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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 28, 2025
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Jan. 01, 2024
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Weighted-average remaining contractual term outstanding   5 years 4 months 6 days      
Stock subject to repurchase related to stock options early exercised and unvested   163,039   211,184  
Stock repurchase program, remaining authorized repurchase amount   $ 0.4   $ 0.4  
Time Based Restricted Stock Units Rsu [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
PSUs ,Granted   206,316 1,064,518    
Performance Based Restricted Stock Units [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Dividend yield   0.00% 0.00%    
Share based compensation by share based award vesting term 3 years        
PSUs ,Granted   965,630      
Target percentage of number of shares earned   100.00%      
Performance Based Restricted Stock Units [Member] | Maximum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   4 years      
Percentage of number of shares earned 200.00% 300.00%      
Performance Based Restricted Stock Units [Member] | Minimum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   3 years      
Percentage of number of shares earned 0.00% 0.00%      
Stock Options [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Dividend yield   0.00%      
2015 Equity Incentive Plan [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Weighted-average remaining contractual term outstanding   10 years      
2015 Equity Incentive Plan [Member] | Maximum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   5 years      
2015 Equity Incentive Plan [Member] | Minimum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   4 years      
2021 Equity Incentive Plan [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Shares reserved for issuances         14,532,010
Weighted-average remaining contractual term outstanding   10 years      
Number of Shares Available for Grant   33,470,867      
Share based compensation arrangement by share based payment award cumulative annual increase percentage   5.00%      
2021 Equity Incentive Plan [Member] | Maximum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   4 years      
2021 Equity Incentive Plan [Member] | Minimum [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Share based compensation by share based award vesting term   1 year