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Stock-Based Compensation - Additional Information (Detail)
 12 Months Ended
Jun. 21, 2023
shares
Dec. 31, 2023
USD ($)
Milestone
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options granted   11,026,451 1,267,700
Shares weighted average grant date fair valueof stock options granted | $ / shares   $ 1.6 $ 2.76
Number of specific clinical development milestones achieved | Milestone   0  
Aggregate intrinsic value of options exercised | $   $ 0  
Unrecognized stock-based compensation expense | $   $ 12,400,000  
Unrecognized stock-based compensation expense, recognized over estimated weighted average period   2 years 4 months 24 days  
Time Based Vesting Requirements [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options granted   1,476,372  
Time-based and Performance-based Vesting Requirements [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options granted   7,381,857  
Stock options granted   5,905,485  
2014 Stock Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, number of shares reserved for issuance   0  
2020 Long Term Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, number of shares reserved for issuance   3,093,742  
Increased number of shares 9,600,000    
New aggregate share limit 14,460,000    
2014 Employee Stock Purchase Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, number of shares reserved for issuance   24,077