v3.25.2
Fair Value Measurements - Summary of Information About Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Liabilities:    
Earn-out Liability $ 6,400 $ 45,900
Fair Value, Inputs, Level 1    
Assets:    
Assets 81,832 29,806
Liabilities:    
Derivative liabilities 48,680 70,265
Fair Value, Inputs, Level 1 | Money market funds    
Assets:    
Cash equivalents 23,697 29,806
Fair Value, Inputs, Level 1 | US treasury securities, short term    
Assets:    
Assets 58,135  
Fair Value, Inputs, Level 2    
Assets:    
Assets 456,324 174,323
Fair Value, Inputs, Level 2 | U.S. treasury securities    
Assets:    
Cash equivalents   24,835
Fair Value, Inputs, Level 2 | US treasury securities, short term    
Assets:    
Assets 310,421 124,420
Fair Value, Inputs, Level 2 | US treasury securities, long term    
Assets:    
Assets 145,903 25,068
Fair Value, Inputs, Level 3    
Liabilities:    
Derivative liabilities 17,807 68,727
Fair Value, Inputs, Level 3 | Earn-out liabilities    
Liabilities:    
Earn-out Liability 6,371 45,897
Public Warrants | Fair Value, Inputs, Level 1 | Derivative    
Liabilities:    
Derivative liabilities 48,680 70,265
Private Warrants | Fair Value, Inputs, Level 3 | Derivative    
Liabilities:    
Derivative liabilities $ 11,436 $ 22,830