v3.26.1
Summary of Operations and Significant Accounting Policies - Schedule of Fair Value of Financial Instruments That Were Measured at Fair Value on a Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financial Assets:    
Fair Value $ 522,453 $ 51,475
Total financial assets 541,228 57,632
Financial Liabilities:    
Contingent obligation 3,288 1,828
Total financial liabilities 3,288 1,828
Level 1    
Financial Assets:    
Total financial assets 151,596 57,632
Financial Liabilities:    
Contingent obligation 3,288 0
Total financial liabilities 3,288 0
Level 2    
Financial Assets:    
Total financial assets 389,632 0
Financial Liabilities:    
Contingent obligation 0 0
Total financial liabilities 0 0
Level 3    
Financial Assets:    
Total financial assets 0 0
Financial Liabilities:    
Contingent obligation 0 1,828
Total financial liabilities 0 1,828
US Treasury Securities    
Financial Assets:    
Fair Value 132,821 12,076
US Treasury Securities | Level 1    
Financial Assets:    
Fair Value 132,821 12,076
US Treasury Securities | Level 2    
Financial Assets:    
Fair Value 0 0
US Treasury Securities | Level 3    
Financial Assets:    
Fair Value 0 0
Money market funds    
Financial Assets:    
Cash equivalents 18,775 6,157
Money market funds | Level 1    
Financial Assets:    
Cash equivalents 18,775 6,157
Money market funds | Level 2    
Financial Assets:    
Cash equivalents 0 0
Money market funds | Level 3    
Financial Assets:    
Cash equivalents 0 0
Corporate Debt    
Financial Assets:    
Fair Value 389,632 39,399
Corporate Debt | Level 1    
Financial Assets:    
Fair Value 0 39,399
Corporate Debt | Level 2    
Financial Assets:    
Fair Value 389,632 0
Corporate Debt | Level 3    
Financial Assets:    
Fair Value $ 0 $ 0