7,254 7,865
Reportable Segment | Endocrine diseases    
Segment Reporting [Line Items]    
Research and development 42,885 19,329
Reportable Segment | Neurological diseases    
Segment Reporting [Line Items]    
Research and development 25,455 20,937
Reportable Segment | Rheumatology diseases    
Segment Reporting [Line Items]    
Research and development 22,340 8,209
Reportable Segment | Dermatology diseases    
Segment Reporting [Line Items]    
Research and development 7,542 5,145
Reportable Segment | Other clinical and nonclinical    
Segment Reporting [Line Items]    
Research and development 2,609 2,392
Reportable Segment | Other unallocated research and development    
Segment Reporting [Line Items]    
Research and development 8,303 10,685
Reportable Segment | Personnel-related research and development    
Segment Reporting [Line Items]    
Research and development $ 33,497 $ 34,503