v3.25.4
Stock-Based Compensation - Summary of share based Payment Arrangement Option Activity (Detail) - Service And Performance Based Options [Member] - Two Thousand And Twenty Incentive Plan [Member] - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Number of options, Beginning balance 40,042,922  
Number of Options, Granted 18,471,241  
Number of Options, Exercised (7,923,098)  
Number of options, Cancelled or forfeited (7,057,939)  
Number of options, Ending balance 43,533,126 40,042,922
Number of options, Options exercisable 19,002,507  
Weighted-Average Exercise Price, Beginning $ 3.81  
Weighted-Average Exercise Price, Granted [1] 1.82  
Weighted-Average Exercise Price, Exercised 1.32  
Weighted-Average Exercise Price, Cancelled or forfeited 5.38  
Weighted-Average Exercise Price, Outstanding 3.11 [2] $ 3.81
Weighted-Average Exercise Price, Options exercisable $ 4.77  
Weighted-Average Remaining Contractual Term (Years) 7 years 4 months 24 days 7 years 3 months 14 days
Weighted-Average Remaining Contractual Term (Years), Options exercisable 6 years 1 month 17 days  
Aggregate Intrinsic Value, Outstanding $ 75,466 $ 5,119
Aggregate Intrinsic Value, Options exercisable $ 23,654  
[1] Includes (a) 13,356,500 stock options that will vest according to certain time-based vesting conditions, (b) 3,568,488 stock options that will vest upon the satisfaction of certain performance obligations, and (c) 1,546,258 stock options issued pursuant to the Beckley Psytech Transaction, all of which are fully vested upon issuance.
[2] 22,984,366 outstanding unvested stock options includes (a) 18,299,784 stock options that will continue to vest over various service periods, (b) 3,568,488 stock options that will vest upon the satisfaction of certain performance obligations, (c) 1,116,094 stock options that will vest upon the satisfaction of specified market-based conditions tied to the price of the Company's publicly traded stock.